Light storage energy supply laser image water level measuring device

Abstract

The utility model discloses a light storage energy supply laser image water level measuring device which comprises a water inlet device, a laser transmitter, a single-face reflective mirror, a laser receiving part, a camera, a wireless signal transmitting device, a light storage energy supply device and a far-end image analysis center. The water inlet device is fixedly arranged at the water bottom and comprises an outer cylinder and an inner cylinder fixedly arranged in the outer cylinder, the outer walls of the outer cylinder and the inner cylinder are at least provided with a first water inlet part and a second water inlet part respectively, and a filter screen is fixedly arranged at the first water inlet part; a single-sided reflective mirror capable of floating up and down along with the water level is arranged in the inner cylinder; the laser transmitter and the laser receiving part are arranged on the opposite sides of the conical part respectively, and the laser receiving part receives the laser reflected by the single-face reflective mirror. Through the arrangement of the inner barrel and the outer barrel, after water in a river passes through the first water inlet part and the second water inlet part, the water surface fluctuation of the inner barrel is smaller, ripples cannot be generated, the reflector cannot float up and down, and the measurement precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level measurement, and particularly relates to a laser image water level measurement device powered by optical storage. Background Art

[0002] Water conservancy projects are to build hydraulic structures or buildings on rivers. Water conservancy facilities are to control, regulate, develop, utilize and protect the water in nature to reduce and eliminate floods and droughts, and utilize water resources to meet the needs of human society and the natural environment. In water conservancy projects, the water level reflects the magnitude of river floods and is an important parameter for building water conservancy projects. By generating electricity through solar panels and cooperating with energy storage batteries to provide energy input for the system, long-term automatic measurement of water level changes can be achieved, and finally the changes in the water level of river water bodies can be reflected. However, the existing measurement devices have low accuracy and it is difficult to obtain accurate water level change values.

[0003] Therefore, it is urgent to propose a new solution to solve the above problems. Summary of the Invention

[0004] The utility model provides a laser image water level measurement device powered by optical storage, which can solve the problem of low measurement accuracy in the prior art.

[0005] The utility model provides a laser image water level measurement device powered by optical storage, comprising a water inlet device, a laser emitter, a single-sided reflector, a laser receiving part, a camera, a wireless signal transmitting device, an optical storage power supply device and a remote image analysis center;

[0006] The water inlet device is fixedly arranged at the bottom of the water. The water inlet device comprises an outer cylinder and an inner cylinder fixedly arranged inside the outer cylinder. At least one first water inlet part and a second water inlet part are respectively arranged on the outer walls of the outer cylinder and the inner cylinder, and a filter screen is fixedly arranged at the first water inlet part;

[0007] A single-sided reflector that can float up and down with the water level is arranged inside the inner cylinder;

[0008] A conical part is fixedly arranged at the top end of the inner cylinder. The laser emitter and the laser receiving part are respectively arranged on opposite sides of the conical part and are on the same optical path;

[0009] The camera is fixedly arranged above the laser receiving part and is arranged facing the laser receiving part;

[0010] The optical storage power supply device is connected to the laser emitter, the camera and the wireless signal transmitting device;

[0011] The wireless signal transmitting device is communicatively connected to the remote image analysis center, and the remote image analysis center is used to calculate the change of the water level through the positions of the reflected bright spots in the photos taken at different times.

[0012] Further, the inner side surface of the outer cylinder and the outer side surface of the inner cylinder are fixedly connected by a plurality of horizontally arranged cross beams.

[0013] Further, support columns are fixedly arranged on the bottom surface of the outer cylinder, and the bottom ends of the support columns are fixedly arranged on the water bottom.

[0014] Further, both the first water inlet part and the second water inlet part include a plurality of circular holes arranged at intervals, and the circular holes are used for allowing external water flow to flow into the outer cylinder and the inner cylinder, so that the water levels in the outer cylinder and the inner cylinder are kept consistent with the height of the external water level.

[0015] Further, the laser emitter is a micrometer laser emitter.

[0016] Further, a foam board floating up and down with the water level is arranged on the water surface of the inner cylinder, and the single-sided mirror is fixedly arranged on the foam board.

[0017] Further, a long strip-shaped opening is arranged on the side surface of the conical part along the height direction, and the laser receiving part includes a transparent component embedded in the long strip-shaped opening.

