JP2016212892A - Temperature measurement chip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect a fire and to give an alarm by observing, in a spot manner, temperatures at predetermined locations with a small, simple, and inexpensive temperature measurement chip and an alarm unit provided separately from the temperature measurement chip and having an alarm part.SOLUTION: Alarm systems A1 to A4 are constituted by arranging a plurality of temperature measurement chips 10-11 to 10-43 allocated for alarm units 100-1 to 100-4 in each of predetermined locations. For example, when the temperature measurement chips 10-11 to 10-13 allocated for the alarm unit 100-1 of the alarm system A1 detect a fire on the basis of temperature indicated by temperature measurement results of the predetermined locations, such as a stove and a waste basket, the chips transmit a fire detection signal to the alarm unit 100-1 to inform and output a fire alarm. The alarm unit 100-1 further transmits a fire linkage signal to the other alarm units 100-2 to 100-4 of the other alarm systems A2 to A4 to output fire alarms.SELECTED DRAWING: Figure 1

Description

  The present invention provides a temperature measuring chip for spot-observing a predetermined local temperature in a monitoring area and transmitting a fire detection signal to an alarm device and outputting a fire alarm when a fire is detected based on the temperature observation result. About.

  2. Description of the Related Art Conventionally, an alarm device that detects and warns of a fire in a house or the like has 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 integrated in the house alarm, and a fire is generated based on a detection signal of the sensor part. When a fire alarm is detected, a fire alarm sound of a predetermined pattern is output from the alarm unit, and a fire monitor and alarm notification can be performed by a single residential alarm without the need for a receiver or the like as in the so-called automatic fire alarm equipment. It is simple and inexpensive, and it has become widespread with the obligatory installation in ordinary houses.

  In addition, by communicating between multiple home alarms, when a fire alarm sound is output from any home alarm, an interlocked home police that outputs a fire alarm sound in conjunction with other home alarms. Containers are also in practical use and are in widespread use.

JP 2007-094719 A Utility Model Registration No. 3143139 JP 2009-140236 A JP 2007-058529 A JP 2007-036645 A JP 2005-018735 A

  Many places where fires occur are places where fire is used such as various stoves and gas stoves, places where fire is used for smoking, waste bins, etc. is there. In order to detect fires occurring in such places early, it is only necessary to install residential alarms at or near these places. 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 narrowing down the location further 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 spotting a fire in a spot, for example, a temperature sensor may be installed at or near a monitoring target device, a monitoring target location, or the vicinity to detect a fire and output a fire detection signal. 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 in a place such as a container, which increases costs and is difficult to put into practical use.

  In addition, the residential 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, but the sensor unit, alarm unit, and various operation units are integrated. Therefore, the location suitable for the installation of the sensor unit is not necessarily the installation of the alarm unit or the operation unit, for example, it is difficult to operate because the operation unit is not reachable because it is installed at a high place There was also a problem that it was not consistent with the place suitable for.

  The present invention provides a small, simple, low-cost temperature measurement chip and an alarm device that is separately arranged and provided with an alarm unit, for example, the inside or outer surface of a device using fire, the inside of a device that becomes a heat source, When a fire is detected by spot-observing a predetermined local temperature such as the outer surface, inside or outside the waste bin, garbage collection location, or the vicinity thereof, a fire detection signal is sent to the alarm device to fire alarm An object of the present invention is to provide a temperature measurement chip that outputs the above-mentioned temperature.

(Temperature measurement chip A)
The present invention is a temperature measurement chip that is arranged at an observation point, observes the temperature, and detects a fire based on the temperature observation result, and transmits a fire detection signal to an alarm device to output a fire alarm,
A housing containing a circuit board inside,
A temperature detection element that is arranged on one side of the circuit board and outputs a temperature detection signal corresponding to a temperature change at the observation point;
A communication unit that is arranged on one side of the circuit board and transmits a fire detection signal;
A temperature monitoring control unit that is arranged on one side of the circuit board and transmits a fire detection signal from the communication unit when a temperature abnormality is detected from the temperature detection signal;
A battery disposed on the other side of the circuit board and supplying power to the communication unit and the temperature monitoring control unit;
An opening formed in the housing at a position where outside air flows to the temperature detection element;
A mounting member that arranges the housing so that the opening faces the observation point; and
It is provided with.

