JP2007179367A - Alarm - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alarm, such as a fire alarm operated by a built-in battery, at low cost without the need of extra parts, etc., while ensuring high reliability so that it is unaffected by impact, etc., and to enable the alarm to be gone into a full-scale operation mode by easily canceling a shipping mode. <P>SOLUTION: In the shipping mode, the operating status of a CPU 11 is "stop" and the power supply of a fire sensor 12 is turned off. An existing inspection switch 20 that is turned on and off by means of a push button or a pull cord is turned on to set the operating status of the CPU 11 to "high speed." If the inspection switch 20 is turned on again within five minutes after the inspection 20 has been first turned on, the shipping mode is canceled and a buzzer sound and a sound alarm are issued from an alarm speaker 6, with the power supply of the fire sensor 12 turned on. In this way, the mode is switched by means of software. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to various alarm devices such as a fire alarm device, a gas leak alarm device, and a fire gas leak alarm device that operate with a built-in battery.

  Conventionally, battery-type alarm devices are shipped in a state in which a battery is not connected because of concern about battery consumption at the time of inventory. Therefore, at the installation site, it is necessary to open the alarm battery cover, take out the battery, connect the battery connector to the connector on the circuit board, and close the battery cover again.

  In this case, there is a problem that the work of loosening the screw using a screwdriver and tightening the screw again or inserting a small connector into the connector on the board becomes a burden on the operator who installs in the field. In addition, there are problems such as loss of screws and difficulty in pushing the connector.

  As a solution to such a problem, there is an alarm device disclosed in, for example, Japanese Patent Laid-Open No. 2005-165611 (Patent Document 1). In the conventional alarm device of Patent Document 1, a lock mechanism using a spring and a magnet is activated by pulling out an inspection string, a reed switch as a power switch is turned on, and the alarm device is in full operation.

Further, for example, a configuration as shown in FIG. In FIG. 6A, a mechanical power switch 120 is provided between the battery 100 and the constant voltage circuit 110. By turning on the power switch 120, power is supplied to the CPU. The alarm goes into full operation mode. 6B, a push button switch 140 and a transistor switch 150 are provided between the battery 100 and the constant voltage circuit 110. When the push button switch 140 is pressed, power is supplied to the CPU 130, and the CPU 130 Even if the transistor switch 150 is turned on and the push button switch 140 is released, the power supply to the CPU 130 is maintained, and the alarm device enters the full operation mode.
JP 2005-165611 A

  However, in the conventional alarm device of Patent Document 1, when the mechanical lock mechanism is broken for some reason, the magnet and spring mechanism malfunctions due to some shock, or the lock is released, or the inspection string is operated. If the lock is removed for some reason, the power is turned off, and the alarm device cannot be operated. Further, there is a case where the power is turned on due to an impact during shipping and transportation, or an inspection string being caught by something, which makes no sense in terms of preventing battery consumption at the time of shipment. In addition, since a reed switch is used for power control, there is a problem that the cost of peripheral circuits and components (including a reed switch) associated therewith is excessive.

  Moreover, in the thing like FIG. 6, the power switch for exclusive use connected to the battery is required. Further, in the case of FIG. 6B, since the transistor switch 150 is controlled, there is a problem that the power consumption increases during the actual operation or the power is turned off when the CPU 130 runs out of control.

  Therefore, the present invention provides a low-cost alarm device that does not require extra parts, has high reliability that is not affected by impacts, etc., and can cancel the shipping mode with a simple operation to enter the operation mode. The task is to do.

 The alarm device according to claim 1 is an alarm device that includes a battery as a power source, operates with the battery, monitors an abnormality in the installation area, and outputs an alarm when an abnormality is detected. A switch unit operable from the outside, and a control unit that operates in accordance with a program to control the alarm device, wherein the control unit monitors an operation state of the switch unit based on a shipment mode program in a shipping mode; When a specific operation state of the switch means is detected, the operation is performed and the abnormality monitoring function and the alarm output function are achieved.