[0018] Further, both the laser emitter and the laser receiving part are arranged at the middle position on the side surface of the conical part, and the included angle α between the conical part and the horizontal plane is 30 to 60°.

[0019] Further, the upper end surfaces of the outer cylinder and the inner cylinder are flush, and an upper cover plate for preventing external sundries from entering the inside of the outer cylinder is arranged on the upper end surfaces of the outer cylinder and the inner cylinder.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] 1. By arranging the inner barrel and the outer barrel structures, the present utility model enables the water in the river to have smaller water surface fluctuations after passing through the first water inlet part and the second water inlet part, without generating ripples to cause the mirror to float up and down, resulting in higher measurement accuracy. In addition, by subtracting the pixel point coordinates of the reflected bright spots in the photos at different time points by the remote image analysis center, the moving distance ΔL of the reflected bright spots can be calculated, and then the height change ΔH of the water level can be inversely calculated. In addition, by arranging a filter screen at the first water inlet part, external sundries can be blocked from entering the inner cylinder, affecting the final accuracy;

[0022] 2. By arranging the optical storage and energy supply device, the present utility model greatly saves the cost of the whole device compared with laying cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the water level measuring device of the present utility model after removing the outer cylinder, the cross beam and the support column;

[0024] Figure 2 This is a schematic structural diagram of the water inlet device, laser emitter, single-sided mirror, and laser receiver of the present utility model;

[0025] Reference numerals: 1. Water inlet device; 11. Outer cylinder; 111. First water inlet part; 12. Inner cylinder; 121. Second water inlet part; 13. Conical part; 14. Cross beam; 15. Support column; 16. Foam board; 17. Upper cover plate; 2. Laser emitter; 3. Single-sided mirror; 4. Laser receiver; 5. Camera; 6. Wireless signal transmitting device; 7. Photoenergy storage and supply device; 8. Remote image analysis center. Detailed implementation manners

[0026] To further understand the content, features, and effects of the present utility model, the following embodiments are given and are described in detail in conjunction with the attached Figures 1 - 2 as follows.

[0027] As Figures 1 - 2 shown, this embodiment provides a laser image water level measurement device with photoenergy storage and supply, including a water inlet device 1, a laser emitter 2, a single-sided mirror 3, a laser receiver 4, a camera 5, a wireless signal transmitting device 6, a photoenergy storage and supply device 7, and a remote image analysis center 8;

[0028] The water inlet device 1 is fixedly arranged at the bottom of the water. The water inlet device 1 includes an outer cylinder 11 and an inner cylinder 12 fixedly arranged inside the outer cylinder 11. At least one first water inlet part 111 and a second water inlet part 121 are respectively arranged on the outer walls of the outer cylinder 11 and the inner cylinder 12. A filter screen is fixedly arranged at the first water inlet part 111;

[0029] A single-sided mirror 3 that can float up and down with the water level is arranged inside the inner cylinder 12;

[0030] A conical part 13 is fixedly arranged at the top end of the inner cylinder 12. The laser emitter 2 and the laser receiver 4 are respectively arranged on opposite sides of the conical part 13 and are on the same optical path;

[0031] The camera 5 is fixedly arranged above the laser receiver 4 and is arranged facing the laser receiver 4 for taking pictures of the reflection bright spots on the laser receiver 4 at different times;

[0032] The photoenergy storage and supply device 7 is connected to the laser emitter 2, the camera 5, and the wireless signal transmitting device 6;

[0033] The wireless signal transmitting device 6 is in communication connection with the remote image analysis center 8 for transmitting the photos taken by the camera 5 to the remote image analysis center 8. The remote image analysis center 8 is used to calculate the change in the water level based on the positions of the reflection bright spots in the photos taken at different times;

[0034] The optical storage energy supply device 7 is used to supply energy to the laser emitter 2, the camera 5, and the wireless signal transmitting device 6. When measurement is required, the optical storage energy supply device 7 is turned on to supply power to the laser emitter 2, the camera 5, and the wireless signal transmitting device 6. The laser emitted by the laser emitter 2 is reflected by the single-sided mirror 3 and received by the laser receiving part 4, generating a reflected bright spot on the laser receiving part 4. A photo of the area of the laser receiving part 4 is taken by the fixedly arranged camera 5, and the photo is transmitted to the remote image analysis center 7 through the wireless signal transmitting device 6. The pixel point position coordinates of the reflected bright spots on the photos at different time points are subtracted to calculate the moving distance ΔL of the reflected bright spot, and then the height change ΔH of the water level is inversely calculated. When the measurement is completed, the optical storage energy supply device 7 can enter the standby state to save electricity, and the requirements can be met by the optical storage energy supply device 7;

[0035] The wireless signal transmitting device 6 is used to transmit the photo taken by the camera 5 to the remote image analysis center 8, and the remote image analysis center 8 calculates the change of the water level based on the positions of the reflected bright spots on the photos taken at different times.

[0036] By setting the inner barrel and outer barrel structures in the present utility model, after the water in the river passes through the first water inlet part and the second water inlet part, the water surface in the inner barrel fluctuates less, and no ripples are generated to cause the mirror to float up and down, making the measurement accuracy higher. In addition, the pixel point position coordinates of the reflected bright spots on the photos at different time points are subtracted by the remote image analysis center to calculate the moving distance ΔL of the reflected bright spot, and then the height change ΔH of the water level is inversely calculated. In addition, by setting a filter screen at the first water inlet part, external sundries can be blocked from entering the inner barrel and affecting the final accuracy; in addition, by setting the optical storage energy supply device, compared with laying cables, the cost of the entire device is greatly saved; finally, there is no need to set a laser light receiving tube, and only a reflected bright spot needs to be formed on the laser receiving part to take a photo with a camera.

[0037] In this embodiment, as Figure 2 shown, the inner side surface of the outer barrel 11 and the outer side surface of the inner barrel 12 are fixedly connected by a plurality of horizontally arranged cross beams 14, so as to fix the inner barrel 12 in the outer barrel 11 and prevent relative movement between the two.

[0038] In this embodiment, as Figure 2 shown, the bottom surface of the outer barrel 11 is fixedly provided with support columns 15, and the bottom ends of the support columns 15 are fixedly arranged at the bottom of the water, and it can be fixedly installed at the bottom of the water by the construction method of cement grouting.

[0039] In this embodiment, as Figure 2As shown, both the first water inlet part 111 and the second water inlet part 121 include a plurality of circular holes arranged at intervals. The circular holes are used to allow external water flow to flow into the outer cylinder 11 and the inner cylinder 12 in sequence, and finally make the water levels in the outer cylinder 11 and the inner cylinder 12 the same as the external water level height.

[0040] In this embodiment, the laser emitter 2 is a micrometer laser emitter, and the laser precision it emits can meet the measurement requirements, greatly reducing the cost compared with a nanometer laser.

[0041] In this embodiment, as Figure 1 shown, a foam board 16 that floats up and down with the water level is arranged on the water surface of the inner cylinder 12. The single-sided mirror 3 is fixedly arranged on the foam board 16. The foam board 16 is circular in shape, and its size is adapted to the inner diameter of the inner cylinder 12, and it floats up and down with the water level change.

[0042] In this embodiment, as Figure 1 and 2 shown, a long strip-shaped opening is arranged along the height direction on the side surface of the conical part 13. The laser receiving part 4 includes a transparent component embedded in the long strip-shaped opening. This transparent component can be transparent glass, film, etc. Since the incident angle of the laser emitted by the laser emitter 2 remains unchanged, as the water level changes up and down, the reflected bright spot will also move up and down reciprocally on the surface of the transparent component of the conical part 13.

[0043] In this embodiment, as Figure 1 shown, both the laser emitter 2 and the laser receiving part 4 are arranged at the middle position on the side surface of the conical part 13. The laser emitter 2 is arranged inside the side surface of the conical part 13 to avoid external interference. Of course, it can also be arranged outside the side surface of the conical part 13 according to actual needs, and an opening is made on the side surface of the conical part 13 for the laser to pass through. In addition, the angle α between the conical part 13 and the horizontal plane is 30 - 60°. Especially when the angle α between the conical part 13 and the horizontal plane is 45°, the value of ΔH is ΔL / √2, where ΔH is the water level height change value and ΔL is the moving distance of the reflected bright spot on the side surface of the conical part 13.

[0044] In this embodiment, as Figure 2 shown, the upper end surfaces of the outer cylinder 11 and the inner cylinder 12 are flush. The upper end surfaces of the outer cylinder 11 and the inner cylinder 12 are provided with an upper cover plate 17 for preventing external sundries from entering the inside of the outer cylinder 11. The lower bottom surface of the outer cylinder 11 is lower than the lower bottom surface of the inner cylinder 12, but the form where the lower bottom surfaces of the outer cylinder 11 and the inner cylinder 12 are flush can also be adopted.

[0045] The above-mentioned utility model of the present invention only represents the implementation modes of the embodiments of the present utility model, and thus should not be construed as a limitation on the scope of the utility model patent, nor is it a limitation on the structure of the embodiments of the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the embodiments of the present utility model, several changes and improvements can still be made, and these all belong to the protection scope of the embodiments of the present utility model.

Claims

1. A laser image water level measuring device for energy storage and supply by light, characterized in that: It includes a water inlet device (1), a laser emitter (2), a single-sided mirror (3), a laser receiving part (4), a camera (5), a wireless signal transmitting device (6), a photovoltaic energy storage and supply device (7), and a remote image analysis center (8); The water inlet device (1) is fixedly arranged at the bottom of the water. The water inlet device (1) includes an outer cylinder (11) and an inner cylinder (12) fixedly arranged inside the outer cylinder (11). At least one first water inlet part (111) and a second water inlet part (121) are respectively arranged on the outer walls of the outer cylinder (11) and the inner cylinder (12). A filter screen is fixedly arranged at the first water inlet part (111); A single-sided mirror (3) that can float up and down with the water level is arranged inside the inner cylinder (12); A conical part (13) is fixedly arranged at the top end of the inner cylinder (12). The laser emitter (2) and the laser receiving part (4) are respectively arranged on opposite sides of the conical part (13) and are on the same optical path; The camera (5) is fixedly arranged above the laser receiving part (4) and is arranged facing the laser receiving part (4); The photovoltaic energy storage and supply device (7) is connected to the laser emitter (2), the camera (5), and the wireless signal transmitting device (6); The wireless signal transmitting device (6) is communicatively connected to the remote image analysis center (8). The remote image analysis center (8) is used to calculate the change in the water level based on the positions of the reflected bright spots in the photos taken at different times.

2. The laser image water level measuring device for optical storage and power supply according to claim 1, wherein: The inner side surface of the outer cylinder (11) and the outer side surface of the inner cylinder (12) are fixedly connected by a plurality of horizontally arranged cross beams (14); 3. The laser image water level measuring device for optical storage power supply according to claim 1, characterized in that: A support column (15) is fixedly arranged at the bottom surface of the outer cylinder (11). The bottom end of the support column (15) is fixedly arranged at the bottom of the water; 4. A laser image water level measuring device for optical storage and power supply according to claim 1, characterized in that: Both the first water inlet part (111) and the second water inlet part (121) include a plurality of circular holes arranged at intervals. The circular holes are used to allow external water flow to enter the outer cylinder (11) and the inner cylinder (12), so that the water levels inside the outer cylinder (11) and the inner cylinder (12) are kept consistent with the external water level.

5. The laser image water level measuring device for optical storage and power supply according to claim 1, characterized in that: The laser emitter (2) is a micrometer laser emitter; 6. The laser image water level measuring device for optical storage power supply according to claim 1, wherein: A foam board (16) that floats up and down with the water level is arranged on the water surface of the inner cylinder (12). The single-sided mirror (3) is fixedly arranged on the foam board (16); 7. The laser image water level measuring device for optical storage and power supply according to claim 1, characterized in that: A long strip-shaped opening is arranged along the height direction on the side surface of the conical part (13). The laser receiving part (4) includes a transparent component embedded in the long strip-shaped opening; 8. The laser image water level measurement device for optical storage and power supply according to claim 1, characterized in that: Both the laser emitter (2) and the laser receiving part (4) are arranged at the middle position on the side surface of the conical part (13). The included angle α between the conical part (13) and the horizontal plane is 30 to 60°; 9. The laser image water level measuring device for optical storage and power supply according to claim 1, characterized in that: The upper end surfaces of the outer cylinder (11) and the inner cylinder (12) are flush. An upper cover plate (17) for preventing external sundries from entering the inside of the outer cylinder (11) is arranged on the upper end surfaces of the outer cylinder (11) and the inner cylinder (12).

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