JP6231288B2 - Alarm system and smoke observation chip - Google Patents

Description

The present invention relates to an alarm system for judging an alarm such as a fire by using a combination of an alarm device for monitoring the entire monitoring area and a smoke observation chip for locally monitoring the monitoring area, and the smoke observation chip .

  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

  Many places where fires occur are places where heat sources such as various stoves and gas stoves are used and where fire is used, places where fire is used for smoking, garbage cans, 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 fires locally, for example, a smoke concentration sensor is installed at or near the monitoring target device, the monitoring target location, and the smoke concentration rise due to the fire is detected, and the fire is detected based on this Then, 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 smoke concentration sensor. The fire is monitored by placing it directly (close to) a place such as a trash can, which increases the cost and is not practically desirable.

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

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

  According to such an alarm system, for example, a smoke observation chip is used in various heaters such as various stoves and gas stoves, heat source equipment, installation locations, places where fire is used for smoking, particularly in beds or sleeping areas where sleeping cigarettes are used. Furthermore, by installing it in a predetermined local area such as a garbage can or other equipment that is likely to become a fire source or its vicinity, the smoke density indicated by the spot-observed smoke density observation results. An abnormality is detected based on this, an abnormality detection signal is sent to an alarm device, and an alarm such as a fire occurring in a predetermined local area is quickly and reliably alarmed, so that the user can be appropriately dealt with.

  However, in the alarm system composed of the smoke observation chip and the alarm device, the smoke observation chip is installed in the predetermined local area in the monitoring area of the alarm system as necessary. Or even if the detection areas of each of the plurality of smoke observation chips are combined, the entire monitoring area cannot always be covered. In this way, if there is an area in the monitoring area that is not monitored by any of the smoke observation chip detection areas, if there is a fire or other abnormality in that area, a fire etc. to any of the smoke observation chip detection areas The abnormalities of the fire will expand and alarms will be detected by detecting abnormalities such as fires based on the observation results of the smoke observation chip. However, there remains a problem that the time delay until the fire detection is increased.

The present invention relates to an alarm system and a smoke that can quickly and surely determine abnormalities such as a fire based on the smoke concentration that is a local observation value in the monitoring area and the temperature that is the entire observation value in the monitoring area, and can make an alarm. The purpose is to provide an observation chip .

(Alarm system)
The present invention provides an alarm system,
It is installed in a predetermined monitoring area, and when an abnormality is detected based on the observed temperature, the abnormality alarm is output and an abnormality detection signal is received from the outside. An alarm means for outputting an alarm;
A smoke concentration observing means that is installed at a predetermined local area in a predetermined monitoring area, and that detects a smoke density in the predetermined local area and detects an abnormality based on the smoke density as an observation result, and transmits an abnormality detection signal to an alarm means; ,
With
The smoke concentration observation means is installed at a position where the smoke means can be detected at a stage earlier than the warning means detects the abnormality based on the temperature as the predetermined locality, as a result of abnormality in the location where the fire or heat source is used . It is characterized by that.

(Abnormality detection with a single threshold)
The smoke density observation means generates an abnormality detection signal when the smoke density, which is a predetermined local observation value, is equal to or higher than a predetermined threshold smoke density, and transmits it to the alarm means.
The alarm means outputs an abnormality alarm when an abnormality detection signal is received from one or a plurality of smoke concentration observation means, and an abnormality occurs when the temperature as an observation value 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 based on two-step judgment of smoke concentration observation means)
The smoke density observing means detects an abnormal sign when the smoke density indicated by the smoke density observation result of the predetermined local area is equal to or higher than a predetermined first threshold smoke density, and transmits an abnormal sign detection signal to the alarm means. When the smoke density indicated by the density observation result is equal to or higher than a predetermined second threshold smoke density higher than the first threshold smoke density, an abnormality is detected and an abnormality detection signal is transmitted to the alarm means,
When the alarm means receives an abnormal predictor signal from either one or a plurality of smoke concentration observation means, and outputs an abnormality forecast alarm and receives an abnormality detection signal from either one or a plurality of smoke concentration observation means An abnormal alarm is output to.
The alarm means further detects an abnormality sign when the temperature that is the observed value 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 that is the observed value of the entire monitoring area is 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 outputs an abnormality alarm indicating an interlocking source when an abnormality detection signal is received from one or a plurality of smoke concentration observation means or when an abnormality is detected based on the temperature that is an observation value of the entire monitoring area. Output the abnormal interlock signal to the alarm means of the other alarm system to output the abnormal alarm indicating the interlock destination, while when the abnormal interlock signal is received from the alarm means of the other alarm system An abnormal alarm is output.

