JPH07143252A - Fire alarm system - Google Patents

Abstract

PURPOSE:To automatically report a corresponding message and to report information to a fire department or the like by judging the generation conditions and environmental conditions of a fire. CONSTITUTION:A radio transmission part 4 and a radio reception part 5 are turned to the transmission/reception of a spread spectrum modulation system, information from a sensor 13 is received in the radio reception part 5 of an alarm device 14 and the abnormality generation place and the degree of the abnormality are discriminated from the received information in a discrimination part 6. The environmental conditions at home or the like are set in a storage part 8 beforehand and the plural messages corresponding to the environmental conditions set in the storage part 8 and discrimination signals from the discrimination part 6 are stored in a message part 11 beforehand. Then, in a control part 7, by the discrimination signals from the discrimination part 6, the environmental conditions set in the storage part 8 are referred to, the corresponding message is read from the message part 11 and reported, a channel unit 9 is controlled and the fire department or the like is alarmed through the channel unit 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire alarm system, and more particularly to a system for automatically notifying a report destination such as a fire station depending on a situation of a fire.

[0002]

2. Description of the Related Art In a conventional fire alarm system, a sensor built in a sensor detects heat or smoke from a fire and sounds a buzzer, a bell or the like provided in the sensor, or A buzzer or a bell connected by wire to the sensor was run to inform the user. Further, the detector communicates with the security service company via the security unit, the security service company discriminates the data from the sensor, and notifies the fire department of the occurrence of the fire.

[0003]

However, when the alarm sounds cannot be heard by only ringing the buzzer or bell provided in the sensor, the house is out of the house, or it is impossible to move due to illness or the like. There is a problem in that it is not useful depending on the environmental conditions such as when it is, and the report to the fire department is delayed. Moreover, since the location of the fire is unknown, the problem is that the response is delayed. There is also a problem that when the sensor and the alarm are separated and connected by a cable, or when an abnormality occurs in the cable due to a fire or the like, information is not transmitted to the alarm. The present invention is
It is an invention made in view of the above problems, and to provide a fire notification system capable of notifying a fire station and the like while automatically notifying a corresponding message by judging a fire occurrence state and an environmental condition. To aim.

[0004]

A fire alarm system according to a first aspect of the present invention includes at least one sensor including each sensor and a wireless transmitter, a wireless receiver, and a wireless receiver. Corresponding to the discriminator that discriminates the place of occurrence of abnormality and the degree of abnormality from the stored information, the storage unit that sets the environmental conditions such as being at home in advance, the environmental condition set in the storage unit and the discrimination signal from the discrimination unit. And a message unit in which a plurality of messages are stored in advance, a line unit that is automatically connected to a predetermined external line, and a control unit that controls the determination unit, the storage unit, the message unit, and the line unit. The notification device refers to the environmental condition set in the storage unit by the determination signal from the determination unit, reads out the corresponding message from the message unit and issues the notification. It is characterized in that notification through the unit.

In the fire alarm system of the second invention of the present application, a spread code generator to which a different spread code is assigned is provided for each wireless transmission section on the side of the sensor, and the data from each sensor is spread and modulated and transmitted. Then, a spread demodulator is provided in the radio reception unit on the side of the annunciator to demodulate with a spread code assigned to each sensor, and the discriminating unit detects the location of the abnormality from the spread code. is there. A fire alarm system according to a third aspect of the present invention is characterized in that, in the fire alarm system according to the first aspect of the present invention, a flame sensor for detecting a flame is incorporated in the sensor.

[0006]

In the fire alarm system according to the first aspect of the present invention, the sensor provided with each sensor and the wireless transmitter detects an abnormality and transmits information, and the information received by the discriminator on the alarm side. From the location of the abnormality and the degree of the abnormality is determined from the storage unit that has previously set the environmental conditions such as at home in the control unit, corresponding to the environmental conditions set in the storage unit and the determination signal from the determination unit, A message section in which a plurality of messages are stored in advance is provided, and the control section refers to the environmental condition set in the storage section by the determination signal from the determination section, reads out the corresponding message from the message section, and notifies it. , It is possible to make a notification via the line unit. Therefore, the situation of a fire and the environmental conditions are judged and the corresponding message is automatically notified, and the fire department is notified. The ability.

