Millimeter wave radar type digital water gauge

Abstract

The utility model relates to the technical field of water gauges, and discloses a millimeter wave radar type digital water gauge which comprises a water gauge body, an installation base is fixed to the bottom of the water gauge body, a shell is arranged on the top of the water gauge body, a connecting assembly is arranged between the shell and the water gauge body, and a water level detection assembly is arranged in the shell. The connecting assembly comprises a connecting sleeve fixedly connected to the bottom of the shell, threads are arranged on the side wall of the water gauge, the water gauge is sleeved with the connecting sleeve in a threaded mode, an elastic piece is fixed to the inner side of the threads, and a fastener is further arranged between the water gauge and the shell and used for enhancing the connectivity between the shell and the water gauge. According to the millimeter wave radar type digital water gauge, the maintenance cost is reduced, and the damaged radar measuring unit can be replaced timely and quickly, so that the delay of water level monitoring operation is avoided, and the monitoring task is ensured to be carried out smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of water gauges, in particular to a millimeter wave radar type digital water gauge. Background Art

[0002] Water gauges are widely used in projects such as soft soil foundation treatment and port terminals. They are used to monitor water levels in water conservancy projects such as rivers, lakes, reservoirs, hydropower stations, irrigation areas and water transfer. They are also suitable for monitoring water levels in municipal projects such as tap water, urban sewage treatment, and urban road waterlogging.

[0003] For the water gauge in the prior art, the signal processing unit and other equipment are arranged inside the water gauge. Since the signal processing unit and other equipment inside the water gauge are integrated with the water gauge body, when they are severely corroded after long-term use or need to be repaired or replaced, the entire water gauge and its internal equipment need to be disassembled and replaced together, which leads to high maintenance costs. Moreover, when the signal processing unit inside the water gauge needs maintenance, the entire device needs to be disassembled, which increases the complexity and time-consuming nature of the maintenance process, thereby increasing the maintenance cost. In particular, the bottom of the water gauge is installed in the water, and a lot of manpower and time are required to replace or repair the device, which reduces the efficiency of the water level detection operation and causes delays to the water level detection operation.

[0004] Therefore, it is necessary to design a millimeter-wave radar digital water gauge to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a millimeter wave radar type digital water gauge.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A millimeter wave radar digital water gauge comprises a water gauge, a mounting seat is fixed at the bottom of the water gauge, a shell is provided at the top of the water gauge, a connecting component is provided between the shell and the water gauge, a water level detection component is provided inside the shell, the connecting component comprises a connecting sleeve fixedly connected to the bottom of the shell, a thread is provided on the side wall of the water gauge, the connecting sleeve is threadedly sleeved on the water gauge, an elastic member is fixed on the inner side of the thread, a fastener is also provided between the water gauge and the shell, and the fastener is used to strengthen the connectivity between the shell and the water gauge.

[0008] As a preferred technical solution of the utility model, the fastener includes a control cavity arranged inside the mounting seat, the control cavity is internally sealed and slidably connected with a pressure plate, a spring is provided between the pressure plate and the inner top surface of the control cavity, a connecting rod is fixedly connected to the lower surface of the pressure plate, the bottom end of the connecting rod extends to the outside of the control cavity, and the bottom end of the connecting rod is fixedly connected to a driving plate, the interior of the elastic member is hollow, and a connecting pipe is provided on the side wall of the elastic member, and the connecting pipe is connected to the interior of the control cavity.

[0009] As a preferred technical solution of the utility model, the water level detection component includes a radar circuit board responsible for signal processing, an antenna for transmitting and receiving radar waves, and a power supply device for providing power. The radar circuit board and the power supply device are both located inside the shell, the antenna is installed at the bottom of the shell, and the antenna and the radar circuit board are both electrically connected to the power supply device.

[0010] As a preferred technical solution of the utility model, the water gauge is made of stainless steel, and the side wall of the water gauge is provided with scale lines.

