JP2014056419A - Wireless communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless communication system capable of easily and reliably executing determination of installability.SOLUTION: Receiving a predetermined operation input on an operation input reception section 6 and when predetermined conditions are satisfied, a control section 1 performs a radio wave check using a severer determination reference; and when the conditions are not satisfied, the control section 1 performs a manual operation test using a less severe determination reference. That is, the operation input for the radio wave check and the operation input for the manual operation test are the same, and the control section 1 automatically determines a suitable one from the radio wave check and the manual operation test responding to the common operation input and executes the same. Thus, the operation input of the wireless communication system can be executed easily and reliably.

Description

  The present invention relates to a wireless communication system that performs wireless communication between a plurality of wireless devices.

  As a conventional wireless communication system, for example, there is a wireless fire alarm system described in Patent Document 1.

  This conventional example is equivalent to a fire alarm device in which each of a plurality of wireless devices senses a fire and issues an alarm. The wireless device that senses a fire issues an alarm, transmits a radio signal, and receives a radio signal. When other radio devices issue an alarm, all the radio devices issue an alarm in conjunction with each other.

  By the way, in the wireless communication system as in the above conventional example, each wireless device is fixedly installed and operated in a different place (for example, a living room of a house, a kitchen, a bedroom, etc.). It is necessary to confirm that normal wireless communication is possible.

  For example, in the case of the conventional example described in Patent Document 1, a radio signal including a reply request message for confirmation is transmitted from a specific fire alarm (master unit), and a response is returned from another fire alarm (slave unit). An operation (radio wave check) is performed to confirm that the radio signal including the message is normally received by the parent device.

  However, in recent years, with the spread of the Internet, the number of homes where wireless LAN is introduced is increasing, and radio waves in the frequency band used in the wireless LAN interfere with radio waves in the frequency band used in the wireless communication system. Communication may be hindered. In addition to the wireless LAN, there are many electrical devices that emit electromagnetic noise, such as household electrical devices that use radio waves (such as radio remote controls) and microwave ovens. Furthermore, radio wave propagation characteristics may change and communication may be hindered by the installation of metallic fixtures or the installation of new walls in a house. For this reason, even if wireless communication is possible between the master unit and all the slave units at the time of installation of the wireless device, a new wireless LAN or electrical device may be introduced after installation or radio wave propagation may be affected. If there is a significant change in the environment, radio wave usage may change, making it difficult for wireless devices to communicate with each other. Then, if a fire occurs with such a situation left unattended, there is a possibility that message transmission by wireless communication becomes impossible and alarms cannot be linked with all wireless devices (fire alarm devices).

  Therefore, in the conventional example described in Patent Document 1, whether or not wireless communication between all the slave units and the master unit is checked periodically (for example, every 24 hours). In other words, the master unit periodically broadcasts a message (periodic monitoring message) for checking whether wireless communication is possible, and each slave unit receiving the periodic monitoring message returns a response message to the base unit. The master unit checks whether wireless communication with each slave unit is possible.

  Also, in each slave unit, if a regular monitoring message is not received even after a predetermined time (a time longer than the periodic monitoring period, for example, 30 hours) has elapsed since the reception of the previous regular monitoring message, It is determined that an abnormality has occurred, and the abnormality is reported with a buzzer sound. And in the subunit | mobile_unit which alert | reported abnormality, a manual test is started by performing predetermined operation. The manual test is similar to the radio wave check at the time of installation.A radio signal including a reply request message for confirmation is transmitted from the slave unit, and a radio signal including a response message returned from the master unit is normally transmitted from the slave unit. It is a test to confirm that it is received.

  In other words, if the slave unit that has notified the abnormality fails to receive the periodic monitoring message, it may be able to communicate wirelessly with the master unit in a subsequent manual test. Therefore, if the manual test fails, it is necessary to take some measures (changing the installation location, replacing the battery, etc.) for the slave unit that has notified the abnormality, but if the manual test is successful, You do not have to take any action.

JP 2009-171067 A (see paragraphs 0056 to 0059 and FIG. 5)

  By the way, in the above conventional example, the operation input for starting the radio wave check is different from the operation input for starting the manual test. That is, the judgment conditions in the radio wave check are stricter than the judgment conditions in the manual test, and the operation inputs are different in order to use the radio wave check and the manual test properly according to the purpose.

