CN206038099U - Probe -type water level observation circuit and detection of water level equipment - Google Patents
Probe -type water level observation circuit and detection of water level equipment Download PDFInfo
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- CN206038099U CN206038099U CN201620761521.3U CN201620761521U CN206038099U CN 206038099 U CN206038099 U CN 206038099U CN 201620761521 U CN201620761521 U CN 201620761521U CN 206038099 U CN206038099 U CN 206038099U
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Abstract
The utility model discloses a probe -type water level observation circuit and detection of water level equipment, wherein this probe -type water level observation circuit includes control circuit, a switch circuit, the 2nd switch circuit, first probe, second probe and power, control circuit receives and handles the level signal of second probe to the output pulse signal is controlled a switch circuit and the 2nd switch circuit respectively and is cut logically in turn, a switch circuit according to pulse signal, cuts off or cuts the power that leads to input to first probe, the 2nd switch circuit according to pulse signal, cuts off or cuts to lead to and import to the power of second probe, first probe and second probe, arrange the container of the water level that awaits measuring in, detect the monitoring location whether water level reachd the settlement. The utility model discloses technical scheme can reduce the probe at water level prison time measuring's electrolytic effect, and extension probe life prevents water pollution.
Description
Technical field
The utility model is related to electronic circuit technology field, and more particularly to a kind of probe-type water level monitoring circuit and water level are examined
Measurement equipment.
Background technology
Water level monitoring system is applied to many fields in life, and the water level monitoring of probe-type is a kind of conventional means；
Probe-type water level monitoring generally arranges probe need to monitor in the container of water level, by the resistance change between monitoring probe come
The detection water outlet whether monitoring side residing for submergence probe, so that judge whether water level reaches monitored position；But traditional spy
A usual direct direct current on the probe of pin type water level monitoring system, this can cause Electrolysis, be contaminated water quality, while
The service life of probe can also greatly shortened.
Utility model content
Main purpose of the present utility model is to provide a kind of probe-type water level monitoring circuit, it is desirable to provide one kind can be effective
Reduce water pollution, extend the probe-type water level monitoring circuit and water level detecting equipment of probe use time.
For achieving the above object, the utility model proposes a kind of probe-type water level monitoring circuit, including control circuit,
One on-off circuit, second switch circuit, the first probe, the second probe and power supply；The first output end of the control circuit with it is described
First switch circuit controlled end connects, and the first switch circuit output end is connected with first probe；The control circuit
Second output end is connected with the second switch circuit controlled end, and the second switch circuit output end is connected with second probe
Connect；Second probe is connected with the control circuit input；The first switch input is connected with the power supply, described
Second switch input is connected with the power supply；
The control circuit, receives and processes the level signal of second probe, and output pulse signal, control respectively
The first switch circuit and second switch circuit alternating cut through；
The first switch circuit, according to the pulse signal, cuts off or cuts through the power supply being input into first probe；
The second switch circuit, according to the pulse signal, cuts off or cuts through the power supply being input into second probe；
First probe and second probe, are placed in the container of water level to be measured, and whether sensed water level reaches setting
Monitoring position.
Preferably, also including comparator circuit；The comparator circuit input is connected with second probe, the ratio
It is connected with the control circuit input compared with device circuit output end.
Preferably, the comparator circuit includes first resistor, diode and comparator；The comparator first input end
For the comparator circuit input, the second input of the comparator is connected with power supply；The comparator power end and power supply
Connection, the comparator earth terminal ground connection；The comparator output terminal is connected with the diode cathode, the diode cathode
It is connected with the first resistor first end, the second end of the first resistor is connected with power supply；The diode cathode is the ratio
Compared with the output end of device circuit.
Preferably, the first switch circuit includes second resistance, 3rd resistor, the 4th resistance and first switch pipe；Institute
State the output end that second resistance first end is the first switch circuit, the second end of the second resistance and the first switch pipe
Input connects；The 3rd resistor first end is connected with the power supply, the second end of the 3rd resistor and the first switch
Pipe input connects, the first switch pipe output head grounding；The first switch pipe controlled end and the 4th resistance first
End connection, second end of the 4th resistance are the first switch circuit controlled end.
Preferably, the second switch circuit includes the 5th resistance, the 6th resistance and second switch pipe；5th resistance
First end is connected with the power supply, and second end of the 5th resistance is connected with the second switch pipe input；The second switch
Pipe output head grounding, the second switch pipe controlled end are connected with the 6th resistance first end；6th resistance, second end
For the second switch circuit input end, the second switch pipe input is the second switch circuit output end.
Preferably, first probe and second probe are realized using stainless steel material.
Preferably, the control circuit is realized using single-chip microcomputer.
The utility model also proposes a kind of water level detecting equipment, and the water level detecting equipment includes probe-type as above
Water level monitoring circuit, including control circuit, first switch circuit, second switch circuit, the first probe, the second probe and power supply；
The first output end of the control circuit is connected with the first switch circuit controlled end, the first switch circuit output end and institute
State the connection of the first probe；The second output end of the control circuit is connected with the second switch circuit controlled end, and described second opens
Close circuit output end to be connected with second probe；Second probe is connected with the control circuit input；Described first
Switch input terminal is connected with the power supply, and the second switch input is connected with the power supply；The control circuit, receives
And the level signal of second probe, and output pulse signal is processed, the first switch circuit and described is controlled respectively
Two on-off circuits alternating cuts through；The first switch circuit, according to the pulse signal, cuts off or cuts through input to described first
The power supply of probe；The second switch circuit, according to the pulse signal, cuts off or cuts through the electricity being input into second probe
Source；First probe and second probe, are placed in the container of water level to be measured, and whether sensed water level reaches the monitoring of setting
Position.
Technical solutions of the utility model are by being visited using control circuit, first switch circuit, second switch circuit, first
Pin, the second probe and power supply, realize a kind of probe-type water level monitoring circuit.First is controlled respectively by the control circuit to open
Powered-down road and second switch circuit alternating cut through；By first switch circuitry cuts or cut through be input into first probe electricity
Source；By second switch circuitry cuts or cut through be input into second probe power supply；Again by being placed in level vessels to be measured
The first probe and the second probe, monitor whether water level reaches the monitoring water level of container, finally receive second by control circuit and visit
The level signal of pin, to judge water level conditions.The utility model replaces level by high frequency, the short time, step to complete right
The monitoring of water level, is effectively reduced the generation of Electrolysis, prevents water pollution, while the probe life-span greatly prolongs.
Description of the drawings
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, other accompanying drawings can be obtained with the structure according to these accompanying drawings.
Functional block diagrams of the Fig. 1 for one embodiment of the utility model probe-type water level monitoring circuit；
Structural representations of the Fig. 2 for one embodiment of the utility model probe-type water level monitoring circuit.
Drawing reference numeral explanation：
The realization of the utility model purpose, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the utility model protection.
It is to be appreciated that institute's directional instruction (such as up, down, left, right, before and after ...) in the utility model embodiment
It is only used for explaining in the relative position relation under a certain particular pose (as shown in drawings) between each part, motion conditions etc., such as
When really the particular pose changes, then directionality indicates also correspondingly to change therewith.
In addition, the description for being related to " first ", " second " etc. in the utility model is only used for describing purpose, and it is not understood that
For indicating or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme
Will be understood that the combination of this technical scheme is not present when appearance is conflicting or cannot realize, also do not require in the utility model
Protection domain within.
The utility model proposes a kind of probe-type water level monitoring circuit.
With reference to Fig. 1, in the utility model embodiment, the probe-type water level monitoring circuit include control circuit 100,
First switch circuit 200, second switch circuit 300, the first probe 400, the second probe 500 and power supply 700；The control circuit
100 first output ends are connected with 200 controlled end of first switch circuit, 200 output end of first switch circuit with it is described
First probe 400 connects；100 second output end of the control circuit is connected with 300 controlled end of second switch circuit, described
300 output end of second switch circuit is connected with second probe 500；Second probe 500 is defeated with the control circuit 100
Enter end connection；The first switch input is connected with the power supply 700, the second switch input and the power supply 700
Connection.
The control circuit 100, receives and processes the level signal of second probe 500, and output pulse signal, point
Do not control the first switch circuit 200 and the second switch circuit 300 alternately cuts through；The first switch circuit 200,
According to the pulse signal, the power supply 700 being input into first probe 400 is cut off or cuts through；The second switch circuit
300, according to the pulse signal, cut off or cut through the power supply 700 being input into second probe 500；First probe 400
And second probe 500, it is placed in the container of water level to be measured, whether sensed water level reaches the monitoring position of setting.
It should be noted that in the present embodiment, the probe-type water level monitoring circuit is by two kinds of working conditions：State one
Turn on for first switch circuit 200, second switch circuit 300 disconnects；State two is turned on for first switch circuit 200, and second opens
Powered-down road 300 disconnects.During work, probe-type water level monitoring circuit is detected using pulse operation, only at interval of one end time
Detection once, only detects the default a bit of time every time, and during detection, the probe-type water level monitoring circuit is first in work shape
State one monitors water level, then switches to the monitoring water level of working condition two, and the detection of working condition two is switched back into after terminating forbids water level
The state of monitoring.Change and shorten detection time by probe level and can be prevented effectively from Electrolysis, so as to avoid water quality
Pollution, while be also prevented from probe get rusty.
Technical solutions of the utility model are by using control circuit 100, first switch circuit 200, second switch circuit
300th, the first probe 400, the second probe 500 and power supply 700, realize a kind of probe-type water level monitoring circuit.By controlling electricity
Road 100 controls first switch circuit 200 respectively and the alternating of second switch circuit 300 cuts through；Cut off by first switch circuit 200
Or cut through the power supply 700 being input into first probe 400；Input is cut off or is cut through by second switch circuit 300 to described
The power supply 700 of the second probe 500；Again by the first probe 400 and the second probe 500 being placed in level vessels to be measured, water is monitored
Whether position reaches the monitoring water level of container, is finally received the level signal of the second probe 500 by control circuit 100, to judge water
Position situation.The utility model replaces level by high frequency, the short time, step to complete the monitoring to water level, effectively reduces
The generation of Electrolysis, prevents water pollution, while the probe life-span greatly prolongs.
Specifically, also including comparator circuit 600；600 input of the comparator circuit is connected with second probe 500
Connect, 600 output end of the comparator circuit is connected with 100 input of the control circuit；
Specifically, the comparator circuit 600 includes first resistor R1, diode D and comparator U；The comparator U
One input is 600 input of the comparator circuit, and second inputs of comparator U are connected with power supply；The comparator U
Power end is connected with power supply, the comparator U earth terminals ground connection；The comparator U output ends are connected with the diode D negative poles
Connect, the diode D positive poles are connected with the first resistor R1 first end, the second end of first resistor R1 is connected with power supply；
The diode D just extremely output ends of the comparator circuit 600.
It should be noted that in the present embodiment, the voltage connected by the second inputs of comparator U is 5V, comparator U power supplys
The connected voltage in end is 12V, and the voltage connected by the second end of first resistor R1 is 12V；When comparator U first input end voltages
When value is more than the second input terminal voltage, comparator U output ends output high level；When comparator U first input ends voltage is less than the
During two inputs, comparator U output ends output low level.
Specifically, the first switch circuit 200 includes second resistance R2,3rd resistor R3, the 4th resistance R4 and first
Switching tube Q1；The second resistance R2 first end is the output end of the first switch circuit 200, second resistance R2 second
End is connected with the first switch pipe Q1 inputs；The 3rd resistor R3 first end is connected with power supply 700, the 3rd resistor
The second ends of R3 are connected with the first switch pipe Q1 inputs, the first switch pipe Q1 output head groundings；The first switch
Pipe Q1 controlled ends are connected with the 4th resistance R4 first ends, and second ends of the 4th resistance R4 are the first switch circuit
200 controlled ends.
Specifically, the second switch circuit 300 includes the 5th resistance R5, the 6th resistance R6 and second switch pipe Q2；Institute
State the 5th resistance R5 first ends to be connected with power supply 700, second ends of the 5th resistance R5 and the second switch pipe Q2 inputs
Connection；The second switch pipe Q2 output head groundings, the second switch pipe Q2 controlled ends and the 6th resistance R6 first ends
Connection；6th resistance R6, second ends are 300 input of second switch circuit, and the second switch pipe Q2 inputs are
600 output end of second switch circuit.
It should be noted that in the utility model embodiment, 3rd resistor R3 first end and the 5th resistance R5 first ends
What is connected is all 12V voltages；First switch pipe Q1 and second switch pipe Q2 are realized using NPN type triode.
Further, when 100 first output end of control circuit exports high level, first switch pipe Q1 conductings, first opens
200 output end of powered-down road is electronegative potential, and the first probe 400 is in high potential state；When 100 first output end of control circuit is exported
During high level, first switch pipe Q1 cut-offs, first switch circuit output end are high potential, and the first probe 400 is in electronegative potential shape
State.When 100 second output end of control circuit exports high level, second switch pipe Q2 conductings, 300 output end of second switch circuit
For electronegative potential, the second probe 500 is in high potential state；When 100 second output end of control circuit exports high level, second opens
Pipe Q2 cut-offs are closed, 300 output end of second switch circuit is high potential, and the second probe 500 is in low-potential state.
Further, when forbidding water level monitoring state at the probe-type observation circuit, 100 first output end of control circuit and
Second output end all exports low level, and first switch pipe Q1 and second switch pipe Q2 are all in cut-off state；Now, the first probe
400 and second probe 500 all in high level state, two probes are in equipotential state, can be prevented effectively from generation electrolysis.
At the probe-type observation circuit in working order in the case of one, the high electricity of 100 first output end of control circuit output
It is flat, the second output end output low level.First switch pipe Q1 is turned on, second switch pipe Q2 cut-offs.Now, at the second probe 500
In high level, when water level does not have immersed water level probe, the first probe 400 passes through second resistance R2 and second switch pipe Q2 is drop-down
To electronegative potential, comparator U output ends output low level.When water level immersed water level probe, the voltage on the first probe 400 is equal to
Water resistance and the result after second resistance R2 partial pressure between two control pins.After the voltage is compared with+5V, comparator U output ends are defeated
Go out high level.At the probe-type observation circuit in working order in the case of two when, control circuit first end output low level, the
Two output ends export high level, the cut-off of first switch pipe, the conducting of second switch pipe.Now, the second probe is in electronegative potential.Work as water
When position does not have submergence probe, the first probe is pulled upward to high potential, comparator U output ends output high level by second resistance R2.
When water level submergence probe, the voltage on the first probe 400 is equal to the result after second resistance R2 and water resistance partial pressure.The electricity
After pressure is compared with+5V, comparator U output ends output low level is made.
After the probe-type observation circuit is started shooting, 100 first output port of control circuit and the second output port are all defeated
Go out low level, circuit is in forbids water level monitoring state；After circuit is started working, 100 first output port of control circuit is defeated
Go out high level, the second output port output low level, circuit is in the first working condition, and now 100 input of control circuit is
Represent during high level that water level reaches monitoring position；When 100 input of control circuit is low level, this represents that water level does not reach monitoring
Position.After circuit monitors a period of time in the first operative state, the probe-type water level monitoring circuit is converted to the second work
State, 100 first output port of control circuit output low level, the second output port export high level, now control circuit 100
Input represents when being low level that water level reaches monitoring position, and input represents when being high level that water level does not reach monitoring position.
In a second operative state after the monitoring section time, working condition is switched back into again forbids water level monitoring state to circuit, so circulates.Institute
When stating probe-type water level monitoring circuit and working, in water level monitoring state is forbidden in the circuit most of the time, only with it is little when
Between complete water level monitoring.
Specifically, first probe 400 and second probe 500 are realized using stainless steel material.
It should be noted that practical stainless steel material effectively can be prevented making the first probe 400 and the second probe 500
Only probe is corroded, and prevents from getting rusty.
In the present embodiment, the control circuit 100 is realized using single-chip microcomputer.
Technical solutions of the utility model are by using control circuit 100, first switch circuit 200, second switch circuit
300th, the first probe 400, the second probe 500 and power supply 700, realize a kind of probe-type water level monitoring circuit.The utility model
Water level directly sense by being filled with stainless steel probe, can be good at preventing probe to be corroded in water, it is alternately electric using high frequency
It is flat to complete the detection to current potential in a short period of time, it is to avoid Electrolysis occur, water pollution is prevented, while can also extend
The service life of probe.
The utility model also proposes a kind of water level detecting equipment, and the water level detecting equipment includes probe-type water as above
Position observation circuit, concrete structure reference above-described embodiment of the probe-type water level monitoring circuit, as this water level detecting equipment is adopted
With whole technical schemes of above-mentioned all embodiments, thus at least the technical scheme with above-described embodiment brought it is all
Beneficial effect, this is no longer going to repeat them.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
It is every under inventive concept of the present utility model, the equivalent structure made using the utility model specification and accompanying drawing content is become
Change, or directly/be used in indirectly other related technical fields and be included in scope of patent protection of the present utility model.
Claims (8)
1. a kind of probe-type water level monitoring circuit, it is characterised in that including control circuit, first switch circuit, second switch electricity
Road, the first probe, the second probe and power supply；The first output end of the control circuit is connected with the first switch circuit controlled end
Connect, the first switch circuit output end is connected with first probe；The second output end of the control circuit and described second
On-off circuit controlled end connects, and the second switch circuit output end is connected with second probe；Second probe and institute
State the connection of control circuit input；The first switch input is connected with the power supply, the second switch input and institute
State power supply connection；
The control circuit, receives and processes the level signal of second probe, and output pulse signal, controls respectively described
First switch circuit and second switch circuit alternating cut through；
The first switch circuit, according to the pulse signal, cuts off or cuts through the power supply being input into first probe；
The second switch circuit, according to the pulse signal, cuts off or cuts through the power supply being input into second probe；
First probe and second probe, are placed in the container of water level to be measured, and whether sensed water level reaches the prison of setting
Location is put.
2. probe-type water level monitoring circuit as claimed in claim 1, it is characterised in that also including comparator circuit；The ratio
It is connected with second probe compared with device circuit input end, the comparator circuit output end is connected with the control circuit input
Connect.
3. probe-type water level monitoring circuit as claimed in claim 2, it is characterised in that the comparator circuit includes that first is electric
Resistance, diode and comparator；The comparator first input end is the comparator circuit input, and the comparator second is defeated
Enter end to be connected with power supply；The comparator power end is connected with power supply, the comparator earth terminal ground connection；The comparator output
End is connected with the diode cathode, and the diode cathode is connected with the first resistor first end, the first resistor the
Two ends are connected with power supply；The diode cathode is the output end of the comparator circuit.
4. probe-type water level monitoring circuit as claimed in claim 3, it is characterised in that the first switch circuit includes
Two resistance, 3rd resistor, the 4th resistance and first switch pipe；The second resistance first end is the defeated of the first switch circuit
Go out end, the second end of the second resistance is connected with the first switch pipe input；The 3rd resistor first end and the electricity
Source connects, and the second end of the 3rd resistor is connected with the first switch pipe input, the first switch pipe output head grounding；
The first switch pipe controlled end is connected with the 4th resistance first end, and second end of the 4th resistance is the first switch
Circuit controlled end.
