A convenient mobile image information acquisition device

Abstract

The application relates to a portable image information acquisition device, which comprises a base, an extension rod and an acquisition device. The acquisition device comprises a laser radar and a depth camera. A driving circuit for controlling the working of the laser radar and the depth camera is arranged in the base. The extension rod is connected to the base and the acquisition device and is used for adjusting the distance between the base and the extension rod. The base is provided with a vertical surface for vertically placing the image information acquisition device. The depth camera and the laser radar are integrated, the power supply and the driving circuit are arranged in the base, the extension rod is used for supporting the acquisition device to adjust the height of the acquisition device, and the multiple devices are integrated, so that the carrying and carrying of the depth camera and the laser radar are greatly facilitated, and the assembly and disassembly before and after use are no longer needed, and the whole machine is convenient and fast to carry.

Description

Technical Field

[0001] This invention relates to image acquisition equipment, specifically a convenient and mobile image information acquisition device. Background Technology

[0002] Currently, during the robot's movement, it is necessary to identify and collect images of obstacles in the path. The mainstream image acquisition method basically uses a depth camera in conjunction with LiDAR to collect image data during the robot's movement.

[0003] During the daily research and development and debugging of robots, it is necessary to continuously correct and train the collected image data. Therefore, researchers need to carry depth cameras, LiDAR, power supplies, drive circuit boards and other components separately for assembly.

[0004] Therefore, how to conveniently carry such image information acquisition devices is the technical problem that this application aims to solve.

[0005] Meanwhile, data collected by LiDAR, depth cameras, etc. will be entered into the map. If the image is offset during the collection process (i.e. the camera is tilted), the data model formed in the map will be skewed. Summary of the Invention

[0006] The purpose of this invention is to provide a convenient mobile image information acquisition device. By integrating a depth camera and a LiDAR, and placing the power supply and drive circuit inside the base, the acquisition device is supported by a telescopic rod to adjust its height. By integrating multiple devices, the transport and carrying of the depth camera and LiDAR are greatly facilitated. No assembly or disassembly is required before or after use, and the whole device is convenient and quick to carry.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a convenient mobile image information acquisition device, comprising a base, a telescopic rod, and an acquisition device, wherein the acquisition device includes a lidar and a depth camera, the base is provided with a drive circuit for controlling the operation of the lidar and the depth camera, the telescopic rod connects the base and the acquisition device, the telescopic rod is used to adjust the distance between the base and the telescopic rod, and the base is provided with a vertical surface for the vertical placement of the image information acquisition device.

[0008] Compared with existing technologies, the convenient mobile image information acquisition device that adopts the above technical solution has the following beneficial effects:

[0009] By integrating the drive circuitry (including power supply, control circuitry, and wireless transmission module) into the base and connecting the base and acquisition device via a telescopic rod, the image information acquisition device can be quickly assembled. Furthermore, the combination of a depth camera and LiDAR facilitates the acquisition of crucial image data during the development of the quadruped robot. When transport is required, simply shorten the telescopic rod to bring the base and acquisition device closer together for easy transport as a whole, eliminating the need for repeated assembly and disassembly.

[0010] Preferably, the convenient mobile image information acquisition device further includes a laser generator, a horizontal light shield, and an optical path indicator. The laser generator includes multiple laser heads arranged in a ring. The horizontal light shield includes a light-shielding droplet, a light-shielding plate, and a light-transmitting hole. The horizontal light shield is fixed to the acquisition device. The light-transmitting hole is arranged along the edge of the light-shielding plate. The light-transmitting hole corresponds to the position of the laser head in vertical space. The optical path indicator is located inside the acquisition device. The optical path indicator includes an observation hole, a reflector, and an optical path channel. The reflector is set inside the optical path channel. The optical path channel is used to guide the laser from the entrance of the optical path channel to enter and irradiate the observation hole. The top of the acquisition device is a plane, and the observation hole is located on the top plane of the acquisition device.

[0011] When the horizontal light shield is horizontal, the light-shielding droplet is located in the middle of the light shield plate. The light-shielding droplet does not coincide with the light-transmitting hole. The laser emitted from the laser head of the laser generator can pass through the light-transmitting hole and enter the optical path channel. After being reflected by the reflector, it finally illuminates the observation hole, and all the observation holes on the top of the acquisition device light up.

