JP4987942B2 - Wireless alarm system - Google Patents

Description

  The present invention relates to an improvement of a wireless alarm system in which control signals are mutually transmitted between alarm devices, and when any one of the alarm devices detects an abnormality, all the alarm devices cooperate to output an alarm.

  Moreover, in the above system, in order to maintain the reliability, the transmission state of the control signal is periodically confirmed, and if there is an abnormality, it is notified.

JP 2008-004033 A

  However, in the configuration that periodically checks the transmission state of the control signal and notifies if there is an abnormality, even if the resident notices the notification, the alarm device causing the transmission abnormality is repaired (the power supply battery Until an exchange or the like is performed, an abnormality is notified every time the transmission state is confirmed, which is troublesome.

  In view of the above, an object of the present invention is to provide a wireless alarm system having a novel configuration in which if there is an abnormality in transmission of a control signal, the abnormality can be prohibited by a simple operation.

A first wireless alarm system according to the present invention transmits a control signal to each other between alarm devices, and when any alarm device detects an abnormality, the wireless alarm device system outputs an alarm in conjunction with all the alarm devices. In this case, at least one of the alarm devices includes a storage unit that registers identification information of alarm devices belonging to the same group, a notification unit that notifies the transmission abnormality of the control signal, and an operation unit that receives a registration operation of the alarm device. The identification information of all alarm devices belonging to the same group is registered in the storage unit by the registration operation in the operation unit, and then registered in the storage unit when a re-registration operation is received in the operation unit. A registration command signal is transmitted to each alarm device, and only alarm devices that have returned a response signal within a predetermined time are automatically re-registered in the storage unit as alarm devices belonging to the same group. And a signal control unit.

Further, the second wireless alarm system according to the present invention transmits a control signal to each other between alarm devices, and when one of the alarm devices detects an abnormality, all alarm devices interlock to output an alarm. In the alarm system, at least one alarm device includes a storage unit for registering identification information of alarm devices belonging to the same group, an informing means for informing a transmission abnormality of the control signal, and an operation for accepting an alarm device registration operation The identification information of all alarm devices belonging to the same group is registered in the storage unit by the registration operation in the storage unit and the operation unit, and then the identification information of the alarm device causing the transmission abnormality is sequentially stored. And a communication control unit that automatically deletes from the storage unit identification information of all alarm devices that have caused a transmission abnormality when the operation unit receives a re-registration operation.

  According to the first wireless alarm system of the present invention, if there is a transmission error of the control signal, the alarm is notified, and after that, only the alarm device that does not cause the transmission abnormality is registered by the operation unit of the alarm device. It can be re-registered as an alarm device belonging to the same group. As a result, the problem that the same abnormality is notified every time the transmission state is confirmed is solved.

  Further, according to the second wireless alarm system according to the present invention, if there is an abnormality in transmission of the control signal, the alarm is notified, and after that, only the registration operation is performed at the operation unit of the alarm device, Only the identification information of the alarm device belonging to the same group remains to delete the identification information. As a result, the problem that the same abnormality is notified every time the transmission state is confirmed is solved.

These are the block diagrams which showed the basic composition of the alarm device which comprises the wireless alarm device system of an Example. These are the external views which looked at the alarm device from the surface side. These are the internal structure figures which looked at the alarm from the back side. These are the schematic diagrams showing the configuration of the wireless alarm system. FIG. 5 is a flowchart showing transmission of control signals in time series. FIG. 10 is another flow diagram showing transmission of control signals in time series.

  FIG. 1 is a block diagram showing a basic configuration of an alarm device constituting the wireless alarm system of the embodiment. The alarm device 1 is a residential fire alarm device that is used by being fixed to a ceiling surface or a wall surface of a house, and there is a functional distinction between a parent alarm device 1A and a child alarm device 1B. However, the basic components are common, all of which include a temperature detection unit 11 configured by a thermistor, an operation unit 12 that receives an alarm stop operation, and an output unit 14 that outputs an alarm from a speaker 13. A control unit 15 constituted by a microcomputer, a power source battery 16 for supplying power to each unit, a radio unit 18 having an antenna 17 and transmitting / receiving control signals to / from another alarm device 1, and a flash memory Etc., and a storage unit 19 composed of, for example. The control unit 15 and the wireless unit 18 constitute a communication control unit. Note that both or one of the parent alarm device 1A and the child alarm device 1B may be operated by an external AC power source.

  FIG. 2 is an external view of the alarm device 1 as viewed from the front side. The push button 12a constituting the operation unit 12, the sound passage hole 13a for the speaker 13, and the outside air are introduced into the surface of the housing 1a. And a vent hole 11a. The speaker 13 is accommodated immediately below the sound hole 13a, and the temperature detector 11 is disposed immediately below the vent hole 11a. The push button 12a is formed of a translucent resin or the like, and a display lamp 12b indicating the operation state of the apparatus is accommodated therein.