In the fire alarm system of the second invention of the present application, a spread code generator to which a different spread code is assigned is provided for each wireless transmission unit on the sensor side, and the data from each sensor is spread and modulated and transmitted. Then, a spread demodulator is provided in the radio reception unit on the alarm side to demodulate with the spread code assigned to each sensor, and the determination unit can determine from the spread code where the information from the installed sensor is. It is possible to identify the place of fire. In the fire alarm system of the third invention of the present application, a flame sensor for detecting flame is incorporated in the sensor, and it is possible to detect the occurrence of a fire.

[0008]

FIG. 1 is a block diagram showing an embodiment of the fire alarm system of the present invention. At least one sensor 13 is provided, for example, is arranged in each room, a kitchen or the like, and each sensor 13 is provided with a heat sensor 1, a smoke sensor 2, a flame sensor 3, etc., and is connected to the wireless transmission unit 4. When an abnormality is detected by the heat sensor 1, smoke sensor 2, flame sensor 3, etc., the detection signal is input to the wireless transmission unit 4 and the detected information is transmitted from the wireless transmission unit 4. The wireless reception unit 5 of the alarm device 14 receives the information, inputs the received signal to the determination unit 6, and determines the location and extent of the abnormality from the information received by the determination unit 6.

FIG. 2 is a block diagram showing an embodiment of the wireless transmission unit 4 of FIG. 1, and FIG. 3 is a block diagram showing an embodiment of the wireless reception unit 5 of FIG. An embodiment will be described below with reference to FIG. In the wireless transmission unit 4, as shown in FIG. 2, the transmission data detected by the heat sensor 1, the smoke sensor 2 and the flame sensor 3 of FIG.
The modulator 15 modulates the carrier generated by the carrier generator 16 with transmission data, inputs the modulated data to the spread modulator 17, and spreads the spread code generated by the spread code generator assigned to the sensor 13 by the spread modulator 17. The code is spread-modulated and transmitted as a spread spectrum signal. As shown in FIG. 3, the radio receiving unit 5 receives the transmitted spread spectrum signal, spreads and demodulates the received signal by the spread demodulator 20 using the spread code generated by the spread code generator 21, and
The data is input to the demodulator 22, the demodulator 22 demodulates the information data by the carrier generated by the carrier generator 23, and the information data is output.

Information data from the demodulator 22 and the spread code generated by the spread code generator 21 are input to the discriminator 6, and the heat sensor 1 and the smoke sensor 2 use a plurality of levels of heat and smoke. When the flame sensor 3 detects a flame and sends out a detection signal as transmission data, the discriminator 6 discriminates the information data to determine the extent of the fire (whether the fire can be extinguished initially or an emergency evacuation is required). Is it the required size)
Can be determined. As a sensor to detect the occurrence of fire, in addition to the conventional heat sensor and smoke sensor,
The flame sensor 3 is provided. As the flame sensor 3, a filter for transmitting infrared rays emitted from the flame is provided in the optical system, and the light transmitted through the filter is CC
A device that can be detected by a D element or a CdS cell is used. It is possible to determine the degree of fire by the combination of the detection signals of these sensors or the detection amount.

By discriminating the spread code used for the spread demodulation of the transmitted spread spectrum signal by the discriminator 6, it is possible to discriminate where the information from the sensor 13 is installed and the place where the fire occurs. Can be specified. Transmission and reception of the spread spectrum modulation method is performed between the sensor 13 and the alarm device 14, and the spread spectrum code is P
Since the spectrum is spread by using the N code or the like, there is an effect that the influence on the interference can be reduced as compared with the normal wireless communication system.

Environmental conditions can be set in advance in the storage unit 8. When the house is away, there are sick people who are unable to move, there are only children, or people who can perform initial digestive activities. Enter environmental conditions such as when you are present. A plurality of messages can be stored in the message unit 11 in advance in response to the environmental conditions set in the storage unit 8 and the determination signal from the determination unit 6, and, for example, the location of the fire and the scale of the fire. , Remember where the sick are, where the children are, and the specific items to contact the fire department. Alternatively, a place where a fire has occurred may be assumed in advance and a message such as an evacuation route and an emergency carry-out may be stored.

The control section 7 receives the input from the discrimination section 6 and
With reference to the environmental conditions set in the storage unit 8, the corresponding message is read from the message unit 11 and the speaker 1
The alarm is issued via the buzzer 10 or the like connected to the control unit 7 while notifying via the control unit 2. Further, the control unit 7 inputs a control signal to the line unit 9, the line unit 9 is connected to a report destination such as a fire station by an auto dial, and the predetermined contact information read from the message unit 11 is transmitted via the line unit 9. To report.

