CN207894954U - A kind of water surface flow rate detection system under high water condition - Google Patents

A kind of water surface flow rate detection system under high water condition Download PDF

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Publication number
CN207894954U
CN207894954U CN201820088386.XU CN201820088386U CN207894954U CN 207894954 U CN207894954 U CN 207894954U CN 201820088386 U CN201820088386 U CN 201820088386U CN 207894954 U CN207894954 U CN 207894954U
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current meter
module
acquisition module
data acquisition
water surface
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CN201820088386.XU
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王剑平
王挥华
杨晓洪
张果
车国霖
欧阳鑫
王海云
张永华
李善超
李小彤
刘旭晗
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Kunming Huayu Automation Technology Co ltd
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Kunming University of Science and Technology
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Abstract

The utility model is related to the water surface flow rate detection systems under a kind of high water condition, belong to hydrographic data fields of measurement.The utility model includes Big Dipper high-precision difference positioning device, laser sensor, radar current meter, wireless data transfer module, host computer, servo position module, data acquisition module;Big Dipper high-precision difference positioning device, radar current meter, laser sensor, servo position module is installed together to form sensor device, the utility model finds out the inclination angle that radar current meter should meet when the electromagnetic wave that radar current meter is sent out is mapped to specified section according to the accurate distance of radar current meter to the water surface and the horizontal distance of sensor device to section, effectively overcome measurement error caused by the shake of cableway, realize the accurate flow measurement to specifying section under high water condition, it avoids fish lead under high water condition and enters current meter damage caused by water flow measurement, hydrology flow measurement is implemented under the high water condition of effective guarantee.

