JP2008295020A - Home security system and control method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a home security system which can be easily installed at a low cost by utilizing power line communication without laying dedicated wiring for management. <P>SOLUTION: A home security system comprises a repeater 3 connecting a power line communication means 2 to an external network 4 and a control terminal 5 which enables the power line communication means 2 to perform transmission/reception via the external network 4 and the relay apparatus 3, wherein the power line communication means 2 comprises a master unit 7 connected to a power line 6 and slave units 8, 9 connected to devices 18, 19 and the power line 6, and the master unit 7 comprises a signal processing means 11 for transmitting monitor signals from the slave units 8, 9 to the control terminal 5 via the external network 4 and transmitting a control signal received from the control terminal 5 via the external network 4 to the power line 6, so that since the power line communication means 2 is used for monitoring and controlling the devices 18, 19, the home security system can be easily installed at a low cost. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a home security system.

Many home security systems configured to be able to control various electrical devices in the home from the outside have been proposed and known (Patent Document 1).
Japanese Patent Laid-Open No. 11-312131

  However, when centralized management, remote management, or monitoring of openings such as windows and doors of a building is to be performed using such a home security system, dedicated wiring for these managements should be provided when a house is newly constructed. In addition to laying and installing management equipment, it was also necessary to install equipment that can be controlled externally, corresponding to such management.

  In view of the above problems, an object of the present invention is to provide a home security system that can be easily installed at low cost by using power line carrier communication without newly laying a dedicated management line. .

  The home security system of the invention of claim 1 is a power line carrier communication means for transmitting a monitoring signal and a control signal to a power line and monitoring and controlling a device connected to the power line, the power line carrier communication means and an external network, And a control terminal capable of transmitting and receiving the monitoring signal and the control signal via the external network and the relay device, and the power line carrier communication means is connected to the power line. A parent device connected to the device and the power line, and a monitoring device for monitoring the operation of the device and a control device for controlling the device; The monitoring signal is transmitted to the control terminal via the external network and received from the control terminal via the external network. It is to have a signal processing means for transmitting the control signal to the power line.

  The home security system of the invention of claim 2 is characterized in that the signal processing means includes an e-mail creating means for creating an e-mail based on the monitoring signal.

  The home security system of the invention of claim 3 is characterized in that the e-mail creating means comprises a fixed sentence creating means for creating the e-mail according to a pre-registered fixed sentence.

  According to a fourth aspect of the present invention, there is provided a home security system comprising detection means for detecting the state of an opening such as a window or door of a building, and wireless transmission means for transmitting a detection signal from the detection means as a radio signal. In addition, the device is provided with a wireless receiving means for receiving the wireless signal.

  A control method for a home security system according to a fifth aspect of the present invention is the control method for a home security system according to any one of the first to third aspects, wherein the monitoring means detects a change in the state of the device connected to the slave unit. The detection signal is transmitted to the master unit when it is detected.

  According to a sixth aspect of the present invention, there is provided a method for controlling a home security system, wherein the master unit receives the control signal transmitted from the control terminal by accessing a server of the external network.

  According to the first aspect of the present invention, since power line carrier communication is used for monitoring and control of equipment, an existing power line can be used for wiring, so that it can be easily installed at low cost. In addition, since the master unit is equipped with signal processing means that enables data exchange with an external network, home security can be established simply by connecting the master unit and the slave unit to a power line in a facility that can communicate with the external network. Since the system is constructed, wiring can be simplified and installation can be further facilitated.

  According to the second aspect of the present invention, since the monitoring signal and the control signal with the control terminal are transmitted and received by the electronic mail system, it is possible to use the communication means of the existing network, and the operability and versatility. It becomes possible to make it excellent.

  According to the invention of claim 3, the operator of the control terminal can confirm the change in the state of the device with a fixed sentence.

  According to the invention of claim 4, by checking the state of the window of the building from the control terminal, it is possible to easily grasp abnormalities such as intrusion of a suspicious person into the building and destruction of the window or door, Since it is possible to avoid dangers such as a resident being in contact with a suspicious person who has entered the building when returning home, the usability of the security system is improved.

  According to the invention of claim 5, it is possible to notify the control terminal of a change in the state of the device in real time.

  According to the sixth aspect of the present invention, the control signal from the control terminal is transmitted to the parent device via the external network, and the device is reliably controlled.

  Hereinafter, an embodiment of a home security system according to the present invention will be described with reference to the accompanying drawings. In FIG. 1 showing an overall view of a home security system, for example, a home security system 1 includes a power line communication means 2 (PLC: Power Line Communication), a modem router 3 and a hub 39 corresponding to a relay device, and an external network. And the mobile phone 5 corresponding to the control terminal.

  The power line carrier communication means 2 is composed of a power line 6 of a commercial AC power source, and a master unit 7 and a plurality of slave units 8 and 9 that can be attached to a plurality of outlets C provided on the power line 6 via plugs P, respectively. Is done.

  FIG. 2 shows a configuration on the base unit 7 side. In FIG. 2, a single base unit 7 is connected to the power line 6 of the commercial AC power source. The base unit 7 includes a PLC control circuit 10 and signal processing. A microcomputer 11 corresponding to the means, a power supply circuit 12, and an Ethernet (registered trademark) controller 13 are provided.

