CN201176632Y

CN201176632Y - Microwave induced auto urinal

Info

Publication number: CN201176632Y
Application number: CNU2008201071911U
Authority: CN
Inventors: 吴端龙
Original assignee: 吴端龙
Current assignee: Xiamen OLT Co.,Ltd.
Priority date: 2008-04-01
Filing date: 2008-04-01
Publication date: 2009-01-07
Anticipated expiration: 2018-04-01

Abstract

The utility model discloses a microwave induced automatic urinal, which comprises an urinal, a washing pipeline and a microwave probe, wherein the microwave probe is arranged on the back portion of urinal ceramic, the microwave probe is connected with a controller orderly through a signal treat circuit, a signal amplifying circuit and an analog-digital conversion circuit, and the controller is connected with an electromagnetic valve through a driving circuit of the electromagnetic valve. The controller is further connected with a time circuit which controls the time of washing water, and outer power supply supplies power for a whole circuit. The microwave induced automatic urinal uses doppler effect of microwave, flow objects are detected in a short distance, the detection range is about 90mm, a human body is not detected, only urine of the human body is detected, thereby preventing an error operation, simultaneously, also avoiding the defects that a surface reflects and is easy to be affected by external factors. The microwave probe is arranged on the back portion of the ceramic of the urinal, which is capable of solving the problem that the automatic induction urinal is arranged in a small space, seeper is not formed, and the microwave induced automatic urinal is not easy to be affected by tidal from a front surface.

Description

Microwave sensing automatic urinal

Technical field

The utility model relates to induction installation, more precisely be a kind of doppler phenomenon that utilizes microwave, in-plant detection flowing liquid, rather than human body, whether the people is arranged convenient thereby differentiate, determine the microwave sensing automatic urinal of whether quantitatively washing by water then.

Background technology

Existing inductive probe is based on active type infrared induction, and its operating principle is an infrared probe emission infrared rays, and by the reception to reflection, judgment object is realized feedwater or the function of cutting off the water.This infrared induction is subjected to the interference of environment easily, though used coding emission received processing program, its surface reflection is unescapable, when light or solar radiation surface, also can produce interference, and water outlet by mistake causes the waste of water resource easily.The inductive probe part is subjected to the influence of moisture easily in addition, can form ponding in probe, damages probe.And work as the people and walk about in the inductive probe front, mistake water outlet phenomenon can not appear at one's leisure yet, and on the contrary can waste water resource.

The utility model content

Technical problem to be solved in the utility model provides a kind of closely induction urine, and list is not responded to human body, can prevent the microwave sensing automatic urinal of maloperation.

In order to address the above problem, the utility model is taked following technical scheme:

A kind of microwave sensing automatic urinal, comprise urinating bucket, bath pipeline, also comprise microwave probe, signal amplification circuit, mould/number conversion circuit, controller, driving circuit for electromagnetic valve, electromagnetic valve, external power supply and, the signal processing circuit that is used to filter interfering signal and direct current signal; Be used to control first timing circuit of bath time; Described microwave probe is arranged on urinating bucket pottery back, described microwave probe connects controller by signal processing circuit, signal amplification circuit and mould/number conversion circuit successively, controller connects described first timing circuit, described controller connects described electromagnetic valve by driving circuit for electromagnetic valve, and external power supply connects described controller.

Described controller also is connected with the water transfer valve.

Described electromagnetic valve is a pulse-controlled electromagnetic valve, and the drive circuit of described electromagnetic valve comprises direct impulse drive circuit and reverse impulse drive circuit, and described controller is connected described pulse-controlled electromagnetic valve by described direct impulse drive circuit with the reverse impulse drive circuit.

Be provided with screen pack in the described bath pipeline.

Also include second timing circuit that is used for determining the lasting fluid flowing time of urinating bucket, second timing circuit connects described controller.

Also include the 3rd timing circuit that is used for determining the fluid extinction time, the 3rd timing circuit connects described controller.

The 4th timing circuit that also includes time delay after being used for determining to have washed by water, the 4th timing circuit connects described controller.

Described first timing circuit, second timing circuit, the 3rd timing circuit and the 4th timing circuit all are connected an adjustable resistance.

Described controller adopts the microcontroller chip, and described first timing circuit, second timing circuit, the 3rd timing circuit and the 4th timing circuit utilize the clock circuit of microcontroller chip internal to realize.

The beneficial effects of the utility model are: microwave sensing automatic urinal is the Doppler effect that utilizes microwave, closely detect the object that flows, detection range is about 90mm, human body not, and just detect people's urine, prevent maloperation, the drawback of simultaneously also having avoided surperficial reflection and influenced by extraneous factor, microwave probe is arranged on the ceramic back of urinating bucket, this can solve the problem that the auto-induction urinating device is installed in little space, and can not form ponding, be not subject to the influence of front moisture.

Be provided with a plurality of timing circuits, avoided the problem of mistake water outlet.

Description of drawings

Fig. 1 is the structural representation of microwave sensing automatic urinal;

Fig. 2 is the structured flowchart of control system;

Fig. 3 is the circuit theory diagrams of pulse-controlled electromagnetic valve.

The specific embodiment

For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.

At first briefly explain the principle of utilization of the present utility model.The utility model utilizes the Doppler radar principle of microwave sounding sensor, launch a low-power and receive the energy that object reflects back, in case the motion of object is detected by it, the microwave frequency that tranmitting frequency just is reflected back toward substitutes, the microwave that substitutes and the Microwave Hybrid of emission are together, a low-frequency voltage is exported from sensor as a result, by just can detect the existence of mobile object to this Signal Processing.Concrete scheme of the present utility model is as follows.

With reference to Fig. 1, a kind of microwave sensing automatic urinal comprises urinating bucket 1, bath pipeline 2 and microwave probe 3, described microwave probe 3 is arranged on urinating bucket 1 ceramic back, solve the problem of little space mounting detection probe, and can not form ponding, be not subject to the influence of front moisture.

With reference to Fig. 2, when object is mobile in area coverage (urinating bucket), signal output part at microwave probe has Doppler signal output, its output intensity is relevant with the reflected intensity of emitted energy, generally reach at microvolt, and also be mingled with noise signal and direct current signal therein, amplify and processing so must do.Microwave probe 3 can be launched a lower powered microwave and receive reflected by objects, for life-span and the reduction power consumption that prolongs miniature probe, adopt pulse mode for the power supply of microwave probe, with reference to Fig. 2, the signal that reflects is handled electricity through signal carry out the signal processing, direct current signal and interfering signal are filtered out, give signal amplification circuit then and amplify, send into the microcontroller chip through behind mould/number conversion circuit at last.The mould of microcontroller chip/number port is connected with first timing circuit, Preset Time of inner setting in the timing single channel, as 1 minute, this Preset Time is the time of control bath, described microcontroller chip connects described electromagnetic valve by driving circuit for electromagnetic valve, and electromagnetic valve is connected on the bath pipeline, and external power supply connects described microcontroller chip, promptly connect AC power, for circuit provides alternating current by the power supply adaptor among Fig. 14.

Preferably, described microcontroller chip also is connected with water transfer valve (not shown), the size of control bath current.

For power saving, described electromagnetic valve adopts pulse-controlled electromagnetic valve, pulse-controlled electromagnetic valve adopts a kind of special structure, the conversion of opening and closing two states just needs two pulses, direct impulse and reverse impulse, the width of pulse has only a few tens of milliseconds, does not need to keep electric current, reaches purpose of energy saving.Its circuit as shown in Figure 3.Wherein F1 is the forward drive circuit, F2 is the reverse drive circuit, and K is an electromagnetic valve, and forward drive circuit F1 is connected electromagnetic valve K with reverse drive circuit F2, be respectively electromagnetic valve K direct impulse and reverse impulse are provided, the output of forward drive circuit F1 is vacant state under the normal condition, and the both earth-free also positive supply that do not connect is when electromagnetic valve is opened, the pulse of microcontroller chip output forward drive, make forward drive circuit F1 output positive level, reverse drive circuit F2 ground connection, electromagnetic valve K opens.When electromagnetic valve K closed, microcontroller chip output reverse impulse made forward drive circuit F1 ground connection, and reverse drive circuit F2 exports positive level, and electromagnetic valve K is closed.

Be provided with the screen pack (not shown) in the described bath pipeline 2, prevent that current from blocking the bath pipeline and flushing out the mouth of a river.

