CN201837900U - Intelligent liquid level display controller - Google Patents
Intelligent liquid level display controller Download PDFInfo
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- CN201837900U CN201837900U CN2010205472612U CN201020547261U CN201837900U CN 201837900 U CN201837900 U CN 201837900U CN 2010205472612 U CN2010205472612 U CN 2010205472612U CN 201020547261 U CN201020547261 U CN 201020547261U CN 201837900 U CN201837900 U CN 201837900U
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- liquid level
- circuit
- display controller
- intelligent liquid
- control circuit
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Abstract
The utility model provides an intelligent liquid level display controller which comprises a pressure sensor, a processor, a display circuit and a control circuit, wherein the processor is respectively connected with the pressure sensor, the display circuit and the control circuit. The intelligent liquid level display controller has the following advantages: the intelligent liquid level display controller can realize visualized display, has long service life and is widely suitable for liquid media.
Description
Technical field
The utility model relates to a kind of device of using in solar heating engineering, relate to a kind of intelligent liquid level display controller particularly.
Background technology
At present, Chang Yong fluid level controller is the electrode solution level controller.
In the prior art, the electrode solution level controller detects liquid level by water-level probe, by the Level Detection special chip detected signal is handled again, when fluid to be measured arrives operating point, chip is exported high or low level signal, hydrous water level controller again, thus realize control to liquid level, and the display part mainly is that the mode by ball float shows actual water level.
In realizing process of the present utility model, the inventor finds to exist at least in the prior art following problem:
Because water-level probe is corroded easily, or produces thicker incrustation scale, thereby can cause common liquid to draw controller to lose efficacy.And above-mentioned fluid level controller is confined to use in having the liquid medium of certain conductance, if fluid to be measured is a pure water, does not have electric conductivity, just then this fluid level controller has lost effect.Further, fluid level controller of the prior art shows that by the ball float mode actual water level has not defective intuitively, and inconvenient user observes.
The utility model content
At the above-mentioned defective that prior art exists, the utility model provides a kind of intelligent liquid level display controller, has intuitive display, long service life, and the applicable liquid medium is advantage widely.
The technical solution of the utility model is as follows:
The utility model provides a kind of intelligent liquid level display controller, comprising: pressure transducer, processor, display circuit and control circuit; Wherein, described processor is connected with described pressure transducer, described display circuit and described control circuit respectively.
Preferably, described processor is connected successively by operational amplification circuit, A/D change-over circuit, comparison control circuit.
Preferably, described comparison control circuit adopts chip LM3914.
Preferably, described display circuit comprises a plurality of LED luminotrons, and described a plurality of LED luminotrons are arranged by point-like pattern or bar chart pattern.
The beneficial effects of the utility model are as follows:
The intelligent liquid level display controller that the utility model provides, the situation of change of the pressure of the detected water of pressure transducer is shown as the ratio that actual water level accounts for total water level, therefore, solved the defective that common fluid level controller in the prior art can't be measured the water level of nonconducting pure water.And the intelligent liquid level display controller that the utility model provides shows intuitively that by the LED luminotron actual water level accounts for the ratio of total water level, makes things convenient for the user to observe.
Description of drawings
Fig. 1 is the synoptic diagram of the composition structure of intelligent liquid level display controller of the present utility model.
Fig. 2 is the circuit diagram of intelligent liquid level display controller of the present utility model.
Embodiment
Below in conjunction with accompanying drawing a concrete embodiment of the present utility model is described.
The intelligent liquid level display controller that the utility model provides comprises: pressure transducer, processor, display circuit and control circuit; Wherein, described processor is connected with described pressure transducer, described display circuit and described control circuit respectively.
Described processor is connected successively by operational amplification circuit, A/D change-over circuit, comparison control circuit; Described comparison control circuit adopts chip LM3914.
Described control circuit is controlled the on off state of water supplement apparatus by controlling continuous relay.
Described display circuit is 10 LED luminotrons, and described 10 LED luminotrons are arranged by point-like pattern or bar chart pattern.
The course of work of the intelligent temperature time controller that the utility model embodiment provides is:
(1) installation process: be connected with flexible pipe at water tank bottom, the pressure transducer of the intelligent liquid level display controller that flexible pipe and the utility model are provided is connected.