Description

A kind of water surface flow rate detection system under high water condition
Technical field
The utility model is related to the water surface flow rate detection systems under a kind of high water condition, belong to hydrographic data fields of measurement.
Background technology
China's national territorial area is vast, with a varied topography, causes China river numerous, in addition climate change difference, results in me State's hydrologic regime complexity is various, carries out hydrographic data collection processing work and is of great significance to producing, taking precautions against natural calamities.Traditional flow measurement Method is that the position of sensor device is determined according to lowered position on hawser, and inaccurate, hand external environment influences big, error Greatly;The range measurement of traditional method sensor device to the water surface is inaccurate;Traditional fish lead flow measurement water surface current velocity testing method Can be more because of flood period floater, the use of current meter can usually be impacted, or even fish lead occur and be difficult to carry flow velocity Instrument enters situations such as water, current meter damage, and also hardly possible descends water to the same reasons of other such as ADCP.
Invention content
The technical problems to be solved in the utility model is:The utility model provides the water surface flow velocity inspection under a kind of high water condition Examining system, for solving existing for the water surface current velocity testing method under the high water condition of tradition, sensor device positioning is inaccurate, passes It is when the accurate distance of sensor arrangement to the water surface is not allowed, the electromagnetic wave that radar current meter is launched is mapped on specified section and horizontal Angle between face be unable to on-line measurement, cannot correct radar current meter inclination angle make its electromagnetic wave be mapped to specified section it is first-class lack Point.
The technical solution adopted in the utility model is:Water surface flow rate detection system under a kind of high water condition, including the Big Dipper It is high-precision difference positioning device 1, laser sensor 2, servo position module 3, radar current meter 4, data acquisition module 5, wireless Data transmission module 6, host computer 7;1 output end of Big Dipper high-precision difference positioning device and 5 input terminal of data acquisition module It is connected;2 output end of laser sensor is connected with 5 input terminal of data acquisition module;5 output end of data acquisition module and servo-positioning 3 input terminal of module is connected;3 output end of servo position module is connected with 4 input terminal of radar current meter;4 output end of radar current meter It is connected with 5 input terminal of data acquisition module;5 output end of data acquisition module is connected with 6 input terminal of wireless data transfer module, nothing 6 output end of line data transmission module is connected with 7 input terminal of host computer, the Big Dipper high-precision difference positioning device 1, thunder It is installed together up to current meter 4, laser sensor 2, servo position module 3 and to form sensor device.
The data acquisition module 5 includes CPU, memory;Data acquisition module 5 is for determining Big Dipper high-precision difference Signal acquired in position device 1, laser sensor 2 is handled, and is then sent out control signal and is adjusted thunder to servo position module 3 Up to the inclination angle of current meter 4 to specified angle, radar current meter 4 measures the water surface flow speed data of specified section, and by the letter of acquisition Breath is sent to data acquisition module 5, and the information storage of reception in internal memory, and is passed through nothing by data acquisition module 5 Line data transmission module 6 sends signal to host computer 7.
The sensor device is installed on cableway triangle pulley support arm.
The utility model has the beneficial effects that:
1, sensor device need not be positioned according to hawser.Traditional flow measurement method is according to lowered position on hawser Determine the position of sensor device, and the method be then by Big Dipper high-precision difference positioning device come to sensor device into Row positioning, accuracy is high, is affected by the external environment small, error is small;
2, with laser sensor come the accurate distance of measurement sensor device to the water surface.Traditional method fish lead arrives the water surface Range measurement is inaccurate;
3, the precise position data of sensor device can be obtained.It is obtained and is sensed by Big Dipper high-precision difference positioning device Sensor device acquired in the geographic position data of device device, laser sensor is to the accurate distance of the water surface, specified section The resolving of the accurate altitude data of the water surface in position data, data acquisition module, screening, fusion obtain sensor device Accurate geographic position data.Be conducive to sensor device in section designated position positioning measurement;
4, radar current meter is measured using suspension type, and traditional fish lead flow measurement water surface current velocity testing method can be because of flood period water Face floating material is more, can usually be impacted to the use of current meter, or even fish lead occurs and be difficult to carry current meter to enter water, current meter Situations such as damage, also hardly possible descends water to the same reasons of other such as ADCP.Radar current meter uses Radar Doppler effect, is a kind of remote Distance, contactless new instrument, to regimen complexity, flow is anxious, silt content is big, has the measuring environment of a large amount of floating materials to have in water Have unique advantage, have speed it is fast, it is safe, easy to use, not by the external natural cause influence characteristic such as silt and floating material, It is low in energy consumption, it can will be higher than traditional current meter with long-term stable work, measurement range and measurement accuracy;Although traditional survey method Also suspension type measures, conventional radar flow measurement can cause measurement error because of reasons such as cableway shakes.Radar current meter is to water The absolute distance measurement in face is inaccurate, and the inclination angle of radar current meter is unable to adjust, and the electromagnetic wave that radar current meter is sent out is difficult It navigates on specified section point, the utility model effectively overcomes the problems, such as this, realizes that measuring point is accurately positioned;
5, the utility model is simple in structure, easy for installation, easy to maintain, and complex water areas environmental suitability is stronger.Accuracy Height, power consumption is relatively low, low cost, highly practical.
Description of the drawings
