Laser displacement automatic observation system based on visual recognition

Abstract

This application relates to the field of monitoring technology, particularly a laser displacement automatic observation system based on visual recognition. It includes a rectangular mounting box and monitoring components housed within the box. The mounting box has an opening on its side wall, facing upwards. A cover is rotatably mounted at the opening and secured to the box opening by a locking mechanism. The monitoring components include a target mounted on one end wall of the mounting box, a camera positioned at the other end of the box opposite the target, a remote switch at the bottom of the box, a wireless switch inside the box, a control board on the side wall of the box, and a laser emitter positioned outside the box facing the target. The surface of the target facing away from the camera has graduations. A square hole connecting the inside and outside of the mounting box is provided at the end of the box, and the hole is aligned with the graduations. The camera is electrically connected to the remote switch and the control board, and the wireless switch is electrically connected to the laser emitter. This system achieves low-cost, high-precision displacement monitoring.

Description

Technical Field

[0001] This application relates to the field of monitoring technology, and in particular to an automatic laser displacement observation system based on visual recognition. Background Technology

[0002] With the development of IoT technology and the requirements of the construction industry, remote automatic monitoring of displacement is becoming increasingly widespread, such as settlement and horizontal displacement around foundation pits, bridge deflection monitoring, slope settlement and horizontal displacement monitoring, tunnel arch deflection monitoring, and automated monitoring of settlement and horizontal displacement of other buildings.

[0003] In sites where the number of monitoring points is small and the line-of-sight method for deep foundation pits is easy to implement, laser displacement meters are usually used for displacement monitoring. The relative displacement between the laser emission point and the spot position acquisition instrument is used to measure parameters such as the lateral displacement and vertical settlement of the monitoring point.

[0004] The existing technical solutions mentioned above have the following drawbacks: the core component of the laser displacement meter is an area array CCD sensor. Due to the high cost of this component, the overall cost of this type of laser displacement meter is also relatively high, which is not conducive to its widespread use. Utility Model Content

[0005] This application provides a vision-based automatic laser displacement monitoring system for low-cost and high-precision displacement monitoring.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] The vision-based automatic laser displacement observation system includes a rectangular mounting box and a monitoring component inside the mounting box. The mounting box has an opening on its side wall, facing upwards. A cover is rotatably mounted at the opening and is fixed to the box opening by a locking component. The monitoring component includes a target mounted on one end wall of the mounting box, a camera mounted on the other end of the mounting box opposite the target, a remote switch mounted on the side of the camera and fixed to the bottom of the mounting box, a wireless switch placed inside the mounting box, a control board mounted on the side wall of the mounting box, and a laser emitter mounted outside the mounting box facing the target. The surface of the target facing away from the camera has graduations. A square hole communicating with the inside and outside of the mounting box is opened at the end of the mounting box, and the square hole is adapted to the graduations. The camera is electrically connected to the remote switch and the control board, and the wireless switch is electrically connected to the laser emitter.

[0008] By adopting the above technical solution, and by setting up an installation box, target, camera, remote switch, wireless switch, control board, and laser emitter, when using the observation system, the installation box is placed at the monitoring point, and the laser emitter and wireless switch are taken out and placed at the reference point, so that the scale on the target plate is aligned with the laser emitter. The laser emitter emits laser light that hits the scale on the target plate. Since the target is a semi-transparent plate, the camera can capture the laser position image on the target surface. The remote switch can also control the camera through timed tasks or manual control. The wireless switch receives manual control commands issued by the remote switch. The camera acquires and transmits images through the control board, thereby transmitting the image data to the computing server. The computing server processes the images using visual recognition technology, and the processed data is uploaded to the monitoring platform. Users can access the monitoring platform through PCs and mobile phones to obtain data, and can also view the monitoring data in real time through WeChat mini-programs, achieving low-cost and high-precision displacement monitoring.

[0009] Optionally, one side wall of the box cover is hinged to the outer wall of the mounting box on the same side, and the other side wall of the box cover and the outer wall of the mounting box are jointly provided with the locking assembly. The locking assembly includes a first locking plate fixed vertically to the side wall of the box cover and a second locking plate fixed vertically to the outer wall of the mounting box. The side wall of the second locking plate has a locking groove, and the lower end wall of the locking groove is inclined. The first locking plate has a plug-in groove adapted to the second locking plate. An inclined sliding groove is formed on the surface of the first locking plate. An inclined locking block is slidably disposed in the sliding groove. The sliding groove is connected to the plug-in groove and is close to the locking groove. The end of the locking block can be located in the locking groove.

