JP5781792B2 - Alarm and monitoring system - Google Patents

Description

The present invention operates with a battery power source and outputs an alarm on its own when an abnormality such as a fire in its own monitoring area is detected and sends an alarm signal to the other alarm device to indicate the alarm. Type alarm and monitoring system.

  2. Description of the Related Art Conventionally, alarm devices that detect and warn of abnormalities such as fires and gas leaks in houses have become widespread. Of these, residential fire alarms are referred to as residential alarms.

  In such a house alarm, it operates with a battery power source, and is equipped with a sensor part for detecting a fire and an alarm part for alarming a fire in the house alarm, and when a fire is detected from a detection signal of the sensor part. The alarm unit outputs a fire alarm sound with a predetermined pattern, and it is easy to install and inexpensive because it can be used for fire monitoring and alarm notification without requiring a dedicated receiving facility. Yes, it has become widespread with the obligatory installation in ordinary houses.

  In addition, by communicating between multiple home alarms, when a fire alarm sound is output from any home alarm, an interlocked home police that outputs a fire alarm sound in conjunction with other home alarms. A vessel has also been proposed.

  In such an interlocking house alarm, when a fire is detected by the house alarm, the home alarm that detects the fire outputs, for example, “Woo Woo is a fire” and other house alarms. On the other hand, by receiving the interlock signal, other house alarms that are the target of interlocking output a fire alarm sound, for example, “Woo-Wood alarm has been activated”.

  Further, in recent years, as a result of efforts to reduce the power consumption of residential alarms, a long battery life of, for example, 10 years or more is guaranteed, and no battery replacement is necessary during that period. When battery life (remaining power capacity) decreases when battery life is approached after long-term use, a battery warning notice (hereinafter referred to as “low battery failure alarm”) is output to prompt battery replacement. I have to.

  After the start of the output of the low battery failure alarm (after the battery voltage drop is detected), it is only necessary that intermittent low battery failure alarm output is possible for a predetermined time, for example, 72 hours or more. There is no problem if the battery is replaced in time. In general, the low battery failure alarm is more urgent than the alarm that reports abnormalities in the monitoring area, such as a fire alarm, because it is designed to allow normal fire monitoring operation during this period. It is not a high alarm. In other words, a low battery failure may be dealt with within, for example, 72 hours, but an immediate response is naturally required for a fire.

Furthermore, the wireless interlocking house alarm employs a radio signal intermittent reception system in order to reduce power consumption. In the intermittent reception method, a predetermined receivable time is set for each predetermined period, the receiving unit is operated to perform carrier sense, and when a reception output is obtained by carrier sense, the reception operation is continued and the interlocking signal is received. .

JP 2007-094719 A Utility Model Registration No. 3143139

  However, in such a conventional interlocking type alarm device, when a fire is detected in a low battery failure state where the battery voltage is low, a fire alarm is output by an alarm sound and an alarm display by itself. Also performs transmission operation to transmit interlocking signals to other alarm devices, and simultaneously performs intermittent reception operation to receive interlocking signals from other housing alarm devices, and fire alarm output and transmission / reception operations are performed together As a result, the consumption of the battery is promoted, and there is a risk that the battery will run out during a fire alarm and may not function. For example, it may be impossible to continue the fire alarm (notification) as the interlocking source in the vicinity of the fire source, where the necessity of fire alarm output is the highest.

In the present invention, when abnormality is detected by the self in a state where the battery voltage is lowered, priority is given to maintaining the function of own abnormality monitoring and alarm output (notification output), and battery consumption related to other functions is suppressed as much as possible. An object is to provide an interlocking alarm device and a monitoring system.

The present invention operates with a battery power source and outputs an alarm indicating an interlocking source when an abnormality in the monitoring area is detected and transmits an interlocking signal indicating an abnormality in the monitoring area from another transmitter to the other alarm device. In the alarm device that outputs an alarm indicating the interlock destination when the interlock signal indicating abnormality of the monitoring area is received from the alarm device at the receiver,
The transmitter
When the battery voltage is above the specified level and an event other than the monitoring region abnormality or the monitoring region abnormality is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device. And
When the battery voltage is less than the predetermined level and other events are detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection contents is transmitted to another alarm device,
If the battery voltage is detected the abnormality of and monitoring area less than a predetermined level, the interlocking signal indicating the abnormal monitoring area by setting the second transmission mode have small in power consumption Ri by the first transmission mode to the other alarm devices to send,
The predetermined level is a threshold voltage for determining whether or not to output a battery warning notice .

Here, in the first transmission mode and the second transmission mode, a predetermined transmission operation combining a predetermined pause time and a predetermined transmission time is repeated a plurality of times , and the second transmission mode has a smaller number of transmissions than the first transmission mode. To do .

The receiver
Regardless of the battery voltage, when the monitoring area abnormality or other event is not detected, intermittent reception is performed with a predetermined receivable time set for each predetermined period,
When the battery voltage is above a predetermined level and an abnormality or other event in the monitoring area is detected, a predetermined first reception mode is set and an interlocking signal is received from another alarm device,
When the battery voltage is less than the predetermined level and another event is detected, a predetermined first reception mode is set and an interlocking signal is received from another alarm device,
When the battery voltage is less than a predetermined level and an abnormality in the monitoring area is detected, the second reception mode, which consumes less power than the first reception mode, is set and the interlock signal from another alarm is received or the reception is stopped. .

In the first reception mode, the intermittent reception is switched to the continuous reception while the detection state of the other event is continued, and the continuous reception is returned to the intermittent reception on condition that the detection state of the other event is canceled,
In the second reception mode, the intermittent reception is switched to the regular reception during the transmission of the interlocking signal indicating the abnormality of the monitoring area by the transmission unit , and thereafter the regular reception is returned to the intermittent reception.

In the first reception mode, the intermittent reception is switched to the continuous reception while the detection state of the other event is continued, and the continuous reception is returned to the intermittent reception on condition that the detection state of the other event is released.
In the second reception mode, intermittent reception is switched to continuous reception during transmission of the interlock signal indicating the abnormality of the monitoring area by the transmission unit , and intermittent reception with a period longer than a predetermined period is continued while the abnormality detection state of the subsequent monitoring area continues. The long period intermittent reception is returned to the predetermined period intermittent reception on condition that the abnormal detection state of the monitoring area is released.

In the first reception mode, the intermittent reception is switched to the continuous reception while the detection state of the other event is continued, and the continuous reception is returned to the intermittent reception on condition that the detection state of the other event is canceled,
In the second reception mode, intermittent transmission is switched to continuous reception during transmission of the interlock signal indicating the abnormality in the monitoring area by the transmission unit , and reception is shorter than the predetermined receivable time while the abnormality detection state in the subsequent monitoring area continues. Switching to intermittent reception of possible reception time is performed, and intermittent reception of short receivable time is returned to intermittent reception of a predetermined receivable time on condition that the abnormal detection state of the monitoring area is released.

