CN1865866A - Flat capacitance type electronic water level gauge - Google Patents
Flat capacitance type electronic water level gauge Download PDFInfo
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- CN1865866A CN1865866A CN 200610019108 CN200610019108A CN1865866A CN 1865866 A CN1865866 A CN 1865866A CN 200610019108 CN200610019108 CN 200610019108 CN 200610019108 A CN200610019108 A CN 200610019108A CN 1865866 A CN1865866 A CN 1865866A
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Abstract
The disclosed electronic water-level gage based on plane capacitor comprises: a sensor 1 arranged on the column cement pole A, a control box B arranged on top of A and composed by a signal modulation circuit 2, a MCP 3, a wireless communication module 4, and a cell-voltage monitor circuit 5. This invention has well precision and real-time performance with simple structure, and has wide application.
Description
Technical field
The present invention relates to a kind of gauge, relate in particular to a kind of electronics gauge based on flat capacitance type.
Background technology
Gauge is widely used in the hydrologic observation (level measuring) of rivers and lakes, but all adopts common gauge basically and by personal monitoring's SEA LEVEL VARIATION and reading.Concrete grammar is that special gauge is installed in the water.Usually tree one mast is fixed on gauge on the mast simultaneously, by observation personnel timing reading and recording.This kind method is simply direct, need not the energy, but the observation personnel need be in the action, observation inconvenience, and measurement accuracy is not high; Data can't be in real time and round-the-clock automatic monitoring in addition.How to read the big difficulty that waterlevel data is existing water level measurement method exactly at anti-night in flood season.
Summary of the invention
The objective of the invention is provides a kind of electronics gauge based on flat capacitance type at the deficiency of above-mentioned common gauge, and all-weather real-time is monitored automatically, and measures accurately, has saved great amount of manpower simultaneously.
The object of the present invention is achieved like this:
Specifically:
As Fig. 1, Fig. 4, the present invention is made up of with signal conditioning circuit 2, microprocessor 3, wireless communication module 4 and battery voltage supervisory circuit 5 in the control enclosure B that is arranged on the square column concrete stake bar A top the sensor 1 that is arranged on the square column concrete stake bar A;
The output terminal of sensor 1 links to each other with the input end of signal conditioning circuit 2, and signal conditioning circuit 2, wireless communication module 4 and battery voltage supervisory circuit 5 link to each other with microprocessor 3 respectively;
Described sensor 1 is the electronics level sensor that a kind of plane capacitance pole plate is formed;
Described signal conditioning circuit 2 is that a kind of water level information is nursed one's health through sensor 1 conversion is the corresponding simulating voltage signal;
Described microprocessor 3 is microprocessors of a kind of super low-power consumption;
Described wireless communication module 4 is a kind of micro power consumption wireless communication chips;
Described battery voltage supervisory circuit 5 is a kind of circuit that comprise battery voltage monitoring chip and optocoupler.
Principle of work of the present invention is:
Can easily SEA LEVEL VARIATION be converted to electric signal through the level sensor 1 after waterproof and the high insulation processing, this signal is carried out linearity correction by signal conditioning circuit 2 conditioning back by microprocessor 3 and water level is debated the knowledge computing, and the waterlevel data after the computing is delivered to wireless communication module 4 sends out in real time; In addition, owing to adopt battery voltage supervisory circuit 5, the present invention also possesses cell voltage real-time monitoring alarming function.
The present invention has following advantage and good effect:
1, simple in structure, accurate measurement;
2, real-time is good, and the round-the-clock monitoring of energy need not manually-operated;
3, owing to adopted little process chip of little power consumption and micro power consumption wireless communication chip to be in a kind of little power consumption operating conditions or dormant state to guarantee the present invention, thus the mission life that prolongs battery.
4, owing to adopt electric voltage observation circuit, can monitor battery electric quantity, and point out the staff in time to change battery automatically, easy to maintenance.
5, be widely used in the level measuring of rivers and lakes.
Description of drawings
Fig. 1 is a block diagram of the present invention;
Fig. 2 is the level sensor structural representation;
Fig. 3 is an electrical schematic diagram of the present invention;
Fig. 4 is a mechanical construction drawing of the present invention.
Wherein:
1-plane capacitance level sensor is called for short level sensor;
1.1, the metal of first group, second group pectination of 1.2-pool bar;
1.3-insulation material negative.
The 2-signal conditioning circuit;
2.1-ICL8038 sine-wave generator; 2.2-follower;
2.3-see-saw circuit; 2.4-sinusoidal wave phase shifter;
2.5-sine wave/square wave conversion circuit; 2.6-the metering circuit of level sensor;
2.7-4066A analog switch; 2.8-active low-pass filter.
3-super low-power consumption microprocessor is called for short microprocessor.
The 4-wireless communication module.
The 5-battery flowmeter charge circle;
5.1-voltage monitoring chip; 5.2-optocoupler.
A-square column concrete stake bar; The B-control enclosure;
The artificial scale of C-; D-rain Yang Peng.
Embodiment
Further specify below in conjunction with drawings and Examples:
1, level sensor 1
As Fig. 2, level sensor 1 is made up of the metal pool bar 1.1,1.2 and the insulation material negative 1.3 of two groups of pectinations; Metal pool bar 1.1,1.2 interlaced being embedded on the insulation material negative 1.2 of two groups of pectinations, and link to each other with the input end of signal conditioning circuit 2 by two lead a, b;
2, signal conditioning circuit 2
One tunnel output of follower 2.2 is through the metering circuit 2.6 of level sensor 1 access level sensor, and another road output connects sinusoidal wave phase shifter 2.4 input ends through see-saw circuit 2.3; The output terminal of see-saw circuit 2.3 not only links to each other with sinusoidal wave phase shifter 2.4 input ends, and links to each other with metering circuit 2.6 input ends of level sensor by C6; Sinusoidal wave phase shifter 2.4 exports sine wave/square wave conversion circuit 2.5 to and finishes the switch control end that exports 4066A analog switch 2.7 after the waveform transformation to, the input end of 4066A analog switch 2.7 links to each other with level sensor metering circuit 2.6 output terminals, 4066A analog switch 2.7 exports active low-pass filter 2.8 input ends to, and the output of active low-pass filter 2.8 links to each other with the input end of microprocessor 3.
The principle of work of signal conditioning circuit 2 is:
The sine wave signal that ICL8038 sine-wave generator circuit 2.1 produces is delivered to an end of level sensor 1 behind follower 2.2 and inverting amplifier 2.3, the other end of level sensor 1 is received the end of oppisite phase of the metering circuit 2.6 of level sensor, the output terminal of level sensor metering circuit 2.6 is received the input end of 4066A analog switch 2.7, the output terminal of see-saw circuit 2.3 exports the switch control end that exports 4066A analog switch 2.7 after sine wave/square wave conversion circuit 2.5 is finished waveform transformation to through sinusoidal wave phase shifter 2.4, and the water level electric signal of the output terminal of 4066A analog switch 2.7 after will nursing one's health behind the active low-pass filter 2.8 delivered to the A/D input end of super low-power consumption microprocessor MSP430F149.
3, microprocessor 3
MSP430F149 forms by the super low-power consumption microprocessor chip, the embedded A/D circuit input end of MSP430F149 links to each other with the output terminal of the active low-pass filter 2.8 of signal conditioning circuit 2, the non-shielding interrupting input end of MSP430F149 links to each other with the output terminal of the optocoupler TL817 of battery voltage supervisory circuit 5, the serial ports of MSP430F149 and I/O mouth link to each other with the data terminal of wireless communication module 4, are realized the operation mode and the transmitting-receiving conversion of wireless communication module 4 by the I/O end output control signal of MSP430F149.