[0010] By adopting the above technical solution, and by setting a first locking plate, a second locking plate, a locking groove, a plug-in groove, a sliding groove, and a locking block, the first locking plate is fixedly connected to the box cover, the second locking plate is fixedly connected to the mounting box, and the locking block slides in the sliding groove with its end located in the locking groove. This allows the box cover and the mounting box to be fixed by the locking block engaging the locking groove. When opening, the sliding locking block can disengage from the locking groove. The rotatable and fixable box cover facilitates the inspection or maintenance of the internal components of the mounting box.

[0011] Optionally, a lithium battery is installed at the bottom of the mounting box, and the lithium battery is electrically connected to the camera, remote switch and control board.

[0012] By adopting the above technical solution and setting up a lithium battery, which is electrically connected to the camera, remote switch and control board, the system can provide power support for these components without relying on an external power source, thus enhancing the applicability of the system in scenarios without an external power source.

[0013] Optionally, the upper end of the second locking plate near the corner of the sliding groove is machined into a bevel.

[0014] By adopting the above technical solution, and by processing the corner of the upper end of the second locking plate near the sliding groove into a bevel, the second locking plate can be guided to insert more smoothly into the insertion groove of the first locking plate when the lid is closed, thus simplifying the locking operation process.

[0015] Optionally, a driving member is fixedly connected to the surface of the lock block away from the first lock plate, and a sliding cover is slidably disposed on the surface of the first lock plate. A driving groove is formed on the surface of the sliding cover that is in contact with the first lock plate, and the driving member is adapted to the driving groove and can slide in the driving groove.

[0016] By adopting the above technical solution, by setting a driving component, a sliding cover and a driving groove on the sliding cover, the driving component is adapted to the driving groove and can slide in it. By sliding the sliding cover, the driving component can be moved by the driving groove, thereby controlling the sliding of the lock block in the sliding groove, making the operation of the lock block more convenient.

[0017] Optionally, a limiting groove is formed on the opposite side wall of the first locking plate, and the sliding cover is a strip plate. The two ends of the sliding cover are bent twice and then slide in the limiting groove.

[0018] By adopting the above technical solution, and by setting the limiting groove of the first locking plate, the sliding cover slides in the limiting groove after being bent twice at both ends, which can limit the movement trajectory of the sliding cover, keep the sliding cover sliding stably, and prevent it from falling off the first locking plate.

[0019] Optionally, the camera may be a conventional camera.

[0020] By adopting the above technical solution and using conventional cameras, the overall cost of the system can be reduced while meeting the image acquisition requirements, which is conducive to the promotion and use of the system.

[0021] Optionally, a solar panel is embedded in the panel facing away from the mounting box of the box, and the solar panel is electrically connected to the lithium battery.

[0022] By adopting the above technical solution, and by setting up solar panels and connecting them to lithium batteries, light energy can be converted into electrical energy to charge lithium batteries, extending the power supply time of lithium batteries and improving the system's long-term outdoor endurance.

[0023] In summary, this application has the following technical effects:

[0024] 1. The observation system consists of a mounting box, target, camera, remote switch, wireless switch, control board, and laser emitter. When using the system, the mounting box is placed at the monitoring point, and the laser emitter and wireless switch are removed and placed at the reference point, ensuring the scale on the target plate faces the laser emitter. The laser emitter emits a laser beam that hits the scale on the target plate. Because the target is semi-transparent, the camera can capture images of the laser position on the target surface. The remote switch can control the camera via a timed task or manual control. The wireless switch receives commands from the remote switch. The camera acquires and transmits images through the control board, sending the image data to the computing server. The computing server processes the images using visual recognition technology, and the processed data is uploaded to the monitoring platform. Users can access the monitoring platform via PC or mobile phone to obtain data, and can also view monitoring data in real time via a WeChat mini-program, achieving low-cost, high-precision displacement monitoring.

[0025] 2. By setting a first locking plate, a second locking plate, a locking groove, a plug-in groove, a sliding groove, and a locking block, the first locking plate is fixedly connected to the box cover, the second locking plate is fixedly connected to the mounting box, and the locking block slides in the sliding groove and its end can be located in the locking groove. This allows the box cover and the mounting box to be fixed by the locking block being engaged in the locking groove. When opening, the sliding locking block can be disengaged from the locking groove. The rotating and fixed box cover facilitates the inspection or maintenance of the internal components of the mounting box.