When the receiver receives the interlock signal effectively from another alarm device, the transmitter transmits an ACK signal indicating normal reception,
After transmitting the interlock signal from the transmitter, the receiver effectively receives the ACK signal from the other resident alarm, and when it detects an alarm that does not receive the ACK signal, it interlocks with the other alarm device that received the ACK signal. The interlocking signal including the code indicating the relay request is transmitted in the signal, and the contents of the interlocking signal are relayed and transmitted.

In another embodiment of the present invention, when operating on a battery power source and detecting an abnormality in the monitoring area, an alarm indicating the interlocking source is output and an interlocking signal indicating the abnormality in the monitoring area is output to another alarm device. An alarm that transmits from the transmitter and outputs an alarm indicating the link destination when the receiver receives an interlock signal indicating an abnormality in the monitoring area from another alarm device, and further relays the interlock signal received from another alarm device In the vessel
The transmitter
When the battery voltage is above the specified level and an event other than the monitoring region abnormality or the monitoring region abnormality is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device. And
When the battery voltage is less than the predetermined level and other events are detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection contents is transmitted to another alarm device,
If the battery voltage is detected the abnormality of and monitoring area less than a predetermined level, the interlocking signal indicating the abnormal monitoring area by setting the second transmission mode have small in power consumption Ri by the first transmission mode to the other alarm devices to send,
The predetermined level is a threshold voltage for determining whether or not to output a battery warning notice .

In another embodiment of the present invention, when operating with a battery power source and detecting an abnormality in the monitoring area , an alarm indicating an interlocking source is output and an interlocking signal indicating an abnormality in the monitoring area is transmitted to another alarm device. Alarm that relays the interlocking signal received from another alarm device that outputs the alarm indicating the interlocking destination when the receiver receives the interlocking signal that indicates the abnormality of the monitoring area from other alarm devices. In the monitoring system provided with
The transmitter of the alarm device
When the battery voltage is above the specified level and an event other than the monitoring region abnormality or the monitoring region abnormality is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device. And
When the battery voltage is less than the predetermined level and other events are detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection contents is transmitted to another alarm device,
If the battery voltage is detected the abnormality of and monitoring area less than a predetermined level, the interlocking signal indicating the abnormal monitoring area by setting the second transmission mode have small in power consumption Ri by the first transmission mode to the other alarm devices to send,
The predetermined level is a threshold voltage for determining whether or not to output a battery warning notice .

  According to the alarm device of the present invention, when a predetermined event indicating an abnormality such as a fire is detected as an interlocking source in a low battery failure state in which the battery voltage is reduced, the interlocking signal is transmitted by detecting an event other than a fire. Since the interlock signal is transmitted after changing to the second transmit mode, which consumes less power than the first transmit mode, the consumption necessary to transmit the interlock signal to other alarm devices while the alarm device itself outputs an abnormal alarm such as a fire By reducing the power consumption and suppressing the consumption of the battery in the low battery failure state, it is possible to maintain the power applied to the alarm output function such as a fire.

  In addition, when a low battery failure state where the battery voltage is low and a predetermined event indicating an abnormality such as a fire is detected as a link source, the reception operation is also consumed from the first reception mode when an event other than a fire is detected. In order to receive the interlock signal from another alarm device by changing to the second reception mode with low power, in addition to reducing the power consumption by the second transmission mode, the power consumption necessary for receiving the interlock signal is reduced, By further suppressing the consumption of the battery in the battery fault state, it is possible to maintain the power applied to the alarm output function such as a fire.

  Here, when an abnormal alarm such as a fire is output as an interlock source in a low battery failure state, the transmission time of the interlock signal is substantially shortened by, for example, the second transmission mode for reducing power consumption. There is a possibility that the interlocking function with other alarm devices may be impaired.

  However, for example, when a linked system is configured with three or more alarm devices (as is the case with a general residential mortgage alarm system), there are multiple alarm devices that are linked destination candidates for one linked source. Even if the transmission time is shortened at the link source, the probability of being received by one of the two alarm devices is not so low as to be a big problem. When each alarm device at the interlock destination can execute the relay function of the interlock signal, if it is received by one unit, it is relayed and transmitted sequentially, and all other alarm devices can perform the interlock destination alarm.

  In addition, since the number of transmissions of linked signals from other alarm devices is further increased by relay transmission from other alarm devices, power consumption is reduced during the output of abnormal alarms such as fire as a source of synchronization. Therefore, even if intermittent reception is continued or the reception cycle is extended in the second reception mode, there is practically no problem.

In addition, while the alarm device itself is in the middle of outputting an abnormal alarm such as a fire, it is not necessary to process the interlock signal from other alarm devices, so the reception function is provided in the second reception mode to reduce power consumption. Even if it stops, it does not become a problem substantially.

Explanatory drawing which showed the example which installed the monitoring system by the interlocking type residence guard of this invention in the house Explanatory drawing which showed the external appearance of the house alarm device by this invention The block diagram which showed embodiment of the residence guard by this invention Time chart showing the transmission / reception control by the home alarm and the reception control by another home alarm when the battery voltage is normal and a fire and an event other than a fire are detected Time chart showing transmission / reception control by the home alarm of the present invention when a fire is detected in a low battery failure state Explanatory drawing which showed the format of the interlocking signal used in embodiment of FIG. Flow chart showing the transmission and reception control by the home alarm of the present invention The flowchart which showed the monitoring process by the residence guard of this invention

  FIG. 1 is an explanatory view showing an example of an installation state of a monitoring system using a house alarm of the present invention for a house. In the example of FIG. 1, a wireless system that detects and interlocks with a fire in each of the warning areas (monitoring areas) of the kitchen, living room, children's room, master bedroom, and staircase provided in the house 24. House alarms (fire alarms for houses) 10-1 to 10-6 are installed. Hereinafter, the housing alarm devices 10-1 to 10-6 are collectively referred to as the housing alarm device 10 without being distinguished from each other.

  The home alarm device 10 has a function of wirelessly transmitting and receiving interlocking signals to each other, and monitors whether or not a fire has occurred in each corresponding monitoring area of each house. If a fire has occurred in the kitchen of the house 24, the home alarm device 10-1 detects the fire and starts an alarm. Detecting this fire and initiating an alarm is referred to as “reporting” at the home alarm.