(Temperature measurement chip B)
The present invention is a temperature measurement chip that is arranged in a monitoring target and observes the temperature, and when a fire is detected based on the temperature observation result, transmits a fire detection signal to an alarm device and outputs a fire alarm,
A housing containing a circuit board inside,
A temperature detection element arranged on one side of the circuit board and outputting a temperature detection signal corresponding to the temperature change of the monitoring target;
A communication unit that is arranged on one side of the circuit board and transmits a fire detection signal;
A temperature monitoring control unit that is arranged on one side of the circuit board and transmits a fire detection signal from the communication unit when a temperature abnormality is detected from the temperature detection signal;
A battery disposed on the other side of the circuit board and supplying power to the communication unit and the temperature monitoring control unit;
A heat transfer member that is formed of a material having high thermal conductivity by exposing the contact surface with the monitoring target to the outside, and storing the temperature detection element in a state of being in thermal contact;
A mounting member for placing the exposed surface of the heat transfer member in contact with the monitoring target; and
It is provided with.

(Mounting member)
Here, the attachment member is a sheet member having magnetism or adhesiveness.

(Basic effect)
According to the present invention, the temperature measuring means is installed at a predetermined location, the temperature measuring means detects a fire based on the temperature indicated by the temperature observation result, and transmits a fire detection signal to the alarm means. Since the alarm system that receives the fire detection signal and notifies the alarm is constructed, the temperature measuring means is, for example, various appliances using fire such as various stoves and gas stoves, the installation place thereof, the place where fire is used for smoking, especially sleeping. Observation in spots by installing it in a predetermined area such as a cigarette bed or bedroom, as well as a device or place that is likely to become a fire source, such as a litter box, or the vicinity thereof. Based on the temperature indicated by the temperature observation result, a fire is detected and a fire detection signal is sent to the alarm means to promptly and reliably warn the user of the fire that has occurred in the specified local area. It is possible.

(Effect of expanding the monitoring area)
Further, the predetermined local area where the temperature measuring means to be allocated and managed by the alarm means is arranged can be expanded to an area that is within the communication range of the alarm means, and an inexpensive temperature measuring means is also arranged for a wide monitoring area. For example, the cost is reduced because there is no need to add an alarm means.
(Effects of installing alarm means)
The alarm means can be freely installed in a place where it is easy to hear an alarm sound, an alarm display is easy to see, and a switch operation can be easily performed without being restricted to a place where temperature monitoring is required. In this way, the temperature measuring means that is the sensor unit and the alarm means that is the alarm unit can be installed at optimum locations, respectively.

(Effects of arrangement of temperature measuring means)
In particular, the temperature measuring means according to the present invention is directly arranged in a predetermined local area, and compared with a conventional fire-type fire detector or house alarm that detects and raises a temperature rise caused by a hot air flow accompanying a conventional fire, It is excellent in that it can quickly detect a fire or a sign of a fire from a temperature rise at a stage and notify a fire alarm from an alarm device so that a user can appropriately deal with it.

(Effects of downsizing temperature measuring means)
Further, the temperature measuring means functioning as a sensor part can be reduced in size and power consumption due to the absence of the alarm part. For example, one alarm means is installed in a room to be monitored, and a plurality of alarm means are provided. It is possible to easily and easily realize an alarm system for detecting and alarming a fire based on the temperature observed in a multi-spot manner by preparing the temperature measuring means and arranging it at a predetermined local area at a sufficiently low cost.

(Effect of detecting abnormalities with temperature measuring means)
In addition, because a fire is detected based on the temperature indicated by the temperature measurement result of the temperature measurement means and a fire detection signal is transmitted to the alarm means, the fire 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-stage threshold)
In addition, the temperature measuring means sets the threshold temperature for detecting temperature abnormalities in two steps, high and low, detects a fire sign indicating a fire sign such as overheating above the lower threshold temperature, and transmits a fire sign detection signal. The fire alarm is output by the alarm means, the fire is detected at the higher threshold temperature or higher, the fire detection signal is transmitted, and the fire alarm is output by the alarm means. A fire forecast warning can be used to recognize fire signs at an early stage and take appropriate action.

(Effect of interlocking alarm system)
Also, since one alarm system is formed by one alarm means and a plurality of temperature measurement means assigned to the alarm means, and a plurality of alarm systems can be provided and disposed in each room, for example, an alarm system for a room When a fire is detected and alarmed, a fire-linked 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. It is possible to detect fires in a multi-spot in detail in response to monitoring areas such as detached houses, apartment houses, schools, hospitals, office buildings, etc., and to give an early warning.