  However, the radio wave check and the manual test share the same substantial operation (radio signal transmission procedure, determination result notification method, etc.), except for the difference in determination conditions. For this reason, if an operator mistakenly conducts a manual test at the time of installation, the judgment conditions are looser than the radio wave check, and thus communication errors may frequently occur during periodic monitoring.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a wireless communication system that can easily and surely determine whether installation is possible.

  The wireless communication system according to the present invention includes a transmission unit that transmits a radio signal using radio waves as a medium, a reception unit that receives the radio signal, a detection unit that detects occurrence of a predetermined event, and the detection unit that includes the event. A control means for transmitting the radio signal including a predetermined notification message from the transmission means when a signal is detected, an acceptance means for accepting an operation input, and a notification means for performing notification using at least one of sound and light And the control means causes the transmission means to transmit the radio signal including the radio wave confirmation message when the accepting means accepts an operation input for radio wave confirmation, and another radio If the reception means receives a response message to the radio wave confirmation message transmitted from the machine, it is judged successful, while a predetermined condition is satisfied. If the reception means receives the response message and the reception strength of the radio signal including the response message is equal to or greater than a predetermined threshold value, it is determined to be successful, and the determination result of success or failure is determined. Is notified to the notification means.

  In this wireless communication system, it is preferable that the condition is that a time when the operation input for confirming the radio wave is received by the reception unit is within a predetermined time after power is supplied to the control unit.

  In this radio communication system, the control unit of a specific radio unit among the plurality of radio units shifts to a registration mode when an operation input for switching to a registration mode for performing registration is received by the reception unit, When the operation input for transmitting a registration message is accepted by the accepting means, the control means of other radios excluding a specific radio is a radio signal including a registration message with its own identification code as a source address The control means of the specific radio device stores the transmission source address of the radio signal including the registration message when the reception means receives the registration message. The condition is that the operation input or registration for transmitting the registration message is performed when the reception means accepts the radio wave confirmation operation input. It is preferred operation input for switching the mode is within a predetermined time after being accepted by the accepting means.

  In this wireless communication system, the wireless device includes a wireless device main body in which the respective units are housed, an attachment member in which the wireless device main body is detachably attached to a front surface, and a back surface is fixed to a construction surface; An attachment / detachment detection means for detecting that the wireless device main body is attached to the attachment member, and the condition is that when the operation input of the radio wave confirmation is received by the reception means, the attachment / detachment detection means It is preferable that it is within a predetermined time after it is detected that the wireless device main body is attached to the attachment member.

  In this wireless communication system, the reception unit again performs the process until a predetermined time elapses after the condition is satisfied and the reception unit first receives the radio wave confirmation operation input. When an operation input for radio wave confirmation is accepted, the control means succeeds when the receiving means receives the response message and the reception strength of the radio signal including the response message is equal to or higher than a predetermined threshold value. It is preferable to judge that.

  In this wireless communication system, when the control unit determines that reception of the radio signal including the response message has failed, the control unit again transmits the radio signal including the radio wave confirmation message from the transmission unit, and receives the reception signal. Preferably, the means receives the response message and determines that the reception is successful when the reception strength of the radio signal including the response message is equal to or higher than a predetermined threshold.

  In this wireless communication system, it is preferable that the condition is that a time interval at which the reception unit receives the radio wave confirmation operation input exceeds a predetermined upper limit value.

  In this radio communication system, the control unit of a specific radio unit among a plurality of the radio units periodically transmits a radio signal including a regular monitoring message from all the other radio units from the transmission unit. And the control means of the other radio device causes the transmission means to transmit a radio signal including a response message when the periodic monitoring message is received, and the control means of the specific radio device If the response message of any of the wireless devices is not received, the notification means is notified of a periodic monitoring error, and the condition is that the reception means has received an operation input for checking the radio wave It is preferable that the time point is within a predetermined time from the notification of the regular monitoring error.

  In this radio communication system, the control unit of a specific radio unit among a plurality of the radio units periodically transmits a radio signal including a regular monitoring message from all the other radio units from the transmission unit. And the control means of the other radio device causes the transmission means to transmit a radio signal including a response message when the periodic monitoring message is received, and the control means of the specific radio device When the response message of any one of the wireless devices is not received, an operation input for causing the notification unit to notify the periodic monitoring error and further stopping the notification of the periodic monitoring error by the receiving unit is provided. When received, the notification means stops the notification of the periodic monitoring error, and the condition is that the time when the operation input for the radio wave confirmation is received by the reception means is It is preferred from the notification stop the periodic monitoring error is within a predetermined time period.