  When the home alarm device 10-1 issues a report, the home alarm device 10-1 functions as an interlocking source, and wirelessly transmits a fire interlocking signal to the other interlocking devices 10-2 to 10-6 serving as interlocking destinations. To do. When the other home alarm devices 10-2 to 10-6 have received the fire interlock signal from the home alarm device 10-1 as the interlock source, the other home alarm devices 10-2 to 10-6 perform the alarm operation as the interlock destination by the alarm sound and the alarm display.

  Here, when the group code included in the received interlocking signal matches the group code registered in the memory and the signal content is normally recognized, the resident alarm 10 confirms that the interlocking signal has been effectively received. I try to detect it. Further, the interlocking signal transmitted from the home alarm device 10 includes a source code using, for example, a serial number as identification information indicating the source home alarm device. Furthermore, the resident guard 10 that has effectively received the interlocking signal relays the interlocking signal as necessary.

  As an alarm operation of the home alarm device 10-1 that is the interlock source, for example, a fire alarm sound is output by a voice message such as “Please confirm that the Woo Woo fire alarm has been activated”. On the other hand, the interlocking house alarms 10-2 to 10-6 output a fire alarm sound by a voice message such as “Please confirm that another fire alarm has been activated”.

  Moreover, as an alarm display accompanying the fire alarm of the residence police device 10-1 which became the interlocking source, for example, an LED is lit. On the other hand, in the interlocking residence police 10-2 to 10-6, the LED blinks. As a result, the alarm display by the LED in the interlock source alarm and the interlock destination alarm can be distinguished.

  FIG. 2 is an explanatory view showing the appearance of a wireless smoke dwelling device according to the present invention. FIG. 2 (A) shows a front view and FIG. 2 (B) shows a side view. The side provided with the attachment hook 15 is the upper side.

  In FIG. 2, the housing of the residential alarm 10 according to the present embodiment includes a cover 12 and a main body 14. A protrusion is provided at the center of the cover 12, a plurality of smoke inlets are opened around the protrusion, and a smoke detector 16 is disposed in the inside thereof, so that smoke accompanying a fire passes through the inlet. The fire is detected when it reaches the specified concentration. As the smoke detector 16, a smoke detector mechanism such as a scattered light type smoke detector can be applied.

  An acoustic hole 18 is provided on the lower left side of the cover 12, and a buzzer and a speaker are incorporated behind this so that an alarm sound and a voice message can be output. An alarm stop switch 20 is provided below the cover 12.

  The alarm stop switch 20 is configured to press a built-in push switch (not shown) when a switch cover formed of a translucent member is pressed. An LED 22 for displaying an alarm or the like is disposed near the push switch inside the switch cover.

  Further, a mounting hook 15 having an insertion hole in the substantially central portion thereof is provided at the upper part on the back side of the main body 14, and a screw or the like is screwed into the wall of the room to be installed and hooked through the insertion hole of the mounting hook 15. The residential alarm 10 can be fixedly installed on the wall surface in a so-called wall-hanging manner.

  FIG. 3 is a block diagram showing the configuration of the main part of the residence guard 10-1 according to the present invention. This is an example, and the separation and integration of each function can be performed arbitrarily. Each part or all of each function may be executed by software (program) or may be executed by hardware. Moreover, in FIG. 3, although it has shown about the residence guard 10-1 installed in the kitchen, it becomes the same structure also about the other residence guards 10-2 to 10-6.

  The home guard 10-1 includes a processor 28 known as a one-chip CPU. For the processor 28, a wireless communication unit 30 including an antenna 31, a memory 32, a sensor unit 34, a notification unit 36, an operation unit 38, and A battery power source 40 is provided.

  The wireless communication unit 30 is provided with a transmission circuit 42 and a reception circuit 44 so that an interlocking signal can be transmitted and received wirelessly between the other residential alarm devices 10-2 to 10-6. As the wireless communication unit 30, in Japan, for example, STD-30 (wireless equipment standard of a low power security system wireless station) or STD-T67 known as a standard of a specific low power wireless station of 400 MHz band. It has a configuration that conforms to the standard for specific low-power radio station telemeters, telecontrol and data transmission radio equipment.

  Of course, when the wireless communication unit 30 is used outside Japan, the wireless communication unit 30 has contents compliant with the standard of the assigned wireless station in that region.

  Here, the antenna 31, the transmission circuit 42, and the transmission control unit 62 function as a transmission unit, and the antenna 31, the reception circuit 44, and the reception control unit 64 function as a reception unit.

In the memory 32, a serial number 48, which is a serial number indicating the generation order or transmission order of the interlocking signal, a transmission source code 50 using, for example, a serial number or the like serving as residential alarm identification information for identifying each residential alarm, The group code | symbol 52 for comprising the interlocking | linkage group which performs an interlocking | linkage alarm with each residence alarm device 10 installed in the house 24 like 1 is stored.

  The sensor unit 34 is provided with a smoke detection unit 16 that observes (detects) smoke according to the scattered light type smoke detection principle and outputs an observation (detection) signal corresponding to the smoke density.

The notification unit 36 is provided with a speaker 56 that is an acoustic output device that outputs an alarm sound and the like, and an LED 22 that displays an alarm. The speaker 56 is driven by a drive circuit (not shown) based on various data stored in the memory or the like by the control of the alarm processing unit 60 to be described later, so that a voice message, an alarm sound, etc. Is output. Similarly, the LED 22 driven by a display driving circuit (not shown) displays an abnormality such as a fire by blinking, blinking, or lighting.

  The operation unit 38 is provided with an alarm stop switch 20, and the alarm stop switch 20 also functions as an inspection switch for instructing self-inspection of the function of the home alarm device 10-1. For example, when the alarm stop switch 20 is operated while a fire alarm is being output by a user or the like, the fire alarm is stopped, and when the alarm stop switch 20 is operated in a normal state, a predetermined function check is performed and the result is notified. . Here, the normal state refers to a state where at least a fire alarm is being output or a failure alarm is not being output.

  The battery power source 40 uses, for example, a lithium battery or an alkaline battery having a predetermined number of cells, and has a battery capacity of, for example, 10 by reducing the power consumption of the entire circuit unit including the wireless communication unit 30 in the residential alarm 10-1. The battery life of the year is guaranteed.

  The processor 28 is provided with functions of an alarm processing unit 60, a transmission control unit 62, and a reception control unit 64 as functions realized by executing the program.

  The alarm processing unit 60 is provided with the presence or absence of a fire based on the detection signal output from the smoke detector 16 provided in the sensor unit 34, the presence or absence of an alarm stop instruction input by the operation of the operation unit 38, the presence or absence of an inspection instruction input, In addition to the presence or absence of a fire recovery that reduces the detection signal output from the smoke detector 16 provided to eliminate the fire detection state, the presence or absence of sensor failure or low battery failure via various monitoring circuits (not shown) as necessary Detect events such as. Further, the alarm processing unit 60 detects the presence / absence of the interlocking signal effective reception obtained as a result of decoding the interlocking signals from the other dwelling devices 10-2 to 10-6 and the interlocking contents via the receiving unit.

