JP2012027959A - Alarm - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a usable, highly reliable, and inexpensive alarm in which reduction in the life of a battery between shipment by a manufacturer and setting is prevented.SOLUTION: An alarm 1 includes batteries 11 and 12; a power control unit 31 that inputs power-supply electricity output from the batteries 11 and 12, is supplied with the power-supply electricity and is set into a low power consumption mode before the start of use, is set into a normal power consumption mode when a monitor start switch 15 is operated and the low power consumption mode is cancelled at the start of use, and maintains the normal power consumption mode after the normal power consumption mode is set at the start of use; a fire detection unit 21 that stops operation in the low power consumption mode and detects abnormality in the normal power consumption mode; and a detection processing unit 33 that stops operation in the low power consumption mode and outputs an alarm signal based on a detection result of detection means in the normal power consumption mode.

Description

  The present invention relates to a battery-powered alarm device such as a so-called house alarm device that detects an abnormality such as a fire or a gas leak that occurs in a monitoring area such as an office or a general house.

  2. Description of the Related Art Conventionally, in a monitoring area such as an office or a general house, a battery-driven alarm device that detects an abnormality such as a fire or a gas leak and gives an alarm is known. The battery-driven alarm device has an advantage that it is easy to install. In this type of alarm device, for example, it is installed in the kitchen, living room, bedroom, etc. of ordinary houses and operated alone, or the alarm devices installed in each room are connected to each other (multi-connection) and interlocked. It is like that. In the case of multi-connection, for example, when an alarm device is activated in the kitchen, the alarm signal of this alarm device is sent to the alarm device in the bedroom on the second floor, and the alarm device is activated to cause a fire or gas leak in the kitchen. Etc. can be known.

  In the alarm device, various devices for reducing power consumption are performed as shown in the following patent documents.

Japanese Patent Laid-Open No. 11-175863

  The alarm device of Patent Document 1 is not a battery-driven type, but operates by being supplied with alternating current (hereinafter referred to as “AC”) power from the outside. A central processing unit (hereinafter referred to as “CPU”) that performs various processes, an oscillation unit that oscillates a clock to be supplied to the CPU, and a timer that operates the CPU by measuring a predetermined time. . In a standby state where the CPU is not executing various processes (standby state), the oscillation unit is controlled to stop the supply of the clock to the CPU. The power consumption is reduced by operating the CPU only when necessary.

  The conventional alarm device of Patent Document 1 is connected to a receiver and operates by being supplied with AC power from the outside. This alarm device can only reduce the average power consumption during the fire monitoring operation, and consumes power during the fire monitoring process. Therefore, even if the technique of Patent Document 1 is applied as it is to a battery-driven alarm device that is easy to install, a sufficient low power consumption effect cannot be obtained.

  It is desirable that the battery-powered alarm device be shipped from the manufacturer with the battery connected in consideration of simple installation and poor contact. For example, if the user has a structure in which the battery is fitted at the time of installation, the battery fitting work is troublesome from the user's point of view. In any case, it is desirable to ship with the battery connected to the manufacturer. However, if the battery is shipped in a connected state, power is consumed from the time of shipment until the battery is installed, and there is a problem that the battery life is reduced.

  Moreover, the detection part of a gas leak detection has a short life (for example, about 5 years). If the battery has been replaced if the life has passed, the alarm device may appear to function normally, but there may be a situation where gas leak detection has not actually been performed. . In order to prevent this, it is necessary to make it impossible to replace the battery and prevent the battery from being consumed from the time of shipment to the installation of the manufacturer. However, there was a problem of not taking it.

  In order to solve the conventional problem, an alarm device according to claim 1 of the present invention inputs a battery that outputs driving power, and the power supplied from the battery, and starts using the alarm. Mode setting means for previously supplying the power supply and setting to the low power consumption mode, and for releasing the low power consumption mode and setting the normal power consumption mode when the switch means is operated at the start of use. The mode setting means for maintaining the normal power consumption mode after the normal power consumption mode is set by operating the switch means at the start of use, and the operation is stopped in the low power consumption mode. Detecting means for detecting an abnormality occurring in the monitoring area during the normal power consumption mode, and stopping the operation during the low power consumption mode. The consumption mode and a detection processing unit for outputting an alarm signal based on a detection result of said detecting means.

