CN101839750A - Numerically controlled water level - Google Patents
Numerically controlled water level Download PDFInfo
- Publication number
- CN101839750A CN101839750A CN 201010145241 CN201010145241A CN101839750A CN 101839750 A CN101839750 A CN 101839750A CN 201010145241 CN201010145241 CN 201010145241 CN 201010145241 A CN201010145241 A CN 201010145241A CN 101839750 A CN101839750 A CN 101839750A
- Authority
- CN
- China
- Prior art keywords
- water level
- photoelectric sensor
- numerically controlled
- chip microcomputer
- scm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a numerically controlled water level, which comprises a buoy, a photoelectric sensor, a singlechip system, a stepping motor, and a roller. The buoy is immersed in the tested water body; the photoelectric sensor is connected with the upper end of the buoy and is used for detecting the lifting information of the buoy along the water level of the tested water body; the singlechip system is connected with the photoelectric sensor and is used for receiving the water level lifting information detected by the photoelectric sensor and processing and displaying the information; the stepping motor is connected with the singlechip system and the singlechip system controls the motion of the stepping motor according to the water level lifting information; the roller is connected with the stepping motor and rotates correspondingly along the motion of the stepping motor; a traction rope is wound on the roller; the lower end of the traction rope is connected with the photoelectric sensor; and the rotation of the roller lifts the photoelectric sensor in real time through the traction rope. The buoy goes up and down along the tested water level; the data logic work state is indicated by the photoelectric sensor; and the singlechip computes and displays the water level. The numerically controlled water level has the advantages of convenient use, resolution ratio of 0.1 percent, accuracy error of +/-0.1 percent, simple overall mechanism and low cost.
Description
Technical field
The invention belongs to the level gauging field, relate to a kind of numerically controlled water level, be used for river, river, lake, hydrology level measuring and hydraulic model test and measure water level, also can be used for the measurement of general liquid level.
Background technology
Present domestic limnimeter (also claiming water level gauge) has a variety of, and existing limnimeter mostly is " servomotor is used in the control of analog closed-loop system ", belongs to the mechanical transmission structure formula, its structure more complicated, the precision of machining, the directly accuracy of influence measurement.In the existing limnimeter, common resolution is the highest to be 0.1mm.In addition, the complexity of structure also causes production cost to improve.The more important thing is that the reliability of limnimeter work is subjected to the influence of mechanical type digital disk very big, itself and line output also cause the complexity of wiring to data acquisition and control automatization, and its measuring accuracy is low, and the cost height influences scientific research and testing and testing.
Summary of the invention
(1) technical matters that will solve
Break away from the above-mentioned defective of traditional analog measurement, driven by servomotor, closed-loop control, mechanical transmission structure formula limnimeter, the precision and the resolution of the instrument level gauging of flooding, whole mechanism oversimplifies, and reduces cost.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of numerically controlled water level, it is characterized in that, comprising:
Floating drum immerses in the tested water body;
Photoelectric sensor links to each other with described floating drum upper end, is used to survey the lifting information of floating drum with the tested water body water level;
Single Chip Microcomputer (SCM) system links to each other with described photoelectric sensor, and the fluctuation in stage information that the reception photoelectric sensor is surveyed is gone forward side by side, and line data is handled and demonstration;
Stepper motor connects Single Chip Microcomputer (SCM) system by the step motor drive cable, handles the fluctuation in stage information Control stepper motor motion that obtains by Single Chip Microcomputer (SCM) system according to it;
Cylinder links to each other with described stepper motor, drives cylinder by the motion of stepper motor and correspondingly rotates; Solderless wrapped connection has drag rope on the described cylinder, and described drag rope lower end connects described photoelectric sensor, and the rotation by cylinder drives the photoelectric sensor lifting by drag rope, described floating drum by water level buoyancy with the real-time lifting of water level;
Described Single Chip Microcomputer (SCM) system according to its data message that handle to obtain to described cylinder, stepper motor, photoelectric sensor and the control operation of floating drum combine digital.
Wherein, be provided with the shading baffle plate between described photoelectric sensor and the described floating drum.
Wherein, described Single Chip Microcomputer (SCM) system is provided with digital display screen, is used for dynamically showing the tested water body water level information.
Wherein, be provided with a pair of infrared light emission pipe and a pair of infrared ray light-receiving tube in the described photoelectric sensor, described light-receiving tube and floating drum drive shading baffle plate following water-level lifting move about and block the light that described luminotron sends, and generate the analog/digital logical conversion.