In addition, when the alarm processing unit 60 detects a fire based on the smoke detection signal of the smoke detecting unit 16 provided in the sensor unit 34, the alarm processing unit 60 issues an alarm sound indicating the interlock source from the speaker 56 to the notification unit 36, for example, “Woo Woo Fire. If the voice message “Please confirm” is repeatedly output, the LED 22 is turned on to perform an alarm display indicating the interlocking source, and the fire interlocking signal is transmitted via the transmission control unit 62 and the transmission circuit 42. Transmission is performed from the antenna 31 toward the other residential alarm devices 10-2 to 10-6.

  In addition, the alarm processing unit 60 has detected that the fire-linked signal has been effectively received from any of the other residential alarm devices 10-2 to 10-6 via the reception circuit 44 and the reception control unit 64 of the wireless communication unit 30. In this case, an alarm sound indicating the interlocking destination, for example, “Wow, please confirm that another fire alarm has been activated” is repeatedly output from the speaker 56 of the notification unit 36 and the LED 22 is blinked, for example. An alarm display showing is displayed.

  When the alarm processing unit 60 detects the operation of the alarm stop switch 20 during the output of the fire alarm sound indicating the interlocking source, the alarm processing unit 60 controls the notification unit 36 to fire the alarm by the voice message from the speaker 56 and the alarm display of the LED 22. The output of is stopped. In addition, when the effective reception of the alarm stop interlocking signal from any of the other residential alarm devices 10-2 to 10-6 is detected during the output of the fire alarm sound indicating the interlock source, the fire alarm is not stopped and interlocked Try to understand the origin.

  Further, the alarm processing unit 60 detects the operation of the alarm stop switch 20 or the effective reception of the alarm stop interlocking signal from any of the other residential alarm devices 10-2 to 10-6 during the output of the alarm sound indicating the interlock destination. When it does, the alerting | reporting part 36 is controlled and the output of the fire alarm by the voice message from the speaker 56 and the alarm display of LED22 is stopped.

  In addition, the alarm processing unit 60 is provided with a low battery failure monitoring function in which the power supply voltage of the battery power supply 40 is less than a predetermined level, and is automatically executed regularly in the background as a built-in test.

  Specifically, the low battery fault monitoring is a built-in that reads a battery voltage supplied from the battery power supply 40 at a predetermined measurement time interval, for example, a 4-hour interval via a voltage monitoring circuit (not shown), and compares it with a predetermined threshold voltage. When a test is performed, a low battery failure is preliminarily determined when the threshold voltage is less than this threshold voltage, and when the low battery failure preliminary determination continues for a predetermined number of times, the low battery failure is determined (determined) and detected. The battery failure flag is set and updated and stored in the memory 32.

  The alarm processing unit 60 is provided with a sensor failure monitoring function for monitoring a failure of the sensor unit 34, and is automatically executed in the background as a built-in test. Specifically, the sensor failure monitoring reads a smoke detection signal output from the smoke detector 16 of the sensor unit 34 at a predetermined measurement time interval, for example, 1 second, and holds it in the memory 32. For example, every 10 minutes, the average value of the detected data for the last 10 minutes held in the memory 32 is obtained, and when this average value falls below a predetermined reference level (referred to as the zero point level), the output is stopped. For example, it is determined that the sensor unit 34 has failed, and a sensor failure flag is set and stored in the memory 32.

  When the alarm processing unit 60 detects an inspection instruction operation (inspection instruction input) by operating the alarm stop switch 20 that functions as an inspection switch in a normal state, the low battery failure flag or the sensor failure flag is set and stored in the memory 32. When it is determined and detected that the low battery failure alarm or the sensor failure alarm is output from the notification unit 36, the low battery failure interlocking signal or the sensor failure interlocking signal is output to the other residential alarm devices 10-2 to 10-10. Transmit to -6 to output a low battery fault alarm or sensor fault alarm indicating the fault linkage destination.

  The transmission controller 62 detects a fire based on a detection signal from the smoke detector 16 by the alarm processor 60, an alarm stop input or inspection instruction input by the operation unit 38, and a detection signal output from the smoke detector 16 decreases and fires. When a self-event such as a low battery failure or a sensor failure is detected such as a fire recovery in which the detection state is eliminated, an interlock signal indicating the detected event content is transmitted via the transmission circuit 42 and the antenna 31 of the wireless communication unit 30. And send it to the linked home alarm. Further, the transmission control unit 62 relays and transmits the interlocking signal that is effectively received from the other home guards as necessary.

  Also, the transmission control unit 62 sets each event when the alarm processing unit 60 detects a fire or an event other than a fire when the power supply voltage supplied from the battery power supply 40 is equal to or higher than a predetermined level (low battery failure is not detected). The interlocking signal shown is set to a predetermined first transmission mode and transmitted to the other home alarm device.

  In the first transmission mode, as shown in FIG. 4A, when a fire or an event other than a fire is detected at time t1, as shown in FIG. 4B, a predetermined time T1, for example, T1 = 3 seconds. The transmission operation 70 for transmitting the interlocking signal is repeated four times, for example, with a predetermined time T2, for example, a pause time of T2 = 2 seconds. This T1 = 3-second transmission and T = 2-second pause comply with the standard of a specific low-power radio station.

  The transmission operation 70 for T1 = 3 seconds is a dummy signal transmission operation 72 for 2.8 seconds from the beginning of the transmission operation 70, and the interlocking signal repeated transmission operation 74 is performed for the remaining 0.2 seconds. Yes. The dummy signal is detected by a carrier sense of intermittent reception to start a reception operation, and the subsequent interlocking signal can be received.

  The reception control unit 64 receives and decodes the interlocking signals from the other mortgages 10-2 to 10-6 via the antenna 31 and the reception circuit 44 of the wireless communication unit 30. In addition, the reception control unit 64 receives the interlock signal from the other home alarm device by intermittent reception when the power supply voltage supplied from the battery power supply 40 in the alarm processing unit 60 is equal to or higher than a predetermined level (low battery failure is not detected). When a fire or an event other than a fire is detected, a predetermined first reception mode is set and an interlocking signal is received from another house alarm.

  In the intermittent reception, as shown before the occurrence of the event at time t1 in FIG. 4C, the reception operation is repeated for every period T3 during the receivable time T5. For example, the period T3 = 7 seconds and the receivable time T6 = 100. Milliseconds. When the transmission dummy signal is detected by carrier sense during the receivable time T5, the reception signal is switched to the constant reception for a predetermined time and the interlocking signal following the dummy signal is received.