  In this radio communication system, the control unit of a specific radio unit among a plurality of the radio units periodically transmits a radio signal including a regular monitoring message from all the other radio units from the transmission unit. And the control means of the other radio device causes the transmission means to transmit a radio signal including a response message when the periodic monitoring message is received, and the control means of the specific radio device When the response message of any one of the wireless devices is not received, the notification unit notifies the periodic monitoring error, and the control unit of the other wireless device receives the periodic monitoring message. If the periodic monitoring message is not received even after a period longer than the transmission interval of the periodic monitoring message, a periodic monitoring error is notified to the notification means. So, the condition, the wireless device detects the periodic monitoring error, it is preferable that the the operation input of the radio check reception unit after the occurrence of the periodic monitoring error is that accepted.

  In this radio communication system, the control unit of a specific radio unit among a plurality of the radio units periodically transmits a radio signal including a regular monitoring message from all the other radio units from the transmission unit. And the control means of the other radio device causes the transmission means to transmit a radio signal including a response message when the periodic monitoring message is received, and the control means of the specific radio device When the response message of any one of the wireless devices is not received, the notification unit notifies the periodic monitoring error, and the control unit of the other wireless device receives the periodic monitoring message. If the periodic monitoring message is not received even after a period longer than the transmission interval of the periodic monitoring message, a periodic monitoring error is notified to the notification means. The condition is that after the occurrence of the periodic monitoring error, the reception means accepts the radio wave confirmation operation input, and the number of times until the radio wave confirmation is successful is equal to or less than a predetermined number of times. Is preferred.

  In this wireless communication system, the wireless device including the detection unit that detects the occurrence of a fire as the event, the wireless device including the detection unit that measures air quality as the event, and a person in a monitoring area as the event It is preferable that at least any one of the wireless devices is included in the wireless device including the detection unit that detects the presence of the wireless device.

  In the wireless communication system of the present invention, the control means automatically determines the appropriate one of the relatively strict judgment criteria and the relatively loose judgment criteria for the operation input accepted by the acceptance means, and implements it. Therefore, there is an effect that it is possible to easily and reliably execute the determination of whether or not installation is possible.

1 is a system configuration diagram showing an embodiment (fire alarm system) of a wireless communication system according to the present invention. It is a flowchart for operation | movement description same as the above.

  Hereinafter, the technical idea of the present invention to a wireless communication system (fire alarm system) using a fire alarm device as a radio device that detects a fire and sounds an alarm sound and transmits a radio signal including a radio wave as a medium and including a fire detection message. An embodiment to which is applied will be described.

  FIG. 1 is a system configuration diagram of the present embodiment, and a fire alarm system is configured by a plurality (only two in the drawing) of fire alarms TR. In the following description, when the fire alarms TR are individually indicated, they are indicated as fire alarms TR1, TR2,..., TRn, and when collectively indicated, they are indicated as fire alarms TR.

  The fire alarm TR includes a control unit 1, a wireless transmission / reception unit 2, an antenna 3, a fire detection unit 4, a notification unit 5, an operation input reception unit 6, a battery power supply unit 7, and the like. The wireless transmission / reception unit 2 transmits / receives a radio signal using a radio wave as a medium in accordance with “radio device for low power security system” defined in Article 6, Paragraph 4, Item 3 of the Radio Law Enforcement Regulations. The antenna 3 emits a radio wave that is a medium of a radio signal and receives a radio wave. The antenna 3 may be either an exposed type exposed from the housing of the fire alarm TR or a built-in type incorporated in the housing. In addition, the fire detection unit 4 detects a fire by detecting smoke, heat, flame, or the like generated with the fire, for example. However, detailed configurations of the wireless transmission / reception unit 2 and the fire detection unit 4 are well known in the art and will not be described in detail.

  The notification unit 5 includes a light-emitting diode (LED) and a speaker, a light-emitting circuit that emits the LED, and a drive circuit that causes the speaker to ring, and is controlled by the control unit 1 as described later to control light (LED) and sound. Various notifications (including fire alarms) by (speakers). The operation input receiving unit 6 has one or more switches (for example, push button switches). When the switch is operated, an operation input corresponding to each switch is received and an operation signal corresponding to the operation input is controlled. Output to part 1. The battery power supply unit 7 supplies operation power to each unit using a battery such as a dry battery as a power source.

  The control unit 1 includes a microcomputer (microcomputer), a memory unit 1a, and the like, and realizes various functions to be described later by executing a program stored in the memory unit 1a (or ROM <ROM> not shown). To do. Each of the fire alarm devices TR1, TR2,... Is assigned a unique identification code and stored in the memory unit 1a, and the destination of the radio signal and the source fire alarm devices TR1, TR2,. Can be identified.

  For example, when the fire detection unit 4 detects the occurrence of a fire, the control unit 1 sounds an alarm sound from the speaker of the notification unit 5 or an alarm voice message (for example, stored in the memory unit 1a in advance). , “It ’s a fire”, etc.). Further, the control unit 1 causes the wireless transmission / reception unit 2 to transmit a radio signal including a fire alarm message in order to notify the fire alarm in the other fire alarm devices TR together with the notification of the fire alarm. In addition, when the wireless transmission / reception unit 2 receives a wireless signal transmitted from another fire alarm device TR, the control unit 1 controls the notification unit 5 to notify the fire alarm. In other words, the control unit 1 has a function of controlling the notification unit 5 when the fire detection unit 4 detects a fire to notify a fire alarm and transmitting a radio signal including a fire alarm message from the wireless transmission / reception unit 2. Yes.

  Here, in the radio equipment regulation Article 49-17 “Radio equipment of low-power security system radio equipment”, the period during which radio signals may be transmitted continuously (transmission period) is 3 seconds or less. In addition, it is stipulated that a period during which a radio signal should not be transmitted (pause period) provided between the transmission period and the transmission period is 2 seconds or more (see No. 5 of the same article). For this purpose, the control unit 1 causes the wireless signal to be transmitted during the transmission period that complies with the wireless facility rules, and stops the transmission during the suspension period and enables reception.

  In addition, the control unit 1 repeatedly counts a predetermined intermittent reception interval with a timer built in the microcomputer, and activates the radio transmission / reception unit 2 every time the count is completed, so that a desired radio wave (a radio transmitted by another fire alarm TR is transmitted). Signal) can be received. If a desired radio wave is not captured, the control unit 1 immediately stops the wireless transmission / reception unit 2 and shifts to a standby state. As a result, the average power consumption is greatly reduced to extend the battery life of the battery power supply unit 7. The radio wave reception check is performed by the control unit 1 based on a received signal strength indication signal (RSSI signal) output from the wireless transmission / reception unit 2 and is a DC voltage signal proportional to the magnitude of the received signal strength. Is going.

  Thus, in the present embodiment as well, as in the conventional example described in Patent Document 1, the fire alarm device TRi (i = 1, 2,..., N) that detects a fire not only notifies the fire alarm but also transmits a radio signal. This is sent to notify the other fire alarm devices TR1 to TRi-1 and TRi + 1 to TRn that a fire has occurred. Then, when the other fire alarm devices TR1 to TRi-1 and TRi + 1 to TRn that have received the radio signals notify the fire alarm, the fire alarm is notified by all the fire alarm devices TR1 to TRn.

  By the way, if low-power radio is used, the wireless communication distance can be sufficiently covered within a normal residential area, so the wireless signal transmitted from the fire-source fire alarm device TR Receiving in TR is usually possible enough. However, as the number of fire alarms TR increases, it may be difficult to always enable wireless communication among all the fire alarms TR. For example, an electronic device that emits electromagnetic noise is installed near the fire alarm TR, and the radio communication of the fire alarm TR is interrupted by the electromagnetic noise during the time zone when the electronic device is operating. Can be considered.

  Therefore, in the present embodiment, a specific fire alarm device TR1 (hereinafter referred to as a parent device) is installed in a place where it can wirelessly communicate with all other fire alarm devices TR2 to TRn (hereinafter referred to as child devices). ing. Then, the master unit TR1 that has received the radio signal transmitted from any of the slave units TRj (j = 2, 3,..., N) relays the radio signal toward all the slave units TR2 to TRn, All the fire alarms TR1 to TRn can transmit and receive radio signals to and from each other.

  In addition, the control unit 1 of the base unit TR1 activates the wireless transmission / reception unit 2 periodically (for example, every 24 hours) to check whether the slave unit TRj is operating normally (periodic monitoring). A wireless signal including a periodic monitoring message is transmitted. In each slave unit TRj, the control unit 1 monitors whether the fire detection unit 4 has failed and whether the battery power source unit 7 has run out of battery at regular intervals (for example, every hour), and the monitoring results (failures) And whether or not the battery is dead) are stored in the memory unit 1a. When receiving the regular monitoring message from the parent device TR1, the control unit 1 of the child device TRj includes a notification message (corresponding to a response message) for notifying the monitoring result stored in the memory unit 1a. A signal is returned to the main unit TR1. After transmitting the radio signal including the notification message, control unit 1 of base unit TR1 switches radio transmitting / receiving unit 2 to the reception state and receives the radio signal transmitted from each slave unit TRj. If there is a slave unit TRj that does not transmit a radio signal including a notification message within a predetermined time after transmitting a radio signal including a regular monitoring message, the control unit 1 of the master unit TR1 A warning sound is emitted and a light emitting diode is emitted to report an abnormality (cannot communicate) of the slave unit TRj, that is, a periodic monitoring error. Alternatively, even when the notification message transmitted by any of the slave units TRj is to notify the monitoring result that there is a failure or the battery is exhausted, the control unit 1 of the master unit TR1 has an abnormality (there is a fault, the battery The notification unit 5 is notified of the occurrence of a breakout (periodic monitoring error). However, when the control unit 1 of the parent device TR1 and the child device TRj determines that a failure or a battery has run out, the notification unit 5 immediately notifies the occurrence of an abnormality. Note that the normality of the communication path between the parent device TR1 and each child device TRj can always be confirmed by the parent device TR1 periodically monitoring each child device TRj as described above. Further, when an operation input for stopping the notification is received by the operation input receiving unit 6 when the periodic monitoring error is notified, the control unit 1 stops the notification of the periodic monitoring error by the notification unit 5.

  By the way, in the present embodiment, before starting the operation of the system, the identification code of each slave unit TRj is stored (registered) in the memory unit 1a of the master unit TR1, and the master unit TR1 is identified in the memory unit 1a of each slave unit TRj. A work (registration work) for storing (registering) the code is performed. That is, a radio signal including the registration request message is transmitted from the slave unit TRj that has received an operation input for transmitting the registration request message. On the other hand, the master unit TR1 that has received the operation input for switching to the registration mode and has switched to the registration mode receives the radio signal, and stores the identification code of the transmission source address in the memory unit 1a according to the registration request message. The identification code of slave unit TRj is registered. Further, if a radio signal including the registration completion message and transmitting the registration request message and having the identification code of the slave unit TRj set as the destination address is transmitted from the master unit TR1, the source unit in the slave unit TRj that has received the radio signal By storing the address identification code in the memory unit 1a, the identification code of the parent device TR1 is registered.

  Here, since the master unit TR1 is installed in a place where it can wirelessly communicate with all the other slave units TR2 to TRn, the same confirmation work as the conventional example described in Patent Document 1 (hereinafter referred to as radio wave check) is required. It is. In the case of the conventional example described in Patent Document 1, in the radio wave check, a radio signal including a reply request message for confirmation is transmitted from the parent device, and the wireless signal including a response message returned from each child device is normally transmitted from the parent device. Confirm that it is received. However, in determining whether installation is possible, stricter criteria are adopted than in determining whether communication is possible during regular monitoring. That is, in the regular monitoring, if the message included in the wireless signal can be acquired, the control unit 1 determines that it is normal regardless of the reception strength (RSSI value) of the wireless signal. On the other hand, in the radio wave confirmation at the time of installation, the control unit 1 can not only acquire the response message (message returned to the radio wave confirmation message) included in the radio signal but also receive the radio signal including the response message. It is judged that installation is possible (successful radio wave confirmation) when the intensity is above the threshold. In other words, even if the response message can be acquired, if the reception strength of the radio signal including the response message is less than the threshold value, the control unit 1 determines that installation is impossible (radio wave confirmation failure). The control unit 1 causes the notification unit 5 to notify the result of radio wave confirmation.

  By the way, as explained in the prior art, a manual test is performed on a radio device that has reported an abnormality in communication failure during periodic monitoring. (Judgment criteria looser than the check). Therefore, in the conventional example described in Patent Document 1, the operation input received by the operation input receiving unit 6 is different between the radio wave check and the manual test. For this reason, there is a possibility that the installer (resident) mistakes the operation of the operation input receiving unit 6 and performs a manual test at the time of installation.

