JPH10124769A - Household disaster prevention sensor - Google Patents

Abstract

(57) [Summary] [Problem] To provide a home-use disaster prevention sensor that can detect in a simple manner that a warning signal has been output by detecting smoke or a rise in temperature, and that does not give uneasiness unnecessarily. . SOLUTION: The lighting control circuit 4 includes a sensor unit 2, a lighting control circuit 4 having an energization indicator lamp 3 for indicating whether or not power is supplied from a household power line, and a recovery switch 5. While receiving power from the household power line, the power-on indicator 3 is lit and held,
When the sensor unit 2 operates, the flashing is maintained in a predetermined flashing mode until the recovery switch 5 is operated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a household disaster prevention sensor capable of detecting a fire or the like and outputting an alarm signal by directly supplying power from a household power supply line.

[0002]

2. Description of the Related Art In recent years, home-use disaster prevention sensors have been used which can directly supply power from a home power supply to detect smoke or temperature rise in a fire and output an alarm signal. Has become.

[0003]

However, such a household disaster prevention sensor has no means for storing the detection of smoke or a rise in temperature in the event of a fire. There was a problem when doing. In order to solve such a problem, it is possible to use a configuration in which the result of detection of smoke or a rise in temperature is notified by lighting and holding the indicator light. There is a problem that a user who does not understand the meaning of the word may feel uneasy.

[0004] The present invention has been made in view of the above-mentioned conventional problems, and when returning home after being away from home,
It is an object of the present invention to provide a household disaster prevention sensor that can detect that a smoke or a rise in temperature has been detected and output an alarm signal while absent, and that does not give a user an uneasy feeling unnecessarily.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above object, and the home disaster prevention sensor according to the first aspect of the present invention detects and identifies abnormalities such as fire and temperature rise. And a lighting control circuit having an energization indicator light that is lit by receiving power supply from a household power line,
A recovery switch, wherein the lighting control circuit keeps the power-on indicator light lit when receiving power supply from the household power supply line, and operates the recovery switch when the sensor unit operates. Until that time, the flashing is maintained in a predetermined flashing mode.

According to a second aspect of the present invention, there is provided a home disaster prevention sensor which includes a sensor unit for detecting and discriminating abnormalities such as a fire and a rise in temperature, and an energization indicator light which is turned on by receiving power supply from a home power supply line. A control circuit, and a day timer means, wherein the lighting control circuit keeps the power-on indicator light lit when receiving power from the household power supply line, and a predetermined value when the sensor unit operates. In the blinking mode, the indicator lamp is blinked and held, and after a predetermined time has elapsed after the operation of the sensor unit by the timing operation of the day timer, the energization indicator lamp is returned to the original lighting state.

[0007] The home disaster prevention sensor according to claim 3 constitutes a smoke detector in which the sensor unit is a smoke detection unit. According to a fourth aspect of the present invention, there is provided a home-use disaster prevention sensor which constitutes a heat sensor using the sensor unit as a heat sensing unit. In the home disaster prevention sensor according to the fifth aspect, the recovery switch is configured as a push button switch having a built-in energization indicator.

According to a sixth aspect of the present invention, the recovery switch is provided with a drawstring attached to the recovery switch.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a home disaster prevention sensor according to an embodiment of the present invention.
FIG. 1 is a block diagram showing the internal configuration of the household disaster prevention sensor of the present invention. The home disaster prevention sensor 1 is mainly installed in a room such as a detached house, and receives a power supply from a home power supply line and a sensor unit 2 that detects and determines an abnormality such as a fire or a rise in temperature. Therefore, it has a power supply circuit 7 having an insertion plug 6, a control unit 8 composed of a CPU, a lighting control circuit 4 having an energization indicator 3, a recovery switch 5, and a speaker SP. An alarm circuit 9 that sounds is provided. Here, the lighting control circuit 4 keeps the energizing indicator light 3 lit when power is supplied from the home power supply line, and when the sensor unit 2 operates, the period until the recovery switch 5 is operated. , In a predetermined blinking mode.

FIG. 2 is a circuit block diagram of a home disaster prevention sensor (first example) 1. A 100 V voltage supplied from a home power supply line by a plug 6 is reduced to, for example, a voltage of about 15 V. The power is supplied to each unit including the control unit (CPU) 8 by the transformer 11. The control unit (CPU) 8 is connected to a light projecting unit 2a and a light receiving unit 2b of an optical sensor constituting the sensor unit 2 serving as a photoelectric smoke detector. The control unit (CPU) 8 further includes a power indicator lamp 3 and a buzzer 9A. An alarm circuit 9, a blinking oscillation circuit 4A for blinking the energizing indicator lamp 3 constituting the lighting control circuit 4, and a push button 5
A recovery switch 5 made of A is connected.

Such a home disaster prevention sensor 1 is, for example, a smoke sensor 1A shown in FIG. 3 or a heat sensor 1B shown in FIG.
It is used as a ceiling and wall surface, but may be applied to a gas leak alarm. The smoke detector 1A shown in FIG. 3 is provided with a sensor section 2 comprising a smoke detection section 2A protrudingly provided on the surface of the sensor main body 1a, and further comprises a buzzer 9A for outputting an alarm and an energization indicator light 3 comprising an LED.
And a recovery switch 5 composed of a push button switch 5A are provided on the main body. On the front surface of the sensor main body 1a, an insertion plug 6 for receiving power supply from a power supply line, a pull cord 5B attached to the recovery switch 5 are provided. Is provided. The push button switch 5A and the pull cord 5B are selectively used depending on the mounting state (the ceiling surface or the wall surface) of the sensor main body 1a.

The heat sensor 1B shown in FIG.
b, a sensor section 2 comprising a heat sensing section 2B is provided so as to protrude therefrom, and a buzzer 9A for outputting an alarm, an energization indicator light 3 comprising an LED, and a recovery switch 5 comprising a push button switch 5A are provided. On the front surface, there are provided an insertion plug 6 for receiving power supply from a power supply line, and a drawstring 5B attached to a recovery switch.

The heat sensing section 2B can detect a fire by various methods such as a constant temperature type and a differential type. The flowchart of FIG. 5 shows the basic operation of the household disaster prevention sensor 1, and the basic operation will be described next. When the plug 6 is connected to an outlet of a household power supply, power is supplied to each unit including the control unit (CPU) 8 via the power supply circuit 7, and the energization indicator lamp 3 is lit and held.

A control section (CPU) 8 constantly determines whether or not the sensor section 2 comprising the smoke detecting section 2A has detected smoke. When the sensor section 2 detects smoke, an alarm circuit 9 is provided. Is activated and an alarm is output. Then, when the recovery switch 5 is turned on while the alarm 9 is sounding, the sensor is returned to the original state, and the energization indicator 3
Keeps lighting, but the alarm sounds and the power indicator 3
Is kept blinking in a predetermined blinking mode, but the alarm stops after sounding for a predetermined time (the above steps 100 to 10).
8).

Here, the predetermined blinking mode employs a method in which the blinking is invisible at first glance, but is turned off at intervals that can be confirmed by staring.
If the light is turned off instantly about once every second to 60 seconds, it is possible to confirm that the alarm was issued without giving any anxiety because the dwellers did not find much. According to such a configuration,
Even if the end user does not know, if a specific maintenance contractor sees that it has been activated indoors (non-fire alarm) during absence, etc., and after confirming this, the recovery switch 5
Is turned on, the energization indicator lamp 3 can return to the normal lighting state.

As described above, even if the user does not know that the power-on indicator 3 has been activated, the user can know if the specific maintenance contractor sees the blinking state of the power-on indicator 3.
Can be confirmed to be operating normally, and there is no concern about the operating state. FIG. 6 shows a home disaster prevention sensor (second example) 10. The home disaster prevention sensor 10 includes a sensor unit 2 for detecting and discriminating abnormalities such as a fire and a rise in temperature, as well as recovery. The configuration is almost the same as that of the first example except that a day timer 13 is provided instead of the switch 5.

Here, the day timer means 11 operates the sensor section 2 by the time counting operation, blinks the energizing indicator lamp 3, and keeps the blinking operation for a predetermined time (for example, about 1-2 days).
Is provided to automatically return to the original energization display mode after elapse of. FIG. 7 shows a second example of a home disaster prevention sensor 1.
0 is shown in a flowchart.

When smoke is sensed by the sensor section 2 comprising the smoke sensing section 2A, an alarm is output, the energization indicator 3 flashes and the day timer 13 is set. When the recovery switch 5 is turned on while the alarm is being output, the sensor 10 is returned to the original state, and returns to the state in which the power-on indicator 3 is lit. When the alarm sounds for a predetermined time and the time is up, the power-on indicator 3 is blinked in a predetermined blinking mode until the time of the day timer 13 is up. Returns to the lighting display of the original state, and the day timer means 13 is also reset (steps 200 to 211).

In the above flow chart, the basic operation of the home disaster prevention sensor provided with a recovery switch in addition to the day timer means has been described. However, this recovery switch is not necessarily required. The blinking state of the energization indicator lamp 3 may be returned to the lighting display after a predetermined time has elapsed. In the case where the recovery switch is provided, the blinking mode can be quickly released by operating this switch 5, and the structure can be simplified when the recovery switch is not provided.

[0020]

As described above, according to the home disaster prevention sensor of the first aspect, when the sensor detects smoke, heat, or the like, the energization indicator changes from the energized state to the blinking state. Therefore, it is possible to accurately visually recognize that the sensor unit has operated.

Further, as a means for storing the alarm, an energizing indicator is used, and the energizing indicator is changed from a lighting state to a predetermined blinking mode, so that the structure is simple and the appearance can be made smart. According to the second aspect of the present invention, since the energization indicator is blinked for a predetermined time by the day timer, the structure can be simplified without the need for a recovery switch.

According to the home disaster prevention sensor of the third aspect, since the sensor section constitutes the smoke detection section, the user can determine whether or not smoke is generated indoors while the user is absent. You can check exactly when you return home. According to the home disaster prevention sensor of claim 4, since the sensor section constitutes a heat sensing section, it is used to determine whether or not heat has been generated due to a temperature rise in the room during the absence. Can be accurately confirmed when the person returns home.

According to the home disaster prevention sensor of the present invention, since the recovery switch has a built-in power supply indicator, the structure can be simplified. According to the home disaster prevention sensor of claim 6, since the recovery switch is configured as a drawstring, it is convenient when installed at a high place such as a ceiling surface.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an internal structure of a first example of a household disaster prevention sensor according to the present invention.

FIG. 2 is a circuit block diagram of the first example of a home disaster prevention sensor.

FIG. 3 is a perspective view in a case where the household disaster prevention sensor is configured by a smoke sensor.

FIG. 4 is a perspective view when the home disaster prevention sensor is configured by a heat sensor.

FIG. 5 is a flowchart showing a basic operation of the domestic disaster prevention sensor of the first example.

FIG. 6 is a block diagram showing an internal structure of a second example of a household disaster prevention sensor.

FIG. 7 is a flowchart showing a basic operation of the home disaster prevention sensor of the second example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 home disaster prevention sensor 1A smoke detector 1B heat detector 2 sensor unit 3 energization indicator 4 lighting control circuit 5 recovery switch 5A push button switch 5B drawstring 10 home disaster prevention sensor 13 day timer means

Claims (6)

[Claims] 1. A lighting device comprising: a sensor unit for detecting and discriminating an abnormality such as a fire or a rise in temperature; a lighting control circuit having an energizing indicator light for lighting upon receiving power supply from a household power line; The lighting control circuit, when receiving power from the household power line, holds the energization indicator light on and on, while the sensor unit is operating, the period until the recovery switch is operated, Household disaster prevention sensor that is configured to keep blinking in a predetermined blinking mode. 2. A lighting control circuit having a sensor unit for detecting and discriminating an abnormality such as a fire or a rise in temperature, an energizing indicator light for lighting upon receiving power supply from a household power supply line, and a day timer means. The lighting control circuit blinks the indicator light in a predetermined blinking mode when the sensor unit operates, while the power supply indicator lights and keeps the energizing indicator light lit when power is supplied from the household power supply line. A household disaster prevention sensor configured to hold the power indicator lamp to return to the original lighting and holding state after a predetermined period of time has elapsed after the operation of the sensor unit by the time operation of the day timer. 3. The domestic disaster prevention sensor according to claim 1, wherein the sensor section constitutes a smoke sensing section. 4. The domestic disaster prevention sensor according to claim 1, wherein the sensor section constitutes a heat sensing section. 5. The domestic disaster prevention sensor according to claim 1, wherein the recovery switch is configured as a push button switch having a built-in power indicator. 6. The system according to claim 1, wherein the restoration switch comprises:
Household disaster prevention sensor with a drawstring attached.