CN2433608Y - Water level measuring control device - Google Patents
Water level measuring control device Download PDFInfo
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- CN2433608Y CN2433608Y CN 00225152 CN00225152U CN2433608Y CN 2433608 Y CN2433608 Y CN 2433608Y CN 00225152 CN00225152 CN 00225152 CN 00225152 U CN00225152 U CN 00225152U CN 2433608 Y CN2433608 Y CN 2433608Y
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Abstract
The utility model relates to a water level detecting control device. In the utility model, a pressure sensor is connected with a signal intelligent processing unit, an output end of the pressure sensor is connected with a micro processing center CPU, a signal output end on the CPU are respectively connected with a light emitting diode and a buzzer, a control output end of the CPU is connected with a water pump control system, and a high frequency switch power supply respectively supplies electricity to an analog/digital converter and the CPU. The utility model adopts an integrative circuit design, the peripheral circuit of the utility model is simple and reliable, and a sensor is arranged on the bottom of the water tank without influence of liquid level. The utility model can timely alarm and automatically interrupt the running of water pumps for prevent the run idle of water pump motors and enhancing the service life of water pumps.
Description
The utility model relates to a kind of detection of electrons control device that is used for cistern water level, belongs to a kind of street roller water sprinkler cistern water level detection control apparatus that is used for especially.
The watering quality of street roller be directly connected to the consolidation effect of street roller, and the watering performance of the Detection ﹠ Controling of cistern water level and street roller is closely related.At present domestic and international first-class YZC street roller production firm, the detection mode to watering case water level is divided into two types usually: a kind of is the mechanical detection mode, is that the driver needs left alone without help car to get off to check, has both influenced work, again inconvenience at the other water level gauge that is provided with of water tank; Another kind is the liquid level gauge detection mode, and it is a kind of passive inspection, has only cistern water level to arrive after the alarm water level, has just known lack of water.
The purpose of this utility model is will provide a kind of can warn in advance when lack of water, and can interrupt the water level detecting and controlling device of sprinkler system operation automatically.
Utility model has been achieved in that a pressure transducer, two leads on the sensor connect the signal intelligent processing unit, the little processing enter CPU of signal processing unit output termination, two signal output parts on the CPU are sending and receiving optical diode, hummer respectively, its control output end water pump control system; High frequency switch power, A/D converter and the little processing enter CPU to the signal intelligent processing unit powers respectively.
The utility model adopts incorporate circuit design, and peripheral circuit is simple and reliable.Use high-precision pressure sensor to be installed on water tank bottom, not influenced by liquid level.Can in time report to the police, and interrupt water pump operation automatically, thereby prevent the idle running of pump motor, improve the serviceable life of water pump.
Introduce the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model functional-block diagram;
Fig. 2 is an intelligent processing unit circuit diagram in the utility model;
Fig. 3 is a control system of water pump circuit diagram in the utility model.
With reference to Fig. 1, pressure transducer 1, positive and negative electrode two leads connect signal intelligent processing unit 2, the little processing enter CPU3 of signal processing unit output termination, CPU has two signal output parts sending and receiving optical diode 4, hummer 5 respectively, its control output end water pump control system 6; High frequency switch power 7, A/D converter and the little processing enter CPU3 to signal intelligent processing unit 2 powers respectively.
With reference to Fig. 2, the R57 of pressure transducer 1 positive and negative electrode 10K in parallel, sensor 1 positive pole also connects the Z7 negative pole of voltage stabilizing 5V, the in-phase input end of operational amplifier IC1 by the R39 of 10K; The sensing utmost point 1 negative pole also connects the pin 1, the R31 of 100K of potentiometer RW13, optical isolation amplifier IC3 of positive pole, the 5.5K of Z7; Another utmost point of potentiometer RW13 meets the R27 of IC1 inverting input, 4.9K by the R28 of 50K, the centre tap of potentiometer RW13 connects the positive pole of Z7, the output terminal pin 6 of another termination of R27 IC1, operational amplifier IC2 in-phase input end, C7 and the R27 of 0.1 μ F are connected in parallel; Another utmost point of R31 meets the C8 of IC2 inverting input, IC3 pin 4,100 μ F, and another utmost point of C8 meets the R30 of IC2 output terminal pin 6,1K, and another utmost point of R30 connects IC3 pin 2, and IC3 pin 3 connects+VI; IC1 pin 7 connects+the zero potentiometer RW14 of VCC, its pin 8, a 9.9K of pin 9 series connection, and the centre tap of RW14 connects ICI pin 7, and two pin 4 of IC1, IC2 connect-VCC; IC3 pin 5 connects operational amplifier IC4 in-phase input end, also connects the potentiometer RW15 of R32, the 50K of 100K, ground connection more successively, IC3 pin 6 connects+VCC, connect IC4 pin 7, IC4 pin 4 connects-VCC, and IC4 inverting input and output terminal pin 6 connect the input end of CPU by A/D converter.
