CN202420602U - Water level automatic measuring device - Google Patents
Water level automatic measuring device Download PDFInfo
- Publication number
- CN202420602U CN202420602U CN2012200142193U CN201220014219U CN202420602U CN 202420602 U CN202420602 U CN 202420602U CN 2012200142193 U CN2012200142193 U CN 2012200142193U CN 201220014219 U CN201220014219 U CN 201220014219U CN 202420602 U CN202420602 U CN 202420602U
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- water level
- level sensor
- water
- data acquisition
- data
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Abstract
The utility model relates to a water level automatic measuring device. The water level automatic measuring device is provided with a water level sensor and a wireless data collecting instrument, wherein the water level sensor is in data connection with the wireless data collecting instrument by an RS485 data wire; the water level sensor is electrically connected with the wireless data collecting instrument by a power supply wire; the water level sensor is provided with a shell; a highly-optimized and equally-divided electrode contact group is arranged at the side wall of the shell; a switch circuit board is arranged in the shell; and a collecting CPU, a ground wire and a physical graduated scale are arranged on the switch circuit board. The water level automatic measuring device provided by the utility model has the advantages of capability of continuously and automatically detecting water level for a long time, loose requirements on environment, low mounting expenses, good stability and high accuracy, can be applied to water level monitoring in hydraulic engineering, such as rivers, lakes, water reservoirs, hydropower stations, irrigation districts, water transmission and the like, and can be also used for liquid level monitoring in municipal works such as tap water, urban sewage treatment, urban road accumulated water and the like, as well as food chemical engineering, such as wines, beverages and the like.
Description
Technical field
The utility model belongs to a kind of measurement mechanism, and concrete is a kind of measurement mechanism of measuring different waters middle water level in the hydraulic engineering.
Background technology
Because the hydraulic engineering great majority are in remote area, the blowdown pumping plant is being born city sewage discharge task, for many years; A difficult problem of drainage project management unit is perplexed in the automatic monitoring of blowdown pumping plant Inlet and outlet water pool water level for a long time, because blowdown pumping plant water quality is relatively poor, concentration of suspension is bigger in the water; Surface weeds and other floating things are more, and the complex chemical composition of water usually contains various soda acids; Has certain corrosivity; Practice shows that traditional various Level monitors are difficult to adapt to the automatic monitoring requirement of wastewater level, and its reliability and stability are difficult to break through always, and most of water level monitoring systems are built up soon and just gone out of use because of using.Water project management unit is very loaded down with trivial details and collect incomplete to the collection of the real-time information of hydraulic engineering; Waterlevel data is one of most important data in the water conservancy; Existing waterlevel data basically all is that the field staff reports to management unit through phone, text; Traditional water level monitoring is difficult to adapt to modern water conservancy development, has other water levels that are in remote hydraulic engineering unit still to report through phone, text through the method for artificial observation again.
The utility model content
The purpose of the utility model is in order to address the above problem; A kind of automatic water level measurement device is proposed; This automatic water level measurement device ability long term continuous automatic sensed water level; Environmental requirement is loose; Mounting cost is low, good stability, degree of accuracy high, can be applicable to the water level monitoring in the hydraulic engineerings such as rivers, lake, reservoir, power station, irrigated area and water delivery, also can be used for the level monitoring in the food chemical engineerings such as municipal works such as tap water, municipal sewage treatment, water on urban streets and drinks, beverage.
The purpose of the utility model realizes through following technical scheme: automatic water level measurement device; It is characterized in that: be provided with level sensor and data acquisition appearance two parts; Level sensor passes through the RS485 data line, is connected with data acquisition appearance data, and level sensor is connected with the power supply of data acquisition appearance through power lead; Said level sensor is provided with housing, and housing sidewall is provided with the electrode contact crowd of high optimization and five equilibrium, is provided with switching circuit board in the housing, and said switching circuit board is provided with gathers CPU, ground wire, physics rule; Said data acquisition appearance adopts ADS1271 as data acquisition chip; Characteristics to this chip fully differential; Input signal fully differential, reference voltage base fully differential design its peripheral circuit, at first input signal have been carried out the prime pre-service; Mainly contain prime amplifier, differential driver design, making the signal that inputs to ADC is fully differential; Reference voltage base has adopted benchmark voltage stabilizing chip output 3v, and has carried out the buffered with reference to input, reduces the influence of back level to reference voltage to the full extent; Because ADS1271 needs external clock, has designed the external clock generation unit; Logic interfacing partly comprises the logic control pin of ADS1271, in order to realization its mode of operation, data output format is controlled; Data-interface is 4-20ma, RS485, can carry out multi-channel data acquisition, and communication module has adopted Siemens MC 35i radio transmitting and receiving chip.