  2. The alarm device according to claim 1, wherein the controller monitors the state of the switch means programmatically, and if the switch means is operated from the outside of the main body case so as to be in a predetermined operation state determined in advance, the controller is programmed. Thus, the shipping mode is changed to the production mode. Further, since the control unit needs to react only to the operation of the switch means in the shipping mode, the battery consumption of the control unit itself is extremely small.

  The alarm device according to claim 2 is the alarm device according to claim 1, wherein the specific operation state of the switch means is a plurality of ON events within a predetermined time.

  The alarm device according to claim 3 is the alarm device according to claim 1 or 2, wherein the switch means is an inspection switch for performing an inspection operation.

  According to the alarm device of the first aspect, since the control unit changes from the shipment mode to the main operation mode programmatically, an existing switch such as an inspection switch can be used as the switch means, and no extra switch is required. Further, since it is controlled programmatically, a mechanical locking mechanism or the like is not required, and high reliability can be obtained without being affected by an impact or the like.

  According to the alarm device of the second aspect, in addition to the effect of the first aspect, the shipping mode is not changed to the actual operation mode unless it is an on-event for a plurality of times within the second predetermined time. It is possible to prevent the actual operation mode from being prepared.

  According to the alarm device of the third aspect, in addition to the effect of the first or second aspect, unnecessary parts are not required by using the inspection switch.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a main part block diagram of an alarm device according to the embodiment, and FIG. 2 is a perspective view showing the surface of the alarm device according to the embodiment. The alarm device of this embodiment is a fire alarm device, and as shown in FIG. 2, the front panel 1 a of the main body case 1 is provided with a brand seal 2 indicating the replacement time of the fire alarm device. The lower panel 1b of the main body case 1 is provided with a push button 3, a red alarm lamp 4, and a green alarm lamp 5 for turning on / off an inspection switch 20 (see FIG. 1) described later. An alarm speaker 6 is disposed inside. A pull string 7 for turning on / off the inspection switch 20 is disposed at the lower part of the main body case 1. In addition, a battery cover that covers the battery housing portion and cannot be opened and closed by a sealing seal, an interlocking connector (and a cover) that connects to an external device, and an attachment mounting portion that is used during installation are formed on the back surface of the main body case 1. ing.

  As shown in FIG. 1, this alarm device includes a CPU 11 as a control unit. The CPU 11 detects a failure of the fire sensor 12 that detects two types of smoke, and detects a failure of the fire sensor 12. A fire sensor failure monitoring circuit 13 that outputs a signal, a booster circuit failure monitoring circuit 14 that monitors a failure of the booster circuit 22, and a power supply voltage drop monitoring circuit 15 that detects a voltage drop in the booster circuit 22 and outputs a drop detection signal to the CPU 11. A display circuit 16 for turning on and off the red alarm lamp 4 and the green alarm lamp 5, a sound output circuit 17 for outputting a buzzer sound and sound by the alarm speaker 6, and a disconnection detection signal to the CPU 11 by detecting disconnection of the alarm speaker 6. Speaker disconnection monitoring circuit 18 that outputs a signal, a memory circuit 19 that stores a program executed by the CPU 11 and various setting data, and the push button 3 Test switch 20 which is turned on / off by operating the beauty drawstring 7, and a serial interface circuit 21, for performing serial communication by connecting a personal computer. The battery B is connected to the booster circuit 22 via the connector C and disposed in the main body case 1.

  Next, a schematic operation in the main operation mode by the control of the CPU 11 of the alarm device of the embodiment will be described. The CPU 11 monitors the fire sensor 12, and when the fire sensor 12 detects smoke in the event of a fire, the CPU 11 controls the display circuit 16 to flash the red alarm lamp 4 and drive the audio output circuit 17 to alarm. A fire alarm is issued with a buzzer sound and voice by the speaker 6. When another alarm device (interlock device) is connected via the interlock connector on the back of the main body case 1, an interlock signal is output at the time of a fire alarm. Further, when an interlock signal from another alarm device is received by this interlock connector, the red alarm lamp blinks and an alarm with a buzzer sound and sound is emitted.

