JP4451630B2 - Alarm - Google Patents

Description

  The present invention uses a main power source and a backup power source as a power source, and performs a sensing process, an alarm process, and / or a transfer process for an abnormality in a monitoring area, a fire alarm, a gas leak alarm, a fire gas leak alarm, etc. Related to the alarm.

  Conventionally, in monitoring areas such as offices and ordinary houses, there have been alarm devices such as fire alarms, gas leak alarms, fire gas leak alarms, etc., that detect abnormalities such as fire and gas leaks and perform alarms and relocations. Widely used. In addition to the main power source such as an AC power source, such an alarm device is provided with a backup power source such as a battery or a battery as a power source, and power is supplied from the main power source due to power failure, disconnection, battery life, etc. It is also known that when it is cut off, it switches to a backup power source and performs sensing processing, alarm processing, and transfer processing without change.

  For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 2000-222655), a gas alarm device that detects a gas leak, incomplete combustion, or the like and gives an alarm, and is used mainly as a power source with a long-life backup battery. A power supply battery is provided, and power is normally supplied from the main power supply battery, but when the voltage of power supplied from the main power supply battery falls below a certain level, power is supplied from the backup battery. A gas alarm is disclosed.

JP 2000-222655 A

  By the way, the above-mentioned conventional technology is merely performing the same sensing process, alarm process, and transfer process without distinguishing whether the main power source is used as the power source or the backup power source as the power source, and is low in consumption. There is a problem that convenience such as power generation and safety (fail safe) is not considered at all.

  More specifically, for example, the amount of power of the backup power supply is generally small, and when the backup power supply is used (when the power supply from the main power supply is cut off due to a power failure or other trouble) In general, there is a higher possibility of fire than when using the main power source, and the situation surrounding the alarm device is greatly different between using the main power source and using the backup power source. However, the above-described conventional technology simply performs the same disaster prevention process without considering such a difference in the situation at all, so that convenience such as low power consumption and ensuring safety (fail safe) is achieved. I could not.

  Accordingly, the present invention has been made to solve the above-described problems of the prior art, and in the case where a backup power source is used as a power source instead of the main power source, convenience such as low power consumption and ensuring safety is provided. An object of the present invention is to provide an alarm device capable of achieving the above.

In order to solve the above-described problems and achieve the object, the invention according to claim 1 is an alarm device that uses a main power source and a backup power source as a power source and performs a sensing process and a transfer process for an abnormality in a monitoring area. A fire detecting means for detecting a fire, a gas leak detecting means for detecting a gas leak, and a transferring means for transferring a fire occurrence and / or a gas leak occurrence, wherein the backup power supply includes the fire detecting means. Among the gas leak detection means, power is supplied only to the fire detection means, and when the main power source is the power source, the transfer means sends a fire transfer signal to the outside when a fire is detected. When a gas leak is detected, a gas leak signal is output to the outside. When a fire is detected when the backup power source is a power source, a fire signal and And outputting the scan leakage Utsuriho signal to the outside.

The invention according to claim 2 is the invention according to claim 1, wherein the fire detection means or the gas leak detection means uses the main power source as a power source when the backup power source is a power source. It is characterized by performing a different sensing process.

The invention according to claim 3 is the invention according to claim 2, wherein the fire detection means is a heat detector for detecting a fire from heat generated by a fire, and the main power source is a power source. Senses that the ambient temperature has reached a predetermined first temperature or higher, and when the backup power supply is used as a power source, the ambient temperature is lower than the predetermined first temperature. It is characterized by detecting that the temperature of 2 or more has been reached.

The invention according to claim 4 is the invention according to claim 2, wherein the fire detection means is a smoke detector for detecting a fire from smoke generated by a fire, and the main power source is a power source. Senses that the ambient smoke density has reached a predetermined first density or more, and when the backup power supply is used as a power source, the ambient smoke density is lower than the predetermined first density. It is characterized in that it is sensed that the second concentration is reached.

The invention according to claim 5 is the invention according to claim 2, wherein the fire detection means is a smoke detector for detecting a fire from smoke generated by a fire, and the main power source is a power source. Senses that the ambient smoke concentration has reached a predetermined concentration over a predetermined first accumulation time, and when the backup power source is a power source, the ambient smoke concentration is the predetermined first accumulation time. It is characterized in that it is sensed that a predetermined concentration or more has been reached over a predetermined second accumulation time shorter than one accumulation time.

