MX2008003717A - Method and apparatus for detecting moisture in building materials - Google Patents

Abstract

A moisture sensor system is described. In one embodiment, the provides an adjustable threshold level for the sensed moisture level. The adjustable threshold allows the moisture sensor to adjust to ambient conditions, aging of components, and other operational variations while still providing a relatively sensitive detection capability. In one embodiment, the adjustable threshold moisture sensor is used in an intelligent sensor system that includes one or more intelligent sensor units and a base unit that can communicate with the moisture sensor units. When one or more of the moisture sensor units detects a excess moisture the moisture sensor unit communicates with the base unit and provides data regarding the moisture condition. The base unit can contact a supervisor or other responsible person by a plurality of techniques, such as, telephone, pager, cellular telephone, Internet (and/or local area network), etc. In one embodiment, one or more wireless repeaters are used between the moisture sensor units and the base unit to extend the range of the system and to allow the base unit to communicate with a larger number of sensors.

Description

METHOD AND APPARATUS FOR DETECTING HUMIDITY IN CONSTRUCTION MATERIALS FIELD OF THE INVENTION The present invention is concerned with a detector system for detecting and determining the moisture severity in construction materials, such as wood, dry wall, plaster, etc.

BACKGROUND OF THE INVENTION The maintenance and protection of a building or complex is difficult and expensive. Some conditions, such as fires, gas leaks, etc., are a danger to the occupants and the structure. Other malfunctions, such as humidity on roofs, plumbing, walls, etc., are not necessarily dangerous for the occupants, but can nevertheless cause considerable damage. In many cases, an adverse environmental condition such as water leakage, fire, etc., is not detected in the early stages when the damages and / or hazards are relatively small. Detectors can be used to detect such adverse environmental conditions, however the detectors present their own sets of problems. For example, the addition of detectors, such as, for example, smoke detectors, water detectors and the like in an existing structure can be prohibitively expensive due to the cost of installing the wiring between the remote detectors and a centralized monitoring device used to monitor the detectors. The addition of wiring to provide power to the detectors also increases the cost.

BRIEF DESCRIPTION OF THE INVENTION The present invention solves these and other problems by providing a relatively cost-effective, robust wireless detector system that provides an extended period of maintenance-free operation. The system includes one or more intelligent detector units and a base unit that can communicate with the detector units. When one or more of the detector units detects an anomalous condition (e.g., humidity, smoke, fire, water, etc.) the detector unit communicates with the base unit and provides data regarding the abnormal condition. The base unit can be contacted by a supervisor or other responsible person through a plurality of techniques, such as telephone, pager, cell phone, Internet (and / or local area network), etc. In one embodiment, one or more wireless repeaters are used between the detector units and the base unit to extend the range of the system and to allow the base unit to communicate with a larger number of detectors.

In one embodiment, the detector system includes a number of detector units located throughout a building that detect conditions and report anomalous results back to a central reporting station. The detector units measure conditions that could indicate a fire, water leak, etc. The detector units report the measured data to the base unit whenever the detector unit determines that the measured data is sufficiently anomalous to be reported. The base unit can notify a responsible person, such as, for example, the building administrator, the building owner, private security service, etc. In one embodiment, the detector units do not send an alarm signal to the central location. Rather, the detectors send quantitative measured data (eg, smoke density, temperature rise rate, etc.) to the central reporting station. In one embodiment, the detector unit is placed in a building, apartment, office, residence, etc. To save battery power, the detector is normally placed in a low power consumption mode. In one embodiment, while in the low power consumption mode, the detector unit takes regular detector readings and evaluates the readings to determine if an abnormal condition exists. If an anomalous condition is detected, then the detector unit "wakes up" and starts to communicate with the base unit or with a repeater. At programmed intervals, the detector "wakes up" and sends status information to the base unit (or repeater) and then listens for a period of time. In one embodiment, the detector unit is bi-directional and is configured to receive instructions from the central reporting station (or repeater). Thus, for example, the central reporting station can instruct the detector to: perform additional measurements; move to a standby mode; that wakes up; report battery status; to change the interval of awakening; to execute self-diagnosis and report results; etc. In one embodiment, the detector unit also includes a tamper-resistant switch. When tampering is detected with the detector, the detector reports such tampering to the base unit. In one mode, the detector reports its general health and status to the central reporting station on a regular basis (eg, self-diagnostic results, battery health, etc.). In one embodiment, the detector unit provides two wake-up modes, a first wake-up mode for taking measurements (and reporting such measurements if deemed necessary) and a second wake-up mode for listening to commands from the central reporting station. The two modes of awakening or combinations thereof, can occur at different intervals.

In one embodiment, the detector units use spread spectrum techniques to communicate with the base unit and / or the repeater units. In one embodiment, the detector units use frequency hopping spread spectrum. In one embodiment, each detector unit has an identification code (ID) and the detector units append their ID to the outgoing communication packets. In one embodiment, when wireless data is received, each detector unit ignores data that is intended for other detector units. The repeater unit is configured to relieve the communications traffic between a number of detector units and the base unit. The repeater units commonly operate in an environment with several other repeater units and thus, each repeater unit contains a database (eg, a look-up table) of the detector ID. During normal operation, the repeater only communicates with designated wireless detector units whose IDs appear in the repeater's database. In one mode, the repeater is put into operation with batteries and saves energy by maintaining an internal schedule or when its designated detectors are expected to transmit and advance to a low power consumption mode when none of its designated detector units are programmed. to broadcast. In one embodiment, the repeater uses spread spectrum to communicate with the Base unit and detector units. In one embodiment, the repeater uses frequency hopping spread spectrum to communicate with the base unit and the detector units. In one embodiment, each repeater unit has an ID and the repeater unit append its ID to the outgoing communication packets that originate in the repeater unit. In one embodiment, each repeater unit ignores data that is intended for other repeater units or detector units that are not serviced by the repeater. In one embodiment, the repeater is configured to provide bi-directional communication between one or more detectors and a base unit. In one embodiment, the repeater is configured to receive instructions from the central (or repeater) reporting station. Thus, for example, the central reporting station can instruct the repeater to: send commands to one or more detectors; advance to standby mode; that "wake up"; report battery status; to change the interval of awakening; to run self-diagnostics and report results; etc. The base unit is configured to receive measured detector data from a number of detector units. In one embodiment, the detector information is relieved by means of the repeater units. The base unit also sends commands to the repeater units and / or detector units. In one mode, the base unit includes a PC no disk running from a CD-ROM, flash memory, DVD, or other read-only device, etc. When the base unit receives data from a wireless detector that indicates that there may be an emergency condition (eg, fire or excessive smoke, temperature, water, flammable gas, etc.) the base unit will attempt to notify a responsible party (for example, the building administrator) through various communication channels (for example, telephone, Internet, pager, cell phone, etc.). In one embodiment, the base unit sends instructions to place the wireless detector in an alert mode (inhibiting the low power consumption mode of the wireless detector). In one embodiment, the base unit sends instructions to activate one or more additional detectors near the first detector. In one embodiment, the base unit maintains a database of health, battery status, signal strength and current operating status of all detector units and repeater units in the wireless detector system. In one mode, the base unit automatically performs routine maintenance by sending commands to each detector to perform a self-diagnosis and report the results. The base unit collects such diagnostic results. In one embodiment, the base unit sends instructions to each detector telling the detector when to wait between "wake up" intervals. In one modality, the base unit program different intervals of awakening to different detectors based on the health of the detector, battery health, location, etc. In one embodiment, the base unit sends instructions to the repeaters to route or channel detector information around a failed repeater. In one embodiment, the detector unit is configured to detect moisture in construction materials such as, for example, dry wall, wood, plaster, concrete, etc. In one embodiment, two or more conductors are provided in proximity to the construction material. The conductors are provided to a detector unit. In one embodiment, a relatively low cost, robust moisture detector system, which provides an adjustable threshold level for the detected humidity level. The adjustable threshold allows the humidity detector to adjust to environmental conditions, aging of the components and other variations of operation while still providing a relatively sensitive detection capability for hazardous conditions. The adjustable threshold humidity detector can operate for an extended period of operation without maintenance or recalibration. In one embodiment, the humidity detector is self-calibrated and put into operation by means of a calibration sequence at startup or at periodic intervals. In one embodiment, the adjustable threshold humidity detector is used in an intelligent detector system that it includes one or more intelligent detector units and a base unit that can communicate with the humidity detector units. When one or more of the moisture detector units detects an abnormal condition (eg humidity, fire, water, etc.) the humidity detector unit communicates with the base unit and provides data regarding the abnormal condition . The base unit can be contacted by a supervisor or another responsible person through a plurality of techniques, such as telephone, pager, cell phone, Internet (and / or local area network), etc. In one embodiment, one or more wireless repeaters are used between the humidity detector units and the base unit to extend the range of the system and allow the base unit to communicate with a larger number of detectors. In one embodiment, the adjustable threshold humidity detector sets or adjusts a threshold level according to an average reading value of the humidity detector. In a modality, the average value is a relatively long-term average. In one embodiment, the interval is a time-weighted average where recent detector readings used in the averaging process are weighted differently than the less recent detector readings. The average is used to establish the threshold level. When the moisture detector reading rises above the threshold level, the humidity detector indicates a condition of alarm. In one embodiment, the humidity detector indicates an alarm condition when the humidity detector reading rises above the threshold value for a specified period of time. In one embodiment, the humidity detector indicates an alarm condition when a statistical number of detector readings (e.g., 3 of 2, 5 of 3, 10 of 7, etc.) are above the threshold level. In one embodiment, the humidity detector indicates several levels of alarm (eg, notification, alert, alarm) based on how far above the threshold the humidity detector reading has risen and / or how quickly the reading of the humidity detector has been raised. In one embodiment, the humidity detector system includes a number of detector units located throughout a building that detect conditions and report anomalous results back to a central reporting station. Moisture detector units measure conditions that could indicate a fire, water leak, etc. The humidity detector units report the measured data to the base unit whenever the humidity detector unit determines that the measured data are sufficiently anomalous to be reported. The base unit can notify a responsible person such as, for example, the building administrator, the building owner, private security service, etc. In one embodiment, the detector units of humidity do not send an alarm signal to the central location. Rather, humidity detectors send quantitative measured data (eg, humidity, rate of rise, time duration, etc.) to the central reporting station. In one embodiment, the humidity detector system includes a battery operated detector unit that detects moisture in construction materials. The humidity detector unit is placed in a building, apartment, office, residence, etc. and provided with a humidity probe. In order to save battery power, the humidity detector is normally placed in a low power consumption mode. In one mode, while in the low power consumption mode, the humidity detector unit takes regular detector readings, adjusts the threshold level and evaluates the readings to determine if there is an abnormal condition. If an abnormal condition is detected, then the humidity detector unit "wakes up" and begins to communicate with the base unit or with a repeater. At programmed intervals, the humidity detector also "wakes up" and sends status information to the base unit (or repeater) and then hears commands for a period of time.

BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows a detector system including a plurality of detector units communicating with a base unit by means of a number of repeater units. Figure 2 is a block diagram of a detector unit. Figure 3 is a block diagram of a repeater unit. Figure 4 is a block diagram of the base unit. Figure 5 shows one mode of a network communication packet used by the detector units, repeater units and the base unit. Figure 6 is a flow chart showing the operation of a detector unit that provides relatively continuous monitoring. Figure 7 is a flow chart showing the operation of a detector unit that provides periodic monitoring. Figure 8 shows a detector system in which relatively inexpensive detectors provide detector readings and / or status information to an area monitor that communicates with a base unit.

Figure 9 shows a humidity detector including an impedance detector provided to one or more impedance probes. Figure 10 shows the impedance detector of Figure 9 provided to an impedance probe configured as a pair of conductive bands. Figure 11 is a schematic of an impedance detector configured to measure the impedance when using a voltage source and a current detector. Figure 12 is a schematic of an impedance detector configured to measure the impedance when using a current source and a voltage detector. Figure 13 is a schematic of an impedance detector configured to measure the impedance using a bridge. Figure 14 shows a humidity detector including a time / frequency domain impedance detector provided to an impedance probe. Figure 15 is a graph showing an example result or output of the time-frequency domain impedance detector when a relatively small wet area is detected. Figure 16 is a graph showing an exemplary result or output of the time-frequency domain impedance detector when a larger wet area is detected.

Figure 17 is a schematic of a mode of a time-domain impedance detector. Figure 18 is a rear view showing the impedance detector provided to a mold. Figure 19 is a front view of the mold of Figure 9 showing a method for connecting the detector unit 902 to the impedance probe. Figure 20 shows an impedance probe configured for application of peeling and gluing to a mold. Figure 21 shows an impedance probe configured for application of peeling and gluing to a wall or other construction material. Figure 22 shows an installation of the humidity detector unit to an impedance probe provided between a wall or ceiling and a mold, wherein the detector unit is mounted to the wall (or ceiling). Figure 23 shows an installation of the humidity detector unit to an impedance probe provided between a wall or ceiling and a mold, wherein the detector unit is mounted to the mold. Figure 24 shows the impedance probes of figures 20 or 21 wrapped around a corner. Figure 25 shows the impedance probes of figures 20 or 21 superimposed to cover a larger area.

Figure 26 shows a humidity detector and self-test detector provided with a humidity probe.

DETAILED DESCRIPTION OF THE INVENTION Figure 1 shows a detector system 100 including a plurality of detector units 102-106 communicating with a base unit 112 by means of a number of repeater units 110-111. The detector units 102-106 are located throughout an entire building 101. The detector units 102-104 communicate with the repeater 110. The detector units 105-106 communicate with the repeater 111. The repeaters 110-111 are connected to the repeater 110-111. communicate with the base unit 112. The base unit 112 communicates with a computer system, monitoring 113 by means of a computer network connection such as Ethernet, wireless Ethernet, security server port, port of main universal serial distribution line (USB), bluetooth, etc. The computer system 113 contacts the building administrator, maintenance service, alarm service or other responsible personnel 120 using one or more of several communication systems such as, for example, telephone 121, pager 122, cell phone 123 (for example, direct contact, voice mail, text, etc.), and / or via the Internet and / or local area network 124 (for example, by means of email, instant messaging, network communications, etc.). In one embodiment, the multiple base units 112 are provided to the monitoring computer 113. In one embodiment, the monitoring computer 113 is provided to more than one computer monitor, thereby allowing more data to be displayed that can conveniently be displayed. in a single monitor. In one embodiment, the monitoring computer 113 is provided to multiple monitors located at different sites, thus allowing the data of the monitoring computer 113 'to be displayed on multiple sites. The detector units 102-106 include sensors for measuring conditions, such as, for example, smoke, temperature, humidity, water, water temperature, humidity, carbon monoxide, natural gas, propane gas, security alarms, intrusion (for example, open doors, broken windows, open windows and the like), other flammable gases, radon, poisonous gases, etc. Different detector units can be configured with different detectors or combinations of detectors. Thus, for example, in one installation the detector units 102 and 104 could be configured with smoke and / or temperature detectors while the detector unit 103 could be configured with a humidity detector. The discussion that follows generally relates to the detector unit 102 as an example of a unit of detector, with the understanding that the description of the detector unit 102 can be applied to many detector units. Similarly, the discussion generally refers to repeater 110 by way of example and not limitation. It will also be understood by those of ordinary skill in the art that repeaters are useful for extending the range of detector units 102-106 but are not required in all modes. Thus, for example in one embodiment, one or more of the detector units 102-106 can communicate directly with the base unit 112 without going through a repeater. It will also be understood by one of ordinary skill in the art that Figure 1 shows only five repeater units (102-106) and two repeater units (110-111) for purposes of illustration and not by way of limitation. An installation in a large or complex apartment building would commonly involve many detector units and repeater units. In addition, one of ordinary skill in the art will recognize that a repeater unit can service relatively many detector units. In one embodiment, the detector unit 102 can communicate directly with the base unit 112 without advancing through a repeater 111. When the detector unit 102 detects an abnormal condition (eg, smoke, fire, water, etc.). ) the detector unit communicates with the repeater unit appropriate 110 and provides data with respect to the anomalous condition. The repeater unit 110 sends the data to the base unit 112 and the base unit 112 sends the information to the computer 113. The computer 113 evaluates the data and takes the appropriate action. If the computer 113 determines that the condition is an emergency (eg, fire, smoke, large amounts of water), then the computer 113 contacts the appropriate personnel 120. If the computer 113 determines that the situation warrants a report, but it is not an emergency, then the computer 113 records the data for its report later. In this manner, the detector system 100 can monitor conditions in and around the building 101. In one embodiment, the detector unit 102 has an internal power source (eg, battery, solar cell, fuel cell, etc.). ). In order to save energy, the detector unit 102 is normally placed in a low power consumption mode. In one embodiment, using detectors that require relatively little energy, while in the low power consumption mode, the detector unit 102 takes regular detector readings and evaluates the readings to determine if an abnormal condition exists. In one embodiment, the use of detectors that require relatively more energy, while in the low power consumption mode, the detector unit 102 takes and evaluates the detector readings at periodic intervals. If an abnormal condition is detected, then the detector unit 102"wakes up" and begins to communicate with the base unit 112 by means of the repeater 110. At programmed intervals, the detector unit 102 also "wakes up" and sends status information. (for example, energy levels, self-diagnostic information, etc.) to the base unit (or repeater) and then listen to commands for a period of time. In one embodiment, the detector unit 102 also includes a tamper detector. When tampering is detected with the detector unit 102, the detector unit 102 reports such tampering to the base unit 112. In one embodiment, the detector unit 102 provides bi-directional communication and is configured to receive data and / or instructions of the base unit 112. Thus, for example, the base unit 112 can instruct the detector unit 102 to make additional measurements, advance to a standby mode, wake it up, report the status of the battery , to change the wake-up interval, to run self-diagnoses and report results, etc. In one embodiment, the detector unit 102 reports its health and general status on a regular basis (eg, self-diagnostic results, battery health, etc.).

In one embodiment, the detector unit 102 provides two wake-up modes, a first wake-up mode for taking measurements (and reporting such measurements if deemed necessary) and a second wake-up mode for listening to commands from the central reporting station. The two modes of awakening or combinations thereof, can occur at different intervals. In one embodiment, the detector unit 102 uses spread spectrum techniques to communicate with the repeater unit 110. In one embodiment, the detector unit 102 utilizes frequency hopping spread spectrum. In one embodiment, the detector unit 102 has an address or identification code (ID) that distinguishes the detector unit 102 from the other detector units. The detector unit 102 append its ID to the outgoing communication packets, in such a way that the transmissions of the detector unit 102 can be identified by the repeater 110. The repeater 110 append the ID of the detector unit 102 to the data and / or instructions that are transmitted to the detector unit 102. In one embodiment, the detector unit 102 ignores data and / or instructions that are intended for other detector units. In one embodiment, the detector unit 102 includes a reset function. In one mode, the reset function is activated by the switch of reset 208. In one mode, the reset function is active for a prescribed time interval. During the reset interval, the transceiver 203 is in receive mode and can receive the identification code of an external programmer. In one embodiment, the external programmer wirelessly transmits a desired identification code. In one embodiment, the identification code is programmed by an external programmer which is connected to the detector unit 102 by means of an electrical connector. In one embodiment, the electrical connection to the detector unit 102 is provided by sending modulated control signals (energy line carrier signals) by means of a connector used to connect the power source 206. In one embodiment, the External programmer provides control and energy signals. In one embodiment, the external programmer also programs the type of detector (s) installed in the detector unit. In one embodiment, the identification code includes an area code (e.g., apartment number, zone number, floor number, etc.) and a unit number (e.g., unit 1, 2, 3, etc.). ). In one embodiment, the external programmer interfaces with the controller 202 by using an optional programming infer 210. In one embodiment, the programming infern 210 includes a connector. In one embodiment, the programming inferred from 210 includes an infrared inferiation.