  According to the alarm device of the first aspect of the present invention, for example, even if there is a time from shipment to installation with a battery connected from a manufacturer, the battery life is hardly shortened, and once the monitoring operation is started. It cannot be stopped easily. In addition, the conventional connector for battery connection, spring metal fittings and the like are not required, and the reliability is improved and the manufacturing cost can be reduced.

It is a schematic block diagram of the alarm device which shows Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram which shows the alarm system using the alarm device of Example 1 of this invention. It is a flowchart which shows the operation | movement of FIG.1 and FIG.2. FIG. 4 is a schematic configuration diagram showing an alarm device in which the power supply unit 10, the monitoring start switch 15, and the power supply control unit 31 of FIG. 1 are changed to other configurations.

  In the present invention, the switch means inputs the power supply power output from the driving battery, and when the switch means is turned off before the start of use, the power supply is cut off and the power supply is turned on at the start of use. When this is done, the ON state is self-maintained and the power supply is continuously supplied. The detection means is operated by the power supply continuously supplied from the switch means, and detects an abnormality occurring in the monitoring area at a predetermined cycle. The detection processing means operates with power supply continuously supplied from the switch means, compares the detection result of the detection means with a predetermined threshold value at a predetermined cycle, and warns when the detection result exceeds the threshold value. Output a signal. The alarm means is operated by the power supply continuously supplied from the switch means, generates an alarm by sound or display in response to the alarm signal output from the detection processing means, and the switch means is turned on after the alarm is generated. In response to this operation, the sound within the alarm is stopped in response to this operation.

(Constitution)
FIG. 2 is a schematic configuration diagram illustrating an alarm system using the battery-powered alarm device according to the first embodiment of the present invention.

  The alarm system includes, for example, a plurality of battery-powered alarm devices 1-1 to 1-1 installed in a relatively small monitoring area such as a kitchen, bedroom, living room, and a room in an office. N (where N is a positive integer equal to or greater than 2), and these alarm devices 1-1 to 1-N are multi-connected to each other via interlocking lead wires 2 so as to communicate with each other. Each alarm device 1-1 to 1-N is assigned a unique address.

  In such an alarm system, the alarm device (for example, 1-1) not only detects an abnormality (for example, fire or gas leak) occurring in the monitoring area and issues an alarm for itself, but also other alarm devices (for example, , 1-2 to 1-N), an alarm signal to which an alarm address or the like is added is sent, and an alarm address or the like from another alarm device (for example, 1-3) is added. The received alarm signal is received and an interlocking alarm is performed.

  FIG. 1 is a schematic configuration diagram showing each alarm device 1-1 to 1-N according to the first embodiment of the present invention in FIG.

  Each alarm device 1 (1-1 to 1-N) has the same configuration, and includes a power supply unit 10 with a built-in battery that supplies driving power to the entire alarm device, and a detection means that detects an abnormality occurring in the monitoring area For example, a fire detection unit 21 that detects the occurrence of a fire and a gas detection unit 22) that detects the occurrence of CO gas leakage are connected to a control unit 30 that controls the entire alarm device.

  The power supply unit 10 includes, for example, two batteries 11 and 12, which are connected in parallel or in series via changeover switches 13 and 14. The switch 13 has terminals 13a, 13b, and 13c that are switched and connected by a control signal S31 provided from the control unit 30. When the output voltage of the batteries 11 and 12 is high, the terminals 13a and 13b are connected by the control signal S31. When the output voltage of the batteries 11 and 12 drops below a predetermined voltage, the terminals 13a and 13c are connected by switching with the control signal S31. The switch 14 has terminals 14a, 14b, and 14c that are switched and connected by a control signal S31 provided from the control unit 30. When the output voltage of the batteries 11 and 12 is high, the terminals 14a and 14b are connected by the control signal S31. When the output voltage of the batteries 11 and 12 drops below a predetermined voltage, the terminals 14a and 14c are connected by switching with the control signal S31. Therefore, when the output voltage of the batteries 11 and 12 is high, the batteries 11 and 12 are connected in parallel by the switches 13 and 14, and when the output voltage of the batteries 11 and 12 is lower than a predetermined voltage, the switches 13 and 14 The batteries 11 and 12 are connected in series.