4, wireless communication module 4
5, battery voltage supervisory circuit 5
Battery voltage supervisory circuit 5 is made up of voltage monitoring chip MAX801 and optocoupler TL817, and the input end of MAX801 links to each other with the electric battery output voltage terminal, and the MAX801 output terminal links to each other with the non-shielding interrupting input end of microprocessor 3 behind optocoupler TL817.
6, physical construction of the present invention
As Fig. 4, physical construction of the present invention comprises square column concrete stake bar A, sensor 1, control enclosure B, artificial scale C and Yu Yang canopy D;
The bottom of square column concrete stake bar A is imbedded under water and is taken root, be provided with existing artificial scale C on the square column concrete stake bar A plane of pulling in to shore, other plane at square column concrete stake bar A is provided with sensor 1, is provided with control enclosure B at the top of square column concrete stake bar A, and rainy positive canopy D is set on control enclosure B.
Also can engrave level scale, the present invention and artificial scale C are integrated at sensor 1.
Claims (7)
1, a kind of electronics gauge based on flat capacitance type is characterized in that:
Form by interior signal conditioning circuit (2), microprocessor (3), wireless communication module (4) and the battery voltage supervisory circuit (5) of control enclosure (B) that is arranged on the level sensor (1) on the square column concrete stake bar (A) and be arranged on square column concrete stake bar (A) top;
The output terminal of level sensor (1) links to each other with the input end of signal conditioning circuit (2), and signal conditioning circuit (2), wireless communication module (4) and battery voltage supervisory circuit (5) link to each other with microprocessor (3) respectively;
Described level sensor (1) is the electronics level sensor that a kind of plane capacitance pole plate is formed;
Described signal conditioning circuit (2) is that a kind of water level information is nursed one's health through sensor (1) conversion is the circuit of corresponding simulating voltage signal;
Described microprocessor (3) is a kind of microprocessor of super low-power consumption;
Described wireless communication module (4) is a kind of micro power consumption wireless communication chip;
Described battery voltage supervisory circuit (5) is a kind of circuit that comprises battery voltage monitoring chip and optocoupler.
2, by the described a kind of electronics gauge of claim 1, it is characterized in that based on flat capacitance type:
Level sensor (1) is made up of the metal pool bar (1.1,1.2) and the insulation material negative (1.3) of two groups of pectinations; The metal pool bar (1.1,1.2) of two groups of pectinations is interlaced to be embedded on the insulation material negative (1.2), and links to each other with the input end of signal conditioning circuit (2) by two leads (a, b).
3, by the described a kind of electronics gauge of claim 1, it is characterized in that based on flat capacitance type:
Signal conditioning circuit (2) is made up of metering circuit (2.6), 4066A analog switch (2.7), the active low-pass filter (2.8) of ICL8038 sine-wave generator circuit (2.1), follower (2.2), see-saw circuit (2.3), sinusoidal wave phase shifter (2.4), sine wave/square wave conversion circuit (2.5), level sensor;
One tunnel output of follower (2.2) is through the metering circuit (2.6) of level sensor (1) access level sensor, and another road output connects sinusoidal wave phase shifter (2.4) input end through see-saw circuit (2.3); The output terminal of see-saw circuit (2.3) not only links to each other with sinusoidal wave phase shifter (2.4) input end, and links to each other with metering circuit (2.6) input end of level sensor by electric capacity (C6); Sinusoidal wave phase shifter (2.4) exports sine wave/square wave conversion circuit (2.5) to and finishes the switch control end that exports 4066A analog switch (2.7) after the waveform transformation to, the input end of 4066A analog switch (2.7) links to each other with level sensor metering circuit (2.6) output terminal, 4066A analog switch (2.7) exports active low-pass filter (2.8) input end to, and the output of active low-pass filter (2.8) links to each other with the input end of microprocessor (3).
4, by the described a kind of electronics gauge of claim 1, it is characterized in that based on flat capacitance type:
Microprocessor (3) is made up of super low-power consumption microprocessor chip MSP430F149.
5, by the described a kind of electronics gauge of claim 1, it is characterized in that based on flat capacitance type:
Wireless communication module (4) is made up of the PTR2000 module.