5. probe-type water level monitoring circuit as claimed in claim 4, it is characterised in that the second switch circuit includes the 5th
Resistance, the 6th resistance and second switch pipe；The 5th resistance first end is connected with the power supply, second end of the 5th resistance with
The second switch pipe input connection；The second switch pipe output head grounding, the second switch pipe controlled end with it is described
6th resistance first end connects；6th resistance, second end be the second switch circuit input end, the second switch pipe
Input is the second switch circuit output end.
6. probe-type water level monitoring circuit as claimed in claim 5, it is characterised in that first probe and described second is visited
Pin is realized using stainless steel material.
7. probe-type water level monitoring circuit as claimed in claim 6, it is characterised in that the control circuit is using single-chip microcomputer
Realize.
8. a kind of water level detecting equipment, it is characterised in that the water level detecting equipment is included such as claim 1-7 any one institute
The probe-type water level monitoring circuit stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620761521.3U CN206038099U (en) | 2016-07-19 | 2016-07-19 | Probe -type water level observation circuit and detection of water level equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620761521.3U CN206038099U (en) | 2016-07-19 | 2016-07-19 | Probe -type water level observation circuit and detection of water level equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038099U true CN206038099U (en) | 2017-03-22 |
Family
ID=58311186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620761521.3U Active CN206038099U (en) | 2016-07-19 | 2016-07-19 | Probe -type water level observation circuit and detection of water level equipment |
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| CN (1) | CN206038099U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107468216A (en) * | 2017-09-26 | 2017-12-15 | 江苏精微特电子股份有限公司 | Moisture of skin measuring circuit and moisture of skin measuring instrument |
| CN108427339A (en) * | 2018-02-07 | 2018-08-21 | 厦门芯阳科技股份有限公司 | A kind of stage body flatiron boiler water level state detection circuit and method |
| CN108444099A (en) * | 2018-03-19 | 2018-08-24 | 广东海信家电有限公司 | A kind of electric heater |
| CN109254326A (en) * | 2017-07-12 | 2019-01-22 | 美的智慧家居科技有限公司 | Water sensor and water sensor probe rust-proofing method |
| CN110160597A (en) * | 2019-06-11 | 2019-08-23 | 宁波市机电工业研究设计院有限公司 | A kind of water level detection circuit based on positive and negative symmetrical square wave direct current |
| CN110346014A (en) * | 2019-07-28 | 2019-10-18 | 北京交通大学 | A kind of city tunnel ponding warning device |
| CN113776604A (en) * | 2021-11-15 | 2021-12-10 | 临沂泽宇环保科技有限公司 | Marine environment monitoring device based on Internet of things |
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2016
- 2016-07-19 CN CN201620761521.3U patent/CN206038099U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254326A (en) * | 2017-07-12 | 2019-01-22 | 美的智慧家居科技有限公司 | Water sensor and water sensor probe rust-proofing method |
| CN107468216A (en) * | 2017-09-26 | 2017-12-15 | 江苏精微特电子股份有限公司 | Moisture of skin measuring circuit and moisture of skin measuring instrument |
| CN108427339A (en) * | 2018-02-07 | 2018-08-21 | 厦门芯阳科技股份有限公司 | A kind of stage body flatiron boiler water level state detection circuit and method |
| CN108444099A (en) * | 2018-03-19 | 2018-08-24 | 广东海信家电有限公司 | A kind of electric heater |
| CN110160597A (en) * | 2019-06-11 | 2019-08-23 | 宁波市机电工业研究设计院有限公司 | A kind of water level detection circuit based on positive and negative symmetrical square wave direct current |
| CN110346014A (en) * | 2019-07-28 | 2019-10-18 | 北京交通大学 | A kind of city tunnel ponding warning device |
| CN113776604A (en) * | 2021-11-15 | 2021-12-10 | 临沂泽宇环保科技有限公司 | Marine environment monitoring device based on Internet of things |
| CN113776604B (en) * | 2021-11-15 | 2022-02-18 | 临沂泽宇环保科技有限公司 | Marine environment monitoring device based on Internet of things |
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