JP2010003302A - Radio system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for performing communication tests on all alarms with simple operation. <P>SOLUTION: A slave radio device 2 transmits a reply signal including identification information assigned in advance upon receiving a test instruction signal transmitted from a master radio device 1. The master radio device 1 transmits the test instruction signal when receiving a test operation in an operating part 14. Afterwards, until the lapse of a predetermined time, the master radio device investigates the presence of a slave radio device 2 that has not transmitted a reply signal and outputs notification by specifying the slave radio device 2 as a transmission source based on the identification information upon receiving the reply signal. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an improvement of an alarm system in which each alarm device outputs an alarm when it detects the occurrence of a predetermined event, and outputs an alarm in conjunction with the other alarm devices by wireless communication.

  In recent years, it consists of alarm devices that communicate with each other wirelessly, and when one alarm device detects the occurrence of a predetermined event, it outputs an alarm by itself and also outputs an alarm in conjunction with notifying other alarm devices by wireless communication. Such an alarm system has been developed.

  As an example of such an alarm system, for example, the following Patent Document 1 discloses a fire alarm system including a fire alarm device that can suppress power consumption while preventing oversight of a radio signal transmitted from another fire alarm device. Proposed.

JP 2008-004033 A

  However, even in a system composed of alarm devices that communicate with each other wirelessly as described above, in a wireless communication test, a slave radio is operated one by one to transmit a test signal, and the master radio transmits the test signal. Since the test result is confirmed by notifying whether or not reception is possible, there is a problem that it takes much time and effort.

  An object of the present invention is to provide a system that solves the problem and can perform a communication test of all alarm devices with a simple operation.

  In order to solve the above problems, the present invention comprises a plurality of wireless devices that communicate wirelessly with each other, and each wireless device outputs an alarm when it detects the occurrence of a predetermined event, and the occurrence of an event in another device by wireless communication. In the radio system in which the alarm is output in conjunction with the notification, the sub radio includes the identification information pre-assigned to itself when receiving the test command signal transmitted by the main radio A control unit that transmits a response signal, and the master radio unit receives the test operation when the operation unit, the notification unit, the storage unit in which the identification information of the slave radio unit is registered, and the operation unit receives a test operation. When the response signal is received before a predetermined time elapses after the command signal is transmitted, the response signal is not received by identifying the child radio device of the transmission source based on the identification information. And a control unit for informing output investigate the presence or absence of Tsu child radio.

  The master communication device in the previous period further includes a test unit that compares the reception strength of the response signal with a predetermined value, and if the reception strength of the response signal is lower than the predetermined value, a notification is output as a communication abnormality. Also good.

  Further, if the master radio has not received the response signal, or there is a slave radio having the reception sensitivity lower than the predetermined value, the slave radio is notified and output as a communication abnormality. Also good.

  According to the present invention, it is possible to perform a communication test between the parent wireless device and all of the child wireless devices only by performing a test operation on the parent wireless device, and it does not take time.

  In addition, when the reception strength of the response signal is lower than the predetermined value, the master communication device considers a communication failure if there is not enough reception strength in the configuration in which the notification is output as a communication failure. By performing the above, a highly reliable radio system can be obtained.

  In addition, if there is a slave radio device that does not transmit a response signal, the master radio device can easily determine which slave radio device has a communication error in the configuration in which the slave radio device is notified and output as a communication error. This makes it easier to install a radio system.

It is a block diagram explaining the schematic structure of the radio | wireless machine which comprises the system of this invention. It is an external view of a main radio. It is the example of arrangement | positioning of the main | base station radio | wireless machine and slave radio | wireless machine for demonstrating the possible range of radio | wireless communication. It is a flowchart explaining operation | movement of the communication test of a main radio | wireless machine and a sub radio | wireless machine.

  The present invention comprises a plurality of wireless devices that communicate with each other wirelessly. Each wireless device monitors the occurrence of a predetermined event, outputs an alarm when the occurrence of the event is detected, and notifies other devices by wireless communication. It is applied to a radio system etc. that is configured to output an alarm in conjunction with Possible events include fire factors such as smoke and heat, and illegal entry of outsiders into the house.

  FIG. 1 is a block diagram illustrating a schematic configuration of a radio that constitutes an embodiment of the present invention. This embodiment is a fire alarm system, and includes a master radio device 1 and a plurality of slave radio devices 2 as a fire alarm device.

  FIG. 2 is an external view of the parent radio device 1. Although the external appearance of the slave radio device 2 is not shown, it is basically the same as that of the master radio device 1.

  Here, the main radio 1 includes an antenna 11a and a communication unit 11 that performs radio communication with other radios, a sensor (not shown), a detection unit 12 that monitors a fire factor, a sub radio 2, and the like. In order to perform the communication test, the test unit 13 that compares the received intensity of the radio signal transmitted from the slave radio device 2 with a predetermined value, the operation unit 14, and a notification that outputs a warning of the occurrence of a fire by a buzzer sound or voice Unit 15, a control unit 16 </ b> A that controls these components, and a storage unit 17 in which identification information of the slave radio device 2 is registered in advance. The operation unit 14 includes an operation button for receiving a stop operation for stopping alarm output, a test operation for executing a communication test described later, and the like. These buttons may be independent or combined. Although the power supply is not shown, a power supply circuit corresponding to a commercial power supply may be provided or a battery power supply may be used.

  The configuration of the slave radio device 2 is almost the same as that of the master radio device 1, but the test unit 13 that compares the received intensity of the transmitted radio signal with a predetermined value is not particularly required. Further, there is a difference in basic operation between the master radio device 1 and the slave radio device 2 as described below.

  That is, when the detection unit 12 detects a fire occurrence, the master wireless device 1 outputs a warning by driving a speaker included in the notification unit 15 to sound an alarm sound at a predetermined period (for example, every 4 seconds), and In order to output alarms in conjunction with all the slave radio devices 2, an interlock command signal is transmitted from the transmission / reception unit 2. If the notification signal transmitted when the slave radio 2 detects the occurrence of a fire is received, an alarm is output in conjunction with the slave radio 2 and the slave radio 2 other than the slave radio 2 that has transmitted the notification signal is also interlocked. In order to output an alarm, an interlock command signal is transmitted.

  On the other hand, when the detection unit 12 detects the occurrence of a fire, the slave radio device 2 outputs a warning by driving a speaker included in the notification unit 15 to sound an alarm sound at a predetermined period, and further to the master radio device 1. A notification signal is transmitted from the transmission / reception unit 2 to notify that the occurrence of fire has been detected. Further, when a interlock command signal is received from the master radio device 1 or another slave radio device 2, an alarm is output in conjunction with the command signal.

  The reception of the alarm output stop operation in the operation unit 14 can also be processed as an occurrence of an event in the same manner as in the case of the fire occurrence. In this case, if the alarm output stop operation is received by either the master radio device 1 or the slave radio device 2, the other devices also stop the alarm output for a predetermined time in conjunction with the operation.

  The radio communication format of the master radio device 1 and the slave radio device 2 is not particularly limited, and a polling format using identification information, a format in which the master radio device 1 assigns a time slot to each of the slave radio devices 2, and the like are possible. . It is necessary to prevent interference with other radio system by using a house code or selecting a channel to be used from a plurality of communication channels.

  Further, since the master radio device 1 has a function of transmitting an interlocking command signal when receiving the notification signal transmitted by the slave radio device 2, this radio system is centered on the master radio device 1 and has a child radio signal around it. By disposing the machine 2, it is possible to cover a wider range.

  FIG. 2 is an arrangement example of the master radio device 1 and the slave radio device 2 for explaining this.

  In this arrangement example, all the child radio devices 2 exist in the wireless communication possible range S1 of the parent radio device 1 arranged in the center. In addition, the master radio device 1 and the slave radio device 2 # 2 exist in the wireless communication possible range S2 # 1 of the slave radio device 2 # 1, and the radio communication possible range S2 # 2 of the slave radio device 2 # 2 exists in the possible range S2 # 2. A master radio device 1 and a slave radio device 2 # 1 exist, and each of a radio communication possible range S2 # 3 of the slave radio device 2 # 3 and a radio communication possible range S2 # 4 of the slave radio device 2 # 4 There is only the parent radio 1. Therefore, although the master radio device 1 can communicate with all the slave radio devices 2, the slave radio device 2 # 1 is the master radio device 1 and the slave radio device 2 # 2, and the slave radio device 2 # 2 is the master radio device. 1 and the slave radio devices 2 # 1 and the slave radio devices 2 # 3 and 2 # 4 can communicate with only the master radio device 1.

  Even when remote radio devices 2 that are far away cannot communicate with each other as in this arrangement example, the master radio device 1 receives a notification signal and transmits an interlocking command signal, so that all the sub radio devices 2 receive an alarm. Sound can be sounded. In addition, if the slave radio 2 is configured to sound an alarm sound not only by the interlock command signal but also by a notification signal transmitted by another slave radio 2, it is possible that the master radio 1 is out of order. Even in this case, at least the slave radio device 2 that has detected a fire and the slave radio device 2 within the possible range of the radio communication of the slave radio device 2 can make an alarm sound.

  Next, features of the present invention will be described. The radio system according to the present invention is characterized in that a communication test between the master radio 1 and the slave radio 2 can be executed only by a test operation in the master radio 1.

  Therefore, the control unit 16A of the parent radio device 1 transmits a predetermined test command signal when a test operation is accepted by the operation unit 14 of the own device, and then the child radio device 2 transmits until a predetermined time elapses. When the response signal is received, the transmission source child radio device 2 is specified based on the identification information, and the presence / absence of the child radio device 2 that has not transmitted the response signal is investigated and the notification unit 15 outputs the notification signal. Here, when all the slave radio devices 2 have transmitted response signals, for example, a sound such as “normal” is notified and output, and even at least one slave radio device 2 has not transmitted a response signal In such a case, a sound such as “communication abnormality” is notified and output, but a light emitting diode or a small liquid crystal panel or the like may be provided in the notification unit 15 and displayed there.

  On the other hand, when receiving the communication command signal transmitted from the parent wireless device 1, the control unit 16B of the child wireless device 2 transmits a response signal including identification information assigned in advance to the own device. ing.

  In addition, when the reception intensity of the response signal is lower than a predetermined value, the master communication device 1 may output a notification as a communication abnormality. In this way, if there is not enough reception strength, it is regarded as a communication abnormality, so that a highly reliable radio system can be obtained by performing such a communication test at the time of construction.

  As described above, the communication test is considered to be normal if the response signals of all the slave radio devices 2 can be received, and, as described herein, further, the reception strength of the response signal is more than a predetermined value. A communication test regarded as normal may be selected. In this case, a test button for executing each communication test may be provided independently on the operation unit 14.

  In addition, if there is a slave radio device that has not transmitted a response signal, the master radio device 1 may notify and output the slave radio device as a communication abnormality. That is, the master radio device 1 outputs a sound such as “cannot communicate with the slave device of number 2”. Then, since it is possible to easily know which child radio device 2 is in communication abnormality, the installation of the radio device system becomes easy.

  FIG. 3 is a flowchart for explaining the operation of the communication test in time series. Processing of the master radio device 1 (steps 101 and 102), processing of the slave radio device 2 # 1, and processing of the slave radio device 2 # 2 Are shown in time series.

  In this example, first, the master radio 1 detects that the test button is pressed and transmits a test command signal (step 101). Then, when receiving the test command signal, the slave radio device 2 # 1 and the slave radio device 2 # 2 transmit a response signal including identification information assigned in advance to the own radio device. On the other hand, until the predetermined time elapses, the master radio device 1 that has transmitted the test command signal transmits a response signal by specifying the child radio device 2 as the transmission source based on the identification information when receiving the response signal. The presence / absence of the two slave radios is checked and a notification is output. In this case, since all the slave radios 2 are transmitting response signals, a notification is output that there is no abnormality (step 102).

DESCRIPTION OF SYMBOLS 1 Master radio | wireless machine 2 Child radio | wireless machine 13 Test part 14 Operation part 15 Notification part 16A, 16B Control part 17 Memory | storage part

Claims (3)

It consists of multiple wireless devices that communicate with each other wirelessly. Each wireless device outputs a warning when the occurrence of a predetermined event is detected, and also outputs a warning in conjunction with the notification of the occurrence of the event to other devices via wireless communication. In the radio system configured as described above, when the slave radio receives the test command signal transmitted from the master radio, the slave radio includes a control unit that transmits a response signal including identification information assigned in advance to the master radio. The radio transmits the test command signal when a test operation is accepted by the operation unit, the notification unit, the storage unit in which the identification information of the slave radio is registered, and the operation unit, and then a predetermined time elapses. Until the response signal is received, the transmission source radio device is identified based on the identification information, and the presence / absence of the slave radio device that has not received the response signal is investigated and notified. Radio system comprising a controller configured to force.   2. The master communication device according to claim 1, further comprising a test unit that compares the reception strength of the response signal with a predetermined value, and outputs a notification as a communication abnormality when the reception strength of the response signal is lower than the predetermined value. Radio system. 3. The base radio device according to claim 1, wherein the master radio device does not receive the response signal or if there is a slave radio device having a reception sensitivity lower than the predetermined value, the slave radio device is notified as a communication abnormality. Output radio system.

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