JP5368919B2 - Fire alarm system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire alarm system capable of improving workability without time and trouble required for registration processing. <P>SOLUTION: In the fire alarm system, each fire alarm TR includes a registration means for letting a control unit 1 perform registration processing for storing an identification code of all the fire alarms TR including the fire alarm itself as registration information in itself when receiving a predetermined operation input in an operation input reception unit 6. When the operation input reception unit 6 of any one of the fire alarms TR receives a predetermined operation input, the control unit 1 of the fire alarm TR transmits a wireless signal including registration information from a wireless transmission/reception unit 2 by multicast after finishing registration processing, and stores the registration information in all of the other fire alarms TR. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a fire alarm system in which a plurality of fire alarm devices transmit and receive radio signals using radio waves as a medium.

  Conventionally, it has been obligatory to install fire alarms in houses to reduce the number of victims of house fires, and multiple fire alarms are linked using wireless signals from the viewpoint of workability in existing houses. A fire alarm system is provided. Such a fire alarm system has a function in which a plurality of fire alarms installed in multiple locations each detect a fire and a function that sounds an alarm sound. When detected, the fire alarm sounds an alarm sound and transmits information notifying the fire detection to other fire alarms by wireless signals, so that not only the fire source fire alarm but also multiple fire alarms By sounding the alarm sound all together, it is possible to quickly and reliably notify the occurrence of a fire.

  In addition, by sending a fire alarm message and other messages from the parent device to each child device by multicast transmission, using a specific fire alarm device among the fire alarm devices belonging to the system as the parent device and other fire alarm devices as child devices, There is known a fire alarm system that can be surely linked to fire even when there are slave units that cannot establish communication paths with each other.

International Publication No. 2008/088079

  By the way, in addition to the fire alarm system for setting the parent device and the child device as described above, the fire alarm system is composed of a plurality of fire alarm devices having the same function, shape and design, and does not distinguish between the parent device and the child device. It has been known. In such a fire alarm system, since there is no fire alarm device such as the master unit of the above fire alarm system, all the fire alarm devices have registered the identification codes of all the fire alarm devices belonging to the system. Need to remember.

  However, in the past, since it is necessary to perform registration processing in each fire alarm device in order to store registration information in all fire alarm devices, there is a problem that the time required for the registration processing becomes longer and it takes much time and effort. there were.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a fire alarm system that can improve workability by omitting the time and labor required for registration processing.

  In order to achieve the above object, the invention of claim 1 comprises a plurality of fire alarms that transmit and receive radio signals using radio waves as media, and each fire alarm includes a fire detection means for detecting a fire, and a fire alarm. A fire for notifying the fire alarm to the alarm means when a fire is detected by the fire detecting means and a fire alarm for other fire alarm devices A control means for transmitting a radio signal including an alarm message from the radio transmission / reception means and receiving a radio signal transmitted from another fire alarm device and receiving the fire alarm message to the alarm means. Each fire alarm system is a fire alarm system having a unique identification code different from each other. A registration means for causing the control means to perform a registration process for storing the identification code of the fire alarm device itself as registration information, and when a predetermined operation input is accepted in any one of the fire alarm registration means, The fire alarm control means stores the registration information in all other fire alarms after the registration process is completed.

  According to a second aspect of the present invention, in the first aspect of the invention, the control means of the fire alarm device for performing the registration process sends a wireless signal including the registration information from the wireless transmission / reception means to all other fire alarm devices when the registration process is completed. The control means of all the other fire alarm devices store the registration information in themselves when receiving the radio signal.

  According to a third aspect of the present invention, in the first aspect of the invention, the control means of the fire alarm device that performs the registration process is configured to transmit a wireless signal including the registration information in a preset order from the wireless transmission / reception means when the registration process is completed. The subsequent fire alarm control means, when receiving the radio signal, causes the registration information to be stored in itself when the radio signal is received, and the radio signal is itself transmitted in a preset order from the radio transmission / reception means. The subsequent fire alarm is relayed and transmitted.

  The invention of claim 4 is the invention of claim 3, wherein the order is set based on the identification codes of all the other fire alarms registered in the fire alarm that performs the registration process. .

  The invention of claim 5 is characterized in that, in the invention of claim 3, the order is randomly set by the control means of the fire alarm that performs the registration process.

  According to the present invention, all the fire alarms can store all the fire alarms one by one because all the fire alarms can store the registration information obtained by performing the registration process with any one of the fire alarms. Compared with the case where the registration process is performed with a container, the time and labor required for the registration process can be saved, and the workability can be improved.

It is a figure which shows Embodiment 1 of the fire alarm system which concerns on this invention, (a) is schematic, (b) is a block diagram of a fire alarm device. It is a frame format of the radio signal in the same as above. It is a time chart figure which shows a registration process same as the above. It is a figure which shows Embodiment 2 of the fire alarm system which concerns on this invention, (a) is schematic, (b) is a time chart figure which shows a registration process.

(Embodiment 1)
Hereinafter, a fire alarm system according to a first embodiment of the present invention will be described with reference to the drawings. However, in the following description, when the fire alarm devices TR1 to TR5 are collectively shown, they are expressed as the fire alarm device TR. As shown in FIG. 1 (a), the present embodiment includes a plurality (five in this embodiment) of fire alarm devices TR1 to TR5, and wirelessly uses radio waves as a medium between the plurality of fire alarm devices TR. A signal is transmitted.

  As shown in FIG. 1B, the fire alarm device TR includes a wireless transmission / reception unit 2 (wireless transmission / reception means) that transmits and receives a wireless signal including a transmission source address, a destination address, and various messages via an antenna 3. Fire detection unit 4 (fire detection means) that senses the alarm, alarm unit 5 (alarm means) that notifies the user by sounding an alarm sound from the speaker in the event of a fire or abnormality, and a microcomputer or rewritable nonvolatile A memory (for example, EEPROM) is used as a main component, and when the fire detection unit 4 detects a fire, the alarm unit 5 sounds an alarm sound, and other fire alarms TR are notified of a fire alarm. A control unit 1 (control means) that transmits a radio signal including a fire alarm message from the radio transmission / reception unit 2, an operation input reception unit 6 that receives an operation input for stopping the sound of the alarm sound, and the like, And it includes a power supply unit 7 supplies operation power to each unit battery such as a battery as a power source. A unique identification code is assigned to each of the fire alarm devices TR1 to TR5, and the destination of the radio signal and the source fire alarm device TR can be specified by the identification code.

  The radio transmission / reception unit 2 transmits / receives a radio signal using radio waves as a medium in accordance with “radio station of low power security system” defined in Article 6, Paragraph 4, Item 3 of the Radio Law Enforcement Regulations. In addition, the fire detection unit 4 detects fire by detecting smoke, heat, flames, and the like generated with a fire, for example. In addition, since the radio | wireless transmission / reception part 2 and the fire detection part 4 are conventionally well-known, detailed description is abbreviate | omitted here.

  The control part 1 implement | achieves the various functions mentioned later by running the program stored in memory with a microcomputer. When the fire detection unit 4 detects the occurrence of a fire, the control unit 1 drives a buzzer included in the alarm unit 5 to sound an alarm sound, or an alarm voice message (for example, stored in a memory or the like in advance) , “It is a fire”, etc.) is sent to the speaker by transmitting a radio signal including a fire alarm message from the radio transmitter / receiver 2 in order to notify the fire alarm also in other fire alarm devices TR. Let Even when the wireless transmission / reception unit 2 receives a wireless signal transmitted from another fire alarm device TR, the control unit 1 controls the alarm unit 5 to sound an alarm sound.

  The operation input receiving unit 6 has a plurality of switches such as push buttons and dip switches, for example, and receives an operation input corresponding to each switch when the switch is operated, and an operation signal corresponding to the operation input. Output to the control unit 1. Further, when a predetermined operation input such as a push operation or a slide operation is received, the operation input receiving unit 6 causes the control unit 1 to perform a registration process for storing the identification codes of all other fire alarm devices TR. A registration switch (not shown) for outputting an operation signal is provided. That is, the registration switch and the control unit 1 constitute a registration unit.

  Further, when a predetermined operation input such as a push operation or a slide operation is received, the operation input receiving unit 6 multicasts a radio signal including a registration request message for requesting to register its own identification code from the radio transmitting / receiving unit 2. Is provided with a registration request switch (not shown) for outputting an operation signal for causing the control unit 1 to perform the processing to be transmitted. Note that the registration request switch is also used as a registration switch. For example, the registration request switch functions as a registration switch if the pressing time is within a predetermined time, and functions as a registration request switch when the predetermined time is exceeded. It may be configured.

  FIG. 2 shows a frame format of a radio signal transmitted and received by the fire alarm device TR. A synchronization bit (preamble: PA), a frame synchronization pattern (unique word: UW), a destination address DA, a source address SA, a message M, One frame is composed of a CRC code. Here, if the identification code of each fire alarm device TR is set as the destination address DA, only the fire alarm device TR of the identification code receives a radio signal and acquires a message. By setting a special bit sequence that is not assigned to the fire alarm device TR (for example, a bit sequence in which all bits are set to 1), all the fire alarm devices TR that are within the communication range by transmitting wireless signals by multicast Can get messages.

  Hereinafter, the registration process of this embodiment will be described with reference to FIG. For example, when the registration switch is operated in the operation input receiving unit 6 of the fire alarm device TR1, the control unit 1 of the fire alarm device TR1 receives a registration request from all other fire alarm devices TR2 to TR5. To migrate. Here, for example, when the registration request switch is operated in the operation input receiving unit 6 of the fire alarm device TR2, the control unit 1 of the fire alarm device TR2 multicasts a radio signal including a registration request message from the radio transceiver unit 2. Send with. When the control unit 1 of the fire alarm device TR1 in the registration mode receives the wireless signal, the control unit 1 stores the identification code of the fire alarm device TR2 included in the registration request message and makes a registration request together with its own identification code. A wireless signal including a response message (ACK) notifying that it has been received is transmitted from the wireless transmission / reception unit 2 to the fire alarm device TR2 by unicast. When receiving the radio signal, the control unit 1 of the fire alarm device TR2 stores the identification code of the fire alarm device TR1 in itself. By performing the above registration process for the other fire alarm devices TR3 to TR5, the fire alarm device TR1 stores the identification codes of all the fire alarm devices TR including its own identification code as registration information.

  Thereafter, when a certain time T has elapsed since the transition to the registration mode, the control unit 1 of the fire alarm device TR1 that has performed the registration process transmits a radio signal including the registration information from the radio transceiver unit 2 to all other fire alarms. The devices TR2 to TR5 are transmitted by multicast. At this time, the fire alarm device TR1 may be in the registration mode or may be terminated. And each control part 1 of other fire alarm devices TR2-TR5 will store registration information, ie, the identification code of all the fire alarm devices TR which belong to a system, if it receives the said radio signal. A wireless signal including ACK notifying that it has been received is returned from the wireless transmission / reception unit 2 to the fire alarm device TR1. Thus, all the fire alarm devices TR1 to TR5 belonging to the system can store the registered information.

  As described above, the registration information obtained by performing the registration process with any one of the fire alarm devices TR, that is, the identification codes of all the fire alarm devices TR belonging to the system, is displayed for all the fire alarm devices. Since each TR can store, the time and labor required for the registration process can be saved and the workability can be improved as compared with the case where the registration process is performed for all the fire alarms TR one by one. . In addition, the time required for the registration process can be shortened by multicastly transmitting wireless signals including registration information from the fire alarm device TR that has performed the registration process to all other fire alarm devices TR.

  In the present embodiment, a radio signal including registration information is transmitted to all other fire alarm devices TR by multicast when a certain time T has elapsed from the time when the mode is shifted to the registration mode (registration processing is started). However, for example, the operation input reception unit 6 of the fire alarm device TR that performs the registration process may operate the registration switch again so that the wireless signal including the registration information is not transmitted until the registration process end operation is received. Good.

(Embodiment 2)
Hereinafter, Embodiment 2 of the fire alarm system according to the present invention will be described with reference to the drawings. However, since the basic configuration of the present embodiment is the same as that of the first embodiment, in the following description, common parts are denoted by the same reference numerals and description thereof is omitted. In this embodiment, as shown in FIGS. 4A and 4B, when the control unit 1 of the fire alarm device TR that performs the registration process ends the registration process, a wireless signal including the registration information is transmitted to the wireless transmission / reception unit 2. To the subsequent fire alarm device TR in the order set in advance, and when the control unit 1 of the subsequent fire alarm device TR receives the radio signal, the control unit 1 stores the registration information in itself and transmits the radio signal. The wireless transmission / reception unit 2 relays and transmits it to the subsequent fire alarm device TR in the order set in advance.

  Hereinafter, the registration process of this embodiment will be described with reference to FIG. In the following description, it is assumed that a wireless signal including registration information is set in advance to be transmitted or relayed in the order of the fire alarm devices TR1, TR2, TR3, TR4, and TR5. For example, when the registration switch is operated in the operation input receiving unit 6 of the fire alarm device TR1, the control unit 1 of the fire alarm device TR1 shifts to the registration mode and includes its own identification code as in the first embodiment. The identification codes of all the fire alarms TR are stored in the memory as registration information. Thereafter, when a predetermined time T has elapsed since the transition to the registration mode, the control unit 1 of the fire alarm device TR1 that has performed the registration process transmits a wireless signal including the registration information from the wireless transmission / reception unit 2 to its subsequent fire alarm. The device TR2 is caused to transmit by unicast.

  When the control unit 1 of the fire alarm device TR2 receives the radio signal including the registration information, the control unit 1 stores the registration information in itself and transmits a radio signal including ACK notifying that the registration information has been received from the radio transmission / reception unit 2. The original fire alarm device TR1 is caused to send a reply, and a wireless signal including registration information is relay-transmitted from the wireless transmission / reception unit 2 to the subsequent fire alarm device TR3 by unicast. Thereafter, by performing the same processing as described above in the subsequent fire alarm devices TR3 to TR5, all the fire alarm devices TR1 to TR5 belonging to the system can store the registered information.

  As described above, in the present embodiment, a radio signal including registration information is transmitted or relayed to each fire alarm device TR in a preset order. Therefore, a radio signal including ACK notifying that registration information has been received is provided. There is no simultaneous transmission to the sender fire alarm device TR. Therefore, radio signals including ACKs from the respective fire alarm devices TR do not interfere with each other, and it is possible to notify the transmission source fire alarm device TR that the registration information has been reliably received.

  The order in which the wireless signals including the registration information are transmitted is based on the identification code of each of the other fire alarm devices TR registered to the fire alarm device TR that performs the registration process. It may be set or may be set at random.

  In the present embodiment, a radio signal including registration information is unicasted to the next fire alarm device TR when a certain time T has elapsed from the time when the mode is shifted to the registration mode (registration processing is started). As in the first embodiment, the wireless input signal containing the registration information is not transmitted until the registration switch is operated again in the operation input receiving unit 6 of the fire alarm device TR that performs the registration process to accept the end operation of the registration process. You may do it.

1 Control unit (control means, registration means)
2 Wireless transceiver (wireless transceiver)
4 Fire detection part (fire detection means)
5 Alarm section (alarm means)
6 Operation input acceptance part (registration means)

Claims (5)

  It consists of a plurality of fire alarms that transmit and receive radio signals using radio waves as a medium, and each fire alarm includes a fire detection means that detects a fire, an alarm means that notifies a fire alarm, and a wireless transmission and reception means that transmits and receives a radio signal And when a fire is detected by the fire detection means, the alarm means is notified of the fire alarm and the wireless signal including the fire alarm message for notifying other fire alarms of the fire alarm is transmitted from the wireless transmission / reception means, and And a control means for notifying the alarm means of a fire alarm when a fire alarm message is received by receiving a radio signal transmitted from another fire alarm, and each fire alarm has a unique identification code different from each other. It is a fire alarm system, and when each fire alarm receives a predetermined operation input, the identification codes of all the fire alarms including itself are registered as registered information. A registration means for causing the control means to perform a registration process to be stored is provided, and when a predetermined operation input is received in the registration means of any one of the fire alarm devices, the control means of the fire alarm device has completed the registration processing. A fire alarm system characterized in that the registered information is stored in all other fire alarms later.   When the registration process is completed, the control means for the fire alarm device that performs the registration process transmits a wireless signal including the registration information from the wireless transmission / reception means to all other fire alarm devices all at once, and all other fire alarm devices. 2. The fire alarm system according to claim 1, wherein each of the control means stores the registration information in itself when receiving the radio signal.   When the registration process is completed, the control unit of the fire alarm that performs the registration process transmits a wireless signal including the registration information from the wireless transmission / reception unit to the subsequent fire alarm of its own in a preset order. The control means of the alarm device stores the registration information in itself when receiving the radio signal, and relays and transmits the radio signal from the radio transmission / reception means to its subsequent fire alarm device in a preset order. The fire alarm system according to claim 1.   4. The fire alarm system according to claim 3, wherein the order is set based on identification codes of all other fire alarm devices registered in the fire alarm device performing the registration process.   4. The fire alarm system according to claim 3, wherein the order is randomly set by control means of a fire alarm device that performs registration processing.

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