JP2023055926A - Setting device of radio disaster prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a setting device for a radio disaster prevention system that collects setting information and history information stored in a repeater node through wireless communication, and re-registers, by editing the collected setting information and transmitting the edited setting information to the repeater node through wireless communication.

SOLUTION: In a radio disaster prevention system for a building 11 in which each of a plurality of sensor lines 16 connected to a receiver 10 is connected to a wireless sensor node assigned to the sensor line and a receiving repeater 12 for functioning as a repeater node that relays communication with the receiver via the sensor line, a setting device 20 that does not wirelessly communicate with the receiver is carried by a staff member and used, can perform direct wireless communication with all of the plurality of repeater nodes, and by the direct wireless communication, collects history information stored in the repeater nodes through wireless communication.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a setting device for a wireless disaster prevention system that transmits a message wirelessly transmitted from a sensor node such as a wireless sensor to a receiver via a repeater node to issue an alarm.

Conventionally, in a wireless disaster prevention monitoring system that monitors fires, multiple wireless detectors functioning as sensor nodes are installed in warning areas such as each floor of a building or the occupied area of an apartment building. When a fire is detected in , a telegram indicating the fire is wirelessly transmitted to a receiving repeater functioning as a repeater node installed on each floor. In addition, a radio wave repeater is installed as necessary, and telegrams from the wireless sensor are relayed by the radio wave repeater and transmitted to the receiving repeater.

The receiving relay is connected to the detector line from the receiver, and when it receives a telegram indicating a fire, the relay contact or switching element turns on to send an alarm current to the detector line and receive a fire alarm signal. machine. When the receiver receives this fire alarm signal, the receiver issues a fire alarm by means of sound and display.

According to such a wireless disaster prevention system, it is possible to eliminate some of the sensor lines that are generally laid in the ceiling space, etc., simplifying the wiring work, and restricting the installation location of the sensor to wiring, etc. can decide without In addition, system changes such as the addition of detectors can be easily accommodated.

By the way, in the conventional wireless disaster prevention system, a unique node ID (equipment ID) is fixedly stored in the wireless detector and the receiving repeater at the manufacturing stage. Based on the parent-child relationship between the receiving repeater and multiple wireless sensors, addresses used in the system are assigned in advance to the wireless sensors that are child nodes of the receiving repeater. The node IDs of a plurality of wireless sensors having a parent-child relationship with the repeater are registered in the receiving repeater as a combination of the node ID and the address.

Registration of the node ID of the wireless sensor with respect to the receiving repeater is performed by setting the registration mode by operating the receiving repeater and the wireless sensor. After setting the registration mode, the receiving repeater designates the address of the wireless sensor on the management table and waits for registration. An ID registration telegram is sent, and when the reception repeater receives the registration telegram sent by the wireless sensor, it extracts the sender ID included in the received telegram and registers it as a node ID in the management table. , and this is repeated for all wireless sensors that have a parent-child relationship, thereby automatically registering the correspondence between addresses and node IDs.

As a result, when receiving a telegram from the wireless sensor, the receiving repeater compares the source ID included in the telegram with a pre-registered node ID, and, for example, when both match, the telegram is processed as valid. I am trying to

JP 2008-004033 A JP 2010-114632 A JP 2013-009149 A JP 2012-234351 A JP-A-7-272171

By the way, in the conventional receiving repeater, an antenna terminal is provided so that the receiving antenna to be used can be replaced according to the installation site, and the receiving antenna is connected to the antenna terminal via a coaxial cable. Due to the Radio Law, it is not possible to transmit using the receiving antenna, and it is only for receiving. However, due to revisions to the Radio Law in recent years, it has become possible to transmit using an antenna that is detachable from the antenna terminal.

If it is possible to provide a receiving repeater with a transmitting/receiving function in this way, the setting device can be used to target a plurality of receiving repeaters whose IDs are unknown at the start of operation of the disaster prevention monitoring system or during system operation. is used to wirelessly read and confirm the correspondence between, for example, sensor nodes and addresses registered in the receiving repeater, and edit operations including additions, changes, and deletions as necessary. .

However, when a data such as a read command is sent from the setting device without specifying the ID of the receiving repeater, all the receiving repeaters within the effective reception range of the transmitted radio wave will respond, and the communication timing for the response will be changed. overlap, communication may not be established. For example, all radio waves cannot be received due to collision, or only messages from the receiving repeater with the strongest radio wave are effectively received, and messages from weaker radio wave receiving repeaters are received. I am in a situation where I can't.

Also, writing data by transmitting a write command telegram to the receiving repeater without specifying an ID in this way is not possible if multiple receiving repeaters are expected to receive the telegram. Writing data is dangerous because the destination cannot be specified.

The present invention is a setting device for a wireless disaster prevention system, which wirelessly acquires the ID of a repeater node within a radio wave range using a setting device, and reads and writes data specifying the ID. intended to provide

(Setting device 2: history information)
In the present invention, each of a plurality of sensor lines connected to a receiver is connected to a self-assigned wireless sensor node and a repeater node that relays communication with the receiver via the sensor line. A setting device for a wireless disaster prevention system,
It is characterized by being portable and used by an attendant, capable of direct wireless communication with any of a plurality of repeater nodes, and collecting history information stored in the repeater node by wireless communication through the direct wireless communication. .

(Setting device 4: channel frequency)
In the present invention, each of a plurality of sensor lines connected to a receiver is connected to a self-assigned wireless sensor node and a repeater node that relays communication with the receiver via the sensor line. A setting device for a wireless disaster prevention system,
It is characterized by being portable and used by an attendant, capable of direct wireless communication with any of a plurality of repeater nodes, and capable of selecting a channel frequency for wireless communication with the repeater node through the direct wireless communication.

The configuration device according to the invention does not communicate wirelessly with the receiver.