[0012] When the horizontal light shield is tilted, the light-shielding droplet moves to the edge of the light shield plate due to gravity. The light-shielding droplet coincides with the light-transmitting hole, and the laser shines on the light-shielding droplet through the light-transmitting hole, causing the light path to be blocked. One of the observation holes on the top of the acquisition device does not light up.

[0013] By utilizing the property that light-blocking droplets tend to move to the lowest point due to gravity, when the observation hole is blocked, it can be inferred that the acquisition device is not horizontal, and the current position of the observation hole can be estimated to be the lowest point. Using the characteristics of the optical path indicator, the current tilt direction can be intuitively deduced for subsequent alignment operations of the acquisition device.

[0014] After alignment, all data collected by LiDAR and depth cameras are aligned with the coordinate axes of the images, ensuring that the map display is no longer tilted.

[0015] Preferably, the light-shielding plate is a conical surface. In this design, the cone angle is 170-178 degrees. The center of the light-shielding plate is slightly concave to form a horizontal groove, which is located at the lowest point of the light-shielding plate. Since the acquisition device does not have strict requirements for the horizontal tilt angle, allowing for a tilt of 1-5°, the light-shielding plate here is a conical surface, and a concave horizontal groove is added to the cone to allow the light-shielding droplets to remain in the horizontal groove, making the entire alignment process more convenient and faster.

[0016] Preferably, the connection between the acquisition device and the telescopic rod is provided with a bending joint. The acquisition device can be tilted vertically relative to the telescopic rod through the bending joint. The laser generator and the horizontal light shield are both located above the bending joint. That is, when the base is tilted relatively severely, the angle of the acquisition device can be corrected through the bending joint.

[0017] Preferably, the base has a horizontal surface for the horizontal placement of the image information acquisition device. The base has an embedding groove. After the acquisition device is folded down via a bending joint, the telescopic rod can be shortened and inserted into the embedding groove. The telescopic rod retracts into the base, and the acquisition device is placed close together and stacked on top of the base (see...). Figure 13 After the base and the acquisition device are stacked, the overall size of the image information acquisition device is further reduced, and it can even be placed directly on the ground for image acquisition within the height limit.

[0018] Preferably, a fine-tuning mechanism is provided between the base and the acquisition device. This mechanism includes a positioning ball groove, two lifting rods, and a positioning ball head. The lifting rods are located on the base surface where the embedding groove is located, the positioning ball head is located on the acquisition device, and the positioning ball groove is located behind the embedding groove. When the acquisition device is embedded into the embedding groove of the base, the positioning ball head engages with the positioning ball groove. The acquisition device can rotate both circumferentially and vertically along the positioning ball groove via the positioning ball head, and the lifting rods contact the bottom surface of the acquisition device. When the acquisition device and the base are stacked vertically, the horizontal placement angle of the acquisition device is adjusted by adjusting the height of the left and right lifting rods to achieve a horizontal position.

[0019] Preferably, the fine-tuning mechanism further includes an adjustment knob, and a linkage structure is provided between the adjustment knob and the lifting rod. When the adjustment knob is rotated, the linkage structure drives the lifting rod to rise / fall. The adjustment knob is used to control the distance of the lifting rod's up and down movement, which facilitates fine-tuning.

[0020] Preferably, the horizontal light shield further includes a transparent enclosure and a diffusion section. The transparent enclosure is annular and made of transparent material, located on the side wall of the telescopic rod and arranged circumferentially along the telescopic rod. The diffusion section is located inside the transparent enclosure, corresponding to the light-transmitting hole. The diffusion section is made of a diffused semi-transparent scattering material (such as transparent plastic containing fine sand particles, transparent plastic with flocculent material, etc.). When the laser passes through the diffusion section, the laser diffusion phenomenon can be directly observed, and the diffusion section lights up directly. By adding the diffusion section and the transparent enclosure, when the user adjusts to a higher height, they can judge the level by observing the diffusion section, without having to observe the observation hole on the top of the acquisition device.