In one embodiment, the programming interface 210 includes an inductor coupling coil. In one embodiment, the programming interface 210 includes one or more capacitive coupling plates. In one embodiment, the detector communicates with the repeater in the 900 MHz band. This band provides good transmission through walls and other obstacles normally encountered in and around a building structure. In one embodiment, the detector communicates with the repeater in bands above and / or below the 900 MHz band. In one embodiment, the detector, repeater and / or base unit listen to a radiofrequency channel before transmitting in that channel or before the transmission begins. If the channel is in use (for example, by another device such as another repeater, cordless telephone, etc.) then the detector, repeater and / or base unit change to a different channel. In one embodiment, the detector, repeater and / or base unit coordinate the frequency hop when listening to radiofrequency channels in terms of interference and using an algorithm to select a next channel for transmission that avoids interference. Thus, for example, in a mode, if a detector detects a dangerous condition and advances to a continuous transmission mode, the detector will test (eg, listen) the channel before transmission to avoid channels that are blocked, in use or stuck In one mode, the detector continues transmitting data until it receives an acknowledgment from the base unit that the message has been received. In one embodiment, the detector transmits data having a normal priority (e.g., status information) and does not seek acknowledgment and the detector transmits data having high priority (e.g., excess smoke, temperature, etc.) until it is detected. receives an acknowledgment The repeater unit 110 is configured to relieve the communications traffic between the detector 102 (and similarly, the detector units 103-104) and the base unit 112. The repeater unit 110 commonly operates in an environment with several other units of repeater (such as repeater unit 111 in FIG. 1) and thus, repeater unit 110 contains a database (e.g., look-up table) of detector unit ID. In Figure 1, the repeater 110 has database entries for the IDs of the detectors 102-104 and thus, the detector 110 will communicate only with the detector units 102-104. In one embodiment, the repeater 110 has an internal power source (eg, battery, solar cell, fuel cell, etc.) and saves energy by maintaining an internal time when the detector units 102-104 are expected to transmit. . In one embodiment, the repeater unit 110 advances to a low power consumption mode when none of its designated detector units is programmed to transmit. In one embodiment, the repeater 110 uses spread spectrum techniques to communicate with the base unit 112 and with the detector units 102-104. In one embodiment, the repeater 110 utilizes frequency hopping spread spectrum to communicate with the base unit 112 and the detector units 102-104. In one embodiment, the repeater unit 110 has an address or identification code (ID) and the repeater unit 110 append its address to the outgoing communication packets that originate in the repeater (that is, packets that are not sent) . In one embodiment, the repeater unit 110 ignores data and / or instructions that are intended for other repeater units or detector units that are not serviced by the repeater 110. · In a mode, the unit of. base 112 communicates with the detector unit 102 when transmitting a communication packet destined to the detector unit 102. The repeaters 110 and 111 both receive the communication packet destined to the detector unit 102. The repeater unit 111 ignores the communication packet destined to the detector unit 102. The repeater unit 110 · transmits the communication packet destined to the detector unit 102 to the detector unit 102. In one embodiment, the detector unit 102, the repeater unit 110 and base unit 112 communicate using frequency hopping spread spectrum (FHSS), also known as channel hopping.

Wireless frequency hopping systems offer the advantage of avoiding other interfering signals and avoiding collisions. In addition, there are regulatory advantages given to systems that do not continuously transmit at a frequency. Channel skip transmitters change frequencies after a period of continuous transmission or when interference is encountered. These systems can have a higher transmission power and relaxed limitations in spurious band. FCC regulations limit the transmission time on a channel to 400 milliseconds (averaged in 10-20 seconds depending on the channel bandwidth) before the transmitter needs to change frequency. There is a minimum frequency stage when changing channels to resume transmission. If there are 25 to 49 frequency channels, the regulations allow the effective irradiated power of 24 dBm, the spurious ones must be -20 dBc and the harmonics must be -1.2 dBc. With 50 or more channels, the regulations allow for an effective radiated power of up to 30 dBm. In one embodiment, the detector unit 102, the repeater unit 110 and the base unit 112 communicate using FHSS where the frequency hopping of the detector unit 102, the repeater unit 110 and the base unit 112 do not they are synchronized, such that at any given time, the detector unit 102 and the repeater unit 110 are in different channels. In such a system, the base unit 112 communicates with the detector unit 102 using the hopping frequencies synchronized to the repeater unit 110 in place of the detector unit 102. The repeater unit 110 then sends the data to the detector unit using frequencies of hop synchronized to the detector unit 102. Such a system extensively avoids collisions between the transmissions by the base unit 112 and the repeater unit 110. In one embodiment, all the detector units 102-106 use FHSS and the detector units 102-106 are not synchronized. Thus, at any given time, it is unlikely that any two or more of the detector units 102-106 will transmit on the same frequency. In this way, collisions are avoided widely. In one embodiment, the collisions are not detected but are tolerated by the system 100. If a collision occurs, the data lost due to the collision is retransmitted effectively the next time the detector units transmit detector data. When the detector units 102-106 and the repeater units 110-111 operate in an asynchronous mode, then a second collision is highly unlikely because the units causing the collisions have jumped to different channels. In one embodiment, detector units 102-106, repeater units 110-111 and base unit 112 use the same jump ratio. In one modality, the detector units 102-106, repeater units 110-111 and the base unit 112 use the same pseudo-random algorithm to control the channel hop, but with different starting seeding. In one embodiment, the starting seed or seed starting for the hopping algorithm is calculated from the ID of the detector units 102-106, repeater units 110-111 or the base unit 112. In an alternative mode , the base unit communicates with the detector unit 102 when sending a communication packet destined to the repeater unit 110, wherein the packet sent to the repeater unit 110 includes the address of the detector unit 102. The Repeater unit 102 extracts the address of the detector unit 102 from the packet and creates and transmits a packet destined to the detector unit 102. In one embodiment, the repeater unit 110 is configured to provide bi-directional communication between its detectors and the base unit 112. In one embodiment, the repeater 110 is configured to receive instructions from the base unit 110. Thus, for example, the base unit 112 can instruct the repeater to: send commands to one or more detectors; move to a standby mode; that "wake up"; that reports the status of the battery; to change the interval of awakening; to run self-diagnostics and report results; etc.