Wherein, described infrared light emission pipe, infrared ray light-receiving tube are connected in Single Chip Microcomputer (SCM) system by cable, by cable the analog/digital logical signal that light-receiving tube generates are sent to Single Chip Microcomputer (SCM) system.
Wherein, described Single Chip Microcomputer (SCM) system is provided with the normal data output interface, can external exterior storage or display device, by described output interface storage of level measuring process and real time water level data are sent to exterior storage or display device.
Wherein, the size of the perimeter dimension of described cylinder is carried out corresponding setting according to the size of water level range, to adapt to different water level ranges.
Wherein, the gap is slidingly connected between described photoelectric sensor and the described shading baffle plate.
Wherein, the centre distance between the spacing between described two infrared light emission pipes, two the infrared ray light-receiving tubes is carried out corresponding setting according to the size of water level range, to adapt to different water level ranges.
Wherein, described digital display screen be set to have thousand, hundred, ten, the LED digital display screen of individual four decimal system reversible countings.
(3) beneficial effect
Numerically controlled water level of the present invention drives floating drum by the Single-chip Controlling stepper motor with centimetre unit and follows fluctuation in stage, by photoelectric sensor designation data logic working state, single-chip microcomputer computing, demonstration water level amount, and with standard data interface system connection external unit, easy to use, resolution reaches 1 ‰, and trueness error can reach ± and 1 ‰, whole mechanism is simple, and cost is low.
Description of drawings
Fig. 1 is the structural representation of numerically controlled water level of the present invention;
Fig. 2 is the structural representation of photoelectric sensor in the numerically controlled water level of the present invention;
Fig. 3 is the logic state synoptic diagram that numerically controlled water level light-receiving tube of the present invention produces.
Wherein: 1: stepper motor; 2: cylinder; 3: drag rope; 4: photoelectric sensor; 4-1,4-3: infrared light emission pipe; 4-2,4-4: infrared ray light-receiving tube; 5: floating drum; 5-1: shading baffle plate; 6: Single Chip Microcomputer (SCM) system; 7: the step motor drive cable; 8: cable.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Numerically controlled water level of the present invention is followed water level by floating drum, photoelectric sensor and is begun to carry out analog/digital conversion, total system adopts digital control afterwards, high according to its bearing accuracy of stepper motor and degree of stability, assurance reaches 1 ‰ resolution, can be provided with flexibly and range extension by designed roller girth (diameter), as range is 1 meter, 1 millimeter of resolution; 5 millimeters of 5 meters resolution of range; 10 meters of ranges or greater than 10 meters, resolution and error can be accurately, stable to be controlled at 1 centimetre be resolution 1 ‰.
The invention belongs to digital controlly, adopt photoelectric sensor 4, Single Chip Microcomputer (SCM) system 6, stepper motor 1, data-driven cylinder 2 and floating drum 5 to follow fluctuation in stage fast.Core technology of the present invention is to use stepper motor 1, photoelectric sensor 4, Single Chip Microcomputer (SCM) system 6, see shown in Figure 1, stepper motor 1 coaxial installation cylinder 2, drag rope 3 solderless wrapped connections are on cylinder 2, traction photoelectric sensor 4, photoelectric sensor 4 connects floating drum 5, stepper motor step angle=7.5 degree, i.e. 360 ÷ 7.5=48 step; In the present embodiment, cylinder external diameter girth=48 centimetres, diameter=48 ÷ π=15.28-drag rope diameter, the every stepping of stepper motor (step moves back) step drag rope 3 drives photoelectric sensor 4 rising (declines) 1 centimetre, photoelectric sensor 4 is provided with two pairs of infrared light emissions, managed by light LED, 4-1 and 4-3 are the infrared light emission pipe, and 4-2 and 4-4 are the infrared ray light-receiving tube, are connected in Single Chip Microcomputer (SCM) system 6 via signal cable 8; Two pairs of LED tube center distancees are provided with a shading baffle plate 5-1 from being 2 centimetres in the middle of the sensor, the shading baffle plate connects floating drum 5, has the gap between floating drum 5 and the shading baffle plate 5-1, belong to so-called the slip and are flexible coupling, and thus, floating drum is subjected to the water buoyancy to follow fluctuation in stage; Sensor is subjected to the stepper motor logic control, with buoy lifting.Shading baffle plate upper edge belongs to equilibrium state in the middle of being in two pairs of LED light, as shown in Figure 2.The two pairs of LED tube center distancees are to be applicable to that range is 10 meters or when bigger from being 2 centimetres, 1 centimetre of promptly every stepping (step moves back), and resolution promptly reaches 1 centimetre; If range be 1 meter or below, resolution is 1 millimeter, two pairs of LED tube center distancees are 2 millimeters from relative set.
