JP3969665B2 - Wireless monitoring system - Google Patents

Description

The present invention relates to a wireless monitoring system that constitutes a residential security system using wireless communication.

  2. Description of the Related Art Conventionally, a wireless monitoring system is known that transmits abnormality detection information such as theft or fire detected by a detector wirelessly, and receives the abnormality detection information via a repeater or directly by a receiver for alarming.

  In such a radio alarm system, since transmission is performed based on a pseudo-randomized delay time from the information table, the same radio signal from the repeater at the same time as the radio signal from the radio transmitter on the receiver side Even if it is in a receivable state, the wireless signal from the wireless transmitter and the repeater can be reliably decoded by the receiver without causing reception failure.

  Also, in recent years, it is not a one-way communication that simply transmits a detection signal, but a function check is performed from the receiver side, the indicator light is turned on, etc. A remote control system has also been introduced.

  Furthermore, conventional wireless monitoring systems are installed in ordinary households as equipment for realizing security services provided by security companies, and when an abnormality is received by a receiver, the service center of the security company is automatically dialed. The service center automatically reports by function, and the service center that receives the report dispatches a staff member to the abnormal reporting unit to take necessary actions.

In this case, in order to make it easy for the staff members who went to the site to check the dwelling unit that made the automatic report, install an outdoor indicator outside the dwelling unit where the wireless monitoring system is installed, and turn it on. I have to.
JP-A-4-340195

  However, in such a conventional wireless alarm system, when installed in a dwelling unit, the sensor is operated to perform a test operation, a detection signal is transmitted, and it is confirmed that the signal is normally received by the receiver. In this test operation, it is confirmed that the terminal side operates by sending a control signal to the terminal side, but after that, there will be a situation where wireless communication is not normally performed between devices constituting the system during operation There is.

  This is because the operation is confirmed by performing wireless communication between system devices by test operation, but it is because it is not confirmed how much reception intensity is actually obtained, for example, to the limit that can be received normally Even if the reception strength is close, it is normal because the operation has been confirmed. As a result, there is a risk that the reception will become impossible due to changes in the communication environment such as opening and closing of doors and the passage of people in the room and it will not function normally. is there.

  In addition, when a wireless monitoring system is installed in each dwelling unit of a housing complex, it may cause a collision due to reception of radio waves from devices installed in other dwelling units, making it impossible to communicate normally. It is done.

An object of the present invention is to provide a wireless monitoring system that can easily and reliably perform installation adjustment by monitoring the reception state of radio waves in the wireless monitoring system.

In order to achieve this object, the present invention is configured as follows. The present invention relates to a sensor terminal that detects abnormality such as theft or fire and wirelessly transmits an abnormality detection signal, a control terminal device that receives a wireless control signal and is remotely controlled, and an abnormality detection signal from the sensor terminal. A monitoring device that receives and processes alarms and transmits a control signal to the control terminal device for remote control; and one or more relays that relay transmission signals between the sensor terminal and the control terminal device and the monitoring device. In the wireless monitoring system provided,
Control terminal device
An identifier registration unit for registering an identifier (ID) of a system component device;
When a signal is received from another device including the system component device, the identifier included in the received signal is compared with the registered identifier of the identifier registration unit, and the received signal is processed if they match, and the received signal if they do not match A monitoring processing unit for discarding
When setting all reception mode, all reception mode processing unit that receives all signals including an identifier that does not match the registered identifier and stores reception information;
Is provided.

  Here, the all reception mode processing unit outputs received information stored in response to a read request from an externally connected monitor device, and displays it on a monitor.

  Also, the present invention transmits an uplink signal including a reception strength monitor signal indicating a degree of reception strength of the uplink signal when relaying the uplink signal transmitted from the control terminal device to the repeater in the radio monitoring system. A reception strength notification unit is provided, and the monitoring device includes a reception strength monitor unit that extracts and stores a reception strength code signal included in an uplink signal received from the repeater.

  Here, the reception intensity monitor signal is a code signal indicating that the reception intensity is strong, medium, weak, or no relay. The uplink signal including the reception intensity monitor signal is a periodic notification signal transmitted from the control terminal device at predetermined time intervals.

Furthermore, the control terminal device is, for example, an outdoor display device that is driven by a battery power source and receives a lighting control signal from the outside and lights an indicator lamp.

  According to the present invention, when the all reception mode is set in the monitoring device, it is possible to receive radio waves from devices installed in other nearby dwelling units that do not match the registration ID, and store the reception information. Receiving information saved in the mode can be read and displayed by attaching an appropriate monitor device, so that the radio monitoring system can understand the radio wave congestion and install and adjust the device at a position that is not easily affected by radio waves from other dwelling units. By doing so, it is possible to prevent communication failure due to collision with signals from other dwelling units.

  In addition, when an uplink signal transmitted from a specific device is relayed, the uplink signal from the repeater is transmitted by setting and transmitting a reception strength monitor signal indicating the degree of reception strength when relaying by the repeater. By storing the received intensity monitor signal included in the upstream signal with the monitoring device that received the received intensity monitor signal received and stored in the test operation at the time of system installation by externally connecting an appropriate monitor device, It is possible to easily confirm at what reception intensity the sensor terminal or the control terminal device receives the signal from the repeater.

Also, the monitor content of the reception intensity is a simple display such as strong, medium, weak, or no relay. For example, if the reception intensity is medium or weak, adjust the installation location of the equipment to make it strong. In addition to confirming the operation by the test operation, checking the reception strength to be relayed ensures that even if there is a change in the communication environment during operation, it will surely prevent a situation where communication is impossible. This can increase the reliability of the wireless monitoring system.

