CN101619589A - Water flushing control system - Google Patents
Water flushing control system Download PDFInfo
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- CN101619589A CN101619589A CN200910162392A CN200910162392A CN101619589A CN 101619589 A CN101619589 A CN 101619589A CN 200910162392 A CN200910162392 A CN 200910162392A CN 200910162392 A CN200910162392 A CN 200910162392A CN 101619589 A CN101619589 A CN 101619589A
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Abstract
The invention relates to a water flushing control system which comprises a control module, an ultrasonic wave generator, an ultrasonic wave receiver, a frequency-selecting and filtering module and a valve drive module, wherein the control module is used for sending a control signal to control the start and the working efficiency of the ultrasonic wave generator and the on-off of the valve drive module; the ultrasonic wave generator sends out ultrasonic waves with a specific frequency according to the received control signal from the control module; the ultrasonic wave receiver generates an electric pulse signal which expresses an ultrasonic wave signal; the frequency-selecting and filtering module extracts the electric signal of the ultrasonic wave signal corresponding to a specific frequency range; and the valve drive module turns on or off a water flushing valve. The system can carry out accurate distance measurement of a human body by using low power consumption and judge the state of the human body according to a measurement result so as to perform a corresponding water flushing action. Compared with products of the same class, the system has fewer devices, more reliable operation performance and lower power consumption and greatly reduces the probability of occurrence of mistake water flushing actions and leaked water flushing actions.
Description
Technical field
The present invention relates to the ultrasonic measurement control technology, more specifically, the present invention relates to a kind of based on hyperacoustic bath control system.
Background technology
The auto-flushing control appliance of the urinal in the current rest room, toilet all adopts infrared sensor to carry out the induction identification of human body, and uses electromagnetic valve as the water outlet control device.Certain distance or when squatting on toilet before standing on urinal, trigger infrared sensor, the control infrared sensor sends infrared signal and reflexes to control appliance, after the induction object leaves, infrared sensor stops to send infrared signal, returns to detected state.Control appliance sends pulse signal and drives the solenoid control water outlet and keep a period of time.
There is significant difference in infrared sensor to the launching effect of unlike material, materials of different colors, can realize the identification of longer distance for the object of smooth finish surface or light color, and can only carry out in-plant identification for rough surface and dark object, because can't carry out in the complex environment identification accurately and effectively to the people of difference dress, flush action or because the mistake flush action of people's process often appear leaking in actual applications.
In addition, because the bath control appliance of infrared sensor all is that continuous infrared signal is counted, in case in use human body rocks and leaves coverage, the infrared signal pop-off then also can cause erroneous judgement to break and bath for no reason.And fluorescence lamp commonly used also may produce infrared sensor and disturb, and takeing for is the infrared detection signal that returns from human body, and influences the operate as normal of infrared sensor, produces the mistake flush action.
Summary of the invention
Poor for the recognition effect that overcomes existing bath control appliance based on infrared sensor, control coarse defective, the present invention proposes a kind of based on hyperacoustic bath control system.
According to an aspect of the present invention, proposed a kind of bath control system, it is characterized in that, having comprised: control module, supersonic generator, ultrasonic receiver, frequency-selecting and filtering module and valve driving module;
Wherein, startup and operating frequency that described control module is used to transmit control signal and controls supersonic generator, and response is from the signal of the expression human body range information of described frequency-selecting and filtering module reception, the opening and closing of by-pass valve control driver module;
Described supersonic generator is connected with control module, is used for sending the ultrasonic wave of CF according to the control signal that receives from described control module;
Described ultrasonic receiver is used to receive the ultrasonic signal that returns from human body, produces the electric impulse signal of the described ultrasonic signal of expression;
Described frequency-selecting and filtering module links to each other with described ultrasonic receiver, is used to receive the described electric impulse signal from described ultrasonic receiver, extracts the signal of telecommunication corresponding to the ultrasonic signal of particular frequency range;
Described valve driving module with shown in control module link to each other, be used for opening or close flush valve according to the control signal that is received from described control module.
The described control module control system intermittent work that transmits control signal, described control module is controlled described supersonic generator intermittence and is carried out human detection.
Described intermittent work or the intermittent blanking time of detecting are 1 second, 2 seconds or greater than 2 seconds.
The operating frequency intermittence that described supersonic generator is set according to described control module is sent the ultrasonic wave of 40KHz, and wherein, set based on the frequency of utilization of equipment and the cleannes of natural environment blanking time.
