CN111174873A - Photoelectric wireless paddy field water level sensor - Google Patents
Photoelectric wireless paddy field water level sensor Download PDFInfo
- Publication number
- CN111174873A CN111174873A CN202010083370.1A CN202010083370A CN111174873A CN 111174873 A CN111174873 A CN 111174873A CN 202010083370 A CN202010083370 A CN 202010083370A CN 111174873 A CN111174873 A CN 111174873A
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- water inlet
- water level
- paddy field
- light path
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims description 8
- 239000003621 irrigation water Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012271 agricultural production Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention belongs to the technical field of water level detection, and relates to a photoelectric wireless paddy field water level sensor. The method comprises the following steps: the device comprises a cylinder cover, a support body, a control cabin body, a light path cylinder body and a water inlet body; the cylinder cover is positioned at the upper part of the control cabin body; the supporting body is connected with the side edge of the control bin body; the middle part of the control bin body is provided with a light path barrel channel, and the rear side of the control bin body is provided with a sensor circuit board; the first end of the light path cylinder is connected with the laser emitter, and the second end of the light path cylinder is connected and communicated with the top of the water inlet body; the sensor circuit board is electrically connected with the antenna, the battery, the laser emitter, the light receiver and the switch; the water inlet body is provided with a filter membrane, the bottom of the water inlet body is provided with a light receiving body which is in coaxial sight with the laser emitter, and light rays enable light intensity to be changed through different water depths so as to obtain the current water level. The invention has the advantages of low cost, simple installation and good reliability, and is suitable for online water level monitoring in agricultural production.
Description
Technical Field
The invention belongs to the technical field of water level detection, and relates to a photoelectric wireless paddy field water level sensor.
Background
The water level of a paddy field is one of important factors influencing agricultural production, different crops have different tolerance degrees on irrigation water, once the tolerance range of the crops is exceeded, normal growth of the crops is inhibited slightly, yield is reduced, and the crops die seriously. Therefore, the accurate real-time mastery of the water level data of the paddy field has important significance for agricultural production practice. Through the online real-time monitoring of the water level of the paddy field, farmers can be guided to irrigate reasonably, so that water resources are effectively utilized, and the purpose of high yield of crops is achieved.
Most of water level sensors on the market generally have the problems of large power consumption, high cost, low automation degree and the like, are not suitable for long-term work in the field, and the actual application effect in the field of farmland water level monitoring needs to be improved. Based on the technical scheme, the photoelectric wireless paddy field water level sensor has the advantages of low power consumption, long service life, stable operation, real-time and accurate data transmission and the like, can realize on-line monitoring of the water level and meet the actual production requirement, and has a good application prospect.
Disclosure of Invention
Based on the above, the invention aims to provide a photoelectric wireless paddy field water level sensor which can be applied to agriculture and has low cost, low power consumption, good timeliness, convenient installation and long-distance multipoint wireless communication.
The technical scheme of the invention is as follows:
the wireless paddy field level sensor of photoelectric type, it is arranged in detecting the water level of irrigation water in the paddy field, includes: the device comprises a cylinder cover, a support body, a control cabin body, a light path cylinder body and a water inlet body; the cylinder cover is positioned at the upper part of the control cabin body; the supporting body is connected with the side edge of the control bin body; the middle part of the control bin body is provided with a light path barrel channel; the first end of the light path cylinder is connected with the laser emitter, and the second end of the light path cylinder is connected and communicated with the top of the water inlet body; the water inlet body is provided with a filter membrane, the bottom of the water inlet body is provided with a light receiving body which is in coaxial sight with the laser emitter, and light rays enable light intensity to be changed through different water depths so as to obtain the current water level.
The upper portion of the barrel cover is provided with a concave portion, the antenna, the level meter and the switch are embedded into the concave portion, the lower portion of the barrel cover is connected with the bidirectional spiral connector, the laser emitter is arranged in the bidirectional spiral connector, and a wiring groove is formed in the outer ring of the bidirectional spiral connector and facilitates wiring.
The support body comprises a ground plug, a cross rod, a steering knuckle and a butterfly nut, cross rod threads are formed in the cross rod, and the ground plug and the cross rod can be matched with the steering knuckle to rotate up and down and move back and forth and are fixed by the butterfly nut; the ground plug top is also provided with a ground plug dome for facilitating plugging and unplugging; the steering knuckle is in a cylindrical shape, through holes are formed in two pairs of side faces, and regular hexagonal grooves are respectively chiseled in two sides of the interior of the remaining pair of side faces and used for fixing nuts; the nut is matched with the butterfly nut.
The battery cabin for installing batteries is arranged on the front side of the control cabin body, the sensor circuit board is arranged on the rear side of the control cabin body, the threaded boss is arranged on the inner wall of the control cabin body and communicated with the jack reserved on the outer wall of the control cabin body, and the bottom of the control cabin body is connected with the handle.
