JP2009223361A - Disaster prevention monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable information transmission among terminals of other facilities and monitoring devices by utilizing a facility environment with fire sensors for fire alarms having transmission functions allowing a receiver to grasp the installation location of the fire alarm. <P>SOLUTION: An event terminal device 20 of another facility detects a predetermined event other than fire to transmit an up event signal to a fire sensor 14. The sensor 14 transmits the up event signal received from the terminal device 20 to a receiver 10 via a fire alarm transmission line 12, and also transmits down event information received from the receiver 10 to the terminal device 20. The receiver 10 receives the up event signal from the sensor 14 to transmit it to the corresponding another facility monitoring device 16, and also receives the down event signal from the monitoring device 16 to transmit it to the terminal device 20 through the sensor 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a disaster prevention monitoring system for monitoring an abnormality such as a fire by connecting a fire sensor having a transmission function to a sensor line drawn from a receiver.

  Conventional disaster prevention monitoring systems have receivers installed at disaster prevention centers, and fire detectors, transmitters, local sound equipment, and smoke control equipment are installed on the terminal side, which is the alert area, and each is connected to the receiver. A system is configured by connecting to a transmission line.

  In such a disaster prevention monitoring system, when a fire detector is activated and an operation indication is made at the receiver, the administrator of the disaster prevention monitoring system goes to the operation area displayed on the receiver of the disaster prevention center and Check the situation, return to the disaster prevention center after confirmation, or contact another administrator and perform a fire confirmation operation with the receiver to sound the district acoustic alarm, evacuation guidance by emergency broadcast, report to the fire engine, etc. It is the operation to take appropriate measures.

On the other hand, in facilities such as buildings where disaster prevention monitoring systems are installed, other facilities for monitoring and control, such as security systems, air conditioning systems, and entrance / exit management systems, are installed at the same time. The system is constructed by laying lines (wiring).
JP 2006-048211 A JP-A-5-006492

  However, in the case of a plurality of facilities including a disaster prevention monitoring system installed in the same building as described above, it is necessary to construct a system by laying dedicated wiring for each facility. Is on. Also, in this type of equipment, it is necessary to grasp the location of the terminal for control or monitoring of equipment such as sensors installed in the terminal in the equipment monitoring device, and a mechanism for grasping the location There is a problem that it becomes a large-scale system.

The present invention makes it possible to transmit information between a terminal of another facility and a monitoring device by using a facility environment for disaster prevention monitoring provided with a fire detector having a transmission function capable of grasping the installation location by a receiver. The purpose is to provide a disaster prevention monitoring system.

The present invention relates to a disaster prevention monitoring system for monitoring a fire by connecting a fire detector having a transmission function to a transmission line drawn from a receiver.
A terminal device of another facility that detects a predetermined event other than a fire and transmits an upstream event signal;
A detector relay unit provided in the fire detector, transmits an upstream event signal received from the terminal device to the receiver via a transmission line, and transmits downstream event information received from the receiver to the terminal device;
Installed in the receiver, receives the upstream event signal from the fire detector and transmits it to the monitoring device of the corresponding other equipment, and also receives the downstream event signal from the monitoring device of the other equipment and fires via the transmission line A receiver relay that transmits to the sensor;
It is provided with.

Here, the terminal device transmits an upstream event signal including a destination identifier and event information for specifying other equipment of the transmission destination,
The sensor relay unit transmits the upstream event signal received from the terminal device including the sensor address to the receiver,
The receiver relay unit converts the detector address of the upstream event signal received from the fire detector into area information indicating the event occurrence location, and the upstream event signal including the time information indicating the event occurrence time is identified by the destination identifier. To other equipment monitoring devices.

The monitoring device of other equipment generates a downstream event signal including area information, event information, and a transmission source identifier, and transmits it to the receiver.
The receiver relay unit converts the area information of the downlink event signal received from the monitoring device of other equipment into a sensor address and transmits it to the transmission line.
The sensor relay unit receives a downstream event signal designating its own sensor address and transmits a downstream event signal including event information and a transmission source identifier to the terminal device,
The terminal device decodes the downstream event signal received from the sensor relay unit, and performs control, display, or processing according to the event information.

Information is transmitted and received between the terminal device and the sensor relay unit by wireless communication, infrared communication, or ultrasonic communication.

  According to the present invention, using the fire alarm line transmission system capable of grasping the installation location of the fire detector in the receiver, both of the information capable of grasping the terminal installation location between the terminal device and the monitoring device of other equipment It is possible to construct a system for other equipment without laying a dedicated line transmission system in the other equipment, and the equipment cost for system construction can be greatly reduced.

  In addition, by using the fire alarm line transmission system, power backup by a battery is performed even in the event of a power failure, so that the system operation of other facilities can be performed during a power failure and high reliability can be ensured.

Furthermore, additional information such as terminal location and time information can be centrally managed by the disaster prevention monitoring system and provided to other equipment, so maintenance such as terminal location management and time management is not required in other equipment. Can be simplified as a whole, and the operation and management of each facility can be performed efficiently.