[0021] Preferably, the convenient mobile image information acquisition device further includes a laser generator and a horizontal light shield. The laser generator includes multiple sets of laser heads arranged in a ring. The horizontal light shield includes light-shielding droplets, a light-shielding plate, and a light-transmitting hole. The horizontal light shield and the acquisition device are fixed together. The light-transmitting hole is arranged along the edge of the light-shielding plate. The light-shielding plate and the laser heads are positioned in vertical space. The top of the acquisition device is flat. The horizontal light shield also includes a transparent enclosure and a diffusion section. The transparent enclosure is ring-shaped and made of transparent material. The transparent enclosure is located on the side wall of the telescopic rod and is arranged circumferentially along the telescopic rod. The diffusion section is located inside the transparent enclosure and is made of a diffused semi-transparent scattering material. The position of the diffusion section corresponds to the light-transmitting hole.

[0022] When the horizontal light shield is horizontal, the light-shielding droplet is located in the middle of the light shield plate. The light-shielding droplet does not coincide with the light-transmitting hole. The laser emitted from the laser head of the laser generator can pass through the light-transmitting hole and enter the diffusion section. Through the transparent enclosure, it can be observed that all the lasers in the diffusion section are lit up.

[0023] When the horizontal light shield is tilted, the light-shielding droplet moves to the edge of the light shield plate due to gravity. The light-shielding droplet coincides with the light-transmitting hole, and the laser shines on the light-shielding droplet through the light-transmitting hole, causing the light path to be blocked. One of the diffused parts inside the transparent enclosure does not light up.

[0024] Preferably, the telescopic rod further includes an inner component for fixing the horizontal light shield. The inner component is made of transparent material and is combined with the transparent enclosure. The user can directly observe the light situation of the diffused part behind without rotating the transparent enclosure or moving people to observe. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the convenient mobile image information acquisition device of the present invention.

[0026] Figure 2 This is a schematic diagram of the image information acquisition device in Example 1.

[0027] Figure 3This is a schematic diagram of the structure of the convenient mobile image information acquisition device in Example 2.

[0028] Figure 4 This is a schematic diagram of the optical path indicator device in Example 2.

[0029] Figure 5 This is a schematic diagram of the horizontal light shield in Example 2.

[0030] Figure 6 This is a cross-sectional view of the horizontal shader in Example 2.

[0031] Figure 7 This is a schematic diagram of the laser generator in Example 2.

[0032] Figure 8 This is a schematic diagram of the structure of the convenient mobile image information acquisition device in Example 3.

[0033] Figure 9 This is a schematic diagram of the structure of the convenient mobile image information acquisition device in Example 4.

[0034] Figure 10 This is a schematic diagram illustrating the use of the convenient mobile image information acquisition device in Example 4.

[0035] Figure 11 This is a schematic diagram of the structure of the convenient mobile image information acquisition device in Example 4.

[0036] Figure 12 This is a schematic diagram of the structure of the convenient mobile image information acquisition device in Example 4.

[0037] Figure 13 This is a schematic diagram of the structure of the convenient mobile image information acquisition device in Example 4.

[0038] Figure 14 This is a schematic diagram of the base structure in Example 4.

[0039] Figure 15 This is a schematic diagram of the structure of the convenient mobile image information acquisition device in Example 5.

[0040] Figure 16 This is a schematic diagram of the horizontal light shield in Example 5.

[0041] Figure 17 This is a schematic diagram of the structure of the convenient mobile image information acquisition device in Example 6.

[0042] Reference numerals: 1. Base; 10. Grip; 11. Embedded groove; 2. Telescopic rod; 20. Bending joint; 3. Acquisition device; 30. Positioning ball head; 31. LiDAR; 32. Depth camera; 4. Laser generator; 40. Laser head; 5. Optical path indicator; 50. Observation hole; 51. Reflector; 52. Optical path channel; 6. Fine adjustment mechanism; 60. Positioning ball groove; 61. Adjustment knob; 62. Lifting rod; 7. Horizontal light shield; 70. Light shield plate; 71. Light-transmitting hole; 72. Horizontal groove; 73. Transparent enclosure; 74. Diffusion part; 75. Internal component; 76. Light-shielding droplet. Detailed Implementation

[0043] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0044] Example 1:

[0045] See Figure 1-2 A convenient mobile image information acquisition device includes a base 1, a telescopic rod 2, and an acquisition device 3. The acquisition device 3 includes a lidar 31 and a depth camera 32. The base 1 is provided with a drive circuit for controlling the operation of the lidar 31 and the depth camera 32. The telescopic rod 2 connects the base 1 and the acquisition device 3. The telescopic rod 2 is used to adjust the distance between the base 1 and the telescopic rod 2. The base 1 is provided with a vertical surface for the vertical placement of the image information acquisition device.