(Smoke observation chip)
The present invention is installed at a predetermined local area in a predetermined monitoring area, and when an abnormal state is detected based on the smoke density which is an observation value by observing the smoke density of the predetermined local area, the abnormal detection signal is sent to the predetermined monitoring area. A smoke observation chip that is installed and sends an alarm to an alarm device that outputs an alarm when an abnormality is detected based on the temperature that is the observed value by observing the temperature of the entire monitoring area. ,
A smoke detector for detecting a smoke concentration at a predetermined local area and outputting a detection signal;
A circuit board having a smoke detector;
A battery for supplying power to the circuit board including the smoke detector;
A battery lid for fixing the battery by contacting the terminal fitting of the circuit board;
A mounting sheet such as a magnet sheet or an adhesive sheet for attaching the outer surface of the battery lid side to a predetermined local area,
With
The smoke detector is arranged on one surface of the circuit board part,
The battery is disposed between the other surface of the circuit board portion and the battery lid ,
The attachment sheet is characterized in that the battery cover is detachably disposed around the battery cover .

(Basic effect)
According to the present invention, 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 alarm means sets the temperature that is an observation value of the entire monitoring area. An abnormality alarm is output when an abnormality is detected based on the detection result, and an abnormality is detected when an abnormality is detected based on the smoke concentration that is a predetermined local observation value by means of smoke concentration observation means installed at a predetermined local area in the monitoring area. Because the alarm is output by sending a signal to the alarm device, a combination of overall monitoring of the monitoring area by the alarm means and spot-like abnormality monitoring by the smoke concentration observation means can cause a fire that has occurred in the monitoring area. It is possible to reliably detect and warn of abnormalities at an early stage.

(Effects of local monitoring)
For example, even if a local abnormality that takes time to detect an abnormality is detected in the overall monitoring by an alarm means, the smoke concentration observation means can be changed by using, for example, various kinds of stoves, gas stoves, etc. By installing it in a predetermined local area such as a place where it is used, in particular a bed or bedroom where sleeping cigarettes are used, and a garbage can, etc. By detecting abnormalities based on the smoke concentration, which is the observation value observed in a spot manner, sending an abnormality detection signal to the alarm means, and quickly and reliably alarming abnormalities such as fires occurring in a predetermined area, Can be dealt with appropriately.

(Effects of overall monitoring)
In addition, even if an abnormality occurs at a location away from the smoke concentration observation means arranged at a predetermined location, the abnormality is quickly and reliably detected by the alarm means that monitors the entire monitoring area, and the abnormality by the smoke concentration observation means. Even if there is an abnormality such as a fire that is missed by monitoring, it is possible to detect an abnormality or its sign at an early stage and give an alarm.

(Effects on local arrangement of smoke density observation means)
Also, by monitoring the overall abnormality of the monitoring area by the alarm means, it is possible to monitor the abnormality in a spot by arranging the smoke concentration observation means in a predetermined local area without considering the overall monitoring of the monitoring area. It is possible to reduce the restriction when the smoke density observation means is arranged 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-like abnormality monitoring of one or a plurality of smoke concentration observation means in which the monitoring area covered by the alarm means itself is arranged in a predetermined local area in the alarm area. By covering the above, it is possible to monitor in detail, and it is possible to detect the occurrence of an abnormality or its sign at an early stage and improve the performance of monitoring an abnormality such as a fire.

(Effect of detecting abnormalities with smoke concentration monitoring means)
Also, because the abnormality is detected based on the smoke concentration that is the observation value of the smoke concentration observation means and the abnormality detection signal is transmitted to the alarm means, the alarm means side is based on the smoke concentration that is the observation value of the smoke concentration observation means. Processing for detecting abnormalities is not necessary, and the processing burden on the alarm means can be reduced.

(Effects of two-step judgment)
Further, the smoke density observation means sets the threshold smoke density for detecting the smoke density abnormality in two steps, high and low, and detects an abnormal sign indicating an abnormal sign at a lower level than the first threshold smoke density to detect the abnormal sign detection signal. The warning means is output by the alarm means, the abnormality is detected at the higher second threshold smoke density or higher, the abnormality detection signal is transmitted, and the alarm means is output by the alarm means. An anomaly forecast alarm issued before an anomaly alarm can detect an early sign of an anomaly such as a fire and take appropriate action.

  Similarly, the alarm means also sets the threshold smoke density at two levels, high and low, detects abnormal signs indicating abnormal signs 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 more and outputting an abnormality alarm, the user knows the signs of an abnormality such as a fire at an early stage by the abnormality prediction alarm issued before the abnormality alarm, and appropriately copes with it. be able to.

