JP2019061316A - Alarm system - Google Patents

Abstract

To collect history information from other alarm devices even when history information of one of the alarm devices constituting a linkage group cannot be read.SOLUTION: In an alarm system, a linkage group for enabling mutual communication of a signal is constituted by multiple house alarms 10 arranged in a monitoring area. When one of the multiple house alarms detects a fire, fire alarm indicating a linkage source is output. Besides, a fire linkage signal is transmitted to the other house alarms to output fire alarm indicating a linkage destination. Each one of the house alarms 10 includes a history sharing control unit 74 for defining an own occurrence event and occurrence events of the other alarms as history information and storing the information by sharing. The history sharing control unit 74 transmits own history information to the other house alarms by a periodical automatic communication test and also receives history information from the other house alarms. History information of the house alarms included in a linkage group is stored in a history sharing file 76 of a nonvolatile memory 35.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an alarm system in which a linked group is formed by a wireless interlocked alarm device, and when an alarm detects a fire and alarm is issued, a fire interlock signal is transmitted to another alarm and alarmed.

  BACKGROUND ART Conventionally, alarm devices that detect and warn of fires in houses have become widespread. Among them, the fire alarm for housing is called a home alarm.

  In such a home alarm device, a sensor unit and an alarm unit are integrally provided in the home alarm device, and a fire alarm is issued when a fire is detected, and the fire alarm and alarm can be performed with the home alarm device alone. Therefore, it is easy to install and inexpensive, and it has been widely disseminated along with the obligatory installation in general houses.

  In addition, the interlocking group is formed by a plurality of residential alarm devices with the home alarm device as a wireless interlocking type, and when an alarm sound indicating an interlock source is output when a fire is detected by any of the residential alarm devices, a fire interlock signal is transmitted An alarm system in which an alarm sound indicating interlocking destinations is output in conjunction with other home alarm devices is also put to practical use and widespread.

  In a home alarm device not connected to a receiver provided in such an alarm system, a history storage function of storing all information such as fire detection operation, failure, periodic notification, etc. as history information in the memory of the alarm device itself Is provided.

  In the case of a home alarm device equipped with such a history storage function, what state the home alarm device was in by reading out and analyzing the stored history information when a fire occurs or breaks down, etc. By knowing the fire occurrence and fire extinguishing can be used to identify the source of fire and investigate the cause of failure of the home alarm.

  For example, when the home alarm device of Patent Document 1 detects an alarm history holding unit that holds a history of an abnormal alarm that indicates an interlocking source or an interlocking destination, and an alarm history output operation of an external instruction operation unit, the alarm history holding unit Providing an alarm history output unit that causes the notification unit to output information indicating the latest history of abnormal alarms held, and when a fire is detected and linked alarms are performed with multiple home appliances, save the alarm history If there is a need to identify the source of fire, or to identify the home alarm that has generated a false alarm or a non-fire alarm, even after all the alarms have stopped, When the alarm history output operation is performed by the operation unit, the fire alarm history stored at the time of the fire alarm is read, and the fire alarm history notification indicating the link source immediately before (the latest alarm) is performed. Identification of the original or identification of a resident alarm that issued a false alarm or non-fire notification Single and it can be reliably.

JP, 2011-113114, A JP 2014-225055 A Unexamined-Japanese-Patent No. 2015-087885

  However, in the case of a wireless interlocking type built-in alarm device provided in such a conventional alarm system, the built-in alarm device burns down due to a fire or the IC including the memory is destroyed at an unreadable level. In such a case, there is a problem that the history information stored in the home alarm can not be collected.

  An object of the present invention is to provide an alarm system that enables collection of history information from other alarms even if it is impossible to read the history information of any of the alarms constituting the interlocking group. Do.

(Alarm system)
The present invention forms an interlocking group in which signals can be communicated mutually by a plurality of alarms installed in a monitoring area, and outputs a fire alarm indicating an interlocking source when a fire is detected by any of the plurality of alarms. And an alarm system for transmitting a fire interlock signal to another alarm to output a fire alarm indicating the interlock destination,
Each of the alarm devices is characterized by being provided with a history sharing control unit for storing and sharing own occurrence events and occurrence events of other alarm devices as history information.