With reference to Fig. 3, motor one utmost point of the magnetic force water pump MD of 24V/60W, meet the R44 of 300 Ω, flat ripple inductor L3, another utmost point of L3 connects+24V power supply, 100 μ F electrochemical capacitor C16 positive poles, the negative pole of C16 connects R36, the C37 of diode D1 positive pole, C13, electrochemical capacitor C4 negative pole, 10K, the pin 1 of pulse transformer L2, and the pin 2 of L2 meets positive pole, the electrochemical capacitor C24 negative pole of negative pole, C5, electrochemical capacitor C12 negative pole, C9, C21, the voltage stabilizing diode Z4 of electrochemical capacitor C8, potentiometer RW7, the C15 of C29,5K; The pin 3 of L2 connects C37, R36, C4 positive pole, C13, C25, BG3 emitter, the pin 4 of L2 meets C8 positive pole, C5, flat ripple inductor L1, another utmost point of L1 meets the R40 of C12 positive pole, C9,50K, another utmost point of R40 connects the inverting input of C21, Z5 negative pole, voltage comparator ic, and the in-phase input end of IC connects the tap of Z5 positive pole, C15, RW7; The collector of BG3 connects another utmost point of motor, C17, C25, the D1 negative pole of MD, R44 and C17 join, the BG3 base stage connects the BG2 emitter by the R48 of 100K, the collector of BG2 connects+12V, electrochemical capacitor C27 positive pole by the R56 of 56K, the C27 minus earth, the BG2 base stage connects the BG1 collector by the R48 of 100K, and the BG1 emitter connects+R64 of 5V, 56K, electrochemical capacitor C28 positive pole, the C28 minus earth; Another utmost point of R64 meets Z4 negative pole, C24 positive pole, C29, RW7; The pin 7 of IC connects+9V, and pin 4 connects-9V, and IC output terminal 6 connects the CPU input end, and another utmost point of R52 connects the CPU output terminal.Capacitor C 5, C9, C13, C15, C17, C21, C25, C29, C37 are 104 μ F/16V; C4, C8, C12, C24 are 47 μ F/50V; C27, C28 are 47 μ F/25V.
After the utility model start, carry out the pressure simulation sample of signal, after intelligent signal Processing, filtering, carry out the A/D conversion, amplify by an operational amplification circuit and calculate by sensor.After the analyzing and processing, by CPU signal is directly delivered to water level indicator, if be lower than with reference to fiducial value, CPU is divided into two groups with signal, indication of one group of output water level and sound and light alarm, and the inhibition signal of another group output low level shuts down water pump.
Claims (2)
1, a kind of water level detecting and controlling device, form by pressure transducer, little processing enter CPU, light emitting diode, hummer and high frequency switch power etc., it is characterized in that: pressure transducer (1), positive and negative electrode two leads connect signal intelligent processing unit (2), the signal processing unit output little processing enter CPU of termination (3), CPU has two signal output parts sending and receiving optical diodes (4), hummer (5) respectively, its control output end water pump control system (6); High frequency switch power (7), A/D converter and the little processing enter CPU (3) to signal intelligent processing unit (2) powers respectively.