[0026] 3. By incorporating a lithium battery, which is electrically connected to the camera, remote switch, and control board, the system can provide power to these components without relying on an external power source, thus enhancing its applicability in scenarios without an external power supply. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the object of this application;

[0028] Figure 2 This is a structural diagram of the locking component of this application;

[0029] Figure 3 This is a structural diagram of the locking component from another angle in this application;

[0030] Figure 4 This is a structural diagram of the monitoring component of this application;

[0031] Figure 5 This is a flowchart of the process of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Mounting component; 11. Mounting box; 111. Square hole; 12. Box cover; 2. Locking component; 21. First locking plate; 211. Insertion slot; 212. Sliding slot; 213. Limiting slot; 22. Second locking plate; 221. Retractable section; 222. Locking groove; 23. Locking block; 24. Driving component; 25. Sliding cover; 251. Driving groove; 3. Monitoring component; 31. Target; 32. Camera; 33. Control board; 34. Remote switch; 35. Wireless switch; 36. Lithium battery; 37. Solar panel; 38. Laser emitter. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] This application discloses a vision-based automatic laser displacement observation system, referring to... Figure 1 The observation system includes an installation component 1, a locking component 2 installed on the installation component 1, and a monitoring component 3 installed inside the installation component 1. The installation component 1 provides an installation platform for the monitoring component 3 and installs it at the site where monitoring is required. The installation component 1 can protect the monitoring component 3 during its operation and reduce the possibility of damage. The locking component 2 facilitates subsequent inspection, repair, or replacement of the monitoring component. The monitoring component 3 enables low-cost remote displacement monitoring and is easy to promote and use.

[0035] Reference Figure 1 The mounting assembly 1 is a cylindrical mounting box 11, which is horizontally positioned. One side wall of the mounting box 11 has an opening facing upwards. A cover 12 is rotatably mounted at the opening of the mounting box 11. The cover 12 is locked by a locking assembly 2 to close the opening of the mounting box 11. The cover 12 is a strip plate, and its length is parallel to that of the mounting box 11. The surface of the cover 12 can fit against the surface of the opening of the mounting box 11. The side wall of the cover 12 is hinged to the outer side wall of the mounting box 11 on the same side. The other side wall of the cover 12 and the outer side wall of the mounting box 11 on the same side are both provided with the locking assembly 2, which fixes the cover 12 to the opening of the mounting box 11.

[0036] Combination Figure 1 and Figure 2 The locking assembly 2 includes a first locking plate 21 disposed on the side wall of the cover 12, a second locking plate 22 disposed on the outer side wall of the mounting box 11, a locking block 23 slidably disposed on the first locking plate 21 away from the plate surface of the mounting box 11, a sliding cover 25 slidably disposed on the first locking plate 21 away from the mounting box 11, and a handle fixedly connected to the sliding cover 25. The length direction of the first locking plate 21 is parallel to the axis of the mounting box 11, the plate surface of the first locking plate 21 is fixedly connected to the side wall of the cover 12, and the upper end of the first locking plate 21 is flush with the surface of the cover 12 away from the sealing element.

[0037] Combination Figure 2 and Figure 3 The second locking plate 22 is fixed to the upper end of the outer wall of the mounting box 11. The length direction of the second locking plate 22 is parallel to the axis of the mounting box 11. The second locking plate 22 is machined to form a contraction section 221 located at the upper part. One side wall of the contraction section 221 is flush with the lower side wall of the second locking plate 22. The other side wall of the contraction section 221 forms a step with the lower side wall of the second locking plate 22. A rectangular locking groove 222 is opened inward at the step of the second locking plate 22. The length direction of the locking groove 222 is parallel to the length direction of the second locking plate 22, and the bottom of the locking groove 222 is parallel to the side wall of the second locking plate 22. The end wall of the locking groove 222 away from the contraction section 221 is machined into an inclined surface to make the locking groove 222 flared. The flared opening of the locking groove 222 faces away from the second locking plate 22.