(Effect of wireless disaster prevention system 1)
The present invention comprises one or more sensor nodes, repeater nodes, and receivers. Telegrams wirelessly transmitted from the sensor nodes are received and processed by the repeater nodes, and the processing results are received through signal lines. In a wireless disaster prevention system provided with a setting device for reading and writing information by designating the ID of a repeater node, the setting device has a predetermined initial value that is gradually decreased from a predetermined initial value. Calling telegrams without ID designation with set response reception strength are sequentially transmitted to repeater nodes, and when a response telegram to the calling telegram is received from the repeater node, the ID of the repeater node included in the response telegram is acquired. a setting control unit for registering a sleep request message specifying the registered ID to the repeater node, and transmitting a recovery message to the repeater node when ID registration of the repeater node is completed; When the node receives a calling message from the setting device and the reception strength is equal to or higher than the response reception strength specified in the calling message, the node sends a response message including its own ID to the setting device, and after sending the response message, Since it has a relay control unit that suspends the message transmission operation when a sleep request message is received, and cancels the suspension when a recovery message is received from the setting device while the message transmission operation is suspended, radio waves from the setting device When a repeater node within the reach of a repeater node receives a calling message without ID designation, it transmits a response message only when the reception strength is greater than or equal to that specified in the calling message. Since each distance is different, by gradually decreasing the response reception strength specified in the calling message, the response message is transmitted in order from the repeater node with the shortest distance, and the transmission timing of the multiple repeater nodes is adjusted. It is possible to acquire and register an ID from a response message received for each relay node without overlapping.

In addition, the setting device transmits a sleep request message specifying an ID to the repeater node that sent the response message, and suspends the transmission operation for subsequent call messages, thereby gradually decreasing the response reception altitude. To avoid transmission of a response message from a plurality of repeater nodes even when the number of relay nodes is small, and to transmit the response message in order from a repeater node having a short distance.

Furthermore, when the ID registration of all repeater nodes within the radio wave reachable range from the setting device is completed, a recovery telegram is transmitted, thereby canceling the suspension of the transmission operation due to the reception of the sleep request telegram and returning to the normal operation state. allow to return to

(Effect of wireless disaster prevention system 2)
The present invention comprises one or more sensor nodes, repeater nodes, and receivers. Telegrams wirelessly transmitted from the sensor nodes are received and processed by the repeater nodes, and the processing results are received through signal lines. In a wireless disaster prevention system equipped with a setting device that reads and writes information by specifying the ID of a repeater node, the setting device sends a call message without ID specification using an initially set channel frequency. is transmitted to the repeater node, and when a response message from the repeater node to the call message is received by sweeping the channel frequency within a predetermined frequency range, the ID of the repeater node included in the response message is obtained. and a setting control unit that transmits a recovery telegram by frequency sweep of the channel frequency when the ID registration of the repeater node is completed, and the repeater node receives a call telegram from the setting device with the initially set channel frequency is received, a response message including its own ID is sent to the setting device using a predetermined response channel frequency corresponding to its own ID, and the channel frequency is returned to the initial setting when a recovery message is received using the response channel frequency. Since the relay control unit is provided, the repeater nodes within the reach of radio waves from the setting device use different channel frequencies corresponding to their own IDs when receiving a calling telegram without ID designation. A response message is transmitted, and the setting device individually receives response messages from different repeater nodes by sweeping the channel frequency sequentially. An ID can be acquired from a response message received for each relay node and registered.

In addition, when the ID registration of all repeater nodes within the range of the radio wave from the setting device is completed, the channel frequency can be returned to the initial setting and the normal operation state can be restored by transmitting a recovery telegram. do.

(Effect of transmission of recovery message by termination operation of registered ID)
The setting control unit of the setting device displays the registration ID on the display unit each time the ID of the repeater node is obtained and registered so that the end of the registration can be confirmed, and when the reception of the ID registration end operation by the operation unit is detected. , the number of repeater nodes within range of radio waves from the setting device is unknown. It is possible to recognize the completion of the ID registration of the device node, and perform the recovery operation based on this, so that the recovery telegram can be sent to the repeater node and the normal operation state can be restored.

(Effect of confirming correspondence between addresses and node IDs)
Further, the relay control unit of the repeater node registers the correspondence between the node ID and the address of the sensor node assigned in advance, and the setting control unit of the setting device registers the address of the repeater node specified by the registered ID. Since the correspondence between the sensor node ID and the address is read and displayed, if the correspondence between the sensor node ID and the address that operated the repeater node and the sensor node is automatically registered in the repeater node, is it registered correctly? can be easily and easily confirmed by reading and displaying it on a setting device.

(Effect of Editing Correspondence Between Address and Node ID)
Further, the relay control unit of the repeater node registers the correspondence between the node ID and the address of the sensor node assigned in advance, and the setting control unit of the setting device registers the address of the repeater node specified by the registered ID. Editing operations including addition, modification, or deletion of correspondence between sensor node IDs and addresses are received and processed, and the editing results are sent to repeater nodes for registration. After registering the ID of a certain repeater node, for example, when a repeater node fails during system operation and is replaced, the node ID of the sensor node read from the repeater node before the failure by the setting device at the start of system operation and the node ID of the sensor node The address correspondence relationship is saved in a server or the like, and after reading this into the setting device, the setting device of the replaced repeater node is brought closer to write and register, so that the apartment house where the sensor node is installed. To enable operation by simply and easily registering a correspondence relationship between a sensor node ID and an address for a replaced repeater node without entering the occupied part.

In addition, when the assignment of sensor nodes is changed as necessary in a plurality of repeater nodes, the correspondence between the node ID and the address of the sensor node is read from the repeater node, and the node ID is rewritten based on the change in assignment. By performing an editing operation, writing the edited result to the repeater node, and re-registering it, it is possible to change the assignment of the sensor node to the repeater node without entering the occupied area of the condominium where the sensor node is installed. to be able to deal with

(history log)
In addition, the relay control unit of the repeater node stores the history information including the reception of telegrams from the sensor node, the strength of the radio waves, and the transmission of processing results of the telegrams to the receiver. Since the history information of the repeater node specified by is read and processed, it is possible to easily collect history information such as the reception status of the repeater node during system operation and radio wave strength, etc., and use it for analysis of the communication environment. and

Explanatory drawing showing an overview of the wireless disaster prevention system according to the present invention Block diagram showing the functional configuration of the wireless sensor Block diagram showing the functional configuration of the receiving repeater Block diagram showing the functional configuration of the setting device A time chart showing the operation of acquiring and registering the ID of the receiving repeater by the calling message without ID specification in which the response reception strength is set from the setting device. Explanatory diagram showing a list of correspondences between receiving repeater IDs and channel frequencies A time chart showing the operation of acquiring and registering an ID from a response message with a channel frequency corresponding to the ID of the receiving repeater by a call message without ID designation from the setting device.

[Wireless disaster prevention system]
(system overview)
FIG. 1 is an explanatory diagram showing an outline of a wireless disaster prevention system according to the present invention. In FIG. 1, receiving repeaters 12-1 to 12-3 functioning as repeater nodes are installed on each floor of the 1st to 3rd floors of a building 11 to be monitored. It is connected to a sensor line 16 pulled out for each floor and a common power line 18 .

Wireless sensors 14-11, 14-12, 14-21, 14-22, and 14-31, 14-32 functioning as sensor nodes are installed on each floor from 1F to 3F.

In the following description, the receiving repeaters 12-1 to 12-3 and the wireless sensors 14-11 to 14-32 are referred to as the receiving repeaters 12 and the wireless sensors 14 when it is not necessary to distinguish them. A radio wave repeater may be installed to the receiving repeater 12 in order to prevent the signal from not reaching the receiving repeater 12 due to the attenuation of the radio wave from the wireless sensor 14 which is far away.

Each of the receiving repeaters 12-1 to 12-3 and the wireless sensors 14-11 to 14-32 is pre-registered (stored) with a unique node ID using the device ID.

The wireless sensor 14 determines that a fire event has occurred when the smoke density or temperature due to the fire exceeds a predetermined threshold value, and intermittently wirelessly transmits a telegram signal indicating the fire (hereinafter simply referred to as "telegram"). .

In the receiving repeater 12-1 on the 1F, a node ID specifying the wireless detectors 14-11 and 14-12, which are the transmission sources as child nodes for receiving telegrams based on the parent-child relationship, and a node ID in advance on the system. A correspondence relationship with the assigned address is registered in advance as table information in a memory, for example.

This point is the same for the receiving relays 12-2 and 12-3 on the 2F and 3F, and the receiving relay 12-2 contains the node IDs and addresses of the wireless sensors 14-21 and 14-22. Correspondences are registered in advance as table information, and correspondences between the node IDs and addresses of the wireless sensors 14-31 and 14-32 are registered in advance as table information in the receiving repeater 12-3. When a radio repeater is provided, the correspondence between the node ID and the address of the radio repeater is registered in the management table.

By registering the address and node ID for the receiving repeater 12 as described above, when a telegram is received, the source ID included in the telegram is compared with a pre-registered node ID. It will be processed as a valid message.

In addition, wireless communication between the wireless sensor 14 and the receiving repeater 12 is carried out according to the standard of a specific low-power radio station in the 400 MHz band, for example, in Japan. It allows the use of any of the 48 channels with a 12.5 KHz bandwidth from .2500 MHz to 426.8375 MHz.

Therefore, for the receiving repeater 12 and the wireless sensor 14, one of the 48 channels available in the 400 MHz band specific low-power radio station standard is selected and the channel frequency to be used is set. In this case, the channel frequencies may be the same on each floor, or different channel frequencies may be used on adjacent floors, for example, to avoid interference.

(Outline of the transmission function of the receiving repeater and the setting device)
The receiving repeater 12 has an antenna terminal 42, and the transmitting/receiving antenna 40 is connected to the antenna terminal 42 via a coaxial cable.

The setting device 20 has a display unit such as a liquid crystal display and an operation unit having operation keys and the like. Reference numeral 20 functions as a reader/writer for reading and writing information to and from the receiving repeater 12, and performs registration by obtaining an ID and reading of various information with the receiving repeater within the reach of radio waves from the setting device 20. and writing.

[Wireless sensor]
(Functional configuration of wireless detector)
FIG. 2 is a block diagram showing the functional configuration of the wireless sensor. As shown in FIG. 2, the wireless sensor 14 functioning as a sensor node includes a sensor control unit 22, a wireless communication unit 24 to which an antenna 26 is connected, a sensor unit 28, a display unit 30, an operation unit 32, and a battery power supply 34. Prepare.

The sensor control unit 22 is assumed to be a computer circuit or the like having a CPU, memory, various input/output ports, and the like. In Japan, the wireless communication unit 24 intermittently transmits telegrams in compliance with the standard of a specified low-power wireless station in the 400 MHz band, for example.

The format of the electronic message transmitted by the wireless communication unit 24 is composed of a preamble (phase correction data), sender ID, electronic message type, data such as smoke concentration and temperature, and an error check code. Among them, the message type indicates, for example, a message indicating a sensor state, a message indicating a periodic report, and the like. The source ID is the ID of the wireless sensor that is the source of the electronic message, and is 50 to 60-bit data when assuming identification of one million wireless sensors, for example.

The sensor unit 28 detects smoke by, for example, a scattered light type smoke detection mechanism, and outputs a smoke detection signal corresponding to the smoke concentration. The sensor control unit 22 detects fire based on this. A temperature detection element such as a thermistor may be provided in the sensor section 28, and a temperature detection signal may be output to the sensor control section 22 to detect a fire. The display unit 30 includes an alarm indicator lamp or the like that lights when a fire is detected. The operation unit 32 includes a registration switch, a test switch, and the like.

The sensor control unit 22 is a function realized by executing a program by a computer circuit, and performs the following controls.

When the sensor control unit 22 detects the operation of the registration switch provided in the operation unit 32, the sensor control unit 22 generates an activation telegram for ID registration and instructs the wireless communication unit 24 to transmit it to the receiving repeater 12. to register the correspondence between the address and the node ID in the receiving repeater 12 that has received this activation telegram.

In addition, the sensor control unit 22 generates a telegram indicating a fire when, for example, the smoke concentration detection signal output from the sensor unit 28 exceeds a predetermined fire threshold, and instructs the wireless communication unit 24 to relay for reception. It controls transmission to the device 12. The message transmission in this case repeats message transmission in which the same message signal is continuously transmitted for a predetermined message transmission time, and message suspension in which the message transmission is suspended for a predetermined time.

Also, when detecting an event such as fire recovery, failure, or test, the sensor control unit 22 generates a telegram indicating the details of the detected event, and instructs the wireless communication unit 24 to transmit it to the receiving repeater 12 . control to allow

[Receiving repeater]
(Functional configuration of receiving repeater)
FIG. 3 is a block diagram showing the functional configuration of a receiving repeater. As shown in FIG. 3, the receiving repeater 12 functioning as a repeater node includes a relay control unit 36 and a wireless communication unit using a transmitting/receiving antenna 40 detachably connected to an antenna terminal 42 via a coaxial cable. 38 , a reception intensity detection unit 45 , an operation unit 44 , a display unit 46 , a line communication unit 48 and a power supply unit 50 .

The relay control unit 36 is assumed to be a computer circuit or the like having a CPU, a memory, various input/output ports, and the like. In the case of Japan, the radio communication unit 38 receives telegrams from the radio sensor 14 and exchanges telegrams with the setting device 20 in compliance with the standard of a specific low-power radio station in the 400 MHz band, for example. Send and receive. Also, the wireless communication unit 38 has an antenna terminal 42, and the antenna 40 can be replaced according to the installation location.

The format of the message received from the wireless sensor 14 by the wireless communication unit 38 is composed of a preamble, source ID, communication type, data and error check code, as described above.

Also, the format of the message transmitted/received between the wireless communication unit 38 and the setting device 20 is composed of a preamble, source ID, destination ID, command, data, and error check code.

The reception intensity detection unit 45 detects the reception intensity of the radio waves received by the wireless communication unit 38 and outputs a reception intensity detection signal to the relay control unit 36 .

The operation unit 44 includes a registration switch, an address setting DIP switch, and the like, and performs various settings necessary for relay control. The display unit 46 is provided with various indicator lights such as an indicator for indicating the set channel frequency, a power supply light, an alarm indicator light, and an obstacle light.

When the line communication unit 48 receives the telegram indicating the fire alarm based on the instruction from the relay control unit 36, the line communication unit 48 sends the alarm current to the detection line 16 from the P-type receiver 10 and transmits the fire alarm signal. When a failure is detected, the P-type receiver 10 outputs a failure alarm by disconnecting the sensing line 16 to create a pseudo disconnection state.

The relay control unit 36 is a function realized by executing a program by a computer circuit, and performs the following controls.

When the relay control unit 36 detects reception of a registration operation by the registration switch in a state in which a registered address with a node ID unregistered is displayed on the display unit 46 by operating the dip switch of the operation unit 44, the relay control unit 36 sets a registration waiting state. When an activation telegram for ID registration transmitted from the wireless sensor 14 is received through the wireless communication unit 38 in the state, the source ID included in the activation telegram is extracted, and the wireless detection corresponding to the unregistered address is detected. control to generate the table information registered as the node ID of the device 14.

Further, when the relay control unit 36 receives a fire telegram from the wireless sensor 14 to which it is assigned via the wireless communication unit 38, the relay control unit 36 instructs the line communication unit 48 to apply an alarm current to the sensor line 16. Control is performed to transmit a fire alarm signal to the P-type receiver 10 and output a fire alarm.

Further, when the relay control unit 36 receives the fire restoration telegram after receiving the fire telegram, it instructs the line communication unit 48 to stop the alarm current flowing through the sensor line 16 and transmit the fire alarm signal. control to stop

Further, when the relay control unit 36 receives a fault message from the wireless sensor 14 to which it is assigned via the wireless communication unit 38, the relay control unit 36 instructs the line communication unit 48 to disconnect the sensor line 16 to create a pseudo disconnection. By creating the state, the P-type receiver 10 side is controlled to output a fault alarm.

Further, when the relay control unit 36 receives a call message without ID designation from the setting device 20 via the wireless communication unit 38, the relay control unit 36 transmits a response message including its own ID according to a predetermined response control condition, and the setting device 20 , the ID of the receiving repeater 12 is registered, and the details of this ID registration control will be clarified later.

Further, when the relay control unit 36 receives a telegram including a request to read setting information by specifying an ID from the setting device 20 via the wireless communication unit 38, for example, the address and node ID of the wireless sensor 14 to which the relay control unit 36 is assigned , generates a message, instructs the wireless communication unit 38 to transmit the message to the setting device 20, and assigns the setting device 20 that receives this message to the wireless system. Table information indicating the correspondence between the addresses of the sensors 14 and node IDs is displayed, and editing work such as confirmation, change, addition, and deletion is performed. The setting information of the receiving repeater 12 includes setting information such as the channel frequency and the sensitivity of the wireless sensor 14, in addition to the table information indicating the correspondence between the address of the wireless sensor 14 and the node ID. .

Further, when the relay control unit 36 receives a telegram including a request to write setting information by specifying an ID from the setting device 20 via the wireless communication unit 38, the relay control unit 36 receives an edited message, such as an address and a node ID, included in the telegram. , and control to extract and register the table information indicating the correspondence between

Further, when a predetermined event is detected, the relay control unit 36 controls to register the detected event as history information. The history information registered by the relay control unit 36 includes the reception of a telegram from the wireless sensor 14 to which it is assigned, the radio wave intensity at the time of receiving the telegram, the transmission of the processing result of the telegram to the P-type receiver 10, and the like.

Further, when the relay control unit 36 receives a telegram including a request to read history information by specifying an ID from the setting device 20 via the wireless communication unit 38, the relay control unit 36 reads the history information, generates a telegram including the history information, and performs wireless communication. Control is performed to instruct the unit 38 to transmit to the setting device 20, and the history information is stored in the setting device 20 that has received this electronic message so that it can be used.

[Setting device]
(Functional configuration of setting device)
FIG. 4 is a block diagram showing the functional configuration of the setting device. As shown in FIG. 4, the setting device 20 functioning as a reader/writer for the receiving repeater includes a setting control section 60, a wireless communication section 62 connected to an antenna 64, a liquid crystal display 66, a touch panel 68, a display section 70, an operation 72, an I/F circuit section 74 that communicates and connects with an external device such as a server, a power supply section 76, a connector section 78, and a power connector section 80. FIG.

The setting control unit 60 is assumed to be a computer circuit or the like having a CPU, a memory, various input/output ports, and the like.

In the case of Japan, the radio communication unit 62 complies with the standard of a specific low-power radio station in the 400 MHz band, for example, and establishes a communication connection with the radio communication unit 38 of the receiving repeater 12 to establish a predetermined send and receive telegrams containing information on The format of the message transmitted/received to/from the setting device 20 by the wireless communication unit 62 includes a preamble, source ID, destination ID, command, data, and error check code.

The liquid crystal display 66 can display sufficient characters and images for confirming the ID registration of the receiving repeater 12, confirming the setting information, editing and rewriting the setting information, reading the history log, and the like. Further, by using the liquid crystal display 66 with the touch panel 68, it is possible to operate using the display screen. The display unit 70 is provided with various indicator lamps including a power lamp.

The operation unit 72 has operation keys for selecting a channel frequency for communicating with the receiving repeater 12, registering the ID of the receiving repeater 12, confirming setting information, re-registering by editing the setting information, Enables operations necessary for reading history logs, etc.

The I/F circuit unit 74 is connected to the manufacturer's management server or the like via the connector unit 78, and saves the setting information of the receiving repeater 12 read by the setting device 20 in the management server for backup, or logs history. Data transmission for storing the data is performed, for example, according to Ethernet (registered trademark).

The power supply unit 76 is equipped with a battery power supply, and when used in a portable manner, operates on the battery power supply. When data transmission is performed by communication connection with a management server or the like, an AC adapter is connected to the power connector unit 80 for use. do.

The setting control unit 60 is a function realized by executing a program by a computer circuit, and performs the following control, for example.

When the setting control unit 60 detects that the touch panel 68 or the operation unit 48 has accepted the ID registration operation of the receiving repeater 12, the setting control unit 60 performs predetermined control by wireless communication with the receiving repeater 12 within the range of radio waves. , control is performed to acquire and register the unknown ID of the receiving repeater 12 . The details of this ID registration control will be clarified later.

Further, when the setting control unit 60 detects that the touch panel 68 or the operation unit 72 has received a setting information readout operation, the setting control unit 60 generates a telegram specifying the ID of the receiving repeater 12 and including a setting information readout request, and wirelessly When the communication unit 62 is instructed to transmit to the receiving repeater 12 and a telegram including setting information is received from the receiving repeater 12 via the wireless communication unit 62, the setting information is extracted from the received telegram and the liquid crystal display 66 to control the display.

Further, when the setting control unit 60 detects that the registration request operation has been accepted after the setting information read out from the reception repeater 12 and displayed on the liquid crystal display 66 has been edited, including changes, additions, and deletions, the registration request is received. and the ID of the receiving repeater 12 including the edited setting information is generated, the wireless communication unit 62 is instructed to control the transmission to the receiving repeater 12, and the received receiving relay The device 12 is made to register the setting information.

When the setting control unit 60 receives an activation telegram transmitted by setting the registration mode associated with the operation of the registration switch of the wireless sensor 14, the setting control unit 60 extracts the sender ID from the activation telegram and sets it to the liquid crystal display 66 as a node ID. to control the display. This allows the configuration device 20 to automatically acquire the node ID of the wireless sensor 14 .

Further, when the setting control unit 60 detects that the touch panel 68 or the operation unit 72 has received a history information readout operation, the setting control unit 60 generates a message including a history information readout request specifying the ID of the receiving repeater 12, and wirelessly When the communication unit 62 is instructed to transmit to the receiving repeater 12 and a telegram including history information is received from the receiving repeater 12 via the wireless communication unit 62, the history information is extracted from the received telegram and the liquid crystal display 66 Controls to display and save.

In addition, the setting control unit 60 reads and saves the history information from the reception repeater 12, and in a state where it can be connected to the server via the connector unit 78, transfers the history information by the touch panel 68 or the operation unit 72. When it detects that an operation has been accepted, it reads the history information currently stored, generates a telegram containing the history information, instructs the I/F circuit unit 74 to transmit it to the server, and transfers the history information. Store and manage it on the server that received it, and make it available on the server for cause analysis of non-fire alarms.

[ID Registration by Response Telegram from Repeater Node Corresponding to Receiving Strength of Call Telegram]
As shown in FIG. 1, for example, when a staff member carrying a setting device 20 goes near the receiving repeater 14-1 on the first floor and does not know the IDs of the receiving repeaters 12-1 to 12-3, In order to read and display the table information indicating the correspondence between the addresses of the wireless sensors 14 and the node IDs registered in the receiving repeaters 12-1 to 12-3 by the setting device 20, the information is first known. It acquires and registers the IDs of the receiving repeaters 12-1 to 12-3 that do not exist.

As the ID registration processing of the receiving repeater 12 by the setting device 20, in this embodiment, ID registration is performed by the response message from the receiving repeater 12 corresponding to the reception strength of the calling message from the setting device 20. .