According to the first aspect of the present invention, when a backup power source is used as a power source instead of the main power source, a transfer process different from that at the time of using the main power source is performed, thereby reducing the power consumption and ensuring safety. It becomes possible to aim at sex. In addition, when using a backup power source, it is possible to ensure both safety against fire and gas leak by performing a transfer process corresponding to both without distinguishing between fire and gas leak. In particular, when the gas leak detection function is stopped and only the fire detection function is maintained, it is safer to execute the gas leak correspondence transfer process in addition to the fire detection correspondence transfer process. It becomes possible to achieve low power consumption while ensuring the reliability. In addition, the power consumption of the fire detection means is less than that of the gas leak detection means, and the possibility of fire is higher when using a backup power supply than when the backup power supply is used (when a main power supply such as an AC power In general, the possibility of fire is high, and the main power supply such as AC power supply is often disabled due to a short circuit due to a fire, etc.). Thus, it is possible to reduce power consumption without sacrificing safety.

According to the second aspect of the present invention, when a backup power source is used as a power source instead of the main power source, a low power consumption can be achieved by performing a fire detection process and a gas leak detection process different from those when the main power source is used. And convenience such as ensuring safety (fail safe).

According to a third aspect of the present invention, when a backup power source is used as a power source instead of the main power source, a backup power source having a high possibility of fire is used by lowering the reference temperature used for constant temperature fire detection. It becomes possible to detect a fire at an early stage.

According to the invention of claim 4, when a backup power source is used as a power source instead of the main power source, a backup power source having a high possibility of fire by reducing the reference concentration used for smoke detection type fire detection It becomes possible to detect a fire early in use.

Further, according to the invention of claim 5, when a backup power source is used as a power source instead of the main power source, the storage time used for the smoke detection type fire detection is shortened, so that a backup with high possibility of fire is achieved. It becomes possible to detect a fire early when using the power supply.

  Embodiments of an alarm device according to the present invention will be described below in detail with reference to the accompanying drawings. In the following, after describing the outline and features of the alarm device according to the present embodiment (1: outline and features of the alarm device), the configuration and processing contents of each part (2: the configuration and processing contents of each part of the alarm device) will be described. Finally, various modifications to the present embodiment (3: other embodiments) will be described.

[1: Outline and features of alarm device]
First, the outline and characteristics of the alarm device according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is an overall perspective view showing an external configuration of an alarm device according to the present embodiment, and FIG. 2 is a block diagram showing an internal configuration of the alarm device. In general, the alarm device 10 includes a main power source 25 that is an AC power source and a backup power source 26 that is a battery as a power source, and performs a detection process, an alarm process, and a transfer process for a fire and a gas leak. It is a gas leak alarm and is installed in a relatively small monitoring area such as a general house.

  That is, the alarm device 10 is connected to an AC power source in the home or the like via an AC power cord 19 and uses the main power source 25 as a power source in a steady state, and the fire detection unit 12 and the gas detection unit 13 When a gas leak is detected, an alarm is output using the fire alarm lamp 15 and the speaker 14, and a transfer signal is output to a fire indicator lamp, a gas shut-off valve, and the like via the transfer output unit 24. When the power supply from the main power supply 25 is cut off due to a power failure or disconnection, the backup power supply 26 is used as a power source instead of the main power supply 25.

  Here, the alarm device 10 according to the present embodiment has a main feature in processing when the backup power source 26 is used as a power source instead of the main power source 25, and is different from the sensing processing and alarm processing when the main power source 25 is used. By performing the transfer processing, it is possible to achieve conveniences such as low power consumption and safety (fail safe).

  Specifically, for example, a battery as the backup power source 26 generally has a small amount of power, and when the backup power source 26 is used (power supply from an AC power source due to a problem such as a power failure). When the main power supply 25 is used, the situation around the alarm device 10 is greatly different between the main power supply 25 and the backup power supply 26. To do. Therefore, in the alarm device 10 according to the present embodiment, as described below, the main processing described above is performed by performing different sensing processing, alarm processing, and transfer processing when the main power supply 25 is used and when the backup power supply 26 is used. The feature is realized.