(Effect of interlocking alarm system)
Also, since one alarm system is formed by one alarm means and one or a plurality of smoke density observation means assigned to the alarm means, a plurality of the alarm systems can be provided and arranged in each room, for example. When an abnormality is detected by an alarm system, an alarm interlocking 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 flexibly and appropriately It can be constructed to detect abnormalities in a multi-spot manner in response to monitoring areas such as detached houses, apartment houses, schools, hospitals, office buildings, etc., and alert early.

Block diagram showing schematic configuration of alarm system Explanatory diagram showing the monitoring area when the alarm system is installed in a house Explanatory drawing showing the appearance and structure of the smoke observation chip Explanatory drawing showing another embodiment of the smoke observation chip Block diagram showing an embodiment of the functional configuration of the smoke observation chip Block diagram showing an embodiment of the functional configuration of the alarm device Explanatory drawing showing a fire in the monitoring area of the alarm Explanatory drawing showing a fire in the monitoring area of the smoke observation chip

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

  The alarm device 100 (100-1 to 100-4) with a temperature sensor uses a predetermined three-dimensional space as a monitoring area, observes the smoke density of the entire monitoring area with its own temperature sensor, and sets the temperature to an observed value. It is an alarm means for outputting an abnormality alarm when an abnormality is detected based on an abnormality alarm and outputting an abnormality alarm when an abnormality detection signal is received from any of the smoke observation chips 10 (10-11 to 10-44). At least one smoke observation chip 10 (10-11 to 10-44) is installed in a predetermined local area in the monitoring area of the alarm means, and the smoke concentration in the predetermined local area (local area) is observed and is an observed value. Smoke concentration observing means for outputting an abnormality alarm by transmitting an abnormality detection signal to an alarm means when a predetermined abnormality such as a fire is detected based on the smoke concentration. In the following description, the case where the alarm device 100 detects a fire as an abnormality alarm and outputs a fire alarm will be described as an example.

(Arrangement of alarm and smoke observation chip)
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, smoke observation chips 10-11 to 10-44 are arranged to constitute alarm systems 1a to 1d.

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

  Taking the alarm system 1a as an example, each of the smoke observation chips 10-11 to 10-14 observes a smoke concentration at a predetermined local area, and when an abnormality is detected from the smoke concentration that is the observed value, an abnormality detection signal is output to the alarm device. 100-1 is transmitted. 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 when an abnormality is detected from the observed temperature, and an abnormality detection signal from any of the smoke observation chips. A fire alarm is also output when a message is received.

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

  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 smoke observation 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 smoke observation chips 10 with one alarm device 100.

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

  Here, the management of the plurality of smoke observation chips 10 by the alarm device 100 means that a plurality of smoke observation chips 10 are assigned to one alarm device 100 provided in the alarm system, and any of the assigned smoke observation chips 10 is selected. 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 smoke observation 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 1a to 1d may be used as independent systems.

  The temperature observed by the alarm devices 100-1 to 100-4 with temperature sensors is temperature information that is an index indicating the temperature observed based on the detection signal of the temperature sensor. "Temperature that is".

  The smoke density observed by the smoke observation chips 10-11 to 10-44 is smoke density information that is an index indicating the smoke density observed based on the detection signal of the smoke detector (described later). Or “smoke density as an observation value”.

  The system shown in FIGS. 1 and 2 is provided with four alarm systems in which such an alarm device 100 and a smoke observation chip 10 that is assigned and managed are combined.

(Alarm placement)
The alarm device 100 with a temperature sensor provided in the alarm system is arranged in a predetermined monitoring area, observes the state according to the smoke density of the entire monitoring area, and detects a fire alarm when an abnormality is detected from the observed temperature. Is output.

  For this reason, the alarm device 100 is disposed at a position where it can efficiently receive the thermal airflow 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 mats, 6 tatami mats, 8 tatami mats, and 10 tatami mats. 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. .
(Smoke observation chip placement)
In each alarm system of the present embodiment, one or a plurality of smoke observation chips 10 are arranged and managed by assigning them to one alarm device 100 with a temperature sensor. For this reason, the one or more smoke observation chips 10 assigned to the alarm device 100 are arranged in a predetermined local area within the monitoring area of the alarm device 100 that manages them and within the communication range of the alarm device 100, and within a predetermined detection area. Observe the smoke concentration. The communication range of the alarm device 100 refers to a range in which a signal transmitted from the smoke observation chip 10 assigned and managed by the alarm device 100 falls within a communication distance where the alarm device 100 can effectively receive the signal. The detection area of one smoke observation chip 10 is narrower than the monitoring area of one alarm device 100 to which it is assigned (communication with).

