JP2014044604A - Alarm system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an alarm system which is capable of issuing an alarm by quickly and reliably determining local abnormality such as fire or overall abnormality such as fire in a monitoring area based on temperatures indicated by an observation result.SOLUTION: An alarm device 100-1 having a temperature sensor is disposed in a predetermined monitoring area A, and one or a plurality of temperature measuring chips 10-11 to 10-14 are installed in the same monitoring area A. The alarm device 100-1 detects abnormality on the basis of a temperature indicated by a temperature observation result of the whole monitoring area A and outputs a fire alarm. The temperature measuring chips 10-11 to 10-14 are disposed at predetermined local positions in the monitoring area A and make the alarm device 100-1 output a fire alarm if abnormality is detected on the basis of a temperature indicated by temperature observation results of local areas A1 to A4, by transmitting an abnormality detection signal to the alarm device 100-1.

Description

  The present invention relates to an alarm system for judging and alarming an abnormality such as a fire by a combination of an alarm device for monitoring the entire monitoring area and a temperature measuring chip for locally monitoring 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. 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 includes an alarm device and one or a plurality of temperature measurement chips assigned thereto, and is provided with a temperature measurement chip in a predetermined local area. Proposes an alarm system that detects an abnormality such as a fire when the temperature indicated is higher than a predetermined threshold temperature and sends an abnormality detection signal to the alarm device, and the alarm device receives the abnormality detection signal from the temperature measurement chip and notifies the alarm doing.

  According to such an alarm system, the temperature measuring chip can be used, for example, various heaters such as stoves and gas stoves, heat source equipment, its installation location, places where fire is used for smoking, especially in bed or bedroom where sleeping cigarettes are used. Furthermore, fires based on the temperature indicated by spot-observed temperature observation results by installing them in a predetermined local area such as scrap holders or other devices or places that are relatively likely to become a fire source or their vicinity. By detecting an abnormality such as a failure and sending an abnormality detection signal to an alarm device and quickly and reliably alarming an abnormality such as a fire that has occurred in a predetermined area, the user can be appropriately dealt with.

  However, in the alarm system composed of the temperature measurement chip and the alarm device, the temperature measurement 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 the plurality of temperature measurement 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 measurement chip in the monitoring area, if an abnormality such as a fire occurs in the area, a fire etc. to any temperature measurement chip detection area Although the abnormalities of the fire are expanded and an alarm such as a fire is detected and alarmed based on the observation result of the temperature measuring chip, there is still a problem that the time delay until the fire detection is increased.

It is an object of the present invention to provide an alarm system that can quickly and surely determine a local abnormality and an overall abnormality of a monitoring area based on a temperature indicated by an observation result and enable an alarm.

(Alarm system)
The present invention provides an alarm system,
When it is placed in a predetermined monitoring area, the temperature of the entire monitoring area is observed and an abnormality is detected based on the temperature indicated by the temperature observation result, an abnormality alarm is output, and an abnormality is detected when an abnormality detection signal is received from the outside. An alarm means for outputting an alarm;
A temperature measuring unit that is installed in a predetermined local area in a predetermined monitoring region, and that detects a temperature based on the temperature indicated by the temperature observation result by observing the temperature of the predetermined local region;
Is provided.

(Abnormality detection with a single threshold)
The temperature measuring means generates an abnormality detection signal and transmits it to the alarm means when the temperature indicated by the predetermined local temperature measurement result is equal to or higher than a predetermined threshold temperature,
The alarm means outputs an abnormality alarm when an abnormality detection signal is received from one or a plurality of temperature measuring means, and abnormal when the temperature indicated by the temperature measurement result of the entire monitoring area is equal to or higher than a predetermined threshold temperature. Is detected and an abnormal alarm is output.

(Abnormality detection by two-step judgment of temperature measuring means)
The temperature measuring means detects an abnormal sign when the temperature indicated by the predetermined local temperature observation result is equal to or higher than a predetermined first threshold temperature, and transmits an abnormal sign detection signal to the alarm means, indicating the predetermined local temperature observation result. 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 detection signal is transmitted to the alarm means,
The alarm means outputs an abnormal forecast alarm when an abnormal predictor signal is received from one or a plurality of temperature measuring means, and abnormal when an abnormal detection signal is received from either one or a plurality of temperature measuring means Output an alarm.

  The alarm means further detects an abnormality sign when the temperature indicated by the temperature observation result of the entire monitoring region is equal to or higher than a predetermined first threshold temperature, outputs an abnormality prediction alarm, and indicates the temperature indicated by the temperature observation result of the entire monitoring region. 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.

