CN1045219C - Programmable water level measuring and controlling instrument - Google Patents
Programmable water level measuring and controlling instrument Download PDFInfo
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- CN1045219C CN1045219C CN 96111953 CN96111953A CN1045219C CN 1045219 C CN1045219 C CN 1045219C CN 96111953 CN96111953 CN 96111953 CN 96111953 A CN96111953 A CN 96111953A CN 1045219 C CN1045219 C CN 1045219C
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Abstract
The present invention relates to a programmable water level measuring instrument which belongs to the technical field of the automatic operation. More specifically, the present invention relates to an instrument capable of detecting and controlling the far distance and large area water level. The present invention is characterized in that the present invention is matched with an induction type digital water level sensor, and moreover, the present invention can detect multi-path signals in a circuit way; the digital display and the light column display are adopted to display water level signals, and simultaneously, the detection and control instrument has the functions of the network information and data transmission and the over limitation and lose control alarming operation. A control part processes five-path preset signals and controls the four-path channel programmable output so that the control part can realize the program control for a multi-stage station. The instrument is designed according to modern network theories so that the present invention has the function of the rapid data acquisition and transference, and moreover, the instrument can receive the calling of data in the network by a series interface at any time. Consequently, the present invention meets the requirements brought by the new technical development.
Description
Programmable water level measuring and controlling instrument of the present invention belongs to technical field of automatic control.Definite say so a kind of can be at a distance, the instrument made of large tracts of land water level detecting and programmable control water level power dress.
Technology and the product that adopts aspect water level monitoring both at home and abroad is many at present, concludes for following several:
First kind is ultrasonic wave detector.All there is this series products mainly to be suitable for the water-level detecting in broad waters both at home and abroad.Instrument is installed in the top away from the water surface, transmits and receives electromagnetic wave to the water surface, and measures electromagnetic reflection wavelength, cycle, measures the distance of the water surface apart from instrument, thereby measures water level.As: utility model patent, self-adapting ultrasonic liquid level instrument, the patent No. [932031064].
Second kind is differential limnimeter: it is the special test equipment of differential sensor.Be to make semiconductor diffuse si film produce the piezoelectric effect of deformation, and obtain the water level electric signal by water-bed pressure.Instrument is mainly used in Signal Processing and demonstration.As: patent of invention, differential manometer, the patent No. [11] CN 86 1 05681 A.
Existing other water level measuring and controlling instrument (as: the integrated water level monitor that changes into of CN 2107010U) it only depend on one 3914 integrated circuit circuit to carry out level detection, the signal that level is divided into ten grades, with ten light emitting diode indicated water levels, wherein respectively take out 3 signals in top and the bottom, select bound for control, it can only have a upper limit alarm and water pump of control.They all belong to a kind of simple type instrument to also have (CN 86 2 10228 U water level automators) and (CN 2045479U liquid level electronics shows automatic alarming instrument), require height for accuracy of detection, just can not use under the wider situation of range of control.Particularly it does not have the control programming function, does not have the network communication function, can not adapt to the needs of modern industrial automation.
Along with the letter of science and technology hails exhibition, water level monitoring is not just used in large hydraulic engineering and the industry automatic control, and the elevated tank of high buildings and large mansions, water tower, urban groundwater road pipe network, underground tank well or the like all need the water level monitoring.Particularly large tracts of land multiple spot detection, centralized control are the roads of the certainty of modernization control, but prior art does not satisfy modern needs, so occurred induction type digital water level sensor again.In order to adapt to the technical requirement of novel sensor, particularly along with the progress of science and technology, infotech develops towards the direction of information " highway ".But various robotizations control must enter information, data high speed acquisition, transmission, among the technological trajectory of digitizing, networking.Programmable water level Monitoring and Controlling instrument is exactly the modern water level measuring and controlling instrument that designs for the needs that adapt to development of new techniques.The purpose of invention is
1, solves the existing indeterminable problem of instrument and equipment.For induction type digital water level sensor provides secondary instrument, solve specific questions such as this sensor signal teletransmission and signal demodulation.
2, solve heat transfer agent and master control network interface problem.
3, enlarge the scope of application, on the basis of water level detecting, further solve the problem of water level control.Procedural Control as multi stage pumping station.Solve the detection of large tracts of land multiple spot, central controlled problem.
