CN113375761A - Automatic water level detection device - Google Patents
Automatic water level detection device Download PDFInfo
- Publication number
- CN113375761A CN113375761A CN202110828229.4A CN202110828229A CN113375761A CN 113375761 A CN113375761 A CN 113375761A CN 202110828229 A CN202110828229 A CN 202110828229A CN 113375761 A CN113375761 A CN 113375761A
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- China
- Prior art keywords
- laser
- water level
- water pipe
- receiving unit
- transparent
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000009434 installation Methods 0.000 claims abstract description 43
- 230000008901 benefit Effects 0.000 abstract description 6
- 239000003651 drinking water Substances 0.000 description 10
- 235000020188 drinking water Nutrition 0.000 description 10
- 244000144972 livestock Species 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000003894 drinking water pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
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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
- G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention provides an automatic water level detection device which comprises a laser emitting unit, a laser receiving unit, a circuit interface and a transparent water pipe. The laser emitting unit and the laser receiving unit are respectively positioned on two sides of the position of the non-central line of the cross section of the transparent water pipe. When the water level in the transparent water pipe does not reach the installation position of the device, the laser emitted by the laser emitting unit reaches the laser receiving unit after passing through the transparent water pipe. When the laser receiving unit receives the laser, the signal output end P2 is at low level, which indicates that the water level does not reach the installation position of the device. When the water level reaches or is higher than the installation position of the device, laser is injected into the water in the transparent water pipe in a non-vertical mode, and the laser is refracted and deviates from the laser path in the absence of water. The laser receiving unit does not receive the laser light, and the signal output terminal P2 outputs a high level indicating that the water level has reached the installation position of the apparatus. The invention realizes the automatic detection of the water level by utilizing the refraction principle of light, and has the advantages of stability, reliability, simple structure, simple and convenient installation and low cost.
Description
Technical Field
The invention relates to the technical field of water level detection, in particular to an automatic water level detection device.
Background
The method improves the agricultural quality benefit and competitiveness, strengthens agricultural science and technology and equipment support, builds intelligent agriculture, and is an important measure for implementing strategic deployment of digital China, digital villages and the like. In the agricultural automation process, the requirement on the automation level of the livestock breeding industry is higher and higher. The guarantee of the livestock drinking water is the key of the breeding industry, but the water level detection of the livestock drinking water has certain defects at present.
In the traditional method, a water level indicator of drinking water of the livestock is manually checked, so that the water shortage risk of the livestock is high. In order to solve the problem, at present, there are many automatic water level detection technologies, such as ultrasonic water level detection, capacitive water level detection, electrode water level detection, and the like. However, these methods have problems of low detection reliability, high cost, inconvenience in installation, or the need to insert electrodes into water of drinking water for livestock and poultry. Therefore, the invention is stable and reliable, has low cost and convenient installation, and is very important for the water level automatic detection device which is convenient for upgrading and reconstructing the existing culture places.
Disclosure of Invention
The invention aims to provide an automatic water level detection device to solve the problem of detection of the water level of livestock drinking water in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic water level detection device comprises a laser emitting unit, a laser receiving unit, a circuit interface and a transparent water pipe. Wherein, laser emission unit and laser receiving unit are located the both sides of transparent water pipe respectively, are the distance setting.
When the water level in the transparent water pipe does not reach the installation position of the device, the laser emitted by the laser emitting unit reaches the laser receiving unit after passing through the transparent water pipe. When the device is installed in the transparent water pipe, the laser emitted by the laser emitting unit is refracted when passing through the transparent water pipe, and the laser cannot reach the laser receiving unit.
In a preferred embodiment of the present invention, the laser emitting unit and the laser receiving unit are located at positions where the cross section of the transparent water pipe deviates from the center line.
As a preferred embodiment of the present invention, when the water level in the transparent water pipe does not reach the device installation position, the laser emitted by the laser emitting unit passes through the transparent water pipe and then reaches the laser receiving unit; the laser receiving unit receives the laser, and the signal output end P2 outputs low level, which indicates that the water level does not reach the installation position of the device.
As a preferred embodiment of the present invention, when the water level in the transparent water pipe reaches or is higher than the device installation position, the laser light emitted from the laser emitting unit is emitted into the water in the transparent water pipe in a non-perpendicular manner, and the laser light is refracted. The laser deviates from the laser path in the absence of water after passing through the transparent water pipe, and the laser receiving unit cannot receive the laser. The laser receiving unit does not receive the laser, and the signal output end P2 outputs high level, indicating that the water level has reached the installation position of the device.
