JP5893835B2 - 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.

  The reduction in power consumption of the home alarm device is realized by lowering the power consumption of various circuits provided in the home alarm device, and in particular by adopting an intermittent radio signal reception system. The intermittent reception method sets a predetermined receivable time for each predetermined period, operates the receiving unit to perform carrier sense, and continues the reception operation when the reception output is obtained by carrier sense, and other resident alarm Receive interlocking signal from.

  If the battery voltage (remaining power supply capacity) is reduced due to the use of the home alarm for a long time and the battery voltage (remaining power capacity) is reduced, a battery warning warning (hereinafter referred to as “low battery failure alarm”) is output and the battery is output. The exchange is encouraged.

In this low battery failure state, the device consumes less power than when the battery voltage is normal (for example, lengthens the intermittent reception cycle) and secures a certain amount of time until the operation is stopped due to battery exhaustion. In this way, the user can get a grace period for taking measures such as replacing the battery when he / she notices a low battery failure. Alternatively, after a predetermined grace period (for example, 72 hours) is secured, the previous operation period (operation period until a low battery failure state is reached) is extended.

JP 2007-094719 A Utility Model Registration No. 3143139

  By the way, in such a conventional interlocking type home guard, when a fire or an event other than a fire is detected, a transmission operation that repeats transmission for a predetermined time multiple times with a predetermined pause time in accordance with a communication standard By transmitting the interlock signal intermittently multiple times, the fire alarm signal and the interlock signal other than the fire can be received by other house alarms that perform intermittent reception so that an interlock alarm can be issued.

  However, the linkage when a fire is detected is more important than the linkage when an event other than a fire is detected, and it is necessary to transmit and receive more reliably without being affected by the radio wave environment. In the case of a mortgage guard, the same transmission / reception system is used for interlocking fires and events other than fires. Here, it is desirable to further improve the speed and certainty of transmission / reception at least for fire interlocking, which is highly important as described above.

  An object of the present invention is to provide an interlocking type alarm device that enhances the ability to transmit an interlocking signal so that the interlocking operation can be performed quickly and reliably when the battery voltage is normal and an abnormality such as a fire is detected. And

Another object of the present invention is to reduce the power consumption related to the reception operation in response to the increase in power consumption related to the transmission operation for increasing the transmission capability, thereby suppressing the increase in the total power and the battery. An object is to provide an interlocking alarm device and a monitoring system that reduce the influence on the life.

The present invention is an interlock type alarm device that operates with a battery power source and outputs an alarm when an abnormality in the monitoring area is detected .
Regardless of the battery voltage, when detecting the abnormality of the monitoring area, reduced power consumption and transmits the higher to the interlocking signal from transmission capacity as compared with the case of detecting the other events other than abnormalities in the monitored area And receiving an interlocking signal .

In addition, 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 the abnormality of the monitoring area is received from the alarm device of
The transmitter
When an event other than the abnormality in the monitoring area is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device,
If a monitoring area abnormality is detected, a second transmission mode having a higher transmission capability than the first transmission mode is set, and an interlocking signal indicating the monitoring area abnormality is transmitted to another alarm device .
In the first transmission mode and the second transmission mode, transmission in which a predetermined pause time and a predetermined transmission time are combined is repeated a plurality of times, and in the second transmission mode, the number of combined transmissions is made larger than that in the first transmission mode. Features.

  The second transmission mode further increases transmission power compared to the first transmission mode.

  In the second transmission mode, the transmission radio wave intensity is increased or the transmission frequency is increased as compared with the first transmission mode.

In addition, 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 the abnormality of the monitoring area is received from the alarm device of
The transmitter
When an event other than the abnormality in the monitoring area is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device,
If a monitoring area abnormality is detected, a second transmission mode having a higher transmission capability than the first transmission mode is set, and an interlocking signal indicating the monitoring area abnormality is transmitted to another alarm device.
The receiver
When abnormalities in the monitoring area or other events are not detected, intermittent reception is performed to set a predetermined receivable time every predetermined period,
When other events are detected, a predetermined first reception mode is set and an interlocking signal is received from another alarm device,
When detecting abnormality of the monitoring region, characterized in that by setting a smaller second reception mode power consumption than the first reception mode to receive the interlock signal from another alarm device.

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 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, if the receiver receives an ACK signal from another resident alarm and detects an alarm device that does not receive the ACK signal, it is synchronized 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 the alarm device of the present invention, the transmission unit relays and transmits the interlock signal when the receiver receives the interlock signal from another alarm device .