The mould of described microcontroller chip/number port also is connected with and is used for determining that urinating bucket continues second timing circuit of fluid flowing time, utilize second timing circuit to set a scheduled time, just apprizing system enters program when the flowing time of the fluid that continues to flow reaches this Preset Time, otherwise think non-urine behavior, do not enter systemic circulation, second timing circuit prevents artificial pouring in the urinating bucket but not the bath of urine mistiming.

The mould of described microcontroller chip/number port also is useful on the 3rd timing circuit of determining the fluid extinction time, the 3rd timing circuit is also set with Preset Time, when fluid interrupts reaching this Preset Time, just control bath, otherwise do not wash by water, prevent the not intact mistake bath of urine and waste water resource.

After having dashed water when having urinated, the moment of soon having dashed, microwave probe is sensed the water that is dashed and may be judged as the someone by mistake and urinate, therefore be provided with and be used for determining to have washed by water back the 4th timing circuit of time delay, the 4th timing circuit connects the microcontroller chip, the 4th timing circuit also is provided with a Preset Time by software etc., when bath finish reach this Preset Time after just control enter next circulation, otherwise system does not enter next circulation.

Described first timing circuit, second timing circuit, the 3rd timing circuit and the 4th timing circuit are all realized timing function by the internal clock circuit of microcontroller chip, the external adjustable resistance of each timing circuit, thereby the resistance of regulating adjustable resistance changes voltage to change the Preset Time of each timing circuit, improved artificial operability, hommization more, also convenient.

Microwave sensing automatic urinal is the Doppler effect that utilizes microwave, closely detect the object that flows, detection range is (distance is adjustable) about 90mm, human body not, and just detect people's urine, prevent maloperation, the drawback of also having avoided simultaneously the reflection of infrared induction surface and influenced by extraneous factor easily, at one's leisure, urine can flow down along the surface of urinal before the people stands in urinal, utilizes the microwave probe of installing under the urinal pottery, can detect this variation, so just can produce and judge and control that when the people stopped to urinate, a period of time control electromagnetic valve of can delaying time went out a certain amount of water.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1, a kind of microwave sensing automatic urinal comprises urinating bucket, bath pipeline, it is characterized in that, also comprise microwave probe, signal amplification circuit, mould/number conversion circuit, controller, driving circuit for electromagnetic valve, electromagnetic valve, external power supply and,

Be used to filter the signal processing circuit of interfering signal and direct current signal;

Be used to control first timing circuit of bath time;

Described microwave probe is arranged on urinating bucket pottery back, described microwave probe connects controller by signal processing circuit, signal amplification circuit and mould/number conversion circuit successively, controller connects described first timing circuit, described controller connects described electromagnetic valve by driving circuit for electromagnetic valve, and external power supply connects described controller.

2, microwave sensing automatic urinal according to claim 1 is characterized in that, described controller also is connected with the water transfer valve.

3, microwave sensing automatic urinal according to claim 1, it is characterized in that, described electromagnetic valve is a pulse-controlled electromagnetic valve, the drive circuit of described electromagnetic valve comprises direct impulse drive circuit and reverse impulse drive circuit, and described controller is connected described pulse-controlled electromagnetic valve by described direct impulse drive circuit with the reverse impulse drive circuit.

4, microwave sensing automatic urinal according to claim 1 is characterized in that, is provided with screen pack in the described bath pipeline.

5, microwave sensing automatic urinal according to claim 1 is characterized in that, also includes to be used for determining that urinating bucket continues second timing circuit of fluid flowing time, and second timing circuit connects described controller.

6, microwave sensing automatic urinal according to claim 5 is characterized in that, also includes the 3rd timing circuit that is used for determining the fluid extinction time, and the 3rd timing circuit connects described controller.

7, microwave sensing automatic urinal according to claim 6 is characterized in that, also includes to be used for determining to have washed by water back the 4th timing circuit of time delay, and the 4th timing circuit connects described controller.

8, microwave sensing automatic urinal according to claim 7 is characterized in that, described first timing circuit, second timing circuit, the 3rd timing circuit and the 4th timing circuit all are connected an adjustable resistance.

9, microwave sensing automatic urinal according to claim 7, it is characterized in that, described controller adopts the microcontroller chip, and described first timing circuit, second timing circuit, the 3rd timing circuit and the 4th timing circuit utilize the clock circuit of microcontroller chip internal to realize.