FIG. 4 is a flow chart for explaining the control of the fire alarm system of the present invention. In step S1, a signal is fetched from the discriminator 6, and in step S2 the memory 8
The environmental condition set in advance is read out, it is judged whether the setting of the environmental condition is out, and if it is out, step S7.
Then, the predetermined matters for contact read out from the message section 11 are notified via the line unit 9 and the processing is ended.
If the user is at home in step S2, it is determined from the fire scale information input from the determination unit 6 in step S3 whether the range of the fire that allows the initial extinguishing activity is determined, and whether there is a person who can set the environmental condition to perform the initial extinguishing activity. Judgment, for example, if there is no child or sick person who can perform the initial fire fighting, step S
At step 6, other necessary messages, the place of fire, the evacuation method, etc. are read from the message section 11 and notified via the speaker 12, and the process proceeds to step S7 and step S7 is executed.

When the information input from the discriminating unit 6 in step S3 is the range of the fire in which the initial extinguishing activity can be performed, and there is a person who can perform the initial extinguishing activity in the environmental condition setting, the information is input from the discriminating unit 6 in the step S4. From the information of the occurrence location,
The corresponding message is read from the message section 11 to notify the place of occurrence. Then, in step S5, it is determined from the information input from the determination unit 6 whether the fire has been extinguished or the scale of the fire has expanded. If the fire has extinguished, the process ends, and if the scale of the fire has expanded, In step S6, other necessary messages such as an evacuation warning, the presence of a child or a sick person, an emergency carry-out, an evacuation method, etc. are notified, and the process proceeds to step S7 to execute step S7. Therefore, by prescribing the occurrence of a fire and storing the corresponding items in the message unit 11 and setting the environmental conditions in the storage unit 8, it is possible to appropriately process the fire according to the occurrence or progress of the fire. Is possible.

[0016]

As described above, according to the present invention,
Preliminary assumption of fire occurrence stores the corresponding items in the message section, sets environmental conditions in the storage section, automatically judges the fire occurrence situation and environmental conditions, and automatically notifies the corresponding message, Since it is possible to report to a fire department or the like, it is possible to provide a fire alarm system capable of appropriately processing according to the occurrence of a fire or the progress situation.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a fire alarm system of the present invention.

2 is a block diagram showing an embodiment of the wireless transmission unit of FIG. 1. FIG.

FIG. 3 is a block diagram showing an embodiment of the wireless reception unit of FIG.

FIG. 4 is a flowchart illustrating control of the fire alarm system of the present invention.

[Explanation of symbols]

 1 Heat Sensor 2 Smoke Sensor 3 Flame Sensor 4 Radio Transmitter 5 Radio Receiver 6 Discriminator 7 Controller 8 Memory 9 Line Unit 10 Buzzer 11 Message Part 12 Speaker 13 Sensor 14 Alarm 15 Modulator 16 Carrier Generator 17 Spreading Modulator 18 Spreading code generator 20 Spreading demodulator 21 Spreading code generator 22 Demodulator 23 Carrier wave generator

Claims (3)

[Claims] 1. An abnormal place and a degree of abnormality are discriminated from at least one sensor including each sensor and a wireless transmission unit, a wireless reception unit, and information received by the wireless reception unit. A discriminating unit, a storage unit in which environmental conditions such as at-home are set in advance, a message unit in which a plurality of messages are stored in advance in response to the environmental condition set in the storage unit and the discriminating signal from the discriminating unit, It is composed of a line unit that is automatically connected to a predetermined external line and an annunciator provided with the discrimination unit, the storage unit, the message unit and the control unit that controls the line unit. By referring to the environmental condition set in the storage unit by the discrimination signal, the corresponding message is read out from the message unit and notified, and the fire alarm system is also notified via the line unit. Stem. 2. A spread code generator, to which different spread codes are assigned, is provided in each of the wireless transmitters on the sensor side to spread-modulate and transmit data from each sensor, and wirelessly receive on the alarm side. The fire alarm system according to claim 1, wherein a spread demodulator is provided in the unit, demodulation is performed with a spread code assigned to each sensor, and the determination unit detects the location of the abnormality from the spread code. 3. The fire alarm system according to claim 1, wherein a flame sensor for detecting a flame is incorporated in the sensor.