The embodiment that the utility model further improves and replenishes:
Being high optimization and the electrode contact crowd of five equilibrium on the housing sidewall of said level sensor, requiring to confirm the spacing of electrode contact according to measuring accuracy, can be 1mm, 5mm, 10mm.：
The sensor of the utility model by height optimization and etc. sub-electrode, switching circuit board, collection CPU be sealed in the housing; Height optimization and five equilibrium electrode contact are connected through circuit board with the interior switching circuit board of shell, collection CPU.Sensor by height optimization and etc. sub-electrode, gather CPU, switching circuit board, RS485 data line, power lead, ground wire, physics rule and the water-tight corrosion-resistant housing that insulate and form.Housing is convenient to different installation environments for the rectangular parallelepiped of sealing, and whole housing is made up of water-tight corrosion-proof corrosion line insulating material, fixed width, and length can be set different ranges according to different measurement ranges.Being high optimization and the electrode contact crowd of five equilibrium on the housing sidewall, requiring to confirm the spacing of electrode contact according to measuring accuracy, can be 1mm, 5mm, 10mm etc., and communication module has adopted Siemens MC 35i radio transmitting and receiving chip.It has the high-speed transfer that permanent online and high transmission rates make voice, data, SMS and facsimile message.
Description of drawings
Fig. 1 is the level sensor structural representation of the utility model;
Fig. 2 is electrode, switching circuit board and the collection cpu circuit figure of the utility model;
Fig. 3 is the data acquisition appearance panel synoptic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment: referring to accompanying drawing 1,2,3; Automatic water level measurement device; It is characterized in that: be provided with level sensor and data acquisition appearance two parts; Level sensor is connected with data acquisition appearance data through RS485 data line, 4, and level sensor is connected with the power supply of data acquisition appearance through power lead 5; Said level sensor is provided with housing 8, and housing sidewall is provided with the electrode contact crowd 1 of high optimization and five equilibrium, is provided with switching circuit board 3 in the housing, and said switching circuit board is provided with gathers CPU2, ground wire 6, physics rule 7; Said data acquisition appearance adopts ADS 1271 as data acquisition chip.Characteristics to this chip fully differential; Input signal fully differential, reference voltage base fully differential design its peripheral circuit, at first input signal have been carried out the prime pre-service; Mainly contain prime amplifier, differential driver design, making the signal that inputs to ADC is fully differential; Reference voltage base has adopted benchmark voltage stabilizing chip output 3v, and has carried out the buffered with reference to input, reduces the influence of back level to reference voltage to the full extent; Because ADS1271 needs external clock, has designed the external clock generation unit; Logic interfacing partly comprises the logic control pin of ADS1271, in order to realization its mode of operation, data output format is controlled; Data-interface is 4-20ma, RS485, can carry out multi-channel data acquisition, and communication module has adopted Siemens MC 35i radio transmitting and receiving chip; Being high optimization and the electrode contact crowd of five equilibrium on the housing sidewall of said level sensor, requiring to confirm the spacing of electrode contact according to measuring accuracy, can be 1mm, 5mm, 10mm.
Principle of work is that sensor can utilize the current potential of the conductivity measurement electrode of water, thereby measure waterlevel data under the control of data acquisition appearance; During measurement, start working by the collection CPU of external power source; Gather CPU and send pulse control signal; Make the chip in the switching circuit board in the sensor produce scanning sequence; Begin to scan successively (COM Fig. 1-1 is zero point) downwards from the top of sensor; When the electrode contact that scans with a scale such as water surface height such as grade, promptly send the signal that stops to scan; By computing formula (256-8N
1-N
2) (explain: N1 is the number of anhydrous analog switch; N2 is the most anhydrous figure place of anhydrous analog switch) calculate the measured data of sensor; And these data are transferred on the outside data acquisition appearance through the RS485 data line, thereby calculate the distance of the water surface; According to the installation elevation at sensor place, convert corresponding waterlevel data to again, the line data of going forward side by side stores and transfers in the internet through wireless communication module.Fig. 1 is the sensor construction synoptic diagram
Sensor by height optimization and etc. sub-electrode, gather CPU, switching circuit board, RS485 data line, power lead, ground wire, physics rule and the water-tight corrosion-resistant housing that insulate and form.Housing is convenient to different installation environments for the rectangular parallelepiped of sealing.Whole housing is made up of water-tight corrosion-proof corrosion line insulating material, fixed width, and length can be set different ranges according to different measurement ranges.Being high optimization and the electrode contact crowd of five equilibrium on the housing sidewall, requiring to confirm the spacing of electrode contact according to measuring accuracy, can be 1mm, 5mm, 10mm etc.This structural representation is the sensor construction synoptic diagram of 10mm precision.Circuit chip is fixed on the switching circuit board, and the physics rule is printed on the switching circuit board; Electrode, collection CPU, switching circuit board, RS485 data line, power lead, the whole sealing and fixing of ground wire are in housing, and electrode is connected with collection CPU through the circuit of switching circuit board; Gather CPU by power lead external power supply powered operation, this power supply is the power supply of whole sensor; The RS485 data line is the data-signal output that collects.