(Linked system)
The alarm means selects the interlock source when an abnormality detection signal is received from one or a plurality of temperature measuring means, or when an abnormality is detected based on the temperature indicated by the temperature observation result by observing the temperature of the entire monitoring area. When an abnormal interlock signal is output from the alarm means of another alarm system while an abnormal alarm signal is output from the alarm means of another alarm system. , Outputs an abnormal alarm indicating the link destination.

(Basic effect)
According to the present invention, the alarm means having a predetermined sensing area is arranged in a predetermined monitoring area in the three-dimensional space corresponding to the sensing area, and the temperature indicated by the temperature observation result of the entire monitoring area by the alarm means. When an abnormality is detected based on the above, for example, a fire alarm is output as an abnormality alarm, and when the abnormality is detected based on the temperature indicated by the temperature observation result of the predetermined local area by the temperature measuring means installed in the predetermined local area in the monitoring area. Since the abnormality detection signal is transmitted to the alarm device so that, for example, a fire alarm is output as an abnormality alarm, the monitoring area is monitored by combining the overall abnormality monitoring of the monitoring area by the alarm means and the spot-like abnormality monitoring by the temperature measuring means. It is possible to reliably detect and warn of abnormalities such as fire that occurred in the 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 measurement means can be used by, for example, various heaters such as various stoves and gas stoves, equipment using the heat source, its installation location, 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. Detects abnormalities based on the temperature indicated by the temperature observation result observed in a spot, sends an abnormality detection signal to an alarm means, and prompts and alerts abnormalities that occur in a predetermined local area to allow the user to deal appropriately. Can do.

(Effects of overall monitoring)
In addition, even if an abnormality occurs at a location away from the temperature measuring means arranged at a predetermined location, 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 measuring means)
Also, by monitoring the overall monitoring area for abnormalities using alarm means, it is possible to monitor the spot-like abnormalities by arranging the temperature measuring 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 measuring 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 measuring 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 temperature measuring means)
Also, since an abnormality is detected based on the temperature indicated by the temperature observation result of the temperature measuring means and an abnormality detection signal is transmitted to the alarm means, the abnormality is detected based on the temperature indicated by the temperature observation result observed on the alarm means side. No processing is required, and the processing load on the alarm means side can be reduced.

(Effects of two-step judgment)
Further, the temperature measuring means sets the threshold temperature for detecting the temperature abnormality in two steps, high and low, detects an abnormality sign indicating an abnormality sign such as overheating above the lower first threshold temperature, and outputs an abnormality 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 temperature in two stages, high and low, detects an abnormal sign indicating an abnormal sign such as overheating above the lower first threshold temperature, and outputs an abnormal forecast alarm. By detecting an abnormality at the second threshold temperature or higher and outputting an abnormality alarm, the user can recognize an abnormality sign at an early stage and appropriately deal with the abnormality prediction alarm issued before the abnormality alarm.

(Effect of interlocking alarm system)
Moreover, since one alarm system is formed by one alarm means and one or a plurality of temperature measurement means assigned thereto, and a plurality of the alarm systems can be provided, for example, can be arranged in each room. 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 measurement chip Block diagram showing schematic configuration of temperature measurement chip Block diagram showing the schematic configuration of the alarm Explanatory diagram showing the occurrence of an abnormality that is subject to overall monitoring of the monitoring area Explanatory drawing showing the case where a local abnormality occurred Explanatory drawing which showed other embodiment of the temperature measurement chip | tip. Explanatory drawing which showed other embodiment of the temperature measurement chip | tip. Explanatory drawing which showed other embodiment of the temperature measurement chip | tip. Explanatory drawing which showed other embodiment of the temperature measurement chip | tip.

[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 temperature sensor and a plurality of temperature measurement chips.

  The alarm device 100 (100-1 to 100-4) with a temperature sensor uses a predetermined three-dimensional space as a monitoring area and monitors a predetermined abnormality such as a fire. The alarm device 100 outputs an abnormality alarm when the temperature of the entire monitoring region is observed by its own temperature sensor and detects an abnormality of the temperature indicated by the temperature observation result, and the temperature measurement chip 10 (10-11 to 10-10). -44) is an alarm means for outputting an abnormality alarm when an abnormality detection signal is received from any one of the above, and the temperature measuring chip 10 (10-11 to 10-44) is located at a predetermined local area in the monitoring area of the alarm means. At least one unit is installed, the temperature of the predetermined local area (local area) is observed, and when a predetermined abnormality such as a fire is detected based on the abnormality of the temperature indicated by the temperature observation result, an abnormality detection signal is transmitted to the alarm means. This is a temperature measuring means for outputting an abnormality alarm. In the following description, the case where the alarm device 100 detects a fire due to an abnormality and outputs a fire alarm will be described as an example.