  FIG. 1 is an explanatory diagram of a wireless monitoring system according to the present invention installed in a dwelling unit of an apartment house. In FIG. 1, this embodiment takes the dwelling units 1A and 1B in the collective dwelling unit as an example. In the dwelling unit 1A, a wireless monitoring device 2 that functions as a receiver is installed. The wireless monitoring device 2 is connected to the notification device 3, and when an abnormality is detected, the notification device 3 notifies the abnormality from the monitoring center via the communication line 4. In response to an abnormality report, a lighting control message is transmitted wirelessly in response to a lighting control instruction for a warning lamp installed outdoors from the monitoring center.

  Moreover, the wireless fire sensor 5 and the wireless contact sensor 7 are installed in the dwelling unit 1A as sensor terminals. The wireless fire sensor 5 is a heat sensor or smoke sensor provided with a transmission function, and transmits a fire detection message when a fire is detected.

  A magnet switch 8 is connected to the wireless contact sensor 7, the magnet switch 8 is installed inside the window, and a magnet 9 is fixed on the window side facing the magnet switch 8. When the window is closed, the magnet switch 8 is turned on under the magnetic force of the magnet 9, and when the window is opened, the magnetic field from the magnet 9 is lost and the magnet switch 8 is turned off. Send an error detection message.

  A wireless outdoor display device 10 is installed as a control terminal device outdoors facing the corridor on the right side of the dwelling unit 1A. The wireless outdoor display device 10 is driven by a built-in battery, and includes a warning light 11 using a transmission / reception function and a plurality of LEDs.

  In this way, each device constituting the wireless monitoring system installed in the dwelling unit 1A is previously set with a unique ID code as an identifier by writing to the nonvolatile memory. For example, the wireless monitoring device 2 is ID1, wireless repeater 12- ID 1 is set for ID 1, ID 3 for the wireless repeater 12-2, ID 4 for the wireless outdoor display device 10, ID 5 and ID 6 for the wireless monitoring sensor, and ID 7 for the wireless contact sensor 7.

  The wireless monitoring device 2 transmits an ID request message to the system configuration device in an initialization process at the time of system startup upon power-on, receives an ID response message from each device, and configures the system configuration in the wireless monitoring device 2 Device IDs 1 to 7 are registered in advance.

  The registration ID of the wireless monitoring device 2 is compared with the ID of the transmission source included in the received message and the registered ID registered in advance when the message is received from the system component device during system operation. If the received message ID matches, the received message is processed as a valid message.

  For this reason, even if a message is received from a system device that is not registered in the wireless monitoring device 2, for example, installed in another dwelling unit 1B, the received message ID does not match the registered ID. The message will be discarded.

  Even in the dwelling unit 1B, a wireless monitoring system is installed. The wireless monitoring system of the dwelling unit 1B includes a wireless monitoring device 2, a notification device 3, a wireless fire sensor 5, a wireless human body sensor 6, a wireless contact sensor 7, and a warning indicator light 11. The wireless outdoor display device 10 and the wireless repeater 12 are provided.

  For the system equipment installed in the dwelling unit 1B, a unique ID code different from that of the dwelling unit 1A is set in advance by writing in the nonvolatile memory. The wireless monitoring device 2 of the dwelling unit 1B The ID of each system device is collected and registered in the initialization process, and the received message from the operating system device is processed as valid only when the received message ID matches the registered ID. Yes.

  When the wireless monitoring system of the present invention is installed in the adjacent dwelling units 1A and 1B, for example, when looking at the dwelling unit 1A, the dwelling unit 1A is used for the wireless monitoring device 2 installed in the dwelling unit 1A. In addition to the radio waves from the internal system devices, the radio waves from the system devices installed in the adjacent dwelling unit 1B also arrive as shown by the broken line, and depending on the propagation situation, the reception intensity that can be effectively received by the wireless monitoring device 2 In some cases, radio waves from the wireless monitoring system of the dwelling unit 1B are received.

  However, in the wireless monitoring device 2 of the dwelling unit 1A, ID2 to ID7, which are its own system devices, are registered, and for received messages, only messages having IDs that match the registered ID are processed as valid. Even if a message is received from the system device of the dwelling unit 1B, the message from the dwelling unit 1B is discarded because it does not match the registration ID, and the message of the dwelling unit 1B is not processed by mistake.

  In addition, in the wireless monitoring device 2 of the dwelling unit 1A, for example, when it is desired to simultaneously receive radio waves from its own system device and radio waves from other system devices of the dwelling unit 1B, the channel used by the dwelling unit 1A and the dwelling unit 1B is usually used. Since they are on the same channel, they are received in a state where two radio waves collide, and there is a possibility that the reception level temporarily decreases due to the collision, and reception becomes impossible.

  For the occurrence of communication failures due to collisions with radio waves from other dwelling units, the state of radio waves from dwelling unit 1B is determined at the time of system installation, and wireless communication is performed in a place that is not easily affected by radio waves from other dwelling units. If appropriate measures such as installing the monitoring device 2 are taken, it is possible to avoid a communication failure due to a collision caused by radio waves from other dwelling units.

  In the wireless monitoring system of the present invention, in the normal operation state, the wireless monitoring device 2 processes only a message having an ID that matches the registered ID as a valid message. When the all reception mode is set by an operation such as the above, a function for receiving and storing a message having an ID that does not match the registered ID as a valid message is newly provided.