Described control module is set operating distance, effectively judges in this operating distance scope.
Described control module is determined the variable in distance of human body according to the distance and the described operating distance of the ultrasonic pulse correspondence of returning, and judges human body and walks close to or leave; Described control module selects human body to leave in the process control bath or human body leaves described operating distance scope inner control bath fully.
Basis was from sending described control signal calculates human body to the time that receives echo distance after described control module received filtered electric impulse signal; Described control module is furnished with timer, and the intermittent emission of control ultrasonic wave carries out the detection of human body.
Described frequency-selecting and filtering module is used to extract the ultrasonic signal corresponding to 38-42KHz, produces corresponding electric impulse signal; Described frequency-selecting and filtering module also is used for the interference noise of described electric impulse signal is carried out filtering.
Described control module is controlled described valve driving module and is washed by water after determining that human body enters in the described operating distance scope; After described control module determines that human body leaves the operating distance scope, control described valve driving module and wash by water, the duration of at every turn washing by water changes as required.
Described bath control system is used the 6V power voltage supply.
Of the present inventionly can carry out accurate human body distance measurement with very low power consumption with respect to the bath control appliance of infrared sensor based on hyperacoustic bath control system, judge the state of human body according to the result who measures, carry out corresponding flush action, compare than like product, employed components and parts still less, operating characteristics is more reliable, and power consumption is lower, and has significantly reduced the mistake flush action and leaked the probability of happening of flush action; Use intermittent duty in addition, further reduced power consumption.
Description of drawings
Fig. 1 is the block diagram of control system of washing by water according to an embodiment of the invention;
Fig. 2 is the circuit theory diagrams of control system of washing by water according to an embodiment of the invention;
Fig. 3 is the bath control system basic operation procedure figure according to the embodiment of the invention.
The specific embodiment
A kind ofly be described in detail provided by the invention below in conjunction with the drawings and specific embodiments based on hyperacoustic bath control system.
Fig. 1 illustrates according to an embodiment of the invention based on hyperacoustic bath control system.As shown in Figure 1, this bath control system comprises control module, supersonic generator, ultrasonic receiver, frequency-selecting and filtering module and valve driving module.
Startup and operating frequency that control module is used to transmit control signal and controls supersonic generator; Response is from the electric impulse signal of the expression human body range information of frequency-selecting and filtering module reception, and according to end user's time of staying differentiation user mode, the unlatching of by-pass valve control driver module and continuous firing were closed after a period of time.
Supersonic generator is connected with control module, is used to receive the control signal that control module sends, and sends the ultrasonic wave of CF according to the operating frequency of control module setting.Wherein, can continuity or intermittent emission ultrasonic wave, intermittent hyperacoustic intermittent time of emission can be set based on the frequency of utilization of equipment and the cleannes of natural environment; In the present embodiment, ultrasonic frequency is set at 40KHz, is appreciated that ultrasonic frequency also can select the value in other scope.
Ultrasonic receiver is used to receive the ultrasonic signal that returns from human body, forms the electric impulse signal of expression ultrasonic signal.
Frequency-selecting and filtering module links to each other with ultrasonic receiver, is used to receive the electric impulse signal from the expression ultrasonic signal of ultrasonic receiver, extracts the electric impulse signal corresponding to the ultrasonic signal of particular frequency range.Corresponding to the ultrasonic signal of 40KHz, extract electric impulse signal here, corresponding to the ultrasonic signal of 38-42KHz.In addition, because the signal that produces with device itself in the signals transmission disturbs, then frequency-selecting and filtering module is carried out filtering to the interference noise in the electric impulse signal in addition.Certainly, not being in the very strict environment for demand on signal quality, be the consideration that reduces cost, frequency-selecting and filtering module can not comprise the part of filter action.
The valve driving module links to each other with control module, is used to receive the control signal that control module sends, and according to this control signal, opens the bath or the valve-off that continue for some time and stops bath.
Might not carry out in real time the ultrasound examination of using human body,, the detection of human body be carried out 1 time every 1 second get final product through test.Certainly, according to different frequencies of utilization, can increase or reduce detection time.When system works detected, the control module working time was set at 10 milliseconds, and operating current is 10mA.When not detecting, control module sends instruction makes whole system enter holding state, and this moment, operating current was 0.01mA.