  The smoke observation chip 10 is arranged in a predetermined local area such as the inside or outside surface of a heat source or a device using fire, the inside or outside surface of a device serving as a heat source, the inside or outside surface of a container, or the vicinity thereof. In particular, it should be placed in a place where smoke is generated due to overheating or ignition.

  Examples of the predetermined area in the house include a stove and a garbage can installed in the vicinity of a kitchen gas stove, a kitchen, a living room, and a children's 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 smoke observation 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 smoke observation chips 10-21 to 10-44 are installed corresponding to the alarm systems 1b to 1d, but the illustration is omitted.

  The alarm device 100-1 is installed on the upper part of the wall surface close to the ceiling surface within a predetermined distance, for example, 50 cm from the ceiling surface. The alarm device 100-1 has the entire room as the monitoring area A, and is installed near the ceiling surface 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. To monitor.

  The smoke observation chip 10-11 is arranged as a predetermined local area of the monitoring area A, for example, in the trash can 15, and monitors the abnormality of the local area A1 indicated by a dotted line including the trash can 15 and its periphery. In addition, the smoke observation chip 10-12 is disposed as a predetermined local area, for example, in the vicinity of the heating device 16, and monitors the abnormality of the local area A2 indicated by the dotted line including the heating device 16 and its periphery. Further, the smoke observation 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 smoke observation chip]
(Appearance and structure of smoke observation chip)
3 is an explanatory view showing the appearance of the smoke observation chip provided in FIG. 1. FIG. 3A is a plan view, FIG. 3B is a cross section of the internal structure, and FIG. 3C is a bottom view. Show.

  In FIG. 3, the smoke observation chip 10 includes a cover 18 molded from, for example, a synthetic resin, and a main body 20 disposed inside the cover 18. The cover 18 has a substantially cylindrical shape opened on the back surface (upper side of FIG. 3B), and has a smoke inlet 38 opened on the outer periphery of the front end side (lower side of FIG. 3B) and smoke detection inside. A chamber 40 is formed. A seal 45 indicating a number for identifying the ID of the smoke observation chip 10 is attached to the tip surface of the cover 18 as necessary.

  A light emitting unit 34 using, for example, an infrared LED and a light receiving unit 36 using, for example, a phototransistor are disposed inside the main body 20 facing the smoke detection chamber 40, and both optical axes are used to detect the smoke detection space in the smoke detection chamber 40. As shown in FIG. 4 (A), the light emitting unit 34 and the light receiving unit 36 are arranged so that their optical axes cross diagonally even in the horizontal direction. The scattered light type smoke detection structure is realized.

  The scattered light type smoke detection structure irradiates the smoke detection space with pulsed light generated by intermittent driving of the light emitting unit 34, and receives scattered light generated when light hits smoke particles flowing into the smoke detection chamber 40 from the outside. The unit 36 receives the light and converts it into an electrical signal, and outputs a smoke density detection signal corresponding to the amount of scattered light received.

  The circuit board 22 is disposed on the back side of the main body 20 (upper side in FIG. 3B), and the back opening side of the cover 18 is closed by attaching a lid member 37. A button battery 24 is accommodated between the circuit board 22 and the lid member 37, a positive terminal fitting 32 is in contact with the positive electrode of the button battery 24, and a negative electrode is provided on the negative electrode on the end surface of the button battery 24 located on the circuit board 22 side. The terminal fitting 30 is in contact.

  The button battery 24 is fixed by attaching the battery lid 26 to the opening hole of the lid member 37. The battery lid 26 can be locked by forming L-shaped fitting protrusions at two opposite locations on the inner periphery of the battery lid 26 and inserting the L-shaped fitting protrusions into the fitting notches formed in the opening of the lid member 37 and turning them. 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.

  Note that the button battery mounting structure of the present embodiment is merely an example, and the button battery 24 can be appropriately attached and detached as necessary.

  A light emitting unit 34, a light receiving unit 36, a control chip 41 and a communication chip 42 are mounted on the lower side of the circuit board 22 in the figure. Further, an LED (not shown) 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 so as to face the LED.

  A mounting sheet 33 is provided on the outer periphery of the back surface, which is the upper surface side of the lid member 37 in the figure. The attachment sheet 33 is a magnet sheet or an adhesive sheet, and can be easily attached and arranged on a device or place to be monitored. In addition, an attachment means and a method are arbitrary, In addition to the attachment sheet 33, appropriate means, such as a hook, a clip, and a string, can be provided as needed.

(Structure of other embodiment of smoke observation chip)
FIG. 4 is a sectional view showing another embodiment of the smoke observation chip according to the present invention, and is characterized in that the smoke detection space in the scattered light smoke detection structure is formed in the external space.

  In FIG. 4, a light emitting opening and a light receiving opening are formed on the detection surface 20 a on the lower side of the main body 20, which is disposed inside the opening below the cover 18, corresponding to the receiving holes of the light emitting unit 34 and the light receiving unit 36. The light from the light emitting unit 34 is emitted toward the smoke detection point P of the external smoke detection space through the light emission opening, and the scattered light scattered by the smoke particles existing in the external smoke detection space is transmitted through the light reception opening. Then, the light is incident on the light receiving unit 36 and converted into an electric signal, and a smoke density detection signal corresponding to the amount of received light scattered is output.

  A thin transparent cover 46 is disposed on the lower detection surface 20a of the main body 20 provided with a light emitting opening and a light receiving opening, and the light emitting opening and the light receiving opening are closed to prevent dust from entering the inside. Since the other structure is the same as that of the embodiment of FIG.

  Thus, by setting the smoke detection space of the scattered light type smoke detection structure in the external space of the main body 20, it is not necessary to form the smoke detection space inside like the smoke observation chip of FIG. Can be made thin.

(Functional configuration of smoke observation chip)
FIG. 5 is a block diagram showing an outline of the functional configuration of the smoke observation chip. The smoke observation chip 10 includes a smoke detector 35, a smoke concentration monitoring controller 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 smoke density monitoring control unit 48 corresponds to the control chip 41 in FIG. 3, and is a function realized by executing a program, for example. As the hardware, a control circuit 41 shown in FIG. 3 is used, and a computer circuit or the like including a CPU, a memory, various input / output ports, and the like are used.

  The communication unit 50 includes the communication chip 42 of FIG. 3 and transmits / receives a signal 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.

  For example, a 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 smoke detector 35 has the scattered light type smoke detector structure shown in FIGS. 3 and 4, and includes a light emitter and a light receiver. The smoke detector 35 is provided with a light emission driving circuit (not shown), and the light emitting unit using the infrared LED is intermittently driven to emit light at a predetermined cycle according to an instruction from the smoke density monitoring controller 48. The smoke detector 35 is provided with an amplifier circuit (not shown), amplifies the received light signal of the scattered light received by the light receiver such as a photodiode, and outputs a smoke density detection signal to the smoke density monitor controller 48.

  The smoke density monitoring control unit 48 is a function realized by executing a program by the CPU, for example. The smoke density monitoring control unit 48 intermittently drives the light emitting unit of the smoke detecting unit 35 to output a smoke density detection signal from the light receiving unit.

  The smoke density monitoring controller 48 observes the smoke density at the observation point based on the smoke density detection signal output from the smoke detector 35 every predetermined cycle, and the smoke density as the observed value is equal to or higher than the threshold smoke density Sth, for example, Sth = In the case of 15% / m or more, the abnormality is detected, the communication unit 50 is instructed, and the alarm device 100 outputs an abnormality detection signal. The abnormality detection may be performed when the smoke concentration change rate is obtained from the smoke concentration observed over a plurality of times, and the smoke concentration change rate (increase 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 smoke density.

  In addition, the smoke density monitoring control unit 48 transmits the threshold smoke density Sth, which is an observation value acquired at predetermined intervals based on the detection signal from the smoke detecting unit 35 during transmission of the abnormality detection signal instructed to the communication unit 50. When the state below 15% / m continues for a predetermined time, or for example, continues for a predetermined number of times, abnormality recovery (abnormality detection state has been resolved) is detected, the communication unit 50 is instructed, and the alarm device 100 is instructed. Control to output an abnormality recovery detection signal.

[Alarm configuration]
FIG. 6 is a block diagram showing a schematic configuration of the alarm device 100-1 with a temperature sensor unit. 6 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)
6, 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 1st communication part 104 receives the instruction | indication of the alarm control part 102, and transmits / receives a signal according to a 1st communication protocol between the smoke observation chips 10-11 to 10-14. As in the case of the communication unit 50 of the smoke observation 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 is used, and in this case, a voltage detection signal corresponding to a change in resistance value due to temperature is output to the alarm control unit 102.

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

  The alarm control unit 102 is a function realized by executing a program of the CPU, and performs the following control.

(Fire alarm control)
The fire alarm control of the alarm control unit 102 includes a control for outputting an alarm based on an abnormality detection signal from the smoke observation chip 10 and a control for detecting an alarm from a temperature that is an own observation value and alarming as follows. .

(A Alarm control based on smoke concentration, which is the observation value of the smoke observation 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 smoke observation 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 for identifying the smoke observation chip 10-11 that has detected a fire.

