JP2014160294A - Alarm system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an alarm to be issued by promptly and surely determining abnormality such as fire on the basis of a temperature as a local observation value of a monitoring area and a smoke density as a whole observation value of the monitoring area.SOLUTION: An alarm unit with a temperature sensor 100-1 is placed in a predetermined monitoring area A, and temperature observation chips 10-11 to 10-14 are placed in the same monitoring area A. The alarm unit 100-1 detects abnormality on the basis of a smoke density as an observation value of the whole monitoring area A and outputs a fire alarm. The temperature observation chips 10-11 to 10-14 are placed in predetermined local spots in the monitoring area A so as to transmit a temperature observation signal including data which shows temperatures as observation values in local areas A1 to A4 to the alarm unit 100-1 and, when detecting abnormality on the basis of the temperatures as observation values shown by the data of the temperature observation signal received by the alarm unit 100-1, output a fire alarm.

Description

  The present invention relates to an alarm system that determines and alerts an abnormality such as a fire by a combination of an alarm device that monitors the entire monitoring area and a temperature observation chip that locally monitors the monitoring area.

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

  For example, in such a house alarm, it is operated by a battery power source, and a sensor part for detecting a fire and an alarm part for alarming a fire are integrally provided in the house alarm, based on a fire phenomenon detection signal of the sensor part. When a fire is detected, a fire alarm sound of a predetermined pattern is output from the alarm unit, and the fire alarm and alarm notification can be performed by a single residence guard without the need for a receiver or the like as in the so-called automatic fire alarm facility. Installation is simple and inexpensive, and it has become widespread with the mandatory 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. Containers are also in practical use and are in widespread use.

JP 2007-094719 A Utility Model Registration No. 3143139 JP 2009-140236 A

  Most of the places where fires occur are places where various heat sources such as stoves and gas stoves are used, and places where fire is used, places where fire is used for smoking, waste bins, etc. Etc. In order to detect fires that occur in such places at an early stage, it is only necessary to install residential alarms at or near these locations, but current residential alarms and other fire alarms are It is installed on the ceiling surface and the upper part of the wall surface overlooking the entire monitoring area, and the fire is not monitored in a spot-like manner by further narrowing the location in this monitoring area.

  In order to solve this, it is unreasonable to arrange the home alarms in each region because the number of installed home alarms increases.

  As another method of spot-observing fire locally, for example, a temperature sensor is installed at or near the monitoring target device, the monitoring target location, the temperature rise due to the fire is detected, and the fire is detected based on this. A fire detection signal may be output. However, in order to detect and alarm a fire, an alarm unit that performs an acoustic alarm or display is required in addition to a sensor unit that uses a temperature sensor. The fire is monitored by placing it directly (close to) a place such as a container, which increases the cost and is not practically desirable.

  In addition, the home alarm is installed in a place where it is easy to detect a fire in consideration of convection of smoke or hot air flow, for example, the ceiling surface or the upper part of the wall surface, while the sensor unit and alarm unit, and various operation units are integrated. For example, when it is installed at a high place, it is difficult to operate because it is difficult to reach the operation part, so a place suitable for installation of the sensor part is not necessarily suitable for installation of the alarm part or operation part. There was also a problem that did not match.

  In order to solve this problem, the applicant of the present application is provided with an alarm device and one or more temperature observation chips assigned thereto, and a temperature observation chip is installed in a predetermined local area. When the indicated temperature is equal to or higher than a predetermined threshold temperature, an abnormality such as a fire is detected and an abnormality detection signal is transmitted to the alarm device. The alarm device receives an abnormality detection signal from the temperature observation chip and issues an alarm system. is suggesting.

  According to such an alarm system, the temperature observation chip can be used for various kinds of heaters such as various stoves and gas stoves, heat source equipment, installation locations, places where fire is used for smoking, in particular, beds or bedrooms where sleeping cigarettes are used. Furthermore, by installing it in a predetermined local area, such as a waste container, or other equipment or place that is relatively likely to become a fire source, abnormalities based on the temperature indicated by the spot-observed temperature observation result Is detected, and an abnormality detection signal is sent to the alarm device to promptly and reliably alarm an abnormality such as a fire that has occurred in a predetermined local area.

  However, in an alarm system composed of a temperature observation chip and an alarm device, a temperature observation chip is installed in a predetermined local area in the monitoring area of the alarm system as needed. Or even if the detection areas of each of the plurality of temperature observation chips are combined, the entire monitoring region cannot always be covered. In this way, if there is an area that is not monitored by any detection area of the temperature observation chip in the monitoring area, if an abnormality such as a fire occurs in that area, a fire etc. to the detection area of any temperature observation chip Although the abnormalities of the fire are expanded and a warning such as a fire is detected and alarmed based on the observation result of the temperature observation chip, there remains a problem that the time delay until the fire detection is increased.

  The present invention provides an alarm system that can quickly and surely determine abnormalities such as fires based on the temperature that is a local observation value in the monitoring area and the smoke concentration that is the overall observation value in the monitoring area, thereby enabling an alarm. The purpose is to do.

(Alarm system)
The present invention provides an alarm system,
When it is placed in a predetermined monitoring area, the smoke density of the entire monitoring area is observed and an abnormality is detected based on the smoke density, which is the observed value, an abnormality alarm is output, and the temperature observation signal data received from the outside Alarm means for outputting an abnormality alarm when an abnormality is detected based on the temperature that is the observed value;
A temperature observation unit that is installed in a predetermined local area in a predetermined monitoring region, observes the temperature of the predetermined local area, and transmits a temperature observation signal including data indicating the temperature as an observation value;
Is provided.

(Abnormality detection with a single threshold)
The alarm means detects an abnormality and outputs an abnormality alarm when the temperature, which is the observation value indicated by the data of the temperature observation signal received from one or a plurality of temperature observation means, is equal to or higher than a predetermined threshold temperature. When the smoke concentration, which is the observation value of the entire monitoring area, is equal to or higher than a predetermined threshold temperature, an abnormality is detected and an abnormality alarm is output.

(Abnormality detection by two-step judgment)
Alarm means
When the temperature, which is the observation value indicated by the data of the temperature observation signal received from one or a plurality of temperature observation means, is equal to or higher than a predetermined first threshold temperature, an abnormality predictor is detected and an abnormality forecast alarm is output. When the temperature that is the observation value indicated by the temperature observation signal data is equal to or higher than a predetermined second threshold temperature that is higher than the first threshold temperature, an abnormality is detected and an abnormality alarm is output.
Further, when the smoke concentration that is the observation value of the entire monitoring region is equal to or higher than the first threshold smoke concentration, an abnormality predictor is detected and an abnormality forecast alarm is output, and the smoke concentration that is the observation value of the entire monitoring region is the first threshold smoke. When the second threshold smoke density is higher than the density, the abnormality is detected and an abnormality alarm is output.

(Linked system)
The alarm means detects an abnormality based on the temperature that is the observation value indicated by the data of the temperature observation signal received from one or a plurality of temperature observation means, or based on the smoke concentration that is the observation value of the entire monitoring area. When an abnormality is detected, an abnormality alarm indicating the interlocking source is output and an abnormality interlocking signal is transmitted to the alarm means of another alarm system to output an abnormality alarm indicating the interlocking destination, while another alarm system alarm is output. When an abnormality interlocking signal is received from the means, an abnormality alarm indicating the interlocking destination is output.

