CN212031745U - Floating type flow velocity measuring device - Google Patents
Floating type flow velocity measuring device Download PDFInfo
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- CN212031745U CN212031745U CN202020605492.8U CN202020605492U CN212031745U CN 212031745 U CN212031745 U CN 212031745U CN 202020605492 U CN202020605492 U CN 202020605492U CN 212031745 U CN212031745 U CN 212031745U
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Abstract
The utility model discloses a floating type flow velocity measuring device, which comprises a floating ball, wherein the inner cavity of the floating ball is provided with a control mainboard, the control mainboard is respectively provided with a high-precision GNSS module and a 4G real-time communication module, the bottom of the floating ball is provided with a balancing weight, the top end of the floating ball is fixedly connected with a sealing cover, the middle part of the upper surface of the sealing cover is provided with a connecting column, the inner cavity of the connecting column is provided with a circuit board, the circuit board is provided with an electric interface, and the upper surface of the sealing cover is provided with double-feed-point GNSS antennas at both sides of the connecting column, the utility model has the effects of strong satellite searching capability, high positioning precision, timely and convenient data transmission and use, and the full constellation satellite tracking chip can provide effective satellite searching at any time, thereby ensuring that the equipment can have designed positioning and speed, the use of the 4G/5G network communication technology can ensure the timely transmission of data and the remote real-time query.
Description
Technical Field
The utility model relates to a velocity of flow measurement technical field specifically is a float formula velocity of flow measuring device.
Background
With the continuous development of hydraulic resources in the current society, more and more hydraulic buildings are built. For most hydraulic structures such as fishways, channels and the like, before construction, certain hydraulic analysis needs to be carried out on the hydraulic structures to discuss whether the structures meet requirements. The hydraulic structure is simulated by a hydraulic physical model to obtain a relevant hydraulic analysis result.
The hydraulic physical model is a hydraulic model which can be operated under laboratory conditions by reducing an original hydraulic building according to a certain model scale by utilizing geometric, motion and dynamic similarity criteria. The flow velocity of water flow is used as an important index for evaluating the work such as the construction feasibility of hydraulic buildings and the feasibility of fish passing conditions in fishways in a hydraulic physical model test, and has very important practical significance for accurately measuring the water flow velocity.
The portable current meter for measuring the flow velocity of water flow has the characteristics of accurate measurement, simple and convenient use and maintenance operation and convenient carrying, so that the portable current meter is very widely applied to the flow velocity measurement of a hydraulic physical model.
No current flow velocity measurement device patent is a full constellation satellite system utilizing Beidou satellites to gather GPS, GLONASS, SBAS and the like, and in addition, the current flow velocity measurement device does not use a 4G/5G network communication technology to remotely transmit acquired measurement data to a server end, so that a PC end and a mobile phone end can check the measurement data in real time, and the real-time performance, on-line performance and convenience of the measurement data cannot be realized.
Disclosure of Invention
An object of the utility model is to provide a float formula velocity of flow measuring device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a float formula current velocity measuring device, includes the floater, the floater inner chamber is provided with the control mainboard, be provided with high accuracy GNSS module and 4G real-time communication module on the control mainboard respectively, the floater bottom is provided with the balancing weight, just sealed lid of floater top fixedly connected with, sealed lid upper surface middle part is provided with the spliced pole, the spliced pole inner chamber is provided with the circuit board, be provided with electrical interface on the circuit board, the both sides that sealed lid upper surface is located the spliced pole all are provided with double-feed point GNSS antenna, and during the use, the floater is along with the drift, measures elements such as the water flow velocity, flow direction through the built-in high accuracy GNSS module of floater, and operation big dipper intelligence current measuring system software (PC webpage version or ann zhao APP) is through built-in 4G real-time communication module, and the orbit, time, position, the velocity of, Flow direction and other data, software supports exporting data file formats required by each hydrological system, supports data track line playback, stores the data in a server in real time without worrying about data loss, the position of the floating ball can be known in real time through the map function of software, survey personnel can search according to the position of the floating ball, the double-feed point GNSS antenna is two dipoles which are orthogonally oriented, when the received signals of each dipole are summarized, after a 90 degree phase shift of one signal, it perfectly replicates the full bandwidth cyclic response of the entire antenna, which greatly improves the rejection of cross-polarized (multipath) signals, therefore, the precision is much higher than that of a single feed point antenna, all 4G, 3G and 2G frequency bands of three operators in China are supported through the 4G real-time communication module, and the flow velocity ball can upload measurement data to a central server in time in various network environments.