  FIG. 1 is an explanatory view showing an embodiment of a disaster prevention monitoring system according to the present invention. In FIG. 1, a plurality of fire alarm transmission lines 12 are drawn from a receiver 10 installed in a disaster prevention center or the like toward a warning area in a building, and the fire alarm transmission line 12 has a transmission function. The fire detector 14 provided is connected.

  Each of the fire detectors 14 has a unique detector address set in advance. The sensor address is, for example, an 8-bit address. Therefore, it is possible to connect up to 255 fire sensors 14 per line of the fire alarm transmission line 12.

  During normal monitoring, the receiver 10 transmits a polling command for normal monitoring in which detector addresses are sequentially specified. When the fire detector 14 receives a polling command that matches its own set address, Perform normal monitoring response. Therefore, in the receiver 10, when there is a fire detector 14 that has not responded to the polling command, a failure of the detector can be detected.

  When the fire detector 14 receives a batch A / D conversion command that is repeatedly output at every polling command transmission period for all the detector addresses of the receiver 10, analog such as smoke concentration and temperature in the built-in fire detection mechanism. The detection data is sampled, compared with a predetermined fire level, and a fire is detected when the fire level is exceeded.

  When the fire detector 14 determines a fire from the sampling result based on the batch AD conversion command, an interrupt signal is transmitted to the receiver 10 at the timing of the subsequent polling command designating its own detector address. The interrupt signal is a signal which is not normally used so that the response bit is all 1.

  When the receiver 10 receives the interrupt signal from the fire detector 14 side, it issues a group search command, receives an interrupt response from the group including the fire detector that has detected the fire, determines the group, and then continues. The individual fire detectors included in the determined group are sequentially polled by specifying addresses, and by receiving a fire response, the detector address of the fire detector 14 that detected the fire is recognized, and a fire alarm is issued. Will perform the action.

  A group address is set for each of up to 255 fire detectors 14 connected to the fire alarm transmission line 12, for example, and a fire is detected in response to a group search command from the receiver 10. An interrupt response is made from the group including the sensor so that the group including the fire sensor 14 detecting the fire can be identified.

  In addition to the disaster prevention monitoring system in which a fire detector 14 having a transmission function is connected to the receiver 10 via the fire report transmission line 12, in this embodiment, a security system and an air conditioning system are installed in the same facility. Such other equipment is installed at the same time, and other equipment monitoring devices 16 and 18 are installed corresponding to the other equipment.

  In the alert area where the fire detector 14 is installed, an event terminal device 20 is installed corresponding to the other equipment monitoring device 16, and an event terminal device 22 is installed corresponding to the other equipment monitoring device 18. Yes.

  The event terminal devices 20 and 22 installed corresponding to the other equipment monitoring devices 16 and 18 are, for example, emergency push button switches and sensors, and detect the push button operation and the environmental state corresponding to the other equipment to prevent disasters. Event information is transmitted to each of the other equipment monitoring devices 16 and 18 using the transmission system of the monitoring system.

  The event signals sent from the event terminal devices 20 and 22 to the other equipment monitoring devices 16 and 18 are hereinafter referred to as upstream event messages (upstream event signals). On the other hand, the event signal sent from the other equipment monitoring devices 16 and 18 to the event terminal devices 20 and 22 is hereinafter referred to as a downlink event message (downlink event signal).

  Each of the event terminal devices 20 and 22 is connected to the fire detector 14 by a wireless line. For example, when an event due to a push button operation occurs in the event terminal device 20, an upstream event message having a vendor identifier (vendor ID) indicating a transmission destination (destination) and event information indicating on / off of the emergency push button is generated and transmitted wirelessly. And received by the fire detector 14 in the communicable area.

  The fire detector 14 that has received the upstream event message from the event terminal device 20 converts the upstream event message into the upstream event message including the sensor address in the upstream event message, and transmits the upstream event message to the receiver 10. Transmission of the upstream event message from the fire detector 14 to the receiver 10 is performed according to the same transmission protocol as when the fire was detected by the fire detector 14.

  That is, when the fire detector 14 receives an upstream event message from the event terminal device 20, an interrupt signal is transmitted in the same manner as when a fire is detected in response to reception of a polling command designating a sensor address from the receiver 10.

  When receiving the interrupt signal from the fire detector 14, the receiver 10 transmits a group search command, and receives an interrupt response from the fire detector that has received the upstream event message, thereby specifying the group address.

  When the group address is specified, polling is performed by sequentially specifying the sensor addresses of the eight fire detectors 14 included in the group. For this reason, the fire detector 14 receiving the upstream event message fires the upstream event message including the sensor address by determining the self-address by polling specifying the sensor address in the group from the receiver 10. The information is transmitted to the receiver 10 via the information transmission line 12.

  Other equipment monitoring devices 16 and 18 are connected to the receiver 10 via the transmission line 15. As the transmission line 15, for example, a transmission line to which a transmission interface such as RS-232C or RS-485 is applied is used. Ethernet (R) or the like may be used.

  When the receiver 10 receives the upstream event message from the fire sensor 14, the receiver 10 converts the sensor address included in the upstream event message into area information indicating the installation location of the fire sensor 14. Also, a time stamp is acquired as time information indicating the time when the upstream event message is received.