The sensor circuit board is fixed by two pairs of positioning sheets and is electrically connected with the antenna, the battery, the laser emitter, the light receiver and the switch; the sensor circuit board carries a microcontroller.
The first end of the light path cylinder body is provided with an air pressure balance hole, and the side edge of the light path cylinder body is provided with a wiring through hole.
The water inlet body comprises a first water inlet part, a second water inlet part, an upper pressing plate, a lower pressing plate and a bottom cover; the first water inlet part and the second water inlet part are both provided with two symmetrical wiring holes, and an upper filter membrane is clamped between the two water inlet parts for filtering; a shading sheet is arranged in the second water inlet part and used for blocking external light; the inner rings of the upper pressure plate and the lower pressure plate are both provided with water filtering holes with the number larger than 1, the outer ring is provided with paired positioning matching buckles, and a lower filter membrane is clamped between the two pressure plates for blocking particles; the bottom is used for separating soil, and a waterproof cap is arranged inside and connected with the bottom of the light receiving body.
The top of the platform of the first water inlet part and the second water inlet part is provided with a wiring through hole, and the side edge of the platform is provided with buckles and buckle grooves which are matched with the same number and are more than 2 and used for buckling the filter membrane; the platform-shaped conical surface is provided with an upper water inlet hole and a lower water inlet hole which are more than 1 in number respectively, and the platform top of the first water inlet part is connected with the internal spline of the top of the second water inlet part.
And a condensing lens is arranged in a small hole at the top of the spiral joint.
Preferably, the top end of the light path cylinder is provided with an infrared laser light emitting diode with 650nm wavelength, the light path directly penetrates to the photodiode arranged at the bottom through air and water, and the corresponding water level relation is obtained after calibration according to the attenuation degree of the light path in two media.
Preferably, the antenna can be used for carrying out multipoint wireless communication and finally uploading the data to a target server for storage.
Preferably, the wireless transmission is narrowband internet of things wireless transmission.
Preferably, the nylon filter membrane is clamped between the outer water filtering body and the inner water filtering body of the conical water filter, the steel wire mesh and the nylon filter membrane are clamped between two cylindrical structures contained at the bottom of the conical water filter, and the conical top is connected with the bottom of the light path cylinder.
In conclusion, the beneficial effects of the invention are as follows:
1. the whole sensor has compact structural design, is not easy to damage and has small disturbance to crops;
2. the installation is simple, the plug and play is realized, a user can automatically level the water surface according to the level gauge at the top of the sensor, the use is simple, and the requirement on the user is not high;
3. a plurality of sensors can automatically establish a transmission network when used simultaneously, so that the data transmission distance is increased;
4. the sensor can monitor the water level of 0-290mm height, and can meet the use requirements of most agricultural fields.
Drawings
Fig. 1 is a perspective view schematically illustrating an embodiment of the present invention.
Fig. 2 is an exploded view of the water level sensor shown in fig. 1.
Fig. 3 is an exploded installation schematic view of the bottom water inlet body of the present invention.
Fig. 4 is a schematic perspective view of the middle control cabin body of the present invention.
FIG. 5 is an isometric cross-sectional view of a bottom water intake of the present invention.
Fig. 6 is an isometric cross-sectional view of a support body of the invention.
In the figure: 1. an antenna; 2. a level gauge; 3. a cylinder cover; 4. controlling the bin body; 5. a grip; 6. a light path cylinder; 7. a water inlet body; 8. a bottom cover; 9. inserting the ground; 10. a cross bar; 11. a knuckle; 12. a butterfly nut; 13. a ground insertion dome; 14. a laser emitter; 15. a bidirectional screw joint; 16. a wiring groove; 17. a wiring through hole; 18. an air pressure balancing hole; 19. a battery; 20. a jack; 21. routing through holes; 22. an upper water inlet hole; 23. a lower water inlet hole; 24. an upper pressure plate; 25. a lower pressing plate; 26. a waterproof cap; 27. a light receiving body; 28. a screw joint; 29. water filtering holes; 30. a lower filter membrane; 31. a wiring hole; 32. buckling; 33. an upper filter membrane; 34. an internal spline; 35. a fastening groove; 36. positioning plates; 37. a sensor circuit board; 38. a microcontroller; 39. a threaded boss; 40. a shading sheet; 41. positioning a matching buckle; 42. a condenser lens; 43. a nut; 44. the cross bar is threaded.
Detailed Description
Embodiments of the present invention will now be described in detail with reference to the accompanying fig. 1-6, and the invention will be further explained in detail.