In the monitoring system having a alarm of the present invention, the transmission unit of the alarm device, when receiving the interlocking signal from another alarm device by the reception section, characterized in that relay-transmits the interlocking signal.

  According to the alarm device of the present invention, when an abnormality such as a fire is detected, a second transmission mode that consumes more power than the first transmission mode that transmits an interlocking signal when an event other than a fire is detected, for example, transmission Since the second transmission mode with increased frequency and transmission power (radio wave intensity, etc.) is set and the fire interlocking signal is transmitted, the transmission capability of the interlocking signal is enhanced and the fire is relatively important for other events The interlocking signal accompanying abnormality detection such as the above can be promptly and reliably transmitted to another alarm device, and the interlocking alarm can be issued even at the interlocking destination, and the reliability of the interlocking alarm can be improved.

  In addition, transmission of high power consumption in the second transmission mode for enhancing the transmission capability promotes battery consumption. However, when an abnormality such as a fire is detected, it corresponds to the second transmission mode and other than fire. In order to set the 2nd reception mode with low power consumption to the 1st reception mode which receives the interlocking signal from other alarm devices when an event is detected, it is promoted by transmission of high power consumption based on own fire detection. Battery consumption can be reduced by receiving low power consumption.

  Here, in the second reception mode for reducing power consumption, the reception function is lowered, and there is a possibility that the interlocking function with other alarm devices may be impaired.

  However, for example, when an interlock system is configured with three or more alarm devices (as is the case with a general residential mortgage alarm system), when each alarm device can execute the relay function of the interlock signal, from other alarm devices Since the transmitted interlocking signal is relayed and transmitted by another alarm device, a predetermined number of transmissions can be ensured as a whole, so that the interlocking function is prevented from being impaired by increasing the reception opportunity. In this way, while the self outputs a malfunction alarm such as a fire as a link source, even if the reception function is lowered, there is substantially no problem.

In addition, when the self is outputting a warning alarm such as a fire as the interlock source, the necessity of processing the interlock signal from other alarm devices is relatively low in the first place. It does n’t matter. For this reason, it is possible to set “reception stop”, which is the reception operation pattern with the lowest power consumption, as the second reception mode.

Explanatory drawing which showed the house which installed the monitoring system by the interlocking type residence guard of this invention 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 A tag that indicates the transmission / reception operation when an event other than a fire is detected while the battery voltage is normal. Im chart A time chart that shows the transmission and reception operations when a fire is detected with the battery voltage in a normal state G Explanatory drawing which showed the format of the interlocking signal used in embodiment of FIG. Flow chart showing the reception process 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 an interlocked house alarm as an alarm device 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, in the interlocked home alarm devices 10-2 to 10-6, as an alarm operation, for example, a fire alarm sound is output by a voice message such as “Please confirm that another fire alarm device 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 interlocking smoke type house alarm 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 a 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) under the control of an alarm processing unit 60 described later, and generates a voice message, an alarm sound, or the like based on various data stored in the memory etc. Output. The LED 22 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 residential alarm devices 10-2 to 10-6 and the interlocking contents.

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. “Please confirm” voice message is repeatedly output, control is performed to turn on the LED 22 and display an alarm indicating the interlocking source, and further fires via the transmission control unit 62 and the transmission circuit 42 The interlocking signal is transmitted from the antenna 31 to 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. A test is performed, and when the battery voltage is lower than the threshold voltage, the low battery failure is preliminarily determined, and the result is counted and stored. Further, when the low battery failure preliminary determination continues continuously for a predetermined number of times, the low battery failure is determined (confirmed). The low 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.

  In the transmission controller 62, the alarm processor 60 detects fire based on the smoke detection signal from the smoke detector 16, the alarm stop input or inspection instruction input by the operation unit 38, and the smoke detection signal output from the smoke detector 16 decreases. When a self-event such as a low battery failure or a sensor failure is detected, such as a fire recovery that eliminates the fire detection state, a synchronization signal indicating the detected event content is transmitted to the transmission circuit 42 of the wireless communication unit 30, the antenna It is transmitted to the house keeper at the link destination via 31. Further, the transmission control unit 62 relays and transmits the interlocking signal that is effectively received from the other home guards as necessary.

  In addition, the transmission control unit 62, when the alarm processing unit 60 detects an event other than a fire in the state where the power supply voltage is equal to or higher than a predetermined level (low battery failure is not detected), The signal is transmitted to another residential alarm device by setting a predetermined first transmission mode.

  In the first transmission mode, as shown in FIG. 4A, when an event other than a fire is detected at time t1, as shown in FIG. 4B, a predetermined time T1, for example, T1 = The transmission operation 70 for transmitting the interlocking signal over 3 seconds is repeated, for example, four times 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 the intermittent sense carrier sense in the other home alarm device, and the reception operation of the other home alarm device is started, 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. Here, the reception control unit 64 receives an interlocking signal from another residential alarm device by intermittent reception when the power supply voltage is equal to or higher than a predetermined level (low battery failure is not detected) in the alarm processing unit 60. In this state, when an event other than a fire is detected by itself, a predetermined first reception mode is set and an interlocking signal is received from another house alarm device.

  As shown in FIG. 4C, before the event detection at the time t1, the intermittent reception repeats the reception operation during the receivable time T4 every period T3. For example, the period T3 = 7 seconds and the receivable time T4 = 100. Milliseconds. When a transmission dummy signal from another house alarm is detected by carrier sense during the receivable time T4, the reception signal is switched to the constant reception for a predetermined time and the interlocking signal following the dummy signal is received.

  In the first reception mode, when an event other than a fire is detected by itself at time t1 in FIG. 4 (A), as shown in FIG. 4 (C), intermittent reception of the previous period T3 is always received. So that an interlocking signal (for example, an ACK signal to be described later) from another house alarm can be quickly received. During the occurrence of an event other than a fire (while the detection state is continuing), the continuous reception operation 80 is continued. When the event detection state is canceled, the continuous reception operation 80 is stopped and the intermittent reception operation before the event detection is restored.

  Here, because the transmission and reception radio channel frequencies are the same, during the continuous reception operation 80, the transmission time T1 of the transmission operation 70 performed in parallel cannot receive the interlocking signal from other resident alarms, The portion corresponding to the transmission pause time T2 and the portion after the end of transmission are used as an effective reception operation 82.

  In addition, when the self-transmitting signal is transmitted, the reception control unit 64 receives an acknowledgment signal (hereinafter referred to as an “ACK signal”) indicating that the interlocking signal has been normally received from the other residential alarm devices 10-2 to 10-6. It is monitored whether or not it is effectively received.

  When other resident alarms that do not receive an ACK signal (cannot confirm ACK signal reply) are detected, other resident police confirmed that ACK signal has been received (reply ACK signal confirmed) The transmission control unit 62 transmits an interlocking signal (referred to as an interlocking signal with relay request) to the transmitter, and receives the interlocking signal with relay request, and has confirmed the ACK response. This is relay-transmitted to the home alarm device that has not yet responded to the AKC signal. The AK that has not received an AKC signal that has received the interlocking signal relayed here performs an alarm process or the like based on this reception, and returns an ACK signal in response to this reception. The transmission is received by the interlocking home security device 10-1.

  In addition, the transmission control unit 62 and the reception control unit 64 set a predetermined second transmission mode with increased power consumption when a fire is detected in a normal state of a battery voltage at which a low battery failure is not detected. A predetermined second reception mode in which the transmission capability of the interlocking signal is increased and the power consumption is reduced is set to receive the interlocking signal from the other mortgages 10-2 to 10-6.

  FIG. 5 is a time chart showing a transmission / reception operation when a fire is detected with a normal battery voltage. As shown in FIG. 5 (A), if a fire is detected at time t1, the transmission control unit 62 sets the second transmission mode and transmits the fire-linked signal as shown in FIG. 5 (B). I do.

  In the second transmission mode, as in the first transmission mode of FIG. 4B, the transmission operation 70 for transmitting the interlocking signal for T1 = 3 seconds is repeated, for example, six times with a pause time of T2 = 2 seconds. As described above, the second transmission mode increases the power consumption by increasing the number of times of transmission twice as compared with the first transmission mode, but the transmission capability for the other residential alarm devices 10-2 to 10-6 is improved. In addition, the fire interlock can be performed quickly and reliably.

  As the second transmission mode, the transmission power (radio wave intensity) may be increased in addition to this, and the power consumption will increase in the same manner, but the other transmission devices 10-2 to 10-6 The transmission function is improved, and the fire interlock can be performed quickly and reliably.

  On the other hand, the second reception mode set by the reception control unit 64 is any one of the low power consumption modes shown in FIGS.

  The second reception mode in FIG. 5C corresponds to the transmission operation 70 in FIG. 5B when a fire is detected at time t1, and the intermittent reception until then is switched to the constant reception operation 80. The reception operation 80 continues during the transmission repetition by the transmission operation 70. When a series of repeated transmissions is completed, the reception operation 80 is returned to the intermittent reception before the event detection. Note that the constant reception operation 80 may be terminated after an appropriate delay time has elapsed from the end of repeated transmission (after a predetermined time has elapsed).

  Here, as in the case of FIG. 4C, the constant reception operation 80 has the same transmission / reception radio channel frequency, and therefore the transmission time T1 of the transmission operation 70 performed in parallel is an interlocking signal from another resident alarm. Cannot be received, and the portion corresponding to the transmission suspension time T2 is set as the effective reception operation 82.

4C is different from the first reception mode in FIG. 4C in that the continuous reception operation 80 is performed when a series of repeated transmissions are completed, or when a predetermined time has passed thereafter. The time of the continuous reception operation 80 is shortened because it is returned to the intermittent reception before the event detection, and although the reception function is lowered, the power consumption can be reduced correspondingly, and the power consumption increased by the setting of the second transmission mode. Can be offset or suppressed.

  The second reception mode in FIG. 5D is substantially the same as that in FIG. 5C, but after the constant reception operation 80 corresponding to the transmission mode in FIG. Switch to lowered intermittent reception. Specifically, the intermittent reception cycle T3 up to time t1 is set to intermittent reception with a shorter cycle T5, and further, the receivable time T6 for each reception cycle T5 is from the receivable time T4 of intermittent reception up to time t1. The power consumption is shortened and the power consumption can be further reduced as compared with FIG. It should be noted that increasing the period of intermittent reception and shortening the receivable time may be either one in addition to both.

  When the second reception mode is set in order to reduce the power consumption in this way, the reception function is also deteriorated, but the interlocking signals from the other mortgages 10-2 to 10-6 are necessary. In response, since the number of transmissions is ensured by more than a predetermined by relay transmission from other resident police, shorten the reception band constantly by setting the second reception mode, increase the reception cycle of intermittent reception, Alternatively, even if the receivable time is shortened to lower the reception function, there is practically no problem.

  In addition, while the home alarm device 10-1 itself is outputting a malfunction alarm such as a fire as the link source, it is less necessary to process the link signals from the other alarm devices 10-2 to 10-6, so the reception function is lowered. It doesn't really matter if you let it.

In addition to the above, as the second reception mode, the reception operation corresponding to the illustrated constant reception operation 80 is also an appropriate intermittent operation, the transmission operation 70 is repeated, the fire detection state is continuing, or the appropriate The reception operation may be stopped during the period in which the delay time is added.

  In addition, after a fire is detected and transmission / reception is performed in the second transmission mode and the second reception mode, if a fire recovery or alarm stop is detected as an event other than a fire, a fire recovery interlocking signal or alarm is detected in the first transmission mode. When the stop interlock signal is transmitted and the operation is switched to the continuous reception operation in the first reception mode, and the ACK signal is received from the other resident alarm for the fire recovery interlock signal and the alarm stop interlock signal, and the ACK signal reception is confirmed. In addition, if an appropriate delay time has passed after confirmation of 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.

  Further, when a fire or an event other than a fire is detected in a low battery failure state in which the battery voltage is reduced, the first transmission / reception mode may be the same as in FIG. 4, or a transmission / reception mode with further low power consumption may be used. As described above, even when the first transmission / reception mode in the low battery failure state is lower than the first transmission / reception mode in the normal battery voltage state, the second transmission mode is consumed more than the first transmission mode in this state. It is assumed that the power is large but the transmission capability is increased, and that the second reception mode is an operation with lower power consumption than the first reception mode.

  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 the content of an event such as a fire, and 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 the transmission / reception processing in the residence guard 10 of the present invention. This is a flowchart in a normal battery voltage state, but as described above, the same applies to a low battery fault state. In FIG. 7, the transmission / reception process sets an intermittent reception mode with a period T3 and a receivable time T4 as an initial mode in step S1, and then determines whether or not a fire is detected in step S2 and does not detect a fire. In step S3, it is determined whether or not an event other than a fire has been detected.

  If an event other than a fire is detected in step S3, the process proceeds to step S4 to set a first transmission mode in which the transmission operation 70 shown in FIG. 4 (B) is repeated four times, and at the same time, shown in FIG. 4 (B). The first reception mode is set, and the first reception mode is continued until it is detected that the event detection state determined in step S3 has ended (released) due to recovery or the like. When the end of the event is detected, the process returns to step S1. Set the intermittent reception mode before detecting the event again.

  On the other hand, if fire detection is determined in step S2, the process proceeds to step S6, where the second transmission mode shown in FIG. 5B, for example, is set to increase the transmission capability, and for example, FIG. ) Is set to reduce the influence of increased power consumption due to the setting of the second transmission mode.

  Subsequently, in step S7, it is determined whether or not the fire detection state has been canceled by fire recovery detection or the like. When fire recovery is detected, the process returns to step S1 and the intermittent reception mode before event detection is set again. When returning from step S7 to step S1, a predetermined delay time may be elapsed as necessary. Of course, when returning from step S5 to step S1, an appropriate delay time elapsed condition determining step may be inserted in the same manner.

  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, the presence or absence of a fire is detected. If there is an initialization abnormality in step S11, the notification unit 36 notifies that fact, and the operation is stopped halfway, or the processing of step S11 is performed again, but the illustration is omitted. .

  In step S12, when the smoke detection signal output from the smoke detector unit 16 provided in the sensor unit 34 exceeds a predetermined fire level, a fire is detected and the process proceeds to step S13, and the fire-linked signal is wirelessly transmitted to other residential alarms. In addition to the transmission, a fire alarm indicating an interlocking 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, for example, lighting the LED 22.

  If a fire is detected in step S13, a fire-linked signal is transmitted by setting the second transmission mode to be the high power consumption mode, and the intermittent reception is switched to the low power consumption reception mode by the second reception mode. Receive an interlock signal such as an ACK signal from the home alarm.

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. If fire recovery detection is determined, a fire recovery interlock signal is output in step S15. While transmitting to another house alarm, the fire alarm which shows the interlocking origin by the alarm sound from the speaker 56 and lighting of LED22 is stopped.
The alarm display by the LED 22 may be turned off after a predetermined time has elapsed since the alarm sound stopped. If fire recovery is detected in step S14, the second reception mode that has been continued is terminated.

  Subsequently, in step S16, it is determined whether or not an alarm stop instruction operation of the alarm stop switch 20 has been detected. If switch operation detection is determined, the process proceeds to step S17, where an alarm stop interlocking signal is transmitted to another house alarm, and the speaker 56 The alarm sound output indicating the link source from 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 S25 and S27 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.

  Then, it progresses to step S18 and it is discriminate | determined the presence or absence of the fire interlocking | linkage signal effective reception detection transmitted or relay-transmitted from the other residence police. When the effective reception detection of the fire interlock signal from another house alarm is determined, the process proceeds to step S19 to output an alarm sound from the own speaker 56 as a fire alarm indicating the interlock destination, for example, an alarm display by blinking of the LED 22 is performed. .

  Next, in step S20, it is determined whether or not a fire recovery interlocking signal effective reception detection is transmitted or relayed from another home police, and if the fire recovery interlocking signal effective reception detection is determined, the process proceeds to step S21 to interlock. The alarm display by the alarm sound output from the speaker 56 and the blinking of the LED 22 performed as the previous alarm is stopped.

  Next, in step S22, the presence or absence of effective reception of an alarm stop interlocking signal transmitted or relay-transmitted from another resident alarm is detected, and when effective reception of the alarm stop interlocking signal is detected, the process proceeds to step S23 to interlock with The alarm sound output is stopped and the alarm display is also stopped.

  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 and processing accompanying it are performed as necessary. The illustration is omitted for simplicity.

  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.

  In addition, the system which increases power consumption as a 2nd transmission mode and raises a transmission capability is not limited to said embodiment, An appropriate system can be taken. Similarly, the method of reducing power consumption as the second reception mode is not limited to the above embodiment, and an appropriate method can be adopted. In short, at least when a fire is detected, it is sufficient that at least the fire-linked signal can be transmitted more reliably than other events. At this time, it is not essential to switch the reception mode to the low consumption mode.