  The upstream event message acquired from the fire detector 14 includes a vendor identifier (vendor ID) indicating the transmission destination and event information indicating ON / OFF of the emergency push button. An upstream event message to which the area information and time information are added is generated, and the upstream event message is transmitted to, for example, the other equipment monitoring device 16 that is a transmission destination specified by the vendor identifier via the transmission line 15.

  The other equipment monitoring device 16 decodes the upstream event message received from the receiver 10, and displays according to the event information generated in the event terminal device 20 based on the area information, time information, and event information included therein. Control, processing, storage, etc. are performed.

  In addition, a downlink event message can be transmitted from the other equipment monitoring devices 16 and 18 to the event terminal devices 20 and 22 provided in correspondence with each other for appropriate processing such as display and control.

  For example, when information is sent from the other equipment monitoring device 16 to the event terminal device 20 to be displayed, this display information is used as event information, and a downlink event message including area information indicating the installation location of the event terminal device 20 is transmitted. The data is transmitted to the receiver 10 via the line 15.

  When receiving the downstream event message, the receiver 10 identifies the sensor address from the area information, and transmits the downstream event message to the addressed fire sensor 14 at the polling timing of the corresponding fire sensor.

  When the fire detector 14 receives the down event message, the fire detector 14 extracts the event information contained therein and transmits it to the event terminal device 20 as a down event message. The event terminal device 20 performs, for example, a display operation in the event terminal device 20 based on the event information included in the received downlink event message.

  FIG. 2 is a block diagram showing details of the receiver, fire detector, event terminal device, and other equipment monitoring device of FIG. In FIG. 2, the receiver 10 is provided with a CPU 24, and a fire monitoring processing unit 36 and a receiver relay unit 38 are provided as functions realized by executing a program.

  A wired transmission unit 26 is provided for the CPU 24, and the fire alarm transmission line 12 is drawn from the wired transmission unit 26 to connect the fire detector 14. Further, a wired transmission unit 28 is provided for the CPU 24, and is connected from the wired transmission unit 28 to the other equipment monitoring devices 16 and 18 via the transmission line 15.

  Further, for the CPU 24, a fire monitoring database 30, an area management table 32, and another equipment management table 34 are provided. The fire monitoring database 30 stores various types of information necessary for fire monitoring, for example, types such as smoke and heat in the fire detector 14, and interlocking information for a control device (not shown).

  The area management table 32 stores information for converting the sensor address into a warning area indicating a sensor installation location, a block, floor information, and the like. The other equipment management table 34 stores other equipment names corresponding to the vendor identifier included in the upstream event message.

  The fire detector 14 connected to the receiver 10 is provided with a CPU 40, and the CPU 40 is provided with a fire detection unit 52 and a detector relay unit 54 as functions executed by a program.

  A wired transmission unit 42 is provided for the CPU 40, and the fire alarm transmission line 12 is connected to the wired transmission unit 42 so as to perform bidirectional transmission of messages with the receiver 10. The power supply unit 44 provided in the fire detector 14 receives power supply from the receiver 10 via the fire report transmission line 12 and supplies power to the inside of the detector.

  As for the power supply from the receiver 10 to the fire detector 14, DC power is supplied by rectification of commercial AC 100 volts in normal times, but a battery power supply (not shown) is provided to the receiver 10 in preparation for a power failure. Is provided as a standby power source, and power backup is performed to compensate for the monitoring operation of the system for 30 minutes, for example, in the event of a power failure.

  A storage unit 46 and a wireless transmission unit 48 are further provided for the CPU 40 of the fire detector 14. A preset sensor address is stored in the storage unit 46, and a nonvolatile memory is used as the storage unit 46.

  The wireless transmission unit 48 wirelessly transmits an uplink event message and a downlink event message to and from the event terminal 20 via the antenna 50. The wireless transmission unit 48 corresponds to a low-power wireless station, and performs wireless transmission with a transmission power of 10 milliwatts or less using a specific frequency of 400 MHz band, for example.

  The event terminal device 20 is provided with a CPU 55, and the CPU 55 is provided with a terminal processing unit 56 as a function realized by executing a program. In this embodiment, a wireless transmission unit 60 including an emergency push button 58, a display unit 66, a storage unit 64, and an antenna 62 is provided for the CPU 55.

  In the event terminal device 20, when the emergency push button 58 is operated, the terminal processing unit 56 of the CPU 55 detects the event, generates event information, and indicates the transmission destination of the event stored in advance in the storage unit 64. An upstream event message including the vendor identifier of the other equipment monitoring device 16 is generated, a transmission signal according to the specifications of the low power wireless station is generated from the wireless transmission unit 60, and transmitted from the antenna 62.

  On the other hand, terminal monitoring units 70 and 74 and terminal management tables 72 and 76 are provided in each of the other equipment monitoring devices 16 and 18 connected to the receiver 10 via the transmission line 15. The functions of the terminal monitoring units 70 and 74 have a processing procedure depending on the monitoring processing content of each facility. The terminal management tables 72 and 76 store a terminal identifier (terminal ID), type, and area information as information necessary for transmitting a downlink event message to the event terminal devices 20 and 22.

