Farmland liquid level meter
By installing a compact farmland level gauge on the field ridge, using a non-contact level sensor and solar power, the problems of existing farmland level gauges being large in size, interfering with agricultural machinery operations, and expensive are solved, achieving low-cost and accurate field level monitoring.
Patent Information
- Application Number
- CN202423194011.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing farmland level gauges are difficult to widely promote in smart agriculture due to their large footprint, interference with agricultural machinery operations, and high price.
A compact farmland level gauge was designed, comprising a porous tube, a pole, a filter layer, a waterproof housing, a level sensor, a data acquisition and communication module, and a power supply system. It employs a non-contact level sensor such as an ultrasonic, radar, or laser level sensor, combined with solar power, and is installed on the field ridge. It uses a timed wake-up mechanism to save energy and features a waterproof design and temperature monitoring function.
It enables accurate monitoring of field liquid levels without occupying arable land or affecting agricultural machinery operations, reducing costs and making it suitable for large-scale promotion and use.
Smart Images

Figure CN223500476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural environmental monitoring, and in particular to a farmland liquid level gauge. Background Technology
[0002] Farmland slurry level monitoring is an indispensable technological means in the development of smart agriculture, and it is of great significance for grasping the real-time slurry status in the field and supporting irrigation decision-making. However, the slurry level gauges currently used in smart agriculture projects are often difficult to promote due to their large footprint, interference with farm machinery operations, and high cost. Therefore, there is an urgent need to develop an energy-saving, compact, and easy-to-install farmland slurry level gauge that can be installed on farmland ridges, accurately monitoring the field slurry level without affecting farm machinery operations. Summary of the Invention
[0003] Purpose of the invention: The purpose of this utility model is to provide a farmland level gauge that can be installed on farmland ridges and accurately monitor the liquid level in the field.
[0004] Technical Solution: This utility model discloses a farmland liquid level gauge, comprising a porous tube, a vertical pole, a filter layer, a waterproof shell, a liquid level sensor, a data acquisition and communication module, a water guide strip, and a power supply system. The porous tube has a sealing cap at the bottom and at least one evenly distributed opening on the tube body, and is externally wrapped with the filter layer. The top of the porous tube is connected to the vertical pole, the top of the vertical pole penetrates the waterproof shell, and the data acquisition and communication module is installed inside the waterproof shell. The power supply system and the data acquisition and communication module are electrically connected, and the data acquisition and communication module is electrically connected to the liquid level sensor. There is at least one water guide strip, which is fixed to the outside of the filter layer.
[0005] Furthermore, the power supply system includes a solar panel, a charge / discharge control module, and a battery. The solar panel is installed on the top of the waterproof housing, and the charge / discharge control module and battery are installed inside the waterproof housing. The wires of the solar panel pass through the waterproof housing and are connected to the charge / discharge control module. The charge / discharge control module is connected to the battery and the data acquisition and communication module, respectively. The battery is electrically connected to the liquid level sensor.
[0006] Furthermore, the level sensor is a non-contact level sensor.
[0007] Preferably, the liquid level sensor is an ultrasonic liquid level sensor, a radar liquid level sensor, or a laser liquid level sensor.
[0008] Furthermore, the liquid level sensor is a pressure-type liquid level sensor.
[0009] Furthermore, the bottom sealing cap of the porous tube has a support column inside and a spring with a height greater than the support column, and the spring is sleeved on the outside of the support column.
[0010] Furthermore, the bottom sealing cap of the porous tube has a V-shaped fixing claw on its outer side.
[0011] Furthermore, the water guide strip is a single-strand or multi-strand absorbent cotton rope.
[0012] Furthermore, the acquisition and communication module adopts a timed wake-up mechanism and goes into sleep mode during idle periods to save energy.
[0013] Furthermore, the data acquisition and communication module is equipped with a relay, a voltage monitoring sensor, and a temperature sensor.
[0014] Furthermore, the bottom of the waterproof housing has two holes: one is an air inlet with a waterproof vent valve, and the other is an exhaust port with a miniature fan installed. The miniature fan is electrically connected to the relay of the data acquisition and communication module.
[0015] Beneficial effects: Compared with the prior art, the present invention has the following advantages: (1) The present invention is lightweight and compact, and can be directly installed on the ridges of farmland, avoiding the occupation of cultivated land and affecting the operation of agricultural machinery, while accurately monitoring the liquid level in the field. (2) The present invention has low power consumption, low cost, simple installation, and low cost of use and installation, which solves the problem that the existing farmland liquid level gauges cannot be widely used due to their high price. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings.