  Here, FIG. 4 (C) switches from intermittent reception to constant reception operation 80 at time t1, and the constant reception operation 80 is a response (ACK) from the fire alarm signal transmission of FIG. 4 (B) (ACK). ) Indicates a signal receiving operation. When the predetermined time elapses or the reception analysis of the interlocking signal is completed, the normal reception operation 80 is canceled, and the reception operation before t1 is restored.

  At this time, in response to the transmission of the interlocking signal by the transmission operation 70 in FIG. 4B, as shown in FIG. The reception of the dummy signal is detected at the receivable time T5, and the intermittent reception until then is switched to the continuous reception operation 84, and the repetitive reception of the interlocking signal is performed corresponding to the repetitive transmission operation 74 of the interlocking signal of FIG. Operation 74a is performed. When the predetermined time elapses or the reception analysis of the interlocking signal is completed, the normal reception operation 84 is canceled and the reception operation before t1 is restored.

  When a fire or an event other than a fire is detected at time t1 in FIG. 4A, the reception control unit 64 sets the first reception mode shown after t1 in FIG. The intermittent reception is switched to the continuous reception operation 80 so that the interlocking signal from another house alarm can be received quickly. The continuous reception operation 80 continues during the event occurrence, and returns to the intermittent reception before the event detection when the event occurrence ends.

  Here, since the constant reception operation 80 has the same transmission and reception channel frequencies, the transmission signal T of the transmission operation 70 performed at the same time cannot receive an interlocking signal from another resident alarm, The portion corresponding to the pause time T2 and the portion after the end of transmission are used as an effective reception operation 82.

  Further, the alarm processing unit 60 receives an acknowledgment signal (hereinafter referred to as “ACK signal”) indicating that the interlocking signal has been normally received from the other residential alarm devices 10-2 to 10-6 via the reception control unit 64. It is monitored whether it is received effectively.

  When it detects that no other ACK signal is received (cannot confirm the reply of ACK signal) among other house alarms, there is a relay request from other house alarms for which ACK signal has been confirmed to be received by transmission control unit 62 A link signal (referred to as a link signal with a relay request) is transmitted, and a link signal with a relay request is received from an ACK response-confirmed home alarm device that has not yet responded to an AKC signal. Is relayed. The AK that has not received an AKC signal that has received the interlocked signal relayed here performs an alarm process or the like based on this reception and returns an ACK signal. It is received by the interlocking home security device 10-1.

  In addition, the transmission control unit 62 and the reception control unit 64 may detect a non-fire event in a state where the power supply voltage supplied from the battery power supply 40 is reduced, that is, in a state where the low battery failure is detected. For example, the same transmission / reception operations in the first transmission mode and the first reception mode as shown in FIGS.

  Further, the transmission control unit 62 and the reception control unit 64 have a second power consumption lower than that in the first transmission mode and the first reception mode, respectively, when a fire is detected in a low battery voltage state where a low battery failure is detected. Performs transmission / reception operations in the transmission mode and the second reception mode, reduces power consumption necessary for transmission / reception of interlocking signals, and suppresses battery consumption in a low battery state, thereby outputting alarms regarding abnormalities in monitoring areas such as fire. Maintain power for functions.

  FIG. 5 is a time chart showing transmission / reception operations in the second transmission mode and the second reception mode when a fire is detected in a low battery failure state. Since the receiving operation at the other home alarm is the same as FIG. 4D, it is omitted.

  In the second transmission mode, as shown in FIG. 5 (A), if a fire is detected at time t1, a transmission operation 70 for transmitting an interlocking signal for T1 = 3 seconds as shown in FIG. 5 (B). Is repeated twice, for example, with a pause of T2 = 2 seconds, and the power consumption is reduced by making the number less than the number of repetitions of the four transmission operation bands 70 in the first transmission mode of FIG. .

  Here, in order to reduce power consumption in the low battery state, the transmission function of the fire interlocking signal is substantially shortened by the second transmission mode (power saving transmission mode), so that the interlocking function with other alarm devices is impaired. There is a possibility.

  However, as shown in FIG. 1, for example, when the interlocking system is configured with six housing alarm devices 10-1 to 10-6, there are five alarm devices that are interlocking destination candidates for one interlocking source. Therefore, even if the transmission time is shortened by the interlocking source residence guard 10-1, the probability of being received by any of the remaining five residence guards 10-2 to 10-6 does not become extremely low.

  In addition, when the ACK signal is not effectively received from any of the interlocking home police 10-2 to 10-6, a fire interlocking signal with a relay request is transmitted and relayed, and at least one of them is relayed. If it is received at the relay station, it will be relayed in sequence, so that all of the other home alarm devices 10-2 to 10-6 can issue a linked fire alarm.

  For example, in the second transmission mode, the transmission radio wave intensity may be reduced as compared with the first transmission mode, or the transmission time may be shortened and the transmission intensity may be reduced as described above. When the transmission intensity is reduced, among the resident guards 10-2 to 10-6, there may be cases where the interlock signal does not reach due to the radio wave intensity, for example, because it is located far from the resident guard 10-1. However, even in this case, if the interlock signal is delivered to any of the residence guards, the interlock signal relayed from the residence guard that has received it will also reach the remote residence guard. A fire alarm can be performed in any of 10-6.

  The second reception mode (power-saving reception mode) is, for example, one of the three second reception modes shown in FIGS.

  In the second reception mode of FIG. 5C, the constant reception operation 80 is performed over a predetermined period corresponding to the transmission in the second transmission mode in which the transmission time T1 and the pause time T2 of FIG. 5B are repeated twice. After that, intermittent reception similar to that before t1 is restored, and the power consumption can be reduced compared to the case where the constant reception operation 80 is performed in the first reception mode of FIG.

  Since the always receiving operation 80 has the same transmission and reception channel frequencies, the interlocking signal cannot be received from other mortgages for the transmission time T1 of the simultaneous transmission operation 70, and the pause time T2. The portion corresponding to 及 び and the portion after the end of transmission are used as an effective reception operation 82.

  In the second reception mode of FIG. 5 (D), intermittent reception with lower power consumption than that before t1 is set after the constant reception operation 80 as in the second transmission mode of FIG. 5 (A) is set. In this intermittent reception, the intermittent reception cycle T3 up to time t1 is set to intermittent reception of a longer cycle T4, and further, the receivable time T6 for each reception cycle T4 is based on the intermittent reception operable time T5 up to time t1. It can be shortened to reduce power consumption. It should be noted that the intermittent reception cycle may be increased and the receivable time may be decreased in addition to both.