[0046] In this embodiment, the power supply, drive circuit, wireless docking module, etc. are all inside the base 1. The weight of the base 1 is greater than that of the acquisition device 3, which can ensure that the acquisition device 3 is vertical when the base 1 is placed.

[0047] Example 2:

[0048] This embodiment is based on embodiment 1, with the addition of a laser generator 4 and a horizontal light shield 7 inside the telescopic rod 2, and the addition of a light path indicator 5 inside the acquisition device 3.

[0049] After the base 1 is placed vertically, the horizontal level of the acquisition device 3 can be observed by looking through the observation hole 50 on the top of the lidar 31.

[0050] See Figure 4 The optical path indicator 5 is located inside the acquisition device 3. The optical path indicator 5 includes an observation hole 50, a reflector 51, and an optical path channel 52. The reflector 51 is located inside the optical path channel 52. The optical path channel 52 is used to guide the laser from the entrance of the optical path channel 52 to enter and irradiate the observation hole 50. The top of the acquisition device 3 is a plane, and the observation hole 50 is located on the top plane of the acquisition device 3.

[0051] See Figure 5 and Figure 6 The positions of the horizontal light shield 7 and the collection device 3 are relatively fixed. The horizontal light shield 7 includes a light-shielding droplet 76, a light-shielding plate 70 and a light-transmitting hole 71. The light-transmitting hole 71 is arranged in a ring along the edge of the light-shielding plate 70. The light-transmitting hole 71 corresponds to the position of the laser head 40 in the vertical space.

[0052] The light-shielding plate 70 is a conical surface (the height of the middle part is lower than the height of the edge). Figure 6 In the cross section, the included angle between the two diameters of the cone is 174° (i.e., each side is tilted up by 3°, allowing for a 3° error when placing the collection device 3). The center of the light-shielding plate 70 is slightly concave downward to form a horizontal groove 72. The horizontal groove 72 is located at the lowest point of the light-shielding plate 70. When the tilt angle of the collection device 3 is within the 3° error, the light-shielding droplet 76 is basically located in the horizontal groove 72, which allows the researchers to quickly align it during use.

[0053] See Figure 7 The laser generator 4 includes multiple laser heads 40 arranged in a ring.

[0054] The working principles of the horizontal light shield 7 and the optical path indicator 5 are as follows:

[0055] When the horizontal light shield 7 is horizontal, the light shielding droplet 76 is located in the middle of the light shield plate 70. The light shielding droplet 76 does not coincide with the light transmission hole 71. The laser emitted from the laser head 40 of the laser generator 4 can pass through the light transmission hole 71 and enter the optical path pipe 52. After being reflected by the reflector 51, it finally illuminates the observation hole 50. All the observation holes 50 on the top of the acquisition device 3 are lit up. The surface acquisition device 3 is currently in a horizontal state.

[0056] When the horizontal light shield 7 is tilted, the light shielding droplet 76 moves to the edge of the light shield plate 70 due to gravity. The light shielding droplet 76 coincides with the light transmission hole 71. The laser shines on the light shielding droplet 76 through the light transmission hole 71, causing the light path to be blocked. One of the observation holes 50 on the top of the acquisition device 3 does not light up, which means that the position of the unlit observation hole 50 is too low. It is necessary to slightly raise the position of the base 1 where the observation hole 50 is located.

[0057] Example 3:

[0058] See Figure 8This embodiment is based on embodiment 2, and a bending joint 20 is provided at the connection between the acquisition device 3 and the telescopic rod 2. The acquisition device 3 can be tilted in the vertical direction relative to the telescopic rod 2 through the bending joint 20, so that the acquisition device 3 can be corrected through the bending joint 20 when the base 1 cannot be leveled. Since the bending joint 20 will block the light, the laser generator 4 and the horizontal light shield 7 need to be located at the bending joint 20 to ensure that the light path is unobstructed.