The left side is a switch electroplax circuit, and the right is for gathering cpu circuit, and IC1～IC4 is one group; In the on-off circuit circuit diagram, the GND line is a public pole, constitutes the switch loop with electrode, and switching signal gets into IC10 through IC9, and IC10 passes to the outside through IC11.
What should explain at last is: obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model.
Claims (2)
1. automatic water level measurement device; It is characterized in that: be provided with level sensor and data acquisition appearance two parts; Level sensor is connected with data acquisition appearance data through RS485 data line, (4), and level sensor is connected with the power supply of data acquisition appearance through power lead (5); Said level sensor is provided with housing (8), and housing sidewall is provided with the electrode contact crowd (1) of high optimization and five equilibrium, is provided with switching circuit board (3) in the housing, and said switching circuit board is provided with gathers CPU (2), ground wire (6), physics rule (7); Said data acquisition appearance adopts ADS1271 as data acquisition chip; Characteristics to this chip fully differential; Input signal fully differential, reference voltage base fully differential design its peripheral circuit, at first input signal have been carried out the prime pre-service; Mainly contain prime amplifier, differential driver design, making the signal that inputs to ADC is fully differential; Reference voltage base has adopted benchmark voltage stabilizing chip output 3v, and has carried out the buffered with reference to input, reduces the influence of back level to reference voltage to the full extent; Because ADS1271 needs external clock, has designed the external clock generation unit; Logic interfacing partly comprises the logic control pin of ADS1271, in order to realization its mode of operation, data output format is controlled; Data-interface is 4-20ma, RS485, can carry out multi-channel data acquisition, and communication module has adopted Siemens MC 35i radio transmitting and receiving chip.
2. automatic water level measurement device according to claim 1; It is characterized in that: the electrode contact crowd who on the housing sidewall of said level sensor is high optimization and five equilibrium; Requiring to confirm the spacing of electrode contact according to measuring accuracy, can be 1mm, 5mm, 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200142193U CN202420602U (en) | 2012-01-13 | 2012-01-13 | Water level automatic measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200142193U CN202420602U (en) | 2012-01-13 | 2012-01-13 | Water level automatic measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420602U true CN202420602U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200142193U Expired - Fee Related CN202420602U (en) | 2012-01-13 | 2012-01-13 | Water level automatic measuring device |
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| Country | Link |
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| CN (1) | CN202420602U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889914A (en) * | 2012-10-26 | 2013-01-23 | 浙江大学 | Float type level meter adopting reference water level and method for improving precision and reliability |
| CN103616728A (en) * | 2013-11-15 | 2014-03-05 | 中航光电科技股份有限公司 | Underwater signal sensor |
| CN104132710A (en) * | 2014-06-27 | 2014-11-05 | 华北水利水电大学 | Water level flow sensor, water level flow monitoring system and water level flow monitoring method |
| CN104612236A (en) * | 2014-12-18 | 2015-05-13 | 重庆多邦科技发展有限公司 | Urban road water-logging early warning and automatic treatment system based on technology of internet of things |
-
2012
- 2012-01-13 CN CN2012200142193U patent/CN202420602U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889914A (en) * | 2012-10-26 | 2013-01-23 | 浙江大学 | Float type level meter adopting reference water level and method for improving precision and reliability |
| CN103616728A (en) * | 2013-11-15 | 2014-03-05 | 中航光电科技股份有限公司 | Underwater signal sensor |
| CN103616728B (en) * | 2013-11-15 | 2016-08-10 | 中航光电科技股份有限公司 | One has water signal transducer |
| CN104132710A (en) * | 2014-06-27 | 2014-11-05 | 华北水利水电大学 | Water level flow sensor, water level flow monitoring system and water level flow monitoring method |
| CN104132710B (en) * | 2014-06-27 | 2018-05-18 | 华北水利水电大学 | Stage-discharge sensor, stage-discharge monitoring system and stage-discharge monitoring method |
| CN104612236A (en) * | 2014-12-18 | 2015-05-13 | 重庆多邦科技发展有限公司 | Urban road water-logging early warning and automatic treatment system based on technology of internet of things |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Wu Road, garden 430223 Hubei city in Wuhan Province, East Lake University of science and Technology Industry Development Zone Hui building 4038 Patentee after: Wuhan Century Water Technology Co., Ltd. Address before: 430000 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 716 Hua Le villa 6 Building 3 unit 202 room Patentee before: Wuhan Century Water Technology Co., Ltd. |
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| DD01 | Delivery of document by public notice |
Addressee: Wuhan Century Water Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20180113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |