JP2002286854A - Equipment system incorporating reflection type sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an equipment system incorporating reflection type sensor the user of which can temporarily stop the function of a reflection type sensor by its own intention. SOLUTION: Equipment incorporates the reflection type sensor which is provided with a wave energy transmitting means and a wave energy receiving means and detects the presence/absence of an object by utilizing the reflected wave of a transmitted wave from the object. The equipment is also provided with an amplitude discriminating means which discriminates that an amplitude non-falling within a preset range is obtained by arranging the reflecting object in the advancing direction of the wave transmitted from the sensor and a stopping means which outputs a signal for stopping the function of the equipment in an interlocking way with the reflection type sensor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflection-type sensor-incorporated equipment system utilizing wave energy. Wave energy is from 10 KHz such as far-infrared rays, microwaves, or ultrasonic waves
It belongs to a frequency band of 100 GHz, and is particularly preferable because a microwave having a frequency of 1 GHz to 30 GHz can detect not only the presence or absence of an object but also the state of approaching or moving away.

[0002]

2. Description of the Related Art There has been proposed a system for automatically opening and closing doors and an automatic toilet cleaning system by measuring the distance and presence or absence of a human body or an object using a reflection type sensor.

For example, when a movable body detection device using radio waves is used as a human body detection device, it is effective to set the frequency band of the electromagnetic wave to be used to 1 GHz to 100 GHz. As a typical example of such a human body detection device,
A Doppler sensor using the Doppler effect by a radio wave (especially a microwave or a millimeter wave) is given. The above-mentioned Doppler sensor is applied to a traffic volume survey, an underground search, an automatic door system, a speed gun, and the like.

The principle of human body detection by a Doppler sensor using the above-described Doppler effect by radio waves is as follows (1).
It is shown by the formula.

ΔF = F _S -F _b = 2 × F _S × ν / c (1)

In the equation (1), ΔF is the Doppler frequency (about 5 to 200 Hz), and F _S is the frequency of the transmission wave (transmission frequency), which is about 10.525 GHz.
_Fb is the frequency of the reflected wave (reflection frequency), ν is the walking speed of a person, and c is the speed of light (300 × 10 ⁶ m / s).

FIG. 13 is an explanatory view of the principle of human body detection by a Doppler sensor utilizing the above-described Doppler effect by radio waves, and shows an example in which the above Doppler sensor is installed on the upper front of a male urinal. FIG. 14 is a block diagram showing a functional configuration of the Doppler sensor.

[0008] In FIG. 13, the symbol F _S is a transmission wave from the antenna of the Doppler sensor 49, and the symbol F _b is
Relative motion (pedestrian 3) generated by reflecting the transmitted wave F _S on the human body (pedestrian) 37 facing the male urinal 3
7 is a reflected wave that has been subjected to a Doppler frequency shift due to ν. As shown in FIG. 11, the reflected wave F _b is received by the receiving apparatus 41, whereas, the transmission wave F _S from the transmitter 39 is loaded into the receiving apparatus 41 as a reference signal. Then, the difference detection circuit 43, and the reflected wave F _b, is the frequency difference between the transmission wave F _S [Delta] F (Doppler frequency) is extracted as a detection signal, the bandpass filter 45
Is output through

The distance between the antenna and the human body 37 is
Since the value of ΔF is known, the position of the human body 37 can be detected because it is inversely proportional to the amplitude of the Doppler frequency ΔF. Further, by analyzing the frequency spectrum of the Doppler frequency ΔF, it is possible to detect whether the human body 37 is approaching or away from the male urinal 3 (moving direction of the human body 37). The Doppler signal (Doppler frequency) ΔF is about 67 Hz when the transmission wave F _S is 10 GHz and the walking speed ν of the human body 37 is 1 m / s.

[0010]

However, since the above-mentioned reflection type sensor reacts to the human body standing in front of the male urinal, the sensor is used every time a person stands in front of the male urinal during cleaning or the like. The cleaning water flows many times during cleaning, or the cleaning water flows when cleaning is not required.