(Effects of outdoor monitoring)
Further, since the temperature measuring means according to the present invention can be installed and used easily and easily regardless of the place, the temperature measuring means is not limited to being installed indoors, but can be installed at an appropriate outdoor place, for example, an outdoor garbage collection place or a storage room. Even if the fire is released, etc., it is notified at an early stage before the fire spreads, so that the user can know the fire and take appropriate measures.

Explanatory drawing showing an installation example of an alarm system according to the present invention Explanatory drawing which showed schematic structure of the alarm system by this invention Explanatory drawing showing the appearance and structure of the temperature measurement chip Block diagram showing outline of functional configuration of temperature measurement chip Block diagram showing an outline of the functional configuration of the alarm 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 shows an installation example of an alarm system according to the present invention for a house, and FIG. 2 shows a schematic configuration of the alarm system by taking out an alarm device and a temperature measuring chip. The alarm system of the present invention includes one alarm device and one or a plurality of temperature measurement chips.

  The temperature measuring chip 10 (10-11 to 10-43) is arranged in a predetermined local area, observes (acquires) the temperature of the observation point, and outputs a fire detection signal when a fire is detected based on the temperature indicated by the temperature observation result. The alarm device 100 (100-1 to 100-4) is a temperature measuring means to transmit, and outputs a fire alarm when receiving a fire detection signal from the temperature measuring means assigned and managed to each The temperature measuring means is arranged at a predetermined local area within the communication range of the alarm means for managing the temperature measuring means.

(Alarm and temperature measurement chip arrangement)
1 and 2, alarm devices 100-1 to 100-4 are installed in each room such as the kitchen, living room, children's room, and living room of the house 19, and each of the alarm devices 100-1 to 100-4 is installed. Correspondingly, the temperature measurement chips 10-11 to 10-13, 10-21 to 10-23, 10-31 to 10-33, 10-41 to 10-43 are allocated and arranged, and the alarm systems A1 to A4 are configured. To do.

  That is, the alarm system A1 is composed of an alarm device 100-1 and temperature measuring chips 10-11 to 10-13, and the alarm system A2 is composed of an alarm device 100-2 and temperature measuring chips 10-21 to 10-23, The alarm system A3 includes an alarm device 100-3 and temperature measurement chips 10-31 to 10-33, and the alarm system A4 includes an alarm device 100-4 and temperature measurement chips 10-41 to 10-43.

  Taking the kitchen alarm system A1 as an example, each of the temperature measuring chips 10-11 to 10-13 observes the temperature of the observation point, and when a fire is detected based on the temperature indicated by the temperature observation result, a fire detection signal is output. It transmits to the alarm device 100-1. The alarm device 100-1 receives the fire detection signal and outputs a fire alarm.

  Between the alarm device 100-1 and the temperature measurement chips 10-11 to 10-13, there is a communication path 11 according to a predetermined first communication protocol, and the temperature measurement chips 10-11 to 10-13 are alarmed via this path. A signal including an alarm group code unique to the alarm system A1 is transmitted to the device 100. The same applies to the other alarm systems A2 to A4.

  Moreover, in the example of FIG. 1, an interlocking group is formed among the alarm devices 100-1 to 100-4 provided in the alarm systems A1 to A4, 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 interlocking system configured by a plurality of alarm systems is transmitted by transmitting a signal including a predetermined interlocking group code. Enable communication within the group. For example, when the alarm device 100-1 receives a fire detection signal from any of the temperature measurement chips 10-11 to 10-13 and outputs a fire alarm indicating the interlock source, the alarm devices of the other alarm systems A2 to A4 A fire interlocking signal is transmitted to 100-2 to 100-4, and the alarm device 100-2 to 100-4 that has received this signal is caused to output a fire alarm indicating the continuous destination.

  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.

  Here, managing a plurality of temperature measurement chips 10 by the alarm device 100 assigns a plurality of temperature measurement chips 10 to the alarm device 100, and transmits a fire detection signal transmitted from any one of the plurality of temperature measurement chips 10 allocated. When a warning is received by the alarm device 100, it means that a fire alarm is output.