  For this reason, by setting the wireless monitoring device 2 to the all reception mode, in addition to the radio wave from the own system device, the radio wave from the system device of the adjacent dwelling unit 1B is also used regardless of the mismatch with the registration ID. The received message is effectively received and saved in the reception mode, and the received message saved in the all reception mode is connected to the wireless monitoring device 2 by externally connecting a simple monitoring device with a connector or the like, and the saved message is read and displayed. It is possible to determine what radio waves are coming to the wireless monitoring device 2 of the dwelling unit 1A from the display of the monitor device, and it is possible to determine the degree of radio wave congestion in the so-called wireless monitoring device 2 of the dwelling unit 1A.

  Looking at the monitor display of the radio wave congestion status in the wireless monitoring system of the dwelling unit 1A, if the radio wave congestion is very high, there is a possibility of causing a communication failure due to a radio wave collision from another system device during operation. Because it is expensive, by moving the wireless monitoring device 2 to a place that is not easily affected by the radio waves from the system equipment of the dwelling unit 1B, it is possible to prevent malfunctions due to communication failures caused by radio waves from other system equipment during operation. Is possible.

  The wireless repeaters 12-1 and 12-2 provided in the dwelling unit 1 </ b> A receive upstream telegram signals based on abnormality detection from the wireless fire sensor 5, the wireless human body sensor 6, and the wireless contact sensor 7, and reproduce and relay them. In the regenerative relay, after the telegram data is demodulated from the received signal, the telegram data is modulated and transmitted. Similarly, when a downlink message including a light emission control message for the wireless outdoor display device 10 is received from the wireless monitoring device 2, the reproduction relay is similarly performed.

  Here, the radio repeaters 12-1 and 12-2 demodulate and store the telegram data from the received signal, and then modulate the telegram data stored at the time when different predetermined delay times TD1 and TD2 have elapsed. Is sending.

  FIG. 2 is a time chart when a downlink telegram is transmitted from the wireless monitoring device 2 to the wireless outdoor display device 10 via the wireless repeaters 12-1 and 12-2 in 1A of FIG.

  In FIG. 2, a delay time TD1 is set for the radio repeater 12-1, and a longer delay time TD2 is set for the radio repeater 12-2. When the wireless monitoring device 2 transmits a downlink message at time t1, the downlink message is received and demodulated by each of the radio repeaters 12-1 and 12-2, and the message data is stored. The radio repeater 12-1 modulates and transmits the message data received and held at time t2 when the delay time TD1 has elapsed from the reception time t1.

  On the other hand, the radio repeater 12-2 modulates and transmits the received telegram data at time t3 when the delay time TD2 has elapsed from the telegram reception time t1. For this reason, in the wireless outdoor display device 10, the same message is received at each of the times t1, t2, and t3, but the message that can be received first is validated and the subsequent message is discarded.

  In addition, if the wireless outdoor display device 10 receives a message through three different propagation paths and the message at time t1 and t2 cannot be received due to attenuation by the propagation path, the wireless repeater 12-2 receives the message at time t3. The transmitted message is received and processed.

  Referring again to the dwelling unit 1A in FIG. 1, in the wireless monitoring system of the present invention, a downlink message for light emission control transmitted from the wireless monitoring device 2 to the wireless outdoor display device 11 based on an instruction from the reporting center. For the propagation path including the wireless repeaters 12-1 and 12-2 from the wireless monitoring device 2 to the wireless outdoor display device 10, an optimum route that maximizes the reception intensity is determined in advance, and a light emission control message is transmitted according to the optimum route. I am trying to send it.

  The optimal route for transmitting the light emission control message as a downlink message from the wireless monitoring device 2 to the wireless outdoor display device 10 is determined by wirelessly transmitting a periodic notification message transmitted by the wireless outdoor display device 10 at regular time intervals, for example, every 6 minutes. When the signals are received by the repeaters 12-1, 12-2 and the wireless monitoring device 2, the reception strength is measured, and the route having the maximum reception strength is determined as the optimum route.

  In order to transmit the light emission control message according to the determined optimum route, the transmission source ID, which is the transmission source identifier, is set and registered in the device on the optimum route, and when receiving the message, the transmission source ID of the received message and the registered transmission source Only when the IDs are compared and matched, by receiving and relaying or processing this as an effective message, the light emission control message from the wireless monitoring device 2 can be sent to the wireless outdoor display device 10 according to the optimum route.

  Here, the circuit configuration of the wireless monitoring device 2, the wireless fire sensor 5, the repeater 12-1, and the wireless outdoor display device 10 provided in the wireless monitoring system of FIG. 1 will be described as follows.

  FIG. 3 is a block diagram of the wireless monitoring device 2 of FIG. In FIG. 3, the wireless monitoring device 2 includes a CPU 13, a transmission / reception module 14 having an antenna 15, an MSK modulator / demodulator 16, an ID storage unit 17, an LED display unit 18, a constant voltage circuit 19, a power supply voltage monitoring unit 20, and an interface 21. The reporting device 3 is connected to the interface 21.

  The CPU 13 is provided with an all reception mode processing unit 22, a monitoring control unit 23, an ID registration unit 24, and a reception intensity monitoring unit 80 realized by program control. The ID registration unit 24 transmits an ID registration request message to a system component device at the time of system startup accompanying power-on, receives an ID registration response message from another device, and registers an ID constituting the system device.