(2) adjust process: after the installation, after water tank is filled water, make 10 LED luminotrons in the display circuit all light by adjusting WR1.By the above-mentioned adjusting of this step, can guarantee that when the water tank middle water level changes the ratio that accounts for total luminotron by bright luminotron in the LED luminotron can demonstrate the ratio that actual water level in the water tank accounts for total water level intuitively.
(3) signal transduction process: when the water tank middle water level changes, cause the air pressure variations in the flexible pipe pipe that is connected water tank bottom, therefore, the pressure transducer that is connected with flexible pipe changes into voltage signal with the air change pressure signal that receives, and this voltage signal is passed to processor.
Operational amplification circuit in the processor amplifies this voltage signal, the amplitude of being converted to is the standard signal of 0-5V, and be sent in the A/D converter, A/D converter becomes the digital signal amount to analog-signal transitions, is shown by comparison control circuit (as: LM3914) driving LED luminotron.Wherein, can light partly or entirely (in the luminotron bright number by the decision of actual water level situation) in 10 LED luminotrons by the point-like pattern, also can by the bar chart pattern light in 10 LED luminotrons partly or entirely.
Simultaneously, after the digital signal of voltage correspondence, also this digital signal is sent to control circuit in chip detection, the control strategy that control circuit sets in advance according to self is controlled the on off state of water supplement apparatus.For example: if when control circuit is judged actual water level and is lower than the lowest water level value by the digital signal that receives, then open the switch of water supplement apparatus, in water tank, inject water; When actual water level is higher than the peak level value, then close the switch of water supplement apparatus, stop in water tank, to inject water.Therefore, realized the liquid level upper limit, the effect of liquid level downscale protection.Wherein, peak level value and lowest water level value can be set by the keyboard that is connected with control circuit.
Present embodiment is shown as the ratio that actual water level accounts for total water level with the situation of change of the pressure of the detected water of pressure transducer, therefore, solved the defective that common fluid level controller in the prior art can't be measured the water level of nonconducting pure water.
And the intelligent liquid level display controller that the utility model provides shows intuitively that by the LED luminotron actual water level accounts for the ratio of total water level, makes things convenient for the user to observe.
Referring to accompanying drawing 2, the circuit theory diagrams of the intelligent liquid level display controller that the utility model is provided describe.
The DC12V constant voltage dc source inserts by intelligent liquid level display controller power interface CJ2, is used for to each integrated circuit and relay power supply, and voltage stabilizing chip IC 3 (as: 78L05) provide 5V power supply by CJ1 to pressure transducer.
Operational amplifier IC1 (as: LM358), precision resistor WR1, R4, R5, C2, R3, C14 constitute voltage detecting and signal amplification circuit, obtain the voltage signal of tank pressure sensor by CJ1, C2, R3 are that undesired signal absorbs circuit, carry out voltage amplification through IC1, WR1 adjustable voltage signal amplification factor, and the voltage signal after amplifying from the output of 1 pin of IC1.
R7, R8 provide reference voltage for comparison controller IC2 (as: LM3914), voltage is controlled in the demonstration that goes out every section by the IC2 internal calculation, the voltage signal of bringing with 1 pin of IC1 compares again, calculate the quantity that needs to show luminotron, and drive the D1-D10 luminotron, can also expand outside luminotron by interface CJ6.R2 is the current-limiting resistance of luminotron.
Circuit such as Q1, Q2, timing integrated circuit IC4 (as: NE555), relay J 1 constitute control circuit.Pass through CJ7, the wire jumper of CJ8 end, can conveniently obtain the voltage signal that the luminotron that needs control liquid level height drives pin, Q1, Q2 are level shifting circuit, and the Q1 base stage connects the low liquid level that needs control by R19, the Q2 base stage connects the high liquid level that needs control by R17,3 pin output high level drove J1 when 2 pin of IC4 were lower than 1/3Vcc, and 3 pin output low level J1 discharged when 6 pin were higher than 2/3Vcc, thus the control water supplement apparatus.