[0011] As a preferred technical solution of the utility model, the elastic member is made of rubber.

[0012] As a preferred technical solution of the present utility model, the power supply equipment is a solar cell panel.

[0013] The utility model has the following beneficial effects:

[0014] 1. Reduce maintenance costs: By making the outer shell of the water gauge separable from the water gauge body, when the radar measurement unit needs to be maintained or replaced, only the outer shell needs to be removed without removing the entire water gauge and internal equipment, thereby reducing maintenance costs;

[0015] 2. Rapid response to maintenance needs: Design improvements enable damaged radar measurement units to be replaced promptly and quickly, thus avoiding delays in water level monitoring operations and ensuring the smooth progress of monitoring tasks;

[0016] 3. Improve operational efficiency: The fasteners in the design make the connection between the connecting sleeve and the water gauge more secure, and at the same time form a more stable connection between the connecting sleeve and the water gauge, thereby reducing the complexity of the installation process and improving operational efficiency;

[0017] 4. Improve data reliability: By setting up a water level detection component, compared with the traditional electrode-type electronic water gauge, the device has lower water quality requirements and wider applicability. It can operate stably under various environmental conditions, thus solving problems such as easy corrosion and misconduct affecting detection accuracy, and ensuring the accuracy and reliability of the data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of the millimeter wave radar type digital water gauge proposed by the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the shell and the water gauge;

[0020] Figure 3 for Figure 2 A magnified view of the structure at A;

[0021] Figure 4 for Figure 2 A magnified view of the structure at B;

[0022] Figure 5 This is the schematic diagram of the millimeter wave radar digital water gauge for monitoring water level.

[0023] In the figure: 1 water gauge, 2 housing, 3 radar circuit board, 4 antenna, 5 power supply equipment, 6 mounting seat, 7 connecting sleeve, 8 thread, 9 elastic member, 10 connecting pipe, 11 connecting rod, 12 pressure plate, 13 spring, 14 drive plate, 15 control chamber. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-5 A millimeter wave radar digital water gauge comprises a water gauge 1, a mounting seat 6 is fixed at the bottom of the water gauge 1, a shell 2 is arranged at the top of the water gauge 1, a connecting assembly is arranged between the shell 2 and the water gauge 1, a water level detection assembly is arranged inside the shell 2, the connecting assembly comprises a connecting sleeve 7 fixedly connected to the bottom of the shell 2, a thread 8 is arranged on the side wall of the water gauge 1, the connecting sleeve 7 is threadedly sleeved on the water gauge 1, an elastic member 9 is fixed on the inner side of the thread 8, a fastener is further arranged between the water gauge 1 and the shell 2, the fastener is used to strengthen the connectivity between the shell 2 and the water gauge 1, the shell 2 and the water gauge 1 are detachably arranged, so that when a water level detection unit in the device fails, it can be disassembled and replaced in time, which is convenient for the staff to carry out maintenance, and at the same time shortens the suspension time of the water level monitoring operation and improves the maintenance efficiency.

[0026] Reference Figure 4The fastener includes a control chamber 15 embedded in the mounting seat 6, and the control chamber 15 is sealed and slidably connected with a pressure plate 12 inside. A spring 13 is provided between the pressure plate 12 and the inner top surface of the control chamber 15, and a connecting rod 11 is fixedly connected to the lower surface of the pressure plate 12. The bottom end of the connecting rod 11 extends to the outside of the control chamber 15, and the bottom end of the connecting rod 11 is fixedly connected to a driving plate 14. The interior of the elastic member 9 is hollow, and a connecting pipe 10 is provided on the side wall of the elastic member 9. The connecting pipe 10 is connected to the interior of the control chamber 15. By setting the fastener, during the installation process of the device, the elastic member 9 will be inflated and expanded to fill the space between the connecting sleeve 7 and the thread 8, which can increase the contact area between the two, increase the friction force, and thus improve the stability of the connection between the two. A valve is also provided in the connecting pipe 10, so that when the housing 2 is disassembled, the valve is opened so that the air in the elastic member 9 can be discharged, which is convenient for the staff to screw the housing 2.

[0027] Reference Figure 1 The water level detection component includes a radar circuit board 3 responsible for signal processing, an antenna 4 for transmitting and receiving radar waves, and a power supply device 5 for providing power. The radar circuit board 3 and the power supply device 5 are both located inside the housing 2, and the antenna 4 is installed at the bottom of the housing 2. The antenna 4 and the radar circuit board 3 are both electrically connected to the power supply device 5. The radar circuit board 3 includes a radio frequency front-end module and a baseband chip. The radio frequency front-end module is a component connected to the antenna 4 in the communication system, which is responsible for the modulation, demodulation, amplification, filtering and other processing of radio frequency signals. It is usually responsible for processing radio frequency signals. These signals are transmitted through the antenna 4, converted into digital signals after passing through the radio frequency front-end module, and then input into the baseband chip for further processing. The baseband chip is responsible for processing It usually processes digital signals for modulation and demodulation, data processing, protocol processing and other tasks. These signals have been collected and pre-processed by the RF front-end module and are usually input into the baseband chip in the form of baseband signals. The baseband chip can decode, demodulate and process these signals, and finally transmit the data to the upper protocol stack or other processing units. Through the water level monitoring component, the detection signal can be transmitted to the terminal quickly and timely, and the staff can observe the data intuitively and clearly. Secondly, due to the detection by radar, compared with the traditional electrode electronic water gauge, this detection method is not limited by the conductivity of the liquid, has a wide range of applications, is less affected by impurities in the water, and the detection data is reliable and accurate.

[0028] Reference Figure 1 The water gauge 1 is made of stainless steel, and the side wall of the water gauge 1 is provided with scale lines. The surface of the water gauge 1 is coated with a protective layer through a baking paint process, which can slow down the corrosion rate of the device and save monitoring costs. The scale lines also make it convenient for staff to directly observe the water level with the naked eye.

[0029] Reference Figure 3The elastic member 9 is made of rubber, which reduces the cost of replacing and maintaining the elastic member 9 while ensuring the stability of the connection between the housing 2 and the water gauge 1.

[0030] Reference Figure 1 The power supply device 5 is a solar panel. Specifically, the solar panel includes a battery, an inverter and a solar panel. The photovoltaic effect is used to convert solar energy into electrical energy, and the inverter converts direct current into alternating current. The battery can store electrical energy. The solar panel can ensure the battery life of the device and reduce the power supply work of the staff.

[0031] The specific working principle of the utility model is as follows:

[0032] When installing the device, first screw the connecting sleeve 7 onto the water gauge 1, and the elastic member 9 can fill the gap between the connecting sleeve 7 and the water gauge 1 to increase the friction between the two, so as to ensure the tightness of the connection between the two. Then the staff fixes the mounting base 6 to the ground by means of bolts or the like. When the mounting base 6 contacts the ground, it will squeeze the driving plate 14, so that the connecting rod 11 and the pressure plate 12 move upward. The upward movement of the pressure plate 12 will squeeze the air into the connecting pipe 10, and then enter the elastic member 9. The inflation of the elastic member 9 can further fill the gap between the connecting sleeve 7 and the water gauge 1, so as to further improve the stability and reliability of the connection between the two, so that the device can cope with bad weather. The detachable design of the housing 2 and the water gauge 1 makes it only necessary to disassemble the housing 2 when the radar measuring unit needs to be repaired, so as to reduce the workload of the staff and replace the damaged radar measuring unit in a timely and rapid manner, thereby preventing delays in water level monitoring operations and reducing maintenance costs.