Compared with the prior water level detection technology, the invention has the following beneficial effects:
the automatic water level checking device utilizes the refraction principle of light, and is stable and reliable. This device simple structure, low cost can the direct mount on the existing transparent water level of plant shows the water pipe, need not to insert electrode detection or carry out other transformation, and the simple installation is favorable to the automation, the intelligent upgrading popularization of breed trade.
Drawings
The features, objects, advantages and benefits of the present invention will become more apparent upon reading the detailed description of the preferred embodiments that follow. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Like reference symbols in the various drawings indicate like elements throughout.
In the drawings: fig. 1 is an overall structural view and an installation schematic view of an automatic water level detection device according to an embodiment of the present invention.
Fig. 2 is a sectional view taken along line a-a when the water level in the transparent water pipe in the automatic water level detecting apparatus according to the embodiment of the present invention does not reach the installation position of the apparatus.
Fig. 3 is a schematic circuit diagram illustrating a state where the water level in the transparent water pipe in the automatic water level detecting apparatus according to the embodiment of the present invention does not reach the installation position of the apparatus.
Fig. 4 is a sectional view taken along line a-a when the water level in the transparent water pipe reaches or exceeds the installation position of the automatic water level detection apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic circuit diagram illustrating a state in which the water level in the transparent water pipe of the automatic water level detection apparatus according to the embodiment of the present invention reaches or is higher than the installation position of the apparatus.
The reference numerals are explained below.
100-automatic water level detection device; 101-a laser emitting unit; 102-a laser receiving unit; 103-laser path when the water level in the transparent water pipe does not reach the installation position of the detection device; 104-laser refraction path when water level in the transparent water pipe reaches the installation position of the detection device; 110-a circuit interface unit; 120-a laser emission control unit; 200-transparent water pipe; 201-the state when the water level in the transparent water pipe does not reach the installation position of the detection device; 202-state when the water level in the transparent water pipe reaches the installation position of the detection device.
Detailed Description
To further clarify the objects, features and advantages of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
As described in the background art, the existing livestock drinking water detection in the farm has certain defects, mainly including low accuracy of water level detection, high detection cost, or difficult construction and drinking water pollution caused by the need of inserting electrodes into the water level display pipe of the drinking water.
In order to solve the problems, the invention provides an automatic water level detection device by utilizing the principle that laser can be refracted when being injected into water in a non-vertical mode. When the water level in the transparent water pipe does not reach the device installation position, the laser emitted by the laser emitting unit reaches the laser receiving unit after passing through the transparent water pipe. The laser unit outputs a low level indicating that the water level is lower than the installation position of the device. When the water level in the transparent water pipe reaches the installation position of the device, the laser emitted by the laser emitting unit is emitted into the water level in the transparent water pipe in a non-vertical mode, and the laser is refracted and deviates from a laser path in the absence of water. The laser receiving unit can not receive the laser and outputs high level, which indicates that the water level in the transparent water pipe reaches the installation position of the detection device.
As an implementation, please refer to fig. 1-4.
Fig. 1 schematically shows an overall installation diagram and a structural diagram of an automatic water level detection apparatus according to an embodiment of the present invention. The automatic water level detection device provided by the embodiment of the invention comprises: the laser emitting unit, the laser receiving unit, the circuit interface and the transparent water pipe.
The detection device is arranged on the periphery of the transparent water pipe for displaying the livestock drinking water, does not need to contact the drinking water, and avoids pollution to the livestock drinking water. The power supply and the signal output of the device are led out through a circuit interface.
Fig. 2 schematically shows a cross-sectional view at the device a-a when the water level in the transparent water pipe has not reached the detection device installation position. The laser emitting unit and the receiving unit are positioned on two sides of the transparent water pipe and deviate from the position of the center line of the section. Although the laser emitted by the laser emitting unit is refracted when the laser enters the transparent water pipe in a non-vertical mode, the laser is also refracted when the laser exits the transparent water pipe, and finally the laser emitted by the laser emitting unit almost reaches the laser receiving unit in a linear mode.
Fig. 3 is a schematic circuit diagram showing that when the water level in the transparent water pipe does not reach the automatic detection device, the laser emitted by the laser emitting unit directly reaches the laser receiving unit. When the water level in the transparent water pipe does not reach the installation position of the device, the laser receiving unit receives laser, and the signal output end P2 is at a low level and indicates that the current water level is lower than the installation position of the device.
Fig. 4 schematically shows a cross-section at the device a-a when the water level in the transparent water pipe reaches or is above the installation position of the device. The laser emitted by the laser emitting unit is refracted when being emitted into the water surface in the transparent water pipe in a non-vertical mode, the laser deviates from the laser road strength when no water exists, and the laser receiving unit cannot receive the laser.