Infraluminescence pipe 4-1,4-3 and light-receiving tube 4-2,4-4 drive shading baffle plate 5-1 by floating drum 5 and follow fluctuation in stage and move about and block and throw infrared ray formation logic digital signal, three kinds of states as shown in Figure 3, a: the shading baffle plate is in 4-1 projection 4-2, block 4-3 light, logic state is: 01; B: rise with water level, the shading baffle plate is in and blocks 4-1,4-3, the dull thread projection, and logic state is: 11; C: as decline of water table, the shading baffle plate withdraws from light, and 4-2,4-4 are all throwed, and logic state is: 00.Single-chip Controlling stepper motor logical one 0 is the balance stationary state.Logic state 11 rises for water level, and the stepper motor forward step, further digital display synchronization added 1, makes 4-2 throw light again, and stepper motor is in the balance stationary state again; As decline of water table, baffle plate withdraws from fully and blocks, and 4-2,4-4 are all throwed; Logic state is 00 demonstration decline of water tables, stepper motor oppositely goes on foot backward, the numeral display synchronization subtracts 1, photoelectric sensor 4 descends a step, 4-3 light is blocked, forms logical zero 1 balance stationary state, if water level continues fast rise, the then continuous stepping of stepper motor, numeral demonstration are risen with water level and are accurately added up synchronously; If water level descends continuously, then stepper motor goes on foot continuously and moves back, and digital display synchronization subtracts computing continuously, photoelectric sensor is descended continuously reach logical zero 1 until photoelectricity, and balance is static.That is, finish the mould/number (A/D) of fluctuation in stage information by photoelectric sensor 4 and change, information is passed to Single Chip Microcomputer (SCM) system 6, carry out digital control operation by 6 pairs of whole numerically controlled water levels of Single Chip Microcomputer (SCM) system afterwards.
In the present embodiment, top luminotron light direct projection light-receiving tube, light-receiving tube current saturation signal import single-chip microcomputer into and think the electronegative potential logical zero, following light is blocked by baffle plate, the light-receiving tube current cut-off, and duty is a logical one, combinational logic=0 1, this moment, stepper motor was in static positioning states; If driving baffle plate, water level rising floating drum rises, baffle plate blocks top light, see b logic state among Fig. 3, make its by saturated for ending logic=0 0, the Micro Controller Unit (MCU) driving stepper motor drives cylinder and goes on foot left further, the single-chip microcomputer digital synchronous shows+1, and floating drum and sensor rise 1 centimetre, see a logic state among Fig. 3, top LED light recovers original state, and stepper motor remains static again; C logic state among Fig. 3 occurs if decline of water table, floating drum drive sensor bezel decline, two LED light all are blocked, logic=0 0, this moment, the Micro Controller Unit (MCU) driving sensor descended a step, and the single-chip microcomputer digital synchronous shows-1, caused that the c logic state is in a logic state among Fig. 3 among Fig. 3; If continuous fast rise of water level or decline, single-chip microcomputer is the continuous stepping of drive stepping motor, step to move back operation, digital display carries out the data computing that adds deduct accurately synchronously, accurately follow water level fast always, single-chip microcomputer accurately shows the real-time quantity of water level fast, and by the normal data RS-232 interface internal storage data is transferred to computer.Digital display screen in the present embodiment is set to have thousand, hundred, ten, the LED digital display screen of individual four decimal system reversible countings, show synchronously, record stepper motor stepping (step moves back) step number, promptly synchronous recording, show tested water level numerical value.
In this numerically controlled water level device, described Single Chip Microcomputer (SCM) system is provided with the normal data output interface, can external exterior storage or display device, by described output interface storage of level measuring process and real time water level data are sent to exterior storage or display device.In same waters to be measured, can use a plurality of limnimeters, accurate with what realize measuring, numerically controlled water level can pass through wired or wireless device, level measuring process and result are sent to hydrology level measuring analytical equipment, realize the unmanned of whole limnimeter, automatically work.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (10)
1. a numerically controlled water level is characterized in that, comprising:
Floating drum (5) immerses in the tested water body;
Photoelectric sensor (4) links to each other with described floating drum (5) upper end, is used to survey the lifting information of floating drum (5) with the tested water body water level;
Single Chip Microcomputer (SCM) system (6) links to each other with described photoelectric sensor (4), and the fluctuation in stage information that reception photoelectric sensor (4) is surveyed is gone forward side by side, and line data is handled and demonstration;
Stepper motor (1) connects Single Chip Microcomputer (SCM) system (6) by step motor drive cable (7), handles fluctuation in stage information Control stepper motor (1) motion that obtains by Single Chip Microcomputer (SCM) system (6) according to it;
Cylinder (2) links to each other with described stepper motor (1), drives cylinder (2) by the motion of stepper motor (1) and correspondingly rotates; Described cylinder (2) is gone up solderless wrapped connection drag rope (3), described drag rope (3) lower end connects described photoelectric sensor (4), rotation by cylinder (2) drives photoelectric sensor (4) lifting by drag rope (3), described floating drum (5) by water level buoyancy with the real-time lifting of water level;
Described Single Chip Microcomputer (SCM) system (6) according to its data message that handle to obtain to described cylinder (2), stepper motor (1), photoelectric sensor (4) and floating drum (5) combine digital control operation.