Base unit 112 is configured to receive measured detector data from a number of detector units either directly or through repeaters 110-111. Base unit 112 also sends commands to repeater units 110-111 and / or detector units 102-106. In one embodiment, the base unit 112 communicates with a computer 113 without a disk running from a CD-ROM. When the base unit 112 receives data from the detector unit 102-106 which indicates that there may be an emergency condition (eg, a fire or excessive smoke, temperature, water, etc.) the computer 113 will attempt to notify the responsible party 120. In one embodiment, computer 113 maintains a health database, energy status (e.g., battery charge) and current operating status of all detector units 102-106 and units of repeater 110-111. In one embodiment, the computer 113 automatically performs routine maintenance by sending commands to each detector unit 102-106 to execute a self-diagnosis and report the results. The .113 computer collects and records such diagnostic results. In one embodiment, the computer 113 sends instructions to each of the detector units 102-106 telling the detector how much to wait between "wake-up" intervals. In one embodiment, the computer 113 schedules different wake-up intervals to different detector units 102-106 based on the health of the detector unit, energy status, location, etc. In one embodiment, the computer 113 schedules different wake-up intervals to different detector units 102-106 based on the type of data and urgency of the data collected by the detector unit (e.g., detector units having smoke detectors and / or temperature produce data that must be verified relatively more frequently than detector units that have humidity or moisture detectors). In one embodiment, the base unit sends instructions to repeaters to channel the detector information around a failed repeater. In one embodiment, computer 113 produces an indication that tells maintenance personnel which detector units 102-106 need repair or maintenance. In one embodiment, the computer 113 maintains a list that shows the status and / or location of each detector according to the ID of each detector. In one embodiment, the detector units 102-106 and / or the repeater units 110-111 measure the signal strength of the received wireless signals (e.g., the detector unit 102 measures the signal strength of the received signals of the repeater unit 110, the repeater unit 110 measures the signal strength received from the detector unit 102 and / or the base unit 112). Detector units 102-106 and / or repeater units 110-111 report such measurement of signal strength back to the computer 113. The computer 113 evaluates the signal strength measurements to inquire into the health and robustness of the detector system 100. In one embodiment, the computer 113 uses the signal strength information for re-channeling the wireless communications traffic in the detector system 100. Thus, for example, if the repeater unit 110 goes offline or has difficulty communicating with the detector unit 102, the computer 113 can send instructions to the repeater unit 111 for adding the ID of the detector unit 102 to the database of the repeater unit 111 (and similarly, sending instructions to the repeater unit 110 to remove the ID of the detector unit 102), thereby channeling the traffic for the detector unit 102 by means of the router unit 111 in place of the router unit 110. Figure 2 is a block diagram of the unit detector 102. In the detector unit 102, one or more detectors 201 and a transceiver 203 are provided to a controller 202. The controller 202 commonly provides power, data and control information to the detector (s) 201 and the transceiver 203. A power source 206 is provided to controller 202. An optional tamper detector 205 is also provided to controller 202. A reset device (e.g., a switch) 208 is provided to the controller 202. In one embodiment, an optional audio output device 209 is provided. In one embodiment, the detector 201 is configured as a plug module that can be relatively easily replaced. In one embodiment, the transceiver 203 is based on a TRF transceiver chip 6901 from Texas Instruments, Inc. In one embodiment, the controller 202 is a conventional programmable microcontroller. In one embodiment, the controller 202 is based on an array of field programmable gates (FPGA), such as, for example, provided by Xilinx Corp. In one embodiment, the detector 201 includes an optoelectric smoke detector with a digital camera. smoke. In one embodiment, the detector 201 includes a thermistor. In one embodiment, the detector 201 includes a humidity detector. In one embodiment, the detector 201 includes a detector, such as, for example, a water level detector, a water temperature detector, a carbon monoxide detector, a humidity detector, a water flow detector, a natural gas detector, a propane detector, etc. The controller 202 receives detector data from the detector (s) 201. Some detectors 201 produce digital data. However, for many types of detectors 201, the detector data is analogous data. The analog detector data are converted to digital format by the controller 202. In one embodiment, the controller evaluates the data received from the detector (s) 201 and determines whether the data is to be transmitted to the base unit 112. The detector unit 102 generally saves energy by not transmitting Data that falls within a normal range. In one embodiment, the controller 202 evaluates the detector data by comparing the value of the data with a threshold value (e.g., a high threshold, a low threshold or a high-low threshold). If the data is outside the threshold (for example, above a high threshold, below a low threshold, outside an internal interval threshold or within an external interval threshold), then the data is considered anomalous and are transmitted to the base unit 112. In one embodiment, the data threshold is programmed into the controller 202. In one embodiment, the data threshold is programmed by the base unit 112 when sending instructions to the controller 202. In a mode , the controller 202 obtains data from the detector and transmits the data when it is commanded by the computer 113. In one embodiment, the tamper detector 205 is configured as a switch that detects the removal or tampering with the detector unit 102. The Figure 3 is a block diagram of the repeater unit 110. In the repeater unit 110, a first transceiver 302 and a second transceiver 304 are provided. to a controller 303. The controller 303 commonly provides power, data and control information to the transceivers 302. 304. A power source 306 is provided to the controller 303. An optional tamper detector (not shown) is also provided to the controller 303. When data from the detector is relayed to the base unit 112, the controller 303 receives data from the first transceiver 302 and provides the data to the second transceiver 304. When instructions from the base unit 112 are relieved to a detector unit, the controller 303 receives data from the second transceiver 304 and provides the data to the first transceiver 302. In one embodiment, the controller 303 saves energy by turning off the transceivers 302, 304 during periods when the 303 controller is not waiting for data. The controller 303 also monitors the power source 306 and provides status information, such as, for example, self-diagnostic information and / or information about the health of the power source 306, to the base unit 112. In one mode, the controller 303 sends status information to the base unit 112 at regular intervals. In one embodiment, the controller 303 sends status information to the base unit 112 when it is required by the base unit 112. In one embodiment, the controller 303 sends status information to the base unit 112 when an error condition is detected. fails (for example, low battery).

In one embodiment, the controller 303 includes a table or list of identification codes for wireless detector units 102. The repeater 110 sends packets received from or sent to the detector units 102 in the list. In one embodiment, the repeater 110 receives inputs for the list of detector units of the computer 113. In one embodiment, the controller 303 determines when a transmission is expected from the detector units 102 in the table of detector units and places the repeater 110 (e.g., transceivers 302, 304) in a low power consumption mode when transmissions are not expected from the transceivers in the list. In one embodiment, the controller 303 recalculates the times for the operation with low power consumption when a command to change the reporting interval is sent to one of the detector units 102 in the list (table) of detector units or when A new detector unit is added to the list (table) of detector units. Figure 4 is a block diagram of the base unit 112. In the base unit 112, a transceiver 402 and a computer interface 404 are provided to a controller 403. The controller 403 commonly provides data and control information to the controllers. 402 transceivers and the interface. The interface 404 is provided to a port on the monitoring computer 113. The interface 404 may be a standard computer data interface, such as by example Ethernet, wireless Ethernet, security server port, universal serial main (USB) distribution line port, bluetooth, etc. Figure 5 shows an embodiment of a communication packet 500 used by the detector units, repeater units and the base unit. The packet 500 includes a preamble portion 501, an address portion (or ID) 502, a data load portion 503 and an integrity portion 504. In one embodiment, the integrity portion 504 includes a checksum. In one embodiment, detector units 102-106, repeater units 110-111 and base unit 112 communicate using packets such as packet 500. In one embodiment, packets 500 are transmitted using FHSS. In one embodiment, packet data traveling between the detector unit 102, the repeater unit 111 and the base unit 112 are encrypted. In one embodiment, the data packets traveling between the detector unit 102, the repeater unit 111 and the base unit 112 are encrypted and an authentication code is provided in the data packet such that the detector unit 102, the repeater unit and / or the base unit 112 can verify the authenticity of the packet. In one embodiment, the address portion 502 includes a first code and a second code. In one modality, the Repeater 111 examines only the first code to determine if the packet should be sent. Thus, for example, the first code can be interpreted as a building code (or building complex) and the second code interpreted as a subcode (for example, an apartment code, an area code, etc.). A repeater that uses the first code to send, thus, sends packets that have a first specified code (for example, corresponding to the building of the repeater or building complex). This alleviates the need to program a list of detector 102 units to a repeater, since a group of detectors in a building will commonly all have the same first code but different second codes. A repeater configured in this way, only needs to know the first code to send packets for any repeater in the building or building complex. However, this raises the possibility that two repeaters in the same building could try to send packets for the same detector unit 102. In one embodiment, each repeater waits for a programmed delay period before sending a packet. Thus reducing the probability of packet collisions in the base unit (in the case of unit packets of detector unit to base unit) and reducing the probability of packet collisions in the detector unit (in the case of packets of base unit to detector unit). In a modality, a delay period is programmed in each repeater. In one mode, the delay periods are pre-programmed in the repeater units in the factory or during installation. In one embodiment, a delay period is programmed in each repeater by the base unit 112. In one embodiment, a repeater randomly chooses a delay period. In one embodiment, a repeater randomly chooses a delay period for each packet sent. In one mode, the first code is at least 6 digits. In one mode, the second code is at least 5 digits. In one embodiment, the first code and the second code are programmed into each detector unit in the factory. In one embodiment, the first code and the second code are programmed when the detector unit is installed. In one embodiment, the base unit 112 may re-program the first code and / or the second code in a detector unit. In one embodiment, collisions are further avoided by configuring each repeater unit 111 to begin transmission on a channel. different frequency. Thus, if two repeaters attempt to start the transmission at the same time, the repeaters will not interfere with each other because the transmissions will start on different channels (frequencies). Figure 6 is a flow diagram showing an operation mode of the detector unit 102 where relatively continuous monitoring is provided. In Figure 6, an ignition block 601 is followed by an initialization block 602. After initialization, the detector unit 102 checks for a defective condition (e.g., activation of the tamper detector, low battery, rnal fault, etc.) in a block 603. A decision block 604 verifies the failure status. If a fault has occurred, then the process proceeds to a block 605 where the fault information is transmitted to the repeater 110 (after which, the process proceeds to a block 612); otherwise, the process advances to a block 606. In block 606, the detector unit 102 takes a read from the detector of the detector (s) 201. The detector data is subsequently evaluated in a block 607. If the detector data is abnormal, then the process advances to a transmission block 609 where the detector data is transmitted to the repeater 110 (after which, the process advances to a block 612); otherwise, the process advances to a 610 time-out decision block. If the. out time period has not elapsed, then the process returns to the fault verification block 603; otherwise, the process advances to a transmission status block 611 where the normal status information is transmitted to the repeater 110. In one embodiment, the normal status information transmitted is analogous to a simple "whistle" indicating that the unit of Detector 102 is functioning normally. After block 611, the process proceeds to a block 612 where the detector unit 102 momentarily hears instructions from the monitor computer 113. If an instruction is received, then the detector unit 102 performs the instructions, otherwise the process returns to status verification block 603. In one embodiment, transceiver 203 is normally turned off. The controller 202 turns on the transceiver 203 during the execution of the blocks 605, 609, 611 and 612. The monitoring computer 113 may send instructions to the detector unit 102 to change the parameters used to evaluate the data used in block 607, the listening period used in block 612, etc. Relatively continuous monitoring, as shown in Figure 6, is appropriate for detector units that detect relatively high priority data (eg, smoke, fire, carbon monoxide, flammable gas, etc.). In contrast, periodic monitoring can be used for detectors that detect relatively lower priority data (for example, humidity, humidity, water use, etc.). Figure 7 is a flow diagram showing an operation mode of the detector unit 102 where periodic monitoring is provided. In Figure 7, an ignition block 701 is followed by an initialization block 702. After initialization, the detector unit 102 enters a mode of sleep of low energy consumption. If a fault occurs during sleep mode (for example, the tamper detector is activated), then the process enters an awakening block 704 followed by a transmission failure block 705. If no failure occurs during the sleeping period, then when the specified sleeping period has expired, the process enters a block 706 where the detector unit 102 takes a detector reading from the detector (s) 201. The detector data is sent subsequent to the monitoring computer 113 in a report block 707. After the report, the detector unit 102 enters a listening block 708 where the detector unit 102 listens for a relatively short period of time from the monitoring computer 708 If an instruction is received, then the detector unit 102 performs the instructions, otherwise, the process returns to the sleep block 703. In one embodiment, the detector 201 and the nsceptor 203 are normally turned off. The controller 202 turns on the detector 201 during the execution of the block 706. The controller 2.02 turns on the transceiver during the execution of the blocks 705, 707 and 708. The monitoring computer 113 can send instructions to the detector unit 102 to change the period of sleep used in block 703, the listening period used in block 708, etc.