[0038] Combination Figure 2 and Figure 3 The upper end of the contraction section 221 is machined into a bevel at the corner on the same side as the locking groove 222. The lower end wall of the first locking plate 21 is provided with an insertion groove 211 that is adapted to the second locking plate 22. The side of the first locking plate 21 away from the mounting box 11 and close to the locking groove 222 is provided with a strip-shaped sliding groove 212. The sliding groove 212 is inclined and slopes upward from close to the insertion groove 211 to away from the insertion groove 211. The second locking plate 22 is inserted into the insertion groove 211. The upper corner of the sliding groove 212 close to the locking groove 222 is connected to the locking groove 222. The inclined end wall of the locking groove 222 is flush with the end wall of the sliding groove 212. A locking block 23 is slidably arranged in the sliding groove 212. The length direction of the locking block 23 is perpendicular to the length direction of the sliding groove 212. The upper end of the locking block 23 can be located in the locking groove 222, locking the second locking plate 22 in the insertion groove 211.

[0039] Combination Figure 2 and Figure 3 A driving component 24 is provided on the surface of the locking block 23 facing away from the mounting box 11, and the length direction of the driving component 24 is perpendicular to the axis of the mounting box 11. A limiting groove 213 is provided on the side wall of the first locking plate 21, and the length direction of the limiting groove 213 is parallel to the length direction of the first locking plate 21. A sliding cover 25 is slidably provided on the side of the first locking plate 21 facing away from the mounting box 11. The sliding cover 25 is a strip plate, and the length direction of the sliding cover 25 is perpendicular to the length direction of the mounting box 11. Both ends of the sliding cover 25 are bent towards the mounting box 11, and the bent ends of the sliding cover 25 are bent a second time towards each other. The bent ends of the sliding cover 25 are adapted to the limiting groove 213 and are slidably disposed in the limiting groove 213.

[0040] Combination Figure 2 and Figure 3A spring is installed inside the limiting groove 213, located on the upper part of the sliding cover 25. One end of the spring is fixedly connected to the end wall of the limiting groove 213, and the other end is fixedly connected to the end side wall of the sliding cover 25 located inside the limiting groove 213. The surface of the sliding cover 25 slides against the surface of the first locking plate 21. A driving groove 251 is formed on the surface of the sliding cover 25 that is in contact with the first locking plate 21. The length direction of the driving groove 251 is parallel to the length direction of the sliding cover 25. The driving component 24 is adapted to the driving groove 251 and is slidably disposed in the driving groove 251.

[0041] Combination Figure 1 and Figure 4 The monitoring component 3 includes a target 31 located at one end inside the mounting box 11, a camera 32 opposite to the target 31, a control board 33 located on the inner side wall of the mounting box 11, a remote switch 34 located at the bottom of the mounting box 11 near the camera 32, a wireless switch 35 placed inside the mounting box 11, a lithium battery 36 located between the target 31 and the camera 32, a solar panel 37 embedded in the box cover 12 facing away from the mounting box 11, and a laser emitter 38 located outside the mounting box 11. The target 31 is made of a semi-transparent acrylic sheet. One side of the target 31 has a scale, which is a square mesh. The end wall of the mounting box 11 on which the target 31 is located has a square hole 111. The square hole 111 connects the inside and outside of the mounting box 11. The scale is away from the camera 32. The scale is adapted to the square hole 111. The target 31 sheet around the scale is fixed to the inner end wall of the mounting box 11 around the square hole 111. The scale and the hole wall of the square hole 111 are spaced apart.

[0042] Combination Figure 1 and Figure 4 The camera 32 is a conventional camera. The remote switch 34 controls the camera 32's on / off state and the wireless switch 35's operating status. The lithium battery 36 is electrically connected to the camera 32, control board 33, and remote switch 34, providing them with power; no external power supply is required. The wireless switch 35 is wirelessly connected to the remote switch 34 and electrically connected to the laser emitter 38. The remote switch 34 can be set to timed control or manually controlled, thus controlling the camera 32's on / off state. The wireless switch 35 can be manually controlled via the remote switch 34, and the laser emitter 38 can be controlled via the wireless switch 35. The lithium battery 36 is spaced apart from the target 31, providing space for the laser emitter 38 and the wireless switch 35.

[0043] Combination Figure 4 and Figure 5When transporting the observation system, the laser emitter 38 and the wireless switch 35 are placed inside the mounting box 11, between the target 31 and the lithium battery 36. When using the observation system, the mounting box 11 is placed at the monitoring point, and the laser emitter 38 and the wireless switch 35 are taken out and placed at the reference point, ensuring the scale on the target 31 is aligned with the laser emitter 38. The laser emitter 38 emits a laser beam that hits the scale on the target 31. Since the target 31 is a semi-transparent plate, the camera 32 can capture images of the laser position on the target 31 surface. The remote switch 34 can also control the camera 32 via a timed task or manual control. The wireless switch 35 receives manual control commands from the remote switch 34. The camera 32 acquires and transmits images through the control board 33, thereby transmitting the image data to the computing server. The computing server processes the images using visual recognition technology, and the processed data is uploaded to the monitoring platform. Users can access the monitoring platform via PC or mobile phone to obtain data, and can also view the monitoring data in real time via a WeChat mini-program.