  That is, when the backup power source 26 is used, the possibility of a fire is higher than a gas leak (generally, the possibility of a fire is high when the main power source 25 such as an AC power source is cut off, and a short circuit due to a fire, etc. In many cases, the main power supply 25 such as an AC power supply is disabled due to the low power consumption of the fire detection unit 12 as compared with the gas detection unit 13. By supplying power only to the fire detection unit 12 among them, it is possible to reduce power consumption without impairing safety.

  Further, in the alarm device 10 according to the present embodiment, when the backup power source 26 is used, the reference temperature used for the constant temperature type fire detection is lowered from 60 ° C. to 50 ° C. It makes it possible to detect a fire early.

  Further, since the power consumption by the buzzer sound is small compared to the voice message, the alarm device 10 according to the present embodiment eliminates the voice message ("fire") when using the backup power supply 26, and the buzzer sound (Peep). By using this alarm, it is possible to reduce power consumption without sacrificing safety. Similarly, since the power consumption due to blinking (intermittent lighting) is small compared to constant lighting, the alarm device 10 according to the present embodiment flashes instead of constantly lighting (5) when the backup power supply 26 is used. By turning on the alarm every second), it is possible to reduce power consumption without sacrificing safety.

  Further, in the alarm device 10 according to the present embodiment, when the backup power source 26 is used, by executing a gas leak compatible transfer process (gas shut-off valve closing operation) in addition to the fire detection compatible transfer process, This makes it possible to reduce power consumption while ensuring safety.

[2: Configuration and processing contents of each part of alarm device]
Next, the configuration and processing contents of each part of the alarm device 10 according to the present embodiment will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the external appearance of the alarm device 10 is as follows: a fire detection unit 12, a gas detection unit 13, a speaker 14, and various lamps (fire alarm lamp 15, CO alarm) on the front surface of a rectangular housing 11; A lamp 16, a hydrocarbon gas alarm lamp 17, and a power lamp 18), and an AC power cord 19 on the back surface of the housing 11.

  As shown in FIG. 2, the alarm device 10 includes a fire detection unit 12, a gas detection unit 13, a control unit (CPU) 20, a storage unit 21, a display unit 22, and an audio output unit. 23, a transfer output unit 24, a main power supply 25, and a backup power supply 26.

  Among these, the main power source 25 is a power source used in a steady state, and supplies power from the AC power source connected via the AC power cord 19 to all parts (all electric circuits) of the alarm device 10. Wired to On the other hand, the backup power source 26 is a power source used when the power supply from the main power source 25 is cut off due to a power failure or disconnection, such as an alkaline battery or a lithium battery.

  Here, the backup power source 26 is not wired to supply power to all parts (all electric circuits) of the alarm device 10, and power is supplied only to parts that need to be operated when the backup power source 26 is used. Wired to supply. That is, as described above, when the backup power supply 26 is used, the possibility of fire is high compared to gas leakage, and the power consumption of the fire detection unit 12 is small compared to the gas detection unit 13. Among these, internal wiring is performed so that power is supplied only to the fire detection unit 12, thereby making it possible to reduce power consumption without impairing safety. Note that the backup power source 26 may be of a type that is charged by receiving power from the main power source 25 in a steady state.

  The fire detection unit 12 is a processing unit that senses the occurrence of a fire in the monitoring area. Specifically, when the heat of the fire is detected by the thermistor, a detection signal composed of the numerical value is output to the control unit 20. The gas detection unit 13 is a processing unit that senses the generation of CO gas and hydrocarbon gas in the monitoring region. Specifically, when a gas is detected by the gas detection element, a detection signal consisting of the numerical value is sent to the control unit. 20 is output.

  The various lamps (fire alarm lamp 15, CO alarm lamp 16, hydrocarbon gas alarm lamp 17 and power lamp 18) are lit or blinked based on the control of the display unit 22, so that the functional state and detection state of the alarm device 10 are detected. It is indicator light means, such as LED which alert | reports to surroundings. The display unit 22 is a processing unit that turns on or blinks the various lamps according to an instruction from the control unit 20. The specific processing content of the display unit 22 will be described later as processing content of the control unit 20.

  The speaker 14 is a sound output means for notifying the surroundings of a detection state by the alarm device 10 by outputting a warning voice message or a buzzer sound to the monitoring area based on the control of the voice output unit 23. The voice output unit 23 is a processing unit that outputs a voice message or a buzzer sound corresponding to the occurrence of a fire or a gas leak from the speaker 14 in accordance with an instruction from the control unit 20. The specific processing content of the audio output unit 23 will be described later as the processing content of the control unit 20.

  The transfer output unit 24 outputs a fire transfer signal to a fire indicator lamp (not shown) in response to an instruction from the control unit, and also transfers gas to a microcomputer meter (not shown) as a gas control device. It is a processing unit that outputs an information signal. The specific processing content of the transfer output unit 24 will be described later as processing content of the control unit 20.

  The storage unit 21 is a storage unit (storage unit) that stores data and programs necessary for various processes performed by the control unit 20, and particularly those closely related to the present invention are illustrated in FIGS. 3-1 to 3-3. As shown in FIG. 4, a detection processing table 21a, an alarm processing table 21b, and a transfer processing table 21c are provided.

  Among these, the detection processing table 21a is a means for storing information used for detection processing by the control unit 20. Specifically, as illustrated in FIG. 3A, when the main power supply 25 is used and the backup power supply 26 is used. A threshold temperature used for determining the occurrence of a fire and a threshold concentration used for determining a gas leak are stored and classified according to use. In the detection processing table 26, the threshold concentration when the backup power source 26 is used is not stored because the gas sensing function is stopped when the backup power source 26 is used as described above. The same applies to the detection processing table 21a and the alarm processing table 21b described later.

  The alarm processing table 21b is a means for storing information used for alarm processing by the control unit 20. Specifically, as illustrated in FIG. 3-2, when the main power source 25 is used and when the backup power source 26 is used. The contents of alarm processing performed when a fire breaks out and the content of alarm processing performed when a gas leaks are stored.

  The transfer processing table 21c is means for storing information used for transfer processing by the control unit 20, and specifically, as illustrated in FIG. 3-3, when the main power supply 25 is used and the backup power supply 26 is used. The contents of the transfer process performed in the event of a fire and the contents of the transfer process performed when a gas leaks are stored.

  The control unit 20 is a processing unit that has a control program such as an OS (Operating System), a program that defines various processing procedures, and an internal memory for storing necessary data, and executes various processes using these. Particularly, those closely related to the present invention include a power supply monitoring unit 20a, a detection processing unit 20b, an alarm processing unit 20c, and a transfer processing unit 20d.

  Among these, the power supply monitoring unit 20a is a processing unit that monitors whether the power supply from the main power supply 25 has been cut off. Specifically, when the main power supply 25 is used as a power source (that is, when the power supply from the main power supply 25 is not cut off), the power lamp 18 is continuously lit through the display unit 22. Thus, the fact that the main power source 25 is used as the power source (the sensing process, the alarm process, and the transfer process when the main power source is used) is notified to the surroundings.

  On the other hand, when the power supply from the main power supply 25 is cut off, the power supply source is switched so that power is supplied from the backup power supply 26 to each part of the alarm device 10 (excluding the gas detection unit 13). At the same time, it notifies each processing unit of the control unit 20 that the backup power source 26 is being used by a flag or the like, and further blinks the power lamp 18 via the display unit 22 (lights at a predetermined interval). Notify the surroundings that the backup power source 26 is used as a power source (that is, sensing processing, alarm processing, and transfer processing are performed when the backup power source is used).

  In this way, the significance of notifying the surroundings that the backup power supply 26 is used as a power source makes it possible for the surroundings to recognize that sensing processing, alarm processing, and transfer processing different from when the main power supply 25 is used. In the point. In addition, when the backup power supply 26 is used, the meaning of the power supply notification by blinking instead of the constant lighting is that the power consumption by the blinking (intermittent lighting) is small compared to the constant lighting, but the low power consumption when using the backup power supply 26 It is in the point of enabling electric power.

  The detection processing unit 20b of the control unit 20 is a processing unit that determines whether there is a fire or a gas leak based on the detection signal input from the fire detection unit 12 or the gas detection unit 13. Specifically, when a detection signal is input from the fire detection unit 12 or the gas detection unit 13, the presence or absence of a fire is detected by comparing this with a threshold temperature or threshold concentration stored in the detection processing table 21a. Alternatively, the presence or absence of a gas leak is determined, and if it is determined that a fire or a gas leak has occurred, the fire occurrence information or the gas leak occurrence information is output to the alarm processing unit 20c.