Fig. 5 is a schematic circuit diagram schematically showing a laser path in which the laser emitted from the laser emitting unit is refracted to deviate from the laser path in the absence of water when the water level in the transparent water pipe reaches or exceeds the installation position of the device. When the water level in the transparent water pipe reaches or is higher than the installation position of the device, the laser receiving unit cannot receive the laser emitted by the laser emitting unit, and the signal output end P2 is at a high level, which indicates that the current water level reaches or is higher than the installation position of the device.
The device of the present invention can also detect when there is a non-transparent liquid in the transparent water tube. When the non-transparent liquid does not reach the installation position of the device, the laser receiving unit receives the laser emitted by the laser emitting unit. When the non-transparent liquid reaches or is higher than the installation position of the device, the laser emitted by the laser emitting unit cannot penetrate through the non-transparent liquid or refract, and the laser receiving units cannot receive the laser, which indicates that the liquid in the transparent water pipe reaches or is higher than the installation position of the device.
In order to prolong the working time of the device, the laser transmitting and receiving unit can work in an intermittent and discontinuous mode. For example, the detection period is 1 second, and the on time of laser emission and laser detection is 10 milliseconds, then the device is in the off state 99% of the time in the detection period. The operating state of the laser emitting unit may be controlled by the P1 terminal in fig. 2 and 3, or by the power supply VCC.
The power ends, the ground end, the control end P1 and the signal output end P2 of the laser emitting unit and the laser receiving unit in the device are led out through circuit interfaces.
The automatic water level checking device is stable and reliable, simple in structure, low in cost, simple and convenient to install, and beneficial to automatic and intelligent upgrading and transformation of the breeding industry.
The foregoing has described the general principles, essential features and advantages of the invention, which is not limited to the details of the above-described exemplary embodiments. It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments are thus exemplary, not limiting. The scope of the invention should be determined by the appended claims, and any reference signs shall not be construed as limiting the scope of the claims.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. The water level detection device is characterized in that the device (100) comprises a laser emitting unit (101), a laser receiving unit (102), a circuit interface (110) and a transparent water pipe (200), wherein the laser emitting unit (101) and the laser receiving unit (102) are respectively positioned on two sides of the transparent water pipe (200) and are arranged at a distance;
when the water level in the transparent water pipe (200) does not reach the installation position of the device (100), the laser (103) emitted by the laser emitting unit (101) passes through the transparent water pipe (200) and then reaches the laser receiving unit (102);
when the water level in the transparent water pipe (200) reaches or is higher than the installation position of the device (100), the laser (104) emitted by the laser emitting unit (101) is refracted when passing through the transparent water pipe (200), and the laser (104) cannot reach the laser receiving unit (102).
2. The automatic water level detecting device according to claim 1, wherein the laser emitting unit (101) and the laser receiving unit (102) are located at non-central line positions of the cross section of the transparent water pipe (200).
3. The automatic water level detecting device according to claim 1, wherein when the water level in the transparent water pipe (200) does not reach the device installation position (100), the laser (103) emitted by the laser emitting unit (101) passes through the transparent water pipe (200) and reaches the laser receiving unit (102); the laser receiving unit (102) receives the laser (103), and the signal output end P2 outputs low level indicating that the water level does not reach the installation position of the device (100).
4. The automatic water level detecting apparatus according to claim 1, wherein when the water level in the transparent water pipe (200) reaches or is higher than the apparatus installation position (100), the laser light (104) emitted from the laser emitting unit (101) is emitted into the water (202) in the transparent water pipe (200) in a non-perpendicular manner, and the laser light (104) is refracted; the laser (104) is deviated from a laser path in the absence of water after passing through the transparent water pipe (200), and the laser (104) cannot be received by the laser receiving unit (102); the laser receiving unit (102) does not receive the laser, and the signal output end P2 outputs high level, which indicates that the water level has reached the installation position of the device (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110828229.4A CN113375761A (en) | 2021-07-22 | 2021-07-22 | Automatic water level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110828229.4A CN113375761A (en) | 2021-07-22 | 2021-07-22 | Automatic water level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113375761A true CN113375761A (en) | 2021-09-10 |
Family
ID=77582663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110828229.4A Pending CN113375761A (en) | 2021-07-22 | 2021-07-22 | Automatic water level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113375761A (en) |
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2021
- 2021-07-22 CN CN202110828229.4A patent/CN113375761A/en active Pending
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