[0044] Combination Figure 1 and Figure 4 The solar panel 37 is parallel to the length of the cover 12. The surface of the solar panel 37 facing away from the mounting box 11 is flush with the surface of the cover 12. The surface of the cover 12 facing the mounting box 11 has a circular hole with the axis of the circular hole perpendicular to the surface of the cover 12. The circular hole connects the surface of the cover 12 and the surface of the solar panel 37. A wire passes through the circular hole to electrically connect the solar panel 37 to the lithium battery 36. The solar panel 37 converts light energy into electrical energy to charge the lithium battery 36.

[0045] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A laser displacement automatic observation system based on visual recognition, characterized in that: It includes a square column-shaped installation box (11) and a monitoring component (3) disposed inside the installation box (11). The side wall of the installation box (11) is provided with an opening facing upwards. A cover (12) is rotatably disposed at the opening. The cover (12) is fixed to the opening of the installation box (11) by a locking component (2). The monitoring component (3) includes a target (31) set on one end wall of the mounting box (11), a camera (32) set on the other end of the mounting box (11) opposite to the target (31), a remote switch (34) set on one side of the camera (32) and fixed to the bottom of the mounting box (11), a wireless switch (35) placed inside the mounting box (11), a control board (33) set on the side wall of the mounting box (11), and a laser emitter (38) set outside the mounting box (11) facing the target (31). The surface of the target (31) facing away from the camera (32) is provided with a scale. A square hole (111) connecting the inside and outside is opened at the end of the mounting box (11). The square hole (111) is adapted to the scale. The camera (32) is electrically connected to the remote switch (34) and the control board (33). The wireless switch (35) is electrically connected to the laser emitter (38).

2. The automatic laser displacement observation system based on visual recognition according to claim 1, characterized in that: One side wall of the box cover (12) is hinged to the outer wall of the mounting box (11) on the same side. The other side wall of the box cover (12) and the outer wall of the mounting box (11) are provided with the locking assembly (2). The locking assembly (2) includes a first locking plate (21) fixed vertically to the side wall of the box cover (12) and a second locking plate (22) fixed vertically to the outer wall of the mounting box (11). The side wall of the second locking plate (22) is provided with a locking groove (222). (222) The lower end wall is inclined. The first locking plate (21) has a plug groove (211) adapted to the second locking plate (22). The first locking plate (21) has an inclined sliding groove (212) on its surface. An inclined locking block (23) is slidably disposed in the sliding groove (212). The sliding groove (212) is connected to the plug groove (211) and close to the locking groove (222). The end of the locking block (23) can be located in the locking groove (222).

3. The automatic laser displacement observation system based on visual recognition according to claim 1, characterized in that: The bottom of the mounting box (11) is equipped with a lithium battery (36), which is electrically connected to the camera (32), the remote switch (34) and the control board (33).

4. The automatic laser displacement observation system based on visual recognition according to claim 2, characterized in that: The upper end of the second locking plate (22) near the corner of the sliding groove (212) is machined into a bevel.

5. The automatic laser displacement observation system based on visual recognition according to claim 4, characterized in that: The locking block (23) is fixedly connected to a driving member (24) on the surface away from the first locking plate (21). A sliding cover (25) is slidably disposed on the surface of the first locking plate (21). A driving groove (251) is formed on the surface of the sliding cover (25) that is in contact with the first locking plate (21). The driving member (24) is adapted to the driving groove (251) and can slide in the driving groove (251).

6. The automatic laser displacement observation system based on visual recognition according to claim 5, characterized in that: A limiting groove (213) is provided on the opposite side wall of the first locking plate (21). The sliding cover (25) is a strip plate. The two ends of the sliding cover (25) are bent twice and then slide in the limiting groove (213).

7. The automatic laser displacement observation system based on visual recognition according to claim 1, characterized in that: The camera (32) is a conventional camera.

8. The automatic laser displacement observation system based on visual recognition according to claim 3, characterized in that: The cover (12) is embedded with a solar panel (37) on the side facing away from the mounting box (11), and the solar panel (37) is electrically connected to the lithium battery (36).

Images