  Here, as illustrated in FIG. 3A, the detection processing unit 20b determines whether a fire has occurred using different threshold temperatures when the main power supply 25 is used and when the backup power supply 26 is used. That is, as shown in the figure, it is determined whether or not the ambient temperature has reached 60 ° C. or higher when the main power supply 25 is used, and whether or not the ambient temperature has reached 50 ° C. or higher when the backup power source 26 is used. Determine whether.

  In this way, the significance of lowering the reference temperature used for constant temperature fire detection when using the backup power supply 26 is to enable early fire detection when using the backup power supply 26 where the possibility of fire is high.

  The alarm processing unit 20c of the control unit 20 is a processing unit that issues a fire occurrence or gas leakage occurrence alarm based on the fire occurrence information or the gas leakage occurrence information from the detection processing unit 20b. Specifically, when fire occurrence information or gas leak occurrence information is input from the detection processing unit 20b, the corresponding alarm processing content is selected from the alarm processing table 21b. Then, by controlling the display unit 22 and the audio output unit 23 so as to perform the selected alarm processing content, a predetermined audio message and buzzer sound are output from the speaker 14, and the fire alarm lamp 15, the CO alarm lamp 16, and the carbonization are output. A corresponding lamp in the hydrogen gas lamp 17 is turned on or blinked.

  Here, as illustrated in FIG. 3B, the alarm processing unit 20 c issues a fire alarm with different alarm processing contents when the main power supply 25 is used and when the backup power supply 26 is used. That is, as shown in the figure, when the main power supply 25 is used, a voice message “Fire” and a buzzer sound “Peep” are output from the speaker 14 and the fire alarm lamp 15 is continuously lit. On the other hand, when the backup power supply 26 is used, as shown in the figure, a buzzer sound “Peepy” is output from the speaker 14 and the fire alarm lamp 15 is turned on at intervals of 5 seconds.

  Thus, the meaning of eliminating the voice message and using the buzzer sound when using the backup power supply 26 is that the power consumption by the buzzer sound is small compared to the voice message, but the power consumption is reduced without sacrificing safety. The point is to make it possible. In addition, the significance of using a flashing alarm instead of constant lighting when using the backup power supply 26 is that the power consumption by flashing is small compared to the constant lighting, and it is possible to reduce the power consumption without sacrificing safety. It is in.

  The transfer processing unit 20d of the control unit 20 is a processing unit that transfers a fire occurrence or gas leak occurrence based on the fire occurrence information or the gas leak occurrence information from the detection processing unit 20b. Specifically, when fire occurrence information or gas leak occurrence information is input from the detection processing unit 20b, a corresponding transfer process is selected from the transfer process table 21c. Then, by controlling the transfer output unit 24 so as to perform the selected transfer processing content, a fire transfer signal is output to the fire indicator lamp to turn on the fire indicator lamp, and a gas shut-off valve (microcomputer) A gas transfer signal is output to the meter) to close the gas shut-off valve.

  Here, as shown in FIG. 3C, the message transfer processing unit 20d transfers a fire occurrence with different message transfer processing contents when the main power supply 25 is used and when the backup power supply 26 is used. That is, as shown in the figure, when the main power supply 25 is used, a fire signal is output to the fire indicator lamp to turn on the fire indicator lamp. On the other hand, when the backup power source 26 is used, as shown in the figure, a fire warning signal is output to the fire indicator light and a gas warning signal is output to the gas shut-off valve (microcomputer meter). Is closed.

  As described above, the significance of performing the transfer processing corresponding to both without distinguishing between fire and gas leakage when using the backup power source 26 is to ensure both safety against fire and gas leakage. In particular, when the backup power supply 26 is used and the gas leak detection function is stopped and only the fire detection function is maintained as in the present embodiment, the gas leak response is combined with the fire detection correspondence transmission process. By executing this transfer processing, it is possible to reduce power consumption while ensuring safety.

  As described above, according to the alarm device 10 according to the present embodiment, when the backup power source 26 is used as a power source instead of the main power source 25, sensing processing, alarm processing, By performing the transfer processing, it is possible to achieve conveniences such as low power consumption and ensuring safety (fail safe).