  Therefore, when the control input unit 1 according to the present embodiment receives a predetermined operation input by the operation input reception unit 6, the control unit 1 performs a radio wave check by adopting a stricter criterion if a condition described later is satisfied, If the conditions are not met, use the looser criteria and conduct a manual test. That is, the operation input for the radio wave check and the operation input for the manual test are common, and the control unit 1 automatically determines and executes the appropriate one of the radio wave check and the manual test for the common operation input. Therefore, it is possible to easily and surely determine whether installation is possible.

  FIG. 2 is a flowchart for explaining the operation of the control unit 1. When the operation input unit 6 receives a predetermined operation input, the control unit 1 causes the wireless transmission / reception unit 2 to transmit a radio signal including a radio wave confirmation message. If the response message to the radio wave confirmation message is not received within a predetermined time, the control unit 1 determines that the radio wave check has failed. On the other hand, when the response message is received within a predetermined time, the control unit 1 determines whether a condition described later is satisfied. If the condition is not satisfied, the control unit 1 immediately determines that the radio wave check is successful. However, if the condition is satisfied, the control unit 1 compares the reception strength (RSSI value) of the radio signal including the response message with a threshold value. If the reception strength is less than the threshold value, it is determined that the radio wave check has failed.

  The condition may be, for example, that the time when the operation input is received by the operation input receiving unit 6 is within a predetermined time (tens of minutes to several hours) after the power is supplied to the control unit 1. . That is, since the radio wave check at the time of installation is normally performed within the predetermined time after power-on (battery installation), the control unit 1 selects the radio wave check according to the operation input within the predetermined time. It is preferable to carry out.

  Alternatively, the condition is that when the operation input is received by the operation input receiving unit 6, the operation input for transmitting the registration message (registration request message) or the operation input for switching to the registration mode is the operation input receiving unit 6. It may be within a predetermined time after being accepted at. That is, since the registration work is often performed at the same time as the radio wave check, it is preferable that the control unit 1 selects and executes the radio wave check according to the operation input within the predetermined time.

  By the way, the radio (fire alarm) TR of the present embodiment has a radio main body in which the control unit 1 and the like are housed, a radio main body is detachably attached to the surface, and a back surface is a construction surface (ceiling surface or And a mounting member fixed to the wall surface. That is, the mounting member is fixed to the ceiling surface or wall surface of the installation place by a method such as screwing, and the wireless device main body is mounted to the mounting member fixed to the construction surface. Further, the wireless device body is provided with attachment / detachment detection means for detecting that the wireless device body is attached to the attachment member. If the attachment / detachment detection unit does not detect that the wireless device main body is attached to the attachment member even after a predetermined time (for example, several hours) has elapsed since the power is turned on, the control unit 1 notifies the notification unit 5. To prompt the user to attach the wireless device main body to the attachment member. Note that the attachment / detachment detection unit is configured by, for example, a microswitch that is turned on when the wireless device main body is attached to the attachment member and turned off when the wireless device main body is detached from the attachment member.

  In the above configuration, the condition is that the time point when the operation input is received by the operation input receiving unit 6 is within a predetermined time after the attachment / detachment detecting unit detects that the radio device body is attached to the attachment member. It may be there.

  Here, when the condition (any of the above-described conditions) is satisfied and the operation input is first received by the operation input receiving unit 6 and until a predetermined time elapses, the operation is performed again. A case is assumed where the operation input is received by the input receiving unit 6. In this case, since it is considered that the first radio wave check has failed, it is preferable that the control unit 1 perform a radio wave check instead of a manual test until the predetermined time has elapsed. Alternatively, when the radio wave check fails, the control unit 1 preferably repeats the radio wave check automatically even if the operation input receiving unit 6 does not receive the operation input again.

  By the way, it is desirable to carry out a manual test every predetermined period (for example, 6 months to 1 year) even when there is no abnormality notification by regular monitoring, but the manual test is not always carried out as prescribed. Absent. If the manual test has not been performed for a long period of time, it is desirable to perform radio wave check with a stricter judgment criterion than the manual test, so that the time interval at which the operation input is accepted by the operation input accepting unit 6 is a predetermined upper limit. Exceeding a value (for example, one year) may be set as the condition.

  Further, the condition may be that the time when the operation input is received by the operation input receiving unit 6 is within a predetermined time from the notification of the periodic monitoring error. That is, when a periodic monitoring error is notified, it is highly likely that a manual test is performed. However, when the control unit 1 performs a radio wave check instead of a manual test, the risk that the periodic monitoring error will recur can be reduced.

  Alternatively, the condition may be that the time point at which the operation input is received by the operation input receiving unit 6 is within a predetermined time from the stop of notification of the periodic monitoring error.

  Here, it is considered that there is a high risk that communication with the wireless device TR in which the periodic monitoring error has occurred once becomes impossible. Therefore, it is preferable that the operation input is received by the operation input receiving unit 6 after the occurrence of the periodic monitoring error. Further, the condition may be that the radio wave check is not successful after the occurrence of the periodic monitoring error and before the operation input receiving unit 6 receives the operation input reaches a predetermined number. In other words, if the radio wave check is successful within a predetermined number of times after the occurrence of the regular monitoring error, a manual test is performed on the subsequent operation input instead of the radio wave check.

  By the way, in this embodiment, although the fire alarm for houses was illustrated as a radio | wireless machine, the radio | wireless machine which comprises the radio | wireless communications system which concerns on this invention is any of smoke sensing type, a heat sensing type, or a flame sensing type. It is not limited to fire alarms that employ a sensing method. For example, it may be a radio equipped with an air quality sensor that measures air quality such as humidity in the air, carbon dioxide, carbon monoxide, and the concentration of combustion gas (methane, propane, etc.). Alternatively, it may be a wireless device equipped with a human sensor that detects the presence of a person in the monitoring area. The human sensor may be an infrared sensor that measures infrared radiation emitted from the human body, an image analysis technique that detects a person by analyzing an image captured from a monitoring area, or an infrared sensor and an image processor. What is necessary is just to utilize the compound system etc. which use both systems.

  In addition, the wireless communication system is not necessarily composed of one type of wireless device, for example, a wireless device including a fire alarm, a wireless device including an air quality sensor, and a wireless device including a human sensor. Of these, two or three types of wireless devices may be used.

TR Fire alarm (radio)
1 Control unit (control means)
2 Radio transceiver (transmitting means, receiving means)
3 Antenna (transmitting means, receiving means)
4 Fire detector (detection means)
5 Notification part (notification means)
6 Operation input reception part (reception means)

Claims (12)