6, by the described a kind of electronics gauge of claim 1, it is characterized in that based on flat capacitance type:
Battery voltage supervisory circuit (5) is made up of voltage monitoring chip MAX801 and optocoupler TL817, and the input end of MAX801 links to each other with the electric battery output voltage terminal, and the MAX801 output terminal links to each other with the non-shielding interrupting input end of microprocessor (3) behind optocoupler TL817.
7, by the described a kind of electronics gauge of claim 1, it is characterized in that based on flat capacitance type:
Physical construction comprises square column concrete stake bar (A), sensor (1), control enclosure (B), artificial scale (C) and rain Yang Peng (D);
The bottom of square column concrete stake bar (A) is imbedded under water and is taken root, be provided with existing artificial scale (C) on square column concrete stake bar (A) plane of pulling in to shore, be provided with sensor (1) on other plane of square column concrete stake bar (A), be provided with control enclosure (B) at the top of square column concrete stake bar (A), rainy Yang Peng (D) is set on control enclosure (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100191080A CN100402991C (en) | 2006-05-19 | 2006-05-19 | Flat capacitance type electronic water level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100191080A CN100402991C (en) | 2006-05-19 | 2006-05-19 | Flat capacitance type electronic water level gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1865866A true CN1865866A (en) | 2006-11-22 |
| CN100402991C CN100402991C (en) | 2008-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100191080A Expired - Fee Related CN100402991C (en) | 2006-05-19 | 2006-05-19 | Flat capacitance type electronic water level gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100402991C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388810B (en) * | 2007-09-11 | 2010-12-29 | 上海电机学院 | Micro radio centralized and decentralized system and transmission method thereof |
| CN103090928A (en) * | 2011-11-02 | 2013-05-08 | 爱三工业株式会社 | Sensor device |
| CN105300477A (en) * | 2015-11-03 | 2016-02-03 | 天津市飞跃兄弟测控技术有限公司 | Water level measuring method and ruler |
| CN106871992A (en) * | 2017-02-23 | 2017-06-20 | 武汉世纪水元科技股份有限公司 | A kind of wireless water level acquisition system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5608171A (en) * | 1993-11-16 | 1997-03-04 | Hunter; Robert M. | Distributed, unattended wastewater monitoring system |
| US5519639A (en) * | 1994-03-04 | 1996-05-21 | The Babcock & Wilcox Company | Level indication system |
| CN2535787Y (en) * | 2002-03-13 | 2003-02-12 | 福建省南平现代电子技术研究所 | Capacitor-type liquid-level sensor |
| CN2615977Y (en) * | 2003-04-28 | 2004-05-12 | 徐庆宇 | Intelligent radio comprehensive alarming system based on local telephone network |
| CN2864622Y (en) * | 2005-12-27 | 2007-01-31 | 太原理工天成科技股份有限公司 | Wireless operable canal level flow meter |
-
2006
- 2006-05-19 CN CNB2006100191080A patent/CN100402991C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388810B (en) * | 2007-09-11 | 2010-12-29 | 上海电机学院 | Micro radio centralized and decentralized system and transmission method thereof |
| CN103090928A (en) * | 2011-11-02 | 2013-05-08 | 爱三工业株式会社 | Sensor device |
| CN105300477A (en) * | 2015-11-03 | 2016-02-03 | 天津市飞跃兄弟测控技术有限公司 | Water level measuring method and ruler |
| CN105300477B (en) * | 2015-11-03 | 2019-06-25 | 天津市飞跃兄弟测控技术有限公司 | A kind of water level measurement method and water level measuring scale |
| CN106871992A (en) * | 2017-02-23 | 2017-06-20 | 武汉世纪水元科技股份有限公司 | A kind of wireless water level acquisition system |
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| Publication number | Publication date |
|---|---|
| CN100402991C (en) | 2008-07-16 |
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Granted publication date: 20080716 Termination date: 20140519 |