2, by the described water level detecting and controlling device of claim 1, it is characterized in that: the composition of a, signal intelligent processing unit (2) is: the R57 of pressure transducer (1) positive and negative electrode 10K in parallel, and sensor (1) positive pole also connects the Z7 negative pole of voltage stabilizing 5V, the in-phase input end of operational amplifier IC1 by the R39 of 10K; The sensing utmost point 1 negative pole also connects the pin 1, the R31 of 100K of potentiometer RW13, optical isolation amplifier IC3 of positive pole, the 5.5K of Z7; Another utmost point of potentiometer RW13 meets the R27 of IC1 inverting input, 4.9K by the R28 of 50K, the centre tap of potentiometer RW13 connects the positive pole of Z7, the output terminal pin 6 of another termination of R27 IC1, operational amplifier IC2 in-phase input end, C7 and the R27 of 0.1 μ F are connected in parallel; Another utmost point of R31 meets the C8 of IC2 inverting input, IC3 pin 4,100 μ F, and another utmost point of C8 meets the R30 of IC2 output terminal pin 6,1K, and another utmost point of R30 connects IC3 pin 2, and IC3 pin 3 connects+VI; ICI pin 7 connects+the zero potentiometer RW14 of VCC, its pin 8, a 9.9K of pin 9 series connection, and the centre tap of RW14 connects IC1 pin 7, and two pin 4 of IC1, IC2 connect-VCC; IC3 pin 5 connects operational amplifier IC4 in-phase input end, also connects the potentiometer RW15 of R32, the 50K of 100K, ground connection more successively, IC3 pin 6 connects+VCC, connect IC4 pin 7, IC4 pin 4 connects-VCC, and IC4 inverting input and output terminal pin 6 connect the input end of CPU (3) by A/D converter.The composition of b, control system of water pump (6) is: motor one utmost point of the magnetic force water pump MD of 24V/60W, meet the R44 of 300 Ω, flat ripple inductor L3, another utmost point of L3 connects+24V power supply, 100 μ F electrochemical capacitor C16 positive poles, the negative pole of C16 connects R36, the C37 of diode D1 positive pole, C13, electrochemical capacitor C4 negative pole, 10K, the pin 1 of pulse transformer L2, and the pin 2 of L2 meets positive pole, the electrochemical capacitor C24 negative pole of negative pole, C5, electrochemical capacitor C12 negative pole, C9, C21, the voltage stabilizing diode Z4 of electrochemical capacitor C8, potentiometer RW7, the C15 of C29,5K; The pin 3 of L2 connects C37, R36, C4 positive pole, C13, C25, BG3 emitter, the pin 4 of L2 meets C8 positive pole, C5, flat ripple inductor L1, another utmost point of L1 meets the R40 of C12 positive pole, C9,50K, another utmost point of R40 connects the inverting input of C21, Z5 negative pole, voltage comparator ic, and the in-phase input end of IC connects the tap of Z5 positive pole, C15, RW7; The collector of BG3 connects another utmost point of motor, C17, C25, the D1 negative pole of MD, R44 and C17 join, the BG3 base stage connects the BG2 emitter by the R48 of 100K, the collector of BG2 connects+12V, electrochemical capacitor C27 positive pole by the R56 of 56K, the C27 minus earth, the BG2 base stage connects the BG1 collector by the R48 of 100K, and the BG1 emitter connects+R64 of 5V, 56K, electrochemical capacitor C28 positive pole, the C28 minus earth; Another utmost point of R64 meets Z4 negative pole, C24 positive pole, C29, RW7; The pin 7 of IC connects+9V, and pin 4 connects-9V, and IC output terminal 6 connects the CPU input end, and another utmost point of R52 connects the CPU output terminal; Capacitor C 5, C9, C13, C15, C17, C21, C25, C29, C37 are 104 μ F/16V; C4, C8, C12, C24 are 47 μ F/50V; C27, C28 are 47 μ F/25V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225152 CN2433608Y (en) | 2000-07-07 | 2000-07-07 | Water level measuring control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225152 CN2433608Y (en) | 2000-07-07 | 2000-07-07 | Water level measuring control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2433608Y true CN2433608Y (en) | 2001-06-06 |
Family
ID=33589321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00225152 Expired - Lifetime CN2433608Y (en) | 2000-07-07 | 2000-07-07 | Water level measuring control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2433608Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788625A (en) * | 2011-05-16 | 2012-11-21 | 上海华建电力设备股份有限公司 | Differential-pressure liquid level transmitter with displaying and alarming functions |
| CN105157006A (en) * | 2015-08-07 | 2015-12-16 | 于冲 | Boiler water level detecting device and control method thereof |
-
2000
- 2000-07-07 CN CN 00225152 patent/CN2433608Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788625A (en) * | 2011-05-16 | 2012-11-21 | 上海华建电力设备股份有限公司 | Differential-pressure liquid level transmitter with displaying and alarming functions |
| CN105157006A (en) * | 2015-08-07 | 2015-12-16 | 于冲 | Boiler water level detecting device and control method thereof |
| CN105157006B (en) * | 2015-08-07 | 2017-03-08 | 于冲 | Boiler water level detection means and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: NO.31 HEAVY DUTY INDUSTRY GROUP CO., LTD. TO: SANY HEAVY INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Sanyi Heavy Industry Co., Ltd. Patentee before: No.31 Heavy Duty Industry Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010606 |