Programmable water level measuring and controlling instrument of the present invention is theoretical according to modern network and measurement and control instrument that the water level signal to each sensor of control district design is gone the rounds detection, and it is the necessary instrument of induction type digital water level sensor.Concrete structure is divided into the two large divisions, first is an external structure, mainly by (narrating technical characterictic of the present invention) shell 1, front panel 2, light beam water level below in conjunction with accompanying drawing show 3, digital water level shows 4,5,5 of digital display options buttons preset options button 6, power switch 7, four output indications 8, fault alarm indication 9, supply socket 10, power safety 11, sensor socket 12, four road output terminals 13, rear panels 14 constitute, its position is arranged routinely and is got final product, and can design with reference to accompanying drawing 3,4.
It is characterized in that the second most inner structure is made up of 7 parts, 1, power unit, by 12V～36V adjustable stabilized voltage supply ,+6V ,+5V ,-5V and reference voltage source, totally 5 precision voltage sources that consist of sensor and each position power supply of instrument.2, input circuit part: form digital input circuit by filtering wave by prolonging time circuit and anti-jamming circuit, undesired signal and ripples artery are rushed in capable shaping handle, finish the work that comparison, discriminating, sorting detect various water level signal; 3, digital display portion, by the A-D D/A converting circuit analog signal conversion is become to give after the digital signal decoding scheme, is then driven quick collection, storage that liquid crystal display shows Exact Number water level signal, signal, finished by micro computer by display circuit.4, the light beam display part, formed relatively by 12 grades of anti-phase comparers and to have amplified and ladder is provided with circuit, from signal, select 12 different signals of grade and drive 12 grades of light beams, according to the luminous successively demonstration water level of SEA LEVEL VARIATION; 5, preset part: form by 5 road preset devices and comparison amplifying circuit.6, programming partly, selection circuit and programmed circuit are formed by sampling.7, control section, select circuit, gauge tap trigger circuit, control display circuit etc. to form by control sample circuit and control.It is by 5 tunnel control signals that sampling and selection circuit provide 4 tunnel output switches to be carried out programming Control, are equipped with warning out of control and sensor fault warning system, concrete circuit link by shown in accompanying drawing 1 and the accompanying drawing 2 simultaneously by user view.Description of drawings; Fig. 1: programmable water level measuring and controlling instrument theory diagram Fig. 2: programmable water level measuring and controlling instrument circuit diagram Fig. 3: programmable water level measuring and controlling instrument shell back view Fig. 4: programmable water level measuring and controlling instrument outer casing frontispiece figure number in the figure is: 1, shell 2, front panel 3, the light beam water level shows 4, digital water level shows 5, digital display options button 6,5 are preset options button 7, power switch 8, four output indications 9, report to the police and indicate 10, supply socket 11, power safety 12, sensor socket 13, four road output terminals 14, the main application and the advantage of rear panel invention
1, purposes: be used for the water robotization control of industrial and mining enterprises.Be used for river, reservoir, head-tank, water tower, the water of drainage facilities such as underground tank, channel, urban sewage, pipe network is automatically-monitored.
2, advantage: a, measuring accuracy height, error is little, and is reliable and stable.
B, strong anti-interference performance, the interference that can resist highfield, high-intensity magnetic field.
C, multi-level procedure control.Fault, automatic warning out of control.
D, serial ports is arranged, can accept the data call of network at any time.Eight, invention accompanying drawing: in addition attached nine, most preferred embodiment: draw yellow engineering water level measuring and controlling.
Programmable water level Monitoring and Controlling instrument external form of the present invention is 280 * 300 * 200 millimeters square instruments.Internal circuit is formed by seven ones:
1, power unit: by the adjustable sensor excitation power supply of 12-36V ,+6V ,+5V ,-5V and reference voltage source, totally 5 groups of power supplys are formed.
2, input circuit part: form by filtering wave by prolonging time circuit and anti-jamming circuit.
3, digital display portion: form by A-D D/A converting circuit, digital decoder and digital display driving circuit etc.
4, light beam display part: by ladder circuit, comparison amplifying circuit and light are set and show driving circuit etc. and form.
5, preset part: form by 5 road preset devices and prewired circuit.
6, programming part: select circuit and programmed circuit to form by sampling.
7, control section: form by control sample circuit, gauge tap trigger circuit, control power amplifier, control display circuit etc.
1, major function:
A, liquid crystal digital water level show: 0-5 rice, display precision are millimeter.
B, light beam water level show: 0-5 rice, 12 grades
C, five preset water level control system are arranged, water level bound, warning and other reference mark can be set arbitrarily in 0-5 rice.