2. numerically controlled water level as claimed in claim 1 is characterized in that, is provided with shading baffle plate (5-1) between described photoelectric sensor (4) and the described floating drum (5).
3. numerically controlled water level as claimed in claim 1 is characterized in that, described Single Chip Microcomputer (SCM) system (6) is provided with digital display screen, is used for dynamically showing the tested water body water level information.
4. numerically controlled water level as claimed in claim 1, it is characterized in that, be provided with a pair of infrared light emission pipe (4-1,4-3) and a pair of infrared ray light-receiving tube (4-2,4-4) in the described photoelectric sensor (4), described light-receiving tube (4-2,4-4) moves about with floating drum (5) drive shading baffle plate (5-1) following water-level lifting and blocks the light that described luminotron sends, and generates the analog/digital logical conversion.
5. numerically controlled water level as claimed in claim 3, it is characterized in that, described infrared light emission pipe (4-1,4-3), infrared ray light-receiving tube (4-2,4-4) are connected in Single Chip Microcomputer (SCM) system (6) by cable (8), by cable (8) the analog/digital logical signal that light-receiving tube (4-2,4-4) generates are sent to Single Chip Microcomputer (SCM) system (6).
6. numerically controlled water level as claimed in claim 1, it is characterized in that, described Single Chip Microcomputer (SCM) system (6) is provided with the normal data output interface, can external exterior storage or display device, by described output interface storage of level measuring process and real time water level data are sent to exterior storage or display device.
7. numerically controlled water level as claimed in claim 1 is characterized in that, the size of the perimeter dimension of described cylinder (2) is carried out corresponding setting according to the size of water level range, to adapt to different water level ranges.
8. numerically controlled water level as claimed in claim 2 is characterized in that, the gap is slidingly connected between described photoelectric sensor (4) and the described shading baffle plate (5-1).
9. as each described numerically controlled water level in claim 4 and 5, it is characterized in that, centre distance between spacing between described two infrared light emission pipes (4-1,4-3), two the infrared ray light-receiving tubes (4-2,4-4) is carried out corresponding setting according to the size of water level range, to adapt to different water level ranges.
10. numerically controlled water level as claimed in claim 3 is characterized in that, described digital display screen is set to have thousand, hundred, ten, the LED digital display screen of individual four decimal system reversible countings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010145241 CN101839750A (en) | 2010-04-09 | 2010-04-09 | Numerically controlled water level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010145241 CN101839750A (en) | 2010-04-09 | 2010-04-09 | Numerically controlled water level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101839750A true CN101839750A (en) | 2010-09-22 |
Family
ID=42743264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010145241 Pending CN101839750A (en) | 2010-04-09 | 2010-04-09 | Numerically controlled water level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101839750A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645280A (en) * | 2013-11-22 | 2014-03-19 | 哈尔滨东方报警设备开发有限公司 | Lifting-type gas detection detector |
| CN106441423A (en) * | 2016-08-31 | 2017-02-22 | 国网河南省电力公司南阳供电公司 | Online monitoring platform for underground cable channels of urban power grids |
| CN110686754A (en) * | 2019-10-18 | 2020-01-14 | 骆军辉 | Multi-point direct-measuring regulating material level meter for liquid level detection |
| CN112729475A (en) * | 2020-12-26 | 2021-04-30 | 钟星建设集团有限公司 | Fire water tank water level monitoring alarm device |
| CN112922585A (en) * | 2021-02-26 | 2021-06-08 | 华东交通大学理工学院 | Automatic monitoring method for liquid level height of drainage well in subway construction |
| CN114413866A (en) * | 2022-01-19 | 2022-04-29 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Surveying and mapping device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2159556Y (en) * | 1993-03-06 | 1994-03-23 | 卢剑超 | Infrared photoelectric digital level meter with alarm |