  The PLC control circuit 10 includes a synchronization circuit 14, a coupling circuit 15, a transmission circuit 16, and a reception circuit 17, and is controlled by the microcomputer 11. The microcomputer 11 is connected to a plurality of on / off switches (not shown) as operation command means for individually issuing on / off commands to the devices 18 and 19 connected to the slave units 8 and 9. The The transmission circuit 16 is controlled by the microcomputer 11 and outputs a high frequency control signal for controlling the devices 18 and 19 to the power line 6 via the coupling circuit 15. The receiving circuit 17 is configured to convert a high-frequency signal input via the coupling circuit 15 into a digital signal and supply the digital signal to the microcomputer 11.

  The power supply circuit 12 is installed so as to supply power from the power line 6 to the PLC control circuit 10, the microcomputer 11, and the Ethernet (registered trademark) controller 13.

  The parent device 7 is provided with an ID management means (not shown) that manages the names of the child devices 8 and 9 and IDs that are unique identifiers for specifying the child devices 8 and 9.

  Further, the Ethernet (registered trademark) controller 13 and the hub 39 provided in the parent device 7 mediate between the microcomputer 11 and the modem / router 3 for transmitting and receiving data.

  The modem / router 3 has a DHCP (Dynamic Host Configuration Protocol) server function, and the microcomputer 11 has a DHCP client function. With these functions, the base unit 7 can acquire an IP (Internet Protocol) address.

  The microcomputer 11 has information on mail software (mailer) 24 corresponding to an e-mail creation means and a mail server 44 of an Internet provider. The operation content of each device 18, 19 connected to each child device 8, 9 is instructed by mail of the mobile phone 5. The e-mail E sent from the mobile phone 5 is stored in the mail box 46 of the mail server 44. The microcomputer 11 of the parent device 7 periodically checks the mail box 46. If the e-mail E has arrived, it will be received and the operation content to each apparatus 18 and 19 will be known. In the operation content, an ID (serial number) as information for specifying the child device 8 or the child device 9 and information on the control method are recorded, and the parent device 7 creates a control signal based on the information. The control signal is transmitted to the slave unit 8 and the slave unit 9 via the PLC control circuit 10 and the power line 6. The slave unit 8 and the slave unit 9 that have received the control signal confirm whether the control signal is addressed to themselves. If it is a control signal addressed to itself, the connected devices 18 and 19 are controlled based on the control method included in the control signal.

  The microcomputer 11 has an information input server function for inputting information of the mail server 44 and information of the devices 18 and 19. The information input server 25 having the information input server function is accessed by a PC (personal computer) 41. The PC 41 is connected to the hub 39 by a signal line 42. Information input software is installed in the PC 41, and the contents set by the software are transmitted to the information input server 25 of the microcomputer 11. FIG. 4 shows an input screen 43 of information input software displayed on the display of the PC 41. The information input software also displays an input screen other than that shown in FIG.

  FIG. 3 shows the configuration on the side of the slave units 8 and 9. In FIG. 3, a plurality of slave units 8 and 9 are connected to the power line 6 and have the same configuration as that incorporated in the master unit 7. The PLC control circuit 31 including the circuit 27, the coupling circuit 28, the transmission circuit 29, and the reception circuit 30 is controlled by a microcomputer 32 corresponding to control means, and power is supplied from the power line 6 to the PLC control circuit 31 and the microcomputer 32. It is the structure provided with the power circuit 23 installed in. Reference numeral 33 denotes an on / off switch which is an operation command means for issuing an on / off command to the devices 18 and 19 connected to the same slave units 8 and 9, and 34 is for setting a unique ID (serial number). These are ID setting devices, both of which are connected to the microcomputer 32. Further, the slave units 8 and 9 include an outlet 35 to which the plugs P of the subordinate devices 18 and 19 can be connected, and a relay 36 for connecting and disconnecting the power line 6A from the power line 6 to the outlet 35. The on / off operation is controlled by the microcomputer 32. Furthermore, the current value corresponding to the monitoring means that detects the current value flowing through the power supply line 6A of the slave units 8 and 9 as the current consumption of the electric devices 18 and 19 connected to the outlet 35 and supplies the detected value to the microcomputer 32. The unit 37 is provided. Further, a detection level setting means 38 for setting the detection level of the current value detected by the current detection unit 37 by, for example, a dial operation is provided. Moreover, the subunit | mobile_units 8 and 9 are provided with the memory | storage means (not shown) which memorize | stores various setting information, such as ID (serial number) and a detection level.

  When the operating state of the device 18 or 19 changes, a monitoring signal is transmitted from the child device 8 or the child device 9 toward the parent device 7. The monitoring signal is transmitted to the parent device 7 via the PLC control circuit 31 and the power line 6. The mail software 24 of the microcomputer 11 of the parent device 7 creates the electronic mail E by the fixed sentence creation means 26B based on the signal and the fixed sentence stored in the fixed sentence storage means 26A in advance. The created electronic mail E is transmitted from the microcomputer 11 to the mail server 44 of the internet provider. The mail server 44 distributes the electronic mail E to the mail server 45 of the telephone company of the mobile phone 5. The mail server 45 immediately transmits the received mail to the mobile phone 5.

  Each of the synchronization circuits 14 and 27 of the master unit 7 and the slave units 8 and 9 detects a zero-cross point of the AC power supply waveform and outputs a zero-cross detection signal to the microcomputers 11 and 32. Communication between the machine 7 and the slaves 8 and 9 is synchronized.

  Moreover, in the main | base station 7 and the subunit | mobile_unit 8, 9, as an access control method (carrier sense) of the power line 6 for confirming whether data are transmitting between the power lines 6 by mutual PLC control circuits 10 and 31, After confirming using CSMA / CA (Carrier Sense Multiple Access with Collision Avoidance) and confirming that there is no data being transmitted in the power line 6, the master unit 7 and the slave units 8 and 9 transmit data. It is configured.

  The modem / router 3 is connected to the base unit 7 via the hub 39 by a signal line 40 to form an Ethernet (Ethernet: registered trademark) environment. The modem / router 3 is connected to the Internet 4.

  Next, the operation of the above configuration will be described.

  First, in the power line carrier communication means (PLC) 2 of the present embodiment, the operator operates the ID setting unit 34 of the slave units 8 and 9 to set an ID (serial number) for each of the slave units 8 and 9. . When an on / off switch connected to the microcomputer 11 of the base unit 7 is operated, or when an on / off control signal from the mobile phone 5 is transmitted to the base unit 7, a set ID (serial number) is set. Address data and control data indicating ON or OFF are processed as a tone burst signal via the transmission circuit 16, and this tone burst signal is superimposed on the AC power supply waveform of the power line 6 via the coupling circuit 15. 8 and 9 are conveyed. On the side of the slave units 8 and 9, the microcomputer 32 reads the data via the coupling circuit 28 and the reception circuit 30, and the devices 18 and 19 subordinate to the slave units 8 and 9 having the ID (serial number) corresponding to the address data are The on / off control is performed by the operation of the relay 36.

  Next, transmission / reception of detection signals representing the state changes of the devices 18 and 19 by the power line carrier communication means 2 will be described with reference to the flowchart of FIG. For example, when communicating the state monitoring signals of the devices 18 and 19 when the power sources of the devices 18 and 19 are turned “ON to OFF” or “OFF to ON”, the current detection unit provided in the slave units 8 and 9 37 notifies the microcomputer 32 of changes in the state of the devices 18 and 19, and the microcomputer 32 creates a monitoring signal in which the IDs (serial numbers) of the corresponding slave units 8 and 9 and the states of the devices 18 and 19 are converted into data. Then, carrier sense is performed to confirm that data communication is not performed on the power line 6 (step S101). The monitoring signal is superimposed on the AC power waveform of the power line 6 and transmitted (step S102). The parent device 7 receives the monitoring signal (step S103). Again, carrier sense is performed to confirm that data communication is not performed on the power line 6 (step S104). Master unit 7 superimposes a response signal indicating that the monitoring signal has been received by slave units 8 and 9 on the AC power supply waveform of power line 6 and transmits it to slave units 8 and 9 (step S105). The corresponding slave units 8 and 9 receive (step S106), and the transmission / reception of the monitoring signal indicating the state change of the devices 18 and 19 by the power line carrier communication means 2 is completed.

  Here, the initial setting of Ethernet (registered trademark) will be described with reference to the flowchart of FIG. At the same time as the base unit 7 is connected to the power line 6, the DHCP client function is activated and acquires a private IP address from the DHCP server function of the modem / router 3 (step S201). When the information input software of the PC 41 is activated, broadcast (broadcast delivery) is performed to all devices connected to the Ethernet (registered trademark). As a result, the private IP addresses of all devices are acquired (step S202). An attempt is made to access the information input server 25 for each private IP address device, and when an accessible device is found, the device is identified as the parent device 7 (step S203). Then, various information is set while viewing the input screen 43 of the information input software displayed on the display of the PC 41 (step S204).

  Subsequently, a flow until the mobile phone 5 is notified of the monitoring signal indicating the state change of the devices 18 and 19 received by the parent device 7 via the Ethernet (registered trademark) and the Internet 4 is illustrated. This will be described with reference to the flowchart of FIG.

  The monitoring signal received by the main unit 7 is converted into standard text by the mail software 24 and the IDs of the sub units 8 and 9 and the on / off control data of the devices 18 and 19 are converted into the fixed text. Entered. Further, together with the subject of the email E set at the initial setting of Ethernet (Ethernet) and the mail address of the mobile phone 5 set at the time of the initial setting, the email software 24 converts the data into the email E Is done. Then, the electronic mail E is transmitted to the mail server 44 of the internet provider (step S301). The electronic mail E is received by the provider's mail server 44 (step S302), and then delivered from the provider's mail server 44 to the telephone company's mail server 45 of the mobile phone 5 (step S304). The telephone company mail server 45 delivers the electronic mail E to the mobile phone 5 (step S305). Then, the cellular phone 5 receives the email E (step S306). FIG. 8 to FIG. 9 show an e-mail E with contents indicating the state change of the devices 18 and 19 received by the operator. FIG. 8 is a screen on which the subject of the e-mail E is displayed, and the subject “HMS XX home notification” is the subject of the e-mail E input to the information input server 25 at the initial setting. . Here, for example, it is assumed that the name of the operator comes to “XX”.