(Basic effect)
According to the present invention, when an abnormality is detected based on the smoke density that is the observation value of the entire monitoring area, the abnormality alarm is output and arranged in a predetermined local area in the monitoring area. A temperature observation means is arranged, and a temperature observation signal including data indicating a temperature that is an observation value by the temperature observation means is transmitted to the alarm means. The alarm means indicates an observation value indicated by the data of the temperature observation signal received from the temperature observation means. When an abnormality is detected based on a certain temperature, an abnormality alarm is output. Therefore, a combination of the overall abnormality monitoring of the monitoring area by the alarm means and the spot-like abnormality monitoring by the temperature observation means has caused the alarm in the monitoring area. Anomalies can be detected and alarmed reliably at an early stage.

(Effects of local monitoring)
For example, even if a local abnormality that takes time to detect an abnormality is detected in the overall monitoring by an alarm means, the temperature observation means can be used by, for example, various stoves, gas stoves, etc., equipment using heat sources, installation locations, smoking, etc. By installing it in a predetermined area such as a place where a cigarette is used, especially a bed or bedroom where sleeping cigarettes are used, and a waste container, etc. A temperature observation signal including data indicating the temperature that is the observation value observed in a spot manner is sent to the alarm means, and an abnormality is detected based on the smoke concentration that is the observation value indicated by the data of the temperature observation signal received by the alarm means. By promptly and reliably alarming abnormalities occurring in a predetermined area, the user can be appropriately dealt with.

(Effects of overall monitoring)
Also, even if an abnormality occurs at a location away from the temperature observation means arranged in a predetermined area, the abnormality is detected quickly and reliably by the alarm means that monitors the entire monitoring area. Even if an abnormality is missed, it can be detected and alarmed at an early stage.

(Effects on local arrangement of temperature observation means)
Also, by monitoring the overall monitoring area for abnormalities by means of warning means, it is possible to monitor the spot-like abnormalities by arranging the temperature observation means in a predetermined local area without considering the overall monitoring of the monitoring area. In addition, it is possible to reduce the restriction in arranging the temperature observation means in a predetermined local area and increase the degree of freedom of local arrangement.

(Effect of covering the whole monitoring by local monitoring)
The alarm means for monitoring the abnormality of the entire monitoring area is a spot of one or a plurality of temperature observation means in which a monitoring area corresponding to the sensing area covered by the alarm means itself is arranged in a predetermined local area in the alarm area. It is possible to monitor in detail by covering with the general abnormality monitoring, and to detect the occurrence of an abnormality or its sign at an early stage and improve the abnormality monitoring performance.

(Effect of detecting abnormalities with alarm means)
Further, the temperature observation means transmits a temperature observation signal including data indicating the temperature that is the observation value to the alarm means, and based on the temperature that is the observation value indicated by the data of the temperature observation signal received from the temperature observation means by the alarm means. Since the abnormality is detected and it is not necessary to detect the abnormality by the temperature observation means, the structure of the temperature observation means is simplified, and the size and cost can be reduced.

(Effects of two-step judgment)
In addition, the temperature observation means sets the threshold temperature for detecting the temperature abnormality in two steps, high and low, detects an abnormal sign indicating an abnormal sign such as overheating above the lower first threshold temperature, and outputs an abnormal sign detection signal. The alarm is output by the alarm means, the abnormality is detected at the higher second threshold temperature or higher, the abnormality detection signal is transmitted, and the alarm means is output by the alarm means. It is possible to know the signs of the abnormality at an early stage and appropriately deal with it by using the abnormality forecast warning issued before.

  Similarly, the alarm means also sets the threshold smoke density at two stages, high and low, detects an abnormal sign indicating an abnormal sign above the lower first threshold smoke density, outputs an abnormal forecast alarm, By detecting an abnormality at two or more threshold smoke concentrations and outputting an abnormality alarm, the user can recognize an abnormality sign at an early stage by the abnormality prediction alarm issued before the abnormality alarm and appropriately deal with it.

(Effect of interlocking alarm system)
Moreover, since one alarm system is formed by one alarm means and one or a plurality of temperature observation means assigned to the alarm means, and a plurality of alarm systems can be provided and arranged in each room, for example, When an alarm is detected and an alarm is issued, an alarm interlock signal can be sent to an alarm system in another room to notify the alarm, and a multi-communication network between multiple alarm systems can be constructed flexibly and appropriately. In addition, it is possible to detect anomalies in a multi-spot manner in response to monitoring areas such as detached houses, apartment houses, schools, hospitals, office buildings, etc., and to alert early.

Explanatory drawing which showed schematic structure of the alarm system by this invention Explanatory drawing showing an installation example of an alarm system according to the present invention Explanatory drawing showing the appearance and structure of the temperature observation chip Block diagram showing schematic configuration of temperature observation chip Block diagram showing the schematic configuration of the alarm Explanatory diagram showing a fire that is subject to overall monitoring of the monitoring area Explanatory diagram showing the case of a local fire Explanatory drawing showing another embodiment of the temperature observation chip Explanatory drawing showing another embodiment of the temperature observation chip Explanatory drawing showing another embodiment of the temperature observation chip Explanatory drawing showing another embodiment of the temperature observation chip

[Configuration of alarm system]
(Outline of system configuration)
FIG. 1 is an explanatory diagram showing a schematic configuration of an alarm system according to the present invention. The alarm system of the present invention comprises at least one alarm device with a smoke concentration sensor and a plurality of temperature observation chips.

  The alarm device 100 (100-1 to 100-4) with a smoke concentration sensor monitors a predetermined abnormality such as a fire using a predetermined three-dimensional space as a monitoring area. In addition, the alarm device 100 observes the temperature of the entire monitoring region by the smoke concentration sensor and outputs an abnormality alarm when the abnormality is detected based on the smoke concentration as an observation value, and the temperature observation chip 10 (10-11). 10-44) is an alarm means for outputting an abnormality alarm when an abnormality is detected based on the temperature which is the observation value indicated by the data of the temperature observation signal received from any one of the temperature observation chips 10 (10-11 to 10-11). 10-44) is a temperature at which at least one unit is installed in a predetermined local area in the monitoring area of the alarm means, the temperature of the predetermined local area is observed, and a temperature observation signal including data indicating the temperature as an observation value is transmitted. It is an observation means. In the following description, a case where the alarm device 100 outputs a fire alarm as an abnormality alarm will be described as an example.

(Alarm and temperature observation chip layout)
In FIG. 1, alarm devices 100-1 to 100-4 with smoke density sensors are installed in each room such as a kitchen, a living room, a child's room, and a main bedroom in a house, and the alarm devices 100-1 to 100-4 are installed. Corresponding to each of these, temperature observation chips 10-11 to 10-44 are arranged to constitute alarm systems 1a to 1d.

  That is, the alarm system 1a is composed of the alarm device 100-1 and the temperature observation chips 10-11 to 10-14, and the alarm system 1b is composed of the alarm device 100-2 and the temperature observation chips 10-21 to 10-24. The alarm system 1c includes an alarm device 100-3 and temperature observation chips 10-31 to 10-34, and the alarm system 1d includes an alarm device 100-4 and temperature observation chips 10-41 to 10-44.

  Taking the alarm system 1a as an example, each of the temperature observation chips 10-11 to 10-14 observes a predetermined local temperature, and sends a temperature observation signal including data indicating the temperature as the observation value to the alarm device 100-1. Send to.