  Also, linking multiple alarm systems means that the alarm device of one alarm system effectively receives the fire detection signal transmitted from any of the multiple temperature measurement chips managed by the alarm device and indicates the source of the interlock When an alarm is output, a fire alarm is output and a fire interlock signal is generated, and the fire interlock signal is transmitted to an alarm device of another alarm system to output a fire alarm indicating the interlock destination. When a fire interlock signal transmitted from any of the alarm devices of the alarm system is received, a fire alarm indicating the interlock destination is output.

  In addition, although the following description takes the interlocking system at the time of forming the interlocking group of the alarm devices 100-1 to 100-4 as an example, the interlocking group may be formed by some of the alarm systems, or the interlocking group. The alarm systems A1 to A4 may be used as independent systems without forming a group. Hereinafter, when the alarm devices 100-1 to 100-4 and the temperature measurement chips 10-11 to 10-43 are not distinguished from each other, they are referred to as the alarm device 100 and the temperature measurement chip 10.

  Here, the temperature of the observation point observed by the temperature measurement chips 10-11 to 10-43 is temperature information serving as an index indicating the temperature observed based on the detection signal of the temperature detection element. It is called “measured temperature”.

  The temperature measuring chip 10 can be disposed in a predetermined local area of the house 19 such as the inside or outside surface of a device using fire, the inside or outside surface of a device that becomes a heat source, the inside or outside surface of a waste bin, or the vicinity thereof. As a predetermined local area in the house 19, for example, a stove 14 and a waste bin 15 installed in the vicinity of the gas stove 13 of the kitchen, the kitchen, the living room, and the child room, a bed 16 of the main bedroom for sleeping cigarettes, and the living room are installed. The television 17 is taken as an example.

  For example, in the case of a kitchen provided with an alarm system A1, the alarm device 100-1 is installed at a position where it can be easily operated, such as a wall surface, and the temperature measuring chip 10-11 is directly installed on the outer surface of the stove 14, and scraps. A temperature measurement chip 10-12 is installed inside the container 15, and the temperature measurement chip 10-13 is arranged near the gas stove 13.

  In the alarm system of the present embodiment, one or a plurality of temperature measurement chips 10 are arranged and assigned to one alarm device 100 for management. For this reason, the one or several temperature measurement chip | tip 10 allocated to the alarm device 100 is arrange | positioned in the predetermined local area which enters the communication range of the alarm device 100 which manages these. 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 system shown in FIGS. 1 and 2 includes four combinations of such an alarm device 100 and a temperature measurement chip 10 that is assigned and managed to the alarm device 100.

  In addition, if the temperature measuring chip 10 managed by the alarm device 100 is within the communication range, the alarm device 100 may be installed in a room different from the temperature measuring chip 10. Further, the temperature measurement chips 10 belonging to the same alarm system do not need to be installed in the same room.

[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 registration number for specifying the temperature measurement chip 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 corresponds to the control chip 38 in FIG. 3, and 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 communication unit 50 corresponds to 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 data such as a transmission source code indicating a transmission source, an alarm group code, a control command, and temperature.

  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, a fire is detected, the communication unit 50 is instructed, and control is performed to output a fire detection signal to the alarm device 100. The fire detection may be performed when a temperature change rate is obtained from temperatures observed 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, a fire may be detected by various calculations based on the temperature.

  Also, the temperature monitoring control unit 48 transmits the fire detection signal instructed to the communication unit 50, and the temperature of the observation point observed at predetermined intervals based on the detection signal from the temperature detection element 36 is set to 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, for example, a fire recovery (fire detection state has been cleared) is detected, the communication unit 50 is instructed, and a fire recovery signal is output to the alarm device 100 Take control.

[Alarm configuration]
FIG. 5 is a block diagram showing a schematic configuration of the alarm device 100-1. 5 shows a schematic configuration of the alarm device 100-1 of the alarm system A1, but the same applies to the alarm devices 100-2 to 100-4 of the other alarm systems A2 to A4.

(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 notification unit 112, and an operation unit 114, not shown. Operates with battery power.

  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 and receives signals to and from the temperature measurement chips 10-11 to 10-13 according to the first communication protocol. This signal has a format appropriately including a transmission source code indicating a transmission source, an alarm group code, and an event code such as a fire. The aforementioned fire detection signal corresponds to this signal. The alarm group code is a code unique to the alarm system A1, and by using such an alarm group code, it is possible to prevent the fire detection signal from interfering with the other adjacent alarm systems A2 to A4. it can.