  FIG. 9 is a screen on which the text of the e-mail E is displayed, and “L lighting ON” is included in the text. Here, “L” is the ID (serial number) of each of the slave units 8 and 9. Based on, for example, one of the letters A to Z assigned to each of the devices 18 and 19, it is a unique name of each of the devices 18 and 19 set at the time of initial setting (see FIG. 4). “Lighting” is input to the memo of this name “L” at the time of initial setting (see FIG. 4), and represents what kind of device “L” is specifically. The memo “illumination” and the name “L” have a one-to-one relationship, and are represented by, for example, 8 full-width characters. “ON” represents the state of the devices 18 and 19. In this case, the state change of the devices 18 and 19 is turned on from off, and the state change of the devices 18 and 19 is turned on from off. Is written as “OFF”.

  Next, a flow in which the operator operates the devices 18 and 19 by transmitting the electronic mail E from the mobile phone 5 will be described with reference to the flowcharts of FIGS.

  First, an operation flow of the cellular phone 5 by the operator will be described with reference to FIGS. Select the mail address of the main unit 7 from the address book of the mobile phone 5 (step S401), enter it as the destination address (steps S402, 403), and enter the password "XXXXX" as the subject on the mail edit screen ( Steps S404 to 407) Finally, when the device 18 is turned off at the time of text creation (Step S408), only the name “L” of the device 18 is input to the text (Steps S409 and S410), and the device 18 is turned on. To do so, “. (Period)” is input after the name “L” of the device 18 in the body (steps S411 and S412), and the e-mail E is transmitted (step S413). Thereafter, the operation result arrives from the parent device 7 by an electronic mail E (step S414). When the device 18 is turned off, the body text of the e-mail E from the parent device 7 is “L illumination OFF” (step S415). When the device 18 is turned on, the body text of the e-mail E from the parent device 7 is “ L illumination ON "(step S416).

  Subsequently, the flow from when the operator sends an e-mail E as a control signal from the mobile phone 5 until the operation result of the devices 18 and 19 connected to the power line carrier communication means 2 arrives will be described with reference to FIG. To do.

  First, the e-mail E created in the above-described steps S401 to S412 is transmitted to the mail server 44 of the Internet provider (step S501). Since the mail server 45 of the telephone company of the mobile phone 5 mediates it, the electronic mail E is delivered to the mail server 44 of the Internet provider (step S502). The e-mail E is stored in the mail box 46 of the mail server 44 of the Internet provider (step S503). The base unit 7 continues to check periodically whether the e-mail E has arrived in the mailbox 46, and receives the e-mail E if it has arrived. Moreover, since the e-mail E remains in the mail box 46 only by that, the e-mail E is deleted from the mail box 46 (step S504). The microcomputer 11 converts the control information described in the electronic mail E into a control signal and transmits it to the slave unit 8 and the slave unit 9 via the power line 6 (step S505). The subunit | mobile_unit 8 or the subunit | mobile_unit 9 controls electricity supply to the apparatus 18 or the apparatus 19 according to a control signal (step S506). If the current consumption of the device 18 or the device 19 changes accordingly, it is detected by the current detection unit 37 (step S507). The state change is notified to the parent device 7 by the child device 8 or the child device 9 (step S508). A monitoring signal is used for the notification. The microcomputer 11 of the parent device 7 creates an electronic mail E based on the monitoring signal and the standard text stored in the standard text storage means 26A, and transmits the electronic mail E to the mobile phone 5 (step S509). ). Since the mail server 44 of the internet provider mediates it, the electronic mail E is distributed to the mail server 45 of the telephone company of the mobile phone 5 (step S510). The mail server 45 of the mobile phone 5 immediately transmits the e-mail E to the mobile phone 5 (step S511). The mobile phone 5 receives the electronic mail E (step S512), and the operation is completed.

  As described above, in the above embodiment, corresponding to claim 1, the power line carrier communication means 2 transmits the monitoring signal and the control signal to the power line 6 and monitors and controls the devices 18 and 19 connected to the power line 6. And the relay device 3 for connecting the power line carrier communication means 2 and the external network 4, and the monitoring signal and the control signal can be transmitted / received to / from the power line carrier communication means 2 via the external network 4 and the relay device 3. The power line carrier communication means 2 is connected to the master unit 7 connected to the power line 6, the devices 18, 19 and the power line 6, and monitors the operation of the devices 18, 19. The monitoring unit 37 and the devices 18 and 19 include a slave unit 8 and 9 including a relay 36 that constitutes a control unit together with the control unit 32, and the master unit 7 includes the monitoring unit from the slave units 8 and 9. A signal processing means 11 for transmitting a signal to the control terminal 5 via the external network 4 and transmitting the control signal received from the control terminal 5 via the external network 4 to the power line 6; Since the power line carrier communication means 2 is used for monitoring and controlling the devices 18 and 19, since the existing power line 6 can be used for wiring, it can be easily installed at low cost. In addition, since the base unit 7 includes the signal processing means 11 that enables data exchange with the external network 4, the base unit 7 and the slave units 8 and 9 can be connected to each other in a facility that can communicate with the external network 4. Since the home security system is constructed simply by connecting to the power line 6, the wiring can be simplified and the installation can be further facilitated.

  Further, the above embodiment corresponds to claim 2, and the signal processing means 11 is provided with an e-mail creating means 24 for creating an e-mail E based on the monitoring signal, so that a monitoring signal with the control terminal 5 can be obtained. Since the control signal is transmitted and received by the electronic mail system, the communication means of the existing network 4 can be used, and the operability and versatility can be improved.