Like this, calculate with 1 second power consumption, all-time power consumption is 1 second * 10mA=10mA* second; The intermittently used power consumption is 0.01 second * 10mA+0.99 * second 0.01mA=0.1099mA* second, the ratio of full-time and discontinuous operation: 10/0.1099=90.99, and the power consumption with intermittent mode promptly of the present invention is 1.099% of a full-time mode.
Control module is set operating distance, and in this operating distance scope, effective judgement is made in the existence of ultrasonic sensing human body, outside this working range, not thinks to use this bath control system.Control module is determined the variable in distance of human body according to distance and operating distance scope that ultrasonic pulse returns, judges human body and walks close to or leave.For example, when walking close to, distance value can be from large to small; When leaving, distance value can change from small to big.The control module time point of can selecting neatly to wash by water comes the consumption of conserve water, for example selects to leave in the process bath or leaves bath in the operating distance scope fully.
Fig. 2 illustrates the circuit theory diagrams based on hyperacoustic bath control system according to the embodiment of the invention.As shown in Figure 2, circuit diagram is arranged can be divided into upper, middle and lower three parts, uppermost part is supersonic generator and acceptor circuit, the centre is to amplify and frequency selection circuit (corresponding to the frequency-selecting and filtering module among Fig. 1), is controller U1 (corresponding to the control module of Fig. 1), valve controling circuit (corresponding to the valve driving module of Fig. 1) and condition indication circuit below.
Fig. 3 illustrates the bath control system basic operation procedure figure according to the embodiment of the invention.Controller U1 sends pulse signal OUT, promotes the supersonic generator circuit and sends ultrasonic wave.Ultrasonic wave returns after running into human body, and the ultrasonic receiver circuit receives the ultrasonic signal that returns, and produces corresponding some pulse signal SIGN.Electric impulse signal SIGN is transferred to amplification and the frequency selection circuit of being made up of operational amplifier A R2-AR4 and peripheral circuit, carries out the selection of respective frequencies, can be 40KHz in this embodiment.Controller U1 sends the time that receives with SIGN by signal OUT, calculates the distance of human body.After definite human body enters working range, promote the valve controling circuit unlatching and wash by water.Receive after signal judges human body and leave working range, wash by water, after continuing for some time, promote valve controling circuit and stop bath.
Further, as shown in Figures 2 and 3, high-frequency step-up transformer T2, promotion triode Q14, Q13 and supersonic generator T1 form supersonic generator circuit and ultrasonic receiver circuit.In 1 second of every interval, " PB4 " pin of controller U1 is exported 16 group pulse signals, indicates with OUT, this signal frequency is 40kHz, sends to the source electrode front end of Q14, after Q14 amplifies, promote the limit, source of T2, and then export 16 groups of high-frequency high-voltage signals on the inferior limit of T2; T1 produces vibration under the effect of this high-frequency high-voltage signal, sends ultrasonic wave.
Ultrasonic signal turns back to T1 after running into human body, vibrates in T1, produces the electric impulse signal SIGN corresponding to ultrasonic signal.The pulse signal that this electric impulse signal SIGN does not wait for the group number, because the reflected intensity difference, so the group number does not wait.This electric impulse signal SIGN is coupled through C20, gives triode Q12 and carries out 30 times amplification, delivers to operational amplifier A R1 through C21 then and continues to amplify.
Electric impulse signal after being exaggerated is delivered to operational amplifier A R2 to AR4 through resistor R 37 and is carried out frequency-selecting, as shown in the figure, comprises between the operational amplifier A R2 to AR4 that filter capacitor C5, C6, C7 are used for the not signal of desired frequency scope of filtering.In the present embodiment, because the setting signal frequency is 40kHz, extract the electric impulse signal that reflects so choose the frequency band of 38KHz to 42KHz.Electric impulse signal after the frequency-selecting is delivered to operational amplifier A R3 by C5 and is filtered, and the electric impulse signal behind the filtering interfering clutter indicates with REC through " PB5 " pin that R5 and Q1 enter controller U1.
After controller U1 receives filtered electric impulse signal, according to from sending signal OUT calculates human body to the time that receives echo REC distance.Wherein: distance=(speed of time * sound)/2.Controller U1 is compared by distance that is calculated and operating distance and judges whether human body enters the needed scope of bath.Controller U1 also is used to realize discontinuous operation, arranges a timer among the controller U1, and its timing is set at 1 second, when per 1 second then, then launches the detection that ultrasonic wave has or not human body.Be appreciated that intermittent duty is in order to reduce power consumption, so that system can be applied to the powered battery occasion.
After controller U1 determines that according to the electric impulse signal of receiving corresponding to ultrasonic signal human body enters in the working range, " PA0 " human hair combing waste of controller U1 is penetrated one 30 milliseconds high level, indicate with PB, the valve opening circuit that promotion is made up of Q2, Q3, Q5 is opened water valve and is washed by water." PA2 " human hair combing waste of controller U1 is penetrated one 30 milliseconds high level after 1 second, indicates with PA, and promotion is closed water valve and stopped bath by the valve closing circuit that Q4, Q5, Q9 form.Certainly, the bath duration can be adjusted flexibly.Leave working range when controller U1 calculates human body according to the electric impulse signal of receiving, controller U1 " PA0 " human hair combing waste is penetrated one 30 milliseconds high level, and the valve opening circuit that promotion is made up of Q2, Q3, Q5 is opened water valve and washed by water.After 3 seconds, " PA2 " human hair combing waste of controller U1 is penetrated one 30 milliseconds high level promotion by the valve closing circuit that Q4, Q5, Q9 form, and closes water valve and stops bath.This is that the bath mode of general urinal is provided with, and the end user enters the bath that working range is carried out the short time, washes by water relatively for a long time after leaving.Only can certainly be set at and after the end user leaves, wash by water, to save water resource.
Controller U1 sends the indicating circuit that red, green index signal RLED and GLED give lower right side among the figure by pin PA3 and PB3, is used to indicate the user mode of flushing system.
In addition, the ultrasonic continuous pulse signal that in living environment, does not have 40KHz, only might have the very little spiking of pulsewidth, sort signal is easy to filtering by the filtering processing in system, disturbs so other signal in the living environment can not produce this control system.
In addition, because ultrasonic wave is for the reflectivity basically identical of the material of shades of colour and material, so can not occur misoperation because of differentiating for the different distance of different materials.Usually, hyperacoustic to transmit and receive needed operating voltage be 12V, and native system can use 4 to save the 1.5V powered battery because device reduces and power consumption descends, and promptly the voltage of 6V is powered.
It should be noted that at last, above embodiment is only in order to describe technical scheme of the present invention rather than the present technique method is limited, the present invention can extend to other modification, variation, application and embodiment on using, and therefore thinks that all such modifications, variation, application, embodiment are in spirit of the present invention and teachings.
Claims (10)
1, a kind of bath control system is characterized in that, comprising: control module, supersonic generator, ultrasonic receiver, frequency-selecting and filtering module and valve driving module;
Wherein, startup and operating frequency that described control module is used to transmit control signal and controls supersonic generator, and response is from the signal of the expression human body range information of described frequency-selecting and filtering module reception, the opening and closing of by-pass valve control driver module;
Described supersonic generator is connected with control module, is used for sending the ultrasonic wave of CF according to the control signal that receives from described control module;
Described ultrasonic receiver is used to receive the ultrasonic signal that returns from human body, produces the electric impulse signal of the described ultrasonic signal of expression;
Described frequency-selecting and filtering module links to each other with described ultrasonic receiver, is used to receive the described electric impulse signal from described ultrasonic receiver, extracts the signal of telecommunication corresponding to the ultrasonic signal of particular frequency range;
Described valve driving module with shown in control module link to each other, be used for opening or close flush valve according to the control signal that is received from described control module.
2, bath control system according to claim 1 is characterized in that, the described control module control system intermittent work that transmits control signal, and described control module is controlled described supersonic generator intermittence and is carried out human detection.
3, bath control system according to claim 2 is characterized in that, described intermittent work or the intermittent blanking time of detecting are 1 second, 2 seconds or greater than 2 seconds.
4, bath control system according to claim 3, it is characterized in that, the operating frequency intermittence that described supersonic generator is set according to described control module is sent the ultrasonic wave of 40KHz, and wherein, set based on the frequency of utilization of equipment and the cleannes of natural environment blanking time.
5, bath control system according to claim 1 is characterized in that, described control module is set operating distance, effectively judges in this operating distance scope.
6, bath control system according to claim 5 is characterized in that, described control module is determined the variable in distance of human body according to the distance and the described operating distance of the ultrasonic pulse correspondence of returning, and judges human body and walks close to or leave; Described control module selects human body to leave in the process control bath or human body leaves described operating distance scope inner control bath fully.
7, bath control system according to claim 6 is characterized in that, basis was from sending described control signal calculates human body to the time that receives echo distance after described control module received filtered electric impulse signal; Described control module is furnished with timer, and the intermittent emission of control ultrasonic wave carries out the detection of human body.
8, bath control system according to claim 4 is characterized in that, described frequency-selecting and filtering module is used to extract the ultrasonic signal corresponding to 38-42KHz, produces corresponding electric impulse signal; Described frequency-selecting and filtering module also is used for the interference noise of described electric impulse signal is carried out filtering.
9, bath control system according to claim 7 is characterized in that, described control module is controlled described valve driving module and washed by water after determining that human body enters in the described operating distance scope; After described control module determines that human body leaves the operating distance scope, control described valve driving module and wash by water, the duration of at every turn washing by water changes as required.
10, bath control system according to claim 1 is characterized in that, described bath control system is used the 6V power voltage supply.
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| CN2009101623920A CN101619589B (en) | 2009-08-13 | 2009-08-13 | Water flushing control system |
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| CN2009101623920A CN101619589B (en) | 2009-08-13 | 2009-08-13 | Water flushing control system |
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| CN101619589A true CN101619589A (en) | 2010-01-06 |
| CN101619589B CN101619589B (en) | 2012-05-30 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103519743A (en) * | 2012-07-05 | 2014-01-22 | 上海科勒电子科技有限公司 | Closestool device for closestool |
| CN104267648A (en) * | 2014-09-27 | 2015-01-07 | 咸阳西北医疗器械(集团)有限公司 | Ultrasonic detection water obtaining control device |
| CN104746616A (en) * | 2013-12-27 | 2015-07-01 | 上海科勒电子科技有限公司 | Automatic sensing device, automatic sensing flushing system and control method thereof |
| CN108071153A (en) * | 2018-01-16 | 2018-05-25 | 厦门致杰智能科技有限公司 | A kind of intellectual water closet and auto-flushing control method |
| CN109415892A (en) * | 2016-07-07 | 2019-03-01 | As知识产权控股有限公司 | Automatically will be discharged into the runoff investigation of closestool urinal at the consistent system of urinal content, the closestool including this system and associated method |
| CN112177116A (en) * | 2020-09-09 | 2021-01-05 | 杭州洁驰数控科技有限公司 | Ultrasonic intelligent induction flushing system based on intelligent public toilet and induction method thereof |
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| CN104947765B (en) * | 2015-06-24 | 2016-09-28 | 西安建筑科技大学 | A kind of contactless closet flushing apparatus of cistern free |
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2009
- 2009-08-13 CN CN2009101623920A patent/CN101619589B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103519743A (en) * | 2012-07-05 | 2014-01-22 | 上海科勒电子科技有限公司 | Closestool device for closestool |
| US9338826B2 (en) | 2012-07-05 | 2016-05-10 | Shanghai Kohler Electronics, Ltd | Systems and methods for automatically configuring an operating schedule for an electronic toilet device |
| US9492042B2 (en) | 2012-07-05 | 2016-11-15 | Shanghai Kohler Electronics, Ltd. | Methods for automatically configuring an operating schedule for an electronic toilet device |
| CN104746616A (en) * | 2013-12-27 | 2015-07-01 | 上海科勒电子科技有限公司 | Automatic sensing device, automatic sensing flushing system and control method thereof |
| CN104267648A (en) * | 2014-09-27 | 2015-01-07 | 咸阳西北医疗器械(集团)有限公司 | Ultrasonic detection water obtaining control device |
| CN109415892A (en) * | 2016-07-07 | 2019-03-01 | As知识产权控股有限公司 | Automatically will be discharged into the runoff investigation of closestool urinal at the consistent system of urinal content, the closestool including this system and associated method |
| US11091903B2 (en) | 2016-07-07 | 2021-08-17 | As America, Inc. | Systems to automate adjustment of water volume release to a toilet bowl to correspond to bowl contents, toilets including the system and related methods |
| CN108071153A (en) * | 2018-01-16 | 2018-05-25 | 厦门致杰智能科技有限公司 | A kind of intellectual water closet and auto-flushing control method |
| CN112177116A (en) * | 2020-09-09 | 2021-01-05 | 杭州洁驰数控科技有限公司 | Ultrasonic intelligent induction flushing system based on intelligent public toilet and induction method thereof |
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| CN101619589B (en) | 2012-05-30 |
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