  The 2nd communication part 108 transmits / receives an interlocking signal according to a predetermined | prescribed 2nd communication protocol between the alarm devices 100-2 to 100-4 of other alarm systems. The interlocking signal is assigned as an identifier unique to each alarm device 100, and is used as a code indicating the source when transmitting the signal, an interlocking group code indicating the interlocking group to which the self belongs, fire, etc. The format includes an event code indicating an event. 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 communication in the second communication protocol in Japan, STD-30 (radio equipment standard of a low power security system radio station) or STD- known as a standard of a specific low power radio station of 400 MHz band, for example. Conforms to T67 (standard for low-power radio station telemeter, telecontrol and data transmission radio equipment).

  The notification unit 112 includes a speaker, an LED, and respective drive circuits. The notification unit 112 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 114 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 the following control.

(Fire alarm control)
When the alarm control unit 102 detects the effective reception of the fire detection signal according to the first communication protocol transmitted from the temperature measurement chip 10-11 disposed, for example, in the kitchen stove 14 via the first communication unit 104, Control which outputs the fire alarm which shows the interlocking | linkage origin from the alerting | reporting part 112 is performed. 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 fire 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 that is 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, as described above, the temperature measurement chip that has detected the fire is recognized, and in response to this, the voice message of the fire alarm can include, for example, information indicating the installation location.

  When the alarm control unit 102 outputs a disaster alarm from the notification unit 112, the alarm control unit 102 generates a fire-linked signal according to the second communication protocol, instructs the second communication unit 108, and an alarm device of another alarm system. Control is performed to transmit a fire interlock signal to 100-2 to 100-4, and a fire alarm indicating the interlock destination is output by the alarm devices 100-2 to 100-4 of other alarm systems that have received the fire interlock signal. 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 in another place in PPP” is repeatedly output from the speaker and the LED is turned on, for example.

  When the alarm control unit 102 detects the effective reception of the fire-linked 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 Controls to output a fire alarm 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. This means that the signal is recognized as being addressed to itself and that the signal content is not abnormal. Hereinafter, such effective reception may be simply referred to as reception.

(Fire recovery control)
When the alarm control unit 102 detects the effective reception of the fire recovery signal according to the first communication protocol from the temperature measurement chip 10 via the first communication unit 104, the alarm control unit 102 outputs a fire alarm output indicating the interlock destination from the notification unit 112. While stopping, generate a fire recovery interlocking signal according to the second communication protocol, instruct the second communication unit 108, and transmit the fire recovery interlocking signal to the alarm devices 100-2 to 100-4 of other alarm systems Control is performed, and the alarm devices 100-2 to 100-4 of the other alarm systems that have received this control stop the fire alarm output indicating the interlocking destination.

  In addition, the alarm control unit 102 detects the effective reception of the fire recovery interlock signal transmitted from any of the alarm devices 100-2 to 100-4 of other alarm systems via the second communication unit 108. Control to stop the fire alarm output indicating the interlocking destination from 112 is performed.

(Alarm stop control)
When the alarm control unit 102 detects the alarm stop operation received by the alarm stop switch of the operation unit 114 during the output of the fire alarm as the linkage source, the alarm control unit 102 stops the fire alarm output indicating the linkage source from the notification unit 112, and Generates an alarm stop interlock signal in accordance with the second communication protocol, instructs the second communication unit 108, and performs control to transmit the alarm stop interlock signal to the alarm devices 100-2 to 100-4 of other alarm systems. The alarm devices 100-2 to 100-4 of the other alarm systems that have received this stop the fire alarm output indicating the linkage 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 indicating the interlocking destination from 112 is performed.

[Fire detection with two-stage threshold]
Next, as another embodiment of the alarm system according to the present invention, an alarm system in which the temperature measurement chip 10 detects a fire sign and a fire using a two-stage threshold value from the acquired observation point temperature will be described. To do.

(Temperature measuring chip)
The temperature measurement chip 10-11 has the same configuration as that shown in FIG. 4, but the processing for detecting a fire by the temperature monitoring control unit 48 and a part of the control accompanying the fire detection are different. The same applies to the other temperature measuring chips 10-12 to 10-43.

  Processing and control of the temperature monitoring controller 48 when detecting a fire sign and a fire with two-stage threshold values are as follows.

