JP2000163669A - Information display system for fire detection equipment - Google Patents

Abstract

(57) [Summary] [Problem] To display sensing information in a fire sensing facility, which can easily grasp sensing information, a set offset amount, etc. for a predetermined period in the past, and can also grasp not only a physical quantity but also a relative quantity. Provide system. SOLUTION: In a sensing information display system in a fire sensing facility, comprising a smoke detector 3 and a control panel 5 arranged in a warning area, and displaying predetermined information on a physical quantity detected by the smoke detector 3, A physical quantity storage unit 1 for storing a physical quantity and a time at which the physical quantity was acquired in association with each other
1, a time length storage unit 15 for storing an arbitrary time length, and a time period of the physical quantities stored in the physical quantity storage unit 11 which is traced back by a time length stored in the time length storage unit 15 from a predetermined reference time. And a display unit 20 for displaying the physical quantity acquired therein. The display unit 2 further includes a relative quantity conversion unit 82 that converts a physical quantity into a relative quantity according to a predetermined standard, if necessary.
0 indicates a relative quantity instead of or together with the physical quantity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sensing device in a fire detecting facility, comprising a sensor and a control panel for controlling the sensor, for displaying predetermined information on a physical quantity detected by the sensor. It relates to an information display system.

[0002]

2. Description of the Related Art A smoke detection system using a sampling tube has been proposed for detecting a fire in a highly ventilated space such as a clean room or a communication room. In this method, a long sampling pipe having a plurality of suction holes is installed in a monitoring area to be monitored, air in the monitoring area is sucked through the sampling pipe, and smoke of the sucked air is collected. The concentration and the airflow velocity are detected by a smoke detector and an airflow detector provided near the base end of the sampling tube. Here, a plurality of sampling tubes are usually provided, and a plurality of smoke detectors and a plurality of airflow sensors are provided correspondingly. These smoke detectors and airflow detectors are controlled by a control panel.

[0003] The control panel has conventionally been provided with a display unit for displaying detection results of the smoke detector and the airflow detector. FIG. 9 is a front view of a control panel in a conventional fire alarm system, and FIG. 10 is an enlarged front view of a display unit of the control panel in FIG. As shown in FIG. 9, the conventional control panel 100
Are provided with a plurality (six in FIG. 9) of display units 101 corresponding to the number of sensors independently of each other. As shown in FIG. 10, each of the display units 101 includes ten LEDs 110 to 119 for displaying the smoke density detected by the smoke detector as any one of levels 1 to 10, and Three LEDs 120 to 122 for displaying that the level has exceeded a predetermined level are provided.

In such a conventional display unit 101,
When the smoke density detected by the smoke detector is converted to any one of predetermined 10 levels by a conversion unit (not shown) (this level is hereinafter referred to as a density level as necessary), the LEDs 110 to 119 are provided. The LED corresponding to the converted density level and all the LEDs located below the LED are turned on. For example, if the converted density level is 5, the LEDs 110 to 114 are turned on. The conversion of the density level and the lighting of the LED are instantaneously updated every time an output from the smoke detector is received, and are always performed in real time.

[0005] Further, three states of "attention", "warning", and "abnormal" with respect to the density level through an input unit (not shown) (the three states are hereinafter collectively referred to as alarm states as necessary).
Three density levels are input in advance as threshold values for determining the density, and each time the conversion of the density level is performed, a determination unit (not shown) determines whether the density level exceeds the threshold value. For example, when the density levels 5, 8, and 10 are set as the thresholds (corresponding to caution, caution, and abnormality, respectively), if the converted density level is 6, it is determined that the state is "caution". . When it is determined that the concentration level corresponds to the alarm state, the three LEDs 12
The LED corresponding to the corresponding state among 0 to 122 is turned on. For example, in the "attention" state, the LED 120 is turned on. The LED 121 is turned on in the "alert" state, and the LED 122 is turned on in the "abnormal" state.

Also, an offset amount is set as required for the smoke density detected by the smoke detector, and a process of offsetting the offset amount has been performed. Especially in a fire alarm system using an ultra-high sensitivity smoke detector, even in normal conditions when a fire is not occurring, a smoke concentration output can be obtained as if smoke had entered due to a small amount of dust or dust just by the presence of a person, for example. In such a facility, offset processing can be performed. Here, the offset refers to the smoke concentration (actually, the concentration of dust and dust) that is constantly detected by the smoke detector in accordance with the environment in the caution area even when the fire has not occurred normally. This is a process of excluding from the smoke density detected by the sensor, thereby eliminating the smoke density unique to each area from the smoke density of each alert area and enabling monitoring under the same conditions. The offset is set by a SW operation of the control panel. The display of the offset amount is performed through a personal computer connected to the control panel. Once the offset amount is set, the smoke density excluding the offset amount is determined by the determination unit and determined by the LEDs 110 to 119. The display was done.