[0059] Example 4:

[0060] In Examples 1-3, the base 1 is placed on the ground, and the telescopic rod 2 raises the acquisition device 3 high to acquire images. The main image information acquired is images with a height of 50cm or more.

[0061] In this embodiment, the design primarily focuses on low-altitude image acquisition, close to the ground. Therefore, the image acquisition device in this embodiment can acquire image information at heights above 50cm (e.g., ...). Figure 9 (As shown in the standing position), it can also collect image information close to 10cm above the ground (such as...) Figure 13 (The image shows the ground-hugging position). The steps for changing from a standing to a ground-hugging position can be found in [reference needed]. Figure 10 As shown.

[0062] The base 1 has a horizontal surface for the horizontal placement of the image information acquisition device. The base 1 has an embedding groove 11. The acquisition device 3 can be inserted into the embedding groove 11 after being folded by the bending joint 20 and the telescopic rod 3 is shortened. The telescopic rod 2 is retracted into the base 1, and the acquisition device 3 is placed close together and stacked on top of the base 1 (e.g., Figure 13 (As shown in the ground-facing state). In this state, the image information acquisition device is relatively small in height and occupies a small volume of space. In addition to being able to acquire ground-facing image information, it is also easy to store and store.

[0063] When the image is captured while in a ground-hugging position, the level of the acquisition device 3 still needs to be adjusted if the ground is uneven. Therefore, a fine-tuning mechanism 6 is provided between the base 1 and the acquisition device 3.

[0064] See Figure 11 , Figure 12 , Figure 14 The fine-tuning mechanism 6 includes a positioning ball groove 60, two adjustment knobs 61, two lifting rods 62 and a positioning ball head 30. The lifting rods 62 are located on the surface of the base 1 where the embedded groove 11 is located. A linkage structure is provided between the adjustment knobs 61 and the lifting rods 62. When the adjustment knobs 61 are rotated, the linkage structure drives the lifting rods 62 to rise / fall.

[0065] The positioning ball head 30 is located on the acquisition device 3, and the positioning ball groove 60 is located behind the embedding groove 11. When the acquisition device 3 is embedded into the embedding groove 11 of the base 1, the positioning ball head 30 is engaged into the positioning ball groove 60 (see...). Figure 11 and Figure 12 The acquisition device 3 can rotate both circumferentially and vertically along the positioning ball groove 60 via the positioning ball head 30, and the lifting rod 62 contacts the bottom surface of the acquisition device 3.

[0066] Since the positioning ball head 30 is embedded in the positioning ball groove 60, after the two lifting rods 62 lift the bottom surface of the acquisition device 3, the bottom surface of the acquisition device 3 is in three-point contact. By adjusting the height of the two lifting rods 62, the left and right and front and back angles of the acquisition device 3 can be adjusted. During the adjustment process, it is only necessary to observe the observation hole 5 at the top for adjustment.

[0067] Example 5:

[0068] See Figure 15 This embodiment is based on embodiments 2-4, and a transparent enclosure 73 and a diffusion section 74 are added inside the horizontal light shield 7 of the telescopic rod 2.

[0069] The transparent enclosure 73 is annular and made of transparent material. The transparent enclosure 73 is located on the side wall of the telescopic rod 2 and is arranged around the circumference of the telescopic rod 2. The diffusion part 74 is located inside the transparent enclosure 73 and is made of a diffused semi-transparent scattering material. The position of the diffusion part 74 corresponds to the light-transmitting hole 71.

[0070] See Figure 16 When the laser passes through the diffusion section 74, the diffusion phenomenon of the laser can be directly observed (the diffusion section 74 is directly illuminated by the laser). Therefore, when the user adjusts the acquisition device 3 to a higher height, the position of the observation hole 50 is already above the user's eye level. At this time, the level can be judged by observing the diffusion section 74, without having to observe the observation hole 50 at the top of the acquisition device 3.

[0071] The telescopic pole 2 also includes an inner component 75 for fixing the horizontal light shield 7. The inner component 75 is made of transparent material. The inner component 75 is combined with the transparent enclosure 73, allowing the user to directly observe the light situation of the rear diffuser 74 without rotating the transparent enclosure 73 or moving around to observe it.

[0072] In this embodiment, the diffusion section 74 and the observation hole 50 coexist.