In one embodiment, the detector unit transmits detector data until a handshake acknowledgment or acknowledgment is received. Thus, instead of sleeping or no instructions or acknowledgments are received after transmission (for example, after decision block 613 or 709) the detector unit 102 retransmits its data and awaits an acknowledgment. The detector unit 102 continues to transmit data and awaits an acknowledgment until an acknowledgment is received. In one embodiment, the detector unit accepts an acknowledgment from a repeater unit 111 and then it becomes the responsibility of the repeater unit 111 to ensure that the data is sent to the base unit "112. In one embodiment, the unit Repeater 111 does not generate the acknowledgment, but rather sends an acknowledgment from the base unit 112 to the detector unit 102. The bidirectional communication capability of the detector unit 102 provides the capability for the base unit 112 to control the operation of the detector unit 102 and also provides the robust handshake communication capability between the detector unit 102 and the base unit 112. Without regard to the standard operating mode of the detector unit 102 (e.g., using the flowcharts of FIGS. 6, 7 or other modes) in one embodiment, the monitoring computer 113 can instruct the detector unit 102 to operate in a relatively continuous mode in where the detector repeatedly takes readings from the detector and transmits the readings to the monitoring computer 113. Such mode may be used, for example when the detector unit 102 (or a nearby detector unit) has detected a potentially dangerous condition (e.g. , smoke, rapid temperature rise, etc.) Figure 8 shows a detector system 800 wherein one or more relatively low cost detector units 802-804 provide detector readings and / or status information to a monitor unit of area 810 communicating with the base unit 112 or with a repeater unit 110. The detector units 802-804 may be configured as modes of the detector unit 102 and / or as modes of the detector unit. humidity 1010. In one embodiment, the detector units 802 and 804 are configured for unidirectional communication to transmit information to the 810 area monitor. The humed detector unit ad 1010 may be configured as a mode of the detector unit 102. The humidity detector unit 1010 may be configured as shown in Figure 2 with a transceiver 203 that both can transmit and receive the transceiver 203 may be configured for a transmission only operation. In one embodiment, the area monitor 810 is configured similarly to the repeater unit 110.

In one embodiment, the area monitor 810 is configured to provide bi-directional communication with one or more detector units 102. In one embodiment, the area monitor 810 is configured to receive unidirectional communication from one or more detector units 802- 804 In one embodiment, the detector unit 802 sends a message to the area monitor 810 whenever an abnormal detector reading is detected (e.g., water is detected, smoke is detected, etc.). In one embodiment, the detector unit 802 sends a stream of messages spaced at desired intervals (eg, every few seconds) to the area monitor 810 'whenever an abnormal detector reading is detected. In one embodiment, the detector unit 802 sends a status report (eg, system health, battery power status, etc.) to the 810 area monitor at a desired regular interval (e.g., hourly, each day, every few hours, etc.). The area monitor sends messages from the detector system 800 to the monitoring system 113. In one embodiment, the monitoring system 113 and / or area monitor 810 can determine that the detector unit 802 has failed based on the status information. received from the detector unit 802 and / or based on lack of status information from the detector unit 802. The area monitor 810 expects to receive periodic status updates from the detector 802, thus, the area monitor (and the monitor central 113) may assume that the detector unit 802 has failed or has been removed if such regular status updates are not received. In one embodiment, the detector unit 802 sends real detector data to the area monitor 810 and the area monitor sends such data to the central monitoring system 113 for analysis. Thus, unlike simple alarm systems that simply provide on / off type detectors, detector units 802-804 and 102-106 provide real detector readings that can be analyzed by the monitoring system to determine or estimate the severity of a problem (for example, the amount of smoke, the amount of water, the rate or rate of increase in smoke, water, temperature, etc.). In one embodiment, the monitoring system 113 maintains the data received from the detector units 802-804 and 102-106 to aid in the maintenance of the detector system. In one mode, maintenance personnel are expected to test each detector unit on a regular basis (eg, semi-annually, annually, bi-annually, monthly, etc.) to ensure that the detector is working. Thus, for example, in one embodiment, maintenance personnel are expected to expose each moisture detector 1010 to water to test the operation of the detector and ensure that a "detected water" message is transmitted to monitoring system 113. Similarly, , the maintenance staff is You can give the task with exposing each smoke detector to smoke. Thus, if the database of the monitoring system shows that a particular detector unit has not reported a detector event (eg, water detected, smoke detected, etc.) in a period corresponding to the maintenance interval, the system of monitoring 113 may report that the detector unit has failed or that the detector unit has not been tested according to the testing schedule. In this way, the supervisory personnel can monitor the actions of the maintenance personnel when examining the database maintained by the system 113 to make sure that each detector has been activated and tested "according to the desired maintenance schedule. The database maintained by the monitoring system 113 can also be used to provide graphs of detector activations and to indicate possible problem areas in a building or structure. Thus, for example, if a particular water detector has been activated on a regular basis, the monitoring system 113 may indicate that there is a potential problem in the area monitored by the detector and thus, alert the maintenance or supervisory personnel. Excess moisture in a structure can cause severe problems such as putrefaction, growth of molds, mildew and fungi, etc. (hereinafter in the present generically referred to as fungi). In one embodiment, the detector 201 includes a humidity detector. In one embodiment, the monitoring system 100 detects favorable conditions for the growth of fungi (for example, mold, mildew, fungi, etc.) by measuring the moisture content of the construction material in one or more sites of a building. In one embodiment, the detector system is used to detect moisture in construction materials, such as, for example, drywall, wood, concrete, plaster, stucco, etc. In one embodiment, the detector unit 102 includes a humidity detector and one or more humidity probes coupled to the construction material. The humidity probes are provided to the construction material to allow the detector unit 102 to detect and / or measure the presence of moisture in the material. The moisture of the construction material is generally the result of a leak (eg, plumbing leakage, roof leakage, stucco leakage, etc.), groundwater invasion, trapped moisture or condensation. In one embodiment, the severity of a humidity problem is investigated by the detector unit 102 (or the monitoring computer 113) by measuring (or estimating) the rate of elevation at the humidity level and / or by measuring (or estimating) ) the size of a wet area and / or when measuring (or estimating) the amount of moisture in the construction material. In one embodiment, the monitoring computer 113 compares moisture measurements taken from different units of detector in order to detect areas that have excess moisture. Thus, for example, the monitoring computer 113 may compare the humidity readings of a first detector unit 102 in a first attic area with a humidity reading of a second detector unit 102 in a second area. For example, the monitoring computer can take humidity readings from a number of attic areas to establish a reference humidity reading and then compare the specific humidity readings of various detector units to determine if one or more of the units are measuring excess moisture. The monitoring computer 113 would indicate areas of excess moisture - for further investigation by maintenance personnel. In one embodiment, the monitoring computer 113 maintains a history of moisture readings for various detector units and flag areas that show an unexpected increase in humidity for investigation by maintenance personnel. The monitoring station 113 collects moisture readings from the first humidity detector and the second humidity detector and indicates favorable conditions for fungal growth by comparing the first moisture data and the second humidity data. In one embodiment, the monitoring station 113 establishes a reference humidity by comparing moisture readings of a plurality of moisture detectors and indicates fungal growth conditions possible in the first building area when at least a portion of the first moisture data exceeds the reference humidity by a specified amount. In one embodiment, the monitoring station 113 establishes a reference humidity by comparing the humidity readings of a plurality of moisture detectors and indicates possible fungal growth conditions in the first area of the building when at least a portion of the first moisture data exceeds the reference humidity by a specified percentage. In one embodiment, the monitoring station 113 establishes a reference humidity history by comparing the moisture readings of a plurality. of moisture detectors and indicates possible fungal growth conditions in the first area of the building when at least a portion of the first moisture data exceeds the reference moisture history by a specified amount in a specified period of time. In one embodiment, the monitoring station 113 establishes a reference humidity history by comparing the moisture readings of a plurality of moisture detectors over a period of time and indicates possible possible fungal growth conditions in the first area of the building when at least a portion of the first moisture data exceeds the reference humidity by a specified percentage of a specified period of time.

In one embodiment, the detector unit 102 transmits moisture data when it determines that the humidity data fails a threshold test. In one embodiment, the humidity threshold for the threshold test is provided to the detector unit 102 by the monitoring station 113. In one embodiment, the humidity threshold for the threshold test is calculated by the monitoring station from of a reference humidity set at the monitoring station. In one embodiment, the reference humidity is calculated at least in part as an average of moisture readings of a number of moisture detectors. In one embodiment, the reference humidity is calculated at least in part as an average in time of moisture readings of a number of humidity detectors. In one embodiment, the reference humidity is calculated at least in part as an average in the humidity readings time of a humidity detector. In one embodiment, the reference humidity is calculated at least in part as the smallest of a maximum moisture reading of an average of a number of moisture readings. In one embodiment, the detector unit 102 reports humidity readings in response to an interrogation by the monitoring station 113. In one embodiment, the detector unit 102 reports moisture readings at regular intervals. In one embodiment, a moisture range is provided to the detector unit 102 by the monitoring station 113. In one embodiment, the calculation of the conditions for fungal growth is to compare the humidity readings of one or more humidity detectors a with the reference humidity (or reference ). In one embodiment, the comparison is based on comparing moisture readings with a percentage (for example, commonly a percentage greater than 100%) of the reference value. In one embodiment, the comparison is based on comparing moisture readings with a specified delta value above the reference humidity. In one modality, the calculation of the probability of conditions for fungal growth is based on a time history of moisture reading, so that the longer favorable conditions exist, the greater the probability of fungal growth. In one embodiment, relatively high humidity readings over a period of time indicate a higher probability of fungal growth than relatively high humidity readings for short periods of time. In one embodiment, a relatively sudden increase in humidity compared to a baseline or reference humidity is reported by the monitoring station 113 as a possibility of water leakage. If the relatively high humidity reading continues with the passage of time then the relatively high humidity is reported by the monitoring 113 as possibly being a water leak and / or a likely area of fungal growth or water damage. Temperatures that are relatively more favorable to fungal growth increase the likelihood of fungal growth. In one embodiment, temperature measurements of the building areas are also used in fungal growth probability calculations. In one embodiment, a threshold value for fungal growth probability is calculated at least in part as a function of temperature, such that temperatures relatively more favorable to fungal growth result in a relatively lower threshold than relatively less favorable temperatures for fungal growth. In one embodiment, the calculation of fungal growth probability depends at least in part on the temperature, such that temperatures relatively more favorable to fungal growth indicate a relatively higher probability of fungal growth than relatively high temperatures. less favorable for the growth of fungi. Thus, in one embodiment, a maximum moisture and / or minimum threshold above a reference humidity is relatively lower for the temperature more favorable to fungal growth than the maximum and / or minimum humidity threshold above a humidity of reference for temperatures relatively less favorable to fungal growth.