  In the second reception mode in FIG. 5E, the reception is stopped 90 from the intermittent reception from the time t1 when the fire is detected until the time t1, and is greatly consumed compared to the constant reception operation 80 in the first reception mode in FIG. Electric power can be reduced.

  When the second reception mode is set in order to reduce the power consumption in this way, the interlocking signals from the other home alarm devices 10-2 to 10-6 are further relayed from other home alarm devices. Therefore, even if the continuous reception operation is shortened, the reception cycle of intermittent reception is increased, or the receivable time is shortened by setting the second reception mode, there is substantially no problem.

  In addition, when the reception is stopped, it becomes impossible to receive the interlock signal from the other residence guards 10-2 to 10-6. However, while the residence guard 10-1 itself is outputting the malfunction alarm such as a fire, etc. Since it is less necessary to process the interlocking signals from the alarm devices 10-2 to 10-6, there is virtually no problem even if the reception function is stopped.

  When a fire is detected in a low battery failure state, low power consumption transmission / reception is performed by combining the second transmission mode in FIG. 5 (B) and the second reception mode in any one of FIGS. 5 (C) to (E). However, for the reception mode, the first reception mode shown in FIG. 4C may be combined, and transmission may be performed with low power consumption only.

  5C and 5D, when the transmission operation 70 is completed at time t2, the continuous reception operation 80 is returned to intermittent reception before event detection or intermittent reception with low power consumption is set. However, in order to receive an ACK signal or the like for the interlocking signal that was last transmitted to the other mortgage by the transmission operation 70, the transmission operation 70 ends and a predetermined delay time from the hand, for example, a pause time T2 After the same delay time of 2 seconds elapses, the continuous reception operation 80 may be returned to intermittent reception before event detection, or intermittent reception with low power consumption may be set.

In addition to the above, as the second reception mode, the reception operation corresponding to the constant reception operation 80 in FIG. 5 is also set to an appropriate intermittent operation, during the repetition period of the transmission operation 70, during the fire detection state, or as appropriate. The reception operation may be stopped over a period in which the delay time is added.

  In addition, when a fire is detected and a fire recovery or alarm stop is detected as an event other than a fire while a fire has been detected and transmission / reception has been performed in the second transmission mode and the second reception mode, a fire is detected in the first transmission mode. Sends a recovery interlock signal and an alarm stop interlock signal and switches to the continuous reception operation in the first reception mode, receives an ACK signal from another resident alarm for the fire recovery interlock signal and the alarm stop interlock signal, and receives an ACK signal If an error is confirmed, or if an appropriate delay time has passed after confirming the ACK signal, if necessary, the intermittent reception before the fire detection is restored.

  In other words, when the fire recovers, it does not immediately return to intermittent reception before the fire detection, but during that time, the transmission of the fire recovery interlock signal and alarm stop interlock signal in the first transmission mode and the first reception mode and the ACK signal After receiving, it returns to intermittent reception before fire detection. That is, for example, event detection state cancellation such as fire restoration is an event other than a fire.

  FIG. 6 is an explanatory diagram schematically showing the format of the interlocking signal used for the interlocking alarm in this embodiment. In FIG. 6, the interlock signal 46 includes a serial number 48, a transmission source code 50, a group code 52, and an event code 54. It should be noted that both the link source transmission source code and its own transmission source code as the relay transmission source are added to the link transmission signal for relay transmission. If necessary, a code indicating that there is a relay request is added separately.

Here, the event code 54 is a code representing event content (interlocking operation content) such as a fire. In the present embodiment, a 4-bit code is used. For example, 0001 = fire 0010 = ACK
0011 = Alarm stop 0100 = Recovery 0101 = Sensor failure 0110 = Low battery failure.

  FIG. 7 is a flowchart showing a schematic example of transmission / reception control in the house alarm of the present invention. In FIG. 7, the transmission / reception control detects whether or not there is a low battery failure in step S1, and if no low battery failure is detected when the battery voltage exceeds a predetermined level (or if there is no low battery failure), the step is performed. Proceed to S2, set the first transmission mode shown in FIG. 4B and the first reception mode shown in FIG. 4C, and set the first transmission mode when a fire or an event other than a fire is detected The interlocking signal is transmitted to the other house alarms according to the above, and at the same time, the interlocking signal is received from the other house alarms according to the setting of the first reception mode.

  On the other hand, if a low battery failure is detected in step S1, the process proceeds to step S3 to determine whether or not a fire is detected. If an event other than a fire (abnormality in the monitoring area) is detected in step S3, the process proceeds to step S4, the first transmission mode shown in FIG. 4 (A) is set, and an interlocking signal is transmitted to other dwelling devices. At the same time, the first reception mode shown in FIG. 4 (C) is set, and the interlocking signal is received from the other residential alarm devices.

  If a fire is detected in step S3, the process proceeds to step S5, the second transmission mode shown in FIG. 5 (B) is set, and an interlocking signal is transmitted to the other home alarm device. ) To (E), the second reception mode shown in any one of the above is set and the interlocking signal is received from the other mortgage, and the first transmission mode and the first reception mode set in step S4 Transmission / reception with reduced power consumption is performed, and by suppressing the consumption of the battery in the low battery state, it is possible to maintain the power applied to the output function of the fire alarm as the interlocking source.

  FIG. 8 is a flowchart showing a schematic example of the monitoring process of the house alarm according to the present invention. In FIG. 8, when the power supply by the battery power source 40 of the mortgage alarm device 10 is started, various settings including initialization, self-diagnosis, and transmission / reception mode setting are executed in step S11. Proceeding to S12, it is determined whether or not a fire is detected. If there is an initialization abnormality in step S11, the fact is notified and the operation is stopped halfway, or the process of step S11 is performed again, but the illustration is omitted.

In step S12, a fire is detected signal output smoke detection output from the smoke detector section 16 provided in the sensor section 34 exceeds a predetermined fire level alarm processing unit 64 proceeds to step S13, other fire interlock signal A fire alarm indicating a link source is output from the speaker 56 of the notification unit 36 by an alarm sound by a voice message or the like and an alarm display by turning on the LED 22, for example.

  At this time, when the low battery failure is not detected, the transmission of the fire interlocking signal in the first reception mode and the constant reception in the first reception mode are performed. When a low battery failure is detected, transmission / reception with low power consumption is performed by setting the second transmission mode and the second reception mode.

  Subsequently, in step S14, it is determined whether or not there is a fire recovery detection in which the smoke detection signal from the smoke detector 16 is lowered and the fire detection state is resolved. When the fire recovery detection is determined, a fire recovery interlock signal is output in step S15. After transmitting to another house alarm, the fire alarm indicating the interlocking source by the alarm sound from the speaker 56 and the lighting of the LED 22 is stopped. The alarm display by the LED 22 may be turned off after a predetermined time has elapsed since the alarm sound stopped.