  In FIG. 2, the operation as the disaster prevention monitoring system is performed by a fire monitoring processing unit 36 provided in the CPU 24 of the receiver 10 and a fire detection unit 52 provided in the CPU 40 of the fire detector 14.

  On the other hand, the processing for transmitting the up event message and the down event message between the event terminal device 20 and the other equipment monitoring devices 16 and 18 is performed by the receiver relay unit 38 provided in the CPU 24 of the receiver 10 and the fire detection. This is performed by a sensor relay unit 54 provided in the CPU 40 of the device 14.

  That is, the terminal processing unit 56 provided in the CPU 55 of the event terminal device 20 detects the predetermined event other than the fire, for example, the button operation of the emergency push button 58, and sets the other equipment monitoring device 16 that identifies the other equipment of the transmission destination. An upstream event message including a vendor identifier as a destination identifier and event information indicating ON / OFF of the push button 58 is wirelessly transmitted.

  The fire detector 14 that has received the upstream event message from the event terminal device 20 transmits the received upstream event message including the sensor address to the receiver 10 by the sensor relay unit 54 of the CPU 40.

  The receiver relay unit 38 provided in the CPU 24 of the receiver 10 converts the sensor address of the upstream event message received from the fire sensor 14 into area information indicating the event occurrence location, and time information indicating the event occurrence time. The upstream event message including (time stamp) is transmitted to the other equipment monitoring device 16 determined by the vendor identifier that is the destination identifier.

  When the terminal monitoring unit 70 of the other equipment monitoring device 16 receives the upstream event message from the receiver 10, the upstream event information transmitted by the event terminal device 20 based on the area information, time information, and event information included therein. Processes such as monitoring, control, and display corresponding to.

  On the other hand, when a downlink event message is transmitted from the other equipment monitoring device 16 to the event terminal device 20, the terminal monitoring unit 70 refers to the terminal monitoring table 72, the area information indicating the installation location of the event terminal device 20, and the event A downlink event message including processing information for the terminal device 20 such as display information is generated and transmitted to the receiver 10.

  The receiver 10 converts the area information of the down event message by the receiver relay unit 38 into a sensor address by referring to the area monitoring table 32, and converts the down event message to the fire detector 14 at the polling timing of the converted sensor address. Send to.

  The detector relay unit 54 of the fire detector 14 extracts event information from the downstream event message received from the receiver 10, identifies the event terminal based on the vendor ID, and transmits the event terminal to the event terminal device 20. From the event information included in the downlink event message received by the terminal processing unit 56, the event terminal device 20 causes the display unit 66 to display the content instructed by the other equipment monitoring device 16, for example.

  FIG. 3 is an explanatory diagram showing a format of a call message and a response message transmitted between the receiver 10 and the fire sensor 14 of the present embodiment. FIG. 3A shows a call telegram 78 transmitted from the receiver 10 to the fire detector 14, which is composed of an 8-bit command, an address, and a checksum, each having a start bit and a tail. Are arranged with a parity bit PR and a stop bit.

  FIG. 3B shows a response message 80 transmitted from the fire detector 14 to the receiver 10. The response message 80 is composed of 8-bit data and an address checksum, each of which has a start bit at the beginning and a parity bit PR and a stop bit at the end.

  The commands used in the call telegram 78 in FIG. 3A are mainly a polling command for obtaining a normal response of the sensor during normal monitoring, a group search command for performing a group search for a fire interrupt, and the like.

  FIG. 4 is an explanatory diagram showing the format of the upstream event message in the present embodiment. FIG. 4A shows an upstream event message 82-1 transmitted from the event terminal devices 20 and 22 to the fire detector 14. The upstream event message 82-1 includes a vendor identifier 84 indicating other equipment indicating the destination of the message, and event information 86 including on / off information of the push button switch. In addition, a start bit is provided at the beginning of the event message 82-1, and a parity bit and a stop bit are arranged at the end.

  The vendor identifier 84 and the event information 86 in the upstream event message 82-1 are 8 bits corresponding to the data of the response message 80 in FIG. 3A, but this 8-bit data part is variable as necessary. In addition to the on / off information, data such as an image can be sent as the event information 86.

  FIG. 4B shows an upstream event message 82-2 transmitted from the fire detector 14 to the receiver 10. The upstream event message 82-2 includes a data part 88 and an address + checksum 90, which corresponds to the response message 80 in FIG. In the data 88 of the upstream event message 82-2, the vendor identifier 84 and the event information 86 included in the upstream event message 82-1 received from the event terminal device 20, 22 side of FIG. .

  FIG. 4C shows an upstream event message 82-3 transmitted from the receiver 10 to the other equipment monitoring devices 16 and 18. The upstream event message 82-3 includes a header 92, data 94, and CRC 96 as a format corresponding to, for example, RS-232C, which is a transmission interface of the transmission line 15.

  The data 94 is converted from the sensor address of the upstream event message 82-2 in addition to the vendor identifier 84 and the event information 86 constituting the data 88 of the upstream event message 82-2 in FIG. 4B. Area information 98 and time information 100 using a time stamp corresponding to the reception time of the upstream event message 82-2 are added.