In one embodiment, a water flow detector is provided to the detector unit 102. The detector unit 102 obtains water flow data from the water flow detector and provides the water flow data to the monitoring computer 113. Then the monitoring computer 113 can calculate the use of water. Additionally, the monitoring computer can observe moisture for example by looking at the flow of water when there should be little or no flow. So, for example, if the monitoring computer detects water use throughout the night, the monitoring compound can raise an alert indicating that a possible water leak has occurred. In one embodiment, a rain detector is provided to the monitoring computer 113 and one or more water shutoff valves are provided to the monitoring computer 113 to allow the monitoring computer 113 to shut off the water supply to the monitoring computer. one or more areas of a building. If one or more moisture detectors report a relatively rapid rise in humidity levels when it is not raining, then the monitoring computer can shut off the water supply to the affected area of the buildings (assuming that moisture comes from a leak). of plumbing). Figure 9 shows a humidity detector unit 902 that includes an impedance detector 901 provided to an impedance probe 903. The detector unit 902 is a mode of the detector units 102 or 802 where the detector 201 is configured as an impedance detector 901. Impedance detector 901 measures the impedance of probe 903. In one embodiment, impedance detector 901 measures the resistance of probe 903. In one embodiment, impedance detector 901 measures an AC resistance of the probe 903. In one embodiment, the impedance detector 901 measures an AC reactance of the probe 903. The impedance detector 901 receives a control input from the controller 202 and provides output data to the controller 202 The impedance of most building materials varies as the moisture content of the building material changes. Commonly, most construction materials (eg, concrete, drywall, gypsum, wood, etc.) have a relatively high impedance when they are dry and the impedance decreases as the humidity level increases. Thus, a convenient way to measure the moisture content of many construction materials is to measure the impedance of a probe provided to the construction material. If only the DC resistance is desired, then the probe is provided in direct electrical contact with the construction material. If the AC impedance is desired, then the probe can be provided in direct electrical contact with the construction material or the probe can be capacitively coupled to the construction material by means of a dielectric. The probe is commonly provided to the construction material when the material is dry. The impedance detector measures the impedance of the probe at specified intervals. In one embodiment, a change in impedance is reported by the detector unit 902 to the monitoring system 113 as a possible increase in moisture content. In one embodiment, the measured impedance data, the electrical characteristics of the probe and the type of construction material to which the probe is attached are provided to the monitoring system 113 to allow the monitoring system 113 to calculate a content value of humidity of the impedance data. In one embodiment, a threshold value (as described above) is provided to the detector unit 902 and the detector unit reports impedance data when the measured impedance values cross the threshold. In one embodiment, the threshold is a higher threshold and the impedance data is reported when the measured impedance values exceed the threshold. In one embodiment, the threshold is a lower threshold and the impedance data is reported when the measured impedance values fall below the threshold. In one mode, the threshold is configured as an internal interval. In one mode, the threshold is configured as a external interval. In one embodiment, the threshold is provided by the magnitude of the impedance. In one embodiment, a threshold is provided for the real part of the impedance (for example, resistance). In one embodiment, a threshold is provided for the imaginary part of the impedance (for example, the reactance). For example, drywall (gypsum) and / or gypsum have a relatively high impedance when dry and the impedance drops as the moisture content increases. In one embodiment, the detector unit 902 reports impedance data to the monitoring system 113 provided that the impedance measured by the impedance detector 1002 drops by a specified amount. In one embodiment, the detector unit 902 reports impedance data to the monitoring system 113 provided that the impedance measured by the impedance detector 1002 drops by a specified amount, wherein the specified amount is specified according to the type of material that probe 1001 is attached. In one embodiment, the detector unit 902 reports impedance data to the monitoring system 113 at specified intervals and provided that the impedance measured by the impedance detector 1002 falls by a specified amount. The monitoring system 113 establishes a "dry" impedance value by recording the highest impedance reported by the detector unit 902.

Figure 10 shows an impedance detector 1002 (corresponding to the impedance detector 902 of Figure 9) provided with an impedance probe 1001 configured as a pair of conductive bands 1008, 1009. Optionally, in one embodiment, two or more needles 1010 , 1011 are provided to the conductive strips 1008, 1009. In one embodiment, when the probe 1001 is installed, the needles 1010, 1011 are inserted into the construction material in order to provide better electrical contact with the construction material. The needles 1010, 1011 can be configured as fine needles attached to the bands 1008, 1009, nails and / or staples propelled through the bands 1008, 1009, etc. In response to the control input of the controller 202, the impedance detector measures the impedance of the probe 1001. In one embodiment, the expected impedance values for wet and wet conditions are determined from the type of construction material and the characteristics of the 1001 probe (e.g., length, number of needles, etc.). Figure 11 is a schematic of an impedance detector 1002 configured to measure impedance when using a voltage source 1904 and a current detector 1105. The voltage source provides a voltage between the conductors 1008, 1009 and the current detector 1105 measured then the current through the probe. Then the impedance is calculated by using Ohm's law. In one modality, the controller 202 controls the voltage produced by voltage source 1104. In one embodiment, voltage source 1104 is a DC source. In one embodiment, the voltage source 1104 is an AC source. In one embodiment, the controller 202 controls the frequency and / or phase of the voltage source 1104. In one embodiment, the current detector 1105 measures the magnitude of the current through the probe 1001. In one embodiment, the detector of 1105 current measures the magnitude and phase of the current through the probe 1001. FIG. 12 is a schematic of an impedance detector 1002 configured to measure the impedance when using a current source 1204 and a voltage detector 1205. The source Current 1204 provides a current through conductors 1008, 1009 and voltage detector 1205 then measures the voltage across probe 1001. Then the impedance is calculated by using Ohm's law. In one embodiment, the controller 202 controls the current produced by the current source 1204. In one embodiment, the current source 1204 is a DC source. In one embodiment, the current source 1204 is an AC current. In one embodiment, the controller 202 controls the frequency and / or phase of the current source 1204. In one embodiment, the voltage detector 1205 measures the magnitude of the current through the voltage across the probe 1001. In a mode , the current detector 1205 measures the magnitude and phase of the voltage across the current by means of the probe 1001. FIG. 13 is a schematic of an impedance detector 1002 configured to measure the impedance using an impedance bridge including impedances 1301-1303 in three legs of the bridge and the probe is provided to the fourth leg of the bridge. The control input is provided to a voltage source that drives the bridge and to a module 1310 that measures the impedance across the bridge. In one embodiment, the impedance 1303 is fixed. In one embodiment, the impedance 1303 is varied by the control module 1310. In one embodiment, the impedance 1303 is fixed. In a. • mode, the impedance 1303 is varied by the control module 1310 in response to the control input. Then the impedance through the probe 1001 is calculated as is known in the art by using the known impedances 1301-1303 and the voltage across the bridge. Figure 14 shows a humidity detector including a time / frequency domain impedance detector 1402 provided to the impedance probe 1001. In one embodiment, the time-frequency domain impedance detector 1402 uses domain measurement techniques. of time and / or frequency domain for measuring the impedance properties along the impedance probe 1001. In one embodiment, the time domain impedance detector - frequency 1402 uses time domain measurement techniques to measure the impedance properties along the impedance probe 1001 by sending a relatively short pulse of energy along the impedance probe 1001 and measuring the reflections of the energy pulse . In one embodiment, the time-frequency domain impedance detector 1402 is configured as a time-domain reflectometer. In one embodiment, the time-frequency domain impedance detector 1402 measures the impedance of the impedance probe 1001 at various frequencies and then uses Fourier transform techniques to transform the measurements from the frequency domain to the time domain. In one embodiment, the domain-time data is used to identify regions along the impedance probe 1001 that are relatively more humid. Figure 15 is a graph showing an exemplary output of the time-frequency domain impedance detector 1402 when a relatively small wet area 1502 is detected. When the impedance probe 1001 is provided to a construction material having a smaller impedance when wet, the impedance of the impedance probe 1001 is smaller in the region 1502 and thus the impedance probe 1001 produces a reflection corresponding to the 1502 region? example way, figure 15 includes a graph 1530 showing the reduced resistance corresponding to region 1502. Figure 16 is a graph showing an exemplary output of the time-frequency domain impedance detector 1402 when a relatively larger wet area 1602 is detected. When the impedance probe 1001 is provided with a construction material having a smaller impedance when wet, the impedance of the impedance probe 1001 is smaller in the region 1502 and thus, the impedance probe 1001 produces a corresponding reflection to the region 1001.? As an example, Figure 16 includes a graph 1630 showing the reduced resistance corresponding to region 1502. The comparison of graphs 1530 and 1630 shows that the time / frequency domain impedance detector 1402 can be used to provide a indication of the location, size and severity of the wet area. The location of the wet area is indicated by the location of the wet area along the impedance zone 1001 (where the time can be converted remotely along the probe according to the propagation velocity of an electrical signal to along the probe). The size of the wet area is indicated by the size of the lowest impedance region along the impedance probe 1001. The amount of moisture in the construction material is at different points along the impedance probe 1001 it is calculated from the impedance measured at several points along the impedance probe 1001 and the knowledge of the properties of the construction material provided to the impedance probe. In one embodiment, the time / frequency impedance detector 1402 is configured in accordance with the schemes shown in Figures 11-13 wherein the respective sources (voltage and / or current sources) are configured as AC sources (Alternating Current). ) or sources that produce a time domain waveform and / or frequency domain. Fig. 17 is a schematic of a mode of the time-frequency domain impedance detector 1402 configured as a pulse reflectometer having a pulse generator 1705, a diplexer switch 1703 and a sample taker 1704. A synchronization generator 1701 it is controlled by the control input and provides control outputs to the pulse generator 1705, the diplexer switch 1703 and the sample taker 1704. The diplexer switch 1703 is commonly an electronic switch configured using solid state electronic elements for high speed and high Conflability. In a transmission mode, the timing generator or synchronization generator places the diplexer switch 1703 in a "transmit position". (as shown) and instructs the pulse generator 1705 to provide a pulse of relatively short duration (e.g., pulse, chirps, frequency pulses, etc.) to the diplexer switch 1703. The diplexer switch 1703 provides the impulse to the probe of impedance 1001. Then the synchronization generator switches the diplexer switch 1703 to a "reception position" where, when the return pulse (or pulses) of the impedance probe 1001 are provided to the sampler 1704. The Samples 1704 provides sampled data from the impedance probe 1001 to the controller 202. In one. In this embodiment, the humidity detector unit 902 is configured as an adjustable threshold humidity detector that calculates a threshold level. In one embodiment, the threshold is calculated as an average of a number of detector measurements. In one modality, the average value is an average of relatively long term. In one embodiment, the average is a time-weighted average where recent detector readings in the averaging process are weighted differently than the less recent detector readings. In one embodiment, the most recent detector readings are weighted relatively more strongly than the less recent detector readings. In one embodiment, the most recent detector readings are weighted relatively more strongly than the detector readings less recent The average is used to establish the threshold level. When the humidity detector readings rise above the threshold level, the humidity detector indicates a notification condition. In one embodiment, the humidity detector indicates a notification condition when the reading of the humidity detector is raised above the threshold value for a specified period of time. In one embodiment, the humidity detector indicates a notification condition when a statistical number of detector readings (e.g., 3 of 2, 5 of 3, 10 of 7, etc.) are above the threshold level. In one embodiment, the humidity detector unit 902 indicates various levels of alarm (eg, warning, alert, alarm) based on how far above the threshold the moisture detector reading has been raised. In one embodiment, the humidity detector unit 902 calculates the notification level according to how far the moisture detector readings have risen above the threshold and how quickly the humidity detector readings have risen or how much. time the humidity reading has been high. A relatively rapid lifting speed can be indicative of a relatively large leakage and / or a relatively large volume of water that could lead to water damage. An area that has been wet (still slightly damp) for a period of time may be indicative of damage long-term due to mold, fungus, putrefaction, etc. For example, for purposes of explanation, the reading level and the elevation speed can be quantified as low, medium and high. The combination of detector reading level and elevation speed can then be displayed as a table, as shown in Table 1. Tables 1 and 2 provide examples and are provided by way of explanation, not limitation.