  In addition, the above embodiment is an example of a residential alarm device that detects and alerts a fire as an abnormality in the monitoring area. However, a fire alarm device other than a residential alarm device, a gas leak alarm device, a CO alarm device, The present invention can be similarly applied to an alarm system in which an alarm device for crime prevention is arranged and an alarm system in which various alarm devices are arranged in a mixed manner.

  Moreover, the monitoring system using the alarm device of the present invention may include a conventional alarm device that does not partially include the transmission mode switching function according to the present invention. Even in this case, the object of the present invention can be achieved at least partially as a whole.

  In addition, the residential alarm device 10-1 (and 10-2 to 10-6) in FIG. 3 includes a smoke detector 16, which detects smoke generated by a fire and detects a fire in the monitoring area. This is taken as an example of a type of home alarm (alarm), but in addition to this, a thermal home alarm (alarm) equipped with a temperature detection element such as a thermistor that detects heat associated with fire and other types of fire This also applies to residential alarms that detect environmental changes, alarms that detect gas leaks in addition to fires, various alarms that detect intruders, earthquakes, and other abnormalities, and alarms that combine these alarms. It is included in the object of the invention.

  In the above embodiment, when a fire is detected as a predetermined event, an example is shown in which the transmission mode is switched to increase the transmission capability. However, in the alarm device that targets other events as abnormal, the event is detected. For example, in a gas leak alarm device, when a gas leak is detected, the transmission mode is switched.

  In addition to the abnormalities in the monitoring area that the alarm device originally monitors, such as a fire, the transmission mode may be switched in the same manner as described above for, for example, an important failure event.

  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 flowcharts in the above-described embodiments have described a schematic example of processing, and the order of processing is not limited to this. 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 (10)

In a linked alarm device that operates with battery power and outputs an alarm when an abnormality in the monitoring area is detected,
Regardless of the battery voltage, when an abnormality in the monitoring area is detected, the transmission capability is increased compared to the case where an event other than the abnormality in the monitoring area is detected, and an interlocking signal is transmitted and power consumption is reduced. An alarm device characterized by receiving an interlocking signal with a small size.
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 an event other than an abnormality in the monitoring area is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device,
When detecting an abnormality in the monitoring area, a second transmission mode having a higher transmission capability than the first transmission mode is set, and an interlocking signal indicating the abnormality in the monitoring area is transmitted to another alarm device,
In the first transmission mode and the second transmission mode, transmission in which a predetermined pause time and a predetermined transmission time are combined is repeated a plurality of times, and in the second transmission mode, the number of times of the combined transmission is greater than that in the first transmission mode. An alarm device characterized by doing more.
The alarm device according to claim 2, wherein the second transmission mode further increases transmission power compared to the first transmission mode.
The alarm device according to claim 2, wherein the second transmission mode has a higher transmission radio wave intensity or higher transmission frequency than the first transmission mode.
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 an event other than an abnormality in the monitoring area is detected, a predetermined first transmission mode is set and an interlocking signal indicating the detection content is transmitted to another alarm device,
When detecting an abnormality in the monitoring area, a second transmission mode having a higher transmission capability than the first transmission mode is set, and an interlocking signal indicating the abnormality in the monitoring area is transmitted to another alarm device,
The receiver is
When abnormalities in the monitoring area or other events are not detected, intermittent reception is performed to set a predetermined receivable time for each predetermined period,
When the other event is detected, a predetermined first reception mode is set and an interlocking signal is received from another alarm device,
When detecting an abnormality in the monitoring area, set a second reception mode that consumes less power than the first reception mode and receive an interlocking signal from another alarm device;
An alarm device characterized by that.
The alarm device according to claim 5 ,
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.
The alarm device according to claim 5 ,
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.
In the alarm device according to claim 2 or 5 ,
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 transmitting the interlock signal from the transmitter, the receiver receives an ACK signal from another resident alarm, and when detecting an alarm that does not receive the ACK signal, the other alarm device that has received the ACK signal On the other hand, an alarm device characterized in that the interlocking signal including a code indicating a relay request is transmitted to the interlocking signal, and the contents of the interlocking signal are relayed and transmitted.
6. The alarm device according to claim 2 , wherein the transmitting unit relays and transmits the interlock signal when the receiver receives the interlock signal from another alarm device.
A claim 2 or 5 the monitoring system having a alarm device disclosed, the transmission unit of the alarm device, when receiving the interlock signal from another alarm device by the reception section, to relay transmits the interlock signal A monitoring system characterized by

Images