(Control function of setting device and receiving repeater)
When the setting control unit 60 of the setting device 20 shown in FIG. 3 detects that the touch panel 68 or the operation unit 72 has accepted the ID registration operation of the receiving repeater 20, a predetermined initial value gradually decreases from a predetermined value. Calling telegrams without ID designation set with response reception strength Eth are sequentially transmitted to the receiving repeater 12, and when a response telegram to the calling telegram is received from the receiving repeater 12, the sender included in the response telegram The ID is acquired as the ID of the receiving repeater 12 and registered in the memory, and a sleep request telegram specifying the registered ID is transmitted to the receiving repeater 12, and the receiving repeater 12 within the range of radio waves is transmitted. When the ID registration is completed, control is performed to transmit the recovery telegram to the repeater node.

Further, the relay control unit 36 of the receiving repeater 12 shown in FIG. 2 designates the reception strength E detected by the reception strength detection unit 45 when receiving a call telegram without ID designation from the setting device 20 in the call telegram. If the response reception strength Eth or higher is equal to or greater than Eth, a response message including its own ID is transmitted to the setting device 20, and if a sleep request message is received from the setting device 20 after transmission of the response message, the message transmission operation is suspended and the message is sent. When a recovery message is received from the setting device 20 while the operation is suspended, control is performed to cancel the suspension.

(ID registration operation of receiving repeater by setting device)
FIG. 5 is a time chart showing the operation of acquiring and registering the ID of the receiving repeater by a call message without ID specification in which the response reception strength is set from the setting device. It looks like this:

As shown in FIG. 1, for example, a staff member carrying the setting device 20 goes near the receiving repeater 12-1 on the 1st floor, and uses the touch panel 68 or the operation unit 72 of the setting device 20 to enter the ID of the receiving repeater 12. When the registration operation is performed, as shown in step S1 (hereinafter "step" is omitted) of FIG. is vacant), and instructs the wireless communication unit 62 to transmit it.

The calling telegram transmitted by the setting device 20 is received by the receiving repeater 12-1 on the 1st floor and the receiving repeater 12-2 on the 2nd floor, for example, as indicated by S2 and S5. Received intensities E1 and E2 at the respective wireless communication units 38 are detected. In this case, since the distance from the setting device 20 is that the receiving repeater 12-1 is close and the receiving repeater 12-2 is far, the reception strength has a relationship of E1>E2.

In S3, the relay control unit 36 of the receiving repeater 12-1 compares the response reception strength Eth included in the received call message with the reception strength E1 detected by the reception strength detection unit 45, and determines that the reception strength E1 is Since it is equal to or greater than the response reception strength Eth, the process proceeds to S4 and transmits to the setting device 20 a response telegram in which the self ID is set as the source ID.

On the other hand, the relay control unit 36 of the receiving repeater 12-2 compares the response reception strength Eth included in the calling message received in S6 with the reception strength E1 detected by the reception strength detection unit 45, and determines the reception strength E1. is less than the response reception strength Eth, the response telegram with its own ID set as the source ID is not transmitted.

The setting control unit 60 of the setting device 20 receives the response message from the receiving repeater 12-1 in S7, extracts the transmission source ID as the ID of the receiving repeater 12-1, and registers it in the memory. The registration ID is displayed on the liquid crystal display 66 .

Subsequently, in S8, the setting control unit 60 of the setting device 20 generates a sleep request message in which the ID registered in the memory is set as the destination ID, and instructs the wireless communication unit 62 to transmit it. The sleep request message from the setting device 20 is effectively received by the receiving repeater 12-1 in S9 by matching the transmission destination ID and the self ID. Pause the message transmission operation by

Subsequently, the setting control unit 60 of the setting device 20 changes the response reception strength Eth to Eth=Eth−ΔE, which is reduced by a predetermined value ΔE in S10, and sets the changed (decreased) response reception strength Eth in S11. send a calling message.

The call telegram transmitted by the setting device 20 for the second time is received, for example, by the receiving repeater 12-1 on the 1st floor and the receiving repeater 12-2 on the 2nd floor as in S12 and S14. Since the intermediary device 12-1 stops the telegram transmission function by the sleep operation as in S13, it does not transmit the response telegram.

On the other hand, the receiving repeater 12-2 determines that the reception strength E2 detected by the reception strength detection unit 45 in S15 is greater than or equal to the reduced response reception strength Eth included in the calling message from the setting device 20, Proceeding to S<b>16 , a response telegram with its own ID set as the source ID is transmitted to the setting device 20 .

The setting control unit 60 of the setting device 20 receives the response message from the receiving repeater 12-2 in S17, extracts the transmission source ID as the ID of the receiving repeater 12-2, and registers it in the memory. The registration ID is displayed on the liquid crystal display 66 .

Subsequently, the setting control unit 60 of the setting device 20 generates a sleep request telegram in which the ID registered this time in the memory in S18 is set as the transmission destination ID, and instructs the wireless communication unit 62 to transmit it. The sleep request message from the setting device 20 is effectively received by the receiving repeater 12-2 in S19 because the destination ID matches the self ID 2, and the relay control unit 36 sends the wireless communication unit 38 based on the sleep request message. Pause the message transmission operation by

Subsequently, the setting control unit 60 of the setting device 20 changes the current response reception strength Eth to Eth=Eth−ΔE, which is reduced by a predetermined value ΔE in S20, and the ID that sets the changed (decreased) response reception strength Eth in S21. Send an unspecified calling message.

If there is no receiving repeater that receives the call telegram sent by the setting device 20 for the third time, display of any further registration IDs on the liquid crystal display 66 of the setting device 20 stops, and the staff can use the setting device It is determined that the ID registration of all the receiving repeaters 12 at positions within which the radio wave from 20 reaches has been completed, and the touch panel 68 or the operation section 72 is operated to complete the registration.

When the setting control unit 60 of the setting device 20 determines the registration end operation at S22, at S23, the setting control unit 60 sequentially transmits recovery telegrams in which the registered IDs of the receiving repeaters 12-1 and 12-2 are set to the transmission source ID1. The recovery telegram from the setting device 20 is effectively received by the receiving repeaters 12-1 and 12-2 as in S24 and S25, and the respective relay control units 36 cancel the sleep operation and transmit the resting telegram. Operation is enabled, and the normal state before ID registration is restored.