  A switch means (for example, a self-recovery type monitoring start switch) 15 is connected to the terminal 13 b of the switch 13, and a self-holding circuit is connected to the monitoring start switch 15. The self-holding circuit is a circuit that self-holds the ON state of the switch 15. The self-holding element (for example, thyristor) 16 connected in parallel to the switch 15 and the gate of the thyristor 16 are connected to supply a gate current. And a turn-on resistor 17.

  The fire detection unit 21 detects smoke, heat, flame, gas, or the like generated by a fire at a predetermined cycle based on the control of the control unit 30. As a specific example of the fire detection unit 21, a photoelectric sensing method using a light emitting element and a light receiving element or an ionization sensing method is used to detect the concentration of smoke generated in a fire and control this detection signal. To the unit 30. The gas detection unit 22 detects the occurrence of gas leakage of CO gas at a predetermined period based on the control of the control unit 30, and outputs this detection signal to the control unit 30.

  The control unit 30 includes a power control unit 30, a signal transmission bus 32, a detection processing unit 33 serving as a detection processing unit, an alarm processing unit 34, a sound alarm stop switch 35, an interlock processing unit 36, and a test process serving as a test processing unit. The unit 37, the test start switch 38, and the like are included, and is configured by a CPU or the like.

  The power supply control unit 31 receives the output voltage of the power supply unit 10, compares the output voltage with a predetermined threshold voltage, and detects that the output voltage has decreased below the threshold voltage, the control signal S31. And functions as a power supply control means for switching and controlling the switches 13 and 14 from the parallel connection state to the series connection state, and other functions. In the parallel connection state of the switches 13 and 14, the terminals 13a and 13b of the switch 13 are connected, the terminals 14a and 14b of the switch 14 are connected, and the two batteries 11 and 12 are connected in parallel. When the switches 13 and 14 are connected in series, the terminals 13a and 13c of the switch 13 are connected, the terminals 14a and 14c of the switch 14 are connected, and the two batteries 11 and 12 are connected in series.

  Examples of other functions of the power supply control unit 31 include functions as voltage conversion means, mode setting means, battery exhaustion alarm generation means, and the like. The voltage conversion means converts the output voltage of the power supply unit 10 into a predetermined voltage and supplies it to the internal circuit of the control unit 30. When the switch 15 is operated before the use of the alarm device 1 is started, the mode setting means sets the control unit 30 and the like to the low power consumption mode (hereinafter referred to as “power saving mode”), and when the use of the alarm device 1 is started. When the switch 15 is operated, the power saving mode is canceled and the normal power consumption mode is set. The battery exhaustion alarm generating means detects the life of the batteries 11 and 12 and generates a battery exhaustion alarm. For example, the power consumption or usage time of the batteries 11 and 12 is measured from the start of use of the alarm device 1. When the predetermined threshold value is reached, a battery exhaustion alarm is generated.

  A bus 32 is connected to the output side of the power supply control unit 30, and a detection processing unit 33, an alarm processing unit 34, an interlock processing unit 36, and a test processing unit 37 are connected to the bus 32. A sound alarm stop switch 35 is connected to the alarm processing unit 34, and a test start switch 38 is connected to the test processing unit 37.

  The detection processing unit 33 compares the detection signals from the fire detection unit 21 and the gas detection unit 22 with a predetermined threshold value, and outputs an alarm signal when the detection signal exceeds the threshold value. In response to the alarm signal output from the detection processing unit 33, the alarm processing unit 34 outputs a signal for generating an alarm by sound (for example, an alarm sound, a voice message, etc.) or a display. When the alarm stop switch 35 is operated to be turned on, processing for stopping sound is performed in response to this operation. The interlocking processing unit 36 performs processing such as adding an address to the alarm signal output from the detection processing unit 33 and decoding the alarm signal to which an address from the outside is added. The test processing unit 37 performs an alarm function test in response to the operation of the test start switch 38 at the start of use of the alarm device 1, and when the test result is normal, the fire detection unit 21 and the gas detection unit 22 A detection operation is performed, and when the test result is abnormal, a process for notifying an alarm device failure is performed.