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

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

  Taking the alarm system 1a as an example, each of the temperature measuring chips 10-11 to 10-14 observes a predetermined local temperature, and when an abnormality is detected from the temperature indicated by the temperature observation result, an abnormality detection signal is output to the alarm device 100. -1. The alarm device 100-1 receives the abnormality detection signal and outputs a fire alarm.

  The alarm device 100-1 with a temperature sensor observes the temperature of the entire monitoring area, and outputs a fire alarm as an abnormality alarm when detecting an abnormality of the temperature indicated by the temperature observation result, and is one of the temperature measurement chips. A fire alarm is output as an abnormality alarm even when an abnormality detection signal is received from.

  Between the alarm device 100-1 and the temperature measurement chips 10-11 to 10-14, there is a communication path 11 according to a predetermined first communication protocol, and the temperature measurement 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.

  Further, in the example of FIG. 1, an interlocking group is formed so that mutual communication is possible with the alarm devices 100-1 to 100-4 provided in the alarm systems 1 a to 1 d, 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, when the alarm device 100-1 receives an abnormality detection signal from any of the temperature measurement chips 10-11 to 10-14 belonging to its own alarm system (alarm system 1a) and outputs a fire alarm indicating the interlock source 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 fire alarm indicating the interlock destination is output to the alarm devices 100-2 to 100-4 that have received the abnormal interlock signal. Let Thus, the present invention links a plurality of alarm systems including at least one alarm system that manages one or a plurality of temperature measurement chips 10 with one alarm device 100.

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

  Here, the management of the plurality of temperature measurement chips 10 by the alarm device 100 means that a plurality of temperature measurement chips 10 are allocated to one alarm device 100 provided in the alarm system, and any of the plurality of temperature measurement chips 10 thus allocated is assigned. When the alarm device 100 receives the abnormality detection signal transmitted by KAGA, a fire alarm is output.

  In addition, interlocking a plurality of alarm systems means that the alarm device 100 of one alarm system effectively receives an abnormality detection signal transmitted from any of the plurality of temperature measurement chips 10 managed by the alarm device and determines the interlock source. When a fire alarm is output, a fire alarm is output and an abnormal interlock signal is generated, and the abnormal interlock signal is transmitted to an alarm device of another alarm system to output a fire alarm indicating the interlock destination, When an abnormal interlock signal transmitted from any alarm device of another alarm system is received, a fire alarm indicating the interlock destination is 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.

  The temperature at the observation point observed by the alarm devices 100-1 to 100-4 with the temperature sensor and the temperature measurement chips 10-11 to 10-44 is the temperature observed based on the detection signal of the temperature detection element (described later). This is temperature information that is an index to be indicated, and is referred to as “temperature” or “temperature indicated by the temperature observation result”.

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

(Alarm placement)
The alarm device 100 with a temperature sensor provided in the alarm system is arranged in a predetermined monitoring area, and outputs a fire alarm when an abnormality is detected from the temperature indicated by the temperature observation result by observing the temperature of the entire monitoring area.

  For this reason, the alarm device 100 is disposed at a position where it can efficiently receive the hot air flow that is assumed when an abnormality such as 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. For example, it is an area corresponding to the sensing area of a thermal (constant temperature) residential fire alarm device. Thermal fire alarms for residential use are equivalent to the special sensitivity of constant temperature spot type fire detectors defined by legal installation standards. Stipulated as follows.
(1) Special sensitivity is 70m ² when the main structure is fireproof.
(2) When the main structure is other structure, special sensitivity is 40m ²
A general house in which the alarm system of the present invention is installed usually has a main structure which is not a fireproof structure such as a building. Therefore, it corresponds to the above (2), and a special sensitivity of 40 m ² corresponds to one fire alarm for a house. At least one alarm device 100 is arranged in a predetermined area in a three-dimensional space corresponding to the sensing area and corresponding to the sensing area 40 m ² .

The sensing area 40 m ² of the alarm device 100 is roughly equivalent to a 12 tatami room, but a general residential room is less than 12 tatami mats corresponding to a sensing area such as 4.5 tatami mat, 6 tatami mat, 8 tatami mat, 10 tatami mat Therefore, one alarm device 100 is installed in each room in a three-dimensional space corresponding to a sensing area of 40 m ² .

  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 measurement chip)
In each alarm system of the present embodiment, one or a plurality of temperature measurement chips 10 are arranged and assigned to one alarm device 100 with a temperature sensor for management. For this reason, the one or more temperature measurement 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 measurement chip 10 assigned 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 measurement chip 10 is narrower than the monitoring area of one alarm device 100 to which it is assigned (communication).

  The temperature measuring chip 10 is arranged in a predetermined local area such as the inside or outside surface of a device using fire, the inside or outside surface of the device that becomes a heat source, the 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. In FIG. 2, the alarm device 100-1 with a temperature sensor corresponding to the 1st alarm system 1a of FIG. 1 and the temperature measurement chips 10-11 to 10-14 are installed in the room of the house 14, for example. In other rooms, alarm devices 100-2 to 100-4 and temperature measuring 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 measurement chip 10-11 is disposed as a predetermined local area of the monitoring area A, for example, in the waste bin 15, and monitors the abnormality of the local area A1 indicated by a dotted line including the waste bin 15 and its periphery. Further, the temperature measuring 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 measurement chips 10-14 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 measurement chip]
(Appearance and structure of temperature measurement chip)
FIG. 3 is an explanatory view showing the appearance of the temperature measuring chip provided in FIG. 1. FIG. 3A is a plan view, FIG. 3B is a cross section of the internal structure, and FIG. Show. In FIG. 3, the temperature measurement chip 10 has a disk-shaped cover 18 opened at one end (lower side of FIG. 3B) molded with a synthetic resin, for example, and a base 20 mounted on 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 measurement 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 measurement chip)
FIG. 4 is a block diagram showing an outline of the functional configuration of the temperature measurement chip. The temperature measuring chip 10 includes a temperature detecting element 36, a temperature monitoring 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 monitoring 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 wireless 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 detection result (event code) such as a control command, abnormal sign, abnormality, and recovery. 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 monitoring control unit 48 observes the temperature based on the temperature observation result at the observation point at predetermined intervals based on the detection signal from the temperature detection element 36, and the temperature indicated by the temperature observation result is equal to or higher than the threshold temperature Tth, for example, Tth = 75. When the temperature is higher than or equal to ° C., the abnormality is detected, the communication unit 50 is instructed, and the alarm device 100 is controlled to output the abnormality detection signal. The abnormality detection may be performed when a temperature change rate is obtained from temperatures observed over a plurality of times, and this temperature change rate (rise rate) is equal to or higher than a predetermined change rate threshold value. In addition, the abnormality may be detected by various calculations based on the temperature.

  Further, the temperature monitoring control unit 48 transmits the abnormality detection signal instructed to the communication unit 50, and the temperature of the observation point observed at every predetermined period based on the detection signal from the temperature detection element 36 is the threshold temperature Tth = 75 ° C. When the lowering state continues for a predetermined time, for example, or when it continues for a predetermined number of times, abnormality recovery (abnormality detection state has been canceled) is detected, the communication unit 50 is instructed, and an abnormality recovery detection signal is output to the alarm device 100 To control.

[Alarm configuration]
FIG. 5 is a block diagram showing a schematic configuration of the alarm device 100-1 with a temperature 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 temperature detection element 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 hardware, a CPU, a memory, a computer circuit provided with various input / output ports, or a wired logic circuit is used.

  The first communication unit 104 receives an instruction from the alarm control unit 102 and transmits / receives signals to / from the temperature measurement chips 10-11 to 10-14 according to the first communication protocol. As in the case of the communication unit 50 of the temperature measurement chip 10, this signal has a format including a transmission source code indicating a transmission source, an alarm group code, and an event code indicating an event such as an abnormality. The above-described abnormality detection 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 an abnormality detection signal is transmitted between the 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 temperature detection element 112 is an example of a temperature sensor. For example, a thermistor whose resistance value changes according to the temperature is used, and the resistance value changes according to the temperature. To 112.

  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 a control for outputting an alarm by an abnormality detection signal from the temperature measuring chip 10 and a control for detecting an alarm from the temperature indicated by its own temperature observation result, as follows. Become.

(A Alarm control based on temperature observation result of temperature measurement chip)
When the alarm control unit 102 detects the effective reception of the abnormality detection signal according to the first communication protocol transmitted from, for example, the temperature measurement chip 10-11 of the alarm system 1a via the first communication unit 104, the notification unit 114 Control to output a fire alarm indicating the link source. As a fire alarm in this case, for example, a voice message such as “Please confirm that fire No. 1 was detected” is repeatedly output from the speaker and the LED is lit for example. Here, “No. 1” is information that identifies the temperature measurement chip 10-11 that has detected a fire.

  That is, the abnormality detection signal transmitted from the temperature measurement chip 10 to the alarm device 100 includes a code (transmission source code) for specifying the temperature measurement chip 10 as the transmission source. And the code | symbol which identifies each temperature measurement 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 measuring chip that has detected the abnormality as described above is recognized, and in response to this, the voice message of the fire alarm can include, for example, information including the installation location.

  Further, when the alarm control unit 102 outputs a disaster alarm from the notification unit 114 based on the abnormality detection signal from the temperature measurement chip 10-11, the alarm control unit 102 generates an abnormality interlocking signal according to the second communication protocol in accordance with this, The second communication unit 108 is instructed to perform control for transmitting the abnormal interlock signal to the alarm devices 100-2 to 100-4 of other alarm systems, and the alarm device 100 of the other alarm system that has effectively received the abnormal interlock signal. A fire alarm indicating the interlocking destination is output at −2 to 100-4. 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 itself (a signal from the temperature measuring chip 10 under its control or a signal within the interlocking group to which it belongs), and there is no abnormality (error) in the signal content It means that you recognized that. Hereinafter, such effective reception may be simply referred to as reception.

(B Alarm control based on own temperature observation results)
The alarm control unit 102 detects an abnormality when the temperature indicated by the temperature observation result observed every predetermined period based on the detection signal from its own temperature detection element 112 is a predetermined threshold temperature Tth, for example, Tth = 75 ° C. or more. Then, control is performed to output a fire alarm indicating the interlocking source 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 temperature indicated by the temperature observation result observed every predetermined period based on the detection signal from the temperature detection element 112 and a disaster warning 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 measurement result of the temperature measurement chip 10 and when the abnormality is detected based on the temperature measurement result of the own temperature detection element 112 may be the same.

(Abnormality recovery control)
The alarm control unit 102 has transmitted the temperature measurement chip 10 that is the source of the fire alarm, here the alarm detection signal from which the alarm device 100-1 outputs the fire alarm, via the first communication unit 104. When the effective reception of the abnormality recovery detection signal according to the first communication protocol is detected from the temperature measurement chip 10-11, a fire alarm output (alarm sound and alarm) indicating the interlocking destination caused by the abnormality detection signal from the notification unit 114 is detected. (Or alarm display) is stopped, and an abnormality recovery interlocking signal is generated in accordance with the second communication protocol, and the second communication unit 108 is instructed to output the abnormality recovery interlocking signal to the alarm device 100-2 of another alarm system. ~ 100-4 is transmitted to the alarm device 100-2 to 100-4 of the other alarm system that has received this, a fire alarm output (warning indicating the interlocking destination caused by the same abnormality detection signal) Stopping the sound and / or alarm display).

  When the alarm control unit 102 detects 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 112 is performed.

  Note that when the content of the temperature measurement chip 10 that causes the fire alarm is not specified, for example, in the above example, the alarm message does not include “No. 1” of the linkage source and “No. 1” of the linkage destination. In this case, the alarm device 100 outputs an alarm due to the effective reception of the abnormality detection signal from the plurality of temperature measurement chips 10 under its control, and when the interlock signal is transmitted, Until the abnormality recovery signal is received from all of the temperature measurement chips 10 that have transmitted the abnormality detection signal, the output of the fire alarm sound and / or alarm display is not stopped, and the abnormality recovery interlocking signal is not transmitted.

  Further, the alarm control unit 102 detects an abnormality from the temperature indicated by the temperature observation result observed every predetermined period based on the detection signal from its own temperature detection element 112, outputs a fire alarm indicating the interlock source, and then performs temperature observation. When the temperature indicated by the result is lower than the threshold temperature Tth = 75 ° C., for example, when it continues for a predetermined time, or when it continues for a predetermined number of times, for example, it is detected that an abnormality has been recovered (the abnormality detection state has been eliminated) The alarm output (alarm sound and / or alarm display) is stopped, an abnormality recovery interlocking signal is generated according to the second communication protocol, and the second communication unit 108 is instructed to send the abnormality recovery interlocking signal to another alarm system. The alarm is output to the alarm devices 100-2 to 100-4 of the other alarm systems that have received the control. Warning sound and / or alarm display) is stopped.

