JPH0730497U - Lighting device with human body detector - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] In a device that detects the movement of the human body and turns on the lighting, a certain time before the end (turning off) of the lighting time
This is notified in advance. A human body detection unit, a timer unit that outputs a signal for a predetermined time after a detection signal is input, an illumination lamp drive unit 11 that operates only while a signal from the timer unit is input, and an illumination lamp drive Illumination lamp 1 that is continuously lit by the section 11
2 and a control unit that sends a control signal for blinking the illumination lamp to the illumination lamp driving unit 11 for a certain period of time immediately before the illumination lamp 12 is turned off, or a notification unit that generates either or both of sound and light. A configuration including a control unit that sends a control signal to the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lighting device with a human body detector that detects a human body (moving object) and turns on an illumination lamp for a preset time based on the detection signal.

[0002]

[Prior art]

 Most of the illumination devices with human body detectors that have been used conventionally use a passive differential type of human body detector called the passive infra red method. Then, the detector detects a human body (moving object), and at the same time, the illumination lamp is turned on and the lighting is continued for a preset time.

[0003]

[Problems to be solved by the device]

 In the conventional device, when the illumination lamp goes out, it suddenly disappears without any warning, and in order to turn it on again, humans need to put the detection unit in the detection state in the darkness under the light off. Had to move again. The fact that you had to move in the dark was dangerous and uncomfortable depending on your feet and surrounding conditions.

There are the following measures to solve these problems, but each has a problem. (1) The detection unit is a stationary detection type instead of a differential detection type. In other words, when a human is present in the detection area, a human body detector that continuously outputs a detection output is used, but the detector configuration becomes complicated and expensive. (2) The time set in advance so that the lighting is turned on after the human body detector detects the human body once is set to be as long as possible. However, unnecessarily lengthening this time is contrary to the concept of a lighting device with a human body detector, in which the lighting is turned on when and when it is needed. (3) The lighting time is a re-extension method (retrigger). This means that when the human body detection signal is input and the timer unit that started measurement, the time is measured again from the beginning when the next detection signal is input. Although this method has already been adopted, since human motion is small when working, etc., human body detection is often not performed after the second time.

[0005]

[Means for Solving the Problems]

 The present invention has a function of blinking a lamp a certain time before the end (turning off) of a preset lighting time, or having a function of notifying beforehand of turning off by another light emitting means or sounding means. It is a feature. When the lamp is blinked, the same effect can be obtained by blinking the lamp for a certain period of time immediately after the end (lighting out).

[0006]

[Action]

 According to this invention, since there is a notification before turning off, if you want to turn it on again, you can move during this notification time, and the problem that you have to move in the dark is solved.

[0007]

【Example】

 Hereinafter, the present invention will be described with reference to the illustrated embodiment. FIG. 1 is a block diagram of an embodiment according to the present invention. The human body detector is based on a passive infrared ray detection method, and the advance notification of turning off is performed by blinking the illumination lamp. FIG. 2 is an operation chart of the main part of FIG. Infrared rays emitted from the detection area are collected by the optical system 1 and enter the infrared detection element 2. However, since the infrared detection element 2 is a differential type, there is no moving object such as a human body in the detection area or the detection area. No output is made when the quiescent state continues after entering the inside. When a moving object such as a human body enters the detection area, the amount of infrared rays fluctuates, and a signal is output from the infrared detection element 2 according to the amount of fluctuations and transmitted to the amplifier circuit 3. The amplifier circuit 3 amplifies the signal and transmits it to the level judgment circuit 4, and when the amplified signal exceeds the threshold value set by the level judgment circuit 4, the first delay timer circuit 5 and the second delay timer circuit 5 are transmitted. The trigger signal is transmitted to the delay timer circuit 6 of.

Upon receiving the trigger signal, the first delay timer circuit 5 outputs for a preset time t1 and transmits it to the lighting circuit 8 and at the same time, the first EXCLUSIVE OR circuit (hereinafter referred to as EX.OR circuit) 7 Communicate to. On the other hand, the second delay timer circuit 6 which has received the trigger signal outputs for a preset time t2 (<t1), and the first EX. It is transmitted to the OR circuit 7. The first EX. The output from the OR circuit 7 is output for a period of time (t1-t2) from the time t2, and is transmitted to the blinking circuit 9. Blinking circuit 9 outputs a blinking signal for a period of time (t1-t2) from the time when time t2 has passed, and the second EX. It is transmitted to the OR circuit 10. The lighting circuit 8 outputs the same signal as the input, and the second EX. It is transmitted to the OR circuit 10. The second EX. The output of the OR circuit 10 causes the lamp drive circuit 11 to turn on and blink the illumination lamp 12.

FIG. 2A shows a detection signal from the level determination circuit 4 when a human body or the like enters the detection area, which is input to the first delay timer circuit 5 and the second delay timer circuit 6. . B is an output signal of a preset time t1 which is output from the first delay timer circuit 5 in response to the input of the detection signal, and this signal is the first EX. It is input to the OR circuit 7 and the lighting circuit 8. C is an output signal of a preset time t2 which is output from the second delay timer circuit 6 in response to the input of the detection signal. Input to the OR circuit 7. D is the first EX.D. which receives the output signals from the first delay timer circuit 5 and the second delay timer circuit 6. It is the output signal from the OR circuit (EX.OR circuit outputs the signal of "H" level when the two input signals are different), and the output time t2 of the second delay timer circuit 6 has elapsed. The time (t1−t2) from the time point when the output time t1 of the first delay timer circuit 5 elapses to the time point (t1−t2), and the data is input to the blinking circuit 9. E is the output of the blinking circuit 9, and the first EX. A blinking signal is issued while the input from the OR circuit 7 is present, and the second EX. It is input to the OR circuit 10. B ′ is a lighting signal from the lighting circuit 8 in response to the input of the output signal at the time t1 output from the first delay timer circuit 5. F is the second EX. This is an output signal from the OR circuit 10, receives and outputs the output signals from the lighting circuit 8 and the blinking circuit 9, and is input to the lamp drive circuit 11.

In such a configuration, by arbitrarily setting the times t1 and t2 within the range of t1> t2, the lighting time t2 and the blinking time (t1−t2) can be set arbitrarily. It will be possible. In addition, by replacing the lighting circuit 8 and the blinking circuit 9, it is possible to perform notification by the reverse operation. The above is a lighting device with a human body detector including a detection unit including an infrared detection element, an amplification circuit, and a level determination circuit, and a lamp drive circuit that operates for a signal time t1 output from the first delay timer circuit. In the above, the configuration is shown in which the lamp is blinked for a fixed time immediately before the end of the time t1. The signals for blinking the lamp are provided with two delay timer circuits and two EX. It was created by a control unit consisting of an OR circuit, a lighting circuit, and a blinking circuit. In this configuration, it is also possible to use the output of the blinking circuit to blink the separately provided display portion of the light emitting means (LED or the like) or sound the sound display portion constituted by the sound generating means (buzzer or the like). By doing so, it is possible to know whether the illumination lamp is turned off by another display means.

[0011]

[Effect of device]

 As described above in detail, according to the present invention, in the lighting device with a human body detector, it is possible to give advance notification of the extinction of the illumination before the extinction of the illumination. The problem of having to move inside is solved. Further, since it is possible to perform the operation of flashing after lighting and vice versa, the threatening effect is further improved when used as a simple security light.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is an operation chart diagram showing output waveforms of each block shown in FIG.

[Explanation of symbols]

 1. Optical system 2. Infrared detector 3. Amplifier circuit 4. Level determination circuit 5. First delay timer circuit 6. Second delay timer circuit 7. The first EX. OR circuit 8. Lighting circuit 9. Flashing circuit 10. The second EX. OR circuit 11. Lamp drive circuit 12. Lighting

Claims (2)

[Scope of utility model registration request] 1. A detection unit for detecting a motion of a human body and issuing a detection signal, a timer unit for continuously outputting a signal for a predetermined time after the detection signal from the detection unit is input, and a timer unit for outputting the signal. An illuminating lamp drive unit that operates only while a signal is input, an illuminating lamp that is continuously lit by the illuminating lamp drive unit, and a control signal for blinking the illuminating lamp for a certain period of time immediately before the illuminating lamp is turned off. An illumination device with a human body detector, comprising: a controller for sending the illumination lamp driver. 2. A detection section for detecting a movement of a human body and issuing a detection signal, a timer section for continuously outputting a signal for a predetermined time after the detection signal from the detection section is input, and a timer section for outputting the signal. An illumination lamp driving unit that operates only while a signal is input, an illumination lamp that is continuously lit by the illumination lamp driving unit, and either or both of sound and light for a certain period of time immediately before the illumination lamp is turned off. A lighting device with a human body detector, comprising: a control unit that sends a control signal to a notification unit that generates the light.