[3: Other embodiments]
Although the embodiments of the present invention have been described above, the present invention may be implemented in various different forms within the scope of the technical idea described in the claims other than the embodiments described above. It is. Therefore, as shown below, different embodiments will be described by dividing into (1) application target, (2) power supply, (3) sensing, (4) alarm and transfer, and (5) system configuration.

(1) Application target For example, in this embodiment, the case where the present invention is applied to an alarm device installed in a relatively small monitoring area such as a general house has been described, but the present invention is not necessarily limited thereto. Instead, it can be similarly applied to any alarm device provided with the main power source 25 and the backup power source 26 as power sources regardless of the installation location of the office or the like.

  In the present embodiment, the case where the present invention is applied to the alarm device 10 (see FIG. 4A) that operates independently without being connected to the other alarm devices 10 has been described, but the present invention is not necessarily limited thereto. As shown in FIG. 4-2, it is connected to other alarm devices 30 through signal lines, and a multi-connection type (interlocking type) that issues an alarm in conjunction with the detection of the other alarm devices 30. The same can be applied to the alarm device 30.

  In the present embodiment, the case where the present invention is applied to an alarm device that senses fire and gas leakage (CO gas and hydrocarbon gas) has been described. However, the present invention is not limited to this, and fire and The present invention can also be applied to an alarm device for detecting CO gas, an alarm device for detecting a fire and hydrocarbon gas leak, an alarm device for detecting only a fire, an alarm device for detecting only a gas leak, and the like.

  In the present embodiment, the case where the present invention is applied to an alarm device that senses an abnormality such as a fire or a gas leak has been described. However, the present invention is not limited to this, and a main power source and a backup power source are used as a power source. The present invention can be similarly applied to any alarm device that performs a sensing process, an alarm process, and / or a transfer process for an abnormality (for example, an intruder) in a monitoring area.

(2) Power source For example, in the present embodiment, the case where the present invention is applied to an alarm device using an AC power source as the main power source 25 and a battery as the backup power source 26 has been described, but the present invention is not limited to this. Instead, any type of power supply may be used as long as it is an alarm device having a main power supply 25 used in a steady state and a backup power supply 26 used in an emergency (emergency when the main power supply 25 cannot be used). Can do.

  Further, in the present embodiment, the case where the power supply destination of the backup power supply 26 is limited to each part other than the gas detection unit 13 is described, but the present invention is not limited to this, for example, various lamps, The same applies to the case where power is supplied to a smaller number of power supply destinations than when the main power supply 25 is used as a power source, such as stopping the power supply to a part of the transfer output unit 24 and the control unit 20. can do. As described above, the significance of limiting the supply destination of the backup power supply 26 to the minimum necessary part is to reduce the power consumption of the entire alarm device and to be safer than the case where the backup power supply 26 is supplied to all parts. This makes it possible to ensure a long period of time.

  In the present embodiment, the case where the power lamp 18 informs whether the main power supply 25 or the backup power supply 26 is used has been described. However, the present invention is not limited to this, for example, The present invention can be similarly applied to other notification modes such as notification using a separate power lamp and notification by a voice message from the speaker 14.

(3) Sensing The contents of the sensing process described in this embodiment (see FIG. 3A and the like) are examples, and the present invention is not limited to this, and the contents of the sensing process different from this. The present invention can be applied in the same way even when performing the above.

  For example, in the detection processing by the detection processing unit 20b, as illustrated in FIG. 5-1, when using the main power supply 25, a constant temperature type determination (determining whether the ambient temperature has reached a predetermined temperature or more) is performed. When the backup power source 26 is used, an operation type determination (determining whether the ambient temperature increase rate is equal to or higher than a predetermined temperature increase rate) may be performed to determine whether a fire has occurred. As described above, the significance of switching the constant temperature type fire detection to the operation type when using the backup power source 26 is to enable accurate fire detection when using the backup power source which has a high possibility of fire.

  Similarly, in the detection processing by the detection processing unit 20b, as illustrated in FIG. 5B, when the main power source 25 is used, a constant temperature type determination is performed, and when the backup power source 26 is used, a compensation type determination is performed. (Determining whether the ambient temperature has reached or exceeded the predetermined temperature, or whether the ambient temperature increase rate has exceeded the predetermined temperature increase rate) may be performed to determine whether a fire has occurred. . As described above, the significance of switching the constant temperature type fire detection to the compensation type when using the backup power source 26 is that it is possible to detect the fire with higher accuracy when using the backup power source where the possibility of fire is high.

  Moreover, although the present Example demonstrated the case where the heat detector which detects a fire from the heat which arises from a fire was employ | adopted for the fire detection part 12, this invention is not limited to this, From the smoke produced by a fire The present invention can be similarly applied to a case where a smoke detector for detecting a fire is employed in the fire detection unit 12.

  When such a smoke detector is used, for example, in the detection process by the detection processing unit 20b, as shown in FIG. 6A, when the main power supply 25 is used, the ambient smoke density is 10 (% / m ) Judge whether or not the fire has occurred by determining whether or not the ambient smoke density has reached 5 (% / m) or more when using the backup power supply 26 You may do it. As described above, when the backup power source 26 is used, the significance of lowering the reference concentration used for smoke detection type fire detection is that it is possible to detect fire early when using the backup power source 26 where the possibility of fire is high. .

  Similarly, in the detection processing by the detection processing unit 20b, as shown in FIG. 6B, when the main power supply 25 is used, the ambient smoke density is 10 (% / m / m over the accumulation time of 60 seconds. ) When the backup power supply 26 is used, it is determined whether the ambient smoke density has reached 10 (% / m) or more over an accumulation time of 10 seconds. The presence or absence of a fire may be determined. As described above, when the backup power source 26 is used, the significance of shortening the accumulation time used for the smoke detection type fire detection is that the fire can be detected at an early stage when the backup power source 26 having a high possibility of fire is used. is there.

  Further, in the detection processing by the detection processing unit 20b, as shown in FIG. 6-3, when the main power supply 25 is used, the light emitting element in the smoke detector emits light at intervals of 10 seconds to detect the smoke density, and the backup power supply 26, the presence or absence of a fire may be determined by detecting the smoke density by causing the light emitting element in the smoke detector to emit light at intervals of 20 seconds. As described above, when the backup power source 26 is used, the significance of extending the light emission period of the light emitting element used for smoke detection type fire detection is to enable low power consumption without impairing safety. In particular, when the accumulation time is shortened or zero, by extending the light emission period in conjunction therewith, it becomes possible to achieve low power consumption while ensuring safety.

  In the present embodiment, the case where the present invention is applied to the initial detection process in fire detection (so-called operation level detection process) has been described. However, the present invention is not limited to this and is not limited to this. The present invention can be similarly applied to the above-described sensing processing (so-called transfer level or interlocking level sensing processing). In other words, different judgment criteria may be used when the main power supply 25 is used and when the backup power supply 26 is used in the processing for detecting the transfer level and the interlocking level.

  In the present embodiment, the case where the present invention is applied to the sensing process (detection process) in fire detection has been described. However, the present invention is not limited to this, and for example, CO gas sensing process or hydrocarbon gas The present invention can be similarly applied to any process that senses the presence or absence of an abnormality using a predetermined criterion, such as a leak detection process. In other words, different determination criteria may be used when the main power supply 25 is used and when the backup power supply 26 is used, as long as the processing is to detect the presence or absence of abnormality using a predetermined determination criterion.

(4) Alarm and Relocation The contents of the alarm process and relocation process described in this embodiment (see FIGS. 3-2 and 3-3) are merely examples, and the present invention is limited to this. However, the present invention can be similarly applied even when the contents of alarm processing and transfer processing different from this are performed.

  Further, similarly to the above-described (3) sensing, different processing may be performed when the main power supply 25 is used and when the backup power supply 26 is used in the alarm processing and the transfer processing of the transfer level and the interlocking level. Also, in alarm processing and transfer processing for abnormalities such as CO gas and hydrocarbon gas leakage, different processing may be performed when the main power supply 25 is used and when the backup power supply 26 is used.

(5) System Configuration, etc. For example, each component of the alarm device shown in FIG. 2 is functionally conceptual and does not necessarily need to be physically configured as illustrated. In other words, the specific form of distribution / integration of each part is not limited to the one shown in the figure, and all or a part thereof may be functionally or physically distributed / integrated in arbitrary units according to various loads and usage conditions. Can be configured.

  Further, all or any part of each processing function performed by the alarm device does not necessarily have to be realized by a CPU and a program that is analyzed and executed by the CPU, but as hardware such as an electric circuit. It may be realized.

  In addition, among the processes described in this embodiment, all or part of the processes described as being performed automatically can be performed manually, or the processes described as being performed manually can be performed. All or a part can be automatically performed by a known method. In addition, for information including the processing procedure, control procedure, specific name, various data and parameters shown in the document and drawings (especially information shown in FIG. 3, FIG. 5, FIG. 6, etc.) It can be changed arbitrarily unless otherwise specified.

  The various processing methods described in the present embodiment can be realized by executing a program prepared in advance by a computer as an alarm device. This program can be distributed via a network such as the Internet. The program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk (FD), a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by a computer as an alarm device. You can also.

  As described above, the alarm device according to the present invention is useful for an alarm device that uses a main power source and a backup power source as a power source, and performs a sensing process, an alarm process, and / or a transfer process for an abnormality in a monitoring area. In particular, when a backup power source is used as a power source instead of the main power source, it is suitable for convenience such as low power consumption and ensuring safety (fail safe).

It is a whole perspective view which shows the external appearance structure of the alarm device which concerns on a present Example. It is a block diagram which shows the internal structure of the alarm device which concerns on a present Example. It is a figure which shows the structural example of the information memorize | stored in the table for a detection process. It is a figure which shows the structural example of the information memorize | stored in the alarm process table. It is a figure which shows the structural example of the information memorize | stored in the table for a transfer process. It is a figure for demonstrating the type (type | mold) of the alarm device which concerns on a present Example. It is a figure for demonstrating the type (type | mold) of the alarm device which concerns on another Example. It is a figure which shows the structural example of the information memorize | stored in the table for a detection process. It is a figure which shows the structural example of the information memorize | stored in the table for a detection process. It is a figure which shows the structural example of the information memorize | stored in the table for a detection process. It is a figure which shows the structural example of the information memorize | stored in the table for a detection process. It is a figure which shows the structural example of the information memorize | stored in the table for a detection process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Alarm 11 Case 12 Fire detection part 13 Gas detection part 14 Speaker 15 Fire alarm lamp 16 CO gas alarm lamp 17 Hydrocarbon gas alarm lamp 18 Power lamp 19 AC power cord 20 Control part (CPU)
21 Storage Unit 22 Display Unit 23 Audio Output Unit 24 Transfer Output Unit 25 Main Power Supply 26 Backup Power Supply

Claims (5)

An alarm device that uses a main power source and a backup power source as a power source and performs sensing processing and transfer processing for abnormalities in the monitoring area,
Fire detection means for detecting fire;
A gas leak detecting means for detecting gas leak;
Providing a means for transferring a fire and / or gas leak,
The backup power supply supplies power only to the fire detection means among the fire detection means and gas leak detection means,
The transfer means is:
In the case where the main power source is a power source, when a fire is detected, a fire signal is output to the outside, and when a gas leak is detected, a gas leak signal is output to the outside.
When using the backup power source as a power source, if a fire is detected, outputting a fire signal and a gas leak signal to the outside,
Alarm device characterized by. The said fire detection means or gas leak detection means performs the detection process different from the case where the said main power supply is used as a power source, when using the said backup power supply as a power source. Alarm. The fire detection means is a heat detector for detecting a fire from heat generated by a fire,
When the main power source is used as a power source, it senses that the ambient temperature has reached a predetermined first temperature or higher, and when the backup power source is used as a power source, the ambient temperature is the predetermined power source. The alarm device according to claim 2, wherein the alarm device senses that the temperature reaches a predetermined second temperature lower than the first temperature. The fire detection means is a smoke detector for detecting a fire from smoke generated by a fire,
When the main power source is a power source, it senses that the ambient smoke density has reached a predetermined first density or more, and when the backup power source is a power source, the ambient smoke density is 3. The alarm device according to claim 2, wherein the alarm is sensed when a predetermined second concentration lower than a predetermined first concentration is reached. The fire detection means is a smoke detector for detecting a fire from smoke generated by a fire,
When the main power source is used as a power source, it is sensed that the surrounding smoke concentration has reached a predetermined concentration over a predetermined first accumulation time, and the backup power source is used as a power source. 3. The alarm according to claim 2, wherein the sensor detects that the ambient smoke concentration has reached a predetermined concentration or more over a predetermined second accumulation time shorter than the predetermined first accumulation time. vessel.

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