Accordingly, an object of the present invention is to provide a reflection sensor embedded device system in which the function of the device interlocked with the reflection sensor can be stopped and returned by the user's intention in the device incorporating the reflection sensor. Is to do.

[0012]

Means for Solving the Problems and Functions / Effects The invention according to the first aspect of the present invention has been made to solve the above problems, and detects the presence or absence of an object by reflecting a transmitted wave on an object. In a device incorporating a reflection type sensor, a reflection type sensor having a wave energy transmitting unit and a wave energy receiving unit, and a reflection object disposed in a traveling direction of a transmission wave of the reflection type sensor, thereby setting a predetermined range. Amplitude judging means for judging that an outside amplitude is obtained, and stopping means for outputting a signal for stopping a function of a device interlocked with the reflective sensor based on the judgment result of the amplitude judging means. It is characterized by.

According to the above arrangement, when it is desired to temporarily stop the function of the device linked to the reflection type sensor, the reflection object is disposed in front of the reflection type sensor so that the reflected wave can be set in a predetermined range. The amplitude discriminating means judges that an outside amplitude has occurred (usually, an amplitude larger or smaller than that when a human body is detected) and temporarily stops the function of the device linked with the reflection type sensor. Is possible.

According to a second aspect of the present invention, in a device incorporating a reflection type sensor for detecting the presence or absence of an object by reflecting a transmitted wave on an object, the transmitting means and the receiving means for the wave energy are provided. A reflection-type sensor provided with: frequency-determination means for determining that a frequency outside a preset range is obtained by arranging a reflection object in a traveling direction of a transmission wave of the reflection-type sensor; and frequency-determination means. And stopping means for outputting a signal to stop the function of the device interlocked with the reflection type sensor based on the result of the determination.

According to the above configuration, when it is desired to temporarily stop the function of the device linked with the reflection type sensor, the reflection object is arranged in front of the reflection type sensor so that the reflected wave can be set in a predetermined range. Outside frequency (usually,
It is possible to determine by the frequency discriminating means that a frequency higher or lower than when a human body is detected is generated, and to temporarily stop the function of the device linked with the reflective sensor.

According to a third aspect of the present invention, there is provided an apparatus in which a reflection type sensor for detecting the presence or absence of an object is incorporated by reflecting a transmitted wave on an object. A reflection type sensor provided with an amplitude discrimination means and a frequency discrimination means for judging that an amplitude and a frequency outside a preset range are obtained by arranging a reflection object in a traveling direction of a transmission wave of the reflection type sensor And a stopping means for outputting a signal to stop the function of the device linked with the reflection sensor based on the results of the determination by the amplitude determining means and the frequency determining means.

According to the above configuration, when it is desired to temporarily stop the function of the device linked with the reflection type sensor, the reflection object is disposed in front of the reflection type sensor so that the reflection wave can be set in a predetermined range. The amplitude discriminating means and the frequency discriminating means determine that an outside amplitude and frequency have occurred (usually, a larger or smaller amplitude and frequency than when the human body is detected), and temporarily interlock with the reflection type sensor. It is possible to stop the function of the device that has been set.

According to a fourth aspect of the present invention, there is provided an apparatus incorporating a reflection type sensor for detecting the presence or absence of an object by reflecting a transmitted wave on an object. After temporarily stopping the function,
A return time until a signal for returning the function is output to the return means is set in advance.

According to the above configuration, after the function of the device linked with the reflection sensor is stopped, the function is restored after a preset time has elapsed, so that the device incorporating the reflection sensor can operate normally. Can be done. In addition, it is not necessary for the user to perform the operation of returning the device.

According to a fifth aspect of the present invention, there is provided an apparatus incorporating a reflection type sensor for detecting the presence or absence of an object by reflecting a transmitted wave on an object. After temporarily stopping the function,
A time setting unit for setting a return time until a signal for returning the function is output to the return unit is provided.

According to the above configuration, the time for temporarily stopping the function can be set by the user himself / herself, so that the time can be changed according to time and case, and the usability is improved.