  The temperature monitoring control unit 48 detects a fire such as overheating when the temperature of the observation point acquired every predetermined period based on the detection signal from the temperature detection element 36 is equal to or higher than a first threshold temperature Tth1 (for example, Tth1 = 65 ° C.). A fire sign is detected as a sign, a fire sign detection signal is generated in accordance with the first communication protocol, the communication unit 50 is instructed, and the fire sign detection signal is transmitted to the alarm device 100-1.

  In addition, the temperature monitoring control unit 48 detects a fire sign, instructs the communication unit 50 to transmit a fire sign detection signal to the alarm device 100-1, and then based on a detection signal from the temperature detection element 36 at predetermined intervals. When the temperature of the observation point acquired in step 2 is equal to or higher than a second threshold temperature Tth2 (eg, Tth2 = 75 ° C.) higher than the first threshold temperature, a fire is detected and a fire detection signal is generated according to the first communication protocol. Then, the communication unit 50 is instructed to perform control for transmitting the fire detection signal 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 has the same configuration as that of FIG. 5, but the fire alarm control of the alarm control unit 102 is different. The other alarm devices 100-2 to 100-4 are the same.

  The fire alarm control of the alarm control unit 102 provided in the alarm device 100 in the case where the temperature measuring chip 10 detects a fire sign and a fire with a two-stage threshold is as follows.

  When the alarm control unit 102 detects the effective reception of the fire sign detection signal according to the first communication protocol transmitted from the temperature measurement chip 10 via the first communication unit 104, for example, the alarm control unit 102 indicates the link source from the notification unit 112. Control to output a fire forecast alarm. In this case, as a fire forecast alarm, for example, a voice message such as “Please check that PPP No. 1 is overheated” is repeatedly output from the speaker and the LED is turned on, for example.

  When the alarm control unit 102 detects effective reception of a fire 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 detects a fire indicating the link 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.

  In addition, when the alarm control unit 102 detects the effective reception of the fire sign detection signal or the fire detection signal, the alarm control unit 102 generates a fire forecast interlocking signal or a fire interlocking signal according to the second communication protocol, and instructs the second communication unit 108. Then, the fire forecast interlock signal or the fire interlock signal is controlled to be transmitted to the alarm devices 100-2 to 100-4 of other alarm systems, and the alarm devices 100-2 to 100-2 receiving the fire forecast interlock signal or the fire interlock signal In 100-4, a fire forecast alarm or a fire alarm indicating the interlock destination is output.

  In this case, the fire forecast alarm or fire alarm indicating the link destination is, for example, “Please check that No. 1 in another location is overheated” or “A fire was detected in No. 1 in another location. Please repeat the voice message such as “Please do” and turn on the LED, for example.

  Further, the alarm control unit 102 detects the effective reception of the fire forecast interlocking signal or the fire 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. In this case, a control is performed to output a fire 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 the fire forecast alarm is output from the alarm device 100, if there is a person in the house 19, the temperature measurement chip 10 identified by the alarm content by hearing the fire forecast alarm and knowing the sign of the fire. If the temperature measurement chip 10 installed in the stove 14 has been specified, for example, the fire forecast warning content is known to the overheating of the stove 14 and take measures such as stopping the operation. Is possible.

  In addition, when a fire alarm is output before the home-based person responds to the fire forecast alarm output from the alarm devices 100-1 to 100-4, the person installs the temperature measurement chip 10 specified by the alarm content. It is possible to go to a place to check the situation and deal with it quickly and appropriately by initial fire extinguishing.

[Other Embodiments of Temperature Measuring Chip]
FIG. 6 is an explanatory view showing another embodiment of the temperature measuring chip in the present invention. In the present embodiment, a temperature detecting element 36 (for example, a thermistor) that protrudes from the upper portion of the cover 18 of the temperature measuring chip 10 to form a cage-like protective frame 64 and has a lead terminal connected and fixed to the circuit board 22 in the housing. ) Is disposed inside the space surrounded by the protective frame 64, and the temperature of the installation space can be efficiently measured while the temperature detecting element 36 is exposed to the outside air and protected from external impacts.

  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.

  FIG. 7 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 temperature detection element 36 is provided on the base 20 side. A heat transfer member 66 using a metal having a high thermal conductivity is arranged on the base 20 with its contact surface exposed to the outside, and a lead terminal is connected and fixed to the circuit board 22 in a recess formed inside the heat transfer member 66. The temperature detecting element 36 is accommodated and fixed using an adhesive 68 or the like in a state where the temperature detecting element 36 is in thermal contact with the heat transfer member 66.