  FIG. 3 is an internal structural view of the alarm device 1 as viewed from the back side, and shows a state in which a back cover (not shown) is removed from the housing 1a. As shown in the figure, a power battery 16, a battery connector 16 a for connecting a lead wire derived from the power battery 16, a channel setting switch 18 a for wireless communication, and a registration button 18 b are arranged inside the housing 1 a. Has been. The lead wire is in a state in which the battery connector 16a is removed in order to prevent wasteful consumption of the power battery 16 at the time of product shipment, and the battery connector 16a is connected by the user at the start of use.

  FIG. 4 is a schematic diagram showing the configuration of the wireless alarm system, which includes one parent alarm device 1A and a plurality of child alarm devices 1B.

  The control signal is transmitted between the parent alarm device 1A and the child alarm device 1B. For this purpose, the channel setting common to each alarm device 1 and the child alarm belonging to the same group for the parent alarm device 1A are transmitted. It is necessary to register the identification information of the device 1B and register the identification information of the parent alarm device 1A for each child alarm device 1B. As the identification information, a unique number is stored in the storage unit 19 in advance at the manufacturing stage.

  The registration procedure of identification information at the time of system installation is, for example, as follows. First, a registration button is operated on the parent alarm device 1A to set the parent alarm device 1A to the group registration mode.

  Then, after setting the parent alarm device 1A to the group registration mode, the registration button of the child alarm device 1B is operated to transmit an identification information notification signal including the identification information of the child alarm device 1B from the child alarm device 1B. When the parent alarm device 1A receives the identification information notification signal from the child alarm device 1B, the parent alarm device 1A stores the identification information of the child alarm device 1B included in the signal in the storage unit 19 and includes the identification information of the parent alarm device 1A. A response signal is returned. When the child alarm device 1B receives the response signal, the child alarm device 1B stores the identification information of the parent alarm device 1A included in the signal in the storage unit 19.

  Through such processing, after registering the identification information of all the child alarm devices 1B in the parent alarm device 1A, the registration button of the parent alarm device 1A is operated again to end the group registration mode of the parent alarm device 1A. In this case, control signals can be transmitted between the alarm devices 1.

  The parent alarm device 1A may randomly generate group identification information when the registration button is first operated. In this case, the group identification information is notified to each child alarm device 1B by a response signal returned from the parent alarm device 1A. If this group identification information is adopted, since all the child alarm devices 1B can simultaneously receive the broadcast control signal transmitted by the parent alarm device 1A, the transmission efficiency is improved.

  Next, the basic operation of the embodiment will be described. The alarm device 1 operates the temperature detection unit 11 at a predetermined cycle, and outputs a warning when it determines that a fire has occurred by comparing the detected temperature with a threshold value. If the alarm device that detects this fire is the parent alarm device 1A, the alarm is interlocked and output by transmitting an interlock control signal to the child alarm device 1B by polling or broadcasting. On the other hand, if the alarm device that has detected the fire is the child alarm device 1B, a notification signal is transmitted to the parent alarm device 1A. The parent alarm device 1A that has received the alarm outputs an alarm and transmits an interlock control signal to the child alarm device 1B, thereby causing the alarm to be output in conjunction.

  Thereafter, when the master alarm device 1A receives an alarm stop operation while outputting an alarm, the master alarm device 1A stops outputting the alarm and transmits an interlock stop control signal to the child alarm device 1B, thereby stopping the output of the alarm. . On the other hand, when the child alarm device 1B receives an alarm stop operation, a notification signal is transmitted to the parent alarm device 1A. The parent alarm device 1A that has received this stops the alarm and transmits the interlock stop control signal to the child alarm device 1B to stop the alarm.

  Further, the parent alarm device 1A transmits a confirmation signal to the child alarm device 1B at a predetermined cycle (for example, every several hours) to confirm the transmission state, and if there is an abnormality, notifies the transmission abnormality from the notification means. . As the notification means, a dedicated one may be prepared, but it may also be used by the speaker 13 or the display lamp 12b of the output unit 14. In this case, a message “A communication error has occurred” may be output from the speaker 13, or the display lamp 12b may blink in a specific pattern. Similarly to the alarm, the child alarm device 1B may also notify the transmission abnormality.

  The notification of the transmission abnormality as described above is restored when the child alarm device 1B is repaired. However, until the repair is completed, every time the parent alarm device 1A confirms the transmission state, an abnormality is notified, which is troublesome.

  The present invention has been devised to solve such a problem, and as a mechanism for that purpose, the parent alarm device 1A notifies the transmission abnormality of the control signal by the notification means. Thereafter, when the alarm unit registration operation is accepted by the operation unit 12, a child alarm device that transmits a registration command signal to each of the child alarm devices 1B registered in the storage unit 19 and returns a response signal within a predetermined time. Only 1B is registered in the storage unit 19 as a child alarm device 1B belonging to the same group. Note that a dedicated operation button for accepting a registration operation may be prepared, but a registration operation may be performed by long-pressing the push button 12a of the operation unit 12. The registration operation may be performed at any time, whereby the child alarm device 1B belonging to the same group is re-registered.