  The monitoring control unit 23 monitors the reception of the abnormality detection message by the wireless fire sensor 5 and the wireless contact sensor 7 installed in the dwelling unit 1A of FIG. 1, and when the abnormality monitoring message is received, reports via the interface 21 The apparatus 3 is notified of abnormality detection to the monitoring center, and the lighting control instruction of the warning lamp 11 for the wireless outdoor display device 10 returned from the monitoring center 4 in response to the abnormality detection notification is received, and lighting control is performed based on the instruction. A telegram is created and transmitted from the transmission / reception module 14.

  When receiving the message in the monitoring control unit 23, the transmission source ID of the received message is taken out, compared with the registered ID registered in the ID registration unit 24 in the initial process, and if both match, the message is Capture and process as a valid message. For this reason, a message having an ID that does not match the ID registered in the ID registration unit 24 is discarded.

  The all reception mode processing unit 22 validates the all reception mode by operating a dip switch (not shown) and the registration registered in the transmission message ID and the ID registration unit 24 in the setting state of the all reception mode. No comparison and collation with the ID is performed, even if the ID is not registered, all messages are taken as valid messages, and the contents of the received message are stored in the memory of the CPU 13.

  The CPU 13 is provided with a monitor terminal 84, and a monitor device 85 having a memory read function and a read result display function of the CPU 13 is connected to the monitor terminal 84 to perform a read operation, whereby all reception mode processing is performed. The contents of the received message stored in the unit 22 can be read and displayed on the monitor.

  Furthermore, the reception intensity monitor unit 80 includes a repeater included in the periodic report message when the periodic report message transmitted by the wireless outdoor display device 10 every 6 minutes is received via the wireless repeaters 12-1 and 12-2. A function is provided for extracting the received intensity code signal and storing it. The repeater reception intensity code stored by the monitoring control unit 23 can also be read and displayed by the monitor device 85 externally connected to the monitor terminal 84. Details of the repeater reception strength code included in the periodic notification message from the wireless repeater will be described in detail in the description of the wireless repeater later.

  The MSK modulator / demodulator 16 MSK modulates the downlink telegram data from the CPU 13 and inputs the data to the transmission / reception module 14. At this time, since the transmission / reception module 14 is in a transmission operation state, the antenna 15 Send from. Further, the uplink signal received by the antenna 15 is demodulated by the MSK modulation / demodulation unit 16 and converted into telegram data, which is input to the CPU 13 to decode the received telegram. For example, a nonvolatile memory such as an EEPROM is used as the ID storage unit 17, and a preset ID code is stored in the wireless monitoring device 2.

  The wireless monitoring device 2 receives a supply of AC 100 volts from a power supply circuit (not shown) and outputs a power supply voltage DC5 volts. The DC5 volts is converted to a constant voltage by a constant voltage circuit 19 and then includes a CPU 13 and a transmission / reception module 14. The operation power supply of each part is output. The power supply voltage monitoring unit 20 monitors a power supply voltage of DC 5 volts, and when the power supply is first turned on, a power supply voltage is detected by the power supply voltage monitoring unit 20 and a reset signal is output to the CPU 13 to perform a power-on reset. ing.

  FIG. 4 is a block diagram of the wireless fire sensor 5 of FIG. The wireless fire sensor 5 includes a CPU 25, a fire signal receiving circuit 27 to which a fire detector 26 is connected, a wireless transmission module 28 having an antenna 30, a power control switch 29, an ID storage unit 31, a test switch 32, a drive circuit 33, An information indicator lamp 34, lithium batteries 35a and 35b, and power supply voltage monitoring units 37 and 38 are provided.

  Here, the lithium batteries 35a and 35b each have an output of 3 volts, the power supply monitoring unit 37 monitors the 3 volt output of the lithium battery 35a, and the power supply voltage monitoring unit 38 is obtained by serial connection of the lithium batteries 35a and 35b. Among them, the CPU 25 operates with 3 volts from the lithium battery 35b, while the other circuit portions operate with DC 6 volts by connecting lithium batteries 35a and 35b in series.

  The CPU 25 is provided with an abnormality detection unit 39 as a function by program control. When the abnormality detection unit 39 receives the fire signal from the fire detector 26 by the fire signal receiving circuit 27, the abnormality detection unit 39 creates an abnormality detection message indicating the fire as the abnormality detection content, and turns on the power control switch 29 by the power control signal as a transmission operation. Then, the wireless transmission module 28 is set in an operating state, and in this state, a transmission activation signal and an abnormality detection message are supplied as modulation signals, and the abnormality detection message is modulated by the wireless transmission module 28 and transmitted from the antenna 30.

  In the anomaly detection unit 39, when the first fire signal is obtained from the fire signal receiving circuit 27 by the fire detector 26, the fire detector 26 is first restored, and then the fire is fired again after the restoration. When a signal is received, an abnormality detection message indicating a fire is transmitted. The wireless human body sensor 6 and the wireless contact sensor 7 shown in FIG. 1 are the same as the wireless fire sensor 5 except that the circuit corresponding to the fire signal receiving circuit 27 is a circuit unique to each sensor.

  FIG. 5 is a block diagram of the wireless repeater 12-1 of FIG. In FIG. 5, the wireless repeater 12-1 includes a CPU 40, a transmission / reception module 41, an antenna 42, an MSK modulator / demodulator 43, an ID storage unit 44, an LED display unit 45, a power supply voltage monitoring unit 49, a constant voltage circuit 48, and a power supply circuit 46. And a battery 47. The circuit configuration of the wireless repeater 12-1 is substantially the same as that of the wireless monitoring device 2 shown in FIG. 3 except that the interface 21 for connecting the notification device 3 is removed.

