JP2010049625A - Wireless alarm system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To execute an initial registration mode for registering identification information assigned to each alarm into another alarm by a simple operation, in a wireless alarm system. <P>SOLUTION: Identification information for identifying an alarm 1 belonging to the same system is assigned to a master alarm 1#1 and slave alarms 1#2-1#5. The master alarm 1#1 includes a storage part 16 for registering the identification information of the slave alarms 1#2-1#5, and when receiving a prescribed operation, transmits a registration command signal to the slave alarms 1#2-1#5, and starts a registration mode for registering the identification information included in a replied response signal into the storage part 16. At the same time, when receiving the registration command signal, the slave alarms 1#2-1#5 reply the response signal including the identification information assigned to the slave alarms 1#2-1#5. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an improvement in a wireless alarm system that transmits a control signal to each other and outputs an alarm in conjunction with a plurality of alarm devices when any alarm device detects an abnormality to be monitored.

  In the wireless alarm system as described above, in order to identify an alarm device belonging to the system, identification information assigned to each alarm device is registered in another alarm device as initial registration. For example, in a system consisting of a parent alarm device that controls the interlocking operation of the system and a child alarm device controlled by the parent alarm device, after performing a predetermined registration operation on the parent alarm device to enter the registration mode, By performing registration operation on each alarm device, a registration request signal including identification information of the child alarm device is transmitted from the child alarm device to the parent alarm device, and the parent alarm device is identified from the parent alarm device to the child alarm device. The identification information is registered in the parent alarm device and the child alarm device by the procedure of transmitting the response signal including the information.

In the following Patent Document 1, as an example of such prior art, in a wireless residential fire alarm system, the alarm device includes a radio signal receiving unit, a detecting unit, and a radio signal receiving unit that sequentially repeats a radio signal reception time and a downtime. Describes a configuration including a wireless transmission / reception unit combined with a wireless signal transmission unit that transmits a wireless signal including a fire signal for a transmission time longer than the pause time when a fire factor is detected. Here, identification information for identifying an alarm device belonging to the same system is assigned to the alarm device, and the alarm device transmits a radio signal including the identification information.
JP 2008-004033 A

  However, the wireless alarm system as described above has a problem that it takes time to register identification information in each of the parent alarm device and the child alarm device in the initial registration. Therefore, the present invention provides a wireless alarm system having a novel configuration that can execute the registration mode with a simple operation.

  The wireless alarm system according to the present invention transmits a control signal to each other, and when any alarm device detects an abnormality to be monitored, the wireless alarm system outputs an alarm in conjunction with a plurality of alarm devices. Identification information for identifying an alarm device belonging to the same system is assigned to the parent alarm device and the child alarm device, and the parent alarm device includes the child alarm device. It has a storage unit for registering alarm device identification information, and when a predetermined operation is accepted, sends a registration command signal to the child alarm device, and receives the identification information contained in the returned response signal. When the registration alarm signal is received, the child alarm device returns a response signal including identification information assigned to the child alarm device.

  Here, the parent alarm device may be configured to automatically end the registration mode when a predetermined time elapses from the time when the registration command signal is transmitted.

  The parent alarm device may be configured to automatically end the registration mode when a predetermined time elapses without receiving the response signal after transmitting the registration command signal.

  Furthermore, the parent alarm device may notify the number of child alarm devices whose identification information is registered in the storage unit of the parent alarm device when the registration mode ends. .

  According to the present invention, only the operation of the parent alarm device completes registration of the identification information of the alarm device belonging to the wireless alarm system.

  The parent alarm device automatically ends the registration mode when a predetermined time has elapsed from the time when the registration command signal is transmitted, or the parent alarm device receives a response signal after transmitting the registration command signal. In a configuration in which the registration mode is automatically terminated when a predetermined time has elapsed without the operation being performed, an operation for terminating the registration mode is unnecessary, which is more convenient.