  Here, the registration command signal includes the identification information of the parent alarm device 1A, but may further include group identification information. This group identification information may be newly generated information. Such identification information is stored in the storage unit 19 of the child alarm device 1B. The response signal of the child alarm device 1B with respect to the identification command signal includes identification information of the child alarm device 1B.

  FIG. 5 is a flowchart showing in time series transmission of control signals between the parent alarm device 1A and the child alarm device 1B when registering the identification information of the child alarm device 1B. In this flow, in step (a), the parent alarm device 1A transmits a registration command signal to the child alarm device 1B in accordance with the registration operation. In step (b), the child alarm device 1B stores the identification information and group identification information of the parent alarm device 1A included in the registration command signal, and at a timing set in advance for each child alarm device 1B. A response signal is returned. However, the child alarm device 1B # 4 does not return a response signal due to a failure. In step (c), the parent alarm device 1A stores identification information of the child alarm devices 1B # 1 to # 3 included in the response signal returned within a predetermined time.

  In the present invention, by providing such a function for registering identification information of an alarm device, when a resident notices a transmission abnormality notification, a transmission abnormality occurs only by performing a registration operation on the operation unit 12. The unallocated child alarm device 1B can be re-registered as a child alarm device 1B belonging to the same group. As a result, the problem that the same abnormality is notified every time the transmission state is confirmed is solved.

  In addition, instead of the above function for registering the identification information of the child alarm device 1B, when an alarm device registration operation is accepted by the operation unit 12 after notifying the transmission error of the control signal by the notification means, a transmission error is caused. The identification information of the child alarm device 1B may be deleted from the storage unit 19. In this case, the parent alarm device 1A may sequentially record the identification information of the child alarm device 1B that caused the transmission abnormality.

  FIG. 6 is a flow chart showing transmission of control signals between the parent alarm device 1A and the child alarm device 1B in time series when deleting the identification information of the child alarm device 1B. In this flow, in step (a), the parent alarm device 1A deletes the identification information of the child alarm device 2 # 3 that caused the transmission abnormality from the storage unit 19 of its own device in accordance with the registration operation. In step (b), the parent alarm device 1A transmits a confirmation signal to the child alarm device 1B and confirms whether there is a transmission abnormality. Here, although no response signal is returned from the child alarm device 2 # 3, since the identification information of the child alarm device 1B # 3 is deleted in the parent alarm device 1A, no transmission abnormality is notified.

  According to the function of deleting the identification information of the child alarm device 1B that has caused such a transmission abnormality, when the resident notices a transmission abnormality notification, the registration alarm is simply performed by the operation unit 12. The device 1A deletes the identification information of the child alarm device 1B that caused the transmission abnormality from the storage unit 19 of its own device, and as a result, only the identification information of the child alarm device 1B that does not cause the transmission abnormality remains. become. As a result, the problem that the same abnormality is notified every time the transmission state is confirmed is solved.

DESCRIPTION OF SYMBOLS 1 Alarm device 12 Operation part 12b, 13 Notification means 15, 18 Communication control part 19 Storage part A Wireless alarm system

Claims (2)

In the wireless alarm system where all alarm devices are linked to output an alarm when one of the alarm devices detects an abnormality by mutually transmitting control signals between alarm devices.
At least one of the alarms
A storage unit for registering identification information of alarm devices belonging to the same group;
Informing means for informing the transmission abnormality of the control signal;
An operation unit for accepting an alarm registration operation;
When the registration operation in the operation unit registers the identification information of all alarm devices belonging to the same group in the storage unit, and then receives a re-registration operation in the operation unit, the alarm registered in the storage unit A communication control unit that automatically transmits a registration command signal to each of the alarm devices, and automatically re-registers the alarm device that has returned a response signal within a predetermined time as an alarm device belonging to the same group in the storage unit; With wireless alarm system. In the wireless alarm system where all alarm devices are linked to output an alarm when one of the alarm devices detects an abnormality by mutually transmitting control signals between alarm devices.
At least one of the alarms
A storage unit for registering identification information of alarm devices belonging to the same group;
Informing means for informing the transmission abnormality of the control signal;
An operation unit for accepting an alarm registration operation;
By registering operation in the operation unit, identification information of all alarm devices belonging to the same group is registered in the storage unit, and then the identification information of alarm devices that cause transmission abnormality is sequentially stored, and the operation A wireless alarm device system comprising: a communication control unit that automatically deletes identification information of all alarm devices causing a transmission abnormality from the storage unit when a re-registration operation is received at the unit.

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