  FIG. 5 is an explanatory diagram showing the format of the downlink event message in the present embodiment. FIG. 5A shows a downlink event message 102-1 transmitted from the other equipment monitoring devices 16 and 18 to the receiver 10. The downlink event message 102-1 includes a header 104, data 106, and CRC 108 corresponding to, for example, RS-232C, which is a transmission interface of the transmission line 15.

  The data 106 includes area information 110 indicating the installation location of the destination event terminal devices 20 and 22, time information 112 such as a time stamp indicating the transmission time, a vendor identifier 114 indicating the transmission source, and the event terminal device 20. It consists of event information 116 indicating the contents of display and control. Note that the time information 112 can be excluded when processing is not required on the event terminal device 20 side.

  FIG. 5B shows a downstream event message 102-2 transmitted from the receiver 10 to the fire detector 14. The downstream event message 102-2 includes a command 118 having an 8-bit configuration, an address 120, data 122, and a checksum 124, each of which has a start bit at the beginning and a parity bit PR and a stop bit at the end. Has been placed.

  In the data 122, a vendor identifier 114 and event information 116 included in the downlink event message 102-1 received from the other equipment monitoring devices 16 and 18 shown in FIG. As the address 120, a sensor address obtained by converting the area information 110 included in the downlink event message 102-1 of FIG. 5A by referring to the area management table 32 is arranged.

  FIG. 5C shows a down event message 102-3 transmitted from the fire detector 14 to the event terminal devices 20 and 22. The downlink event message 102-3 includes a vendor identifier 114 and event information 116 arranged in the data 122 of the downlink event message 102-2 in FIG. 5B, a start bit is arranged at the beginning, and a parity bit at the end. PR and stop bit are arranged.

  Note that the event information 116 in the downstream event messages 102-1 to 102-3 in FIG. 5 can also send image data or the like in addition to the on / off information. Therefore, the event information 116 is appropriately set in units of 8 bits. The data can be variable length data that can be increased or decreased.

  FIG. 6 is an explanatory diagram showing details of the area management table 32 provided in the receiver 10 of FIG. In FIG. 6, the area management table 32 is divided into systems 1 to n, and sensor addresses 001 to 255 are assigned to each system, and the area information of the building is assigned to each of the sensor addresses. The floor and room names are registered.

  For this reason, it can be converted into area information by referring to the area management table 32 by the sensor address, and can be converted into sensor address by referring to the area management table 32 by the area information.

  FIG. 7 is an explanatory diagram showing details of the other equipment management table 34 of FIG. In FIG. 7, the other equipment management table 34 is composed of a vendor identifier indicating the other equipment and the equipment name. Therefore, the destination facility name can be specified by referring to the other facility management table 34 using the vendor identifier included in the upstream event message. The equipment name may be a specific name or a network address in the RS-232C interface of the transmission line 15.

  FIG. 8 is an explanatory diagram showing details of the terminal management table 72 provided in the other equipment monitoring device 16 of FIG. In FIG. 8, in the terminal management table 72, a terminal identifier indicating an event terminal device, a type such as a sensor, display, and control in the event terminal device, and area information indicating an installation location of the event terminal device are registered in advance.

  For this reason, when the other equipment monitoring device 16 wants to send event information such as control or display to a specific event terminal device, the area information is acquired from the terminal identifier of the terminal management table 72, and the acquired area information is used. The downlink event message 102-1 shown in FIG. 5A may be created and transmitted to the receiver side.

  FIG. 9 is a time chart showing the transmission timing during normal monitoring in the disaster prevention monitoring system according to the present embodiment. In FIG. 9, four fire detectors 14-1 to 14-4 are shown for the receiver 10, and the addresses of the fire detectors 14-1 to 14-4 are addresses 1 to 4. After transmitting the batch AD conversion command 126, the receiver 10 transmits polling commands 130-1 to 130-255 in which addresses corresponding to the maximum number of sensors of 255 are sequentially specified at regular intervals, and then the batch AD conversion again. A conversion command 126 is transmitted.

  The fire detectors 14-1 to 14-4 that have received the batch AD conversion command 126 simultaneously perform sampling 128-1 to 128-4 of the fire detection information, compare the sampled data with the fire level, Judgment is made.

  Responses 132-1 to 132-4 indicating normal monitoring operations are transmitted to the polling commands 130-1, 130-2, 130-3, 130-4,. If no response is obtained from the fire detector side, the receiver 10 treats the fire detector as a failure.

  FIG. 10 is a time chart showing the transmission timing when a fire occurs in this embodiment. In FIG. 10, in the sampling 128-1 to 128-4 of the fire detectors 14-1 to 14-4 by the batch AD conversion command 126, for example, if a fire determination is made by the fire detector 14-1, the following polling is performed. An interrupt signal 136 is transmitted at the timing of the command 130-1.

  Upon receiving this interrupt signal, the receiver 10 performs polling 134 using a group search command. In response to the group search command 134, the group address including the fire detector 14-1 is determined, and the fire detector 14-1 detecting the fire transmits an interrupt response 138 as a group response.

  By this interrupt response 138, the receiver 10 recognizes that the fire detection is performed in the group of eight fire detectors including the fire detector 14-1, and the addresses 1 to 8 of the fire detector 14-1 are recognized. The polling commands 135-1, 135-2,...