Once the setting device 20 has acquired and registered the IDs of the receiving repeaters 12-1 and 12-2 in this way, a read command or a writing command designating the IDs of the receiving repeaters 12-1 and 12-2 can be issued. By transmitting a telegram containing a command, it becomes possible to read and write necessary data from the receiving repeaters 12-1 and 12-2.

When the call telegram is transmitted while the response reception strength Eth is decreased by a predetermined value ΔE, when the reception strength E becomes equal to or greater than the response reception strength Eth at a plurality of receiving repeaters 12, the transmission timings of the response telegrams are overlapped. Collision occurs that makes the device 20 unreceivable, but as shown in FIG. By appropriately setting the value of ΔE that gradually decreases the response reception strength Eth, for example, by setting the value of ΔE to a small value, the reception strength E of the plurality of receiving repeaters 12 can be reduced in response. It is possible to reliably avoid collisions of response messages that occur when the reception intensity is equal to or greater than Eth.

Further, when the reception intensity E of the plurality of receiving repeaters 12 becomes equal to or greater than the response reception intensity Eth and collision of response messages occurs, the staff changes the location and transmits the call message from the setting device 20. , it is also possible to avoid collision of response messages.

(Benefits of the ID registration operation of the receiving repeater by the setting device)
According to the ID registration operation of the receiving repeater 12 by the setting device 20 shown in FIG. When received, the response message is transmitted only when the reception intensity E is equal to or higher than the response reception intensity Eth specified in the call message, and the distances from the setting device 20 to the installation locations of the plurality of receiving repeaters 12 are different. Therefore, by gradually decreasing the response reception strength Eth specified in the call message, the response message is transmitted in order from the shortest receiving repeater 12, and the transmission timing of the plurality of receiving repeaters 12 is changed. are not overlapped, and an ID can be acquired from a response telegram received for each receiving repeater and registered.

Further, the setting device 20 transmits a sleep request telegram specifying an ID to the receiving repeater 12 that has transmitted the response telegram, and suspends the transmission operation for subsequent call telegrams, thereby changing the response reception altitude in stages. To avoid unnecessary transmission of response telegrams from a plurality of receiving repeaters 12 even when the number of receiving repeaters 12 is reduced to 12, and to enable response telegrams to be transmitted in turn from receiving repeaters 12 closer to each other.

Furthermore, when the ID registration of all the receiving repeaters 12 within the range of the radio wave from the setting device 20 is completed, the recovery telegram is transmitted, thereby canceling the suspension of the transmission operation due to the reception of the sleep request telegram. It is possible to return to the operating state of

[ID registration by message response by channel frequency corresponding to ID of receiving repeater]
As another embodiment of the ID registration processing of the receiving repeater 12 by the setting device 20, in response to the calling message from the setting device 20, the setting device 20 receives a response message by transmitting a channel frequency corresponding to the ID of the receiving repeater 12. 20, ID registration is performed.

The configuration of the receiving repeater 12 in this embodiment is the same configuration as in FIG. 36, a function is added to enable channel frequency switching within a predetermined frequency range.

(Control function of setting device and receiving repeater)
When the setting control unit 60 of the setting device 20 shown in FIG. 4 detects reception of the ID registration operation of the receiving repeater 20 by the touch panel 68 or the operation unit 72, a call telegram without ID designation is generated according to the initially set channel frequency. is sent to the receiving repeater 12, and when a response message from the receiving repeater 12 to the calling message is received by sweeping the channel frequency within a predetermined frequency range, the receiving relay included in the response message The sender ID of the device 12 is obtained and registered as the ID of the receiving repeater 12, and when the ID registration of all the receiving repeaters 12 within the range of radio waves is completed, the recovery message is sent by sweeping the channel frequency. to control the transmission of

Further, when the relay control unit 36 of the reception repeater 12 shown in FIG. 2 receives a calling telegram from the setting device 20 with the initially set channel frequency, it uses a predetermined response channel frequency corresponding to its own ID. A response message including its own ID is transmitted to the setting device 20, and control is performed to return the channel frequency to the initial setting when a recovery message is received according to the response channel frequency.

FIG. 6 is an explanatory diagram showing a list of correspondences between IDs of receiving repeaters and channel frequencies. As shown in FIG. 6, in this example, channel frequencies A to H are set corresponding to binary values 000 to 111 by b3b2b1 of the lower 3 bits in the ID of the receiving repeater 12. is switched to the channel frequency corresponding to the ID of , and a response telegram is transmitted to the setting device 20 .

The number of bits of the ID used for selecting the channel frequency can be appropriately determined as necessary so that the number of selectable channels is 48 or less. , 32 channels can be selected using at most the lower 5 bits.

For this reason, the wireless communication unit 38 of the reception repeater 12 shown in FIG. In addition, the wireless communication unit 62 of the setting device 20 shown in FIG. It has the operation function of

(ID registration operation of receiving repeater by setting device)
FIG. 7 is a time chart showing the operation of acquiring and registering an ID from a response message with a channel frequency corresponding to the ID of the receiving repeater by a call message without ID designation from the setting device, and FIG. 4 will be explained as follows.

As shown in FIG. 1, for example, a staff member carrying the setting device 20 goes near the receiving repeater 14-1 on the 1st floor, and uses the touch panel 68 or the operation unit 72 of the setting device 20 to enter the ID of the receiving repeater 12. When the registration operation is performed, as shown in S101 of FIG. 7, the setting control unit 60 of the setting device 20 generates a call telegram with no ID specified (destination ID is empty) according to the initially set channel frequency, The wireless communication unit 62 is instructed to transmit.

The calling telegram transmitted by the setting device 20 is received by the receiving repeater 12-1 on the 1st floor and the receiving repeater 12-2 on the 2nd floor, for example, as shown in S102 and S104. In S103, the relay control unit 36 of the receiving repeater 12-1 that has received the calling telegram selects the channel frequency B corresponding to, for example, "001", which is the lower 3 bits of its own ID from the correspondence shown in FIG. It selects and sets it in the wireless communication unit 38, and transmits to the setting device 20 using the channel frequency B a response message in which its own ID is set as the source ID.