  Further, the above embodiment corresponds to claim 3, and the e-mail creating means 24 is provided with a fixed sentence creating means 26B for creating the e-mail E according to a pre-registered fixed sentence. The operator of the terminal 5 can confirm the state change of the devices 18 and 19 with a fixed sentence.

  Further, the embodiment described above corresponds to claim 5 and is a control method in the home security system 1, wherein the monitoring means 37 detects the state change of the devices 18 and 19 connected to the slave units 8 and 9. By transmitting the detection signal to the base unit 7 at the detected stage, it becomes possible to notify the control terminal 5 of the state changes of the devices 18 and 19 in real time.

  Further, the above embodiment corresponds to claim 6, and the base unit 7 receives the control signal transmitted from the control terminal 5 by accessing the server 44 of the external network 4, thereby controlling the base unit 7. A control signal from the terminal 5 is transmitted to the parent device 7 via the external network 4, and the devices 18 and 19 are reliably controlled.

  Next, a second embodiment of the home security system according to the present invention will be described with reference to FIGS. Note that portions corresponding to those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  In this embodiment, in the configuration described in the first embodiment, the slave unit 50 is connected to the power line 6 separately from the slave units 8 and 9, and has the same configuration as the slave units 8 and 9 as shown in FIG. Are connected by a connection cable 70, which will be described later, to a receiving device 55 configured to be able to receive detection signals from security sensors 53 and 54 as detection means arranged in the window 52 of the building 51. Here, the security sensors 53 and 54 are not limited to the window portion 52 but may be disposed in an opening portion of the building 51 such as a door portion or a ventilation duct (not shown) of the building 51.

  FIG. 14 shows an example of the configuration of the window portion 52. The window portion 52 is configured to include a pair of sliding door type windows 58 and 59 on a window frame 57 disposed on the wall surface 56 of the building 50.

  The window 52 includes a magnet sensor 53 (magnet sensor) 53 as a first security sensor and a strain sensor 54 as a second security sensor.

  The magnet sensor 53 includes a sensor main body 60 disposed on a wall surface 56 around the window frame 57 and a magnet (permanent magnet) 61 that is a magnetic member disposed on the window body 58.

  FIG. 15 shows an example of an electrical configuration of the magnet sensor 53, the strain sensor 54, and the receiving device 55. The sensor body 60 of the magnet sensor 53 includes a reed switch 62, a control unit 63, a first wireless transmission unit 64, and the like. It has.

  The strain sensor 54 includes a strain detection unit 65, a control unit 66, and a second wireless transmission unit 67. Here, as a power source (not shown) of the magnet sensor 53 and the strain sensor 54, various batteries such as a button battery, a commercial power source, and the like are used.

  Further, the receiving device 55 includes wireless receiving means 68 and control means 69.

  Here, the receiving device 55 is provided with a connection cable 70 such as a four-core cable provided directly from the outline of the receiving device 55, and a plug having, for example, a 4-pin structure provided at the tip of the connection cable. The receiving device 55 and the slave unit 50 can be connected by inserting a connection terminal 71 such as a jack into a connection receiving unit (not shown) such as a jack provided in the slave unit 50. .

  Here, the communication of the first wireless transmission unit 64, the second wireless transmission unit 67, and the wireless reception unit 68 may be executed based on a communication standard such as IEEE 802.15.4.

  Next, the operation for detecting the open / closed state of the window 52 using the magnet sensor 53 will be described first. When the window 52 is closed, the magnet 61 and the sensor main body 60 are close to each other. Therefore, in the reed switch 62 provided in the sensor main body 60, the magnetism of the magnet 61 within the detectable range of the reed switch 62. Is detected, and a state where the window 52 is closed (hereinafter referred to as a closed state) is detected.

  When the window 52 is opened and the window 58 provided with the magnet 61 is moved away from the sensor body 60, the magnet 61 is out of the detectable range of the reed switch 62 and the window 52 is opened. (Hereinafter referred to as an open state) is detected.

  When the control unit 63 of the sensor main body 60 detects the open state of the window portion 52, the control unit 63 transmits an open state detection signal to the outside through the first wireless transmission unit 64 by radio waves.

  Next, the state detection operation of the window 52 using the strain sensor 54 will be described. When pressure is applied to the window body 59 of the window portion 52, the strain sensor 54 detects distortion (deformation) of the window portion 52 caused by the pressure by the strain detection means 65. When detecting the distortion of the window 52, the control means 69 of the strain sensor 54 transmits a distortion detection signal to the outside through the second wireless transmission means 67 by radio waves.

  Here, in the control means 69 on the receiving device 55 side, the connection cable 70 is connected to the slave unit 50 side for the open state detection signal from the magnet sensor 53 and the distortion detection signal from the distortion sensor 54 received via the wireless receiving means 68. Send through. The slave unit 50 superimposes an open state detection signal or distortion detection signal as a monitoring signal on the AC power supply waveform of the power line 6 and transmits it to the master unit 7.

  Subsequently, the flow until the monitoring signal indicating the state change of the window 52 received by the base unit 7 is notified to the mobile phone 5 via the Ethernet (Ethernet: registered trademark) and the Internet 4 is shown in FIG. This will be described with reference to a flowchart.

  The monitoring signal received by the base unit 7 is distorted in the window 52 due to the presence of an intruder or the presence of an intruder that the ID of the handset 50 and the open state of the window 52 are detected by the mail software 24. It is converted into a fixed phrase preliminarily stored in the fixed phrase storage means 26A such as “abnormal” indicating that an abnormality has been detected, and is input to the body of the e-mail E. Further, together with the subject of the email E set at the initial setting of Ethernet (Ethernet) and the mail address of the mobile phone 5 set at the time of the initial setting, the email software 24 converts the data into the email E Is done. Then, the electronic mail E is transmitted to the mail server 44 of the internet provider (step S301). The electronic mail E is received by the provider's mail server 44 (step S302), and then delivered from the provider's mail server 44 to the telephone company's mail server 45 of the mobile phone 5 (step S304). The telephone company mail server 45 delivers the electronic mail E to the mobile phone 5 (step S305). Then, the cellular phone 5 receives the email E (step S306).

  FIG. 16 is an example of a screen on which the text of the e-mail E is displayed. “W” indicates that there is an intruder in the window, where “W” is the ID (serial number) of the slave unit 50. ) Is a unique name of the device 55 set at the time of initial setting (see FIG. 17), for example, in which any one of letters A to Z is assigned to each of the devices 18, 19, and 55. The “window” is input to the memo with the name “W” at the time of initial setting (see FIG. 17), and indicates what kind of device this “W” is. There is a one-to-one relationship between the memo “window” and the name “W”, and is represented by, for example, 8 full-width characters. “There is an intruder” is a fixed phrase representing the state of the window 52.

  By executing the first wireless transmission unit, the second wireless transmission unit, and the wireless reception unit based on a communication standard such as IEEE802.5.4, wireless communication with low power consumption and low cost is possible.

  As described above, in the present embodiment, corresponding to claim 4, the magnet sensor 53 and the strain sensor 54 as detection means for detecting the state of the opening portion of the building 51 such as the window portion 52 and the door portion, the magnet sensor 53 and A first wireless transmission means 64 and a second wireless transmission means 67 as wireless transmission means for transmitting an open state detection signal or a distortion detection signal as a detection signal from the strain sensor 54 as a wireless radio wave as a wireless signal; The receiving device 55, which is a device, is provided with wireless receiving means 68 for receiving wireless radio waves. In this case, since the state of the window 52 of the building 51 can be confirmed from the mobile phone 5 as the control terminal, it is possible to easily grasp abnormalities such as the intrusion of the suspicious person into the building 51 and the destruction of the window 52. Since it is possible to avoid dangers such as matching with a suspicious person who has entered the building 51 when returning home, the usability of the security system is improved.

  18 and 19 show a modified embodiment of the home security system of the present invention. In the home security system described in the first embodiment, various electronic devices 80 and 81 having infrared receiving means (not shown) are provided. , 82 for storing identification information, and control means 84 for turning on / off various electronic devices 80, 81, 82 based on the identification information stored in the identification information storage unit 83, An infrared communication type remote controller 86 provided with infrared transmission means 85 capable of transmitting a control signal from the control means 84 to the outside as infrared rays is connected to the slave unit 87 of the PLC 2. In addition, an electronic device 89 as an electric heating device such as a stove is connected to another child device 88 by a plug P. The slave units 87 and 88 have the same configuration as that of the slave units 8, 9, and 50 (see FIG. 3), and are the same as those in the first embodiment except for the configuration described above. The detailed explanation is omitted.

  Here, FIG. 18 illustrates a television 80, an electric lamp 81, and an air conditioner 82 as various electronic devices. However, electronic devices that are on / off controlled by the remote controller 86 are not limited thereto. Further, the remote controller 86 includes a connection cable 90 such as a four-core cable provided directly from the outer periphery of the remote controller 86, and a connection such as a plug of a four-pin structure provided at the tip of the connection cable 88 is provided. The terminal 91 is inserted into a connection receiving portion (not shown) such as a jack provided in the slave unit 87, so that the remote controller 86 and the slave unit 87 can be connected.

  FIG. 20 shows another modified embodiment of the present invention. In the home security system described in the second example, a CMOS image sensor {or CMOS image sensor (Seamos) disposed on a ceiling or the like in a building 51 is provided. When a camera device 100 such as a high-speed camera, which is a device having an image sensor)} and a human sensor (both not shown) is connected to the slave device 101 of the PLC 2, and the camera device 100 senses an abnormality such as human body sensing In addition, a still image captured by the camera device 100 at that timing is attached to the mail E and transmitted. Here, the slave unit 101 has the same configuration as the slave units 8, 9, 50, 87, and 88 (see FIG. 3). The detailed description about is omitted. The CMOS image sensor {or CMOS image sensor (Seamos image sensor)} is a solid-state imaging device using CMOS (complementary metal oxide semiconductor). Further, the human sensor is not limited to those listed in the security sensor described later.

  The camera device 100 includes a connection cable 102 such as a four-core cable that is provided directly out of the outline of the camera device 100, and a connector having a 6-pin structure provided at the tip of the connection cable 102, for example. By connecting the connection terminal 103 to a connection receiving portion (not shown) corresponding to the connection terminal 103, the camera apparatus 100 and the slave unit 101 can be connected to each other.

  In addition, the camera apparatus 100 may have an image storage function that captures still images at regular time intervals and stores the still images in storage means (not shown) provided in the parent device 7. Here, the microcomputer 11 provided in the parent device 7 includes image data writing means for writing still image data stored in the storage means to a recording medium detachable from the parent device 7. The still image data photographed by 100 can be recorded on a recording medium and taken out. Further, the storage means itself may be a recording medium that can be attached to and detached from the master unit 7. Here, the master unit 7 includes a recording medium interface (not shown), and still image data is transferred to a removable recording medium that is attached to the master unit 7 while connected to the interface. Record. Here, examples of the removable recording medium include so-called removable media that can be attached to other electronic devices and portable terminals such as a portable information terminal PDA and a portable notebook PC. For example, an SD card (Secure Digital Memory Card) is available. ), Compact flash (registered trademark) card, smart media card, multimedia card (MMC: Multi Media Card), memory stick card, PC card, and other card-type semiconductor memory cards and USB transmission type removable hard disks Etc. Here, writing to the recording medium may be performed in synchronization with recording to the storage means, or may be appropriately performed by an operation from an operation means (not shown) such as a switch provided on the base unit 7 side. There is no particular limitation.

  In this way, an intruder into the building 51 is sensed by a CMOS image sensor or a human sensor, the situation is photographed as a still image by the camera device 100, and the image data is captured by the slave device 101 to which the camera device 100 is connected. Is transmitted as a monitoring signal to the base unit 7 from the power line 6 to the e-mail E to notify an abnormality such as an intruder into the building 51 created by the base unit 7 based on the monitoring signal. Data is attached and transmitted to the control terminal 5 of the operator. In this modified embodiment, it is also possible to include a follow-up photographing unit that causes a photographing lens (not shown) to operate in accordance with the operation of a subject to be photographed (here, a human body). Further, the various sensors for detecting the human body provided in the camera apparatus 100 are not limited to the CMOS image sensor and the human sensor, and the combination of the various sensors can be appropriately changed.

  The present invention is not limited to the above embodiments, and the technical contents of the above embodiments may be combined as appropriate. The electronic device connected to the slave units 8 and 9 may be a high-speed video camera (see FIG. 20). Further, the device 18 is connected to the slave unit 8 by a plug P, and has a remote control provided with infrared transmission means capable of transmitting on / off control signals as infrared rays, and an infrared ray capable of receiving control signals as infrared rays from the remote control. For example, the device 19 is an electronic device such as a television set directly connected to the slave unit 9 by a plug P. These electronic devices are not limited to stereos and televisions, and can be changed as appropriate. Further, in each of the above embodiments, a mobile phone has been described as an example of the control terminal 5, but various information terminals such as a PC, a PDA, and a car navigation system may be used instead of the mobile phone. Further, in the above embodiment, the on / off control of the devices 18 and 19 has been described. However, when the current detection unit 37 detects a current value exceeding the set value of the detection level setting means 38, this is detected. The master unit 7 transmits a monitoring signal regarding the abnormal current of the devices 18 and 19 to the control terminal 5 by e-mail E, receives the monitoring signal, and the operator 5 may transmit a control signal for turning off the power of the devices 18 and 19 to the parent device 7 by the electronic mail E to control the devices 18 and 19 to be turned off. Further, in the slave units 8, 9, 50, 87, 88, 101, a triac (semiconductor switch element) may be used instead of the relay 36. Furthermore, the crime prevention sensor is not limited to the magnet sensor 53 and the strain sensor 54 described above, and a vibration sensor that detects vibrations of the window 52 and the door of the building 51 to detect abnormalities of the window 52 and the door. Or an infrared sensor that detects an intruder from the window 52 or door by detecting infrared rays of the surrounding human body such as the window 52 or door, and the actual combination of security sensors is The present invention is not limited to the combination of the magnet sensor 53 and the strain sensor 54 as described in the second embodiment, and can be changed as appropriate, for example, the combination of the strain sensor 54 and the vibration sensor. Further, the security sensors such as the vibration sensor and the infrared sensor correspond to the detection means corresponding to the magnet 61, the reed switch 62, and the distortion detection means 65, and the control means 63, 66 like the magnet sensor 53 and the distortion sensor 54. A control unit and a wireless transmission unit corresponding to the first wireless transmission unit 64 and the second wireless transmission unit 67 are provided. Further, the configuration of the magnet sensor 53, the strain sensor 54, and the receiving device 55 is not limited to the configuration shown in FIG. 15, and can be changed as appropriate. Further, when the security sensors 53 and 54 detect an abnormality in the opening of the window 51 or the door of the building 51, the window in which the abnormality is detected by a photographing device such as a high-speed video camera connected to another slave unit. 52, a door part, etc. are imaged, and the video data may be attached to the e-mail E as a monitoring signal. Further, as a modulation method of the power line carrier adopted in each of the PLC control circuits 10 and 31 of the master unit 7 and the slave units 9, 10, 50, 87, 88, 101, orthogonal frequency division multiplexing {OFDM (Orthogonal Frequency Division Multiplexing) )} Transmission method (hereinafter referred to as OFDM transmission method), spread spectrum {SS (Spread Spectrum)} modulation method (hereinafter referred to as SS modulation method), etc. It is preferable that an optimum method can be selected from the above methods according to noise. For example, it is preferable to employ an OFDM transmission scheme that enables high-speed communication when the power line 6 is low in noise, and to employ a highly noise-resistant SS modulation scheme when the power line 6 is high in noise. . In this case, when the modulation method of the power line carrier adopted in each PLC control circuit 10, 31 is an OFDM transmission method that enables high-speed communication, the devices 18, 19, 55, 80, 81, 82, which are electronic devices, When not only the control signals and monitoring signals of 88 and 100, but also high-speed data communication such as video data from a high-speed video camera, etc., and the SS modulation method with high noise resistance, Reliability of transmission of control signals and monitoring signals on the power line 6 can be ensured. In addition, the communication standards of the first wireless transmission unit 64, the second wireless transmission unit 67, and the wireless reception unit 68 are not limited to the above-mentioned IEEE 802.15.4, and can be changed as appropriate. Further, the configuration of the connection cables 70 and 90 and the connection structure (for example, the connection terminals 71 and 91) between the connection cables 70 and 90 and the slave units 87 and 101 are not limited to the above-described embodiment, and are appropriately changed. Is possible.