  At this time, in response to the first polling command 135-1, the fire detector 14-1 detecting a fire makes a fire response 140. As a result, the receiver 10 recognizes that the fire detector 14-1 at address 1 has detected a fire, converts the sensor address into area information, and displays a fire alarm.

  FIG. 11 is a time chart showing the fire monitoring process in the present embodiment. In FIG. 11, the receiver 10 transmits a batch AD conversion command in step S1, and in response to this, the fire detector 14 acquires detection data by AD conversion in step S2, and exceeds the fire level in step S3. Suppose a fire is detected.

  Subsequently, in response to the polling command in step S4 from the receiver 10 that designates the address of the fire detector 14, the fire detector 14 transmits an interrupt response in step S5. In response, the receiver 10 transmits a search command for group 1 in step S6. Here, if the fire detector that detected the fire belongs to group 2, the fire detector 14 becomes unresponsive at step S7 to the search command of group 1 at step S6.

  Subsequently, the receiver 10 transmits a search command for group 2 in step S8, and since the fire detector 14 detecting the fire belongs to group 2, it transmits an interrupt response in step S9. Receiving the interrupt response in step S9, the receiver 10 designates the first sensor address in the group address in step S10 and transmits the first search command in the group.

  Here, if the receiver 10 is the second address in the group, no response is made in step S11. Next, the receiver 10 transmits the in-group second search command in step S12. On the other hand, the receiver 10 determines its own address and transmits a fire response in step S13.

  In response to the fire response in step S13, the receiver 10 recognizes the sensor address that detected the fire in step S14, and executes a fire alarm process. Further, in step S15, a fire report is sent to other equipment as necessary. In response to this, the other equipment monitoring device 16 executes fire transfer processing in step S16.

  Subsequently, the receiver 10 transmits the in-group third search command in step S17, and in response to this, no response is received in step S18. Hereinafter, transmission up to the eighth in-group search command belonging to the group is performed. In step S19, no response is made in step S20, and then the normal polling is resumed from step S21.

  FIG. 12 is a time chart showing an upstream event message transmission process in the present embodiment. In FIG. 12, when an event occurs in the event terminal device 20 due to an operation of an emergency push button or the like in step S22, an upstream event message 82-1 shown in FIG. 4A is created and transmitted to the fire detector 14 in step S23. To do.

  In step S24, the fire detector 14 generates an upstream event message 82-2 for the sensor shown in FIG. 4B based on the received upstream event message. On the other hand, in the receiver 10, in step S25, polling is performed by designating the address of the fire detector 14, for example, by normal polling. In response to this polling, the fire detector 14 determines a match with the self address and transmits an interrupt response in step S26. Receiving the interrupt response, the receiver 10 transmits a search command for group 1 in step S27.

  Here, assuming that the fire detector 14 belongs to the group 2, no response is made in step S28. Subsequently, the receiver 10 transmits a search command for group 2 in step S29. At this time, since the fire detector 14 belongs to the group 2, an interrupt response is transmitted in step S30.

  As a result, the receiver 10 can recognize that the fire detector 14 that has performed the interrupt belongs to the group 2, and then transmits a search command that sequentially specifies the sensor addresses in the group. That is, the first search command in the group is transmitted at step S31, and no response is made at step S32.

  Subsequently, in step S33, the in-group second search command is transmitted, which coincides with the sensor address of the fire sensor 14 that interrupted, and in step S34, an upstream event message is transmitted to the receiver 10. The receiver 10 generates an upstream event message 82-3 at the receiver shown in FIG. 4C based on the received upstream event message in step S35, and transmits it to the other equipment monitoring device 16 in step S36. The other equipment monitoring device 70 receives the upstream event message from the receiver 10 in step S37, and executes a desired monitoring process based on the area information, time information, and event information included in the event message.

  Subsequently, the receiver 10 sequentially transmits from the third search command in the group to the last eighth search command in steps S38 to S40. On the other hand, as shown in steps S39 to S41, the fire detector 14 side. No response is made, and then the normal polling is resumed in step S42.

  FIG. 13 is a time chart showing the transmission process of the downlink event message in the present embodiment. In FIG. 13, when an event for transmitting event information to the event terminal device 20 in the other equipment monitoring device 16 occurs in step S44, the downlink event message 102-1 shown in FIG. 5A is generated in step S45. To the receiver 10.

  On the other hand, the receiver 10 performs normal polling on the fire detector 14 in step S43. Subsequently, when a downlink event message is received from the other equipment monitoring device 16 in step S46, a downlink event message 102-2 shown in FIG. 5B is generated, and in step S47, polling is performed for the sensor address converted into the downlink event message. At a timing, a downstream event message is transmitted to the fire detector 14.

  Upon receiving the down event message from the receiver 10, the fire detector 14 generates the down event message 102-3 of the sensor shown in FIG. 5C in step S48, and in step S49, the fire sensor 14 sends it to the event terminal device 20. Send a telegram to.

  The event terminal device 20 decodes the downstream event message from the sensor received in step S50, and performs processing such as control and display included in the event information. When the downstream event message has been transmitted, the receiver 10 returns to normal polling again in step S51.