D, four tunnel output controls are arranged, can work out the automatic control program of single-stage and multi stage pumping station by user view.
E, warning: out-of-limit or sensor, signal wire break down in water level bound scope, can both report to the police automatically.
F, standby functions: water level gauge record on duty, water level inquiry, computing machine communication interface.Can be provided with according to user's needs.
2, performance and technical indicator:
Performance: this display is highly sensitive, and antijamming capability is strong, can resist the interference of strong electromagnetic wave.
Technical indicator:
Consumed power :≤15W
Power supply: AC 220V～50HZ
Measurement range: 0-5V 0-5 rice
Discrimination degree:＜10 millivolts
Output control: four road 10A 380V
Instruments weight:＜5Kg
Environment for use temperature :-20 ℃～+ 50 ℃
Instrument external form: 30 centimetres of 28 cm x, 20 cm x
Claims (1)
1, a kind of according to the theoretical and design of modern network, to the control programmable water level measuring and controlling instrument that the water level signal of distinguishing each sensor is gone the rounds detection, it is the necessary instrument of induction type digital water level sensor, its concrete structure is divided into the two large divisions, first is an external structure, mainly by shell (1), front panel (2), the light beam water level shows (3), digital water level shows (4), digital display options button (5), 5 are preset options button (6), power switch (7), four output indications (8), fault alarm indication (9), supply socket (10), power safety (11), sensor socket (12), four road output terminals (13), rear panel (14) constitutes, and its position is arranged routinely and got final product.
It is characterized in that the second most inner structure is made up of seven parts, I, power unit, by 12V～36V adjustable stabilized voltage supply ,+6V ,+5V ,-5V and reference voltage source, totally 5 precision voltage sources that consist of sensor and each position power supply of instrument; II, input circuit part: form digital input circuit by filtering wave by prolonging time circuit and anti-jamming circuit, undesired signal and ripples artery are rushed in capable shaping handle, finish the work that comparison, discriminating, sorting detect various water level signal; III, digital display portion, analog signal conversion is become to give after the digital signal decoding scheme, then driven quick collection, storage that liquid crystal display shows Exact Number water level signal, signal, finished by micro computer by display circuit by the A-D D/A converting circuit; IV, light beam display part, formed by 12 grades of anti-phase comparers and relatively to have amplified and ladder is provided with circuit, from signal, selected 12 different signals of grade and drive 12 grades of light beams, according to the luminous successively demonstration water level of SEA LEVEL VARIATION; V, preset the part, form by 5 road preset devices and comparison amplifying circuit; VI, programming are partly, the selection circuit becomes with programmed circuit by sampling; VII, control section, select circuit, gauge tap trigger circuit, control display circuit etc. to form by control sample circuit and control, it is by sampling and selects 5 tunnel control signals that circuit provides that 4 tunnel output switches are carried out programming Control, are equipped with warning out of control and sensor fault warning system simultaneously by user view.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96111953 CN1045219C (en) | 1996-09-01 | 1996-09-01 | Programmable water level measuring and controlling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96111953 CN1045219C (en) | 1996-09-01 | 1996-09-01 | Programmable water level measuring and controlling instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1156245A CN1156245A (en) | 1997-08-06 |
| CN1045219C true CN1045219C (en) | 1999-09-22 |
Family
ID=5121332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96111953 Expired - Fee Related CN1045219C (en) | 1996-09-01 | 1996-09-01 | Programmable water level measuring and controlling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1045219C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8936444B2 (en) * | 2007-12-07 | 2015-01-20 | Pentair Flow Technologies, Llc | Capacitive liquid level sensor |
| CN103258406B (en) * | 2013-05-17 | 2015-07-01 | 重庆和航科技股份有限公司 | Fire pool or water tank water-level abnormality alarming method and system |
| CN104316133A (en) * | 2014-11-06 | 2015-01-28 | 江苏华豪航海电器有限公司 | Liquid level measurement device of ship liquid cargo cabin |
| CN104655237A (en) * | 2015-02-06 | 2015-05-27 | 太仓天衡电子科技有限公司 | High-efficiency digital liquid level detector and working method thereof |
| CN109634314A (en) * | 2019-01-11 | 2019-04-16 | 中铁隧道集团二处有限公司 | Intelligent water level measure and control device |
-
1996
- 1996-09-01 CN CN 96111953 patent/CN1045219C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1156245A (en) | 1997-08-06 |
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