  The control unit 30 is connected to a clock oscillating unit 40 for supplying a clock CK to the control unit 30, and a storage unit 41 is connected to the bus 32 in the control unit 30. The storage unit 41 stores various threshold values, working data, and the like backed up by a read-only memory (hereinafter referred to as “ROM”) that stores processing procedures (programs) and the like in the control unit 30 and the batteries 11 and 12. It has a volatile readable / writable memory (hereinafter referred to as “RAM”) and the like.

  A display output unit 42 and an audio output unit 45 are connected to the alarm processing unit 34, a fire alarm lamp 43 and a gas alarm lamp 44 are connected to the display output unit 42, and a speaker 46 is connected to the audio output unit 45. It is connected. The display output unit 42 drives the output signal of the alarm processing unit 34 to turn on and blink the fire alarm lamp 43 and the gas alarm lamp 44. The audio output unit 45 generates sound from the speaker 46 by driving the output signal of the alarm processing unit 34. These alarm processing unit 34, display output unit 42, fire alarm lamp 43, gas alarm lamp 44, sound output unit 45, and speaker 46 constitute an alarm means.

  An interlocking transmission / reception unit 47 is connected to the interlocking processing unit 36, and the interlocking lead wire 2 is connected to the interlocking transmission / reception unit 47. The interlocking transmission / reception unit 47 sends an alarm signal to which the address or the like output from the interlocking processing unit 36 is added to the interlocking lead wire 2 or the address of another alarm device transmitted from the interlocking lead wire 2. The alarm signal to which etc. are added is received and given to the interlocking processing unit 36.

(Operation)
FIG. 3 is a flowchart showing the monitoring operation of FIGS. 1 and 2.

(Monitoring operation of the alarm device 1 set in the power supply stop mode by the manufacturer and shipped)
When the power control unit 31 in FIG. 1 is not provided with mode setting means, monitoring operations such as the following steps ST1 to ST14 are performed.

  In step ST1, when the alarm device 1 is set in the power supply stop mode and shipped by the manufacturer, the monitor start switch 15 is turned off by the manufacturer in step ST2. At this time, as an initial state, the terminals 13a and 13b of the switch 13 are connected, the terminals 14a and 14b of the switch 14 are connected, and the two batteries 11 and 12 are connected in parallel, but the switch 15 is in the off state. Therefore, the outputs of the batteries 11 and 12 are stopped.

  In step ST3, when the alarm device 1 is installed by the user or the like and the monitoring start switch 15 is turned on, the output current of the batteries 11 and 12 flows to the resistor 17 via the switches 13 and 14 and the switch 15, The thyristor 16 is turned on by the gate current flowing through the resistor 17. Then, even if the switch 15 is self-returned and is turned off, the thyristor 16 is self-held in the on state, and the output current of the batteries 11 and 12 is supplied to the power source in the control unit 30 via the switches 13 and 14 and the thyristor 16. It is supplied to the control unit 31.

  Next, in step ST4, according to the program stored in the ROM in the storage unit 41, it is determined whether or not a test start signal is input to the test processing unit 37. If there is an input, the process proceeds to step ST5, and no input is made. Sometimes the process proceeds to step ST7. When the test start switch 38 is operated, since a test start signal is input to the test processing unit 37, the process proceeds to step ST5. At this time, a circuit configuration may be set in advance such that the test start switch 38 is turned on in conjunction with the operation of turning on the monitoring start switch 15.

  In step ST5, a function test is performed by the test processing unit 37. In the functional test, for example, a test signal (a signal similar to the detection signal of the fire detection unit 21 or the gas detection unit 22) is generated by the test processing unit 37, and whether or not a fire or a gas leak has occurred is generated based on the test signal. Is determined in a pseudo manner. If it is determined that a fire or a gas leak has occurred, a test alarm signal is output in the sense that it can operate normally and sent to the alarm processor 34. In step S6, the test result is displayed. Notification is given from the lamps 43 and 44 by the display output unit 42 or from the speaker 46 by the audio output unit 45. When the test result is abnormal, that is, when the alarm device 1 has failed, the monitoring operation is terminated, and when the test result is normal, the process proceeds to step ST7.