And, control circuit can divide three parts to control the high, normal, basic liquid level of water tank respectively, six input points are arranged on the CJ8, the high, normal, basic liquid level that is three tunnel controls respectively is provided with end, CJ7 has ten output points, and 1,2 pin (can connect as required or any pin) that can be connected to CJ7 at 1,2 pin of CJ8 can be used as low liquid level protection; 4,9 pin (can take over the meaning pin as required) that 3,4 pin of CJ8 can be connected to CJ7 can be used as the moisturizing liquid level; 9,10 pin that 5,6 pin of CJ8 can be connected to CJ7 can be used as high liquid level protection.
Diode D15 is the work indication of J1.Other two-way controls in like manner.
Claims (4)
1. an intelligent liquid level display controller is characterized in that, comprising: pressure transducer, processor, display circuit and control circuit; Wherein, described processor is connected with described pressure transducer, described display circuit and described control circuit respectively.
2. intelligent liquid level display controller according to claim 1 is characterized in that, described processor is connected successively by operational amplification circuit, A/D change-over circuit, comparison control circuit.
3. intelligent liquid level display controller according to claim 2 is characterized in that, described comparison control circuit adopts chip LM3914.
4. intelligent liquid level display controller according to claim 1 is characterized in that, described display circuit comprises a plurality of LED luminotrons, and described a plurality of LED luminotrons are arranged by point-like pattern or bar chart pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205472612U CN201837900U (en) | 2010-09-29 | 2010-09-29 | Intelligent liquid level display controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205472612U CN201837900U (en) | 2010-09-29 | 2010-09-29 | Intelligent liquid level display controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837900U true CN201837900U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205472612U Expired - Lifetime CN201837900U (en) | 2010-09-29 | 2010-09-29 | Intelligent liquid level display controller |
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| CN (1) | CN201837900U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436268A (en) * | 2011-09-28 | 2012-05-02 | 上海宏力半导体制造有限公司 | System for monitoring variation of liquid volume in real time |
| CN103883507A (en) * | 2014-04-19 | 2014-06-25 | 湖南科技学院 | Full-automatic electronic type water pumping control device |
| CN104345745A (en) * | 2014-11-07 | 2015-02-11 | 重庆颐洋企业发展有限公司 | Stepless liquid level control device of hyperpure water machine water storage tank |
| CN105159339A (en) * | 2015-08-12 | 2015-12-16 | 成都易思科科技有限公司 | Liquid level detection and adjustment method with solar power supply based on single-chip microcomputer |
| CN102436268B (en) * | 2011-09-28 | 2016-12-14 | 上海华虹宏力半导体制造有限公司 | The real-time monitoring system of liquid volume variable quantity |
-
2010
- 2010-09-29 CN CN2010205472612U patent/CN201837900U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436268A (en) * | 2011-09-28 | 2012-05-02 | 上海宏力半导体制造有限公司 | System for monitoring variation of liquid volume in real time |
| CN102436268B (en) * | 2011-09-28 | 2016-12-14 | 上海华虹宏力半导体制造有限公司 | The real-time monitoring system of liquid volume variable quantity |
| CN103883507A (en) * | 2014-04-19 | 2014-06-25 | 湖南科技学院 | Full-automatic electronic type water pumping control device |
| CN104345745A (en) * | 2014-11-07 | 2015-02-11 | 重庆颐洋企业发展有限公司 | Stepless liquid level control device of hyperpure water machine water storage tank |
| CN105159339A (en) * | 2015-08-12 | 2015-12-16 | 成都易思科科技有限公司 | Liquid level detection and adjustment method with solar power supply based on single-chip microcomputer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUJIAN NEWCAPEC INFORMATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FUJIAN CAPEC TECHNOLOGY CO., LTD. Effective date: 20150422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350013 FUZHOU, FUJIAN PROVINCE TO: 350108 FUZHOU, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150422 Address after: 350108, science and Technology East Road, Fuzhou Town, Minhou County, Fujian City, China, 2 floor, building 8, innovation building, Nanhai hi tech Industrial Park Patentee after: FUJIAN BRAND-NEW CAP INFORMATION TECHNOLOGY CO., LTD. Address before: Gulou District of Fuzhou City, Fujian province 350013 Dongpu Road No. 138 building Dajing lake before four Patentee before: Fujian CAPEC Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |