CN207050727U - Water level flow rate monitoring integration device and monitoring system - Google Patents
Water level flow rate monitoring integration device and monitoring system Download PDFInfo
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- CN207050727U CN207050727U CN201720856954.1U CN201720856954U CN207050727U CN 207050727 U CN207050727 U CN 207050727U CN 201720856954 U CN201720856954 U CN 201720856954U CN 207050727 U CN207050727 U CN 207050727U
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Abstract
The utility model discloses a kind of water level flow rate monitoring integration device and monitoring system, described device includes indicator water measurement module, radar flow velocity measurement module, measuring wind speed module and flow rate calculation module, and the indicator water measurement module, radar flow velocity measurement module and measuring wind speed module are connected with flow rate calculation module respectively；Indicator water measurement module, the real time water level data for non-contact measurement river course/channel；Radar flow velocity measurement module, the real-time surface velocity data for non-contact measurement river course/channel；Measuring wind speed module, for measuring real-time air speed data with correction surface flow velocity；Flow rate calculation module, for according to waterlevel data, flow speed data and air speed data, with reference to river course/controlling channel section relevant parameter of input, the uninterrupted of current time river course/controlling channel section is calculated.The utility model can monitor the water level and flow velocity of river course/channel in real time, and can realize real-time flow monitoring.
Description
Technical field
A kind of monitoring integration device and monitoring system are the utility model is related to, especially a kind of water level flow rate monitoring
Integrated apparatus and monitoring system, belong to hydrologic monitoring technical field.
Background technology
In hydrologic monitoring, flow monitoring is core content therein, and one that monitoring difficulty is maximum, traditional prison
Survey means generally require to be completed by water under survey crew, and flow measurement workload is big, and time-consuming, and measurement efficiency is low, measurement
The experimental technology of precision and survey crew have much relations, and the flow measurement for pluvial age is just more difficult to realize.
With the progress of Water Conservancy Information technology, contactless e measurement technology is by safe and efficient metering system, standard
The advantages such as true measurement result have obtained significant progress, and the water level and flow rate measuring device of radar type are promoted at home
Using especially in recent years newly-built website.But research of the country based on contactless radar flow measurement equipment is less,
Not yet form the product of maturation.
On the one hand, the measurement of radar flow measurement apparatus is water surface flow velocity, and wind speed may influence surface velocity, especially
The coastal river course such as estuary is proximate to, so as to influence radar flow velocity measurement result, it is therefore necessary to correct flow velocity measurement result.
On the other hand, want to calculate the data on flows in river course, in addition to water level to be obtained and flow velocity these hydrographic datas, also
The relevant parameters such as elevation, roughness, gradient with reference to control section, using basic datas such as the hydrological models of the river course section, this
Sample can just obtain accurate uninterrupted.
Utility model content
The purpose of this utility model is to solve the defects of above-mentioned prior art, there is provided a kind of water level flow rate prison
Survey integrated apparatus, the monitoring integration device is simple in construction, easy to use, can monitor in real time river course/channel water level and
Flow velocity, and the river course/controlling channel section flow at current time can be calculated according to the control section relevant parameter of input
Size, so as to realize real-time flow monitoring.
Second purpose of the present utility model be to provide a kind of water level flow rate monitoring system, and the system can be with remote measurement
Function, conveniently realize that remote flow monitors, substantially increase the efficiency of flow measurement, improve the security of survey crew.
First purpose of the present utility model can be reached by adopting the following technical scheme that：
A kind of water level flow rate monitoring integration device, the monitoring integration device include indicator water measurement mould
Block, radar flow velocity measurement module, measuring wind speed module and flow rate calculation module, the indicator water measurement module, radar flow velocity
Measurement module and measuring wind speed module are connected with flow rate calculation module respectively；
The indicator water measurement module, the real time water level data for non-contact measurement river course/channel；
The radar flow velocity measurement module, the real-time surface velocity data for non-contact measurement river course/channel；
The measuring wind speed module, for measuring real-time air speed data with correction surface flow velocity；
The flow rate calculation module, for according to waterlevel data, flow speed data and air speed data, with reference to input river course/
Controlling channel section relevant parameter, the uninterrupted of current time river course/controlling channel section is calculated；Wherein, the control
Section relevant parameter processed includes elevation, roughness and gradient parameter.
Further, the indicator water measurement module uses the radar transceiver of K-band, and modulation system is linear frequency modulation
Continuous wave modulation system；
The radar flow velocity measurement module uses the radar transceiver of K-band, and modulation system is continuous wave modulating mode；
The measuring wind speed module uses wind speed and direction measuring instrument；
The flow rate calculation module uses single-chip microcomputer.
Second purpose of the present utility model can be reached by adopting the following technical scheme that：
A kind of water level flow rate monitoring system, the system include long-range host computer and above-mentioned water level flow rate
Monitoring integration device, the long-range host computer carry out radio communication with flow rate calculation module and are connected.
Further, the long-range host computer is connected with integrated apparatus using data transmission unit progress radio communication,
There is communication antenna, the communication antenna carries out radio communication with long-range host computer and is connected on the data transmission unit.
Further, the water level flow rate monitoring integration device is one or more, the water level flow rate
When monitoring integration device is one, it is fixedly mounted on vertical rod support；The water level flow rate monitoring integration device is
At more, composition array is fixedly mounted on below bridge.
Further, the water level flow rate monitoring integration device removably can be fixed on the railing of bridge.
The utility model has following beneficial effect relative to prior art：
1st, water level flow rate monitoring integration device of the present utility model is using contactless indicator water measurement mould
Block and radar flow velocity measurement module measure the real time water level data of river course/channel and real-time surface velocity data respectively, and adopt
Real-time air speed data is measured with measuring wind speed module, flow rate calculation module carries out school by air speed data to surface velocity data
Just, influence of the wind speed to surface velocity data is eliminated, according to the flow speed data after waterlevel data and correction, with reference to the river of input
The related datas such as road/controlling channel measuring height of section, roughness, gradient, the uninterrupted of river course/controlling channel section is calculated, no
Conventional river course/canal capacity monitoring is can only be used to, high mighty torrent amount can also be carried out and rob the emergence measurings such as survey.
2nd, indicator water measurement module of the present utility model uses the radar transceiver of K-band, and modulation system is adjusted to be linear
Frequency continuous wave modulation system, frequency modulation frequency range can be 24.005GHz~24.245GHz, i.e. frequency modulation width is 240MHz, modulating wave
For triangular wave, 50Hz, can try to achieve accurate difference frequency signal using Fourier transformation and Chirp transforms, pass through modulation period
The frequency of difference frequency signal is picked out so as to obtain the water level value of river course/channel, its measuring principle is simple, and measurement sensitivity is high, surveys
Amount reliability is excellent, is suitable for the measuring environment of complexity.
3rd, radar flow velocity measurement module of the present utility model uses the radar transceiver of K-band, and tranmitting frequency can fix
For 24.160GHz, modulation system is continuous wave modulating mode, and the radar wave of transmitting runs into current plane back reflection radar wave, and
Doppler shifted signal is produced, the surface velocity value of river course/channel is obtained by picking out the frequency of difference frequency signal, it is surveyed
The amount time is short, and measurement accuracy is high.
4th, flow rate calculation module of the present utility model can be using single-chip microcomputer as master controller, and it is based on river course/channel
Hydrological model calculates the uninterrupted of river course/controlling channel section, and Specialized Theory is strong, and flow rate calculation precision is high, applicability
By force, transplanting is convenient.
5th, water level flow rate monitoring integration device convenient disassembly of the present utility model, can both be fixedly mounted on vertical rod
Long-term flow monitoring is carried out on support or below bridge, can also removably be temporarily fixed on the railing of bridge and carry out height
Mighty torrent amount robs the emergence measuring tasks such as survey.
6th, water level flow rate monitoring integration device of the present utility model can carry out radio communication with long-range host computer
Connection, water level flow rate monitoring system is formed, can conveniently realized that remote flow monitors with telemetry function, substantially increase stream
The efficiency of measurement, contactless metering system ensure that the safety of survey crew.
7th, water level flow rate monitoring integration device of the present utility model uses data transmission unit with long-range host computer
Communicated, data transmission unit is based on wireless transmission method, and efficiency of transmission is high, reliable communications, and effective anti-rain declines, transmission speed
Comparatively fast, it is low in energy consumption, especially suitable for field remote measuring application scenario.
Brief description of the drawings
Fig. 1 is the water level flow rate monitoring integration device structure chart of the utility model embodiment 1.
Fig. 2 is the water level flow rate monitoring integration device structured flowchart of the utility model embodiment 1.
Fig. 3 is the measuring principle figure of the indicator water measurement module of the utility model embodiment 1.
Fig. 4 is the measuring principle figure of the radar flow velocity measurement module of the utility model embodiment 1.
Fig. 5 is that the flow velocity signal that the radar flow velocity measurement module of the utility model embodiment 1 obtains carries out Fourier analysis
The spectrogram obtained afterwards.
Fig. 6 is the water level flow rate monitoring integration device scheme of installation of the utility model embodiment 1.
Fig. 7 is the water level flow rate monitoring integration device array scheme of installation of the utility model embodiment 1.
Fig. 8 is the water level flow rate monitoring system structured flowchart of the utility model embodiment 2.
Fig. 9 is the water level flow rate monitoring method flow chart of the utility model embodiment 3.
Wherein, 1- indicator waters measurement module, 2- radar flow velocity measurement modules, 3- measuring wind speed modules, 4- flow rate calculations
Module, the long-range host computers of 5-, 6- water level flow rate monitoring integration devices, 7- data transmission units, 8- radio antennas.
Embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment 1：
As depicted in figs. 1 and 2, a kind of water level flow rate monitoring integration device is present embodiments provided, the monitoring one
Body makeup is put including indicator water measurement module 1, radar flow velocity measurement module 2, measuring wind speed module 3 and flow rate calculation module 4,
The indicator water measurement module 1, radar flow velocity measurement module 2, measuring wind speed module 3 are connected with flow rate calculation module 4 respectively,
Modules are described as follows：
The indicator water measurement module 1 by measuring radar emission plane the distance between to river course/channel water surface, then
The distance is subtracted with the fixation elevation of Radar Plane, that is, obtains the elevation of river course/channel water level, it uses K-band (24GHz)
Radar transceiver, is non-contact measurement mode, and its modulation system is linear frequency modulation continuous wave modulation system.
As shown in figure 3, the tranmitting frequency of radar wave linear increment or the (solid line in transmission signal such as Fig. 3 that successively decreases over time
It is shown), when the radar wave of transmitting runs into target object (i.e. river course/channel water surface) back reflection (dotted line institute in echo-signal such as Fig. 3
Show), and received after elapsed time τ by radar.
The frequency modulation frequency range of indicator water measurement module 1 is 24.005GHz~24.245GHz, i.e., frequency modulation width is 240MHz,
Modulating wave is triangular wave, modulation period 50Hz, it is accurately poor to be tried to achieve using Fourier (FFT) conversion and Chirp transforms
Frequency signal, the water level value of river course/channel is obtained by picking out the frequency of difference frequency signal, measuring principle is simple, measurement spirit
Sensitivity is high, and Measurement reliability is excellent, is suitable for the measuring environment of complexity.It for details, reference can be made to Application No. 201610984036.7, name
Referred to as《A kind of Modulation Continuous Wave Radar water level telemetering device and method》Utility application content.
The radar flow velocity measurement module 2 uses the radar transceiver of K-band (24GHz), and tranmitting frequency is fixed as
24.160GHz, modulation system are continuous wave modulating mode (cw patterns), and the radar wave of transmitting runs into current plane back reflection radar
Ripple, and doppler shifted signal (difference frequency signal) is produced, obtain river course/channel by picking out the frequency of difference frequency signal
Surface velocity value, its time of measuring is short, and measurement accuracy is high.Specific measuring principle and method are as follows：
The measurement of flow velocity is based on Doppler frequency shift measuring principle, as shown in figure 4, the tranmitting frequency of radar is fixed as f0, when
After radar transmitting wave gets to the water surface of flowing, radar wave returns to radar receiving plane, due to Doppler effect, reception signal
Frequency can change, and when water (flow) direction and completely vertical radar emission plane (α=90 °), cos α are 0, will now not had
Doppler frequency shift.Therefore to realize speed measuring function, Radar Plane must be kept at an angle with horizontal plane (it is general it is desirable 30 °~
60°)。
Because the electromagnetic wave of radar emission is a face, therefore the flow velocity measured is the flow velocity of one piece of water surface, is not a stream
Speed, in measurement water-surface areas, flow velocity size is possibly different from, and direction is also not quite identical.Therefore, the present embodiment measures
Water surface flow velocity is the concept of a surface mean flow rate.
Because measured zone there may be a variety of velocity components, also imply that there is a variety of difference frequency signal fd, it is how sharp
Surface mean flow rate is obtained with these difference frequency signals, is a big difficult point of the present embodiment, this gives a possibility
The signal obtained in flow velocity measurement, the signal contain a variety of beat frequencies, and Fourier is carried out for typical flow velocity signal
Analysis, as shown in figure 5, in Fig. 5, abscissa is frequency for the frequency spectrum of acquisition, and ordinate is the amplitude of the frequency, fLIt is corresponding flow velocity
The beat frequency of measurement lower limit, fHIt is to correspond to the beat frequency that flow velocity measures the upper limit, fmIt is the frequency that amplitude maximum is corresponded in the frequency range
Rate component, with fmCentered on, spectrum distribution approximation meets Gaussian Profile.
Amplitude size corresponding to each beat frequency in flow velocity measurement is different, and wherein the frequency of amplitude maximum is divided
Measure fmThe fundamental component of corresponding flow velocity.With fmCentered on, weight w is assigned to each frequency, spectral magnitude is bigger, and weight is bigger, its
Middle fmCorresponding weight wmMaximum, after determining weights, processing is weighted to each beat frequency component, obtains the survey of this flow velocity
The average beat frequency value of amount, so as to obtain surface mean flow rate.
The measuring wind speed module 3 uses wind speed and direction measuring instrument, can obtain wind speed, the wind direction at current time, and convert
For 485 signal outputs.
The flow rate calculation module 4 is used as master controller, embedded software algorithm and river course/channel using single-chip microcomputer (MCU)
Hydrological model, influence of the wind speed to surface velocity can be eliminated according to wind direction, according to wind speed and direction, ask for wind speed in current
Velocity component on direction, if the component is identical with flowing to, the surface velocity data of river course/channel are subtracted into this component, if phase
Instead, the surface velocity data of river course/channel are added into this component, to realize the correction to flow speed data, according to the water level of acquisition
Flow speed value after value and correction, with reference to the related datas such as the river course pre-entered/controlling channel measuring height of section, roughness, gradient, base
The uninterrupted of current time river course/controlling channel section is calculated in the hydrological model of river course/channel.
Flow rate calculation function prototype is as follows：
floatFlowCal(*float CtrlSection,float WaterLevel,float Velocity,
floatroughness,float slope)
In above-mentioned function prototype, CtrlSection is measuring height of section array name, stores one group of measuring height of section data, instead
Section configuration has been reflected, has been designated as CS below；WaterLevel is the water level elevation value of section；Velocity is water surface mean flow
Speed；Roughness is bed roughness；Slope is gradient.
The water level flow rate monitoring integration device of the present embodiment can be fixedly mounted on vertical rod support or bridge lower section
Carry out long-term flow monitoring, removably can also be fixedly mounted on temporarily on the railing of bridge carry out regular flow test and
High mighty torrent amount rob survey (refer to flood fluctuation drastically, flow velocity is big, floating object is more, stream of the section Scour and Accretion significantly etc. under hard situation
Measure measurement of trying to be the first), treat that test finishes i.e. detachable apparatus, be very suitable for provisional flow measurement.
It is less than 10 meters of section generally, for fluid stable, river surface width, it is only necessary to which a water level flow velocity stream is installed
Monitoring integration device is measured, equipment is typically required during installation against river course Zhong Hong positions or main flow component, as shown in Figure 6.For
Width is more than 10 meters of river cross-section, more water level flow rate monitoring integration devices can be used to form array installation, to carry
High measurement accuracy, as shown in Figure 7.
Embodiment 2：
As shown in Figure 1, Figure 2 with shown in Fig. 8, present embodiments provide a kind of water level flow rate monitoring system, the system includes
The water level flow rate monitoring integration device 6 of long-range host computer 5 and above-described embodiment 1, the long-range host computer 5 and flowmeter
Calculate the progress nothing of data transmission unit (Data Transfer unit, DTU) 7 that module 4 turns IP data modes using serial data
Line communicates to connect, and has radio antenna 8, the radio antenna 8 and long-range host computer on the data transmission unit 7
5 carry out radio communication connection.
In the present embodiment, the serial data of flow rate calculation module 4 is converted to IP data by data transmission unit 7, is used
IP data are sent in the database to long-range host computer 5 by wireless transmission method, while long-range host computer 5 can check water
Position, flow velocity, flow these Monitoring Datas, the function of field remote measuring is realized, and can be remotely to water by data transmission unit 7
The software of the flow rate calculation module 4 of bit stream speed flow monitoring integrated apparatus 6 is upgraded.
Embodiment 3：
As shown in figure 9, present embodiments providing a kind of water level flow rate monitoring method, this method is based on above-described embodiment
2 system is realized, is comprised the following steps：
S1, the waterlevel data by indicator water measurement module acquisition river course/channel；
S2, pass through measuring wind speed module acquisition air speed data and wind direction；
S3, the surface velocity data by radar flow velocity measurement module acquisition river course/channel；
S4, influence of the wind speed to surface velocity is considered, add wind speed correction, flow rate calculation module is called, according to wind
Speed and wind direction, ask for velocity component of the wind speed in water (flow) direction, if the component is identical with flowing to, by the surface of river course/channel
Flow speed data subtracts this component, if on the contrary, the surface velocity data of river course/channel are added into this component, to realize to flow velocity number
According to correction；
S5, flow rate calculation module are according to the flow speed data after the waterlevel data of acquisition and correction, with reference to the river pre-entered
The relevant parameters such as road/controlling channel measuring height of section, roughness, gradient, when the hydrological model based on river course/channel is calculated current
The control section uninterrupted at quarter；In addition, the control section uninterrupted by calculating each moment, can be calculated control
The average uninterrupted of section；
S6, using data transmission unit the control section data on flows being calculated is sent to by wireless transmission method
Long-range host computer, and be saved in database.
The concrete principle of the indicator water measurement module of the present embodiment, radar flow velocity measurement module and flow rate calculation module is same
Above-described embodiment 1.
In summary, water level flow rate monitoring integration device of the present utility model uses contactless indicator water
Measurement module and radar flow velocity measurement module measure the real time water level data of river course/channel and real-time surface velocity data respectively,
And real-time air speed data is measured using measuring wind speed module, flow rate calculation module is entered by air speed data to surface velocity data
Row correction, influence of the wind speed to surface velocity data is eliminated, according to the flow speed data after waterlevel data and correction, with reference to input
The relevant parameters such as river course/controlling channel measuring height of section, roughness, gradient, the uninterrupted of river course/controlling channel section is calculated,
Conventional river course/canal capacity monitoring is cannot be only used for, high mighty torrent amount can also be carried out and rob the emergence measurings such as survey.
It is described above, only the utility model patent preferred embodiment, but the protection domain of the utility model patent is simultaneously
This is not limited to, any one skilled in the art is in the scope disclosed in the utility model patent, according to this
Technical scheme and its utility model patent design of utility model patent are subject to equivalent substitution or change, belong to the utility model
The protection domain of patent.
Claims (9)
- A kind of 1. water level flow rate monitoring integration device, it is characterised in that：The monitoring integration device includes radar water Position measurement module, radar flow velocity measurement module, measuring wind speed module and flow rate calculation module, the indicator water measurement module, Radar flow velocity measurement module and measuring wind speed module are connected with flow rate calculation module respectively；The indicator water measurement module, the real time water level data for non-contact measurement river course/channel；The radar flow velocity measurement module, the real-time surface velocity data for non-contact measurement river course/channel；The measuring wind speed module, for measuring real-time air speed data with correction surface flow velocity；The flow rate calculation module, for according to waterlevel data, flow speed data and air speed data, with reference to river course/channel of input Control section relevant parameter, the uninterrupted of current time river course/controlling channel section is calculated；Wherein, the control is disconnected Face relevant parameter includes elevation, roughness and gradient parameter.
- 2. water level flow rate monitoring integration device according to claim 1, it is characterised in that：The indicator water is surveyed The radar transceiver that module uses K-band is measured, modulation system is linear frequency modulation continuous wave modulation system.
- 3. water level flow rate monitoring integration device according to claim 1, it is characterised in that：The radar flow velocity is surveyed The radar transceiver that module uses K-band is measured, modulation system is continuous wave modulating mode.
- 4. water level flow rate monitoring integration device according to claim 1, it is characterised in that：The measuring wind speed mould Block uses wind speed and direction measuring instrument.
- 5. water level flow rate monitoring integration device according to claim 1, it is characterised in that：The flow rate calculation mould Block uses single-chip microcomputer.
- A kind of 6. water level flow rate monitoring system, it is characterised in that：The system includes long-range host computer and claim Water level flow rate monitoring integration device described in any one of 1-5, the long-range host computer carry out nothing with flow rate calculation module Line communicates to connect.
- A kind of 7. water level flow rate monitoring system according to claim 6, it is characterised in that：The long-range host computer with Flow rate calculation module carries out radio communication connection using data transmission unit, has communication antenna on the data transmission unit, The communication antenna carries out radio communication with long-range host computer and is connected.
- A kind of 8. water level flow rate monitoring system according to claim 6, it is characterised in that：The water level flow rate Monitoring integration device is one or more, when the water level flow rate monitoring integration device is one, is fixedly mounted on On vertical rod support；When the water level flow rate monitoring integration device is more, composition array is fixedly mounted on below bridge.
- A kind of 9. water level flow rate monitoring system according to claim 6, it is characterised in that：The water level flow rate Monitoring integration device removably can be fixed on the railing of bridge.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593014A (en) * | 2018-06-15 | 2018-09-28 | 武汉中天恒禹信息技术有限公司 | Irrigated area channel coordination auto-measuring water system |
| CN109597122A (en) * | 2018-12-27 | 2019-04-09 | 广州威拓电子科技有限公司 | A kind of multifrequency segment length endurance submarine earthquake monitoring system and method |
| CN111693982A (en) * | 2020-06-09 | 2020-09-22 | 成都万江港利科技股份有限公司 | Radar speed measurement AI algorithm |
| CN113834537A (en) * | 2021-09-23 | 2021-12-24 | 唐山现代工控技术有限公司 | Real-time online flow measuring device and method for open channel |
-
2017
- 2017-07-14 CN CN201720856954.1U patent/CN207050727U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593014A (en) * | 2018-06-15 | 2018-09-28 | 武汉中天恒禹信息技术有限公司 | Irrigated area channel coordination auto-measuring water system |
| CN109597122A (en) * | 2018-12-27 | 2019-04-09 | 广州威拓电子科技有限公司 | A kind of multifrequency segment length endurance submarine earthquake monitoring system and method |
| CN111693982A (en) * | 2020-06-09 | 2020-09-22 | 成都万江港利科技股份有限公司 | Radar speed measurement AI algorithm |
| CN111693982B (en) * | 2020-06-09 | 2023-09-12 | 成都万江港利科技股份有限公司 | Radar speed measurement AI algorithm |
| CN113834537A (en) * | 2021-09-23 | 2021-12-24 | 唐山现代工控技术有限公司 | Real-time online flow measuring device and method for open channel |
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