  The alarm device 100-1 with a smoke density sensor observes the smoke density of the entire monitoring area, and outputs a fire alarm when an abnormality is detected from the smoke density as the observed value, and the temperature observation chips 10-11 to 10-11. A fire alarm is also output when an abnormality is detected based on the temperature that is the observation value indicated by the data of the temperature observation signal received from any one of 10-14.

  Between the alarm device 100-1 and the temperature observation chips 10-11 to 10-14 is a communication path 11 according to a predetermined first communication protocol, and the temperature observation chips 10-11 to 10-14 are alarmed via this path. A signal including an alarm group code unique to the alarm system 1a is transmitted to the device 100-1. The same applies to the other alarm systems 1b to 1d.

  Moreover, in the example of FIG. 1, the interlocking group is formed so that mutual communication is possible between the alarm devices 100-1 to 100-4 provided in the alarm systems 1a to 1d, and the interlock system is formed as a whole. A communication path 12 according to a predetermined second communication protocol is provided between the alarm devices 100-1 to 100-4, and an interlock configured by a plurality of alarm systems by transmitting and receiving a signal including a predetermined interlock group code. Enable communication within the group.

  For example, the alarm device 100-1 is abnormal based on the temperature that is the observation value indicated by the data of the temperature observation signal transmitted by any of the temperature observation chips 10-11 to 10-14 belonging to its own alarm system (alarm system 1a11a). Is detected and the fire alarm indicating the interlock source is output, the abnormal interlock signal is transmitted to the alarm devices 100-2 to 100-4 of the other alarm systems 1b to 1d, and the alarm device 100-2 that has received this signal ˜100-4, a fire alarm indicating the interlocking destination is output. In this way, the present invention links a plurality of alarm systems including at least one alarm system that manages one or a plurality of temperature observation chips 10 with one alarm device 100.

  Hereinafter, when the alarm devices 100-1 to 100-4 and the temperature observation chips 10-11 to 10-44 are not distinguished from each other, they are referred to as the alarm device 100 and the temperature observation chip 10.

  Here, managing a plurality of temperature observation chips 10 by the alarm device 100 means that a plurality of temperature observation chips 10 are allocated to one alarm device 100 provided in the alarm system, and any one of the allocated plurality of temperature observation chips 10 is selected. This means that the alarm device 100 receives the temperature observation signal transmitted by, and outputs a fire alarm when an abnormality is detected based on the temperature that is the observation value indicated by the data of the temperature observation signal.

  Further, interlocking a plurality of alarm systems means that the alarm device 100 of one alarm system receives a temperature observation signal transmitted from any of the plurality of temperature observation chips 10 managed by the alarm device 100, and the temperature observation is performed. When an abnormality is detected based on the temperature that is the observed value indicated by the signal data and a fire alarm indicating the interlock source is output, a fire alarm is output and an abnormal interlock signal is generated. A fire alarm indicating the interlock destination is output when an alarm interlock signal transmitted from one of the other alarm system alarms is output. To output.

  In the following explanation, an interlocking system in which alarm devices 100-1 to 100-4 form an interlocking group is taken as an example. However, the interlocking group may be formed by a part of the alarm systems, or the interlocking group. The alarm systems A1 to A4 may be used as independent systems.

  Moreover, the smoke density observed by the alarm devices 100-1 to 100-4 with the smoke density sensor is an index indicating the smoke density observed based on a detection signal of a smoke detector (described later) which is an example of the smoke density sensor. Smoke density information, which is referred to as “smoke density” or “observed smoke density”.

  The temperature observed by the temperature observation chips 10-11 to 10-44 is temperature information that is an index indicating the temperature observed based on a detection signal from a temperature detection element (described later). It is called “temperature that is value”.

  The system shown in FIGS. 1 and 2 is provided with four alarm systems that combine such an alarm device 100 and a temperature observation chip 10 that is assigned and managed thereto.

(Alarm placement)
The alarm device 100 with a smoke concentration sensor provided in the alarm system is arranged in a predetermined monitoring area, and monitors the smoke density in the entire monitoring area, and outputs a fire alarm when an abnormality is detected from the smoke density as an observation value. To do.

  For this reason, the alarm device 100 is arranged at a position where it can efficiently receive the hot air flow assumed when a fire occurs in the monitoring area. For example, when the alarm device 100 is installed using one room of a house as a monitoring area, the alarm device 100 is arranged at a substantially center of the ceiling surface of the room serving as the monitoring area or on a wall surface close to the ceiling surface within a predetermined distance, for example, 50 cm.

Here, the monitorable area of the alarm device 100 is a three-dimensional space corresponding to a predetermined sensing area, and corresponds to, for example, the sensing area of a smoke-type residential fire alarm device. Smoke-type fire alarms for homes correspond to the two types of sensitivity of smoke-type fire detectors defined by legal installation standards, and the detection area is, for example, when the installation height is less than 4 meters like a house 150 m ² .

Of residential rooms, 4.5 mats, 6 mats, 8 tatami, are mostly sensitive area 150m less than ² Kemurishiki residential disaster alarm device one as of 10 mat, a single alarm in each room Will be installed.

  In this description, the area monitored by the alarm device 100 installed in this way is referred to as the monitoring area of the alarm device 100, and FIG. 2 shows the case where the entire room in the house 14 is the monitoring area. .

(Placement of temperature observation chip)
In each alarm system of the present embodiment, one or a plurality of temperature observation chips 10 are arranged and assigned to one alarm device 100 with a smoke concentration sensor for management. For this reason, the one or more temperature observation chips 10 assigned to the alarm device 100 are arranged in a predetermined local area within the monitoring area of the alarm device 100 that manages them and within the communication range of the alarm device 100, and within a predetermined detection area. Observe the temperature. The communication range of the alarm device 100 refers to a range in which a signal transmitted from the temperature observation chip 10 allocated and managed by the alarm device 100 falls within a communication distance that can be effectively received by the alarm device 100. The detection area of one temperature observation chip 10 is narrower than the monitoring area of one alarm device 100 to which it is assigned (communication with).

  The temperature observation chip 10 is arranged in a predetermined local area in the house, for example, inside or outside of a device using fire, inside or outside surface of the device serving as a heat source, inside or outside surface of the container, or the vicinity thereof. Examples of the predetermined local area include a stove and a litter box installed in a kitchen stove, a kitchen, a living room, and a child room, a bed in a main bedroom for sleeping cigarettes, and a television set in the living room.

(Overall monitoring and local monitoring)
FIG. 2 is an explanatory view showing an installation example of the alarm system according to the present invention in a house room. 2, for example, an alarm device 100-1 with a smoke concentration sensor and temperature observation chips 10-11 to 10-14 corresponding to the first alarm system 1a of FIG. In other rooms, alarm devices 100-2 to 100-4 and temperature observation chips 10-21 to 10-44 are installed corresponding to the alarm systems 1b to 1d, but the illustration is omitted.

  The alarm device 100-1 is installed on the upper part of the wall surface close to the ceiling surface within a predetermined distance, for example, 50 cm from the ceiling surface. The alarm device 100-1 has the entire room as the monitoring area A, and is installed near the ceiling at the center of the room, for example, at a position where the thermal air flow caused by the fire generated in the monitoring area A is efficiently received. Monitor.

  The temperature observation chip 10-11 is disposed as a predetermined local area in the monitoring area A, for example, in the trash can 15, and monitors the abnormality of the local area A1 indicated by the dotted line including the trash can 15 and its periphery. Further, the temperature observation chip 10-12 is arranged as a predetermined local area, for example, on the back side of the television 16, and monitors the abnormality of the local area A2 indicated by a dotted line including the television 16 and its periphery. Furthermore, the temperature observation chips 10-13 and 10-14 are installed on the wall surface as predetermined local areas, and monitor the abnormalities of the local areas A3 and A4, respectively.

[Configuration of temperature observation chip]
(Appearance and structure of temperature observation chip)
FIG. 3 is an explanatory diagram showing the appearance of the temperature observation chip provided in FIG. 1. FIG. 3A is a plan view, FIG. 3B is a cross section of the internal structure, and FIG. 3C is a bottom view. Show.

  In FIG. 3, the temperature observation chip 10 includes a disk-shaped cover 18 that is opened at one end (lower side of FIG. 3B) molded with, for example, a synthetic resin, and a base 20 that is attached to the opening side of the cover 18. The circuit board 22 is housed inside the housing. A seal 45 indicating a number for identifying the ID of the temperature observation chip 10 is attached to the surface of the cover 18 as necessary.

  A button battery 24 is housed between the circuit board 22 and the base 20, a positive terminal fitting 32 is in contact with the positive electrode of the button battery 24, and a negative electrode on the end face located on the circuit board 22 side of the button battery 24 is connected to the negative electrode. The terminal fitting 30 is in contact.

  The button battery 24 is fixed by attaching a battery lid 26 to the opening hole of the base 20. The battery lid 26 can be locked by forming L-shaped fitting protrusions at two opposite locations on the inner periphery of the outer periphery and inserting and turning the L-shaped fitting protrusions into the fitting notches formed in the opening of the base 20. The battery cover 26 is formed with a fitting groove 28 for fitting a coin or the like for a turning operation when the button battery 24 is attached or detached.

  A control chip 38 and a communication chip 40 are mounted on the upper side surface of the circuit board 22, and a temperature detection element 36 is mounted inside the slit (opening) 42 formed in the cover 18 at a position where outside air flows. ing. As the temperature detection element 36, an appropriate temperature detection element such as a thermistor whose resistance value changes according to the temperature of the observation point (heat sensitive part) is used.

  In addition, an LED 46 is mounted on the circuit board 22, and a display window 44 using a transparent resin or the like is disposed on the cover 18 side.

  A mounting sheet 34 is provided on the outer periphery of the surface of the base 20. The attachment sheet 34 is a magnetic sheet or an adhesive sheet, and can be easily attached and arranged on the attachment surface of the device or place to be monitored. In addition, an attachment means and a method are arbitrary, In addition to the attachment sheet | seat 34, appropriate means, such as a hook, a clip, a string, can be provided as needed.

(Functional configuration of temperature observation chip)
FIG. 4 is a block diagram showing an outline of a functional configuration of the temperature observation chip. The temperature observation chip 10 includes a temperature detection element 36, a temperature observation control unit 48, and a communication unit 50 connected to an antenna 52, and operates by receiving power supply from the button battery 24 shown in FIG. The temperature observation control unit 48 is a function realized by executing a program, for example. The hardware includes a control chip 38 shown in FIG. 3, and a computer circuit or a wired logic circuit having a CPU, a memory, various input / output ports, and the like.

  The communication unit 50 includes the communication chip 40 of FIG. 3 and transmits / receives signals to / from the alarm device 100-1 according to a predetermined first communication protocol. As the first communication protocol, for example, a short-range communication protocol for a sensor network using a frequency of 900 MHz assigned to RFID (Radio Frequency IDentification “abbreviation of individual identification by radio wave”), that is, 950 to 957 MHz is used. This signal has a format including a transmission source code that is an identifier indicating the transmission source, an alarm group code (alarm system identification code), a control command, temperature data, and the like. As a transmission source code, for example, a serial number is used.

  As described above, for example, the thermistor is used as the temperature detection element 36, and in this case, a voltage detection signal corresponding to a change in resistance value due to temperature is output to the temperature monitoring control unit 48.

  The temperature observation control unit 48 observes the temperature at the observation point based on an instruction from the alarm device 100 and transmits a temperature observation signal including data indicating the temperature that is the observed value to the alarm device 100. That is, the temperature observation control unit 48 detects the temperature based on the detection signal from the temperature detection element 36 when detecting effective reception of the batch AD conversion signal transmitted from the alarm device 100 at predetermined intervals via the communication unit 50. When the polling signal specifying the own address (for example, the own transmission source code) that is observed and subsequently transmitted is effectively received, the communication unit 50 transmits the temperature observation signal including the data indicating the temperature as the observation value. To transmit to the alarm device 100.

  In this way, by observing and transmitting the temperature according to the instruction from the alarm device 100, collision (transmission failure) of temperature observation signals transmitted from the plurality of temperature observation chips 10 can be avoided. In addition, the temperature observation timings of the plurality of temperature observation chips 10 can be matched.

  Note that the temperature observation control unit 48 voluntarily observes the temperature every predetermined period and transmits a temperature observation signal including data indicating the temperature as an observation value, regardless of an instruction from the alarm device 100. May be. In this case, carrier sensing is performed so as not to overlap with the transmission of temperature observation signals from other temperature observation chips, and transmission is performed at a timing with no carrier.

  Further, the alarm system of the present invention includes a temperature observation chip 10 having such a temperature detection constant element 36 and a smoke detector, acquires smoke concentration that is a predetermined local observation value, and smoke that is the observation value. A smoke observation chip that transmits a smoke concentration observation signal including data indicating the concentration to the alarm device 100 may be provided in a mixed manner. As will be described below, when the alarm device 100 receives a temperature observation signal or smoke concentration observation signal from either the temperature observation chip or the smoke observation chip of its own group, the alarm device 100 detects an abnormality sign or abnormality based on the temperature observation signal or smoke concentration observation signal. To output a predetermined abnormality forecast warning and fire alarm. Then, the alarm device 100 transmits the abnormality forecast interlocking signal and the abnormality interlocking signal to the other alarm devices 100, and the other alarm device 100 that receives the alarm forecast alarm output and the fire alarm as the interlocking destination.

[Alarm configuration]
FIG. 5 is a block diagram showing a schematic configuration of the alarm device 100-1 with a smoke density sensor unit. 5 shows the alarm device 100-1 of the alarm system 1a, the configurations of the alarm devices 100-2 to 100-4 of the other alarm systems 1b to 1d are the same.

(Functional configuration of alarm device)
In FIG. 5, the alarm device 100-1 includes an alarm control unit 102, a first communication unit 104 connected to an antenna 106, a second communication unit 108 connected to an antenna 110, a smoke detector 112, a notification unit 114, and an operation unit 116. And is operated by a power source (not shown) such as a battery power source.

  The alarm control unit 102 is a function realized by executing a program, for example. As the hardware, a CPU, a memory, a computer circuit having various input / output ports, and the like are used.

  The first communication unit 104 receives an instruction from the alarm control unit 102, and transmits and receives signals to and from the temperature observation chips 10-11 to 10-14 according to the first communication protocol. As in the case of the communication unit 50 of the temperature observation chip 10, this signal has a format including observation results such as a transmission source code indicating a transmission source, an alarm group code, and temperature data. The aforementioned temperature observation signal corresponds to this signal. The alarm group code is a code unique to the alarm system (in this case, 1a). By using such an alarm group code, a communication message such as a temperature observation signal can be transmitted to the other adjacent alarm systems 1b to 1d. Can avoid interference.

  The second communication unit 108 receives an instruction from the alarm control unit 102 and transmits / receives an interlocking signal to / from alarm devices 100-2 to 100-4 of other alarm systems according to a predetermined second communication protocol. The interlocking signal is assigned as an identifier unique to each alarm device 10, and is a transmission source code used as a code indicating the transmission source when transmitting the signal, an interlocking group code indicating the interlocking group to which the self belongs (interlocking group identification) Code) and an event code indicating an event such as an abnormality. The alarm device 100-1 forms an interlocking group that transmits and receives interlocking signals with the alarm devices 100-2 to 100-4 according to the second wireless communication protocol, and the interlocking group code is a code unique to this group. By using such interlocking group codes, it is possible to avoid interference of interlocking signals with other adjacent groups.

  In the case of transmission / reception using the second communication protocol in Japan, for example, STD-30 (a wireless equipment standard for a low power security system radio station) or STD- known as a standard for a specific low power radio station in the 400 MHz band. Conforms to T67 (standard for low-power radio station telemeter, telecontrol and data transmission radio equipment).

  The smoke detector 112 is an example of a smoke density sensor, has a known scattered light type smoke detector structure, and includes a light emitting portion and a light receiving portion. The smoke detector 112 is provided with a light emission drive circuit (not shown), and the light emission unit using the infrared LED is intermittently driven to emit light at a predetermined cycle according to an instruction from the alarm control unit 102. The smoke detector 112 is provided with an amplifier circuit (not shown), amplifies the received light signal of the scattered light received by the light receiver such as a photodiode, and outputs a smoke concentration detection signal to the alarm controller 102.

  The notification unit 114 includes, for example, a speaker, an LED, and respective drive circuits, and outputs an alarm sound from the speaker according to an instruction from the alarm control unit 102 as needed, and displays an alarm with the LED. The operation unit 116 includes various switches such as an alarm stop switch that receives an operation for stopping an alarm sound and / or an alarm display.

  The alarm control unit 102 is a function realized by executing a program of the CPU, and performs fire alarm control. The fire alarm control of the alarm control unit 102 includes control for detecting an alarm based on the temperature that is the observation value indicated by the data of the temperature observation signal transmitted from the temperature observation chip 10, and the smoke concentration that is the own observation value. There is a control to detect an alarm and alarm.

(A Alarm control by temperature, which is the observed value of the temperature observation chip)
(Temperature observation control)
The alarm control unit 102 instructs the first communication unit 104 to perform batch AD conversion according to the first communication protocol from the first communication unit 104 to the temperature observation chips 10-11 to 10-14 of the alarm system 1a at predetermined intervals. Control to transmit a signal is performed, and the temperature observation chips 10-11 to 10-14 that have received the signal are caused to perform a temperature observation operation.

  Subsequently, the alarm control unit 102 instructs the first communication unit 104 to send a polling signal designating the address of the temperature observation chip 10, for example, a transmission source code that is an identifier assigned to each temperature observation chip 10 to the first communication. Temperature observation including the data indicating the temperature that is the observed value from the temperature observation chip 10-11 to 10-14 that has received the polling signal is controlled to be transmitted from the unit 104 to the temperature observation chip 10-11 to 10-14 Send signals sequentially.

  Note that, regardless of the instruction from the alarm device 100-1, the temperature observation chip 10 voluntarily observes the temperature every predetermined period and transmits a temperature observation signal including data indicating the temperature as an observation value. In this case, the control for observing the temperature by transmitting the batch AD conversion signal and the polling signal described above becomes unnecessary.

(Fire alarm control)
The alarm control unit 102 detects an abnormality when the temperature that is the observation value indicated by the data of the temperature observation signal received from the temperature observation chip 10 is equal to or higher than the threshold temperature Tth, for example, Tth = 75 ° C. Control to output a fire alarm indicating the origin. The abnormality detection may be performed when a temperature change rate is obtained based on the temperature observed over a plurality of times and the temperature change rate (increase rate) is equal to or higher than a predetermined change rate threshold. In addition, the abnormality may be detected by various calculations based on the temperature.

  As an example of a fire alarm indicating an interlocking source that is output from the notification unit 114 by the alarm control unit 102, an abnormality is detected based on the temperature of the temperature observation chip 10-11. Please repeat the voice message “Please confirm” and turn on the LED, for example. Here, “No. 1” is information for specifying the temperature observation chip 10-11 that has detected a fire.

  That is, the temperature observation signal transmitted from the temperature observation chip 10 to the alarm device 100 includes a code (transmission source code) for specifying the temperature observation chip 10 of the transmission source. And the code | symbol which identifies each temperature observation chip | tip and the voice message content of a fire alarm are linked | related within the memory of the alarm device 100 by the initial setting etc. FIG. For this reason, the temperature observation chip that has transmitted the temperature observation signal including the temperature at which the abnormality is detected as described above is recognized, and in response, the voice message of the fire alarm includes, for example, information indicating the installation location. It can be.

  In addition, when the alarm control unit 102 outputs a disaster alarm from the notification unit 114, the alarm control unit 102 generates an abnormal interlocking signal in accordance with the second communication protocol and instructs the second communication unit 108 to generate another alarm system. The alarm device 100-2 to 100-4 is controlled to transmit the abnormality interlocking signal, and the alarm device 100-2 to 100-4 of the other alarm system that has received the abnormality interlocking signal receives a fire alarm indicating the interlocking destination. Output. In this case, as a fire alarm indicating the interlocking destination, for example, a voice message such as “Please confirm that a fire has been detected at another place in PPP” is repeatedly output from the speaker and the LED is blinked, for example.

  When the alarm control unit 102 detects effective reception of the abnormal interlocking signal transmitted by any of the alarm devices 100-2 to 100-4 of the other alarm systems via the second communication unit 108, the notification unit 112 Control to output a fire alarm (alarm sound and / or alarm display) indicating the link destination from.

  “Detecting effective reception of signal” means that the alarm group code or the interlocking group code included in the received signal matches the alarm group code or the interlocking group code registered in advance in its own memory as the receiving device. Recognized as a signal addressed to the self (a signal from the smoke monitoring chip 10 under its control or a signal within the interlocking group to which the self belongs), and further recognized that there is no abnormality in the signal content Means that Hereinafter, such effective reception may be simply referred to as reception.

(B Alarm control based on smoke concentration, which is its own observation value)
The alarm control unit 102 is abnormal when the smoke concentration, which is an observation value observed at every predetermined period based on the detection signal from the own smoke detector 112, is a predetermined threshold smoke concentration Sth, for example, Sth = 15% / m or more. And a fire alarm indicating the interlocking source is output from the notification unit 114. As a fire alarm in this case, for example, a voice message such as “Please confirm that a fire has been detected” is repeatedly output from the speaker and the LED is turned on, for example.

  In addition, when an abnormality is detected from the smoke concentration, which is an observed value observed at predetermined intervals based on the detection signal from the smoke detector 112, and a disaster alarm is output from the notification unit 114, the second communication protocol is set accordingly. The abnormal interlocking signal is generated, the second communication unit 108 is instructed, the abnormal interlocking signal is transmitted to the alarm devices 100-2 to 100-4 of other alarm systems, and the abnormal interlocking signal is effectively received. The fire alarm indicating the interlocking destination is output by the alarm devices 100-2 to 100-4 of the other alarm systems. In this case, for example, a fire alarm indicating the interlocking destination is repeatedly outputted by a voice message such as “Please confirm that a fire has been detected in another place” from the speaker and blinking the LED, for example.

  Note that the content of the voice message when the abnormality is detected based on the temperature that is the observation value of the temperature observation chip 10 and when the abnormality is detected based on the smoke concentration that is the observation value of the smoke detector 112 is the same. good.

(Abnormality recovery control)
The alarm control unit 102 outputs a fire alarm indicating an interlocking source from the notification unit 114, and then transmits the temperature observation signal that is a source of the fire alarm. In this case, the alarm device 100-1 performs the fire alarm. When the temperature, which is the observation value indicated by the data of the temperature observation signal received from the temperature observation chip 10-11 that is the source of the output, continues below a threshold temperature Tth = 75 ° C. for a predetermined time, for example, or continuously for a predetermined number of times. In this case, abnormality recovery (abnormality detection state has been resolved) is detected, and the fire alarm output indicating the interlocking source caused by the abnormality detection from the notification unit 114 is stopped and the second communication protocol is followed. Control that generates an abnormality recovery interlock signal, instructs the second communication unit 108, and transmits the abnormality recovery interlock signal to the alarm devices 100-2 to 100-4 of other alarm systems. There, this alarm 100-2 to 100-4 of the other alarm systems that received the stops fire alarm output (warning sound and / or alarm display) indicating the interlocking destination due to the same abnormal detection.

  When the alarm control unit 102 detects the effective reception of the abnormality recovery interlocking signal transmitted by any of the alarm devices 100-2 to 100-4 of the other alarm systems via the second communication unit 108, the alarm control unit 102 Control to stop the fire alarm output (alarm sound and / or alarm display) indicating the interlocking destination from 114 is performed.

  In addition, when it is set as the content which does not specify the temperature observation chip 10 which becomes a cause about a fire alarm, for example, when it is set as the warning message which does not include "No. 1" of the interlocking source and "No. In this case, the alarm device 100 outputs an alarm based on the fact that an abnormality is detected based on the temperature that is the observation value indicated by the data of the temperature observation signal that is effectively received from the plurality of temperature observation chips 10 under its control. If an interlocking signal is transmitted, a fire alarm sound and / or an alarm display is output until an abnormality recovery is detected based on the temperature degree observation signals received from all of the temperature observation chips 10 that have caused the interlocking signal. Do not send stop / fire recovery interlock signal.

  In addition, the alarm control unit 102 detects an abnormality from the smoke concentration, which is an observed value observed every predetermined period based on the detection signal from its own smoke detecting unit 112, and outputs a fire alarm indicating the interlocking source, then the observed value For example, when the state where the smoke concentration is lower than the threshold temperature Sth = 15% / m continues for a predetermined time, or for example, continues for a predetermined number of times, abnormality recovery (abnormality detection state has been eliminated) is detected, and the interlock source is determined. The fire alarm output (alarm sound and / or alarm display) is stopped and an abnormality recovery interlock signal is generated in accordance with the second communication protocol, and the second communication unit 108 is instructed to send the error recovery interlock signal to the other Control is performed to transmit to the alarm devices 100-2 to 100-4 of the alarm system, and the fire alarm output (alarm sound and alarm) indicating the link destination is sent to the alarm devices 100-2 to 100-4 of other alarm systems that have received the control. / Or alarm display) the stops.

(Alarm stop control)
When the alarm control unit 102 detects the alarm stop operation received by the alarm stop switch of the operation unit 116 during the output of the fire alarm as the interlock source, the alarm control unit 102 outputs the fire alarm output (alarm sound and / or Or alarm display), and generates an alarm stop interlocking signal in accordance with the second communication protocol and instructs the second communication unit 108 to send the alarm stop interlocking signal to the alarm devices 100-2 to 100-2 of other alarm systems. The control which transmits to 100-4 is performed, and the alarm device 100-2 to 100-4 of the other alarm system which received this stops the fire alarm output (alarm sound and / or alarm display) which shows an interlocking destination.

  When the alarm control unit 102 detects the effective reception of the alarm stop interlocking signal transmitted from any of the alarm devices 100-2 to 100-4 of the other alarm systems via the second communication unit 108, the alarm control unit 102 Control to stop the fire alarm output (alarm sound and / or alarm display) indicating the interlocking destination from 112 is performed.

(Alarm system operation)
FIG. 6 is an explanatory diagram when an abnormality occurs in the warning area A of the alarm device 100-1 outside the local areas A1 to A4 of the temperature observation chips 10-11 to 10-14 in the alarm system 1a shown in FIG. It is.

When the fire F occurs in the warning area A of the alarm device 100-1, the hot air current rises, hits the ceiling surface, and spreads laterally along the ceiling surface. Since this hot air flow 19 passes through the alarm device 100-1 and diffuses, the alarm device 100-1 with a smoke concentration sensor efficiently receives the hot air flow, and the smoke density as an observation result rises, and the threshold smoke density Sth. In the above cases, an abnormality is detected and a fire alarm is output.

  On the other hand, the temperature observation chips 10-11 to 10-14 transmit a temperature observation signal including data indicating the temperatures that are the observation values of the local regions A1 to A4 to the alarm device 100-1, and the alarm device 100-1 receives the temperature observation signal effectively. Since the abnormality is monitored based on the temperature that is the observed value indicated by the data of the temperature observation signal, and the thermal air flow 18 due to the fire F is not directly received, the temperature that is the observed value in the local regions A1 to A4 is equal to or higher than the threshold temperature Tth It takes time to become, and the time delay until abnormality is detected becomes large. In this way, the alarm device 100-1 monitoring the entire monitoring area A with respect to the fire F that is missed only by the temperature observation chips 10-11 to 10-14, causes an early increase in smoke density associated with the fire F. Can reliably detect and output a fire alarm.

  FIG. 7 is an explanatory diagram when a fire F occurs in the trash can 15 in which the temperature observation chip 10-11 is installed. When the fire F occurs in the garbage can 15, the fire F is an abnormality in the local region A1 of the temperature observation chip 10-11, and therefore the alarm device 100-1 receives the temperature observation signal effectively received from the temperature observation chip 10-11. When the temperature, which is the observation value indicated by the data, is equal to or higher than the threshold temperature Tth, an abnormality is detected and a fire alarm is output.

  In this case, the thermal air flow 18 due to the fire F in the waste bin 15 is weak in the initial stage of the fire F, and the smoke density, which is the observation value of the alarm device 100-1 with the smoke density sensor, rises above the threshold smoke density Sth and is abnormal. It will be detected after the fire has spread further, and it will take some time to detect the alarm and alarm. As described above, the temperature observation chips 10-11 to 10-14 take time to detect with the alarm device 100-1 alone, or the temperature rises associated with the abnormalities in the local regions A1 to A4 that are likely to be detected at an early stage. The temperature observation signal including the data indicating the temperature that is the observation value is transmitted to the alarm device 100-1, and the temperature that is the observation value indicated by the data of the temperature observation signal that is effectively received by the alarm device 100-1 is transmitted. An abnormality can be detected based on this and a fire alarm can be output.

[Abnormality detection by two-step judgment]
Next, as another embodiment of the alarm system according to the present invention, two levels of threshold values are used from the temperature that is the observed value of the temperature observation chip 10 and the smoke density that is the observed value of the alarm device 100 with the smoke concentration sensor. An alarm system that detects abnormal signs and abnormalities will be described. However, this is only an example, and the abnormality sign and abnormality two-stage determination are not limited to the two-stage threshold described here.

(Temperature observation chip)
The temperature observation chip 10-11 is basically the same as the configuration of FIG. The same applies to the other temperature observation chips 10-12 to 10-44.

(Alarm)
The alarm device 100-1 basically has the same configuration as that shown in FIG. 5, but the processing for detecting an abnormality by the alarm control unit 102, the control associated with the abnormality detection, and a part of the control for alarming the abnormality are different. The same applies to the other alarm devices 100-2 to 100-4.

  In the abnormality alarm control by the alarm control unit 102 when abnormality is detected by the two-stage threshold, abnormality precursors and abnormality are detected from the temperature that is the observation value indicated by the data of the temperature observation signal effectively received from the temperature observation chip 10. There is control that outputs an alarm and control that outputs an alarm by detecting an abnormal sign and abnormality from the smoke concentration that is the self-observed value.

(A Control based on temperature, which is the observed value of the temperature observation chip)
For example, when the temperature that is the observation value indicated by the data of the temperature observation signal that is effectively received from the temperature observation chip 10 is equal to or higher than the first threshold temperature Tth1 (for example, Tth1 = 65 ° C.), the alarm control unit 102 is abnormal such as overheating. Control is performed to detect an abnormality sign as a sign and to output an abnormality forecast warning from the notification unit 114. In this case, for example, a warning message such as “Please confirm that PPP No. 1 is overheated” is repeatedly output from the speaker and the LED blinks, for example.

  Further, the alarm control unit 102 detects the abnormal sign, and then the second threshold temperature Tth2 (the temperature that is the observation value indicated by the data of the temperature observation signal that is effectively received from the temperature observation chip 10-11 is higher than the first threshold temperature ( For example, when the temperature is equal to or higher than Tth2 = 75 ° C., control is performed to detect an abnormality and output a fire alarm from the notification unit 114. As a fire alarm in this case, for example, a voice message such as “Please confirm that a fire has been detected at PPP No. 1” is repeatedly output from the speaker and the LED is blinked, for example.

  Further, when the alarm control unit 102 detects an abnormality sign or abnormality based on the temperature that is the observation value indicated by the data of the temperature observation signal that is effectively received from the temperature observation chip 10-11, the second communication protocol corresponds to each. The abnormal forecast interlocking signal or the abnormal interlocking signal is generated in accordance with the instruction, the second communication unit 108 is instructed, and the abnormal forecast interlocking signal or the abnormal interlocking signal is transmitted to the alarm devices 100-2 to 100-4 of other alarm systems. The alarm device 100-2 to 100-4 that has received the abnormal forecast interlocking signal or the abnormal interlocking signal is caused to output an abnormal forecast alarm or a fire alarm indicating the interlock destination.

  In this case, for example, “Please check that the number 1 in another location is overheated” or “Detect a fire in the number 1 in another location. A voice message such as “Please confirm” is repeatedly output from the sppiece and the LED is turned on or blinking, for example.

  Further, the alarm control unit 102 has detected the effective reception of the abnormal forecast interlocking signal or the abnormal interlocking signal transmitted by any of the alarm devices 100-2 to 100-4 of other alarm systems via the second communication unit 108. In such a case, control is performed to output an anomaly forecast alarm or a fire alarm indicating the link destination from the notification unit 114. Other than this, the control is the same as in the case of FIG.

  In this way, when the abnormality warning is output from the alarm device 100, if there is a person in the house 14, the person hears the abnormality prediction warning and knows the abnormality sign (predictor), for example, specified by the alarm content Go to the location where the temperature observation chip 10 is installed, check the situation, and if the abnormal warning alert content specifies the temperature observation chip 10 installed in the stove, for example, know that the stove is overheated and take measures such as stopping the operation It becomes possible to do.

  In addition, when a fire alarm is output before the at-home person copes with the abnormality forecast alarm output from the alarm devices 100-1 to 100-4, the person installs the temperature observation chip 10 specified by the alarm content. It is possible to check the situation by going to a place, and to deal with it quickly and appropriately by initial fire extinguishing, etc., and take appropriate evacuation action.

(B Control based on smoke density, which is the observed value)
The alarm control unit 102, when the smoke concentration, which is an observation value observed every predetermined period based on the detection signal from the smoke detector 112, is equal to or higher than a first threshold smoke concentration Sth1 (for example, Sth1 = 10% / m), Control is performed to detect an abnormal sign as an abnormal sign and to output an abnormal forecast alarm indicating the interlocking source from the notification unit 114. In this case, for example, a warning message such as “please detect the danger of PPP fire” is output repeatedly from the speaker and the LED is turned on, for example.

  Further, the alarm control unit 102 detects an abnormal sign from the smoke concentration, which is an observation value observed at predetermined intervals based on the detection signal from the smoke detecting unit 112, and outputs an abnormal forecast alarm from the notification unit 114, and then detects the abnormal predictive alarm. When the smoke density, which is an observation value observed at predetermined intervals based on the detection signal from the smoke part 112, is equal to or higher than the second threshold smoke density Sth2 (eg, Sth2 = 15% / m) higher than the first threshold smoke density Sth1 Then, control is performed to detect an abnormality and to output a fire alarm indicating the interlocking source from the notification unit 114. In this case, as a fire alarm, for example, a voice message such as “Please confirm that a fire has been detected” is repeatedly output from the speaker and the LED is turned on, for example.

  In addition, when the alarm control unit 102 outputs an abnormal forecast alarm or alarm indicating an interlock source from the notification unit 114, the alarm control unit 102 generates an abnormal forecast interlock signal or an abnormal interlock signal according to the second communication protocol in accordance with each, 2 Instructs the communication unit 108 to perform control to transmit the abnormal forecast interlock signal or the abnormal interlock signal to the alarm devices 100-2 to 100-4 of other alarm systems, and receives the abnormal forecast interlock signal or the abnormal interlock signal. The alarm devices 100-2 to 100-4 are caused to output an abnormality forecast alarm or a fire alarm indicating the interlocking destination.

  In this case, for example, “please detect fire risk at another location” or “PP detected a fire at another location”. Please repeat the voice message such as “Please do” and turn on or blink the LED. Other than this, the control is the same as that of the alarm control unit 102 in FIG.

  In this way, when the abnormality forecast warning is output from the alarm device 100 that is monitoring the entire monitoring area A, if there is a resident in the house 14, the person hears the abnormality forecast warning and signs of abnormality (predictor) Knowing the situation, it is possible to check the status of the monitoring area A and take necessary measures.

  In addition, when a fire alarm is output before the resident responds to the abnormal forecast alarm output from the alarm devices 100-1 to 100-4, the status of the monitoring area A is confirmed, and the initial fire extinguishing etc. And it becomes possible to cope appropriately and to take appropriate evacuation action.

[Other Embodiments of Temperature Observation Chip]
FIG. 8 is an explanatory view showing another embodiment of the temperature observation chip in the present invention. In the present embodiment, a cage-type protective frame 64 is formed so as to protrude above the cover 18 of the temperature observation chip 10, and the temperature detection element 36 mounted with a lead terminal on the circuit board 22 in the housing is protected by the protective frame 64. The temperature detecting element 36 is directly exposed to the outside air so that the temperature of the installation space can be efficiently observed.