  In step ST7, the monitoring operation by the control unit 30 is started in accordance with the program stored in the ROM in the storage unit 41, and is predetermined by the control of the detection control unit 33 in synchronization with the clock CK supplied from the clock oscillation unit 40. Detection processing (sampling processing) of the fire detection unit 21 and the gas detection unit 22 is performed in a cycle. In step ST8, if a fire or gas leak is detected by the fire detection unit 21 or the gas detection unit 22, and the detected value is input to the detection processing unit 33, the process proceeds to step ST9. In step ST <b> 9, the detection processing unit 33 compares the detection value of the fire detection unit 21 or the gas detection unit 22 with the threshold value stored in the ROM in the storage unit 41. When the detected value is smaller than the threshold value, the process returns to step ST7. When the detected value is larger, an alarm signal is output from the detection processing unit 33, and the process proceeds to the alarm process of step ST10.

  In the alarm processing of step ST10, when the alarm signal output from the detection processing unit 33 is input to the alarm processing unit 34, information on the alarm signal (fire occurrence information and gas leak information) is processed and the display output unit 42 Or the voice output unit 45 operates, and the fire alarm lamp 43 and the gas alarm lamp 44 are lit or blinking, or an alarm sound or a voice message is output from the speaker 46. When the alarm signal output from the alarm processing unit 33 is input to the interlock processing unit 36, an address and alarm information are added to the alarm signal, and another alarm is transmitted by the interlock transmission / reception unit 47 via the interlock lead 2. Is sent to the alarm device 1 (for example, sent from the alarm device 1-1 to 1-3), and the other alarm device 1-3 performs a predetermined interlocking alarm process. In the interlocking alarm process in the other alarm devices 1-3, the alarm signal with the address and alarm information added is received by the interlocking transmission / reception unit (47), and the contents of the alarm signal are decoded by the interlocking processing unit (36). The interlocking alarm is notified from the lamps (43, 44) and the speaker (46) by the alarm processing unit (34), the display output unit (42), and the audio output unit (45).

  After alarm output is started in step ST10, it is determined in step ST11 whether or not an alarm sound stop signal is input. After the alarm output is started, the sound alarm stop switch 35 is turned on, or the sound alarm stop switch 35 is turned on in conjunction with the operation of the monitoring start switch 15 being turned on. In this case, when the monitoring start switch 15 is turned on, an alarm stop command is output from the alarm processing unit 34 in step ST12, and the operation of the display output unit 42 is continued. Only the operation stops and only the sound from the speaker 46 stops. The alarm stop command output from the alarm processing unit 34 is added with an address or the like by the interlocking processing unit 36, sent to the interlocking lead wire 2 via the interlocking transmission / reception unit 47, and sent to another alarm device 1.

  After stopping the warning sound in step ST12, the process proceeds to step ST13, where it is determined whether or not a predetermined time has elapsed by the time counting function provided in the control unit 30, and when the predetermined time has elapsed, step ST4 is performed via step ST14. Alternatively, the process returns to step 7 and the monitoring process is resumed.

(Monitoring operation of alarm device 1 shipped with the power-saving mode set by the manufacturer)
When the power supply control unit 31 of FIG. 1 is provided with mode setting means, monitoring operations such as the following steps ST21 to ST24 and ST4 to ST14 are performed.

  In step ST21, when the alarm device 1 is set in the power saving mode and shipped by the manufacturer, in step ST22, the manufacturer starts with the monitoring start switch 15 turned on. At this time, the two batteries 11 and 12 are connected in parallel by the switches 13 and 14 as an initial state, and when the monitoring switch 15 is turned on, the output current of the batteries 11 and 12 flows to the resistor 17. The thyristor 16 is turned on and the energized state is self-maintained, and the output current of the batteries 11 and 12 is supplied to the power supply control unit 31. Further, by turning on the monitoring switch 15, in conjunction with this, in step ST23, the mode setting means in the power control unit 31 is set to the power saving mode, and the control unit 30 performs the power saving mode operation. In this power saving mode operation, for example, the control signal output from the power supply control unit 31 stops the main operations of the detection processing unit 33, the alarm processing unit 34, the interlock processing unit 36, the test processing unit 37, etc. (Hibernation) and power consumption is reduced.

  In step ST24, when the alarm device 1 is installed by the user or the like and the monitoring start switch 15 is turned on, the mode setting means in the power control unit 31 is set to the normal power consumption mode in conjunction with this. For example, the main operation of the detection processing unit 33, the alarm processing unit 34, the interlock processing unit 36, the test processing unit 37, and the like is activated by the control signal output from the power supply control unit 31, and the test processing in step ST4 is started. move on. Then, the same monitoring process of steps ST4 to ST13 as described above is performed, and the process returns to step ST4 via step ST14.

(effect)
In Example 1, the following effects (a) to (n) are obtained.

  (A) In the case of the configuration of the alarm device 1 which is not provided with the mode setting means in the power supply control unit 31 of FIG. 1 and is set in the power supply stop mode by the manufacturer, the monitoring start switch 15 is turned off. Since the output current of the batteries 11 and 12 is irreversibly interrupted by the monitoring start switch 15 in the off state, until the alarm device 1 is installed by the user or the like and the monitoring start switch 15 is operated to the on state. The output current is not supplied to the control unit 30 side. Therefore, the output power of the batteries 11 and 12 is hardly consumed from the time of shipment to the start of monitoring, and the battery life is not shortened even when the batteries 11 and 12 are connected and installed after a long time after shipment. Further, since the user does not need to connect the batteries 11 and 12, it can be easily installed even by an elderly person, and more reliable than the conventional case where the batteries 11 and 12 are connected by a connector or a spring metal fitting. Is also expensive.

  (B) Since the lid of the case for storing the batteries 11 and 12 cannot be easily opened, such a structure makes it impossible to easily stop the operation by opening the lid once monitoring is started. Therefore, it is possible to prevent the operation from being stopped due to malicious intent, and to operate the device very reliably. A battery insertion / removal lid is not required, the structure of the case is simplified, and the manufacturing cost can be reduced.

  (C) In the case of the structure of the alarm device 1 provided with mode setting means in the power supply control unit 31 of FIG. 1 and set in the power saving mode by the manufacturer, the batteries 11 and 12 from the time of shipment to the time of installation are stored. Power consumption can be reduced. Moreover, at the time of installation, the power saving mode is canceled and the normal power consumption mode is set. Even in this normal power consumption mode, the sampling period for detecting an abnormality by the fire detector 21 and the gas detector 22 is lengthened. Thus, the power consumption may be reduced. Further, at the time of standby during the sampling period, the main operation of the control unit 30 and the clock oscillation unit 40 and the like are intermittently stopped by timing means or the like, or the fire detection unit 21 and the gas detection unit 22 are If the main operation of the other control unit 30 or the like is stopped and the main operation is activated by using the detection signals of the fire detection unit 21 and the gas detection unit 22 as triggers, etc. The power consumption can be further reduced.

  (D) The sound alarm stop switch 35 or the test start switch 38 in FIG. 1 is omitted, and a sound alarm stop signal is output in response to an ON operation of the monitoring start switch 15 and input to the alarm processing unit 34, or If the test start signal is output in response to the ON operation of the monitoring start switch 15 and input to the test processing unit 37, the number of switches can be reduced by sharing the monitoring start switch 15, and the operation can be simplified. Cost reduction is possible.

  (E) The test start switch 38 of FIG. 1 may be omitted, and when the alarm starter 1 is installed, when the monitoring start switch 15 is turned on, the test processing unit 37 may start the operation in response thereto. With such a configuration, when the monitoring start switch 15 is turned on after the shipment and the monitoring process is started, the function test is automatically performed, and if the test result is normal, the monitoring process is started normally. In the unlikely event of a failure, the failure is notified and the alarm device 1 is urged to be replaced. As a result, the user can recognize that the alarm device 1 has normally started the monitoring process and does not need to be aware of the presence of the monitoring start switch 15 for the test.

  (F) In FIG. 1, the batteries 11 and 12 are connected in parallel in the unmonitored state at the time of shipment. However, after the monitoring is started, the switches 13 and 14 are switched by the control signal S31 of the power supply control unit 31 as necessary. The batteries 11 and 12 may be connected in series by switching. Depending on the circuit configuration, even if a high voltage is required for monitoring, if a low voltage is sufficient during standby, the batteries 11 and 12 are connected in parallel before starting monitoring and consumed. This is because the power can be reduced and a high voltage can be obtained by connecting in series as needed after the start of monitoring.

  (G) A voltage drop detecting means is provided in the power supply control unit 31, and when the batteries 11 and 12 are normally used in parallel and the batteries 11 and 12 are consumed and the output voltage is lowered, the voltage drop is reduced. May be detected by the voltage drop detection means, and the switches 13 and 14 may be switched in series by the control signal S31 output from the voltage drop detection means. Thereby, the batteries 11 and 12 can be used efficiently.