  In this case, the fire recovery interlock signal is transmitted because the fire alarm is stopped and the power consumption is reduced, so the first transmission mode corresponding to an event other than a fire is set. Is received in the first reception mode.

  Subsequently, in step S16, the presence or absence of an alarm stop instruction operation of the alarm stop switch 20 is detected, and when switch operation detection is determined, the process proceeds to step S17 to transmit an alarm stop interlocking signal to another house alarm device and from the speaker 56. The alarm sound output indicating the link source is stopped, and the alarm display by turning on the LED 22 is turned off. The alarm display by the LED 22 may be turned off after a predetermined time has elapsed since the alarm sound stopped.

  The reception mode in the case of transmitting the recovery interlock signal and the alarm stop interlock signal in steps S15 and S17 ends the second reception mode when the fire recovery or alarm stop is detected during the fire continuation, and the first reception mode. However, when the reception mode is switched from the second reception mode to the first reception mode, an ACK signal or the like is received, and when reception of the ACK signal is confirmed, and if necessary, an additional delay after confirming the ACK signal. When time passes, return to intermittent reception before fire detection.

  When the recovery interlock signal transmission and the alarm stop interlock signal are transmitted in steps S15 and S17, the reception mode ends the second reception mode when the fire recovery or alarm stop is detected while the fire detection is continued, and the first reception mode However, when the reception mode is switched from the second reception mode to the first reception mode, an ACK signal or the like is received, and when the reception of the ACK signal is confirmed, and if necessary after the ACK signal confirmation, further appropriate When the delay time has passed, return to intermittent reception before fire detection.

  Then, it progresses to step S18, and the presence or absence of the fire interlocking | linkage signal effective reception transmitted or relay-transmitted from the other residence police is detected. When the effective reception of the fire interlocking signal from another house alarm is detected, the process proceeds to step S19 to output an alarm sound from the speaker 56 as a fire alarm indicating the interlocking destination, for example, an alarm display by blinking of the LED22.

  Next, in step S20, the presence / absence of the effective reception of the fire recovery interlock signal transmitted or relayed from another resident alarm is detected. When the effective reception of the fire recovery interlock signal is detected, the process proceeds to step S21 and the interlock destination The alarm display by the alarm sound output from the speaker 56 and the blinking of the LED 22 is stopped as an alarm.

  Next, in step S22, the presence or absence of an alarm stop interlocking signal effective reception transmitted or relayed from another house alarm is detected. When the alarm stop interlocking signal effective reception is detected, the process proceeds to step S23 as the interlocking destination. The alarm sound output is stopped and the alarm display is also stopped.

  Here, in the flowchart of FIG. 8, processing when an event signal indicating a low battery failure or a sensor failure is received from another residential alarm is omitted, but a low battery failure or a sensor failure is received from another residential alarm. When the effective reception of the event signal indicating is detected, a low battery failure alarm or a sensor failure alarm indicating the linkage destination is performed with an alarm sound and an alarm display.

  Further, in the flowchart of FIG. 8, when a interlocking signal is received from another mortgage in step S18, step S20, or step 22, if a relay request code is included in the interlocking signal, relay transmission is performed as necessary. Although the process accompanying it is performed, illustration is abbreviate | omitted for simplicity of description.

  In addition, although illustration is omitted, for example, the occurrence of a failure such as a low battery or a failure and other events other than the illustration are also monitored as appropriate. Is transmitted, and a corresponding interlocking signal is transmitted to another resident alarm. In addition, when an interlocking signal indicating these events is received from another resident alarm, corresponding processing such as notification as an interlocking destination is performed, and relaying transmission of the interlocking signal is performed as necessary.

  Note that a method of reducing power consumption as the transmission mode and the reception mode is not limited to the above-described embodiment, and an appropriate method can be adopted. Further, for example, the operation exemplified above as the second transmission mode can be set as the first transmission mode, and the transmission operation with lower power consumption can be set as the second transmission mode, and the same applies to the reception mode.

  That is, the operations of the first transmission mode, the second transmission mode, the first reception mode, and the second reception mode of the present invention are not limited to the above-described examples, and can solve some or all of the problems of the present invention. In the first transmission mode, the second transmission mode and the second reception mode with respect to the first reception mode may be operated with relatively low power consumption.

  Further, the relay transmission of the interlocking signal by the alarm device described above can be performed by other appropriate means and methods. In the present invention, any alarm device can perform transmission operation in the second transmission mode. Means capable of compensating for a decrease in the probability that the interlocking signal transmitted from the alarm device (interlocking source) is received by other alarm devices when the receiving operation in the second reception mode is performed, and Any method is acceptable.

  In addition, the above embodiment is an example of a residential alarm device that detects and alerts a fire. However, a fire alarm device other than a residential alarm device, a gas leak alarm device, a CO alarm device, and various security alarm devices The present invention can be similarly applied to an alarm system in which the various alarm devices are arranged in combination.

  In addition, the residential alarm device 10-1 of FIG. 3 is provided with a smoke detection unit 16 that observes smoke generated by a fire and detects a fire as an abnormality in the monitoring area. However, in addition to this, a thermal dweller equipped with a temperature detection element such as a thermistor that detects heat associated with a fire, a dweller that detects other environmental changes associated with a fire, and gas leaks other than a fire are detected. An alarm device that detects an intruder, an earthquake, and other abnormalities, and an alarm device that combines these alarm devices are also included in the scope of the present invention.

  Further, the cooperation of the alarm devices may not be based on wireless communication, may be wired communication, or may be a combination of wired and wireless as appropriate.

  Further, the operation means shown as the alarm stop switch 20 in the above embodiment does not necessarily need to be a switch, and any operation means such as an instruction for alarm history output by external communication using a remote control device or the like. Means and methods may be applied.

  In addition, the flowchart of the control process in the above embodiment describes a schematic example of the process, and the order of the process is not limited to this. In addition, other processes can be added or inserted as necessary.

  Moreover, the processor of the house alarm shown in the said embodiment can replace the one part or all part of the function with the other means by a wired logic etc., for example. Other electrical and functional configurations including the processor can be appropriately integrated and abolished.

  Further, the above-described embodiment is applicable not only to residential use but also to various types of alarm devices such as buildings and offices.

The present invention is not limited to the above-described embodiments, includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above-described embodiments.

