Novel integrated radar water level gauge

Abstract

The utility model provides a novel integrated radar water level gauge which comprises a shell, a main circuit board is arranged in the shell, a radar water level gauge sensor is arranged on one side in the shell, and a main control MCU, a lithium battery, a positioning module and an NB-IOT communication module are arranged on the main circuit board. The radar water level gauge sensor, the lithium battery, the positioning module and the NB-IOT communication module are all connected with the main control MCU; the NB-IOT communication module is connected with the cloud platform through the communication antenna, and the cloud platform is connected with the remote terminal. According to the utility model, the built-in lithium battery can be independently used for power supply, the installation is carried out under the condition that external power supply is inconvenient, the installation requirement is reduced, and the built-in lithium battery can be charged through the aviation plug and the connecting cable when the power supply is insufficient; and during installation, an external power supply can be connected through an aviation plug and a connecting cable to supply power to equipment for a long time, so that the workload of manual operation during charging is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of instruments and meters, in particular to a new type of integrated radar water level gauge for measuring the water levels of rivers, reservoirs, etc. Background Technique

[0002] A radar water level gauge is a water level gauge that uses high-frequency microwave radar technology. It emits electromagnetic waves through a sensor to irradiate the water surface and receives the echo, thereby analyzing and obtaining information such as the distance and azimuth from the water surface to the electromagnetic wave emission point. The radar water level gauge has many advantages. Since the radar emits electromagnetic waves and does not require a propagation medium, and the wave velocity is independent of pressure and temperature, it can be applied to more complex working conditions. Moreover, the radar has a large water level measurement range and high accuracy, and is suitable for water level monitoring of natural waters such as rivers, reservoirs, lakes, irrigation canals, and river channels, as well as water level monitoring of urban waterlogging on roads, flood control and disaster prevention, drainage pipe networks, manholes, etc.

[0003] Currently, most radar water level gauges adopt the method of radar water level gauge + supporting RTU equipment. The radar water level gauge has a single function, no built-in power supply, and most of its communication interfaces are 485 communication, without remote communication function. The power supply of the water level gauge depends on the RTU for power supply, and remote communication depends on the data forwarding of the RTU. The disadvantages of this solution are relatively obvious: 1. Because the function of the water level gauge itself is simple, an RTU device needs to be added to solve the power supply and remote communication functions. The price of the RTU is relatively high, most of which are in the thousands of yuan, and the overall cost is very high. 2. It increases the installation difficulty. In addition to the water level gauge itself, the installation of the RTU will also increase the workload. 3. It cannot work without an external power supply. In this solution, the water level gauge can be powered by the RTU, but the RTU itself has no built-in battery and needs an external power supply.

[0004] The utility model with the application number 202320642616.3 provides an integrated radar water level gauge, including: a waterproof housing, a waterproof housing cover plate, and a radar probe; on the outer side surface of the waterproof housing cover plate, there are respectively an antenna, an external power interface, a bubble level, a switch, and a setting and parameter adjustment interface. Inside the waterproof housing, there are a processor, a power management module, a wireless communication module, a data acquisition unit, and a storage battery. The storage battery is connected to the switch and the processor through the power management module, and the data acquisition unit is connected to the processor. The above-mentioned utility model is very convenient for installation and maintenance at the use site; it is a non-contact measurement to prevent siltation; the waterproof design ensures reliability and service life; it has a built-in battery and can switch the power supply method; the collected data is automatically uploaded wirelessly to the remote end to ensure that the device can work automatically for a long time in the wild or unmanned environment. However, the above-mentioned integrated radar water level gauge cannot perform physical position positioning, and subsequent geographical location changes, such as anti-loss and retrieval functions, cannot be realized. Content of the Utility Model

[0005] In view of the technical problems that existing radar water level gauges cannot perform physical position positioning and remote communication, the utility model proposes a new type of integrated radar water level gauge, which adds the functions of equipment physical position positioning and NB-IoT remote communication, and can realize the anti-loss and retrieval function and the display of water level information on the GIS map.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows: A new type of integrated radar water level gauge includes a housing, a main circuit board is arranged inside the housing, a radar water level gauge sensor is arranged on one side inside the housing, a main control MCU, a lithium battery, a positioning module and an NB-IoT communication module are arranged on the main circuit board, and the radar water level gauge sensor, the lithium battery, the positioning module and the NB-IoT communication module are all connected to the main control MCU; the NB-IoT communication module is connected to the cloud platform through a communication antenna, and the cloud platform is connected to the remote terminal.

[0007] Preferably, a positioning antenna is arranged on the housing, and the positioning antenna is connected to the positioning module; both the positioning antenna and the communication antenna are fixed on the housing.

[0008] Preferably, a bracket fixing hole is arranged at the top of the housing, and the top of the housing is connected to the mounting bracket through the bracket fixing hole.

[0009] Preferably, the positioning module is a GPS positioning chip or a Beidou navigation system.

[0010] Preferably, a spirit level is arranged at the upper part of the housing.

[0011] Preferably, the radar water level gauge sensor is a radar wave transmitting and receiving circuit board, and the radar wave transmitting and receiving circuit board is connected to the main control MCU; a front cover plate is arranged on one side of the housing, and the front cover plate matches the radar wave transmitting and receiving circuit board.

[0012] Preferably, the radar wave transmitting and receiving circuit board is parallel to the bottom of the housing.

[0013] Preferably, an aviation plug is arranged on the side of the housing, one end of the aviation plug is connected to an external power supply, the other end of the aviation plug is connected to a charging management circuit through a connecting cable, and the charging management circuit is connected to the lithium battery in series.

[0014] Preferably, the external power supply is a distribution box or a solar panel.

[0015] Preferably, the lithium battery is connected to a power conversion circuit, and the power conversion circuit is connected to the main control MCU; the housing is a waterproof cylindrical structure.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model can be powered by an internal lithium battery alone, which can be installed in the case of inconvenient external power supply, reducing the installation requirements. When the power is insufficient, the internal lithium battery can be charged through an aviation plug and a connecting cable; it can also be connected to an external power supply through an aviation plug and a connecting cable during installation to supply power to the device for a long time, so as to reduce the manual operation workload during charging. After the device of the present utility model is installed, information including water level, location, etc. can be regularly sent to a designated network platform through the NB-IOT communication module. The network platform can combine with the GIS geographic information system to display information such as the water level at the corresponding location of a river or a reservoir on the screen of a remote terminal, with direct and clear display and easy to understand at a glance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the present utility model.

[0019] Figure 2 is Figure 1 The internal structural schematic diagram shown.

[0020] Figure 3 It is a principle block diagram of the present utility model.

[0021] In the figure, 1 is a housing, 2 is an aviation plug, 3 is a spirit level, 4 is a front cover plate, 5 is a bracket fixing hole, 6 is a connecting cable, 8 is a main circuit board, 9 is a radar wave transmitting and receiving circuit board, 10 is a positioning module, 11 is a main control MCU, 12 is an NB-IOT communication module, and 13 is an external power supply. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Such as Figure 1As shown, a new type of integrated radar water level gauge includes a housing 1 for encapsulating the main circuit board 8 and the radar water level gauge sensor. The housing 1 is a waterproof cylindrical structure, which is convenient for fixing the main circuit board 8 and can reduce the overall volume. As Figure 2 shown, the housing 1 is provided with a main circuit board 8, and the main circuit board 8 is vertically fixed in the housing 1. The length of the cylindrical structure can be selected according to the size of the main circuit board 8. As Figure 3 shown, the main circuit board 8 is provided with a main control MCU 11, a lithium battery, a positioning module 10 and an NB-IOT communication module 12. The radar water level gauge sensor, the lithium battery, the positioning module 10 and the NB-IOT communication module 12 are all connected to the main control MCU 11. The positioning module 10 is used to locate the position of the entire integrated radar water level gauge, obtain the coordinate information of the installation position, and facilitate the positioning of the measured water level data. The NB-IOT communication module 12 transmits the coordinate information of the installation position and the water level measured by the radar water level gauge sensor to the cloud platform through wireless communication technology, so as to obtain the information of the entire device. A radar water level gauge sensor is provided on one side of the housing 1 for measuring data such as water level. The main control MCU 11 is a low-power single-chip microcomputer, and the model is STM32L496. The lithium battery is used to supply power to the main control MCU 11, and the entire device can be installed when external power supply is inconvenient. Therefore, it can also be conveniently applied when external power supply is inconvenient. The NB-IOT communication module 12 is connected to the cloud platform through a communication antenna. The cloud platform is connected to a remote terminal, and the NB-IOT communication has better stability. The model of the NB-IOT communication module 12 is BC260. The NB-IOT communication module 12 can transmit the information of the water level and the position coordinates to a specified network platform. Combined with the GIS geographic information system, the water level data at the corresponding position of the river or reservoir can be intuitively displayed on the GIS map, and the required measurement information can be found on the GIS map.

[0024] Further, a positioning antenna is provided on the housing 1, and the positioning antenna is connected to the positioning module 10; the positioning antenna and the communication antenna are both fixed on the top or side of the housing 1 through SMA connectors. The positioning module 10 is a GPS positioning chip or a Beidou navigation system, or both can be superimposed.

[0025] Further, as Figure 1As shown in the figure, the top of the housing 1 is provided with a bracket fixing hole 5, and the top of the housing 1 is connected to the mounting bracket through the bracket fixing hole 5. The bracket fixing hole 5 includes a central hole and three small holes. The central hole is arranged at the upper part of the top of the housing 1, and the three small holes are evenly distributed in the circumferential direction of the central hole. Both the central hole and the three small holes are fixedly connected to the mounting bracket by screws, and the housing 1 can be stably connected to the mounting bracket through the bracket fixing hole 5. Both the central hole and the three small holes are arranged on the surface of the housing 1 and are not through holes, that is, they are not connected to the inner cavity of the housing 1.

[0026] As Figure 1 shown in the figure, a spirit level 3 is provided at the upper part of the housing 1, which can be used to adjust the level of the water level gauge during installation to ensure that the equipment always maintains a level during operation, so as to improve the test accuracy.

[0027] As Figure 2 shown in the figure, the radar water level gauge sensor is a radar wave transmitting and receiving circuit board 9, and the radar wave transmitting and receiving circuit board 9 is connected to the main control MCU 11; the radar wave transmitting and receiving circuit board 9 is used to transmit radar waves and receive the reflected radar waves. A front cover plate 4 is provided on one side of the housing 1, and the front cover plate 4 is matched with the radar wave transmitting and receiving circuit board 9. The radar wave transmitting and receiving circuit board 9 is the radar wave transmitting and receiving surface, and the front cover plate 4 is a plastic part structure to avoid affecting the radar wave signal. The front cover plate 4 is a conical structure, and the radar wave transmitting and receiving surface faces the conical structure. The cone plays a role in restricting the beam angle of the transmitted wave, reducing the beam angle, and can reduce the requirements for the installation environment. The front cover plate 4 is connected to the housing 1 through a sealing ring to achieve waterproofing.

[0028] As Figure 2 shown in the figure, the radar wave transmitting and receiving circuit board 9 is parallel to the bottom of the housing 1, which is convenient for transmitting and receiving radar waves. The main circuit board 8 is perpendicular to the radar wave transmitting and receiving circuit board 9, and the radar wave transmitting and receiving circuit board 9 is parallel to the bottom of the housing 1. Since the structure is cylindrical, it is convenient to place the main circuit board 8. The main circuit board 8 can also be parallel to the radar wave transmitting and receiving circuit board 9.

[0029] An aviation plug 2 is provided on the side of the housing 1. One end of the aviation plug 2 is connected to an external power supply, and the other end of the aviation plug 2 is connected to a charging management circuit through a connecting cable 6. The charging management circuit is connected to the lithium battery. The external aviation plug 2 is connected to the main circuit board 8 through a connecting cable 6 to supply power or charge the system. Epoxy resin glue is poured at the connection between the aviation plug and the housing to achieve waterproofing.

[0030] The external power supply is a distribution box or a solar panel, which can charge the lithium battery through the distribution box or the solar panel, or directly supply power to the main circuit board 8, realizing multiple forms of power supply. The lithium battery is connected to the power conversion circuit, and the power conversion circuit is connected to the main control MCU 11, thereby converting the voltage of the lithium battery into the input voltage of the main control MCU 11.

[0031] This device is equipped with an aviation plug 2 and a connecting cable 6 for charging the built-in lithium battery, or connecting to an external power supply, namely the distribution box power supply or the solar panel power supply, through the aviation plug 2 and the connecting cable to supply power to the device for a long time, so as to reduce the manual operation workload during charging.

[0032] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A novel integrated radar water level gauge, comprising a housing (1), wherein a main circuit board (8) is provided inside the housing (1), and it is characterized in that, On one side inside the housing (1), a radar water level sensor is provided. On the main circuit board (8), there are a main control MCU (11), a lithium battery, a positioning module (10), and an NB-IOT communication module (12). The radar water level sensor, the lithium battery, the positioning module (10), and the NB-IOT communication module (12) are all connected to the main control MCU (11). The NB-IOT communication module (12) is connected to the cloud platform through a communication antenna, and the cloud platform is connected to a remote terminal.

2. The novel integrated radar water level gauge according to claim 1, characterized in that, A positioning antenna is provided on the housing (1), and the positioning antenna is connected to the positioning module (10). The positioning antenna and the communication antenna are both fixed on the housing (1).

3. The novel integrated radar water level gauge according to claim 1 or 2, characterized in that, A bracket fixing hole (5) is provided at the top of the housing (1), and the top of the housing (1) is connected to an installation bracket through the bracket fixing hole (5).

4. The novel integrated radar water level gauge according to claim 3, characterized in that, The positioning module (10) is a GPS positioning chip or a Beidou navigation system.

5. The novel integrated radar water level gauge according to claim 4, characterized in that, A spirit level (3) is provided on the upper part of the housing (1).

6. The novel integrated radar water level gauge according to claim 4 or 5, characterized in that, The radar water level sensor is a radar wave transmitting and receiving circuit board (9), and the radar wave transmitting and receiving circuit board (9) is connected to the main control MCU (11). A front cover plate (4) is provided on one side of the housing (1), and the front cover plate (4) matches the radar wave transmitting and receiving circuit board (9).

7. The novel integrated radar water level gauge according to claim 6, characterized in that, The radar wave transmitting and receiving circuit board (9) is parallel to the bottom of the housing (1).

8. The novel integrated radar water level gauge according to claim 7, characterized in that, An aviation plug (2) is provided on the side of the housing (1). One end of the aviation plug (2) is connected to an external power supply, and the other end of the aviation plug (2) is connected to a charging management circuit through a connection cable (6), and the charging management circuit is connected to the lithium battery.

9. The novel integrated radar water level gauge according to claim 8, characterized in that, The external power supply is a distribution box or a solar panel.

10. The novel integrated radar water level gauge according to any one of claims 7-9, characterized in that, The lithium battery is connected to a power conversion circuit, and the power conversion circuit is connected to the main control MCU (11). The housing (1) is a waterproof cylindrical structure.

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