  That is, the abnormality detection signal transmitted from the smoke observation chip 10 to the alarm device 100 includes a code (transmission source code) for specifying the transmission source smoke observation chip 10. And the code | symbol which identifies each smoke observation chip | tip and the voice message content of a fire alarm are linked | related within the memory of the alarm device 100 by the initial setting etc. FIG. For this reason, the smoke observation chip in which the abnormality is detected 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 fire alarm from the notification unit 114 based on the abnormality detection signal from the smoke observation 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 the 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 114 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 smoke monitoring 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 by own smoke density observation result)
The alarm control unit 102 detects an abnormality when the temperature, which is an observed value observed every predetermined period based on the detection signal from the temperature detection element 112 of the self, is a predetermined threshold temperature Tth, for example, Tth = 75 ° C. or more, Control which outputs the fire alarm which shows the interlocking | linkage origin from the alerting | reporting part 114 is performed. 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, which is an observed value observed every predetermined period based on the detection signal from the temperature detection element 112, and a fire alarm is output from the notification unit 114, the second communication protocol is followed 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. Fire alarms indicating linkage destinations are output by the alarm devices 100-2 to 100-4 of 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 contents of the voice message when the abnormality is detected based on the smoke density observation result of the smoke observation chip 10 and when the abnormality is detected based on the temperature that is the observation value by the own temperature detection element 112 may be the same.

(Abnormality recovery control)
The alarm control unit 102 transmits the smoke detection chip 10 that is the source of the fire alarm via the first communication unit 104, here the abnormality detection signal from which the alarm device 100-1 outputs the fire alarm. When effective reception of the abnormality recovery detection signal according to the first communication protocol is detected from the smoke observation 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 controlled to transmit to the alarm devices 100-2 to 100-4 of other alarm systems that have received this, a fire alarm output (alarm sound) indicating the linkage destination caused by the same abnormality detection signal Beauty / or alarm display) the stops.

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 114 is performed.

  In addition, in the case where the smoke observation 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. , The alarm device 100 outputs an alarm because of the effective reception of the abnormality detection signal from the plurality of smoke observation chips 10 under its control, and when the interlocking signal is transmitted, Until the abnormal state recovery signal is received from all of the smoke observation chips 10 that have transmitted the abnormal state detection signal, the output of the fire alarm sound and / or alarm display is not stopped, and the abnormal state recovery interlock signal is not transmitted.

  Further, the alarm control unit 102 detects an abnormality from the temperature, which is an observed value observed every predetermined period based on a detection signal from its own temperature detecting element 112, and outputs a fire alarm indicating an interlocking source. When a certain temperature falls below the threshold temperature Tth = 175 ° 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), (Alarm sound and / 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 alert the abnormality recovery interlocking signal of another alarm system. Control to transmit to the alarm devices 100-2 to 100-4, and to the alarm devices 100-2 to 100-4 of the other alarm systems that have received the control, / Or alarm display) the stops.

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

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

(Alarm system operation)
FIG. 7 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 smoke observation chips 10-11 to 10-14 in the alarm system 1a shown in FIG. It is.

When the fire F occurs in the warning area A of the alarm device 100-1, the hot air current 17 rises and hits the ceiling surface, and spreads in the lateral direction along the ceiling surface. Since this hot air current 17 passes through the alarm device 100-1 and diffuses, the alarm device 100-1 with a temperature sensor efficiently receives the hot air current, and the temperature that is the observed value rises and is above the threshold temperature Tth. A fire alarm is output when an abnormality is detected.
On the other hand, the smoke observation chips 10-11 to 10-14 monitor the abnormalities from the smoke concentrations which are the observation values of the local areas A1 to A4 and do not receive the thermal airflow 17 due to the fire F directly. It takes time until the smoke density indicated by the observation result of A4 becomes equal to or higher than the threshold smoke density Sth, 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 smoke observation chips 10-11 to 10-14. A fire alarm can be output upon detection.

  FIG. 8 is an explanatory diagram when a fire F occurs in the trash can 15 in which the smoke observation chip 10-11 is installed. When the fire f occurs in the garbage can 15, the fire f is an abnormality of the local area A1 of the smoke observation chip 10-11, and therefore the smoke observation chip 10-11 has a smoke density that is an observed value equal to or higher than the threshold smoke density Sth. When this happens, an abnormality is detected, and an abnormality detection signal is transmitted to the alarm device 100-1 to output a fire alarm.

In this case, the thermal airflow 17 due to the fire f in the dust bin 15 is weak at the initial stage of the fire f, and the temperature, which is the observation value of the alarm device 100-1 with the temperature sensor, rises to the threshold temperature Tth or more and an abnormality is detected. This is after the fire has spread further, and it takes time to detect and alarm. As described above, the smoke observation chips 10-11 to 10-14 take a long time to detect by the alarm device 100-1 alone, or the smoke concentration increases due to the fire in the local areas A1 to A4 at an early stage. Thus, a fire alarm can be output from the alarm device 100-1.

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

(Smoke observation chip)
The smoke observation chip 10-11 has the same configuration as that shown in FIG. 4 except that the smoke concentration monitoring control unit 48 detects an abnormality and a part of the control associated with the abnormality detection. The other smoke observation chips 10-12 to 10-44 are the same, but as the alarm system, the smoke observation chip 10 of the embodiment described above and the smoke observation chip 10 of the present embodiment may be mixed, In this case, the alarm device 100 performs the same operation as described in the previous embodiment or the operation described here according to the signals from these smoke observation chips.

  The processing and control of the smoke concentration monitoring control unit 48 when detecting an abnormality sign and abnormality with two-stage threshold values are as follows.

  The smoke concentration monitoring control unit 48, when the smoke concentration, which is an observation value observed at predetermined intervals based on the detection signal from the smoke detecting unit 35, is equal to or higher than a first threshold smoke concentration Sth1 (for example, Sth1 = 10% / m) Then, an abnormal sign is detected as an abnormal sign, an abnormal sign detection signal according to the first communication protocol is generated, an instruction is given to the communication unit 50, and the abnormal sign detection signal is transmitted to the alarm device 100-1. Take control.

  The smoke concentration monitoring control unit 48 detects an abnormal sign, instructs the communication unit 50 to transmit an abnormal sign detection signal to the alarm device 100-1, and then based on a detection signal from the smoke detecting unit 35 for a predetermined period. When the smoke concentration, which is an observed value every time, is equal to or higher than a second threshold smoke concentration Sth2 (for example, Sth2 = 15% / m) higher than the first threshold smoke concentration, an abnormality is detected and the first communication protocol is set. The abnormal detection signal which followed was instruct | indicated, it instructs to the communication part 50, and the control which transmits the said abnormal detection signal to the alarm device 100-1 is performed. Other than this, the control is the same as the control by the smoke density monitoring control unit 48 of FIG.

(Alarm)
The alarm device 100-1 basically has the same configuration as that shown in FIG. 6, 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.

  For the fire alarm control by the alarm control unit 102 in the case of detecting an abnormality with a two-stage threshold value, from the abnormality forecast detection signal from the smoke observation chip 10 and the alarm output by the abnormality detection signal, and the temperature that is the own observation value There is a control that detects an abnormality sign and an abnormality and outputs an alarm as follows.

(A Smoke observation 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, for example, the smoke observation chip 10 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 smoke has been detected at PPP No. 1” is repeatedly output from the speaker and the LED is blinked, for example.

  When the alarm control unit 102 detects effective reception of the abnormality detection signal according to the first communication protocol transmitted from the smoke observation chip 10 via the first communication unit 104, the alarm control unit 102 detects a fire indicating the interlock source from the notification unit 112114. 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, a warning alert or a fire alarm indicating the link destination may be, for example, “Please confirm that smoke was detected at No. 1 in another location” or “No. 1 in another location. Please repeat the voice message such as “Please check” and turn on or blink the LED.

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

  In this way, when the abnormality warning is output from the alarm device 100, if there is a person in the house 14, the person hears the abnormality prediction warning and knows the abnormality sign (predictor), for example, specified by the alarm content If the smoke observation chip 10 installed at the place where the smoke observation chip 10 is installed is confirmed in the place where the smoke observation chip 10 is installed, and the abnormal state warning alarm content is, for example, the place where the ashtray is placed, for example, the cigarette remaining in the ashtray It becomes possible to know the smoke from the fire and take measures such as extinguishing the ashtray.

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

(B Control based on temperature, which is its own observed value)
The alarm control unit 102 gives an abnormal sign when the temperature, which is an observed value observed every predetermined period based on the detection signal from the temperature detection element 112, is equal to or higher than a first threshold temperature Tth1 (eg, Tth1 = 65 ° C.). It is assumed that there is an abnormality sign, and control is performed to output an abnormality forecast alarm indicating the interlocking source from the notification unit 114. In this case, for example, a warning message such as “please detect the danger of PPP fire” is output repeatedly from the speaker and the LED is turned on, for example.

  Further, the alarm control unit 102 detects an abnormal sign from the temperature, which is an observation value observed every predetermined period based on the detection signal from the smoke concentration detecting element 112, and outputs an abnormal forecast alarm from the notification unit 114, When the temperature, which is the observed value observed at predetermined intervals based on the detection signal from the concentration detection element 112, is equal to or higher than the second threshold temperature Tth2 (eg, Tth2 = 75 ° C.) higher than the first threshold temperature Tth1, It detects and performs control which outputs the fire alarm which shows the interlocking origin from the alerting | reporting part 114. FIG. 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.