As a further aspect of the present invention: the high-precision GNSS module adopts simultaneous receiving of at least three GNSS systems, the GNSS systems are GPS/Galileo and Beidou or GLONASS, so that the high-precision GNSS module can identify a plurality of satellites simultaneously, the GNSS systems and the WAAS, the EGNOS and the MSAS enhance the QZSS, the GAGAN and the IMES together, and measurement precision is greatly improved.
As a further aspect of the present invention: the floater top avris is provided with the seal groove, the seal groove is the loop configuration, just sealed bottom avris of covering corresponds with the seal groove and is provided with the sealing washer, the size of sealing washer is identical with the size of seal groove, through the cooperation of seal groove and sealing washer, has improved the sealing performance of floater.
As a further aspect of the present invention: the floating ball sealing structure is characterized in that a second connecting plate is arranged at the top end of the floating ball, a first connecting plate is arranged at the bottom of the sealing cover, the first connecting plate and the second connecting plate are of annular structures, the first connecting plate and the second connecting plate are locked and fixed through fixing screws, and the floating ball and the sealing cover are convenient to detach and install through the first connecting plate and the second connecting plate.
As a further aspect of the present invention: the electric interface adopts a 5V/1A charging head and a charging wire.
As a further aspect of the present invention: the diameter of the balancing weight is 5-7cm, and the length of the balancing weight is 20 cm.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses it is strong to have the star ability of searching for, positioning accuracy is high, and data transmission uses in time, effect such as convenience, full constellation satellite tracking chip can provide the effective star of searching for at any time, ensure that equipment can possess the location and the precision of testing the speed of design in various harsh application environment, 4G 5G network communication technology's use, can guarantee timely transmission and the distal end real-time query of data, meet emergent survey flow task such as torrential flood or damming lake heavy, can in time provide flow survey flow data to the user effectively.
2. The Beidou intelligent flow measuring system is very strong in adaptability, is very little influenced by natural environment and weather factors, is not limited by visibility, is not influenced by weather such as rain, snow and the like, and is not limited by navigation, the Beidou intelligent flow measuring system is very simple in arrangement mode, and the communication between a measurer and a measuring floating ball is not needed, so that the safety of the measurer is guaranteed.
Drawings
Fig. 1 is a schematic structural view of a floating type flow velocity measuring apparatus.
Fig. 2 is a schematic structural diagram of a connecting column in a floating type flow velocity measuring device.
Fig. 3 is a schematic structural view of a sealing groove in a floating type flow velocity measuring apparatus.
Fig. 4 is a schematic structural diagram of a control main board in a floating type flow velocity measuring apparatus.
In the figure: 1. a floating ball; 2. a sealing cover; 3. a first connecting plate; 4. a set screw; 5. connecting columns; 6. a double-feed-point GNSS antenna; 7. a second connecting plate; 8. a circuit board; 9. an electrical interface; 10. a control main board; 11. a high-precision GNSS module; 12. a 4G real-time communication module; 13. a sealing groove; 14. and a balancing weight.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-4, in the embodiment of the present invention, a float type flow velocity measuring device, including the floater 1, the 1 inner chamber of floater is provided with the control mainboard 10, be provided with high accuracy GNSS module 11 and 4G real-time communication module 12 on the control mainboard 10 respectively, 1 bottom of floater is provided with the balancing weight 14, just the sealed lid 2 of 1 top fixedly connected with of floater, sealed lid 2 upper surface middle part is provided with spliced pole 5, the 5 inner chambers of spliced pole are provided with circuit board 8, be provided with electrical interface 9 on the circuit board 8, the sealed lid 2 upper surface both sides that lie in spliced pole 5 all are provided with double feed point GNSS antenna 6.
When the device is used, the floating ball 1 drifts along with water, under the action of the balancing weight 14, the floating ball 1 can be prevented from being influenced by wind to measure the flow velocity of a water body, so that the accuracy is improved, the factors such as the flow velocity, the flow direction and the like of the water surface are measured through the built-in high-precision GNSS module 11 of the floating ball 1, Beidou intelligent flow measuring system software (PC webpage version or android APP) is operated to collect and display data such as the drift track, time, position, flow velocity, flow direction and the like of the floating ball 1 in real time through the built-in 4G real-time communication module 12, software supports the derivation of a data file format required by each hydrological system, supports the playback of a data track line, saves the data in a server in real time, does not need to worry about the data, can know the position of the floating ball 1 in real time through the map function of the software, a measurer can perform homing according to, when the received signals of each dipole are summarized, after 90-degree phase offset of one signal, the dipole perfectly replicates full-bandwidth cyclic response of the whole antenna, so that rejection of cross-polarization (multipath) signals is greatly improved, the antenna has higher precision than a single-feed-point antenna, all 4G, 3G and 2G frequency bands of three operators in China are supported by the 4G real-time communication module 12, and the flow velocity ball can timely upload measured data to a central server in various network environments.
The high-precision GNSS module 11 employs simultaneous reception of at least three GNSS systems.
The GNSS system is GPS/Galileo and beidou or GLONASS, so that the high-precision GNSS module 11 can identify a plurality of satellites at the same time, and the GNSS system, WAAS, EGNOS, and MSAS enhance QZSS, GAGAN, and IMES together, thereby greatly improving the measurement precision.
The 1 top avris of floater is provided with seal groove 13, seal groove 13 is the loop configuration, just 2 bottom avris of sealed lid correspond with seal groove 13 and are provided with the sealing washer, the size of sealing washer is identical with the size of seal groove 13.
Through the cooperation of seal groove 13 and sealing washer, improved the sealing performance of floater 1.
The top end of the floating ball 1 is provided with a second connecting plate 7, the bottom of the sealing cover 2 is provided with a first connecting plate 3, the first connecting plate 3 and the second connecting plate 7 are both of annular structures, and the first connecting plate 3 and the second connecting plate 7 are locked and fixed through a fixing screw 4.
Through the first connecting plate 3 and the second connecting plate 7 that set up, be convenient for dismantle and install floater 1 and sealed lid 2.
The electric interface 9 adopts a 5V/1A charging head and a charging wire.
The diameter of the balancing weight 14 is 5-7cm, and the length is 20 cm.
The quick flow monitoring method of the Beidou intelligent flow measurement system based on the GNSS buoy comprises the following steps:
1. introducing large section data, setting water level, utilizing the large section data, and calculating the water passing area of the section by combining the water level;
2. the setting calculation method includes: the Zhonghong buoy method and the uniform buoy method;
1) the Zhonghong buoy method is that one buoy flow velocity of the Zhonghong is used as the surface flow velocity, the surface flow velocity multiplied by the Zhonghong buoy coefficient can be converted into the section average flow velocity, and the section flow can be calculated by the section average flow velocity multiplied by the water passing area;
2) the uniform floating method is that speed measuring vertical lines are arranged according to a current meter constant measurement method, cross-section virtual flow velocity transverse distribution is drawn through a plurality of floating flow velocities, the surface flow velocity of each conventional vertical line is interpolated by adopting a linear interpolation method, the average flow velocity of each vertical line can be obtained by multiplying each surface flow velocity by a surface flow velocity coefficient, and then the flow of the section is calculated by utilizing an average segmentation method.
The measurement principle of the Beidou intelligent flow measurement system is as follows:
the GNSS of the current velocity ball relies on Doppler values to measure the velocity, the carrier phase difference is used for obtaining Doppler, and the obtained velocity is the average velocity in the interval of two adjacent difference time.
fi is the microwave frequency transmitted by the Doppler velocimeter;
vg is the velocity component of the carrier in the direction of motion, called ground speed;
gamma is an included angle between the moving direction and the echo direction;
vor is the radial velocity of the carrier relative to the echo direction;
and c is the propagation velocity of the electromagnetic wave.
If the Doppler frequency shift fd is measured, the navigation speed upsilong or upsilonr of the carrier can be solved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a float formula velocity of flow measuring device, includes floater (1), its characterized in that, floater (1) inner chamber is provided with control mainboard (10), be provided with high accuracy GNSS module (11) and 4G real-time communication module (12) on control mainboard (10) respectively, floater (1) bottom is provided with balancing weight (14), just floater (1) top fixedly connected with seals lid (2), sealed lid (2) upper surface middle part is provided with spliced pole (5), spliced pole (5) inner chamber is provided with circuit board (8), be provided with electrical interface (9) on circuit board (8), the both sides that sealed lid (2) upper surface is located spliced pole (5) all are provided with double feed point GNSS antenna (6).
2. A floating anemometry unit according to claim 1, characterized by said high-precision GNSS module (11) using simultaneous reception of at least three GNSS systems.
3. The floating flow velocity measuring device according to claim 1, wherein the top end of the floating ball (1) is provided with a sealing groove (13), the sealing groove (13) is of an annular structure, the bottom end of the sealing cover (2) is provided with a sealing ring corresponding to the sealing groove (13), and the size of the sealing ring is matched with that of the sealing groove (13).
4. The floating type flow velocity measuring device according to claim 1, wherein a second connecting plate (7) is arranged at the top end of the floating ball (1), a first connecting plate (3) is arranged at the bottom of the sealing cover (2), the first connecting plate (3) and the second connecting plate (7) are both of annular structures, and the first connecting plate (3) and the second connecting plate (7) are locked and fixed through a fixing screw (4).
5. A floating flow rate measuring device according to claim 1, wherein the electrical interface (9) employs a 5V/1A charging head and charging wires.
6. A floating flow rate measuring device according to claim 1, wherein the clump weight (14) has a diameter of 5-7cm and a length of 20 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020605492.8U CN212031745U (en) | 2020-04-21 | 2020-04-21 | Floating type flow velocity measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020605492.8U CN212031745U (en) | 2020-04-21 | 2020-04-21 | Floating type flow velocity measuring device |
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| CN212031745U true CN212031745U (en) | 2020-11-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115166292A (en) * | 2022-06-02 | 2022-10-11 | 珠江水文水资源勘测中心 | Drifting type monitor based on artificial intelligence and monitoring method thereof |
| CN117068336A (en) * | 2023-07-14 | 2023-11-17 | 交通运输部水运科学研究所 | Real-time ship draft detection method and system based on RTK carrier phase difference |
| CN117104429A (en) * | 2023-07-14 | 2023-11-24 | 交通运输部水运科学研究所 | Ship draft real-time detection method and system |
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2020
- 2020-04-21 CN CN202020605492.8U patent/CN212031745U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115166292A (en) * | 2022-06-02 | 2022-10-11 | 珠江水文水资源勘测中心 | Drifting type monitor based on artificial intelligence and monitoring method thereof |
| CN115166292B (en) * | 2022-06-02 | 2024-04-12 | 珠江水文水资源勘测中心 | Drifting type monitor based on artificial intelligence and monitoring method thereof |
| CN117068336A (en) * | 2023-07-14 | 2023-11-17 | 交通运输部水运科学研究所 | Real-time ship draft detection method and system based on RTK carrier phase difference |
| CN117104429A (en) * | 2023-07-14 | 2023-11-24 | 交通运输部水运科学研究所 | Ship draft real-time detection method and system |
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