| CN2779356Y (en) * | 2004-12-24 | 2006-05-10 | 井冈山学院 | Liquid level monitoring and recording instrument |
| CN101241022A (en) * | 2007-02-06 | 2008-08-13 | 吴尚恩 | Photoelectric dobber tracking type liquid level monitoring device |
| CN101476915A (en) * | 2008-11-04 | 2009-07-08 | 水利部交通部电力工业部南京水利科学研究院 | Detection type water level measuring method and detection type water level meter |
-
2010
- 2010-04-09 CN CN 201010145241 patent/CN101839750A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2159556Y (en) * | 1993-03-06 | 1994-03-23 | 卢剑超 | Infrared photoelectric digital level meter with alarm |
| CN2779356Y (en) * | 2004-12-24 | 2006-05-10 | 井冈山学院 | Liquid level monitoring and recording instrument |
| CN101241022A (en) * | 2007-02-06 | 2008-08-13 | 吴尚恩 | Photoelectric dobber tracking type liquid level monitoring device |
| CN101476915A (en) * | 2008-11-04 | 2009-07-08 | 水利部交通部电力工业部南京水利科学研究院 | Detection type water level measuring method and detection type water level meter |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645280A (en) * | 2013-11-22 | 2014-03-19 | 哈尔滨东方报警设备开发有限公司 | Lifting-type gas detection detector |
| CN106441423A (en) * | 2016-08-31 | 2017-02-22 | 国网河南省电力公司南阳供电公司 | Online monitoring platform for underground cable channels of urban power grids |
| CN110686754A (en) * | 2019-10-18 | 2020-01-14 | 骆军辉 | Multi-point direct-measuring regulating material level meter for liquid level detection |
| CN110686754B (en) * | 2019-10-18 | 2020-11-20 | 葛安 | Multi-point direct-measuring regulating material level meter for liquid level detection |
| CN112729475A (en) * | 2020-12-26 | 2021-04-30 | 钟星建设集团有限公司 | Fire water tank water level monitoring alarm device |
| CN112729475B (en) * | 2020-12-26 | 2024-03-15 | 钟星建设集团有限公司 | Fire-fighting water tank water level monitoring alarm device |
| CN112922585A (en) * | 2021-02-26 | 2021-06-08 | 华东交通大学理工学院 | Automatic monitoring method for liquid level height of drainage well in subway construction |
| CN114413866A (en) * | 2022-01-19 | 2022-04-29 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Surveying and mapping device |
| CN114413866B (en) * | 2022-01-19 | 2024-03-12 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Surveying and mapping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101839750A (en) | Numerically controlled water level | |
| CN103063417B (en) | Spring automatic tester for performance | |
| CN206905848U (en) | Tracking mode integration water-level remote measuring instrument | |
| CN202974629U (en) | Precise spring leaf performance tester | |
| CN201867228U (en) | Float type weir measuring instrument | |
| CN201083513Y (en) | Deep water level high precision sensor device | |
| CN113819982B (en) | Continuous calibration and calibration device for high-precision intelligent liquid level meter | |
| CN101813793B (en) | Digital control type pluviometer | |
| CN102661775B (en) | Automatic water gage detector and application | |
| CN2890852Y (en) | Photoelectric water level meter | |
| CN201828314U (en) | Large measuring range high accuracy double cylinder groundwater level gauge | |
| CN101949672B (en) | Method and device for calibrating top plate dynamic apparatus | |
| CN201748941U (en) | Venturi automation water measuring device | |
| CN202092687U (en) | Rotameter and flow sensing system | |
| CN105737797B (en) | Vertical deformation detection method and device | |
| CN2650081Y (en) | Rope-reading water gauge | |
| CN209857921U (en) | Double-well tide gauge calibrating device | |
| CN202188851U (en) | Testing system for hydrometric cableway | |
| CN209621305U (en) | A kind of Photoelectric Detection automatic oil-measuring device | |
| CN208296852U (en) | A kind of calibrating installation of hydrostatic level | |
| CN2159018Y (en) | Float-grid type level gauge | |
| CN220819146U (en) | High-precision water level measuring device | |
| CN207540636U (en) | A kind of liquid level gauge filed detection system of high voltage direct current converter valve cooling system | |
| CN201974164U (en) | Large marine structure soft foundation weighing fulcrum displacement measurement device with high accuracy | |
| CN201732176U (en) | Numerical controlled rain gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100922 |