According to a sixth aspect of the present invention, after temporarily stopping the function of the device linked to the reflection type sensor, the same waveform as when stopping the reception waveform of the reflection type sensor is obtained. The function is restored.

According to the above arrangement, the function of the device whose function has been temporarily stopped is restored by performing the same operation as when the function is stopped again by the user himself, so that the device can be easily restored. Becomes possible.

According to a seventh aspect of the present invention, there is provided a notifying means for notifying a user when a function of a device interlocked with the reflection type sensor is temporarily stopped.

According to the above configuration, the user can reliably recognize that the function of the device has been stopped or is stopped by the notification means, so that the current state of the device can be easily confirmed. You can work with peace of mind.

The invention according to claim 8 is characterized in that the notifying means for notifying the user when the function of the device linked with the reflection sensor is temporarily stopped is a visual means.

According to the above configuration, the user can reliably recognize that the function of the device has stopped or is stopped by the notification means, so that the user can easily confirm the current state of the device. You can work with peace of mind.
In addition, since the notification means is a visual means, it can be more clearly confirmed.

The ninth aspect of the present invention is characterized in that the notifying means notifies the user when the function of the device linked to the temporarily stopped reflection type sensor is restored.

According to the above configuration, the user can reliably recognize the return of the device by the notification means.
The current state of the device can be easily confirmed.

[0030]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing a reflection type sensor according to the present invention installed in a men's urinal. FIG. 2 is a block diagram showing an internal configuration of the reflection type sensor according to the present invention.
FIG. 3 is a waveform diagram showing a reception waveform of the reflection type sensor according to the present invention.

In the men's urinal, the transmission wave transmitted from the transmitting means of the reflection type sensor is reflected on the human body in front of the men's urinal, and is built in the men's urinal based on the received signal of the reflected wave. Opening and closing of an on-off valve (not shown) in the toilet flush water supply flow path is controlled.

Next, the reflection type sensor 1 according to the gist of the present invention will be described.
Will be described in detail. The above device performs a detection operation using wave energy, and transmits a microwave of about 10 GHz as a transmission wave.
And a receiving means 7 for receiving the reflected wave of the transmitted wave, and a difference detecting means 8 for detecting the Doppler frequency based on the frequencies of the transmitted wave and the received wave to determine the state of the object.

FIG. 4 is a block diagram showing a first specific example of the reflection type sensor according to the above configuration of the present invention.

According to this example, the reflection object 9 is arranged in the transmission direction of the transmission wave of the reflection type sensor 1 so that
The stop signal 15 is output from the stop unit 15 by determining by the amplitude determination unit 13 that an amplitude outside the preset reference amplitude 11 is obtained as shown in FIG.

FIG. 5 is a block diagram showing a second specific example of the reflection type sensor according to the above configuration of the present invention.

According to this specific example, by arranging the reflection object 9 in the transmission direction of the transmission wave of the reflection type sensor 1, it is determined that a frequency outside the preset reference frequency 19 can be obtained. By making a determination at 21, a stop signal 17 is output from the stop means 15.

FIG. 6 is a block diagram showing a third specific example of the reflection type sensor according to the above configuration of the present invention.

According to this example, by arranging the reflecting object 9 in the transmission direction of the transmission wave of the reflection type sensor 1, an amplitude and frequency outside the preset reference amplitude 11 and reference frequency 19 can be obtained. Amplitude discrimination means 1
The stop signal 15 is output from the stop means 15 based on the determination by the frequency determination means 3 and the frequency determination means 21.

According to the above configuration, the reflection object 9 having a reflectance different from that of the human body in the transmission direction of the transmission wave of the reflection type sensor 1.
(For example, a metal plate having a high reflectance or a bag filled with water absorbing microwaves), an amplitude or frequency outside the preset range can be obtained. By discriminating at 21 and outputting the stop signal 17 by the stop means 15, the function of the on-off valve in the toilet flush water supply flow path built in the male urinal 3 can be temporarily stopped.

For example, the function of the on-off valve in the toilet flush water supply channel can be stopped when cleaning the men's urinal 3 or the like.
It is possible to prevent wasteful washing water from flowing.

FIG. 7 is a block diagram showing a first return example of the reflection type sensor according to the above configuration of the present invention.

According to this return example, the stop means 15 stops the function of the device and the stop signal 17 together with the stop means 2.
3 and a reset signal is output after the preset time is counted by the timer 23.
The function of the device that has been temporarily stopped can be restored, so that the user does not need to perform a return operation.

Even if the user forgets to restore the function of the device by mistake, the device automatically returns after a preset time elapses, so that the device incorporating the reflective sensor can be operated normally. Can be.

FIG. 8 is a block diagram showing a second return example of the reflection type sensor according to the above configuration of the present invention.

According to this return example, the setting means 2 together with the stop signal 17 for stopping the function of the device by the stopping means 15 are used.
By outputting a signal to the terminal 9 and measuring the time set by the setting signal 27 and then outputting a return signal, the function of the temporarily stopped device can be returned.

Further, since the user can set the time for stopping the function of the device by himself / herself, the time can be changed according to time and case, and the usability is improved.

FIG. 9 is a block diagram showing a third return example of the reflection type sensor according to the above configuration of the present invention.

According to the present return example, the amplitude outside the range of the preset reference amplitude 11 is determined by the amplitude determining means 13, and after the function of the device is stopped by the stopping means 15, the same amplitude is received again. The amplitude judging means 13 determines that the signal has been received by the means 7 so that the return means 31
, A return signal 25 is output, and the function of the temporarily stopped device can be returned.

The fact that the same waveform is obtained after the function of the device is stopped means that the same operation is performed at the time of stopping and returning, and the user can perform the function of the device with one operation. Since the stop and the return can be performed, the stop and the return can be easily performed.

FIG. 10 is a block diagram showing a first notification example of the reflection type sensor according to the above configuration of the present invention.

According to the present notification example, a signal is output from the stopping means 15 for outputting the stop signal 17 for stopping the function of the device to the notifying means 33 for notifying the user, so that the user can operate the device. It is possible to reliably recognize that the function has been stopped or that the function is stopped, and it is possible to easily confirm the current state of the device.

FIG. 11 is a block diagram showing a second notification example of the reflection type sensor according to the above configuration of the present invention.

According to the present notification example, the notification means 3 for notifying the user whether the function of the device has been stopped or is being stopped.
Reference numeral 3 denotes a visual means 35, for example, by turning on an LED during stoppage, the state of the device can be more clearly confirmed.

FIG. 12 is a block diagram showing a third notification example of the reflection type sensor according to the above configuration of the present invention.

According to the present notification example, by outputting a signal to the notification means 33 from the return means 31 for outputting the return signal 25 for returning the function of the equipment which has been temporarily stopped, to the user, By notifying when the function of the device is stopped and returned, the user can surely confirm the state of the device, and can perform the operation with peace of mind.

[Brief description of the drawings]

FIG. 1 is a diagram showing a state in which a reflective sensor according to the present invention is installed in a men's urinal.

FIG. 2 is a block diagram showing an internal configuration of a reflection type sensor according to the present invention.

FIG. 3 is a reception waveform of the reflection type sensor according to the present invention.

FIG. 4 is a block diagram showing an internal configuration of a reflection type sensor according to a first specific example of the present invention.

FIG. 5 is a block diagram showing an internal configuration of a reflection type sensor according to a second specific example of the present invention.

FIG. 6 is a block diagram showing an internal configuration of a reflection type sensor according to a third specific example of the present invention.

FIG. 7 is a block diagram showing an internal configuration of a reflection type sensor according to a first return example of the present invention.

FIG. 8 is a block diagram showing an internal configuration of a reflection type sensor according to a second return example of the present invention.

FIG. 9 is a block diagram showing an internal configuration of a reflection type sensor according to a third return example of the present invention.

FIG. 10 is a block diagram showing an internal configuration of a reflection sensor according to a first notification example of the present invention.

FIG. 11 is a block diagram showing an internal configuration of a reflection sensor according to a second notification example of the present invention.

FIG. 12 is a block diagram showing an internal configuration of a reflective sensor according to a third notification example of the present invention.

FIG. 13 is an explanatory diagram showing the principle of human body detection by a Doppler sensor using the Doppler effect by radio waves.

FIG. 14 is a block diagram showing a functional configuration of a Doppler sensor using the Doppler effect by radio waves.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 reflective sensor 2 reflective object 3 male urinal 5 transmitting means 6 out-of-range received waveform 7 receiving means 8 difference detecting means 9 reflective object 10 normal received waveform 11 reference amplitude 13 amplitude discriminating means 15 stop means 17 stop signal 19 reference Frequency 21 Frequency discriminating means 23 Clocking means 25 Return signal 27 Setting signal 29 Setting means 31 Returning means 33 Notification means 35 Visual means 37 Movable body (human body) 39 Transmitting device 41 Receiving device 43 Difference detecting circuit 45 Band filter 47 Other transmitting device 49 Doppler sensor

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kentaro Todoroki 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka F-term (reference) 2D039 AA02 AA04 FA02 FA04 FA06 2G005 AA04 5J070 AE09 AF01 AK13 AK32 BA01

Claims (9)

[Claims] 1. A wave energy transmitting means and a receiving means, wherein a transmitted wave is reflected by an object,
In a device incorporating a reflective sensor for detecting the presence or absence of an object, it is determined that an amplitude outside a preset range can be obtained by arranging a reflective object in a traveling direction of a transmission wave of the reflective sensor. A device system incorporating a reflection type sensor, comprising: an amplitude determination unit; and a stop unit that outputs a signal to stop a function of a device linked to the reflection type sensor based on a determination result of the amplitude determination unit. . 2. A wave energy transmitting means and a receiving means, wherein a transmitted wave is reflected by an object,
In a device incorporating a reflective sensor for detecting the presence or absence of an object, by arranging the reflective object in the traveling direction of the transmission wave of the reflective sensor, it is determined that a frequency outside a preset range can be obtained. A device system with a built-in reflection sensor, comprising: a frequency discrimination unit; and a stop unit that outputs a signal to stop a function of a device linked to the reflection sensor based on a result of the discrimination by the frequency discrimination unit. . 3. A wave energy transmitting means and a wave energy receiving means, wherein a transmitted wave is reflected by an object,
In a device incorporating a reflective sensor for detecting the presence or absence of an object, by arranging the reflective object in the traveling direction of the transmission wave of the reflective sensor, it is possible to obtain an amplitude and frequency outside a preset range. Amplitude determining means and frequency determining means for determining, and stopping means for outputting a signal to stop the function of the device linked with the reflection sensor based on the determination result of the amplitude determining means and the frequency determining means. Characterized by a reflective sensor embedded device system. 4. A return time from when the function of the device linked to the reflection type sensor is stopped to when a signal for returning the function is output to the return means is set in advance. The device system according to claim 1, wherein the reflection-type sensor is incorporated. 5. An apparatus system according to claim 4, further comprising a time setting means for setting said return time. 6. After stopping the function of the device linked to the reflection type sensor and returning the function of the device linked to the reflection type sensor when a waveform similar to that obtained when the function is stopped again is obtained. The reflective sensor-embedded device system according to any one of claims 1 to 5, characterized in that: 7. The system according to claim 1, further comprising: a notifying unit for notifying that the function of the device linked with the reflection type sensor is stopped or stopped when stopping the function of the device. Item 7. The reflection-type sensor-incorporated device system according to any one of items 7 to 6. 8. The apparatus according to claim 7, wherein said notifying unit is a visual unit. 9. The reflection device according to claim 7, wherein, when the function of the device linked with the reflection type sensor is restored, the notifying unit notifies the user of the restoration. Type sensor embedded device system.