The wireless paddy field level sensor of photoelectric type, it is arranged in detecting the water level of irrigation water in the paddy field, includes: the device comprises a barrel cover 3, a support body, a control cabin body 4, a light path barrel body 6 and a water inlet body 7; the barrel cover 3 is positioned at the upper part of the control cabin body 4; the supporting body is connected with the side edge of the control cabin body 4; the middle part of the control bin body 4 is provided with a light path barrel body 6 channel; the first end of the light path cylinder 6 is connected with the laser emitter 14, and the second end of the light path cylinder is connected and communicated with the top of the water inlet body 7; the water inlet body 7 is provided with a filter membrane, the bottom of the water inlet body is provided with a light receiving body 27 which is in coaxial sight with the laser emitting body 14, and light rays change light intensity through different water depths to obtain the current water level.
The upper portion of the barrel cover 3 is provided with a concave portion, the antenna 1, the level gauge 2 and the switch are embedded into the concave portion, the lower portion of the barrel cover is connected with the bidirectional spiral connector 15, the laser emitter 14 is arranged in the bidirectional spiral connector 15, and a wiring groove 16 is formed in the outer ring of the bidirectional spiral connector 15 and facilitates wiring.
The support body comprises a ground insert 9, a cross rod 10, a steering knuckle 11 and a wing nut 12, cross rod threads 44 are formed on the cross rod 10, and the ground insert 9 and the cross rod 10 can be matched with the steering knuckle 11 to move up and down and back and forth in a rotating mode and are fixed by the wing nut 12; the top of the ground plug 9 is also provided with a ground plug dome 13 for facilitating plugging and unplugging; the steering knuckle 11 is similar to a cylinder, wherein two pairs of side surfaces are provided with through holes, and two sides of the inside of the remaining pair of side surfaces are respectively provided with a regular hexagonal groove for fixing the nut 43; the nut 43 is mated with the wing nut 12.
The front side of the control cabin body 4 is provided with a battery cabin provided with batteries 19, the rear side is provided with a sensor circuit board 37, the inner wall is provided with a thread boss 39 communicated with the jack 20 reserved on the outer wall, and the bottom is connected with the handle 5.
The sensor circuit board 37 is fixed by two pairs of positioning sheets 36 and is electrically connected with the antenna 1, the battery 19, the laser emitter 14, the light receiver 27 and the switch; the sensor circuit board carries a microcontroller 38.
The first end of the light path cylinder 6 is provided with an air pressure balance hole 18, and the side edge is provided with a wiring through hole 17.
The water inlet body 7 comprises a first water inlet part, a second water inlet part, an upper pressing plate 24, a lower pressing plate 25 and a bottom cover 8; the first water inlet part and the second water inlet part are both provided with two symmetrical wiring holes 31, and an upper filter membrane 33 is clamped between the two water inlet parts for filtering; a shading sheet 40 is arranged in the second water inlet part and used for blocking external light; the inner rings of the upper pressure plate 24 and the lower pressure plate 25 are both provided with water filtering holes 29 with the number larger than 1, the outer rings are provided with paired positioning matching buckles 41, and a lower filter membrane 30 is clamped between the two pressure plates for blocking particles; the bottom cover 8 is used for separating soil, and a waterproof cap cover 26 is arranged inside and connected with the bottom of the light receiving body 27.
The top of the platform of the first water inlet part and the second water inlet part is provided with a wiring through hole 21, and the side edge of the platform is provided with buckles 32 and buckle grooves 35 which are matched with the same number and are more than 2 and used for buckling the filter membrane; the truncated cone is provided with an upper water inlet hole 22 and a lower water inlet hole 23 with the number larger than 1 respectively, and the top of the first water inlet part is connected with the internal spline 34 at the top of the second water inlet part.
And a condensing lens 42 is arranged in a small hole at the top of the spiral connector 28.
The photoelectric wireless paddy field water level sensor comprises the following steps:
a, vertically inserting a ground jack 9 into a position to be measured and reinforcing the ground jack;
loosening the butterfly nut 12 fixedly inserted with the plug 9, adjusting the zero scale water level line to be flush with the ground, and then screwing the butterfly nut 12;
c, loosening the butterfly nut 12 of the fixed cross rod 10, adjusting the position of the sensor until the level meter 2 is placed at the zero position, and tightening the butterfly nut 12;
d, opening a top switch, and starting the sensor to work;
e, the remote computer sends a monitoring command to the microcontroller 38;
f, starting the laser emitter 14;
g, the laser emitted by the laser emitter 14 is transmitted to the light receiving body 27 through the light path cylinder 6, and the light receiving body 27 feeds back the detection value to the microcontroller 38;
h, repeating the steps f-g, and detecting the water level for multiple times;
i, after the microcontroller 38 processes the data by algorithm, the water level value is generated to a remote computer through a wireless module, and meanwhile, the laser emitter 14 is closed;
and j, setting sampling interval time as required, and repeating the steps f to i to realize real-time monitoring of data.