  FIG. 14 is a flowchart showing terminal processing by the terminal processing unit 56 provided in the CPU 55 of the event terminal device 20 of FIG. In FIG. 14, when the event processing determines that an event has occurred in step S101, the terminal process proceeds to step S102, reads the event data, creates an upstream event message with a vendor identifier added in step S103, and sends the message in step S104 to the fire detector. 14 to send.

  On the other hand, if a down event message is received from the fire detector 14 in step S105, the message is decoded in step S106, and control, display, and processing in the event terminal device are executed in step S107 based on the event information of the message. .

  FIG. 15 is a flowchart showing sensor processing by the fire detection unit 52 and the sensor relay unit 54 provided in the CPU 42 of the fire sensor 14 of FIG. In FIG. 15, when the sensor process determines polling from the receiver 10 in step S108, a normal response is transmitted in step S109.

  Subsequently, when it is determined in step S110 that an upstream event message has been received from the event terminal device, an upstream event message to which a sensor address is added is created in step S111. In response to polling in which the own sensor address is specified in step S112. Send an interrupt response.

  Subsequently, when a group search command is received in step S113, an interrupt response is transmitted in step S114. Subsequently, when a polling command specifying its own address is received in step S115, an upstream event message is transmitted in step S116. Subsequently, when it is determined in step S117 that a downlink event message has been received, a downlink event message with the sensor address removed is created in step S118, and the downlink event message is transmitted to the event terminal device in step S119.

  On the other hand, if fire detection is determined in step S120, fire information transmission processing is executed in step S121. This fire information transmission process is basically the same as steps S112 to S116, and the process in step S116 is the transmission of a fire response.

  FIG. 16 is a flowchart showing receiver processing by the fire monitoring processing unit 36 and the receiver relay unit 38 in the CPU 24 provided in the receiver 10 of FIG. In the receiver processing of FIG. 16, when a polling command for normal monitoring is transmitted in step S122 and a normal monitoring response is not received in step S123, the sensor address of the polling command is determined in step S124. Perform sensor failure handling.

  Subsequently, when it is determined in step S125 that an interrupt has been received from the fire detector, an interrupt detector search process is executed in step S126. In this search process, first, a group search command is transmitted, and for the group for which a response has been obtained, polling is performed by sequentially specifying the sensor addresses in the group, and the fire sensor that generated the interrupt is searched. Subsequently, in step S127, a polling command is transmitted to the searched fire detector, and an upstream event message is transmitted.

  Subsequently, if it is determined in step S128 that the message from the fire sensor is reception of an upstream event message, the process proceeds to step S129, where the upstream event message is read and decoded, and in step S130, area information is generated from the sensor address. In step S131, time information is generated. In step S132, an upstream event message with the area information and time information added is created. In step S133, the upstream event message is transmitted to other equipment specified by the vendor identifier.

  If it is determined in step S134 that a downstream event message has been received from another equipment monitoring device, the downstream event message is read and decoded in step S135, a sensor address is generated from the area information in step S136, and in step S138, A downstream event message is transmitted at the polling timing of the generated sensor address.

  On the other hand, if the response to the polling command is not an upstream event message in step S128, the process proceeds to step S139, where it is checked whether a fire response has been received, and if it is a fire response receiver, in step S140. Fire reception alarm processing will be executed.

  FIG. 17 is an explanatory view showing another embodiment of the disaster prevention monitoring system according to the present invention. In the embodiment of FIG. 17, the disaster prevention CRT system 11 is connected to the upper side of the receiver 10 via the transmission line 15, and the other equipment monitoring device 16 is connected via the transmission line 15 via the disaster prevention CRT system 11. , 18 are connected.

  On the other hand, for the fire detector 14 of the fire alarm transmission line 12 drawn from the receiver 10, in addition to the event terminal device 20 connected by a wireless line, an event is transmitted to the specific fire detector 14 by a signal line. A terminal device 21 is connected. The event terminal device 21 is installed at the same ceiling surface position as the fire detector 14, for example. In such a case, the event terminal device 21 can be directly connected to the fire detector 14 through a signal line. it can.

  When the disaster prevention CRT system 11 receives the fire detection information including the sensor address from the receiver 10, the disaster prevention CRT system 11 displays a map of the warning area stored in the database in advance on the CRT screen and visually indicates the location of the fire occurrence. Can be displayed. For this reason, the disaster management CRT system 11 is provided with an area management table 32 provided in the receiver 10 of FIG.

  Accordingly, in the embodiment of FIG. 17, the area management table 32 and the other equipment management table 34 provided in the receiver 10 of FIG. 2 are provided on the disaster prevention CRT system 11 side, and the event terminal devices 20 and 22 received by the receiver 10. The upstream event message from is sent to the disaster prevention CRT system 11 as it is.

  In the disaster prevention CRT system 11, the sensor address of the upstream event message is converted to area information by referring to the area management table 32, and time information such as a time stamp is generated, and this is added to the vendor identifier and event information. The upstream event message 82-3 shown in 4 (C) is generated and transmitted to the corresponding other equipment monitoring device 16 through the transmission line 15.

  On the other hand, for the down event messages from the other equipment monitoring devices 16 and 18, the disaster prevention CRT system 11 converts the area information into the sensor address and sends it to the receiver 10, and the receiver 10 side as shown in FIG. A downstream event message 102-2 is generated and transmitted to the fire alarm transmission line 12 at a polling timing corresponding to the sensor address.

  In the above embodiment, the fire detector 14 and the event terminal devices 20 and 22 are connected by a radio wave line, but other than this, they are connected by a line such as infrared rays or ultrasonic waves. You may do it.

  In the above embodiment, the normal detection response is obtained by sequentially polling the fire detector during normal monitoring, and an interrupt signal is transmitted when a fire is detected, and a fire is detected by group search and in-group search. Although a fire alarm transmission protocol is used to specify a fire detector and generate a fire response, the present invention is not limited to this fire alarm transmission protocol, and a plurality of receivers are used for one receiver. The event message may be transmitted bidirectionally using an appropriate transmission protocol that performs 1-to-n polling transmission.

  Moreover, as other equipment combined with the disaster prevention monitoring system in the present invention, as long as it is equipment installed in the same building or facility, there is no limitation depending on its use or type.

The present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above-described embodiments.

Explanatory drawing which showed embodiment of the disaster prevention monitoring system by this invention The block diagram which showed the detail of the receiver of FIG. 1, a fire detector, an event terminal, and other equipment monitoring apparatus Explanatory drawing which showed the format of the call message and response message transmitted between the receiver and the fire alarm of this embodiment Explanatory drawing showing the format of the upstream event message in this embodiment Explanatory drawing showing the format of the downlink event message in this embodiment Explanatory drawing which showed the detail of the area management table of FIG. Explanatory drawing which showed the detail of the other equipment management table of FIG. Explanatory drawing which showed the detail of the terminal management table of FIG. Time chart showing the transmission timing during normal monitoring in this embodiment Time chart showing transmission timing at the time of fire occurrence in this embodiment Time chart showing fire monitoring process in this embodiment Time chart showing upstream event message transmission processing in this embodiment Time chart showing downstream event message transmission processing in this embodiment The flowchart which showed the terminal process by the event terminal of FIG. The flowchart which showed the sensor process by the fire sensor of FIG. The flowchart which showed the receiver process by the receiver of FIG. Explanatory drawing which showed other embodiment of the disaster prevention monitoring system by this invention.

Explanation of symbols

10: Receiver 12: Fire alarm transmission line 14: Fire detector 15: Transmission line 16, 18: Other equipment monitoring device 20, 22: Event terminal device 24, 40, 55: CPU
26, 28, 42: Wired transmission unit 30: Fire monitoring database 32: Area management table 34: Other equipment management table 36: Fire monitoring processing unit 38: Receiver relay unit 44, 68: Power supply unit 46, 64: Storage unit 48 , 60: wireless transmission unit 50, 62: antenna 52: fire detection unit 54: sensor relay unit 56: terminal processing unit 58: emergency push button 66: display unit 70, 74: terminal monitoring unit 72, 76: terminal management table 78: Call message 80: Response message 82-1 to 82-3: Up event message 84-1 to 84-3: Down event message

Claims (4)

In a disaster prevention monitoring system that monitors fire and other abnormalities by connecting a fire detector equipped with a transmission function to the transmission line drawn from the receiver.
A terminal device that detects a predetermined event and transmits an upstream event signal;
A sensor provided in the fire detector for transmitting an upstream event signal received from the terminal device to the receiver via the transmission line and transmitting downstream event information received from the receiver to the terminal device A relay section;
The transmission line is provided in the receiver, receives an upstream event signal from the fire detector and transmits it to a corresponding monitoring device of another facility, and receives a downstream event signal from the monitoring device of the other facility and transmits the transmission line. A receiver relay that transmits to the fire detector via
A disaster prevention monitoring system characterized by comprising
In the disaster prevention monitoring system according to claim 1,
The terminal device transmits an upstream event signal including a destination identifier and event information for specifying other equipment of a transmission destination,
The sensor relay unit includes a sensor address in an upstream event signal received from the terminal device, and transmits it to the receiver.
The receiver relay unit converts a sensor address of an upstream event signal received from the fire sensor into area information indicating an event occurrence location, and transmits an upstream event signal including time information indicating an event occurrence time to the destination identifier. The disaster prevention monitoring system characterized by transmitting to the monitoring apparatus of the other equipment discriminated by.
In the disaster prevention monitoring system according to claim 1,
The monitoring device of the other equipment generates a downstream event signal including area information, event information, and a transmission source identifier, and transmits it to the receiver.
The receiver relay unit converts area information of a downstream event signal received from the monitoring device of the other equipment into a sensor address and transmits it to the transmission line,
The sensor relay unit receives a downlink event signal specifying its own sensor address, and transmits a downlink event signal including event information and a transmission source identifier to the terminal device,
The said terminal device decodes the down event signal received from the said sensor relay part, and performs control, a display, or a process according to event information, The disaster monitoring system characterized by the above-mentioned.
  The disaster prevention monitoring system according to claim 1, wherein information is transmitted and received between the terminal device and the sensor relay unit by wireless communication, wired communication, infrared communication, or ultrasonic communication.

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