10, 10-1 to 10-6: House alarm 12: Cover 14: Main body 15: Mounting hook 16: Smoke detector 18: Sound hole 20: Alarm stop switch 22: LED
24: house 28: processor 31: antenna 30: wireless communication unit 32: memory 34: sensor unit 36: notification unit 38: operation unit 40: battery power source 42: transmission circuit 44: reception circuit 46: interlocking signal 48: serial number 50 : Transmission source code 52: Group code 54: Event code 56: Speaker 60: Alarm processing unit 62: Transmission control unit 64: Reception control unit

Claims (9)

Operates with battery power, outputs an alarm indicating the interlocking source when an abnormality in the monitoring area is detected, and transmits an interlocking signal indicating the abnormality in the monitoring area to the other alarm devices from the transmitter, from other alarm devices In the alarm device that outputs an alarm indicating the interlocking destination when the interlocking signal indicating abnormality of the monitoring area is received by the receiving unit,
The transmitter is
When the battery voltage is equal to or higher than a predetermined level and an event other than the monitoring region abnormality or the monitoring region abnormality is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detected content is displayed on another alarm device. Send
When the battery voltage is less than the predetermined level and the other event is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device,
When the battery voltage is less than the predetermined level and an abnormality in the monitoring area is detected, a second transmission mode with lower power consumption than the first transmission mode is set to indicate an abnormality in the monitoring area to other alarm devices. Send the interlock signal,
The alarm device according to claim 1, wherein the predetermined level is a threshold voltage for determining whether or not to output a battery exhaustion warning.
2. The alarm device according to claim 1 , wherein in the first transmission mode and the second transmission mode, a predetermined transmission operation in which a predetermined pause time and a predetermined transmission time are combined is repeated a plurality of times, and the second transmission mode is set. The alarm is characterized in that the number of transmissions is less than in the first transmission mode.
The alarm device according to claim 1 , wherein
The receiver is
Regardless of the battery voltage, if the abnormality in the monitoring area or the other event is not detected, intermittent reception is performed by setting a predetermined receivable time every predetermined period,
When the battery voltage is equal to or higher than a predetermined level and an abnormality of the monitoring area or the other event is detected, a predetermined first reception mode is set and an interlocking signal is received from another alarm device,
When the battery voltage is less than the predetermined level and the other event is detected, a predetermined first reception mode is set and an interlocking signal is received from another alarm device,
When the battery voltage is less than the predetermined level and an abnormality in the monitoring area is detected, a second reception mode with lower power consumption than the first reception mode is set and an interlocking signal is received from another alarm device or Stop receiving,
An alarm device characterized by that.
In the alarm device according to claim 3 ,
In the first reception mode, the intermittent reception is switched to the continuous reception while the detection state of the other event is continued, and the continuous reception is changed to the intermittent reception on condition that the detection state of the other event is canceled. Return,
In the second reception mode, the intermittent reception is switched to the regular reception during the transmission of the interlocking signal indicating the abnormality of the monitoring area by the transmission unit, and then the regular reception is returned to the intermittent reception.
An alarm device characterized by that.
In the alarm device according to claim 3 ,
In the first reception mode, the intermittent reception is switched to the continuous reception while the detection state of the other event is continued, and the continuous reception is changed to the intermittent reception on condition that the detection state of the other event is canceled. Return,
In the second reception mode, the intermittent reception is switched to continuous reception during transmission of the interlock signal indicating the abnormality of the monitoring area by the transmission unit, and the predetermined period is continued while the abnormality detection state of the monitoring area thereafter is continued. Switching to intermittent reception with a longer cycle, and returning the intermittent reception with the long cycle to the intermittent reception with the predetermined cycle on condition that the abnormal detection state of the monitoring area has been canceled,
An alarm device characterized by that.
In the alarm device according to claim 3 ,
In the first reception mode, the intermittent reception is switched to the continuous reception while the detection state of the other event is continued, and the continuous reception is changed to the intermittent reception on condition that the detection state of the other event is canceled. Return,
In the second reception mode, the intermittent reception is switched to the constant reception during the transmission of the interlocking signal indicating the abnormality of the monitoring area by the transmission unit, and the predetermined detection state is continued while the abnormality detection state of the monitoring area thereafter is continued. Switch to intermittent reception with a receivable time shorter than the receivable time, and return the intermittent reception with the short receivable time to the intermittent reception with the predetermined receivable time on condition that the abnormal detection state of the monitoring area is released ,
An alarm device characterized by that.
The alarm device according to claim 1 , wherein
When the reception signal is effectively received from another alarm device in the reception unit, the transmission unit transmits an ACK signal indicating normal reception,
After receiving the interlock signal from the transmitter, the receiving unit effectively receives the ACK signal from the other resident alarm, and when detecting the alarm that does not receive the ACK signal, the other alarm device that has received the ACK signal The alarm signal is characterized in that the interlock signal including a code indicating a relay request is transmitted to the interlock signal to relay the contents of the interlock signal.
Operates with battery power, outputs an alarm indicating the interlocking source when an abnormality in the monitoring area is detected, and transmits an interlocking signal indicating the abnormality in the monitoring area to the other alarm devices from the transmitter, from other alarm devices In the alarm device that outputs the alarm indicating the interlock destination when the interlock signal indicating abnormality of the monitoring area is received by the receiving unit, and further relays the interlock signal received from another alarm device,
The transmitter is
When the battery voltage is equal to or higher than a predetermined level and an event other than the monitoring region abnormality or the monitoring region abnormality is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detected content is displayed on another alarm device. Send
When the battery voltage is less than the predetermined level and the other event is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device,
When the battery voltage is less than the predetermined level and an abnormality in the monitoring area is detected, a second transmission mode with lower power consumption than the first transmission mode is set to indicate an abnormality in the monitoring area to other alarm devices. Send the interlock signal,
The alarm device according to claim 1, wherein the predetermined level is a threshold voltage for determining whether or not to output a battery exhaustion warning.
Operates with battery power, outputs an alarm indicating the interlocking source when an abnormality in the monitoring area is detected, and transmits an interlocking signal indicating the abnormality in the monitoring area to the other alarm devices from the transmitter, from other alarm devices In the monitoring system provided with an alarm that relays the interlocking signal received from another alarm device, outputting an alarm indicating the interlocking destination when the interlocking signal indicating abnormality of the monitoring area is received by the receiving unit,
The transmitter of the alarm device
When the battery voltage is equal to or higher than a predetermined level and an event other than the monitoring region abnormality or the monitoring region abnormality is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detected content is displayed on another alarm device. Send
When the battery voltage is less than the predetermined level and the other event is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device,
When the battery voltage is less than the predetermined level and an abnormality in the monitoring area is detected, a second transmission mode with lower power consumption than the first transmission mode is set to indicate an abnormality in the monitoring area to other alarm devices. Send the interlock signal,
The monitoring system according to claim 1, wherein the predetermined level is a threshold voltage for determining whether or not to output a battery warning notice.

Images