(Collection of history information by communication test)
The history sharing control unit transmits its own history information to another alarm by a communication test regularly performed among a plurality of alarms, and receives history information from the other alarm as history information. Remember.

(Non-volatile memory)
The history sharing control unit stores the history information in the non-volatile memory.

(Retrieve history information)
The history sharing control unit reads out the history information and transmits it to the outside when detecting the reception of the predetermined read operation or the read instruction signal.

(Reader of history information)
The alarm system further comprises a reader having a wireless communication function, wherein the reader transmits a read indication signal and receives history information.

(Collect and retrieve the latest history information)
The history sharing control unit transmits its own history information to the other alarm device and receives history information from the other alarm device as history information when detecting reception of a predetermined read operation or a read instruction signal. After storing, the history information is read and transmitted to the outside.

(Basic effect)
The present invention forms a linked group in which signals can be communicated mutually by a plurality of alarms installed in a monitoring area, and a fire alert indicating an interlocking source when a fire is detected by any of the plurality of alarms. In the alarm system that outputs a fire interlock signal to another alarm to output a fire alarm indicating the interlock destination, each alarm has a history of its own occurrence event and other alarm occurrence events Since a history sharing control unit for storing and sharing information as information is provided, even if the alarm in the interlocking group is burned down due to a fire or the IC storing the memory is in an unreadable state, Since the history information is shared by the alarm devices, the history information of the alarm devices can be acquired by extracting the history information of any one of the alarm devices that function properly, and burnout or history information can not be collected. It acquires the history information of the alarm device that is causing the failure and possible to carry out surveys of occurrence and cause of failure fire efficiently high accuracy.

(Effect of collecting history information by communication test)
In addition, the history sharing control unit transmits its own history information to another alarm by a communication test periodically performed among a plurality of alarms, and receives history information from the other alarm to be history Since information is stored, it is easy to periodically transmit and receive mutually history information between alarm devices and share them using the regular test function that the wireless interlocking alarm device originally has. .

(Effect by nonvolatile memory)
Further, since the history sharing control unit stores the history information in the non-volatile memory, even if the battery power of the alarm device is lost, the shared history information is not lost.

(Effect of retrieval of history information)
Further, when the history sharing control unit detects history information and sends it to the outside when detecting the reception of a predetermined read operation or a read instruction signal, it is necessary to take out shared history information. The history information shared by simple operation can be taken out to an external device or device and used for analysis such as investigation.

(Effect of reader of history information)
The alarm system further includes a reader having a wireless communication function, and the reader transmits the read instruction signal and receives the history information. Therefore, when collecting the history information, the person in charge is the reader. The user can easily read out and use the history information stored in the alarm device by wireless communication connection by carrying the device near the alarm device.

(Effect of collecting latest history information and taking it out)
In addition, when the history sharing control unit detects reception of a predetermined read operation or a read instruction signal, the history sharing control unit transmits its own history information to the other alarm device and receives history information from the other alarm device to perform history. Since the history information is read out and transmitted to the outside after being stored as information, when reading out the history information being shared, the history information is collected from another alarm device and then transmitted to the outside, so that the latest It is possible to retrieve alarm history information including events.

Explanatory drawing which showed the alarm system in which the function of the receiver of this invention is used. Block diagram showing the appearance of a home alarm A block diagram showing a functional configuration of a home alarm device having a history sharing function according to the present invention Explanatory diagram showing the communication path of the periodic communication test performed between the home appliances that form the interlocking group Explanatory drawing which showed the history share file memorize | stored in the non-volatile memory of FIG. 3 in list form A flowchart showing the control operation by the home alarm device of FIG. 3 A flowchart showing details of communication test control in step S11 of FIG.

[Overview of alarm system]
FIG. 1 is an explanatory view showing an alarm system in which the function of the receiver according to the present invention is used, taking an example of an alarm system constituted by a wireless type living alarm device (fire alarm for home) installed in a house. There is.

  In the example shown in FIG. 1, in each of the kitchen, living room, main bedroom, and children's room of residence 12, dwelling alarm devices 10-1 to 10-4 for detecting and alarming a fire are installed, and they are further built outdoors. A home alarm 10-5 is also installed in the garage 14 that has been set up. The home alarm devices 10-1 to 10-5 have a function of mutually transmitting and receiving interlock signals such as fires wirelessly, and perform fire monitoring of the entire house.

 Also. The home alarm devices 10-1 to 10-5 form interlocking groups by using the same channel frequency. The maximum number of dwelling devices forming the interlocking group in the present embodiment is, for example, fifteen. Moreover, when it is not necessary to distinguish the dwelling alarm devices 10-1 to 10-5 in the following description, it may be called the dwelling alarm device 10.

  Now, assuming that a fire occurs in the child room of the house 12, the home alarm device 10-4 detects a fire, and outputs a fire alarm indicating an interlocking source by an alarm sound and an alarm display. Moreover, the resident alarm device 10-4 that has detected a fire wirelessly transmits a fire interlock signal indicating the occurrence of a fire to the other resident alarm devices 10-1 to 10-3 and 10-5. When the other home alarm devices 10-1 to 10-3 and 10-5 receive the fire interlock signal from the home alarm device 10-4 of the interlock source, the fire alarm indicating the interlock destination is displayed by the alarm sound and the alarm display. Output.

  When an alarm stop operation is performed during output of a fire alarm, the home alarm 10-1 to 10-5 stops its own alarm and transmits an alarm stop interlock signal to other home alarm devices to perform an alarm stop operation. Let In addition, when the fire restoration is detected by the living alarm device 10-4 that has detected a fire, the alarm of its own is stopped and the fire recovery interlocking signal is transmitted to the other living alarm devices to perform the alarm stop operation.

  Further, in the normal monitoring state, the home alarm devices 10-1 to 10-5 automatically perform the communication test (periodical notification test) in a cycle of 72 hours, for example. Furthermore, the home alarm devices 10-1 to 10-5 can perform a communication test by pressing and holding any of the test buttons.

  FIG. 2 is an explanatory view showing the appearance of the wireless type of home alarm device, showing a front view in FIG. 2 (A) and a side view in FIG. 2 (B).

  As shown in FIG. 2, the home alarm device 10 comprises a main body 16 and a cover 18, a smoke inlet is opened at the center of the cover 18, a smoke detector 26 is disposed inside, and smoke from fire is specified. Detect fire when concentration reached. An acoustic hole 24 is provided on the lower left side of the cover 18, and a speaker is built in the back so as to output an alarm sound and a voice message.

  A test switch 20 is provided below the smoke detection unit 26. The test switch 20 also functions as a test switch for instructing alarm stop of the home alarm device. When the test switch 20 is operated at the fire alarm, the alarm is stopped and when the test switch 20 is operated in the normal state Start function check and report the result. Further, when the test switch 20 is pressed and operated, a communication test is performed. Inside the test switch 20, an LED 22 for displaying an alarm as shown by a dotted line is disposed, and it is possible to visually recognize lighting and blinking of the internal LED 22 through the test switch 20.

[Functional configuration of home alarm device]
(Overview of functional configuration)
FIG. 3 is a block diagram showing a functional configuration of a home alarm device having a history sharing function according to the present invention. As shown in FIG. 3, the home alarm device 10 includes the control processor 30. For the control processor 30, the nonvolatile memory 35 stores the smoke detector 26, the test switch 20, the LED 22, the speaker 34, and the history sharing file 76. And the communication part 32 which connected the antenna 42 is provided.

  The control processor 30 is provided with a CPU 46, and the control logic 48, ROM 50, RAM 52, AD conversion port 58, input port 60, output port 62, audio output port 64, memory port 66, communication port, etc. 56 are connected. The control logic 48 implements various hardware functions such as bus control accompanying control processing of the CPU 46.

  The smoke detector 26 is connected to the AD conversion port 58, the test switch 20 is connected to the input port 60, the LED 22 is connected to the output port 62, the speaker 34 is connected to the audio output port 64, and the memory port A non-volatile memory 35 is connected to 66 and a communication unit 32 is connected to the communication port 56. The non-volatile memory 35 may be a removable non-volatile memory card.

  The smoke detection unit 26 has a known scattered light type smoke detection structure, intermittently emits light to drive a light emitting unit using an infrared LED in a predetermined cycle, and receives a light reception signal of scattered light received by a light receiving unit such as a photodiode. And outputs a smoke density detection signal. Note that a temperature detection unit may be provided instead of the smoke detection unit 26, and the temperature detection unit uses, for example, a thermistor as a temperature detection element, and in this case, a temperature serving as a voltage signal corresponding to a change in resistance due to temperature. Output a detection signal.

  The communication unit 32 transmits and receives interlocking signals such as fire and the like according to a predetermined communication protocol with other home alarm devices. In the case of Japan, this communication protocol conforms to, for example, STD-30 (Radio Equipment Standard for Specified Low Power Security System Radio Station) known as a standard for Specified Low Power Radio Station in the 426 MHz band.

  In the 426 MHz band specified low power security system radio station equipment, 48 channels with a frequency bandwidth of 12.5 kHz are allocated between 426.2500 MHz and 426.8375 MHz, and any channel frequency is assigned to a plurality of JSPOs. Assign to interlocking group consisting of

  The communication unit 32 is provided with a communication processor 36, and the communication processor 36 is provided with a transmitting unit 38 and a receiving unit 40.

  The transmission unit 38 MSK-modulates a data signal such as a fire interlocking signal output from the communication processor 36, FM-modulates it, and transmits it from the antenna 42 as a signal wave of an assigned channel frequency of 426 MHz band.

  The receiving unit 40 receives a signal radio wave transmitted by another household alarm device by the antenna 42, performs FM demodulation, and then performs FSK demodulation, and further performs bit determination to demodulate a data signal such as a fire interlocking signal.

(Fire control function)
The CPU 46 is provided with functions of a fire control unit 70, a communication test control unit 72, and a history sharing control unit 74 which are realized by execution of a program.

(Function of fire control unit)
The control function of the fire control unit 70 provided in the CPU 46 is as follows. The fire control unit 70 reads the detection signal of smoke concentration output from the smoke detection unit 26 from the AD conversion port 58, detects a fire when the smoke concentration is equal to or more than a predetermined threshold, and indicates a fire alarm indicating a linked fire. Control to output.

  When the fire control unit 70 outputs a fire alarm, the fire control unit 70 generates a fire interlocking signal, instructs the communication unit 32 to transmit the fire interlocking signal to the dwelling alarm devices of other dwelling units, and the fire interlocking signal The fire alarm indicating the interlocking destination is output by the dwelling alarm device of the other dwelling unit that has received.

  In addition, when the fire control unit 70 receives the fire interlocking signal transmitted by the other dwelling unit in the dwelling unit that is the interlocking group, the fire control unit 70 performs control to output the fire indicating the interlocking destination.

  The fire control unit 70 also controls the alarm stop interlocking signal and fire in the alarm stop control by the operation of the test switch 20 and the fire recovery control in which the smoke concentration of the smoke detector falls below the threshold as in the case of the fire interlock signal. Send a recovery interlock signal.

  Furthermore, the fire control unit 70 performs registration control for forming an interlocking group with other home alarm devices. The registration control of the home alarm device 10 arranges, for example, five home alarm devices 10-1 to 10-5 forming an interlocking group on a work table, and operates the registration switch in order while the battery power is turned on, The addresses A1 to A5 assigned to the resident alarm devices 10-1 to 10-5 are mutually transmitted and received, and in each of the resident alarm devices 10-1 to 10-5, the addresses of other resident alarm devices belonging to the same group are transmitted. It is registered, and when the interlock signal is received, it is possible to distinguish whether it is a signal from a resident alarm device belonging to its own group or a signal from a resident alarm device belonging to another group.

  In addition, at the time of group registration, when the registration switch is operated, a communication test cycle timer that determines the cycle of the automatic communication test described later, for example, a 72 hour timer is reset and started. The 72 hour timer on the alarm first times out and starts the automatic communication test.

(Function of communication test control unit)
FIG. 4 is an explanatory view showing a communication path of a regular communication test performed between home appliances that form an interlocking group. The control function of the communication test control unit 72 provided in the CPU 46 of FIG. 3 is as follows. The communication test control unit 72 includes, for example, a 72-hour timer that determines the cycle of the automatic communication test, and the 72-hour timer is reset and started when the registration switch is operated to form an interlocking group.