Fig. 1 is the hardware block diagram of the utility model;
Fig. 2 is radar current-metre measurement schematic diagram;
Fig. 3 is that servo position module adjusts radar current meter inclination angle schematic diagram;
Fig. 4 is the position relationship schematic diagram of A, B point and specified section in Fig. 3;
Fig. 5 is that sensor device position coordinates are resolved, screening, merged and for adjusting radar current meter inclination angle flow chart;
Fig. 6 is sensor device scheme of installation.
In figure respectively marked as:Big Dipper high-precision difference positioning device -1, laser sensor -2, servo position module -3, thunder Up to current meter -4, data acquisition module -5, wireless data transfer module -6, host computer -7.
Specific implementation mode
Utility model will be further explained below with reference to the attached drawings and specific embodiments.
Embodiment 1:As shown in figures 1 to 6, the water surface flow rate detection system under a kind of high water condition, including Big Dipper high-precision is poor Divide positioning device 1, laser sensor 2, servo position module 3, radar current meter 4, data acquisition module 5, wireless data transmission Module 6, host computer 7;1 output end of Big Dipper high-precision difference positioning device is connected with 5 input terminal of data acquisition module;Laser 2 output end of sensor is connected with 5 input terminal of data acquisition module;Data acquisition module)Output end is inputted with servo position module 3 End is connected;3 output end of servo position module is connected with 4 input terminal of radar current meter;4 output end of radar current meter is acquired with data 5 input terminal of module is connected;5 output end of data acquisition module is connected with 6 input terminal of wireless data transfer module, wireless data transmission 6 output end of module is connected with 7 input terminal of host computer, the Big Dipper high-precision difference positioning device 1, radar current meter 4, Laser sensor 2, servo position module 3 are installed together to form sensor device.
The data acquisition module 5 includes CPU, memory;Data acquisition module 5 is for determining Big Dipper high-precision difference Signal acquired in position device 1, laser sensor 2 is handled, and is then sent out control signal and is adjusted thunder to servo position module 3 Up to the inclination angle of current meter 4 to specified angle, radar current meter 4 measures the water surface flow speed data of specified section, and by the letter of acquisition Breath is sent to data acquisition module 5, and the information storage of reception in internal memory, and is passed through nothing by data acquisition module 5 Line data transmission module 6 sends signal to host computer 7.
The sensor device is installed on cableway triangle pulley support arm.
A kind of detection method of water surface flow rate detection system under high water condition, includes the following steps:
After step1, sensor device reach specified position, circuit is connected, data acquisition module 5 is started to work;
Step2, Big Dipper high-precision difference positioning device 1, laser sensor 2 start simultaneously at work, Big Dipper high-precision difference Positioning device 1 acquires the geographic position data of sensor device, and laser sensor 2 acquires sensor device to the perfect number of the water surface According to being stored in after encapsulating data in the memory of data acquisition module 5;
Step3, data acquisition module 5 are the sensor device geography position acquired in Big Dipper high-precision difference positioning device 1 The sensor device acquired in data, laser sensor 2 is set to the water in the accurate distance data of the water surface, data acquisition module 5 The accurate elevation data in face obtains the accurate geographic position data of current sensor device, so by resolving, screening, blending algorithm The inclination angle for obtaining radar current meter 4 afterwards adjusts the inclination angle of radar current meter 4 finally by servo position module 3, makes its electromagnetic wave It is emitted on specified section, then radar current meter 4 is started to work, after the flow speed data for measuring specified section, by flow velocity number According to, the angle data envelope between the range data of the water surface to sensor device, radar current meter 4 electromagnetic wave and the water surface that are sent out Data packet is dressed up, is stored in the memory inside data acquisition module 5;
Step4, by 6 data transmissions being stored in memory to host computer 7 of wireless data transfer module.
In the step step3, the exact position resolving of sensor device, screening, fusion steps are as follows:
Step3.1, Big Dipper high-precision difference positioning device 1 obtain the geographic position data of sensor device, laser sensing Device 2 obtains sensor device to the accurate distance data of the water surface, and transmits data to data acquisition module 5;
Step3.2, data acquisition module resolve the signal acquired in Big Dipper high-precision difference positioning device 1, choosing Take X, Y coordinates;
Step3.3, according to the accurate height above sea level of the known water surface, the sensor device surveyed in conjunction with laser sensor 2 to the water surface Accurate distance, calculate the accurate Z coordinate of sensor device;
Step3.4, data acquisition module calculate X, Y, Z coordinate, obtain the accurate geographic position of sensor device Data.
In the step step3, the inclination angle process of solution of radar current meter 4 is as follows:
The accurate geographic position data of Step3.5, known sensor arrangement, and the position data of known river cross-section are led to Cross data acquisition module(5)May know that after processing sensor device to specified section horizontal distance L,
Known sensor arrangement to specified section horizontal distance L, and know sensor device to the water surface vertical range H, Sensor device is again perpendicular to the water surface simultaneously, according to the trigonometric function law of tangents:
Acquiring θ is:
θ is radar current meter(4)The angle when electromagnetic wave sent out is mapped on specified section between the water surface;
Step3.6, according to angle sum of a triangle theorem:
Acquire radar current meter(4)The angle of inclination beta that the electromagnetic wave sent out should meet when being mapped on specified section:
In the step step3, steps are as follows at the inclination angle of the adjusting radar of servo position module 3 current meter 4:
Step3.7, when the actual angles β be equal to should meet the angles β when, the electromagnetic wave that radar current meter 4 is sent out is mapped to On specified section;
Step3.8, when the actual angles β be more than should meet the angles β when, the electromagnetic wave that radar current meter 4 is sent out is mapped to Before specified section when A points, data acquisition module 5 issues instructions to servo position module 3, and β is turned in the rotation of servo position module 3 down Angle makes the actual angles β be equal to the angles β that should meet, to make the electromagnetic wave that radar current meter 4 is sent out be mapped to specified section On;
Step3.9, when the actual angles β be less than should meet the angles β when, the electromagnetic wave that radar current meter 4 is sent out is mapped to After specified section when B points, data acquisition module 5 issues instructions to servo position module 3, and the rotation of servo position module 3 tunes up β Angle makes the actual angles β be equal to the angles β that should meet, to make the electromagnetic wave that radar current meter 4 is sent out be mapped to specified section On.
The operation principle of the utility model is:
The geographic position data of sensor device is determined by Big Dipper high-precision difference positioning device 1;Pass through laser sensing Device 2 accurately measures the range data from sensor device to the water surface;By data acquisition module, Big Dipper high-precision difference is positioned The accurate distance data acquired in geographic position data and laser sensor 2 acquired in device 1, the water in data acquisition module The accurate elevation data in face obtains the accurate geographic position data of current sensor device by resolving, screening, blending algorithm. Know the accurate geographic position data of sensor device, and the position data of section is specified in known river, passes through data acquisition module 5 It may know that sensor device to the horizontal distance for specifying section after processing.Known sensor arrangement to specified section it is horizontal away from From, and known sensor arrangement is mapped to the accurate distance data of the water surface to obtain the electromagnetic wave that radar current meter 4 is sent out The angle that should meet between horizontal plane when on specified section;The inclination angle of radar current meter is adjusted by servo position module 3, Its electromagnetic wave sent out is set to be mapped on specified section;Current flow speed data is acquired by radar current meter 4;By flow velocity number According to, the angle data envelope between the range data of the water surface to sensor device, radar current meter 4 electromagnetic wave and the water surface that are sent out Data packet is dressed up, is stored in the memory inside data acquisition module 5;By wireless data transfer module 6 by data transmission To host computer 7, the display storage water surface flow speed data of host computer 7;
As shown in Figure 1, the water surface flow rate detection system under a kind of high water condition, by Big Dipper high-precision difference positioning device 1, Laser sensor 2, servo position module 3, radar current meter 4, data acquisition module 5, wireless data transfer module 6, upper meter Calculation machine 7 forms.Big Dipper high-precision difference positioning device 1 is responsible for the geographic position data of acquisition sensor device.Radar current meter 4 It is responsible for acquisition water surface flow speed data.Laser sensor 2 is responsible for acquisition sensor device to the vertical range of the water surface.Data acquisition module Block 5 is responsible for resolving collected position data, range data and water surface flow speed data, screening, merging, storing.Wirelessly Data transmission module 6 is responsible for data transmission to host computer 7.Servo position module 3 is responsible for adjusting inclining for radar current meter 4 Angle.The display of host computer 7, storage water surface flow speed data.
Fig. 2 is the operating diagram of radar current meter.
Fig. 3 is that servo position module 3 adjusts 4 inclination angle schematic diagram of radar current meter, should be met when the actual angles β are equal to When the angles β, the electromagnetic wave that radar current meter 4 is sent out is mapped on specified section;When the electromagnetic wave that radar current meter 4 is sent out is mapped to When A sections, the electromagnetic wave that radar current meter 4 is sent out is mapped to before specified section, and data acquisition module 5 issues instructions to servo Locating module 3, the rotation of servo position module 3 turn the angles β down, so that the actual angles β is equal to the angles β that should meet, to make radar stream The electromagnetic wave that fast instrument 4 is sent out is mapped on specified section;When the electromagnetic wave that radar current meter 4 is sent out is mapped to B sections, thunder The electromagnetic wave sent out up to current meter 4 is mapped to after specified section, and data acquisition module 5 issues instructions to servo position module 3, The rotation of servo position module 3 tunes up the angles β, so that the actual angles β is equal to the angles β that should meet, to make radar current meter 4 be sent out Electromagnetic wave be mapped on specified section;
Fig. 5 is the flow that sensor device position coordinates are resolved, screened, merging and be used to adjust radar current meter inclination angle Figure.The geographic position data of sensor device is determined by Big Dipper high-precision difference positioning device 1;Pass through 2 essence of laser sensor Really measure the range data from sensor device to the water surface;By data acquisition module 5, Big Dipper high-precision difference positioning device The water surface in the range data and data acquisition module 5 acquired in geographic position data, laser sensor 2 acquired in 1 is accurate Elevation data obtains the accurate coordinates of current sensor device by resolving, screening, blending algorithm.Known sensor arrangement Accurate geographic position data, but the position data of section is specified in known river, may know that biography after being handled by data acquisition module 5 Horizontal distance of the sensor arrangement to specified section.Known sensor arrangement is to the horizontal distance of specified section, and known sensor Device to specified section horizontal distance, to obtain when the electromagnetic wave that radar current meter 4 is sent out is mapped on specified section with The angle that should meet between horizontal plane;The inclination angle of radar current meter, the electromagnetism for making it send out are adjusted by servo position module 3 Wave is mapped on specified section;Current flow speed data is acquired by radar current meter 4;
Fig. 6 is the connection structure diagram of hydrologic monitoring system, and the utility model installs biography on cableway triangle pulley support arm Sensor arrangement includes Big Dipper high-precision difference positioning device, servo position module, laser sensor and radar current meter.
Specific embodiment of the utility model is explained in detail above in conjunction with attached drawing, but the utility model and unlimited In above-described embodiment, within the knowledge of a person skilled in the art, the utility model can also not departed from Various changes can be made under the premise of objective.

Claims (3)

1. the water surface flow rate detection system under a kind of high water condition, it is characterised in that:Including Big Dipper high-precision difference positioning device (1), laser sensor(2), servo position module(3), radar current meter(4), data acquisition module(5), wireless data transmission Module(6), host computer(7);Big Dipper high-precision difference positioning device(1)Output end and data acquisition module(5)Input terminal It is connected;Laser sensor(2)Output end and data acquisition module(5)Input terminal is connected;Data acquisition module(5)Output end with watch Take locating module(3)Input terminal is connected;Servo position module(3)Output end and radar current meter(4)Input terminal is connected;Radar stream Fast instrument(4)Output end and data acquisition module(5)Input terminal is connected;Data acquisition module(5)Output end and wireless data transmission Module(6)Input terminal is connected, wireless data transfer module(6)Output end and host computer(7)Input terminal is connected, the north Struggle against high-precision difference positioning device(1), radar current meter(4), laser sensor(2), servo position module(3)It is installed together Form sensor device.
2. the water surface flow rate detection system under a kind of high water condition according to claim 1, it is characterised in that:The number According to acquisition module(5)Including CPU, memory;Data acquisition module(5)For by Big Dipper high-precision difference positioning device(1), swash Optical sensor(2)Acquired signal is handled, and then sends out control signal to servo position module(3)Adjust radar flow velocity Instrument(4)Inclination angle to specified angle, radar current meter(4)Measure the water surface flow speed data of specified section, and by the information of acquisition It is sent to data acquisition module(5), data acquisition module(5)By the information storage of reception in internal memory, and pass through Wireless data transfer module(6)Send signal to host computer(7).
3. the water surface flow rate detection system under a kind of high water condition according to claim 1, it is characterised in that:The biography Sensor arrangement is installed on cableway triangle pulley support arm.
CN201820088386.XU 2018-01-19 2018-01-19 A kind of water surface flow rate detection system under high water condition Active CN207894954U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108107234A (en) * 2018-01-19 2018-06-01 昆明理工大学 Water surface flow rate detection system and its detection method under a kind of high water condition
CN110031050A (en) * 2019-04-03 2019-07-19 昆明理工大学 A kind of natural river course flow measurement device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108107234A (en) * 2018-01-19 2018-06-01 昆明理工大学 Water surface flow rate detection system and its detection method under a kind of high water condition
CN110031050A (en) * 2019-04-03 2019-07-19 昆明理工大学 A kind of natural river course flow measurement device

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Effective date of registration: 20220118

Address after: 650000 building B08, Shuxiang Dadi community, Chenggong District, Kunming City, Yunnan Province

Patentee after: Kunming Huayu Automation Technology Co.,Ltd.

Address before: 650093 No. 253, Xuefu Road, Wuhua District, Yunnan, Kunming

Patentee before: Kunming University of Science and Technology