  The CPU 40 is provided with a relay processing unit 50 and a reception intensity notification unit 51. When the relay processing unit 50 receives a message from another system device, the relay processing unit 50 transmits the message held after the reception after the delay time TD1 set in the wireless repeater 12-1. For relay processing in the relay processing unit 50, an ID acquired from another system device at the time of system startup is registered, and the received message is regarded as an effective message only when the registration ID matches the ID of the received message. Transmission is performed after the delay time TD1 has elapsed.

  The reception intensity notification unit 51 has three levels of strong, medium, and weak with respect to the reception intensity signal output from the transmission / reception module 41 when receiving a periodic notification message transmitted from the wireless outdoor display device 10 at intervals of 6 minutes. The reception strength is set with a 2-bit code, and is transmitted after the delay time TD1 has elapsed since the reception of the periodic notification message.

This repeater reception strength code is
(1) 11 is strong (2) 10 is medium (3) 01 is weak (4) 00 is no relay.

  FIG. 6 is a block diagram of the wireless outdoor display device 10 of FIG. 6, the wireless outdoor display device 10 includes a CPU 53, a transmission / reception module 54 including an antenna 56, a power control switch 55, an ID storage unit 57, a test switch 58, a drive circuit 59, a constant current circuit 60, and a warning lamp 11. .

  Furthermore, lithium batteries 61a and 61b, a battery protection circuit 62, power switches 63a and 63b, a constant voltage circuit 64, and a power supply voltage monitoring unit 65 are provided as power supply units. Each of the lithium batteries 61a and 61b uses a 3 volt output, and the 3 volt output of the lithium battery 61b is supplied to and driven by the CPU 53 via the constant voltage circuit 64 and the power switch 63b.

  The 6-volt power supply voltage obtained by connecting the lithium batteries 61a and 61b in series is supplied to the circuit portion other than the constant current circuit 60 and the CPU 53 via the battery protection circuit 62 and the power switch 63a. is doing.

  As the warning lamp 11, a plurality of LEDs are used as a light source, and the light emission driving of the plurality of LEDs ensures the visibility over a distance equivalent to the light emission driving of the conventional xenon tube. In the light emission drive of the warning lamp 11, the current flowing to the LED is made constant by the constant current circuit 60, thereby stabilizing the light emission luminance and reducing the current consumption required for the light emission drive.

  The CPU 53 is provided with a periodic notification unit 66, an intermittent reception control unit 67, and a light emission control unit 68 as functions realized by the program control. The periodic notification unit 66 outputs a periodic notification message to the transmission / reception module 54 and transmits it from the antenna 56 at a predetermined fixed time interval, for example, every six minutes, and the periodic notification message is periodically transmitted by the wireless monitoring device 2 of FIG. Thus, it can be confirmed that the battery-driven wireless outdoor display device 10 is functioning normally.

  Further, the periodic notification message transmitted from the wireless outdoor display device 10 is used as a message for measuring the reception strength of the received message in each of the wireless repeaters 12-1 and 12-2 and the wireless monitoring device 2.

  The intermittent reception control unit 67 performs the intermittent reception operation by turning on and off the power supply of the reception circuit unit in the transmission / reception module 54 at predetermined time intervals by a power control signal to the power control switch 55. Specifically, the intermittent reception operation is performed by turning on the power supply to the reception circuit unit for 0.5 seconds at intervals of 2 minutes. Therefore, transmission of a message from the outside to the wireless outdoor display device 10 must be transmitted so as to be synchronized with the operation timing of intermittent reception in the wireless outdoor display device 10.

  By intermittently operating the receiving unit in the transmission / reception module 54, the power consumption of the lithium batteries 61a and 61b in the reception standby state can be greatly reduced.

  The light emission control unit 68 is driven when a light emission control message is received from the wireless monitoring device 2 or the wireless repeaters 12-1 and 12-2 received at the timing when the reception unit is turned on by the intermittent reception control unit 67. The circuit 59 is operated to drive the warning lamp 11 through the constant current circuit 60. In addition, when a light emission control message for stopping lighting is received after lighting, driving by the drive circuit 59 is stopped and the warning lamp 11 is turned off.

  The wireless outdoor display device 10 operates using lithium batteries 61a and 61b as a power source. For example, at a rate of once a month due to intermittent reception in the transmission / reception module 54 and reduction of current consumption including the use of an LED as the warning lamp 11. Assuming that the warning lamp 11 is turned on, the battery life is guaranteed for 5 years, and a life of about 7 years is actually achieved.

  FIG. 7 is a time chart of the intermittent reception operation and periodic notification transmission of the wireless outdoor display device 10 shown in FIG. 6 and the synchronous transmission of the light emission control message in the wireless repeater 12-1. In addition, about the synchronous transmission of the light emission control message, the wireless repeater 12-2 and the wireless monitoring device 2 are the same.

  FIG. 7A shows the intermittent reception operation of the wireless outdoor display device 10, from time t <b> 1 to t <b> 2 = 0.5 seconds, after turning on the power supply to the reception circuit unit and setting the operation state, the power supply to the reception circuit unit is turned off. is doing. The intermittent reception operation of turning on the power supply to the reception unit again at time t3 when 2 minutes, which is T1 time has elapsed from the start of the reception operation at time t1, and turning off after 0.5 seconds is repeated.

  FIG. 7 (B) shows a transmission operation of a periodic notification message in the wireless outdoor display device 10, which transmits a periodic notification message at time t2, which is the timing of the off period in the intermittent reception operation, and is 6 minutes from time t2 to T3 time. The periodic notification message is transmitted again at time t5 after the lapse, and this is repeated. Here, between the intermittent reception operation and the periodic notification message, the periodic notification message is transmitted at a timing one minute before T4 time from the power-on of the intermittent reception operation at time t3.

  FIG. 7C shows, for example, the reception timing of a regular notification message in the wireless repeater 12-1. The regular notification message transmitted at time t2 in FIG. 7B is received at the same timing. FIG. 7 (D) shows the synchronization of the light emission control message when the wireless relay device 12-1 has already received and held the light emission control message from the wireless monitoring device 2 that is the transmission source. This is the transmission timing.

  That is, as shown in FIG. 7C, when the periodic notification message is received at time t2, the timer is started, the elapse of 1 minute which is T4 time is determined, and T4 = 1 time elapses at time T4. A light emission control message is transmitted for T5 time.

  The transmission time T5 of the light emission control message has a width exceeding the reception time T2 = 0.5 seconds in the intermittent reception operation of FIG. 7A, and the intermittent reception operation overlaps the hatched portion, thereby reliably emitting light. Control messages can be received synchronously.

  Here, the message transmitted by the present invention has a re-transmission timing in which a 2-second pause period is made after a 4-time continuous transmission of the message, and then the 2-second time is divided into 8 equal parts. One message is randomly selected and the message is repeated twice. As a result, there is a slight difference between the transmission timing of the light emission control message in FIG. 7D and the reception period of the intermittent reception operation in FIG. Even in such a case, it is possible to receive the light emission control message because the plurality of continuous transmissions of the light emission control message are always at the intermittent reception timing.

  Further, the synchronous transmission of the light emission control message synchronized with the periodic notification message shown in FIGS. 7C and 7D is performed by all the devices that have already received the light emission control message when the periodic notification message is received. Of these, the synchronously transmitted light emission control message that is effectively transmitted is only the message according to the already determined optimum route, and is transmitted from the wireless monitoring device 2 to the wireless outdoor display device 10 that is the final transmission destination. It is transmitted through the optimal route.

  FIG. 8 is an explanatory diagram of a message format used in the wireless monitoring system of FIG. In FIG. 8, a message 70 includes a frame detection code 71, a start code 72, a message length code 73, a communication control code 74, a transmission device identification code 75, a data code 76, and an error detection code 77.

  Of these, the communication control code 74 is composed of repeater reception strength codes 78 and 79, normal / periodic notification code 80, activation code 81, message type code 82, and communication direction code 83, as shown below. ing. As the repeater reception strength codes 78 and 79, a two-bit code is assigned to each of the two wireless repeaters 12-1 and 12-2 in FIG. 1, and is “00” as shown below. No relay, “01” is weak, “10” is medium, “11” is strong.

  When the radio repeaters 12-1 and 12-2 replay and relay a received message, the radio repeater 12-1 determines whether the received intensity obtained by receiving the message corresponds to strong, medium, or weak, and corresponds to the corresponding 2-bit The repeater reception strength codes 78 and 79 are set in a message and transmitted. When not passing through the radio repeaters 12-1 and 12-2, the repeater reception strength codes 78 and 79 are “00” without relay.

  The repeater reception intensity codes 78 and 79 allow the operator to easily monitor the reception intensity at the time of installation or inspection in the wireless monitoring device 2.

  The next normal / periodic notification code 80 is “1” for regular notification and “0” for normal. For this reason, when it is a periodic notification message, the wireless repeaters 12-1, 12-2 and the wireless monitoring device 2 perform the A / D conversion on the received intensity (analog value of 0-255) obtained at that time. It is captured and stored as received intensity measurement information.

  The activation code 81 is “1” at the time of activation and “0” in other cases. The message type code 82 is “0” for a normal message and “1” for a set message. Further, the communication direction code 83 is “1” when the communication direction from the wireless monitoring device 2 to the terminal side is “1” in the upward direction, and “0” when the communication direction from the terminal side to the wireless monitoring device 2 is the downward direction.

  In addition, the response message of the reception intensity at the time of determining the optimum route for sending the light emission control message from the wireless monitoring device 2 to the wireless outdoor display device 10 is obtained in the data code 76 in the message 70 when the periodic notification message is received. The received intensity value (8-bit data obtained by A / D converting analog values 0 to 255) is set and transmitted.

  FIG. 9 is an explanatory diagram of the repeater reception intensity measurement process in the wireless monitoring system of the present invention installed in the dwelling unit 1A of FIG. In FIG. 9, the wireless outdoor display device 10 transmits a periodic notification message at intervals of 6 minutes, and this periodic notification message is received by the wireless repeaters 12-1 and 12-2, and the reception strengths thereof are E1 and E3, respectively. Suppose that

  Here, the reception strength E1 is sufficiently large, and therefore the reception strength code is 11. Further, since the reception strength E3 at the wireless repeater 12-2 is medium, the reception strength code is 10.

  The wireless repeater 12-1 that has received the periodic notification message from the wireless outdoor display device 10 transmits the periodic notification message 70-1 as shown in FIG. 10A after the delay time TD1. This periodic notification message 70-1 is sent with "11" set as the repeater reception strength code 78-1 of the wireless repeater 12-1. The repeater reception intensity code 79-1 assigned to the wireless repeater 12-2 is “00” because the corresponding reception is not performed.

  The periodic notification message 70-1 in FIG. 10A is sent to the wireless monitoring device 2 at the same time as being sent to the wireless repeater 12-2. Therefore, in the wireless monitoring device 2, when the periodic notification message 70-1 of FIG. 10A can be received effectively, the repeater reception strength code 78-1 “11” included in the contents is received. ”And save it.

  On the other hand, even in the wireless repeater 12-2, after receiving the periodic notification message from the wireless outdoor display device 10, the periodic notification message is transmitted to the wireless monitoring device 2 after the delay time TD2. In this case, as shown in the periodic notification message 70-2 in FIG. 10B, the periodic notification message 70-2 is assigned with the repeater reception intensity code 78-1 assigned to the wireless repeater 12-1 being “00”. , “10” is set in the repeater reception intensity code 79-1 assigned to the wireless repeater 12-2 and transmitted.

  The periodic notification message 70-1 in FIG. 10A transmitted from the wireless repeater 12-1 is received by the wireless repeater 12-2 at the same time as being received by the wireless monitoring device 2. The wireless repeater 12-2 transmits the periodic notification message 70-3 shown in FIG. 10C after the delay time TD2 from the reception of the periodic notification message.

  In this periodic notification message 70-3, "11" is already set in the repeater reception intensity code 78-3 assigned to the wireless repeater 12-1, and the repeater assigned to the wireless repeater 12-2. The reception strength code 79-3 is set to “11” and transmitted. Of course, in FIGS. 10A, 10B, and 10C, ID 2 of the wireless repeater 12-1 is set in the transmission device identification code 75-1, and the transmission device identification code of the periodic notification messages 70-2 and 70-3. ID3 of the wireless repeater 12-3 is set in 75-2 and 75-3.

  Thus, the periodic report message transmitted from the wireless outdoor display device 10 is relayed and transmitted via the wireless repeaters 12-1 and 12-2. A repeater reception intensity code indicating the degree of reception intensity can be stored and output as a monitor for confirmation as necessary.

  FIG. 11 is a flowchart of the monitoring process in the wireless monitoring device 2 of FIG. In FIG. 11, the monitoring control process performs an initialization process including ID registration at the time of start-up associated with power-on in step S1. Subsequently, in step S2, it is checked whether or not it is the all reception mode. If it is the normal mode, the process proceeds to step S3, and it is checked whether or not the sensor abnormality detection message of registration ID is received.

  If it is determined that the sensor abnormality detection message has been received, the process proceeds to step S4, where an alarm reception process is performed, then the monitoring center is notified in step S5, and the light emission control instruction is received from the monitoring center in step S6. A control telegram is transmitted to the display device 10 to perform light emission control of the warning lamp 11.

  If the periodic notification message of registration ID is received in step S8, the process proceeds to step S9, and the repeater reception strength code included in the received periodic notification message is extracted and stored. Subsequently, when there is a request for output of received intensity in step S10, the currently stored received intensity is read in step S11, and is output and displayed on an externally connected monitor device. If another message having a registration ID is received in step S12, a corresponding process according to the content of the received message is performed in step S13.

  On the other hand, when the all reception mode is determined in step S2, the process proceeds to step S14, where the message reception is checked. If there is a message reception, the transmission source ID included in the message is ignored in step S15. Save the message as it is. If there is a saved message output request in step S16 during saving of message reception in this all reception mode, the saved message is output in step S17 and output and displayed on an externally connected monitor device.

  FIG. 12 is a flowchart of the relay process of the wireless repeater of FIG. In FIG. 12, the relay process performs an initialization process associated with power-on in step S1. This initialization process includes the ID registration acquired from the system components.

  Next, the reception of the periodic notification message is checked in step S2, and when the periodic notification message is received, the periodic notification message is saved in step S3, and then the reception strength output from the transmission / reception module at that time is captured in step S4. Then, it is determined whether it belongs to strong, medium or weak, and a reception strength code is created based on the determination result. Next, in step S5, a periodic notification message in which the reception strength code is set is transmitted after the delay time TD1.

  On the other hand, when other messages other than the periodic notification message are received in step S6, the message is stored in step S7, and the message is transmitted after the delay time TD1 in step S8.

  FIG. 13 is a flowchart of the outdoor display process in the wireless outdoor display device of FIG. 6. After the initialization process is performed in step S 1 when the power is turned on, as shown in FIG. 7A in step S 2. Repeat the intermittent reception process of turning on the power to the receiving unit for 5 seconds at intervals of 2 seconds, and further execute the periodic notification process of transmitting periodic notification messages at intervals of 6 minutes as shown in FIG. ing.

  When a light emission control message is received from the wireless monitoring device 2 side, as shown in FIGS. 7C and 7D, the wireless monitoring device 2 or the wireless repeater 12- that has already received the light emission control message. 1 and 12-2 transmit the light emission control message at a timing synchronized with the reception of the periodic notification message, thereby causing the lighting control message to be received in synchronization with the reception operation timing of FIG. Lighting control or stop control after lighting can be performed.

  In the above embodiment, the wireless outdoor display device 10 is taken as an example of the wireless control terminal, and the periodic notification message is transmitted at intervals of 6 minutes. However, other wireless control terminals can be used as system devices as needed. May be provided as appropriate.

  Moreover, although said embodiment has taken the case where the number of radio repeaters is two as an example, it is good also as three or more as needed.

In FIG. 1, the case where the wireless monitoring system of the present invention is installed in an apartment house is taken as an example, but the present invention can be similarly applied to a detached apartment house.
Further, the present invention includes appropriate modifications that do not impair the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

Illustration of the wireless monitoring system according to the present invention installed in a dwelling unit Time chart of relay communication with a fixed delay of the wireless repeater provided in the wireless monitoring system of FIG. Block diagram of the wireless monitoring device of FIG. Block diagram of the wireless fire sensor of FIG. Block diagram of the wireless repeater of FIG. Block diagram of the wireless outdoor display device of FIG. Explanatory drawing of the message format used in the wireless monitoring system of FIG. Explanatory drawing of repeater reception intensity measurement processing in the wireless monitoring system of the present invention Explanatory drawing of the periodic notification message in which the repeater reception strength code transmitted from the wireless repeater of FIG. 8 is set Time chart of intermittent reception operation and periodic notification message transmission of wireless outdoor display device Flowchart of monitoring processing in the wireless monitoring device of FIG. Flowchart of relay processing of the wireless repeater of FIG. Flowchart of outdoor display process in wireless outdoor display device of FIG.

Explanation of symbols

1A, 1B: Dwelling unit 2: Wireless monitoring device 3: Notification device 4: Communication line 5: Wireless fire sensor 6: Wireless human sensor 7: Wireless contact sensor 8: Magnet switch 9: Magnet 10: Wireless outdoor display device 11: Warning light 12, 12-1, 12-2: Wireless repeaters 13, 25, 40, 53: CPU
14, 28, 41, 54: Transmission / reception module 15, 30, 42, 56: Antenna 16, 43: MSK modulator / demodulator 17, 31, 44, 57: ID storage unit 18, 45: LED display unit 19, 48, 64: Constant voltage circuits 20, 37, 38, 49, 65: power supply voltage monitoring unit 21: interface 22: all reception mode processing unit 23: monitoring control unit 24: ID registration unit 26: fire detector 27: fire signal receiving circuit 29, 55: Power control switch 32, 58: Test switch 33: Drive circuit 34: Alarm indicator lamps 35a, 35b, 61a, 61b: Lithium batteries 36, 63a, 63b: Power switch 39: Abnormality detection unit 46: Power circuit 47: Battery 50: Relay processing unit 51: Reception strength notification unit 59: Drive circuit 60: Constant current circuit 62: Battery protection circuit 66: Periodic notification unit 67: Intermittent reception control unit 6 : Light emission control unit 70: message 70-1～70-3: periodically Problem message 80: reception intensity monitor unit 84: monitor terminal 86: monitoring device

Claims (7)

A sensor terminal that detects abnormalities such as theft and fire and wirelessly transmits an abnormality detection signal;
A control terminal device that receives a control signal by radio and is remotely controlled;
A monitoring device that receives an abnormality detection signal from the sensor terminal and performs alarm processing, and transmits a control signal to the control terminal device to remotely control it;
One or a plurality of repeaters for relaying transmission signals between the sensor terminal and the control terminal device and the monitoring device;
In a wireless monitoring system equipped with
In the control terminal device,
An identifier registration unit for registering identifiers of system component devices;
When a signal is received from another device including a system component device, the identifier included in the received signal is checked against the registered identifier of the identifier registration unit, and the received signal is processed if they match, and received if they do not match A monitoring processor that discards the signal;
When setting all reception mode, all reception mode processing unit that receives all signals including an identifier that does not match the registered identifier and stores reception information;
A wireless monitoring system characterized by comprising:
2. The wireless monitoring system according to claim 1, wherein the all reception mode processing unit outputs the received information stored in response to a read request from an externally connected monitor device and displays the received information on a monitor. Wireless monitoring system.
The wireless monitoring system according to claim 1, further comprising:
The relay includes a reception strength notification unit that transmits a reception strength monitor signal indicating a degree of reception strength of the uplink signal included in the uplink signal when relaying the uplink signal transmitted from the control terminal device,
The radio monitoring system, wherein the monitoring device includes a reception intensity monitor unit that extracts and stores a reception intensity code signal included in an uplink signal received from the repeater.
A sensor terminal that detects an abnormality such as theft or fire and transmits an abnormality detection signal;
A control terminal device that receives a control signal and is remotely controlled;
A monitoring device that receives an abnormality detection signal from the sensor terminal and performs alarm processing, and transmits a control signal to the control terminal device to remotely control it;
One or a plurality of repeaters for relaying transmission signals between the sensor terminal and the control terminal device and the monitoring device;
In a wireless monitoring system equipped with
The repeater includes a reception strength notification unit that transmits an uplink signal including a reception strength monitor signal indicating a degree of reception strength of the uplink signal when relaying the uplink signal transmitted from the control terminal device,
The radio monitoring system, wherein the monitoring device includes a reception intensity monitor unit that extracts and stores a reception intensity code signal included in an uplink signal received from the repeater.
5. The radio monitoring system according to claim 1, wherein the reception intensity monitor signal is a code signal indicating that the reception intensity is strong, medium, weak or no relay.
5. The radio monitoring system according to claim 1, wherein the uplink signal including the reception intensity monitor signal is a periodic notification signal transmitted at a predetermined time interval from the control terminal device. .
  5. The wireless monitoring system according to claim 1, wherein the control terminal device is an outdoor display device that is driven by a battery power source and receives a lighting control signal from the outside and lights an indicator lamp. Wireless monitoring system.