[0018] This utility model provides a farmland liquid level gauge, such as... Figure 1 As shown, the system includes a porous tube 1, a support pole 2, a filter layer 3, a waterproof shell 4, a pressure-type liquid level sensor 5, a data acquisition and communication module 6, a solar panel 7, a charge / discharge control module 8, a battery 9, and a water guide strip 10. The porous tube 1 has a sealed cap at the bottom and at least one evenly distributed opening on the tube body. It is wrapped with the filter layer 3. The top of the porous tube 1 is rigidly connected to the support pole 2. The top of the support pole 2 passes through the waterproof shell 4. The data acquisition and communication module 6, the liquid level sensor 5, the charge / discharge control module 8, and the battery 9 are installed inside the waterproof shell 4. The solar panel 7 is installed on the top of the waterproof shell 4. The wires of the solar panel 7 pass through the waterproof shell 4 and are connected to the charge / discharge control module 8. The charge / discharge control module 8 is connected to the battery 9 and the data acquisition and communication module 6, respectively. The battery 9 is connected to the pressure-type liquid level sensor 5 and the miniature fan 15, respectively. There is at least one water guide strip 10, which is fixed to the outside of the filter layer 3.
[0019] To prevent soil from entering the bottom of the porous pipe 1 and interfering with the liquid level monitoring of the liquid level sensor 5, there is a support column 11 inside the bottom sealing cap of the porous pipe 1, and a spring 12 with a height greater than the support column. The spring 12 is sleeved on the outside of the support column 11.
[0020] To ensure that the porous tube 1 can be more stably fixed in the soil, the bottom sealing cap of the porous tube 1 has a V-shaped fixing claw 13 on the outside.
[0021] To accelerate the water layer balancing process inside and outside the porous pipe 1, the water guide strip 10 is a single-strand or multi-strand absorbent cotton rope.
[0022] To achieve low-power operation of the device, the data acquisition and communication module 6 adopts a timed wake-up mechanism and goes into sleep mode when idle to save energy.
[0023] To ensure the stable and safe operation of the internal modules of the waterproof housing 4 in a high-temperature environment, the bottom of the waterproof housing 4 has two holes. One hole is an air inlet with a waterproof vent valve 14, and the other hole is an exhaust hole with a miniature fan 15 installed.
[0024] To ensure the stable and safe operation of all modules inside the waterproof housing 4 in a high-temperature environment, the data acquisition and communication module 6 is equipped with a relay, a voltage monitoring sensor, and a temperature sensor. The relay controls the miniature fan 15, the voltage monitoring sensor monitors the power level of the battery 9, and the temperature sensor monitors the air temperature inside the waterproof housing. When the voltage monitoring sensor detects that the power level of the battery 9 is higher than the set power protection threshold, and the air temperature measured by the temperature sensor is higher than the set heat dissipation threshold, the relay is activated to turn on the miniature fan 15 to dissipate heat and cool down each module.
Claims
1. A farmland liquid level gauge, characterized in that, The system includes a porous tube (1), a support pole (2), a filter layer (3), a waterproof shell (4), a liquid level sensor (5), a data acquisition and communication module (6), a water guide strip (10), and a power supply system. The porous tube (1) has a sealed cap at the bottom and one or more openings evenly distributed on the tube body. The filter layer (3) is wrapped around the outside. The top of the porous tube (1) is connected to the support pole (2). The top of the support pole (2) passes through the waterproof shell (4). The data acquisition and communication module (6) is installed inside the waterproof shell (4). The power supply system and the data acquisition and communication module (6) are electrically connected. The data acquisition and communication module (6) is electrically connected to the liquid level sensor (5). There is at least one water guide strip (10). The water guide strip (10) is fixed to the outside of the filter layer (3).
2. The farmland liquid level gauge according to claim 1, characterized in that, The power supply system includes a solar panel (7), a charge / discharge control module (8), and a battery (9). The solar panel (7) is installed on the top of the waterproof housing (4). The charge / discharge control module (8) and the battery (9) are installed inside the waterproof housing (4). The wires of the solar panel (7) pass through the waterproof housing (4) and are connected to the charge / discharge control module (8). The charge / discharge control module (8) is connected to the battery (9) and the data acquisition and communication module (6) respectively.
3. The farmland liquid level gauge according to claim 1, characterized in that, The liquid level sensor (5) is a non-contact liquid level sensor.
4. The farmland liquid level gauge according to claim 1, characterized in that, The liquid level sensor (5) is a pressure-type liquid level sensor.
5. The farmland liquid level gauge according to claim 1, characterized in that, The bottom sealing cap of the porous tube (1) has a support column (11) inside and a spring (12) with a height greater than the support column (11). The spring (12) is sleeved on the outside of the support column (11).
6. The farmland liquid level gauge according to claim 1, characterized in that, The bottom sealing cap of the porous tube has a V-shaped fixing claw (13) on the outside.
7. The farmland liquid level gauge according to claim 1, characterized in that, The water guide strip (10) is a single-strand or multi-strand absorbent cotton rope.
8. The farmland liquid level gauge according to claim 1, characterized in that, The acquisition and communication module (6) adopts a timed wake-up mechanism and goes into sleep mode during idle time to save energy.
9. The farmland liquid level gauge according to claim 1, characterized in that, The data acquisition and communication module (6) is equipped with a relay, a voltage monitoring sensor, and a temperature sensor.
10. The farmland liquid level gauge according to claim 9, characterized in that, The waterproof housing (4) has two holes at the bottom. One hole is an air inlet with a waterproof vent valve (14) and the other hole is an exhaust hole with a miniature fan (15) installed. The miniature fan (15) is electrically connected to the relay of the data acquisition and communication module (6).