In the invention, the principle of the sensor is as follows: the 650nm laser light emitting diode arranged at the top end of the light path cylinder emits light, the light passes through the air, the water body is condensed by the lens and then is emitted into the photodiode arranged at the bottom of the water inlet body, when the water level in the paddy field changes, the water level depth changes in the light path cylinder, the depth of two media through which the light passes changes, the attenuation degree of the light in the media changes, two ends of the illuminated photodiode can generate 0-500mV voltage signals, the signals are input into the microcontroller and amplified to obtain a corresponding water level relation, and the signals are sent to the remote server end through the wireless transmission module to be processed and displayed.
The embodiments described above with reference to the drawings are illustrative only and should not be construed as limiting the invention; it would be appreciated by those skilled in the art that changes may be made in this embodiment without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (8)
1. Wireless paddy field level sensor of photoelectric type, its water level that is arranged in detecting irrigation water in the paddy field, its characterized in that includes: the device comprises a cylinder cover (3), a support body, a control cabin body (4), a light path cylinder body (6) and a water inlet body (7); the barrel cover (3) is positioned at the upper part of the control cabin body (4); the supporting body is connected with the side edge of the control cabin body (4); the middle part of the control cabin body (4) is provided with a light path barrel body (6) channel; the first end of the light path cylinder (6) is connected with the laser emitter (14), and the second end of the light path cylinder is connected and communicated with the top of the water inlet body (7); the water inlet body (7) is provided with a filter membrane, the bottom of the water inlet body is provided with a light receiving body (27) which is in coaxial sight with the laser emitter (14), and light rays change light intensity through different water depths to obtain the current water level.
2. The photoelectric wireless paddy field water level sensor according to claim 1, wherein: the upper part of the cylinder cover (3) is provided with a concave part, and the antenna (1), the level meter (2) and the switch are embedded into the concave part.
3. The photoelectric wireless paddy field water level sensor according to claim 1, wherein: the support body comprises a ground insert (9), a cross rod (10) and a steering knuckle (11), wherein the ground insert (9) and the cross rod (10) can be matched with the steering knuckle (11) to move in a rotating mode.
4. The photoelectric wireless paddy field water level sensor according to claim 1, wherein: the control cabin body (4) is internally provided with a battery cabin provided with a battery (19), and the rear side of the control cabin body is provided with a sensor circuit board (37).
5. The photoelectric wireless paddy field water level sensor according to claim 4, wherein: the sensor circuit board (37) is electrically connected with the antenna (1), the battery (19), the laser emitter (14), the light receiver (27) and the switch.
6. The photoelectric wireless paddy field water level sensor according to claim 1, wherein: and the first end of the light path cylinder (6) is provided with an air pressure balance hole (18).
7. The photoelectric wireless paddy field water level sensor according to claim 1, wherein: the water inlet body (7) comprises a first water inlet part and a second water inlet part, and a filter membrane is clamped between the first water inlet part and the second water inlet part for filtering.
8. The photoelectric wireless paddy field water level sensor according to claim 7, wherein: the first water inlet part and the second water inlet part are provided with water inlet holes with the number larger than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010083370.1A CN111174873B (en) | 2020-02-09 | Photoelectric wireless paddy field water level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010083370.1A CN111174873B (en) | 2020-02-09 | Photoelectric wireless paddy field water level sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111174873A true CN111174873A (en) | 2020-05-19 |
| CN111174873B CN111174873B (en) | 2024-07-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201731911U (en) * | 2009-08-05 | 2011-02-02 | 陈云钦 | Laser liquid level sensor optical system |
| CN103822690A (en) * | 2013-12-10 | 2014-05-28 | 河海大学 | Infrared water level measurement device and measurement method thereof |
| JP2014145756A (en) * | 2013-01-07 | 2014-08-14 | Kitazawa Gijutsu Jimusho Kk | Laser type level meter |
| CN211147804U (en) * | 2020-02-09 | 2020-07-31 | 江西农业大学 | Photoelectric wireless paddy field water level sensor |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201731911U (en) * | 2009-08-05 | 2011-02-02 | 陈云钦 | Laser liquid level sensor optical system |
| JP2014145756A (en) * | 2013-01-07 | 2014-08-14 | Kitazawa Gijutsu Jimusho Kk | Laser type level meter |
| CN103822690A (en) * | 2013-12-10 | 2014-05-28 | 河海大学 | Infrared water level measurement device and measurement method thereof |
| CN211147804U (en) * | 2020-02-09 | 2020-07-31 | 江西农业大学 | Photoelectric wireless paddy field water level sensor |
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