[Modification of the present invention]
(Communication protocol)
In the above embodiment, communication between the alarm device and the smoke observation 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 smoke observation chip)
In the above embodiment, as shown in FIG. 2, a smoke observation chip is allocated to all alarm devices to form a plurality of alarm systems. However, an alarm device with a temperature sensor that has no smoke observation chip allocation. Only an alarm system may be provided, and an interlocking alarm may be performed by receiving an interlocking signal from another alarm device.

(Communication form)
Communication between the alarm device and the smoke observation chip does not have to be wireless, and may be wired communication or a combination of wired and wireless as appropriate.

(Applications other than housing)
The above embodiment can be applied not only to residential use but also to monitoring smoke concentration abnormalities for various uses such as for 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: Smoke observation chip 35: Smoke detection unit 48: Smoke density 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 112: temperature detection element 114: notification unit 116: operation unit

Claims (6)

It is installed in a predetermined monitoring area, and when an abnormality is detected based on the observed temperature, the abnormality alarm is output and an abnormality detection signal is received from the outside. An alarm means for outputting an alarm;
Smoke density observation that is installed at a predetermined local area in the predetermined monitoring area, and that detects a smoke density in the predetermined local area and transmits an abnormality detection signal to the alarm means when an abnormality is detected based on the smoke density as an observation value. Means,
With
The smoke concentration observing means is located at a position where the predetermined local area can detect an increase in smoke concentration associated with an abnormality in a location where a fire is used or a location where a heat source is used, at an earlier stage than when the alarm means detects an abnormality based on temperature. An alarm system characterized by being installed .
The alarm system according to claim 1, wherein
The smoke density observation means generates an abnormality detection signal when the smoke density, which is the predetermined local observation value, is equal to or higher than a predetermined threshold smoke density, and transmits it to the alarm means,
Said alarm means outputs an abnormality alarm when it receives an abnormality detection signal from any one or more of the smoke density observation means, said a observed value of the entire monitoring area temperature is above 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 smoke density observing means detects an abnormal sign when the smoke density, which is the predetermined local observation value, is equal to or higher than a predetermined first threshold smoke density, transmits an abnormal sign detection signal to the alarm means, and When the smoke density which is the observed value is equal to or higher than a predetermined second threshold smoke density higher than the first threshold smoke density, an abnormality is detected and an abnormality detection signal is transmitted to the alarm means,
It said alarm means outputs an abnormality forecast alert from either one or a plurality of the smoke density observing means when receiving an abnormal sign signal, the abnormality detection signal from one of the one or more smoke density observation means An alarm system that outputs an abnormal alarm when it is received.
In the alarm system according to claim 3,
The alarm means further detects an abnormality sign when the temperature, which is an observation value of the entire monitoring area, is equal to or higher than a predetermined first threshold temperature, outputs an abnormality forecast alarm, and is an observation value of the entire monitoring area. An alarm system that detects an abnormality and outputs an abnormality alarm when the temperature is equal to or higher than a predetermined second threshold temperature higher than the first threshold temperature .
In the alarm system according to claim 1, wherein the warning means is based on a a temperature observations of the entire case the abnormality detection signal has been received or the monitoring region from either one or a plurality of the smoke density observing means When an abnormality is detected, an abnormality alarm indicating the interlocking source is output and an abnormality interlocking signal is transmitted to the alarm means of another alarm system to output an abnormality alarm indicating the interlocking destination. An alarm system which outputs an abnormality alarm indicating an interlocking destination when an abnormality interlocking signal is received from an alarm means.
When installed in a predetermined local area in a predetermined monitoring area, the abnormal density detection signal is installed in the predetermined monitoring area when the smoke density in the predetermined local area is observed and an abnormality is detected based on the smoke density as an observation value, A smoke observation chip that outputs an abnormality alarm by observing the temperature of the entire monitoring area and transmitting an abnormality alarm when an abnormality is detected based on the observed temperature.
A smoke detector for detecting the smoke concentration of the predetermined local area and outputting a detection signal;
A circuit board having the smoke detector;
A battery for supplying power to the circuit board including the smoke detector;
A battery lid for fixing the battery in contact with a terminal fitting of the circuit board;
An attachment sheet such as a magnet sheet or an adhesive sheet for attaching the outer surface of the battery lid side to the predetermined local area;
With
The smoke detector is disposed on one surface of the circuit board unit,
The battery is disposed between the other surface of the circuit board portion and the battery lid ,
The smoke observation chip , wherein the attachment sheet is arranged around the battery lid so that the battery lid can be attached and detached .

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