On the other hand, the relay control unit 36 of the receiving repeater 12-2 that has received the calling telegram selects the channel frequency corresponding to, for example, "101", which is the lower 3 bits of its own ID1 from the correspondence shown in FIG. F is selected and set in the wireless communication unit 38, and a response telegram with its own ID set as the source ID is transmitted to the setting device 20 using the channel frequency F.

The setting control unit 60 of the setting device 20 repeats the sweep operation of the channel frequency to be received by sequentially switching the frequency channel in the frequency range of the channel frequencies A to H for transmitting the response message from the receiving repeater 12 in S106. If it is determined that a response message has been received on the channel frequency B or F switched in S107, the process proceeds to S108, where the source ID of the received response message is extracted as the ID of the receiving repeaters 12-1 and 12-2. Along with the registration in the memory, the registration IDs of the receiving repeaters 12-1 and 12-2 are displayed on the liquid crystal display 66. FIG.

When the ID registration of all the receiving repeaters 12-1 and 12-2 to which the call message from the setting device 20 arrives is completed, the display of the registered IDs on the liquid crystal display 66 of the setting device 20 stops. The staff judges that the ID registration of all the receiving repeaters 12 located within the reach of radio waves from the setting device 20 is completed, and performs a registration completion operation using the touch panel 68 or the operation section 72 .

When the setting control unit 60 of the setting device 20 determines the registration end operation in S109, the setting control unit 60 sequentially uses the channel frequencies B and F used for communication of the response message in S110 to transmit the recovery message. The recovery message from the setting device 20 is effectively received by the receiving repeaters 12-1 and 12-2 as in S111 and S112, and the respective repeater control units 36 restore the channel frequencies B and F to their initial settings.

Once the setting device 20 has acquired and registered the IDs of the receiving repeaters 12-1 and 12-2 in this way, a read command or a writing command designating the IDs of the receiving repeaters 12-1 and 12-2 can be issued. By transmitting a telegram containing a command, it becomes possible to read and write necessary data from the receiving repeaters 12-1 and 12-2.

If the lower 3 bits of the IDs set in a plurality of receiving repeaters 12 within the range of radio waves from the setting device 20 match, the selection of the same channel frequency may cause communication collision of response messages. However, when the setting device 20 detects a communication collision of the response message, for example, a call message including an instruction to shift the 3 bits for selecting the channel frequency of the receiving repeater 12 to the higher 3 bits is transmitted. By doing so, it is possible to control the channel frequencies to be used for transmission of response messages to be different, and to reliably avoid collisions of response messages.

(Benefits of the ID registration operation of the receiving repeater by the setting device)
According to the ID registration operation of the receiving repeater 12 by the setting device 20 shown in FIG. When receiving, the setting device 20 transmits response messages using mutually different channel frequencies corresponding to its own ID, and the setting device 20 individually responds to the response messages from the different receiving repeaters 12 by frequency sweeping sequentially switching the channel frequencies. Even if the transmission timings of a plurality of receiving repeaters 12 overlap, the channel frequencies are different, so that the ID can be obtained from the response message received for each receiving repeater and registered.

In addition, when the ID registration of all the receiving repeaters 12 within the reach of radio waves from the setting device 20 is completed, a recovery telegram is transmitted to return the channel frequency to the initial setting and normal operation state. enable

[Modification of the present invention]
(repeater node)
The above embodiment takes as an example the case where the setting device acquires and registers the ID of the receiving repeater that functions as a repeater node, but the present invention is not limited to this, and any suitable device having a wireless communication function is used. This includes the case where the device ID is acquired by the setting device and registered.

(R type receiver)
In the above embodiment, the receiving repeater is connected to the sensor line from the P-type receiver as the fire receiver, but the receiving repeater is connected to the R-type receiver having a data transmission function. may

(setting device)
In the above embodiment, a dedicated setting device is used to access the receiving repeater for reading and writing. Equipment may be used.

(others)
Moreover, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not limited by the numerical values shown in the above embodiments.

10: P-type receivers 12-1 to 12-3: Receiving relays 14-1 to 14-3: Wireless sensor 16: Sensor line 20: Setting device 22: Sensor control units 24, 38, 62 : Wireless communication unit 28: Sensor units 30, 46, 70: Display units 32, 44, 72: Operation unit 36: Relay control unit 40: Antenna 42: Antenna terminal 45: Reception intensity detection unit 48: Line communication unit 60: Setting Control unit 66: liquid crystal display 68: touch panel

Claims (4)

A wireless sensor node assigned to itself and a repeater node for relaying communication with the receiver via the sensor line are connected to each of the plurality of sensor lines connected to the receiver. A setting device for a wireless disaster prevention system,
It is characterized by being portable and used by a staff member, capable of direct wireless communication with any of the plurality of repeater nodes, and collecting history information stored in the repeater node by wireless communication through the direct wireless communication. setting device.
A wireless sensor node assigned to itself and a repeater node for relaying communication with the receiver via the sensor line are connected to each of the plurality of sensor lines connected to the receiver. A setting device for a wireless disaster prevention system,
It is characterized by being portable and used by an attendant, capable of direct wireless communication with any of the plurality of repeater nodes, and capable of selecting a channel frequency for wireless communication with the repeater node through the direct wireless communication. setting device.
A wireless sensor node assigned to itself and a repeater node for relaying communication with the receiver via the sensor line are connected to each of the plurality of sensor lines connected to the receiver. A setting device for a wireless disaster prevention system,
It is carried and used by a staff member and is capable of direct wireless communication with any of the plurality of repeater nodes, and through the direct wireless communication, the reception status history of the repeater node and the A setting device that collects at least one of radio wave intensity of wireless communication between a repeater node and the sensor node by wireless communication.
4. The setting device according to claim 1, wherein the setting device does not communicate with the receiver by radio.

Images