  Also, in the configuration in which the alarm device notifies the number of registered child alarm devices when the registration mode ends, if there is a child alarm device that has failed to register, it can be easily known. Therefore, registration of identification information is ensured.

  The present invention is suitable for an alarm system that transmits a control signal to each other and outputs an alarm in conjunction with a plurality of alarm devices when any alarm device detects an abnormality to be monitored. Examples of such an alarm system include other alarm systems such as a residential fire alarm system, a gas leak alarm system, and a crime prevention alarm system. Hereinafter, the fire alarm system will be described as an example.

FIG. 1 is a block diagram showing a schematic configuration of an alarm device to which the present invention is applied, and FIG. 2 is a perspective view showing an appearance of the alarm device.
The alarm device 1 includes, for example, a detection unit 11 that detects heat or smoke due to fire as a monitoring target, an operation unit 12 that receives an alarm stop operation, an audio output unit 13 that outputs an alarm sound, and an antenna 18. A communication unit 14 that transmits and receives control signals to and from other alarm devices 1, a storage unit 16 that stores identification information assigned to the alarm device 1, and a control unit 17 that controls these units. I have. Reference numeral 11 a denotes a protective cover for protecting the detection unit 11, 12 a denotes a push button provided on the operation unit 12, and 13 a denotes a sound passage hole for a speaker constituting the audio output unit 13.

  FIG. 3 is a block diagram of an alarm system according to the present invention. The alarm device 1 includes a parent alarm device 1 # 1 and child alarm devices 1 # 2 to 1 # 5. The basic configuration of the parent alarm device 1 # 1 and the child alarm devices 1 # 2 to 1 # 5 is almost the same, but there are differences in the control program executed by the control unit 17, the storage capacity of the storage unit 16, and the like. . Moreover, transmission of the control signal by radio is always performed between the parent alarm device 1 # 1 and the child alarm devices 1 # 2 to 1 # 5, and the child alarm devices 1 # 2 to 1 # 5 are Does not transmit control signals. Each alarm device 1 is assigned with unique identification information in advance, and the parent alarm device 1 # 1 has its own identification information and all the identification information of the child alarm devices 1 # 2 to 1 # 5. Is registered in the storage unit 16. On the other hand, the child alarm devices 1 # 2 to 1 # 5 register their own identification information and the identification information of the parent alarm device 1 # 1 in the storage unit 16. These pieces of identification information are used for specifying a transmission source and a transmission destination in transmission of a control signal.

  The transmission of the control signal is performed according to, for example, a low power security system standard. In this standard, a radio station is composed of a master unit and a slave unit, and selects one of the channels in which the 400 MHz band is divided into 48 channels so that the master unit and the slave unit transmit signals to each other. Yes. In the present invention, it is assumed that the same channel is preselected in all alarm devices 1.

  The basic operation by the alarm device 1 is performed as follows. That is, when the child alarm devices 1 # 2 to 1 # 5 detect an abnormality to be monitored, the child alarm devices 1 # 2 to 1 # 5 output an alarm and transmit an interlock request signal to the parent alarm device 1 # 1. When the master alarm device 1 # 1 receives the interlock request signal, the master alarm device 1 # 1 outputs the interlock command signal to the other child alarm devices 1 # 2 to 1 # 5 while outputting the alarm in conjunction with the alarm signal. When the parent alarm device 1 # 1 detects an abnormality to be monitored by itself, the parent alarm device 1 # 1 outputs an alarm and transmits an interlock command signal to all the child alarm devices 1 # 2 to 1 # 5. Then, the child alarm devices 1 # 2 to 1 # 5, when receiving the interlock command signal transmitted from the parent alarm device 1 # 1, outputs the alarm in conjunction with each other.

  And if alarm stop operation is received by child alarm device 1 # 2-1 # 5 while outputting an alarm, child alarm device 1 # 2-1 # 5 will be sent to parent alarm device 1 # 1. Send an alarm stop request signal. When the parent alarm device 1 # 1 receives the alarm stop request signal, the parent alarm device 1 # 1 stops the alarm for a predetermined time and transmits an alarm stop command signal to the other child alarm devices 1 # 2 to 1 # 5. Further, when the parent alarm device 1 # 1 accepts the alarm stop operation, the parent alarm device 1 # 1 stops the alarm for a predetermined time and transmits an alarm stop command signal to all the child alarm devices 1 # 2 to 1 # 5. The child alarm devices 1 # 2 to 1 # 5 stop the alarm for a predetermined time when receiving the alarm stop command signal transmitted by the parent alarm device 1 # 1.

  As described above, the transmission of the control signal between alarm devices includes alarm device identification information in order to specify the transmission source and the transmission destination. In order to realize this, the identification information of all the child alarm devices 1 # 2 to 1 # 5 belonging to the alarm system is registered in the parent alarm device 1 # 1, and the child alarm devices 1 # 2 to 1 # 5 are registered. Needs to execute in advance a registration mode for registering the identification information of the parent alarm device 1 # 1, but the present invention is characterized in that the registration mode is efficiently performed.

  In other words, in the present invention, as a registration mode, the parent alarm device 1 # 1 transmits a registration command signal to the plurality of child alarm devices 1 # 2 to 1 # 5 when the operation unit 12 receives a predetermined operation. This registration command signal includes identification information assigned to the parent alarm device 1 # 1. The child alarm devices 1 # 2 to 1 # 5 that have received the registration signal register the identification information of the parent alarm device 1 # 1 in the storage unit 16 and include a response signal including the identification information assigned to the own device. Reply. The parent alarm device 1 # 1 registers the identification information included in the returned response signal in the storage unit 16. In such a configuration for executing the registration mode, registration of identification information of all the child alarm devices 1 # 2 to 1 # 5 in the parent alarm device 1 # 1 and operation of the child alarm device 1 # 1 only by operating the parent alarm device # 1 Since registration of the identification information of the parent alarm device 1 # 1 in the alarm devices 1 # 2 to 1 # 5 is completed, it does not take time and effort.

  The registration command signal is preferably transmitted by simultaneous broadcast (broadcast) and received by a plurality of child alarm devices 1 # 2 to 1 # 5 simultaneously. Moreover, it is desirable that the child alarm devices 1 # 2 to 1 # 5 return a response signal with a delay time set at random after receiving the registration command signal. In this way, unnecessary signal transmission due to collision of response signals does not occur, so that power can be saved.

  Further, the parent alarm device 1 # 1 may be configured to automatically end the registration mode when a predetermined time (for example, 8 minutes) elapses from the time when the registration command signal is transmitted. Alternatively, after the registration command signal is transmitted, the registration mode may be automatically terminated when a predetermined time (for example, 2 minutes) elapses without receiving a response signal. In these configurations, the parent alarm device 1 # 1 starts the timer every time a registration signal is transmitted or every time a response signal is received, and ends the registration mode when a time-out occurs. According to these configurations, an operation for ending the registration mode becomes unnecessary, which is more convenient.

  Furthermore, the parent alarm device 1 # 1 causes the audio output unit 13 to notify the number of child alarm devices 1 # 2 to 1 # 5 whose identification information has been registered in the storage unit 16 when the registration mode ends. It is good also as a structure. As a result, if there is a child alarm device 1 # 2 to 1 # 5 that has failed to be registered, it can be easily known, so that the alarm system can be surely initialized.

  FIG. 4 is a flowchart showing signal transmission between the parent alarm device 1 # 1 and the child alarm devices 1 # 2 to 1 # 4 in the registration mode in time series.

  In the registration mode of the flow diagram, the parent alarm device 1 # 1 accepts the registration operation at time T1, transmits a registration command signal at time T2, and all the child alarm devices 1 # 2 to 1 # 4 The registration command signal is received at the same time. Since the registration command signal includes identification information of the parent alarm device 1 # 1, the child alarm devices 1 # 2 to 1 # 4 register the identification information of the parent alarm device 1 # 1.

  Child alarm device 1 # 2 returns a response signal at time T3, child alarm device 1 # 3 returns a response signal at time T4, and child alarm device 1 # 4 returns a response signal at time T5. ing. However, the response signal returned from the child alarm device 1 # 4 is not received by the parent alarm device 1 # 1 due to the influence of, for example, noise radio waves. Since the response signal includes the identification information of the child alarm devices 1 # 2 and 1 # 3 that transmitted the response signal, the parent alarm device 1 # 1 has the child alarm devices 1 # 2 and 1 # 3. Register identification information.

  At the time T6 when a predetermined time has elapsed from the time T4 when the child alarm device # 3 returns the response signal, the parent alarm device 1 # 1 transmits a registration notification signal, and all the child alarm devices 1 # 2 to 1 # 4 The registration notification signal is received. The registration notification signal includes registration information specifying the registered child alarm devices 1 # 2, 1 # 3. Therefore, the child alarm devices 1 # 2 and 1 # 3 recognize that the own device has been registered from the registration information and end the processing, but the child alarm device 1 # 4 has its own device registered. Recognizing that there is no response, the response signal is transmitted again at time T8. The parent alarm device 1 # 1 receives the response signal and registers the identification information of the child alarm device 1 # 4.

  The parent alarm device 1 # 1 transmits the registration signal again at the time T8 when a predetermined time has elapsed from the time T4 when the child alarm device # 3 returned the response signal. The child alarm device 3 is included in the registration signal. It is recognized from the registered information that the device has been registered, and the process is terminated.

  The master alarm device 1 # 1 ends the registration mode at the time T9 when a predetermined time has passed without receiving another response signal after receiving the response signal of the child alarm device # 3, and the identification information is received. The number of registered child alarm devices 1 # 1 to 1 # 4 is notified. The parent alarm device 1 # 1 may automatically end the registration mode when a predetermined number (maximum) of child alarm devices 1 # 2 to 1 # 4 have been registered.

  If the child alarm devices 1 # 2 to 1 # 4 do not receive the registration notification signal transmitted by the parent alarm device 1 # 1 before the predetermined time elapses after the response signal is returned, the child alarm devices 1 # 2 to 1 # 4 output a sound. If it is set as the structure which notifies the failure of registration from the part 13, since the child alarm device 1 # 2-1 # 4 which registration failed can be identified immediately, it can respond quickly.

It is the block diagram which showed schematic structure of the alarm device to which this invention is applied. It is the perspective view which showed the external appearance of the alarm device to which this invention is applied. It is a block diagram of the alarm system by this invention. It is the flowchart which showed the signal transmission in a registration mode.

Explanation of symbols

1 Alarm 1 # 1 Parent Alarm 1 # 2-1 # 5 Child Alarm 14 Communication Unit 16 Storage Unit 17 Control Unit

Claims (4)

In a wireless alarm system that transmits control signals to each other and outputs alarms in conjunction with multiple alarms when any alarm detects an abnormality to be monitored,
It consists of a parent alarm device and a child alarm device, and identification information for identifying an alarm device belonging to the same system is assigned to the parent alarm device and the child alarm device,
The parent alarm device has a storage unit for registering identification information of the child alarm device, and upon receiving a predetermined operation, transmits a registration command signal to the child alarm device, and a response signal sent back While starting the registration mode for registering the identification information included in the storage unit,
When the child alarm device receives the registration command signal, the child alarm device returns a response signal including identification information assigned to the child alarm device. In claim 1,
The parent alarm device is a wireless alarm system that automatically ends the registration mode when a predetermined time has elapsed since the registration command signal was transmitted. In claim 1,
A wireless alarm system in which the parent alarm device automatically terminates the registration mode when a predetermined time elapses without receiving the response signal after transmitting the registration command signal. In claim 2 or 3,
When the registration mode ends, the parent alarm device is a wireless alarm system that notifies the number of child alarm devices whose identification information is registered in the storage unit of the parent alarm device.

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