  In order to efficiently observe the temperature of the space in which the temperature observation chip 10 is arranged, for example, a heat collecting plate may be arranged outside the cover 18 and the temperature detection element 36 may be provided there.

  Since the temperature observation chip 10 having the structure shown in FIG. 8 has a structure in which the temperature detecting element 36 is directly exposed to the outside air, the temperature observation chip 10 has a wider monitoring area than the temperature observation chip 10 shown in FIG. As shown in FIG. 2, when the object to be monitored is installed in, for example, the waste bin 15, the monitoring object is limited to a relatively narrow monitoring region centered on the internal space of the dust bin 15.

  FIG. 9 is an explanatory view showing another embodiment of the temperature observation chip according to the present invention in a sectional structure. In the present embodiment, the cover 18 is shown on the lower side and the base 20 is shown on the upper side, and a heat transfer member 66 using a metal having high thermal conductivity with the contact surface exposed to the outside is disposed on the cover 18. The temperature detection element 36 mounted on the circuit board 22 with lead terminals is housed in a recess formed inside the heat transfer member 66 and fixed with an adhesive 68 or the like in contact with the heat transfer member 66.

  The lower surface of the cover 18 on which the heat transfer member 66 is disposed is an attachment surface, and an attachment sheet 34 using a magnet sheet or an adhesive sheet is provided on the outer peripheral side of the attachment surface. The other structure is basically the same as that of the embodiment of FIG.

  According to the embodiment shown in FIG. 9, when the temperature observation chip 10 is arranged in a device or place to be monitored, the heat transfer member 66 provided on the cover 18 directly contacts the monitoring target and heats it. The temperature can be efficiently transmitted to the temperature detection element 36, and the temperature detection sensitivity can be increased.

  Further, in the temperature observation chip 10 having the structure shown in FIG. 9, the monitoring area observes the temperature of the monitoring object, for example, the television 16 itself shown in FIG. Therefore, the monitoring area is limited to the monitoring object itself.

  FIG. 10 is an explanatory view showing another embodiment of the temperature observation chip in the present invention. In the present embodiment, the signal line 70 is pulled out from the side surface of the cover 18, the temperature detecting element 36 is provided at the tip of the signal line 70, and the mounting pad 72 is provided on the temperature detecting element 36. An adhesive sheet or the like can be used as the mounting pad 72. The other structure is basically the same as that of the embodiment of FIG.

  According to such an embodiment of FIG. 10, the temperature can be observed by attaching the temperature detection element 36 using the attachment pad 72 at a place away from the temperature observation chip 10, and the device or place to be monitored can be monitored. Appropriate placement according to the situation is possible. For this reason, the monitoring region of the temperature observation chip 10 in FIG. 10 can be limited to a narrow range such as a monitoring object or a place where the temperature detection element 36 is arranged by the attachment pad 72.

  FIG. 11 is an explanatory view showing another embodiment of the temperature observation chip in the present invention. In the present embodiment, the signal line 70 is drawn from the side surface of the cover 18 in the same manner as in the embodiment of FIG. 8, but the probe 74 is provided at the tip of the signal line 70 and the temperature inside the tip of the probe 74 is set. A detection element 36 is provided. The other structure is basically the same as that of the embodiment of FIG.

  According to the embodiment of FIG. 9, the temperature detection element 36 is positioned by inserting the probe 74 at a location distant from the temperature observation chip 10. For example, the temperature that is difficult to see from outside the monitoring target is set as the monitoring region. It is possible to monitor the fire of a device in a standby state or in a use state by constantly turning on a power source such as a television or a personal computer.

[Modification of the present invention]
(Communication protocol)
In the above embodiment, communication between the alarm device and the temperature observation chip is in accordance with the first communication protocol, and communication between the alarm device is in accordance with the second communication protocol. It may be a separate channel. If it does in this way, it is not necessary to provide a 1st communication part and a 2nd communication part in an alarm device, and a structure can be simplified as one communication part.

(Correspondence between alarm device and temperature observation chip)
In the above embodiment, as shown in FIG. 2, a temperature observation chip is assigned to all alarm devices to form a plurality of alarm systems. However, an alarm with a smoke concentration sensor that is not assigned a temperature observation chip is provided. It is also possible to provide a warning system with only a warning device and receive a warning signal from another warning device to issue a warning warning.

(Communication form)
Communication between the alarm device and the temperature observation chip may not be performed wirelessly, or may be performed by wired communication or by appropriately mixing wired and wireless communication.

(Applications other than housing)
The above embodiment is applicable not only to residential use but also to monitoring temperature abnormalities for various uses such as buildings and offices.

(Other)
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.

10-11 to 10-44: temperature observation chip 36: temperature detection element 48: temperature observation control unit 50: communication unit 100-1 to 100-4: alarm device 102: alarm control unit 104: first communication unit 108: first 2 Communication unit 112: Smoke detection unit 114: Notification unit 116: Operation unit

Claims (4)

When it is placed in a predetermined monitoring area, the smoke density of the entire monitoring area is observed, and when an abnormality is detected based on the smoke density, which is the observed value, an abnormality alarm is output and temperature observation signal data received from the outside Alarm means for outputting an abnormality alarm when an abnormality is detected based on the temperature that is the observed value indicated by
A temperature observation unit that is installed at a predetermined local area in the predetermined monitoring area, observes the temperature of the predetermined local area, and transmits a temperature observation signal including data indicating a temperature that is an observation value;
An alarm system characterized by providing.   2. The alarm system according to claim 1, wherein the alarm means has a temperature that is an observation value indicated by data of the temperature observation signal received from any one or a plurality of the temperature observation means that is equal to or higher than a predetermined threshold temperature. In this case, an abnormality is detected and an abnormality alarm is output, and an abnormality alarm is detected and an abnormality alarm is output when the smoke concentration, which is an observation value of the entire monitoring area, is equal to or higher than a predetermined threshold temperature. Alarm system. The alarm system according to claim 1, wherein
The alarm means detects an abnormal sign when a temperature, which is an observation value indicated by data of the temperature observation signal received from one or a plurality of temperature observation means, is equal to or higher than a predetermined first threshold temperature. An abnormality forecast alarm is output, and when the temperature is equal to or higher than a predetermined second threshold temperature higher than the first threshold temperature, an abnormality is detected and an abnormality alarm is output.
Further, when the smoke concentration that is the observation value of the entire monitoring region is equal to or higher than the first threshold smoke concentration, an abnormality sign is detected and an abnormality forecast alarm is output, and the smoke concentration that is the observation value of the entire monitoring region is An alarm system that detects an abnormality and outputs an abnormality alarm when the second threshold smoke density is higher than the first threshold smoke density.   2. The alarm system according to claim 1, wherein the alarm means detects an abnormality based on a temperature that is an observation value indicated by data of the temperature observation signal received from any one or a plurality of the temperature observation means. Or, when an abnormality is detected based on the smoke concentration that is the observation value of the entire monitoring area, an abnormality alarm indicating the interlocking source is output and an abnormal interlocking signal is transmitted to the alarm means of another alarm system to indicate the interlocking destination An alarm system which outputs an abnormality alarm and outputs an abnormality alarm indicating an interlocking destination when an abnormality interlocking signal is received from an alarm means of another alarm system.

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