  Further, the CPU 11 monitors the outputs of the fire sensor failure monitoring circuit 13, the booster circuit failure monitoring circuit 14, the power supply voltage drop monitoring circuit 15, and the speaker disconnection monitoring circuit 18, and when an abnormality is detected in each monitoring circuit. The abnormal contents of each function are notified by blinking of the green alarm lamp 5, a buzzer sound and a voice alarm. Further, when the inspection switch 20 is operated, inspection of equipment, confirmation of abnormal contents of functions, stop of alarm sound, and the like are performed.

  This actual operation mode is also a state before the shipment after the production and inspection of this alarm device. In this actual operation mode, a request command from the personal computer is received and set to the shipment mode. When this shipping mode is set, the alarm speaker 6 emits a buzzer sound, and the red alarm lamp 4 and the green alarm lamp 5 blink alternately.

  On the other hand, when the alarm device is installed at the installation location and the inspection switch 20 is operated with the push button 3 or the drawstring 7, the shipping mode is canceled and the operation mode is entered. When the shipping mode is canceled, the alarm speaker 6 emits a buzzer sound, the red alarm lamp 4 flashes and the alarm speaker 6 issues an audio alarm (for testing).

  Fig. 3 is a timing chart when the personal computer is set to the shipping mode before shipment. Fig. 3 (A) is normal (OK) and Fig. 3 (B) is abnormal (NG). Indicates a case. First, as shown in FIG. 3A, the operation state of the CPU 11 is “high speed”. When a shipping mode start request command is received by receiving serial communication from the personal computer, if no failure has occurred, an OK signal is transmitted to the personal computer by serial communication, and the operation mode is set from the actual operation mode to the shipping mode. In this shipping mode, the fire sensor 12 is turned off, a beep sound is sounded, and the red alarm lamp 4 and the green alarm lamp 5 blink alternately for 6 seconds. Then, the operation state of the CPU 11 is set to “stop” after the blinking is finished or the light is turned off. As shown in FIG. 3B, if a failure is occurring, an NG signal is transmitted to the personal computer, and the operating state of the CPU 11 is set to “low speed” after a predetermined time.

  That is, when the shipping mode is set, the power of the fire sensor 12 is turned off and the operation of the CPU 11 is stopped, so that the power consumption state is set. Further, the driving of the fire sensor failure monitoring circuit 13, the booster circuit failure monitoring circuit 14, the power supply voltage drop monitoring circuit 15, and the speaker disconnection monitoring circuit 18 is also stopped, and a low power consumption state is entered. However, even if the operation of the CPU 11 is stopped, when the inspection switch 20 is turned on, a forced interrupt is generated in the CPU 11 and the CPU 11 performs an interrupt process described later. Note that while the fire sensor 12 is powered off, the sensor failure input is set to output Low (low level). This is to eliminate the possibility of an increase in power consumption.

  4A and 4B are timing charts when the shipping mode is canceled. FIG. 4A shows a case where the release is valid, and FIG. 4B shows a case where the release is invalid. First, as shown in FIG. 4A, the operation state of the CPU 11 is “stop”. When the inspection switch 20 is turned on, the output signal is “Low (low level)”, and when the inspection switch 20 is turned off, the output signal is “Hi (high level)”. However, the inspection switch 20 is turned on and the output signal rises (on event). ) Causes the operating state of the CPU 11 to become “high speed” and starts an interrupt process described later. Then, time measurement for 5 seconds is started as the predetermined time, and when the falling edge of the output signal of the inspection switch 20 is detected within 5 seconds, the operation mode is set to the actual operation mode. In addition, the battery B is checked for voltage and the fire sensor 12 is checked for power, a buzzer sound and a sound alarm (for testing) are emitted from the alarm speaker 6, and the red alarm lamp 4 is flashed.

  As shown in FIG. 4 (B), if the inspection switch 20 is not operated within 5 seconds from the rising edge (ON event) of the first output signal of the inspection switch 20, the operation state of the CPU 11 becomes “stop”. The shipping mode is continued as it is.

  FIG. 5 is a flowchart of an interrupt process activated when the inspection switch 20 is first turned on (rising). When the interrupt process is started, a 5-second timer is activated in step S1, and the inspection switch 20 is activated in step S2. It is determined whether or not the output signal falls (second ON) and whether or not the 5-second timer has expired is determined in step S3.

  If the falling edge of the output signal is detected before the 5-second timer expires, the operation mode is set to the actual operation mode in step S4, the fire sensor 12 is turned on, and each monitoring circuit is driven. And Next, a buzzer sound is emitted from the alarm speaker 6 in step S5, and the rising detection of the output signal is monitored in step S7. When the rising edge of the output signal is detected, in step S8, the red alarm lamp 4 is flashed and flashed for a certain period of time, and a sound alarm (for test) is emitted from the alarm speaker 6, and the process returns from the interrupt process. The process shifts to a program for performing the operation in the production mode.

  On the other hand, if the second turn-on of the inspection switch 20 cannot be detected within 5 seconds, the operation state of the CPU 11 is set to “stop” in step S9, and the shipment mode ends.

  With the above processing, the shipping mode can be canceled and the product can be put into operation with a simple operation of installing the alarm device at the installation location and operating the inspection switch 20 twice within 5 seconds with the push button 3 or the drawstring 7. Become a mode. Further, even when the battery B is connected and built in the main body case 1, the battery B is prevented from being consumed because it is in a low power consumption state in the shipping mode. Further, since the switch means for performing the inspection operation such as the inspection switch 20, the push button 3 or the drawstring 7 is used, no extra parts are required and it is not affected by an impact or the like.

  In the above embodiment, the example in which the switch unit is operated twice within 5 seconds as the predetermined time has been described. However, the predetermined time may be 5 seconds or more and 5 seconds or less, and the number of operations (event The number) may be once or three or more times. However, multiple times are better than once because malfunctions can be prevented.

  In the embodiment, the fire alarm device has been described as an example. However, the present invention can be applied to various alarm devices such as a gas leak alarm device and a fire gas leak alarm device as long as it operates with a built-in battery.

It is a principal part block diagram of the alarm device of embodiment of this invention. It is a perspective view which shows the surface of the same alarm device. It is a timing chart when setting to the shipping mode in the embodiment. It is a timing chart when canceling the shipping mode in the embodiment. It is a flowchart of the interruption process in embodiment. It is a figure which shows an example of the circuit structure which provided the power switch connected to a battery.

Explanation of symbols

1 Body Case 3 Push Button 4 Red Alarm Lamp 5 Green Alarm Lamp 6 Alarm Speaker 7 Pull String 11 CPU
12 Fire sensor 13 Fire sensor failure monitoring circuit 14 Booster circuit failure monitoring circuit 15 Power supply voltage drop monitoring circuit 16 Display circuit 17 Audio output circuit 18 Speaker disconnection monitoring circuit 19 Memory circuit 20 Inspection switch 21 Serial interface circuit

Claims (3)

A built-in battery as a power source, operating with the battery, monitoring for abnormalities in the installation area, and outputting an alarm when an abnormality is detected,
A switch means that can be operated from outside the main body case, and a control unit that operates by a program to control the alarm device,
In the shipping mode, the control unit monitors the operation state of the switch unit based on the shipment mode program, and when the specific operation state of the switch unit is detected, the control unit is activated and outputs the abnormality monitoring function and alarm. An alarm device characterized by fulfilling its function.   The alarm device according to claim 1, wherein the specific operation state of the switch means is a plurality of ON events within a predetermined time.   The alarm device according to claim 1, wherein the switch means is an inspection switch for performing an inspection operation.

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