Table 1 Table 2 Detector reading level (compared to the threshold) That of ordinary skill in the art will recognize that the notification level N can be expressed as an equation N = f (l, v, r, t), where 1 is the threshold level, v is the reading of the humidity detector , r is the speed of elevation and t is the duration of time of the reading of the humidity detector. In embodiments where the size of the wetted area can be measured (as described, for example, in relation to Figures 13-17), then the size of the wetted area can also be included in the above equation, and / or in the previous tables. In one embodiment, the moisture detector reading v and / or the lifting speed r are filtered in low pass in order to reduce the effects of noise in the moisture detector readings. In one embodiment, the threshold is calculated by low-pass filtration of the moisture detector readings v using a filter with a relatively low cutoff frequency. A filter with a relatively low cutoff frequency produces a relatively long-term averaging effect. In one embodiment, separate thresholds are calculated for the humidity detector reading and for the elevation speed. In one embodiment, a calibration processing period is provided when the humidity detector unit 902 is turned off. During the calibration period, the humidity detector data values of the humidity detector 201 are used to calculate the threshold value, but the humidity detector does not calculate notifications, warnings, alarms, etc., until the period of calibration is complete. In one embodiment, the humidity detector unit 902 uses a fixed threshold value (eg, pre-programmed) to calculate notifications, warnings and alarms during the calibration period and then uses the adjustable threshold value once it has finished the calibration period. In one embodiment, the humidity detector unit 902 determines that a failure of the humidity detector 201 has occurred when the adjustable threshold value exceeds a maximum adjustable threshold value. In one embodiment, the humidity detector unit 902 determines that a failure of the humidity detector 201 has occurred when the adjustable threshold value falls below a minimum adjustable threshold value. The unit of Moisture detector 902 may report such failure of the humidity detector 201 to the base unit 112. In one embodiment, the humidity detector unit 902 obtains a number of data readings from the detector of the humidity detector 201 and calculates the value of threshold as a weighted average using a weighting vector. The weighting vector weighs some readings of the detector data relatively more than other readings of the detector data. In one embodiment, the humidity detector unit 902 obtains a number of data readings from the detector of the humidity detector unit 201 and filters the moisture detector data readings and calculates the threshold value from the reading of the humidity detector. filtered detector data. In one embodiment, the humidity detector unit applies a low pass filter. In one embodiment, the humidity detector unit 201 utilizes a Kalman filter to remove undesirable components from the moisture detector data reading. In one embodiment, the humidity detector unit 201 discards detector data readings that are "external" (e.g., too much above or too much below a normative value). In this way, the humidity detector unit 902 can calculate the threshold value even in the presence of noisy detector data.