(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 a fire occurs in the warning area A of the alarm device 100-1 outside the local areas A1 to A4 of the temperature measurement 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 18 rises and hits the ceiling surface, and spreads in the lateral direction along the ceiling surface. Since this hot air current 18 passes through the alarm device 100-1 and diffuses, the alarm device 100-1 with a temperature sensor efficiently receives the hot air current, the temperature indicated by the temperature observation result rises, and is higher than the threshold temperature Tth. Detects abnormalities and outputs a fire alarm.

  On the other hand, the temperature measurement chips 10-11 to 10-14 monitor abnormalities from the temperatures indicated by the temperature observation results of the local areas A1 to A4 and do not receive the thermal airflow 18 due to the fire F directly. It takes time until the temperature indicated by the observation result of A4 becomes equal to or higher than the threshold temperature Tth, and the time delay until an abnormality is detected increases. As described above, the alarm 100-1 that monitors the entire monitoring area A reliably ensures the temperature rise associated with the fire F at an early stage against the fire F that is missed only by the temperature measuring chips 10-11 to 10-14. A fire alarm can be output upon detection.

  FIG. 7 is an explanatory diagram when a fire F occurs in the waste bin 15 in which the temperature measuring chip 10-11 is installed. When the fire F occurs in the waste bin 15, the fire F is a fire in the local region A1 of the temperature measurement chip 10-11. Therefore, the temperature indicated by the temperature observation result of the temperature measurement chip 10-11 is equal to or higher than the threshold temperature Tth. If an abnormality is detected, an abnormality detection signal is transmitted to the alarm device 100-1 to output a fire alarm.

  In this case, the thermal air flow 18 due to the fire F in the waste bin 15 is weak at the initial stage of the fire F, and the temperature indicated by the temperature measurement result of the alarm device 100-1 with the temperature sensor rises to the threshold temperature Tth or more to detect the fire. It is only after the fire has spread that it takes time to detect and alert the fire. As described above, the temperature measurement chips 10-11 to 10-14 take a long time for detection only by the alarm device 100-1, or the temperature increase due to the fire in the local regions A1 to A4 that may possibly occur at an early stage. The fire alarm can be output from the alarm device 100-1 by reliably detecting.

[Abnormality detection by two-step judgment]
Next, as another embodiment of the alarm system according to the present invention, in the temperature measuring chip 10 and the alarm device 100 with the temperature sensor, an abnormality sign and an abnormality are detected from the temperatures indicated by the respective temperature observation results using two-stage threshold values. An alarm system that detects the above 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 measuring chip)
The temperature measurement chip 10-11 has the same configuration as that shown in FIG. 4, but the processing for detecting an abnormality by the temperature monitoring control unit 48 and a part of the control accompanying the abnormality detection are different. The same applies to the other temperature measurement chips 10-12 to 10-44, but the alarm measurement system may be a mixture of the temperature measurement chip 10 of the above-described embodiment and the temperature measurement chip 10 of the present embodiment. In this case, the alarm device 100 performs the same operation as described in the previous embodiment or the operation described here in accordance with signals from these temperature measurement chips.

  The processing and control of the temperature monitoring control unit 48 in the case of detecting an abnormality sign and abnormality with two-stage threshold values are as follows.

  When the temperature indicated by the temperature observation result observed at predetermined intervals based on the detection signal from the temperature detection element 36 is equal to or higher than the first threshold temperature Tth1 (for example, Tth1 = 65 ° C.), the temperature monitoring control unit 48 overheats, etc. Control for detecting an abnormal sign as an abnormal sign, generating an abnormal sign detection signal according to the first communication protocol, instructing the communication unit 50, and transmitting the abnormal sign detection signal to the alarm device 100-1. Do.

  Further, the temperature monitoring control unit 48 detects the abnormality sign, instructs the communication unit 50 to transmit the abnormality sign detection signal to the alarm device 100-1, and then, based on the detection signal from the temperature detection element 36, at predetermined intervals. When the temperature indicated by the temperature observation result observed is equal to or higher than a second threshold temperature Tth2 (eg, Tth2 = 75 ° C.) higher than the first threshold temperature, an abnormality is detected, and an abnormality detection signal according to the first communication protocol is detected. Is generated, the communication unit 50 is instructed, and the abnormality detection signal is transmitted to the alarm device 100-1. Other than this, since it is the same as the control by the temperature monitoring control unit 48 of FIG.

(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 in the case of detecting an abnormality with a two-stage threshold, the abnormality forecast detection signal from the temperature measurement chip 10 and the control that outputs an alarm by the abnormality detection signal, and the temperature indicated by the temperature measurement result of itself There is a control that detects an abnormality sign and abnormality and outputs an alarm, as follows.

(A Temperature detection chip abnormality detection / control based on abnormality detection)
When the alarm control unit 102 detects the effective reception of the abnormal sign detection signal according to the first communication protocol transmitted from the temperature measurement chip 10, for example, via the first communication unit 104, the alarm control unit 102 indicates the link source from the notification unit 114. Performs control to output an anomaly forecast warning. 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, when the alarm control unit 102 detects the effective reception of the abnormality detection signal according to the first communication protocol transmitted from the temperature measurement chip 10 via the first communication unit 104, the alarm control unit 102 fires indicating the interlock source from the notification unit 112 Control to output an alarm. In this case, as a fire alarm, 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 turned on, for example.

  Further, when the alarm control unit 102 detects the effective reception of the abnormal sign detection signal or the abnormal detection signal, the alarm control unit 102 generates an abnormal forecast interlocking signal or an abnormal interlocking signal in accordance with the second communication protocol in accordance with each, The alarm device which instructed the unit 108 to perform control for transmitting the abnormal forecast interlocking signal or the abnormal interlocking signal to the alarm devices 100-2 to 100-4 of other alarm systems and received the abnormal forecast interlocking signal or the abnormal interlocking signal. 100-2 to 100-4 are made to output the abnormal forecast warning or the fire alarm indicating the interlocking 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 speaker, and the LED is lit or blinked, 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 this case, control is performed to output an abnormality forecast alarm or a fire alarm indicating the interlocking destination from the notification unit 112. Other than this, the control is the same as that of the alarm control unit 102 in FIG.

  In this way, when an alarm forecast alarm is output from the alarm device 100, if there is a resident in the house, the person hears the alarm forecast alarm and knows the sign of fire (predictor), for example, the temperature specified by the alarm content Go to the place where the measuring chip 10 is installed, check the situation, and if the abnormal warning alert content specifies the temperature measuring chip 10 installed on the stove 14, for example, knowing that the stove 14 has overheated and stopping the operation It becomes possible to do.

  In addition, when a fire alarm is output before the resident responds to the abnormality forecast alarm output from the alarm devices 100-1 to 100-4, the person installs the temperature measuring 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 own temperature observation results)
When the temperature indicated by the temperature observation result observed at predetermined intervals based on the detection signal from the temperature detection element 112 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. The abnormal sign is detected as a sign of the error, and control is performed 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 abnormality sign from the temperature indicated by the temperature observation result observed every predetermined period based on the detection signal from the temperature detection element 112 and outputs an abnormality prediction alarm from the notification unit 114. Abnormality is detected when the temperature indicated by the temperature observation result observed every predetermined period based on the detection signal from the detection element 112 is equal to or higher than the second threshold temperature Tth2 (eg, Tth2 = 75 ° C.) higher than the first threshold temperature. And the control which outputs the fire alarm which shows the interlocking | linkage origin from the alerting | reporting part 114 is performed. 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 an alarm forecast alarm is output from the alarm device 100 that is monitoring the entire monitoring area A, if there is a resident in the house, the person hears the alarm forecast alarm and gives an abnormal sign (predictor). Knowing and checking the status of the monitoring area A, it is possible to 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. In addition, it becomes possible to cope appropriately and take appropriate evacuation action.

[Other Embodiments of Temperature Measuring Chip]
FIG. 8 is an explanatory view showing another embodiment of the temperature measuring 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 measurement 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 measured efficiently.

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

  Since the temperature measuring 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 measuring chip 36 has a wider monitoring area than the temperature measuring chip 10 shown in FIG. However, as shown in FIG. 2, when the object to be monitored is installed in the waste bin 15, for example, it is limited to a relatively narrow monitoring region centering on the internal space of the waste bin 15.

  FIG. 9 is an explanatory view showing another embodiment of the temperature measuring 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 of FIG. 9, when the temperature measurement 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 measuring chip 10 having the structure of FIG. 9, the monitoring area measures the temperature of the monitoring object, for example, the television 16 itself of FIG. Therefore, the monitoring area is limited to the monitoring object itself.