  A mounting sheet 34 using a magnet sheet or an adhesive sheet is provided on the outer surface of the base 20 on which the heat transfer member 66 is disposed. The other structure is basically the same as that of the embodiment of FIG.

  According to the embodiment shown in FIG. 7, when the temperature measurement chip 10 is arranged in a device or place to be monitored, the heat transfer member 66 provided on the base 20 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.

  FIG. 8 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 is provided at the tip of the signal line 70, and the mounting pad 72 is provided on the temperature detection element 36. As the attachment pad 72, an adhesive sheet or the like can be used in the same manner as the attachment sheet 34. A mounting sheet 34 is provided on the outer surface of the base 20. The other structure is basically the same as that of the embodiment of FIG.

  According to the embodiment of FIG. 8, the temperature can be acquired by attaching the temperature detection element 36 using the attachment pad 72 at a place away from the temperature measurement chip 10, and the device or place to be monitored can be obtained. Appropriate placement according to the situation is possible.

  FIG. 9 is an explanatory view showing another embodiment of the temperature measurement chip according to the present invention. In the present embodiment, the signal line 70 is pulled out from the side surface of the cover 18 in the same manner as in the embodiment of FIG. 8, but a probe 74 having a sharp end is provided at the end of the signal line 70. A temperature detecting element 36 is provided at the tip of the head. 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 can be positioned by inserting the probe 74 in a place away from the temperature measurement chip 10, for example, the internal temperature of the monitoring target can be acquired. Appropriate placement according to the situation of the target equipment and location is possible.

[Modification of the present invention]
(Communication protocol)
In the above embodiment, wireless communication according to the first communication protocol is used between the alarm device and the temperature measurement chip, and wireless communication according to the second communication protocol is used between the alarm devices. The frequency of wireless communication may be set as another 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, a plurality of alarm systems are formed by assigning temperature measurement chips to all alarm devices. However, an alarm system only for alarm devices without assignment of temperature measurement chips is provided, and other alarms are provided. The fire forecast interlocking signal and / or the fire interlocking signal from the vessel may be received, and only the corresponding alarm output and output stop interlocking may be performed.

(Communication form)
Further, in the above embodiment, the case where each communication is wireless is shown, but any part or all of the communication may be wired 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 10-43: temperature measurement chip 36: 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: first 2 Communication unit 112: Notification unit 114: Operation unit

Claims (3)

A temperature measurement chip that is placed at the observation point, observes the temperature, and when a fire is detected based on the temperature observation result, sends a fire detection signal to the alarm device and outputs a fire alarm,
A housing containing a circuit board inside,
A temperature detection element arranged on one side of the circuit board and outputting a temperature detection signal corresponding to a temperature change at the observation point;
A communication unit disposed on one side of the circuit board and transmitting the fire detection signal;
A temperature monitoring control unit that is arranged on one side of the circuit board and that transmits a fire detection signal from the communication unit when a temperature abnormality is detected from the temperature detection signal;
A battery disposed on the other surface side of the circuit board and supplying power to the communication unit and the temperature monitoring control unit;
An opening formed in the housing at a position where outside air flows with respect to the temperature detection element;
An attachment member that arranges the casing such that the opening faces the observation point;
A temperature measuring chip comprising:
A temperature measurement chip that is placed on the monitoring target, monitors the temperature, and detects a fire based on the temperature observation result, and sends a fire detection signal to the alarm device to output a fire alarm,
A housing containing a circuit board inside,
A temperature detection element disposed on one side of the circuit board and outputting a temperature detection signal corresponding to a temperature change of the monitoring target;
A communication unit disposed on one side of the circuit board and transmitting the fire detection signal;
A temperature monitoring control unit that is arranged on one side of the circuit board and that transmits a fire detection signal from the communication unit when a temperature abnormality is detected from the temperature detection signal;
A battery disposed on the other surface side of the circuit board and supplying power to the communication unit and the temperature monitoring control unit;
A heat transfer member that is formed of a material having a high thermal conductivity by exposing the contact surface with the monitoring target to the outside, and that houses the temperature detection element in a state of being in thermal contact;
A mounting member for placing the exposed surface of the heat transfer member in contact with the monitoring target; and
A temperature measuring chip comprising:
In the temperature measuring chip according to claim 1 or 2,
The temperature measuring chip, wherein the attachment member is a magnetic or adhesive sheet member.

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