In one embodiment, the humidity detector unit 902 indicates a notification condition (e.g., alert, warning, alarm) when the threshold value changes too rapidly. In one embodiment, the humidity detector unit 902 indicates a notification condition (e.g., alert, warning, alarm) when the threshold value exceeds a specified maximum value. In one embodiment, the humidity detector unit 902 indicates a notification condition (e.g., alert, warning, alarm) when the threshold value falls below a specified minimum value. In one embodiment, the humidity detector unit 902 adjusts one or more operating parameters of the humidity detector 201 in accordance with the threshold value. Thus, for example, in the example of a humidity detector, the humidity detector unit 201 can adjust the voltage (or current) provided to the humidity probe. Fig. 18 is a back view showing a mode of the impedance probe 1001 configured as a molding system 1800. The molding system 1800 includes linear conductors 1801 and 1802 provided substantially along the length of a molding 1805. molding 1805 can be configured as a typical decorative molding, such as, for example, a baseboard molding, door jamb molding, crown molding, frame molding, etc. In one embodiment, conductors 1801, 1802 are relatively smooth and they are configured to be capacitively coupled to a construction material. In a capacitive coupling mode, the conductors are covered by a relatively thin layer of dielectric material. In one embodiment, a plurality of sharp pins (eg, pins 1803, 1804) are provided to electrically connect the conductors 1801, 1802 to a wall or other construction structure when the molding 1805 is attached to the wall (or structure) . In one embodiment, the conductors 1801, 1802 and the optional pins (eg, pins 1803, 1804) are provided to the molding 1805 during manufacture. As with conventional moldings, moldings according to the 1800 molding system are purchased, cut to length and attached to a building by nails, glue, staples, screws, etc. In one embodiment, connector pins 1808 and 1809 are provided to conductors 1801 and 1802 respectively. The optional connector pins 1808, 1809 extend through the front of the molding 1805 to provide electrical connection to the detector unit 802 provided to the front of the molding 1805, as shown in FIG. 19. FIG. shows the impedance probe 1001 configured as a relatively flexible ribbon 2000. In the ribbon 2000, the linear conductors 1801 and 1802 are provided to a dielectric substrate 2001 (for example, plastic, mylar, nylon, etc.). In one embodiment, the conductors 1801, 1802 are relatively smooth and are configured to be capacitively coupled to a construction material. In a capacitive coupling mode, the conductors are covered with a relatively thin layer of dielectric material. In one embodiment, the ribbon 2000 is attached to the desired construction material by an adhesive. In one embodiment, the ribbon 2000 is attached to the desired building material by a plurality of staples (or nails) driven through the conductors 1801 and 1802 to provide electrical connection between the conductors and the construction material. In one embodiment, a plurality of sharp pins (e.g., pins 1803, 1804) are provided to electrically connect the conductors 1801, 1802 to a wall or other construction structure when the molding 1805 is attached to the wall (or structure) . In one embodiment, an adhesive layer with a peelable protective cover 2002 is provided to the part. back of the substrate. The adhesive can be used to attach the 2002 tape to a molding (or other construction material) before the molding is installed. As shown in Figure 21, an adhesive and a peelable layer 2101 can also be (either together with the adhesive and peelable layer 2002 or alternatively) be installed in the front of the ribbon 2000 to allow the ribbon 2000 to be installed before any molding cover. Thus, the tape 2000 can also be installed on rods before the dry wall is installed, installed between rods, installed on the floor, attached to the internal surface of external walls, etc. Figure 22 shows an installation of the humidity detector unit 902 to the impedance probe ribbon 2000 provided between a wall 2201 and a molding 2209. The detector unit 902 is mounted to the wall and the tape 2000 is configured to extend beyond the end of the molding 2209 and below the detector unit 902. (between the wall and the detector unit 902). In one embodiment, a plurality of tines or pins 2210 are provided to the detector unit 902 to allow the detector unit to make electrical contact with the conductors 1801, 1802 on the tape 2000. Figure 23 shows an alternative installation of the unit of humidity sensor 902 to the impedance probe ribbon 2000 provided between the wall 2201 and the molding 2209. In FIG. 23, the ribbon 2000 is configured to extend beyond the end of the molding 2209 and is wrapped around the end of the molding 2209 and on the face of the molding 2209. The detector unit 902 is mounted to the face of the molding with a portion of the tape 2000 between the detector unit and the face of the molding. In one modality, one or more Conductive bearings 2310 are provided on the rear of the detector unit 902 to allow the detector unit to make electrical contact with the conductors 1801, 1802 on the belt 2000 (and / or with the bolts 1803, 1804). Figure 24 shows an example of an installation of the impedance probe ribbon 2000 wrapped around a corner. In Figure 24 a first part 2402 of the impedance probe ribbon 2000 is mounted between a first section of the wall 2401 and a first molding 2409. A second part 2403 of impedance probe ribbon 2000 is mounted between a second section of the wall 2411 and a second molding 2410. A portion of the first piece 2402 extends beyond the end of the molding 2409, wraps around the corner between the walls 2401 and 2411 and extends between the molding 2410 and the wall 2411. The piece 2402 is superimposed on the piece 2403 in a region 2404. The pins 1803, 1804 in the piece 2402 make electrical contact with the conductors 1801, 1802 on the piece 2403. Fig. 25 shows an example of an installation of two shorter pieces of the impedance probe ribbon 2000 installed under a relatively long molding. In Fig. 25 a first piece 2503 of impedance probe ribbon 2000 is mounted between a wall 2501 and a molding 2509. A second piece 2502 of impedance probe ribbon 2000 is mounted between the wall 2501 and a molding 2509 in such a way what a portion of the first piece 2503 overlaps a second piece 2502 in a region of overlap or overlap. The pins 1803, 1804 in the part 2502 make electrical contact with the conductors 1801, 1802 in the part 2501. Figure 26 shows a self-test unit 2602 for use in connection with the humidity detector unit 902. The unit 2602 self-test is similar to humidity detector unit 902 and includes antenna 204, transceiver 203, controller 202 and power source 206. An input control input of controller 202 is provided to a test module 2610 The test module 2610 includes a test impedance 2611 and an electronically controlled switch 2612. The switch 2612 is configured to provide the test impedance 2611 to the impedance probe 903 when the switch 2612 is activated by the control input. In one embodiment, the control input can also be used to vary the impedance Z of the test impedance 2611. In one embodiment, the monitoring system 113 sends instructions to the self-test unit 2602 to control the impedance Z of the test impedance 2611. When instructed, the self-test unit 2602 connects the test impedance 2611 to the impedance probe 903. The humidity detector 902, also provided to the impedance probe 903, can then be used for measure the impedance of the impedance probe. The humidity detector 902 can expect to measure the impedance corresponding to the combination of the impedance Z and the impedance of the probe just before or after the self-test unit provided the test impedance Z to the probe 903. Thus, for example , in one embodiment, the detector unit 902 is provided at one end of the impedance probe ribbon 2000 and the self-test unit 2602 is provided at an opposite end of the impedance probe ribbon 2000 to facilitate the testing of the ribbon 2000 'and / or facilitate testing of the humidity detector unit 902. It will be apparent to those skilled in the art that the invention is not limited to the details of the above illustrated embodiments and that the present invention can be implemented in other specific forms without deviating from the spirit or essential attribute thereof; In addition, several omissions, substitutions and changes can be made without deviating from the spirit of the invention. For example, although specific embodiments are described in terms of the 900 MHz frequency band, that of ordinary skill in the art will recognize that frequency bands above and below 900 MHz can be used as well. The wireless system can be configured to operate in one or more frequency bands, such as, for example, the HF band, the VHF band, the UHF band, the microwave band, the millimeter wave band, etc. That of ordinary skill in art will also recognize that techniques other than the spread spectrum may also be used and / or may be used instead of spread spectrum. The use of modulation is not limited to a particular modulation method, such that the modulation scheme used can be, for example, frequency modulation, phase modulation, amplitude modulation, combinations thereof, etc. Accordingly, the foregoing description of the embodiments will be considered in all respects as illustrative and not restrictive, the scope of the invention being delineated by the appended claims and their equivalents.

Claims (37)

1. CLAIMS 1. A system for detecting humidity, characterized in that it comprises: a first probe comprising a first conductor with a plurality of needles; a second probe comprising a second conductor with a plurality of needles; a substrate provided to the first probe and the second probe; a humidity detector configured to measure the impedance between the first probe and the second probe; and a processor configured to collect humidity readings upon receipt of impedance values from the humidity detector, the processor is configured to report a possible humidity problem when the humidity detector detects an impedance less than a threshold value.
2. 2. The system according to claim 1, characterized in that the impedance comprises a resistance.
3. 3. The system according to claim 1, characterized in that the impedance comprises a reactance.
4. 4. The system according to claim 1, characterized in that the first and second conductors are substantially linear.
5. 5. The system according to claim 1, characterized in that the first and second conductors are substantially linear and attached to the substrate in a substantially parallel alignment.
6. 6. The system in accordance with the claim 1, characterized in that a peel adhesive is provided and bonded to the substrate.
7. The system according to claim 1, characterized in that an adhesive is provided to a back side of the substrate.
8. The system according to claim 1, characterized in that an adhesive is provided to a front side of the substrate and wherein the first and second conductors are provided to the front side of the substrate.
9. 9. The system in accordance with the claim 1, characterized in that it further comprises means for wirelessly transmitting data from the humidity detector to a monitoring station.
10. The system according to claim 1, characterized in that it further comprises means for wirelessly transmitting resistance data to a monitoring station.
11. The system according to claim 8, characterized in that it also comprises means for receiving instructions for closing a water shut-off valve.
12. 12. The system according to claim 1, characterized in that the humidity detector is provided to a wireless detector unit configured to report data measured by the humidity detector when the wireless detector determines that the humidity data fail a threshold test, the Wireless detector unit is configured to be put into operation in a low power consumption mode when it does not transmit or receive data.
13. The system according to claim 1, characterized in that the water detector is provided with a wireless detector unit configured to report data measured by the water detector when the wireless detector determines that the water data fails a threshold test , the wireless detector unit is configured to be put into operation in a low power consumption mode when it does not transmit or receive data.
14. The system according to claim 1, characterized in that it also comprises a self-test module.
15. The system according to claim 14, characterized in that the self-test module provides a resistor to the first and second conductors.
16. 16. The system according to claim 1, characterized in that it also comprises a computer of Monitoring configured to try to contact a responsible party by phone.
17. 17. The system according to claim 1, characterized in that it also comprises a monitoring computer configured to try to contact a responsible party by cell phone.
18. 18. The system according to claim 1, characterized in that it also comprises a monitoring computer configured to attempt to contact a responsible party by means of cellular text messaging.
19. 19. The system according to claim 1, '. characterized in that it further comprises a monitoring computer configured to attempt to contact a responsible party by pager.
20. 20. The system in accordance with the claim 1, characterized in that it also comprises a monitoring computer configured to attempt to contact a responsible party via the Internet.
21. The system according to claim 1, characterized in that it also comprises a monitoring computer configured to attempt to contact a responsible party by e-mail.
22. 22. The system according to claim 1, characterized in that it also comprises a computer Monitoring configured to try to contact a responsible party via instant messaging over the Internet.
23. 23. The system according to claim 1, characterized in that the monitoring computer is configured to provide graphs of humidity levels.
24. 24. The system according to claim 1, characterized in that the substrate comprises a baseboard molding.
25. 25. The system according to claim 1, characterized in that the system is configured to receive an instruction to change a status reporting interval.
26. 26. The system according to claim 25, characterized in that the system is configured to receive an instruction to change a detector data reporting interval.
27. 27. The system according to claim 23, characterized in that the monitoring computer is configured to monitor the status of the wireless detector unit.
28. 28. The system according to claim 1, characterized in that the substrate comprises a wall molding.
29. 29. A humidity detector system characterized in that it comprises: a detector unit comprising a humidity detector provided with a humidity probe, the detector unit is configured to receive instructions, the detector unit is configured to report a severity of a humidity level when the detector unit determines that the Data measured by the humidity detector fail a threshold test, the detector unit is configured to adjust the threshold according to the reading of the detector taken during a specified period of time.
30. 30. The humidity detector system according to claim 29, characterized in that the severity of the humidity level depends at least in part on the length of time that the humidity detector has detected the humidity above the threshold level.
31. 31. The humidity detector system according to claim 29, characterized in that the severity of the humidity level depends at least in part on the rate of rise in the humidity level.
32. 32. The humidity detector system according to claim 29, characterized in that the threshold is calculated as an average of a plurality of detector data values.
33. 33. The humidity detector system according to claim 29, characterized in that the threshold is calculated at least in part as a weighted average of a plurality of detector data values.
34. 34. The humidity detector system according to claim 29, characterized in that the severity is calculated according to how far a reading of the detector has risen above the threshold.
35. 35. The humidity detector system according to claim 29, characterized in that the severity is calculated at least in part as a function of how far and how quickly the detector readings have risen above the threshold value.
36. 36. The humidity detector system according to claim 29, characterized in that the severity is calculated at least in part as a function of how many detector readings have been measured above the threshold value.
37. 37. The humidity detector system according to claim 29, characterized in that the severity is calculated as a function of what percentage of recent detector readings have been measured above the threshold value.