[0033] During water level monitoring, antenna 4 is used to transmit and receive radar waves. The received signal will be transmitted to the RF front-end module in the radar circuit board 3. The RF front-end module can perform pre-processing such as amplification and filtering on the signal. The signal is converted into a digital signal after passing through the RF front-end module. The processed signal will then be received by the baseband chip. The baseband chip is responsible for processing tasks such as modulation and demodulation, data processing, and protocol processing of digital signals. A module configuration and control module is provided in the baseband chip. The connection between the module and the RF front-end module is adapted to the SPI protocol. This protocol is used for communication and data transmission between digital devices. It is a simple and efficient communication protocol. The module configuration and control module is to coordinate and manage the work of various functional modules inside the chip to realize the communication function of the device and ensure the stability, reliability and efficiency of the communication. It is worth mentioning that the signal processed by the RF front-end module is transmitted to the baseband chip through differential sampling technology. Compared with ordinary single-ended sampling, it has higher anti-interference ability and better signal transmission quality, and can obtain more accurate and reliable data. In addition, the DMA data transmission technology is used between the RF front-end module and the baseband chip, allowing external devices to directly access the system memory without the intervention of the CPU, which can improve the efficiency and speed of data transmission. The signal processed by the baseband chip is transmitted to the host computer through the Modbus communication module, so that the staff can observe the water level data in real time and conveniently. Compared with the traditional electrode-type electronic water gauge, this device uses radar monitoring, has lower requirements on water quality, and is applicable to a wide range of scenarios. It solves the problems of easy corrosion and misconduct affecting detection accuracy, has a large measurement range, and timely and accurate data feedback.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A millimeter wave radar digital water level gauge, comprising a water level gauge (1), characterized in that: A mounting seat (6) is fixed at the bottom of the water gauge (1), a shell (2) is provided at the top of the water gauge (1), a connecting assembly is provided between the shell (2) and the water gauge (1), a water level detection assembly is provided inside the shell (2), the connecting assembly comprises a connecting sleeve (7) fixedly connected to the bottom of the shell (2), a thread (8) is provided on the side wall of the water gauge (1), the connecting sleeve (7) is threadedly sleeved on the water gauge (1), an elastic member (9) is fixed on the inner side of the thread (8), and a fastener is further provided between the water gauge (1) and the shell (2), the fastener is used to strengthen the connectivity between the shell (2) and the water gauge (1).

2. The millimeter wave radar type digital water gauge according to claim 1 is characterized in that: The fastener comprises a control chamber (15) arranged inside the mounting seat (6); the control chamber (15) is sealed and slidably connected to a pressure plate (12); a spring (13) is provided between the pressure plate (12) and the inner top surface of the control chamber (15); a connecting rod (11) is fixedly connected to the lower surface of the pressure plate (12); the bottom end of the connecting rod (11) extends to the outside of the control chamber (15); and the bottom end of the connecting rod (11) is fixedly connected to a driving plate (14); the interior of the elastic member (9) is hollow; a connecting pipe (10) is provided on the side wall of the elastic member (9); and the connecting pipe (10) is connected to the interior of the control chamber (15).

3. The millimeter wave radar type digital water gauge according to claim 1, characterized in that: The water level detection component comprises a radar circuit board (3) responsible for signal processing, an antenna (4) for transmitting and receiving radar waves, and a power supply device (5) for providing power; the radar circuit board (3) and the power supply device (5) are both located inside the housing (2); the antenna (4) is installed at the bottom of the housing (2); and the antenna (4) and the radar circuit board (3) are both electrically connected to the power supply device (5).

4. The millimeter wave radar type digital water gauge according to claim 1, characterized in that: The water gauge (1) is made of stainless steel, and the side wall of the water gauge (1) is provided with scale lines.

5. The millimeter wave radar type digital water gauge according to claim 2, characterized in that: The elastic member (9) is made of rubber.

6. The millimeter wave radar type digital water gauge according to claim 3, characterized in that: The power supply device (5) is a solar cell panel.

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