  (H) A battery exhaustion detection function for detecting the life of the batteries 11 and 12 is provided in the control unit 30 of FIG. 1, and an alarm is issued in response to this detection signal when the battery exhaustion detection function detects battery exhaustion. The control unit 30 may be provided with a battery exhaustion alarm generating means for issuing a battery exhaustion alarm from the lamps 43 and 44 or the speaker 46 by the processing unit 34, the display output unit 42 or the audio output unit 45. For example, the battery exhaustion alarm generation unit measures power consumption or time from the start of monitoring, and outputs a battery exhaustion alarm when the integrated value or time reaches a predetermined threshold. . In such a configuration, if the power consumption from the start of monitoring is set for each operation mode and the fire detection unit 21 detects smoke using, for example, a light emitting element and a light receiving element, 10 μA in standby, It is set to 3 mA at the time of amplifier operation for amplifying the output of the fire detection unit 21, 500 mA at the time of light emission of the light emitting element, and 300 mA at the time of ringing, and the integrated value of power consumption is obtained by measuring the time for each operation mode and determined in advance. When the threshold value is reached, it is notified that the battery has run out. Some alarm devices 1 have an expiration date after installation. In this case, the monitoring time itself is added to notify the expiration date. The alarm device 1 having an expiration date is disposable because the battery cannot be replaced. Thereby, the low-cost and highly reliable alarm device 1 can be provided.

  (I) The battery low alarm generating means may be configured to stop the monitoring processing unit 34 after sending out the battery low alarm for a certain period and not to be lower than the operating voltage. According to such a configuration, after a certain time has passed after the battery is exhausted, the operation of the detection processing unit 33 and the control unit 30 including the detection processing unit 33 is stopped in order to prevent malfunction due to an extremely low battery voltage. Let As a result, power consumption can be reduced and voltage drop of the batteries 11 and 12 can be prevented. Of course, the voltage may be controlled by voltage measuring means provided in the control unit 30.

  (J) Since the set value such as the operation threshold value is stored in the RAM in the storage unit 37, the RAM data is not lost if the RAM is backed up by the batteries 11 and 12 even in the sleep mode. For this reason, conventionally, the sensitivity adjustment or the like uses a volume or stores a threshold value in a nonvolatile memory such as an EEPROM. However, in the first embodiment, since the batteries 11 and 12 can be shipped and connected, those data are stored. Can be stored in RAM. Of course, the data to be stored is not limited to sensitivity adjustment, and may be various threshold values, addresses, serial numbers, and the like.

  (K) Although the power supply unit 10 in FIG. 1 has a circuit configuration that self-holds the energization state of the monitoring start switch 15 using the thyristor 16, other self-holding elements such as a latching relay or other electronic components are used. A self-holding circuit may be configured.

  (L) FIG. 4 is a schematic diagram showing an alarm device in which the power supply unit 10, the monitoring start switch 15 and the power supply control unit 31 of FIG. It is a block diagram. In the power supply unit 10A of the alarm device, the monitoring start switch 15, the thyristor 16 and the resistor 17 which are switch means are deleted from the power supply unit 10 of FIG. 1, and the monitoring switch 15 is connected to the power supply control unit A31. The power supply control unit 31A receives the operation signal of the switch 15 and performs almost the same control as the power supply control unit 30 in FIG. Even if it changes to such a structure, there exists an effect substantially the same as Example 1. FIG.

  (M) Although two batteries 11 and 12 are used in FIG. 1, three or more of these may be provided. At this time, the number of switches 13 and 14 and the connection state may be appropriately changed according to the number of batteries.

  (N) The alarm device 1 (1-1 to 1-N) can be used alone without being multi-connected. If a single unit exclusive structure is used from the beginning, the interlocking processing unit 36 and the interlocking transmission / reception unit 47 of FIG. 1 can be omitted, thereby simplifying the structure and reducing the cost.

(Appendix 1)
A battery that outputs driving power, and
When the power supply power output from the battery is input and the power supply is turned off before the start of use, the power supply is cut off. When the power supply is turned on at the start of use, the power supply is maintained. Switch means for continuously supplying the power source,
Detecting means that operates with the power supply continuously supplied from the switch means and detects an abnormality occurring in the monitoring region at a predetermined period;
It operates with the power supply continuously supplied from the switch means, compares the detection result of the detection means with a predetermined threshold at the predetermined period, and warns when the detection result exceeds the threshold Detection processing means for outputting a signal;
It operates with the power supply continuously supplied from the switch means, generates an alarm by sound or display in response to an alarm signal output from the detection processing means, and the switch means is in an ON state after the alarm is generated. An alarm means for stopping the sound of the alarm in response to the operation;
An alarm device comprising:

(Appendix 2)
A battery that outputs driving power, and
The power supply output from the battery is supplied before the start of use and is set to the low power consumption mode. When the switch means is operated at the start of use, the low power consumption mode is canceled and the normal power consumption Mode setting means set in the mode;
Detecting means for stopping operation at the time of the low power consumption mode and detecting an abnormality occurring in the monitoring area at a predetermined period in the normal power consumption mode;
In the low power consumption mode, the operation is stopped, and in the normal power consumption mode, the detection result of the detection unit is compared with a predetermined threshold at the predetermined cycle, and the detection result exceeds the threshold. Detection processing means for outputting an alarm signal;
In the low power consumption mode, the operation is stopped, and in the normal power consumption mode, an alarm is generated by sound or display in response to an alarm signal output from the detection processing means, and the switch means is operated after the alarm is generated. A warning means for stopping the sound of the warning in response to the operation;
An alarm device comprising:

(Appendix 3)
In the alarm device described in Appendix 2,
The alarm is characterized in that the threshold value is stored in a volatile storage means backed up by the power source power of the battery.

(Appendix 4)
In the alarm device according to any one of appendices 1 to 3,
An alarm function test is performed in response to the operation of the switch means at the start of use, and the detection means is operated when the test result is normal, and when the test result is abnormal An alarm device characterized in that a test processing means for notifying is provided.

(Appendix 5)
In the alarm device according to any one of appendices 1 to 4,
A plurality of the batteries are provided, and the plurality of batteries are initially connected in a parallel state, and when it is detected that the output voltage of the plurality of batteries is lower than a predetermined voltage, the batteries are connected in a series state. An alarm device characterized by comprising power supply control means.

(Appendix 6)
In the alarm device according to any one of appendices 1 to 4,
An alarm device comprising means for detecting a battery life and issuing a battery exhaustion alarm.

(Appendix 7)
In the alarm device described in appendix 6,
The means for issuing a battery exhaustion alarm is configured to issue a battery exhaustion alarm when a predetermined threshold value is reached by measuring the power consumption or usage time of the battery from the start of use. An alarm device.

  According to the alarm devices of the inventions according to Appendices 1 to 7, for example, even if there is time to ship with a battery connected from a manufacturer and there is time to install, the battery life is hardly shortened, and the monitoring operation is started once Then it cannot be stopped easily. In addition, the conventional connector for battery connection, spring metal fittings and the like are not required, and the reliability is improved and the manufacturing cost can be reduced.

DESCRIPTION OF SYMBOLS 1,1-1-1-N Alarm 10,10A Power supply part 11,12 Battery 13,14 Switch 15 Monitoring start switch 16 Thyristor 21 Fire detection part 22 Gas detection part 30 Control part 31, 31A Power supply control part 33 Detection process Unit 34 Alarm processing unit 36 Interlocking processing unit 37 Test processing unit 41 Storage unit 42 Display output unit 43, 44 Lamp 45 Audio output unit 46 Speaker 47 Interlocking transmission / reception unit

Claims (1)

A battery that outputs driving power, and
The power source power output from the battery is input, the power source power is supplied before the start of use, and the low power consumption mode is set. When the switch unit is operated at the start of use, the low power consumption mode is set. A mode setting unit that is released and set to a normal power consumption mode, and the normal power consumption mode is maintained after the normal power consumption mode is set by operating the switch unit at the start of use. Mode setting means to
Detecting means for stopping operation at the time of the low power consumption mode and detecting an abnormality occurring in the monitoring area at the time of the normal power consumption mode;
Detection processing means for stopping operation during the low power consumption mode and outputting an alarm signal based on the detection result of the detection means during the normal power consumption mode;
An alarm device comprising:

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