1 is an overall view of a home control system showing a first embodiment of the present invention. FIG. 3 is a block diagram on the base unit side. FIG. 2 is a block diagram on the slave unit side. It is an initial setting screen as above. It is a flowchart figure about transmission / reception of the detection signal showing the state change of the apparatus by a power line carrier communication means same as the above. FIG. 4 is a flowchart for initial setting of Ethernet (registered trademark). FIG. 5 is a flowchart illustrating a flow until the monitoring signal indicating a change in the state of the device received by the parent device is notified to the mobile phone via Ethernet (Ethernet: registered trademark) and the Internet. It is a figure which shows the screen as which the subject of the electronic mail E was displayed in the electronic mail of the content which shows the state change of the apparatus which the operator received same as the above. FIG. 11 is a diagram showing a screen of the body of the e-mail in the e-mail with contents indicating the change in the state of the device received by the operator. It is a figure which shows the flow of operation of an operator's mobile telephone 5 same as the above. FIG. 11 is a diagram illustrating a flow of operations of the operator's cellular phone, following FIG. 10. FIG. 12 is a diagram illustrating a flow of operation of the operator's mobile phone following FIG. 11. FIG. 5 is a flowchart showing the operation flow of the device connected to the power line carrier communication by sending an e-mail E as a control signal from the mobile phone. It is a general view of a home control system showing a second embodiment of the present invention. It is a block diagram which shows the structure of a magnet sensor, a distortion sensor, and a receiver same as the above. FIG. 5 is a diagram showing a screen of the body of the e-mail in the e-mail with contents indicating the change in the state of the device received by the operator. It is an initial setting screen as above. FIG. 2 is an overall view showing a modified embodiment of the home security system of the present invention. It is a block diagram which shows the structure of the remote control in FIG. 18 same as the above. FIG. 6 is an overall view showing another modified embodiment of the home security system of the present invention.

Explanation of symbols

1 Home security system 2 Power line carrier communication means (PLC)
3 router (relay device)
4 Internet (external network)
5 Mobile phone (control terminal)
6 Power line 7 Master unit 8, 9, 50, 87, 88, 101 Slave unit 11 Microcomputer (signal processing means)
18, 19, 55, 80, 81, 82, 88, 100 Equipment 24 Mailer (E-mail creation means)
26B boilerplate creation means 32 microcomputer (control means)
37 Current detector (monitoring means)
39 Hub (relay device)
51 Building 52 Window 53 Magnet Sensor (Detection Means)
54 Strain sensor (detection means)
64 1st wireless transmission means 67 2nd wireless transmission means 68 Wireless reception means

Claims (6)

A power line carrier communication means for transmitting a monitoring signal and a control signal to the power line, and monitoring and controlling a device connected to the power line;
A relay device for connecting the power line carrier communication means and an external network;
Via the external network and the relay device, the power line carrier communication means and a control terminal capable of transmitting and receiving the monitoring signal and the control signal,
The power line carrier communication means includes a master unit connected to the power line,
A slave unit connected to the device and the power line, comprising a monitoring unit for monitoring the operation of the device and a control unit for controlling the device;
The master unit transmits the monitoring signal from the slave unit to the control terminal via the external network and transmits the control signal received from the control terminal via the external network to the power line. A home security system comprising a processing means. The home security system according to claim 1, wherein the signal processing unit includes an e-mail creating unit that creates an e-mail based on the monitoring signal. 3. The home security system according to claim 2, wherein the e-mail creating unit includes a fixed-sentence creating unit that creates the e-mail according to a pre-registered standard sentence. Detection means for detecting the state of an opening such as a window or a door of a building;
Wireless transmission means for transmitting a detection signal from the detection means as a wireless signal,
The home security system according to any one of claims 1 to 3, wherein the device includes wireless reception means for receiving the wireless signal. It is the control method in the home security system of Claims 1-4,
The method of controlling a home security system, wherein the monitoring unit transmits the detection signal to the parent device when detecting a change in the state of the device connected to the child device. 6. The home security system control method according to claim 5, wherein the base unit receives the control signal transmitted from the control terminal by accessing a server of the external network.

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