  Here, assuming that the registration switch of the home alarm 10-1 is first operated at the time of registration operation of the interlocking group, it takes 72 hours to function as the communication test cycle timer of the home alarm 10-1 reset and started at that time. The timer first times up after 72 hours, and the communication test control unit 72 of the home alarm device 10-1 performs communication test control.

  In the communication test by the communication test control unit 72 of the home alarm 10-1, in the order of the other home alarm 10-2 to 10-5 obtained at the time of group registration, the addresses A2 to A5 of the other party are sequentially The designated communication test signal is transmitted as indicated by the solid arrow in FIG.

  The home alarm devices 10-2 to 10-5 having received the communication test signal from the home alarm device 10-1 transmit a communication test response signal to the home alarm device 10-1, as indicated by the dotted line. When the home alarm device 10-1 receives a communication test signal and receives a communication test response signal from the home alarm devices 10-2 to 10-5 within a predetermined time, it determines that the communication test is normal, and a predetermined time has elapsed. However, if the communication test response signal is not received, it is determined that the communication test is abnormal.

  When the communication test control unit 72 of the home alarm 10-1 determines that the communication test is abnormal by the communication test, the communication test control unit 72 outputs an interlock source alarm indicating the communication test abnormality, and the communication test abnormality interlocking signal Control to transmit to 10-2 to 10-5 is performed, and the communication test abnormality alarm indicating the interlocking destination is output from the other home alarm device where the radio wave by the communication test is normally received.

  The alarm indicating the link source of the communication test abnormality by the communication test control unit 72 of the resident alarm device 10-1 which has performed the communication test blinks the LED 22 at, for example, a 10 second cycle, for example, once a hour, for example Control to output a voice message stating "Pippy communication test error. Please check another alarm device".

  Further, the alarm indicating the link destination of the communication test abnormality by the communication test control unit 72 of the home alarm device to which the radio wave of the home alarm devices 10-2 to 10-5 has arrived blinks the LED 22 in a 10-second cycle. When the operation of the test switch 20 is detected in the state, for example, control is performed to output a voice message that "Pip communication test is abnormal. Please check another alarm."

  For this reason, among the dwelling alarms 10-1 to 10-5, a dwelling alarm whose LED 22 is turned off is searched as a dwelling alarm which has not reached the radio wave, and a countermeasure such as changing an installation place is taken. If you change the installation location of the resident alarm that did not reach the radio wave, perform a communication test by manual operation by long press operation of the test switch 20 of the resident alarm 10-1, etc. Confirm that has arrived.

  In addition, the communication test by manual operation can be performed from any of the home alarm devices 10-1 to 10-5, and the home alarm device holding the test switch 20 for a long time transmits a communication test signal to another home alarm device. Communication test response signal is sent back, communication test response signal is not received even after a predetermined time If there is a home alarm device which does not receive, it is judged as communication test abnormality, communication test is the same as the case of automatic communication test. An interlocking source alarm and an interlocking destination alarm indicating an abnormality are output.

(Function of history sharing control unit)
FIG. 5 is an explanatory view showing the history sharing file stored in the nonvolatile memory of FIG. 3 in a list form. Here, since the history sharing file 76 shown in FIG. 5 takes the interlocking group of the home alarm devices 10-1 to 10-5 in FIG. 1 as an example, the actual flag corresponding to the addresses A1 to A5 indicates the actual existence. Since it is set to 1 and the history sharing file 76 of the home alarm 10-1 is taken as an example, the self / other flag corresponding to the address A1 is set to bit 1 indicating self. The contents of the addresses A6 to A15 are empty.

  The control function of the history sharing control unit 74 provided in the CPU 46 of FIG. 3 is as follows. The history sharing control unit 74 detects a fire occurring in the home alarm device itself, an alarm operation, an occurrence event such as a failure, a correction value for performing a fire detection, and a battery voltage to the history sharing file 76 of the non-volatile memory 35. For example, taking the home alarm device 10-1 as an example, it is stored as its own history data LD1 in order of occurrence corresponding to its own address A1.

  In addition, the history sharing control unit 74 transmits its own history information to the other home alarm devices using transmission and reception of the signal by the automatic communication test once in 72 hours by the communication test control unit 72, and Control is performed to receive history information from the home alarm device and store the history information in the history sharing file 76 of the non-volatile memory 35.

  Since the communication test control unit 72 performs control to transmit a communication test response signal when receiving a communication test signal from another home alarm device in the automatic communication test, the history sharing control unit 74 controls the communication test control unit 72. In the communication test response signal generated by the second embodiment, control is performed so that the self history data LD1 stored in the history sharing file 76 of the non-volatile memory 35 is transmitted. In this case, the communication test control unit 72 reads out its own history data stored for 72 hours from the previous communication test to the current communication test, and controls the communication test response signal to be included and transmitted.

  Further, the history sharing control unit 74 extracts the history information LD2 to LD5 included in the communication test response signal received from the communication test control unit 72 or the other home alarm devices 10-2 to 10-5, and the home alarm device Control is performed to divide the addresses A2 to A5 of 10-2 to 10-5 and store them in the history sharing file 76 of the nonvolatile memory 35.

  When the history sharing control unit 74 detects the predetermined reading operation of the test switch 20 or the reception of the read instruction signal from the reader having the wireless communication function, the history sharing control unit 74 reads the history sharing file 76 of the non-volatile memory 35 Control to send to the outside.

  In addition, when the history sharing control unit 74 detects the predetermined read operation of the test switch 20 or the reception of the read instruction signal from the reader having the wireless communication function, the history test unit 72 instructs the communication test control unit 72 to forcibly The communication test is performed to collect history information including the latest events from the other home alarm devices 10-2 to 10-5 and store the history information in the history sharing file 76 of the non-volatile memory 35. The history sharing file 76 may be read out and transmitted to the outside.

[Fire monitoring control]
FIG. 6 is a flow chart showing the control operation by the home alarm device of FIG. As shown in FIG. 6, the fire control unit 70 provided in the CPU 46 of FIG. 3 determines that there is a fire notification if the smoke detection signal output from the smoke detection unit 26 in step S1 exceeds a predetermined fire level. Then, the process proceeds to step S2, where the voice message from the speaker 34 and the lighting of the LED 22 cause the fire alarm indicating the interlocking source to be output, and the fire interlocking signal is transmitted.

  Further, when the fire control unit 70 determines the reception of the interlocking signal transmitted by the other home alarm device in step S3, the process proceeds to step S4, and outputs a fire alarm indicating the interlocking source by the voice message from the speaker 34 and the blinking of the LED 22.

  Subsequently, when the fire control unit 70 determines the operation of the test switch 20 during the fire alarm indicating the interlocking source in step S5, the process proceeds to step S6 to stop the fire alarm, and then proceeds to step S7 and the alarm stop interlock signal Send it to another home alarm to stop the fire alarm.

  Further, when the fire control unit 70 determines that the fire detection signal from the smoke detection unit 26 is lowered and the fire state is eliminated in step S8, the fire control unit 70 proceeds to step S9 and stops the fire alarm indicating the interlock source. In step S10, a fire recovery interlocking signal is transmitted to the other home alarm devices to stop the fire alarm indicating the interlocking destination.

  Subsequently, in step S11, the communication test control unit 72 provided in the CPU 46 performs communication test control with history sharing.

[Communication test control]
FIG. 7 is a flow chart showing the details of the communication test control in step S11 of FIG. 6, under the control of communication test control unit 72 and history sharing control unit 74 provided in CPU 46 of FIG. A communication test control by the alarm 10-1 will be described as an example.

  As shown in FIG. 7, when the communication test control unit 72 of the home alarm device 10-1 determines in step S21 that the 72-hour timer functioning as the communication test cycle timer has reached the communication test cycle (time up), the process proceeds to step S22. 5 and recognize the addresses A2 to A5 of the other home alarm devices 10-2 to 10-5 belonging to the own interlocking group by referring to the history sharing file 76 shown in FIG. 5, and specify the first address A2 Generate and send a communication test signal.

  Subsequently, when the communication test control unit 72 of the home alarm 10-1 determines the communication test response signal transmitted from the home alarm 10-2 in step S23, the process proceeds to step S24, and the communication of the home alarm 10-2 is performed. The normal test is held in the RAM 52, and then, the history data LD2 of the home alarm 10-2 sent in the received communication test response signal is extracted and stored in the history sharing file 76 of the non-volatile memory 35.

  On the other hand, when the reception of the communication test response signal is not determined in step S23, the progress of the predetermined response waiting time is monitored in step S26, and when the predetermined response waiting time is determined, the process proceeds to step S27. It is determined that the radio wave has not reached the home alarm 10-2, and the communication test abnormality in the home alarm 10-2 of the designated address A2 is held in the RAM 52 in step S27.

  Subsequently, the communication test control unit 72 determines in step S28 whether or not the communication test for all addresses of the other home alarm devices 10-2 to 10-5 has ended, and if not completed, the communication test control unit 72 performs the next operation in step S29. The address designation is changed to the address A3 of the home alarm 10-3, and the process returns to the step S23, the communication test signal specifying the address A3 is transmitted to the home alarm 10-3, and the processing of the steps S24 to S27 is repeated.

  If the communication test control unit 72 determines that the communication test of all the addresses A2 to A5 is completed in step S28, the process proceeds to step S30. If the communication test abnormality held in step S27 is determined, the process proceeds to step S31 and transmits the communication test abnormality interlocking signal. Control to As a result, among the other home alarm devices 10-2 to 10-5, the home alarm device which has successfully received the radio wave of the communication test receives the communication test abnormality interlocking signal.

  Subsequently, the communication test control unit 72 proceeds to step S32 and blinks the LED 22 twice in a 10-second cycle as an alarm indicating an interlocking source of the communication test abnormality and, for example, once per hour from the speaker 34 Output a voice message such as "Please check another alarm". The person in charge who heard this searches for a home alarm that the LED 22 is off as a home alarm that does not reach the radio wave in the communication test, changes the installation location, or the like to make the radio wave reach.

  On the other hand, if the communication test control unit 72 does not determine that the communication test cycle has been reached in step S21, the process advances to step S33 to determine whether or not the communication test signal has been received. Here, it is assumed that at least one of the home alarm devices 10-2 to 10-5 other than the home alarm device 10-1 determines that the communication test period has reached and the communication test signal specifying the address A1 is transmitted. The communication test control unit 72 of the home alarm device 10-1 determines reception of the communication test signal in step S33, proceeds to step S34, and resets and starts its own 72-hour timer.

  For this reason, only the resident alarm that reached the communication test cycle of 72 hours at first among the resident alarms 10-1 to 10-5 constituting the interlocking group performs the communication test, and the other home alarm has a 72 hour timer. By making the reset start, communication test signals are prevented from being transmitted redundantly.

  Subsequently, the communication test control unit 72 of the home alarm device 10-1 that has received the communication test signal proceeds to step S35 and transmits a communication test response signal. At this time, the history sharing control unit 74 transmits the history sharing file 76 From among the self history information, the history information corresponding to 72 hours from the previous communication test is read out, included in the communication test response signal, and transmitted to the home alarm device of the interlocking source.

  In addition, when the communication test control unit 72 of the home alarm device 10-1 determines that the home communication device that transmitted the communication test signal has an abnormality in the communication test and determines that the communication test abnormality interlocking signal that was transmitted is received in step S36, step S37. Go to to output an interlock target alarm indicating a communication test error.

  The linkage destination alarm indicating this communication test abnormality blinks the LED 22 twice in a 10-second cycle. When the operation of the test switch 20 is detected in this state, for example, “Pip-pi communication test is abnormal. Another alarm Make a voice message such as "Please check". The person in charge who heard this searches for a home alarm that the LED 22 is off as a home alarm that does not reach the radio wave in the communication test, changes the installation location, or the like to make the radio wave reach.

  In step S38, the history sharing control unit 74 determines a history read request including a predetermined history read operation by the test switch 20 or reception of a history read signal from a reader having a home alarm device and a wireless communication function. Then, the process proceeds to step S39, the history sharing file 76 stored in the non-volatile memory 35 is read and transmitted to an external reader, and the history information of all the home appliances belonging to the interlocking group can be collected together and used I assume.

[Modification of the present invention]
(Automatic fire alarm system for specified small scale facilities)
Although the above embodiment takes an example of an alarm system using a wireless interlocking type residential alarm device installed in a general house, it is larger in scale than a general house, but there is no obligation to install a fire alarm system, a floor In a facility with an area of less than 3000 square meters, such as a group home providing housework support for elderly people and people with intellectual disabilities, etc. Similarly, with regard to the alarm system that constitutes the automatic fire alarm system for specified small-scale facilities, history information is shared by interlocking group units as well, and history information shared by group units can be collected as necessary for analysis and use I assume.

(Parent-child method)
In the above embodiment, when a plurality of alarm devices are installed in a dwelling unit to form an interlocking group, there is no distinction between a master unit and a slave unit, and the respective alarm units communicate with each other. A plurality of slave units may be provided to form an interlocking group, and the master unit of each group may have a relay function, and communication for interlocking alarm may be performed between the master units of different groups.

(Alarm)
Although the above-mentioned embodiment takes an example of a wireless type resident alarm that detects and warns a fire, a wireless type fire alarm other than the resident alarm, a gas leak alarm, a CO alarm, The same applies to an alarm system in which various security alarms are arranged and a system including these alarms in combination.

  In the above embodiment, the case where the sensor unit and the alarm output processing unit are integrally provided to the wireless alarm device is taken as an example, but as another embodiment, the sensor unit and the alarm output processing unit are separated. It may be a wireless alarm.

(Others)
Although the above embodiment is configured to share the history triggered by periodic communication or operation, the history may be shared triggered by the detection value of the alarm device. For example, the sharing of the history may be started when the detection value of the fire such as the smoke concentration or the temperature becomes a predictive detection value before the notification. As a result, even if the fire progresses and the alarm is burned down, since the history of the predictive stage is shared, it is possible to confirm the fire source after the fact. It is possible to continue sharing the history even after the fire detection value becomes the alarm value, but the alarm that has transmitted or received the fire interlock signal ends the history transmission so as not to interfere with the fire interlocking operation. Is preferred. Further, when the battery voltage becomes lower than a predetermined value, history sharing may be started. This makes it possible to share the history before the battery voltage decreases before communication becomes impossible.

  In the above embodiment, the state history of the alarm is shared. However, the communication history between the alarm such as communication availability or the number of interlocking stages may be shared.

  Further, the present invention is not limited to the above-described embodiment, 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 embodiment.

10, 10-1 to 10-5: Home alarm 12: House 16: Main body 18: Cover 20: Test switch 22: LED
26: smoke detector 30: control processor 32: communication unit 34: speaker 35: non-volatile memory 36: communication processor 38: transmission unit 40: reception unit 42: antenna 46: CPU
70: fire control unit 72: communication test control unit 74: history sharing control unit 76: history sharing file

Claims (6)

An interlocking group capable of communicating signals with each other is formed by a plurality of alarms installed in the monitoring area, and a fire alarm indicating an interlocking source is output when a fire is detected by any of the plurality of alarms. In an alarm system that transmits a interlock signal to another alarm to output a fire alarm indicating the interlock destination,
The alarm system characterized in that each of the alarm devices is provided with a history sharing control unit for storing and sharing own occurrence events and occurrence events of other alarm devices as history information.
In the alarm system according to claim 1,
The history sharing control unit transmits its own history information to another alarm by a communication test periodically performed among the plurality of alarms, and receives history information from the other alarm, An alarm system characterized by storing as history information.
In the alarm system according to claim 1,
The warning system according to claim 1, wherein the history sharing control unit stores the history information in a non-volatile memory.
The alarm system according to claim 1, wherein the history sharing control unit reads the history information and transmits it to the outside when detecting reception of a predetermined read operation or a read instruction signal. system.
5. The alarm system according to claim 4, wherein the alarm system further comprises a reader having a wireless communication function, the reader transmits the read instruction signal, and receives the history information. Alarm system.
  The alarm system according to claim 1, wherein the history sharing control unit transmits its own history information to another alarm device and detects another alarm when detecting reception of a predetermined read operation or a read instruction signal. The alarm system characterized in that the history information is read out and transmitted to the outside after the history information from the device is received and stored as the history information.

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