A transmitting unit that transmits a radio signal using radio waves as a medium; a receiving unit that receives the radio signal; a detecting unit that detects occurrence of a predetermined event; and a predetermined unit when the event is detected by the detecting unit A plurality of wireless devices including a control unit that transmits the wireless signal including the notification message from the transmission unit, a reception unit that receives an operation input, and a notification unit that performs notification using at least one of sound and light Consists of
The control means causes the transmission means to transmit the radio signal including a radio wave confirmation message when the reception means accepts an operation input for radio wave confirmation, and a response to the radio wave confirmation message transmitted from another radio device. If the message is received by the receiving unit, it is determined that the message is successful. On the other hand, if a predetermined condition is satisfied, the response message is received by the receiving unit and the reception strength of the radio signal including the response message is received. A wireless communication system, wherein when the value is equal to or greater than a predetermined threshold value, it is determined to be successful, and the notification means is notified of the determination result of success or failure.   2. The wireless communication system according to claim 1, wherein the condition is that the time when the operation input for checking the radio wave is received by the receiving unit is within a predetermined time after the power is supplied to the control unit.   The control unit of a specific radio unit among the plurality of radio units shifts to a registration mode when an operation input for switching to a registration mode for registration is received by the reception unit, and excludes the specific radio unit When the operation input for transmitting a registration message is received by the receiving unit, the control unit of another radio transmits a radio signal including a registration message with its own identification code as a transmission source address from the transmitting unit. The control unit of the specific radio device stores the transmission source address of the radio signal including the registration message when the registration unit receives the registration message, and the condition includes the reception unit The operation input for transmitting the registration message or the operation input for switching to the registration mode is performed when the radio wave confirmation operation input is received. Wireless communication system according to claim 1, wherein the after received by the serial reception means within a predetermined time.   The wireless device includes a wireless device main body in which the respective units are housed, an attachment member in which the wireless device main body is detachably attached to a front surface and a back surface is fixed to a construction surface, and the wireless device main body is attached to the wireless device. Attachment / detachment detection means for detecting attachment to a member, and the condition is that when the radio wave confirmation operation input is received by the reception means, the attachment / detachment detection means causes the wireless device body to be attached. The wireless communication system according to claim 1, wherein the wireless communication system is within a predetermined time after it is detected that the member is attached to the member.   During the period from when the radio wave confirmation operation input is first received by the reception unit until the predetermined time elapses when the condition is satisfied, the reception unit receives the radio wave confirmation operation input again. If accepted, the control means determines that the reception is successful when the reception means receives the response message and the reception strength of the radio signal including the response message is equal to or greater than a predetermined threshold value. The wireless communication system according to any one of claims 1 to 4.   If the control means determines that reception of the radio signal including the response message has failed, the control means again transmits the radio signal including the radio wave confirmation message from the transmission means, and the reception means transmits the response message. The wireless communication system according to claim 1, wherein the wireless communication system is determined to be successful when reception intensity of the wireless signal received and including the response message is equal to or greater than a predetermined threshold value. .   2. The wireless communication system according to claim 1, wherein the condition is that a time interval during which the reception unit receives an operation input for checking the radio wave exceeds a predetermined upper limit value.   The control unit of a specific radio unit among a plurality of the radio units periodically transmits a radio signal including a periodic monitoring message to all other radio units from the transmission unit, and the other radio units The control means of a machine transmits a radio signal including a response message from the transmission means when the periodic monitoring message is received, and the control means of the specific radio is one of the other radios If the response message of the wireless device is not received, the notification unit is notified of a periodic monitoring error, and the condition is that the time point when the operation input for the radio wave confirmation is received by the reception unit is the periodic monitoring. The wireless communication system according to claim 1, wherein the wireless communication system is within a predetermined time from notification of an error.   The control unit of a specific radio unit among a plurality of the radio units periodically transmits a radio signal including a periodic monitoring message to all other radio units from the transmission unit, and the other radio units The control means of a machine transmits a radio signal including a response message from the transmission means when the periodic monitoring message is received, and the control means of the specific radio is one of the other radios If the response message of the wireless device is not received, the notification unit notifies the periodic monitoring error, and the notification unit receives an operation input for stopping the notification of the periodic monitoring error by the reception unit. The periodic monitoring error notification is stopped, and the condition is that when the radio wave confirmation operation input is received by the receiving means, the periodic monitoring error notification is stopped. Wireless communication system according to claim 1, characterized in that within the constant time.   The control unit of a specific radio unit among a plurality of the radio units periodically transmits a radio signal including a periodic monitoring message to all other radio units from the transmission unit, and the other radio units The control means of a machine transmits a radio signal including a response message from the transmission means when the periodic monitoring message is received, and the control means of the specific radio is one of the other radios If the response message of the other wireless device is not received, the notification unit notifies the periodic monitoring error, and the control unit of the other wireless device receives the periodic monitoring message and then performs the periodic monitoring. If the periodic monitoring message is not received even if a period longer than the message transmission interval elapses, the notification means is notified of a periodic monitoring error, and the condition is the periodic monitoring The wireless device detects the error is, the periodic monitoring error wireless communication system according to claim 1, characterized in that in said receiving means after generating said is that the operation input wave confirmation is received of.   The control unit of a specific radio unit among a plurality of the radio units periodically transmits a radio signal including a periodic monitoring message to all other radio units from the transmission unit, and the other radio units The control means of a machine transmits a radio signal including a response message from the transmission means when the periodic monitoring message is received, and the control means of the specific radio is one of the other radios If the response message of the other wireless device is not received, the notification unit notifies the periodic monitoring error, and the control unit of the other wireless device receives the periodic monitoring message and then performs the periodic monitoring. If the periodic monitoring message is not received even if a period longer than the message transmission interval elapses, the notification means is notified of a periodic monitoring error, and the condition is the periodic monitoring 2. The method according to claim 1, wherein the number of times until the radio wave confirmation is successfully received after the occurrence of an error is received by the reception unit and the radio wave confirmation is successful is equal to or less than a predetermined number. Wireless communication system.   The wireless device comprising the detection means for detecting the occurrence of a fire as the event, the wireless device comprising the detection means for measuring air quality as the event, and the presence of a person in a monitoring area as the event The wireless communication system according to any one of claims 1 to 11, wherein at least any one type of the wireless device is included among the wireless devices including detection means.

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