  FIG. 10 is an explanatory view showing another embodiment of the temperature measuring 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 detection element 36 at the tip of the signal line 70 is provided, and the temperature detection element 36 is provided with a mounting pad 72. 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 the embodiment of FIG. 10, the temperature can be measured by attaching the temperature detecting element 36 using the attachment pad 72 at a place away from the temperature measuring chip 10, and the device or place to be monitored can be measured. Appropriate placement according to the situation is possible. For this reason, the monitoring area of the temperature measuring chip 10 in FIG. 10 can be limited to a narrow range such as a monitoring object or a place where the temperature detecting element 36 is arranged by the mounting pad 72.

  FIG. 11 is an explanatory view showing another embodiment of the temperature measuring 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 62 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 in a place away from the temperature measurement chip 10. For example, the temperature is set as a monitoring region in the inside which is difficult to see from outside the monitoring target. It is possible to monitor the abnormalities of devices such as TVs and personal computers that are always turned on and in a standby state or in use.

[Modification of the present invention]
(Communication protocol)
In the above embodiment, communication between the alarm device and the temperature measurement chip is in accordance with the first communication protocol, and 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 measurement chip)
In the above embodiment, as shown in FIG. 2, the temperature measurement chips are assigned to all the alarm devices to form a plurality of alarm systems. However, only the alarm device with no temperature measurement chip assigned is used. It is also possible to provide a linked alarm only by receiving a linked signal from another alarm device.

(Communication form)
Communication between the alarm device and the temperature measurement 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 measurement chips 36, 112: temperature detection element 48: temperature monitoring control unit 50: communication unit 100-1 to 100-4: alarm device 102: alarm control unit 104: first communication unit 108 : Second communication unit 114: notification unit 116: operation unit

Claims (5)

When it is placed in a predetermined monitoring area, the temperature of the entire monitoring area is observed and an abnormality is detected based on the temperature indicated by the temperature observation result, an abnormality alarm is output, and an abnormality is detected when an abnormality detection signal is received from the outside. An alarm means for outputting an alarm;
A temperature measuring unit that is installed at a predetermined local area in the predetermined monitoring region, and that monitors the temperature of the predetermined local region and detects an abnormality based on a temperature indicated by a temperature observation result; and a temperature measuring unit that transmits an abnormality detection signal to the alarm unit; ,
An alarm system characterized by providing.
The alarm system according to claim 1, wherein
The temperature measuring unit generates an abnormality detection signal when the temperature indicated by the predetermined local temperature measurement result is equal to or higher than a predetermined threshold temperature, and transmits the abnormality detection signal to the alarm unit.
The alarm means outputs an abnormality alarm when an abnormality detection signal is received from any of the one or a plurality of temperature measuring means, and the temperature indicated by the temperature measurement result of the entire monitoring area is equal to or higher than a predetermined threshold temperature. An alarm system characterized by detecting an abnormality in a case and outputting an abnormality alarm.
The alarm system according to claim 1, wherein
The temperature measuring means detects an abnormal sign when the temperature indicated by the temperature observation result of the predetermined local area is equal to or higher than a predetermined first threshold temperature, and transmits an abnormal sign detection signal to the alarm means, and the predetermined local temperature When the temperature indicated by the observation result is equal to or higher than a predetermined second threshold temperature higher than the first threshold temperature, an abnormality is detected and an abnormality detection signal is transmitted to the alarm means;
The alarm means outputs an abnormality forecast alarm when receiving an abnormality predictor signal from any of the one or more temperature measurement means, and receives an abnormality detection signal from any of the one or more temperature measurement means An alarm system characterized by outputting an abnormal alarm in case.
In the alarm system according to claim 3,
The alarm means further detects an abnormality sign when the temperature indicated by the temperature observation result of the entire monitoring area is equal to or higher than a predetermined first threshold temperature, and outputs an abnormality forecast alarm, and the temperature observation result of the entire monitoring area When the temperature indicated by is higher than a predetermined second threshold temperature higher than the first threshold temperature, an abnormality is detected and an abnormality alarm is output.
  The alarm system according to claim 1, wherein the alarm means receives the abnormality detection signal from any one of the one or a plurality of temperature measuring means, or observes the temperature of the entire monitoring area and performs a temperature observation result. When an abnormality is detected based on the temperature indicated, an abnormality alarm indicating the interlocking source is output, and an abnormality interlocking signal indicating the interlocking destination is output by transmitting an abnormality interlocking signal to the alarm means of another alarm system, while other An alarm system that outputs an abnormality alarm indicating an interlocking destination when an abnormality interlocking signal is received from an alarm means of the alarm system.

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