[0007]

However, the conventional sensing information display system in such a fire sensing facility has the following various problems. First L
In the smoke density display by the EDs 110 to 119, the smoke density can only be displayed in real time as described above. And if you want to see the smoke density and the set offset amount that were detected in the past, it could not be displayed unless an external device such as a personal computer was connected to the control panel.
There was a problem that it took time and effort to display the data, and data could not be displayed if there was no personal computer at the time of the trouble. Further, the data displayed on the screen of the personal computer is merely a series of numbers, and it is difficult to grasp the change tendency of the smoke density and the like. Further, in the conventional display system, it was only possible to display the concentration in real time, so that it was difficult to grasp statistical values such as the maximum value and the minimum value.

The present invention has been made in view of the problems in the conventional sensing information display system in such a fire sensing facility, and can easily grasp sensing information, a set offset amount, and the like for a predetermined period in the past. It is another object of the present invention to provide a sensing information display system in a fire sensing facility that can grasp not only a physical quantity but also a relative quantity.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problem of the sensing information display system in the conventional fire detection equipment, the present invention according to the first aspect of the present invention controls a sensor arranged in a security area and controls the sensor. And a control panel for performing a predetermined information display on the physical quantity sensed by the sensor.In the sensing information display system in the fire detection equipment, the physical quantity and the time at which the physical quantity was acquired are mutually related. A physical quantity storage unit that stores the data in association with each other, a time length storage unit that stores an arbitrary time length, and a physical quantity stored in the physical quantity storage unit, which is stored in the time length storage unit from a predetermined reference time. A display unit for displaying a physical quantity acquired within a time period that is traced back by a time length.

[0010] The present invention described in claim 2 provides the present invention in claim 1.
In the present invention described in the above, further comprising a relative quantity conversion unit that converts the physical quantity into a relative quantity according to a predetermined standard, the display unit, instead of or together with the physical quantity, is converted by the relative quantity conversion unit It is characterized by displaying the relative amount.

According to a third aspect of the present invention, there is provided a sensor disposed in a security area and a control panel for controlling the sensor, and a predetermined information display relating to a physical quantity detected by the sensor is performed. In the sensing information display system in the fire sensing equipment, a relative quantity conversion unit that converts the physical quantity into a relative quantity according to a predetermined standard, and stores the relative quantity and the time at which the relative quantity was acquired in association with each other. A relative amount storage unit for storing, and a time length storage unit for storing an arbitrary time length,
A display unit that displays a relative amount obtained within a time period that is a time period that is traced back from a predetermined reference time by the time length stored in the time length storage unit, among the relative amounts stored in the relative amount storage unit. It is characterized by having.

The present invention described in claim 4 provides the present invention in claim 3.
In the present invention, a sensitivity type storage unit that stores the sensitivity of the sensor is provided, and the relative amount stored in the relative amount storage unit is based on the sensitivity type information stored in the sensitivity type storage unit. And a display unit for displaying the relative quantity and / or the physical quantity.

[0013] The present invention described in claim 5 provides the present invention in claim 1.
In the present invention described in any one of Items 4 to 4, an offset amount storage unit that stores an arbitrary offset amount, and an offset for the amount displayed on the display unit is performed based on the offset amount stored in the offset amount storage unit. An offset unit, and the display unit displays the offset amount stored in the offset amount storage unit and the value offset by the offset unit instead of or together with the physical amount. It is configured as a feature.

The present invention described in claim 6 is the first invention.
In the present invention described in any one of Items 5 to 5, further comprising a statistical processing unit that performs predetermined statistical processing on the physical quantity, wherein the display unit is statistically processed by the statistical processing unit instead of or together with the physical quantity. It is configured to display a value.

The present invention according to claim 7 provides the present invention according to claim 6.
In the present invention, the predetermined statistical processing is a maximum value calculation and / or a minimum value calculation.

The present invention described in claim 8 provides the present invention according to claim 1.
In the present invention described in any one of Items 1 to 7, the predetermined reference time is:
It is characterized in that it corresponds to a predetermined date and time or when the rate of change of the physical quantity exceeds a predetermined rate of change.

The present invention described in claim 9 is the first invention.
In the present invention as described in any one of Items 8 to 8, the detector is a smoke detector that detects smoke density, and the physical quantity is smoke density.

According to a tenth aspect of the present invention, in the first to eighth aspects of the present invention, the sensor is an airflow sensor for detecting an airflow velocity, and the physical quantity is an airflow velocity. It is configured as a feature.

[0019]

An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram of a smoke detection facility as a fire detection facility in the present embodiment, FIG.
1 is a front view of the control panel of FIG. 1, FIG. 3 is a block diagram of the control panel of FIG. 1, and FIGS. 4 to 8 are display screens displayed on the display unit of the control panel of FIG. In FIG. 1, the fire detection equipment of this embodiment is configured as a smoke detection equipment using a sampling pipe. This smoke detection equipment is installed in a security area A to be monitored, and has a long sampling pipe 1 having a plurality of suction holes 1a formed therein, and sucks air in the security area A through the sampling pipe 1. And a smoke detector 3 and an airflow detector 4 provided near the base end of the sampling tube 1 (hereinafter, collectively referred to as a sensor 200 as necessary).
And a control panel 5 for controlling these sensors 200. The smoke detector 3 irradiates the air sucked by the sampling tube 1 with a laser beam, receives the scattered light of the laser beam, and outputs the amount of received light as an analog signal. The airflow sensor 4 outputs the velocity of the air sucked by the sampling pipe 1 in an analog manner. However, the sensor 200
Can be arbitrarily changed.

Here, although omitted in FIG. 1, a plurality of sampling tubes 1 are provided, and a plurality of smoke detectors 3 and a plurality of air flow sensors 4 are provided correspondingly. The plurality of smoke sensors 3a to 3j and the airflow sensors 4a to 4j are intensively controlled by a control panel 5. As shown in FIG. 3, the control panel 5 has a storage unit 10,
Display unit 20, display control unit 30, input unit 40, output unit 5
0, A / D converter 60, switching unit 70, and control unit 8
0.

Among the above components, the storage unit 10 stores various types of information. The storage unit 10 converts the analog outputs of the smoke detectors 3a to 3j by a physical quantity conversion unit 81, which will be described later, and obtains the smoke density as a physical quantity. And a physical quantity storage unit 11 for storing the time when the smoke density is acquired in association with each other. Further, the storage unit 10 includes a relative amount storage unit 12 that stores a relative amount obtained by converting a smoke density by a relative amount conversion unit 82 described later and a time when the relative amount is acquired in association with each other. Further, the storage unit 10 includes a threshold storage unit 13 that stores a threshold value input via the input device, and an offset amount storage unit 1 that stores an offset amount input via the input device.
4. A time length storage unit 15 for storing the time length input via the input device. The threshold value storage unit 13, the offset amount storage unit 14, and the time length storage unit 15 store a threshold value, an offset amount, or a time length as a default, and a switching threshold value, an offset amount, or a time length. In addition,
The storage unit 10 stores programs and data required for fire monitoring. Physical quantity storage unit 1 of this storage unit 10
The 1-to-time length storage unit 15 is specifically constituted by a ROM, a RAM, and any other external storage device integrally or separately from each other, and information that does not need to be rewritten and default information of various set values are stored in the ROM. , And other information are stored in the RAM or the external storage device.

The display unit 20 is specifically configured as a single liquid crystal panel disposed on the front of the housing of the control panel 5 as shown in FIGS. The display control unit 30 controls the display unit 20, and is specifically an LCD controller.

The input unit 40 receives an input signal from an input device for inputting or changing the above-described threshold value or an arbitrary device such as various switches (hereinafter, collectively referred to as an input device as required). The output unit 50 is an output contact for transmitting an output signal to a printer, a speaker or a sensor 200, or any other device (hereinafter, collectively referred to as an output device as necessary). A /
The D converter 60 converts an analog signal output from the sensor into a digital signal and outputs the digital signal to the control unit 80. Further, the switching unit 70 performs a switching operation of enabling input of only an arbitrary part of the analog signals of the plurality of sensors to the A / D converter 60, and is configured by, for example, a multiplexer.

The control unit 80 includes a storage unit 10, a display unit 20, a display control unit 30, an input unit 40, an output unit 50, an A /
The D converter 60 and the switching unit 70 are controlled. The controller 80 includes a physical quantity converter 81 that converts analog outputs of the smoke detectors 3a to 3j into smoke density according to a predetermined standard.
A relative amount conversion unit 82 that converts the smoke density converted by the physical amount conversion unit 81 into a relative amount according to a predetermined reference; and a relative amount stored in the relative amount storage unit 12 to the offset amount storage unit 14. An offset unit 83 that performs an offset process for dividing the stored offset amount, a statistical processing unit 84 that performs a predetermined statistical process on the physical quantity stored in the physical quantity storage unit 11, and a conversion by the physical quantity conversion unit 81 A judgment unit 85 for judging which level of the alarm area A is in an alarm state by comparing the calculated smoke density with the smoke density stored as a threshold value in the threshold value storage unit 13. . Physical quantity converter 81 of this controller 80
Specifically, the determination unit 85 is configured integrally or separately from each other by an electric circuit including an IC and a program.

The display operation of the sensing information in the fire detecting equipment thus configured will be described below. First, when the power of the control panel 5 is turned on and the initialization switch is operated, the physical quantity storage unit 11, the relative quantity storage unit 12, and the threshold storage unit 13
Is initialized. Then, when the monitor enters three smoke densities as thresholds via the input device, the input thresholds are stored in the threshold storage unit 13. Also, the threshold storage unit 13,
The offset amount storage unit 14 and the time length storage unit 15 store default threshold values (three of caution, caution, and abnormality), offset amount or time length, and switching threshold values (caution, caution,
Abnormality 3), the offset amount or the time length are stored in advance. This stored content can be rewritten as needed. In the present embodiment, all the smoke detectors 3a to 3j
With respect to the offset amount, the default offset amount of the offset amount storage unit 14 is “0”, the offset amount at the time of switching is, for example, “30%”, the default time length of the time length storage unit 15 is “10 minutes”, It is assumed that the time length is set to “28 days”. However, the smoke density, the offset amount, and the time length may be set to different values for each sensor according to the environment in which the sensor is installed.

Thereafter, when the monitor presses a monitoring start button (not shown), a control signal for instructing the suction device 2 to start suction is output via the output unit 50, and fire monitoring is started. After the start of the monitoring, until the output signal indicating the occurrence of an alarm or a failure is output from the determination unit 85, only the text "monitoring fire" is displayed on the display unit 20 without lighting the backlight ( Illustration of this display is omitted).

First, polling signals are sequentially called by outputting polling signals to the sensors at a predetermined polling timing from the control unit 80, and the analog signals output from each sensor are sequentially received via the switching unit 70. The signals are sequentially converted into digital signals via the / D converter 60. The converted digital signal is converted into smoke density by the physical quantity converter 81. For example, the output value of the sensor represented by the digital signal converted by the A / D converter 60 is expressed in unit%.
/ M. The smoke density converted in this manner is sequentially stored in the physical quantity storage unit 11 for each sensor. The smoke density converted by the physical quantity converter 81 is further converted to a relative quantity by a relative quantity converter 82. For example, it is converted into a percentage value (unit%) with the full scale value of the sensor being 100. The relative amounts thus converted are sequentially stored in the relative amount storage unit 12 for each sensor. These physical quantity converter 81 and relative quantity converter 82
Is performed with reference to a conversion table (not shown). The signal output from the sensor has an address number of each sensor added thereto, and the sensor is specified using the address number. When an output is received from the sensor, the control panel 5
The time is read from a timer (not shown) provided in
The time is stored in the physical quantity storage unit 11 and the relative quantity storage unit 12 in association with the physical quantity or the relative quantity, respectively. As another embodiment, the digital signal passed through the A / D converter 60 is converted into a relative amount (for example,%) by a relative amount converter 82, and stored in the relative amount storage 12 separately for each sensor. Then, the sensitivity type storage unit of the sensor (for example, 0.10
The relative quantity may be converted into a physical quantity (% / m) and displayed based on the sensitivity type information in the% type, 0.20% type, or 0.50% type. In this case, the physical quantity storage unit 11 is not always necessary.

Here, each time the conversion by the physical quantity converter 81 or the relative quantity converter 82 is performed, the determination by the determination unit 85 of the control unit 80 is performed. That is, the judgment unit 85
In, the smoke density converted by the physical quantity conversion unit 81 or the relative quantity conversion unit 82 is compared with the smoke density (physical quantity and / or relative quantity) stored as a threshold in the threshold storage unit 13,
If the converted smoke density is equal to or higher than the stored smoke density, a signal indicating one of “caution”, “alert”, and “abnormal” is output according to the degree. This output is sent to the control unit 80
In the case where a signal indicating "caution", "warning", or "abnormal" is output, the representative indicator light corresponding to the signal among the representative indicator lights 91 to 93 shown in FIG. Is turned on and the display unit 20 is controlled to display an alarm screen.

In the display of the alarm screen, the stored time length stored as a default in the time length storage unit 15 is called, and the time which has been advanced by the time length from the time when the alarm is generated (hereinafter, a display target period). The smoke density stored in the physical quantity storage unit 11 is retrieved as the one obtained in the above. Then, the smoke density is set on the vertical axis and the display target period is set on the horizontal axis, and a graph is displayed on the display unit 20. At this time, the offset amount stored as a default in the offset amount storage unit 14 is called, and the offset unit 83 performs the offset. Specifically, as shown in FIG.
In the display unit 20, the horizontal axis represents the display period from 10 minutes before the time of the occurrence of the alarm, and the vertical axis represents the smoke density acquired during the display period. However, since the offset amount stored as the default is “0”, no offset is performed here. The display unit 20
In this example, the character "Smoke level monitor (10 minutes)" is displayed in the upper center to indicate that this screen is a screen for monitoring the smoke density from 10 minutes before the occurrence of the alarm.

In the graph shown in FIG. 4, for example,
The smoke density detected 6 minutes before the alarm was issued was about 0.1
It can be easily grasped that it was 80% / m. In this graph, the smoke density stored as a threshold in the threshold storage unit 13 is indicated by a dotted line, and the smoke density as the threshold is about 0.04% / m and about 0.100% /
m, which is approximately 0.180% / m.

In FIG. 4, on the right side of the graph,
"15 lines""0.20%type""Current value 0.12 (% /
m) ”and“ No offset ”are displayed. Of these, "15 lines" means the line number of the sensor where the smoke density was detected on the screen, and here, it is understood that the smoke density detected by the sensor of line number 15 is displayed. can do. Also, “0.20% type” means the type of sensor that sensed the smoke density on the screen,
Here, it can be understood that the display indicates the smoke density detected by the 0.20% type sensor. The “current value 0.12 (% / m)” means the current smoke density, and here, it can be understood that the current smoke density is 0.12% / m. Therefore, the present value can be grasped more quickly and in detail than in the case of only the graph display. In addition, since the offset is 0 in this graph, a character “OFFSET” indicating this is displayed, and in FIG. 4, it can be understood that the smoke density is not offset. Although the screen of FIG. 4 is a display relating to one of the smoke detectors 3a to 3j, it is possible to switch to a display relating to another smoke detector by instructing a switch through the input device. it can.

When the screen of FIG. 4 is displayed and an instruction to switch to the relative amount display is given via the input device, the smoke density stored in the physical amount storage unit 11 is replaced with the smoke density.
The relative amount stored in the relative amount storage unit 11 as being obtained during the display target period is called and displayed in a graph on the display unit 20 (when the screen is switched, the display contents that are not to be switched are switched. The previous display contents will be inherited as is.) The screen of the display unit 20 is shown in FIG. 5 (parts that are not particularly described are the same as the screen of FIG. 4). In the screen of FIG. 5, the vertical axis is 0 to 100.
The relative amount is set to the relative amount up to% (however, in order to save the display area, memory display is performed with numerical values of 0 to 10). Also, the same numerical value as in FIG. 4 is displayed on the right side of the graph, while the line number of the smoke detector is displayed as “15 lines” on the left side of the graph, and the current relative amount is “61.3”.
% "Is displayed. Therefore, in this relative amount display, not only the same numerical value as in FIG. 4 can be grasped, but also the line number and the current value as the relative amount can be accurately grasped only by looking at the left side of the graph.

In the graph shown in FIG. 5, for example,
It can be easily understood that the relative amount of smoke density detected 10 minutes before the time of the alarm was about 35%. In this graph, the smoke density stored as the threshold value in the threshold value storage unit 13 is converted into a relative amount by the relative amount conversion unit 82 and displayed. The relative amount is about 20% and about 50%.
%, About 90%.

Next, when the screen of FIG. 4 is displayed, when the switching of the display target period is instructed via the input device, the time length stored as the switching time length in the time length storage unit 15 is called. At the same time, based on this time length, the smoke density stored in the physical quantity storage unit 11 as being acquired during the display target period is called and displayed on the display unit 20 as a graph. The screen of the display unit 20 is shown in FIG. 6 (parts that are not particularly described are the same as the screen of FIG. 4). In the screen of FIG. 6, the horizontal axis represents the display target period up to 28 days before the alarm is generated. In the graph shown in FIG. 6, for example, the smoke density detected 28 days before the time of the alarm occurrence is about 0.08%
/ M can be easily grasped. In addition, this screen is displayed at the center of the upper part of the display unit 20 from the time when the alarm is generated.
The character "Smoke level monitor (monthly)" is displayed in the upper center to indicate that the screen is for monitoring the smoke density up to eight days ago (about one month).

Although the default time length "10 minutes" and the time length at the time of switching "28 days" are set in the time length storage unit 15, these values can be arbitrarily changed. The display according to the changed content is performed. For example, when it is desired to see the smoke concentration in detail up to seven days before the alarm is generated, the time length “7 days” may be input via the input device. In this case, the smoke density up to seven days before the occurrence of the alarm is called from the physical quantity storage unit 11 and displayed on the display unit 20. In this display, as will be described later, since up to seven days before the occurrence of the alarm is assigned to the horizontal axis at full scale,
The smoke density is displayed in more detail than when the smoke density of the day before is displayed.

When the screen shown in FIG. 6 is displayed and an instruction to switch to the statistic value display is given through the input device, the data to be displayed on the display unit 20 (that is, 28% from the time when the alarm is generated). The statistical processing unit 84 performs predetermined statistical determination on the smoke density acquired up to the day before, and displays the result on the display unit 20. Here, in the present embodiment, the maximum value and the minimum value are calculated as the predetermined statistical processing. In addition to this, any statistical processing such as average, variance, or deviation may be performed as the statistical processing. The screen of the display unit 20 is shown in FIG. 7 (parts not particularly described are the same as the screen of FIG. 6). In the screen of FIG. 7, both the maximum value (MAX in the figure) and the minimum value (MIN in the figure) for each day are displayed on the same graph.

In the case where the relative amount display screen shown in FIG. 5 is displayed, when an instruction to switch the offset is given through the input device, the offset amount stored in the offset amount storage unit 14 as the offset amount at the time of switching is displayed. Is called, and an offset process for offsetting the offset amount from the relative amount to be displayed is performed by the offset unit 83, and the offset relative amount is displayed on the display unit 20.
Is displayed in. The screen of the display unit 20 is shown in FIG. 8 (parts that are not particularly described are the same as those in FIG. 5). On the screen of FIG. 8, a relative amount obtained by offsetting the offset amount by 30% from the relative amount displayed on the screen of FIG. 5 is displayed in a graph. For example, the current relative amount is 61.3% in the screen of FIG. 5, but is offset to 31.3% in the screen of FIG. "Offset 30%" is displayed on the right side of the graph so that the offset amount is 30%. By performing the offset in this manner, the smoke density that is constantly output can be excluded.

Here, in the display of FIGS. 4 to 8, the display is performed in consideration of the display accuracy of the display unit 20. For example, if the display target period is 10 days before the alarm occurrence, the 10 days are assigned to the full scale on the horizontal axis, and if the display target period is switched to 28 days before the alarm occurrence,
The display is performed by allocating the 28 days to the full scale on the horizontal axis. Also, for the vertical axis, for example, sensitivity range 0 to 0
When displaying the smoke density detected by the smoke detector up to 0.20% / m, 0 to 0.20% / m is assigned to the full scale of the vertical axis, and the sensitivity range is 0 to 0.50% / m. When the display is switched to the display of the smoke density detected by the smoke detector up to m, 0 to 0.50% / m is assigned to the full scale on the vertical axis and displayed. However, they can be displayed on the same scale. The assignment of the scale and the calculation of the smoke density in accordance with the assigned scale are appropriately performed by the control unit 80.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and may be implemented in various forms within the scope of the technical idea. Therefore, these different modes will be described below. First, in the embodiment, the fire detection equipment is configured as a smoke detection equipment using a sampling pipe. However, the present invention is not limited to the display system of the detection equipment. It may be applied to a system. Also, the sensor may be a sensor that senses a physical quantity other than the smoke density. In other words, the display system of the present application only needs to display information relating to physical quantities, and is not limited to the smoke density described in the above embodiment. As the relative amount, a relative amount based on an arbitrary reference value other than the percentage may be employed.

The display section may not be provided on the control panel, and may be installed at an arbitrary location separated from the display panel. For example, the level display section and the judgment result display section may be provided at different locations. It can also be installed in Needless to say, the display unit can be constituted by an arbitrary display device such as a plasma display instead of the liquid crystal panel. The holding / non-holding of the display contents and the holding / non-holding of each display screen shown in FIGS. 4 to 8 may be performed based on an arbitrary standard. For example, the display on the level display unit shown in FIG. 4 may be kept in a holding state until cleared by a supervisor without updating the display in real time. Alternatively, each of the display screens shown in FIGS. 4 to 8 may be kept in a held state until cleared by the observer, or may be cleared when the cause of the alarm is removed.

Further, in the above-described embodiment, the range to be displayed is set back from the time when the alarm is generated by the set time length. However, any reference time other than the time when the alarm is generated may be set. For example, a predetermined date and time measured by a timer provided in the control panel 5 may be set as the reference time. In particular,
For example, if the end of the month is set as the reference time and the time length is set to one month, the smoke density sensed during the month of the current month is automatically displayed at the end of each month. In addition, the reference time may be set when the change rate of the smoke density exceeds a predetermined change rate, or when the information detected by another sensor such as an airflow sensor indicates an abnormal change. A past time can be set as the reference time. That is, the storage unit 1
Any range may be set as a display target as long as the range is stored as 0. The smoke density in the display target period may be printed in the same format as the display on the display unit or in any other format. Alternatively, the display may be performed with a predetermined time in the past as a reference time and a range that is further advanced by a time length as a display target period.

The conversion to the relative amount by the relative amount converter 82 may be performed every time the relative amount is displayed. In this case, the relative amount storage unit 12 may be omitted. In the case where the digital value from the A / D converter 60 is converted into a relative amount, when converting the relative amount into a physical amount (% / m) based on the sensor sensitivity type information, the vertical axis of the display graph indicates the scale of the physical amount. May be included. In this case, the physical quantity storage unit 11 may be omitted. Further, the conversion of the threshold value into the relative amount for displaying the relative amount, the calculation of the statistic value for performing the statistic display, and the offset for performing the display when there is an offset are not performed for each display but are performed in advance and stored. It is also possible to store it in the unit 10. These are determined by comparing the capacity of the storage unit and the load of the control unit.

In the above embodiment, only the smoke density detected by the smoke detector of one line is displayed. However, the smoke density detected by the smoke detectors of a plurality of lines is displayed on the same screen. They may be displayed simultaneously. In this case, only the sensors important for fire monitoring may be displayed, or the display may be performed for each group set in advance (for example, for each of the sensors whose arrangement positions are close to each other). Alternatively, the screen may be divided into a plurality of windows to form a multi-window, and different lines or groups of sensor information may be displayed for each screen. By performing such display, the display of each sensor can be grasped collectively within the same field of view, and the entire sensing information can be easily grasped. For example, the maximum level and the current concentration level of a plurality of sensors can be easily compared and examined, and it becomes easy to obtain more detailed information for investigating the cause of the abnormality. When displaying a plurality of data at the same time, such as when simultaneously displaying such a plurality of lines of smoke detectors, when displaying the statistical value of the above embodiment, or when displaying a threshold value, the display colors of the data and the background are used. , Display line type and pattern can be changed according to data contents and setting contents.

[0044]

As described above, claims 1 to 8,
The present invention described in 10 is a physical quantity storage unit that stores a physical quantity and a time at which the physical quantity is acquired in association with each other, a time length storage unit that stores an arbitrary time length, and a physical quantity storage unit. A display unit that displays a physical quantity obtained within a time period that is traced back by the time length stored in the time length storage unit from the predetermined reference time, of the physical quantity, Can be displayed, and the tendency of the change in the physical quantity up to a predetermined time (trend) can be easily grasped. Therefore, the cause of the failure and the recovery can be quickly and easily performed.

Further, the present invention according to claim 2 includes a relative quantity conversion unit for converting a physical quantity into a relative quantity according to a predetermined standard, and the display unit displays the relative quantity converted by the relative quantity conversion unit. As a result, the degree and tendency of occurrence of physical quantities can be grasped easily and quickly, and the cause of a failure can be identified and recovered quickly and easily.

Further, according to the present invention, a relative quantity conversion unit for converting a physical quantity into a relative quantity in accordance with a predetermined standard, and a relative quantity and a time at which the relative quantity is obtained are stored in association with each other. A relative amount storage unit, a time length storage unit for storing an arbitrary time length, and a time length stored in the time length storage unit from a predetermined reference time among relative amounts stored in the relative amount storage unit. And a display unit for displaying the relative amount acquired within a time period that can be traced back, so that the relative amount can be displayed retroactively from a predetermined time to a past time. ) Can be easily grasped, so that the cause of the failure can be identified and recovered quickly and easily.

Further, according to the present invention, there is provided a sensitivity type storage unit for storing the sensitivity of the sensor, and the relative amount stored in the relative amount storage unit is stored in the sensitivity type storage unit. A physical quantity conversion unit for converting into physical quantity based on the type information;
With the provision of the display unit for displaying the relative quantity and / or the physical quantity, the relative quantity can be converted into the physical quantity according to the sensitivity of the sensor. In this case, the physical quantity storage unit can be omitted.

Further, according to the present invention, an offset amount storing section for storing an arbitrary offset amount is displayed on the display section based on the offset amount stored in the offset amount storing section. An offset unit for offsetting the amount, the display unit displays the offset amount stored in the offset amount storage unit and the value offset by the offset unit, thereby displaying not only the offset value but also the offset value. Since the offset amount can also be easily confirmed, the degree of occurrence of the physical quantity and the like can be easily grasped in consideration of the offset amount.

The present invention according to claims 6 and 7 further comprises a statistical processing section for performing predetermined statistical processing on the physical quantity, and the display section displays the value statistically processed by the statistical processing section. It is possible to easily grasp arbitrary statistical values such as the maximum value and the minimum value, and to quickly and easily identify the cause of a failure or recover the failure.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a fire detection facility according to a first embodiment of the present invention.

FIG. 2 is a front view of the control panel of FIG.

FIG. 3 is a block diagram of a control panel of FIG. 1;

FIG. 4 is a display screen of a display unit of the control panel of FIG. 1, particularly showing a screen for displaying a physical quantity;

5 is a display screen of a display unit of the control panel of FIG. 1, and FIG.
5 shows a screen in which the vertical axis setting is switched to the relative amount for the screen of FIG.

6 is a display screen of a display unit of the control panel of FIG. 1, and FIG.
The screen in which the display target period of the horizontal axis setting is switched with respect to the screen of FIG.

7 is a display screen of a display unit of the control panel of FIG. 1, and FIG.
5 shows a screen in which display data is switched to a maximum value and a minimum value for the screen of FIG.

8 is a display screen of a display unit of the control panel of FIG. 1, and FIG.
5 shows a screen in which display data is switched to data with offset for the screen of FIG.

FIG. 9 is a front view of a control panel in a conventional fire alarm system.

FIG. 10 is an enlarged view of a display unit of the control panel of FIG.

[Explanation of symbols]

 A Warning area 1 Sampling pipe 2 Suction device 3a-3j Smoke detector 4a-4j Air flow sensor 5 Control panel 10 Storage unit 11 Physical quantity storage unit 12 Relative quantity storage unit 13 Threshold storage unit 14 Offset amount storage unit 15 Time length storage unit 16 sensitivity type storage unit 20 display unit 30 display control unit 40 input unit 50 output unit 60 A / D converter 70 switching unit 80 control unit 81 physical quantity conversion unit 82 relative quantity conversion unit 83 offset unit 84 statistical processing unit 85 determination unit 91 to 91 93 Representative indicator light

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kiyoaki Koyama 2-10-43 Kami-Osaki, Shinagawa-ku, Tokyo Inside Ho Chiki Co., Ltd. (72) Inventor Hiroyuki Tatsuno 2- 10-43, Kami-Osaki, Shinagawa-ku, Tokyo Inside of Ho Chiki Co., Ltd. (72) Naoya Matsuoka, Inventor 2-10-43, Kami-Osaki, Shinagawa-ku, Tokyo Inside of Ho Chiki Co., Ltd. F term in reference (reference) 5C087 AA02 AA04 AA10 AA25 BB51 BB65 DD04 EE05 EE20 FF01 FF04 GG03 GG09 GG18 GG19 GG24 GG79 GG90 5G405 AA08 AB02 AD07 CA04 CA22 CA41 CA60 DA21 DA23 DA24 EA27 EA38 EA56

Claims (10)

[Claims] 1. Sensing information in a fire sensing facility, comprising: a sensor disposed in a security area; and a control panel for controlling the sensor, and for displaying predetermined information on a physical quantity detected by the sensor. In the display system, a physical quantity storage unit that stores the physical quantity and the time at which the physical quantity was acquired in association with each other, a time length storage unit that stores an arbitrary time length, and a physical quantity that is stored in the physical quantity storage unit A display unit for displaying a physical quantity acquired within a time period that is traced back by a time length stored in the time length storage unit from a predetermined reference time, among the sensing information in the fire detection equipment. Display system. 2. A relative quantity conversion unit for converting the physical quantity into a relative quantity according to a predetermined standard, wherein the display unit displays the relative quantity converted by the relative quantity conversion unit instead of or together with the physical quantity. The sensing information display system according to claim 1, wherein the amount is displayed. 3. Sensing information in a fire sensing facility, comprising: a sensor disposed in a security area; and a control panel for controlling the sensor, and for displaying predetermined information relating to a physical quantity detected by the sensor. In the display system, a relative quantity conversion unit that converts the physical quantity into a relative quantity according to a predetermined standard; a relative quantity storage unit that stores the relative quantity and the time at which the relative quantity was acquired in association with each other; A time length storage unit that stores a time length, and a relative amount stored in the relative amount storage unit, which is acquired within a time period that is traced back from the predetermined reference time by the time length stored in the time length storage unit. And a display unit for displaying the relative amount of the detected information. 4. A sensitivity type storage unit for storing the sensitivity of the sensor, wherein the relative amount stored in the relative amount storage unit is
4. The apparatus according to claim 3, further comprising: a physical quantity conversion unit configured to convert the sensitivity type information stored in the sensitivity type storage unit into a physical quantity based on the sensitivity type information; and a display unit configured to display the relative quantity and / or the physical quantity. The sensing information display system in the fire sensing equipment described in the above. 5. An offset amount storage unit for storing an arbitrary offset amount, and an offset unit for offsetting an amount displayed on the display unit based on the offset amount stored in the offset amount storage unit. The display unit displays the offset amount stored in the offset amount storage unit and the value offset by the offset unit instead of or together with the physical amount. A sensing information display system in the fire sensing equipment according to any one of claims 1 to 4. 6. A statistical processing unit for performing predetermined statistical processing on the physical quantity, wherein the display unit displays a value statistically processed by the statistical processing unit instead of or together with the physical quantity. The sensing information display system in a fire sensing facility according to any one of claims 1 to 5, wherein: 7. The sensing information display system according to claim 6, wherein the predetermined statistical processing is a maximum value calculation and / or a minimum value calculation. 8. The method according to claim 1, wherein the predetermined reference time is a time corresponding to a predetermined date and time or a time when a change rate of the physical quantity exceeds a predetermined change rate. Information display system in Japanese fire detection equipment. 9. The system according to claim 1, wherein the sensor is a smoke detector for detecting smoke density, and the physical quantity is a smoke density. 10. The sensing information display system according to claim 1, wherein the sensor is an airflow sensor that detects an airflow speed, and the physical quantity is an airflow speed.