[0073] Example 6:

[0074] This embodiment is based on Embodiment 1, with the addition of a transparent enclosure 73 and a diffusion section 74. Compared to Embodiment 5, this embodiment only has the diffusion section 74 for observation, and there is no observation hole 50. This embodiment is mainly used for image information acquisition in a standing state, and when acquiring images in a standing state, the acquisition device 3 is often in a high position. Therefore, the observation hole 50 is removed, and only the diffusion section 74 is retained.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A convenient mobile image information acquisition device, characterized in that: The device comprises a base (1), a telescopic rod (2) and a collecting device (3), the collecting device (3) comprises a laser radar (31) and a depth camera (32), the base (1) is internally provided with a driving circuit for controlling the working of the laser radar (31) and the depth camera (32), the telescopic rod (2) is connected to the base (1) and the collecting device (3), the telescopic rod (2) is used for adjusting the distance between the base (1) and the telescopic rod (2), and the base (1) is provided with a vertical surface for vertically placing the image information collecting device; The portable image information collecting device further comprises a laser generator (4), a horizontal light shield (7) and a light path indicating device (5), the laser generator (4) comprises a plurality of annularly arranged laser heads (40), the horizontal light shield (7) comprises light shielding liquid drops (76), a light shielding plate (70) and light transmission holes (71), the horizontal light shield (7) is fixed to the collecting device (3), the light transmission holes (71) are arranged along the edge of the light shielding plate (70), the light transmission holes (71) correspond to the positions of the laser heads (40) in the vertical space, and the light path indicating device (5) is located in the collecting device (3) and comprises an observation hole (50), a mirror (51) and a light path pipeline (52), the mirror (51) is arranged in the light path pipeline (52), the light path pipeline (52) is used for guiding laser to enter from the inlet of the light path pipeline (52) and irradiate to the observation hole (50), and the top of the collecting device (3) is a plane, and the observation hole (50) is located on the top plane of the collecting device (3). When the horizontal light shield (7) is horizontal, the light shielding liquid drops (76) are located in the middle of the light shielding plate (70), the light shielding liquid drops (76) do not coincide with the light transmission holes (71), the laser emitted from the laser heads (40) of the laser generator (4) can pass through the light transmission holes (71) and irradiate into the light path pipeline (52), is reflected by the mirror (51) and finally irradiates to the observation hole (50), and all the observation holes (50) at the top of the collecting device (3) are bright. When the horizontal light shield (7) is inclined, the light shielding liquid drops (76) move to the edge of the light shielding plate (70) under the action of gravity, the light shielding liquid drops (76) coincide with the light transmission holes (71), the laser irradiates on the light shielding liquid drops (76) through the light transmission holes (71), the light path is blocked, and one of the observation holes (50) at the top of the collecting device (3) is not bright.

2. The portable image information collection device of claim 1, wherein: The light shielding plate (70) is a conical surface, the middle of the light shielding plate (70) is slightly concave downward to form a horizontal groove (72), and the horizontal groove (72) is located at the lowest position of the light shielding plate (70).

3. The portable image information collection device of claim 1, wherein: The connecting position of the collecting device (3) and the telescopic rod (2) is provided with a bending joint (20), the collecting device (3) can be adjusted in the vertical direction through the bending joint (20) relative to the telescopic rod (2), and the laser generator (4) and the horizontal light shield (7) are located above the bending joint (20).

4. The portable image information collection apparatus according to claim 3, wherein: The base (1) is provided with a horizontal plane for horizontally placing the image information collecting device, and the base (1) is provided with an embedding groove (11), the collecting device (3) can be sent into the embedding groove (11) after being folded through the bending joint (20) and being shortened after the telescopic rod (2) is shortened, the telescopic rod (2) is shortened and is shortened into the base (1), and the collecting device (3) is attached and stacked above the base (1).

5. The portable image information collection device of claim 4, wherein: The base (1) and the collecting device (3) are provided with a fine adjustment mechanism (6), the fine adjustment mechanism (6) comprises a positioning ball groove (60), two lifting rods (62) and a positioning ball head (30), the lifting rod (62) is located on the surface of the base (1) where the embedding groove (11) is located, the positioning ball head (30) is located on the collecting device (3), and the positioning ball groove (60) is located behind the embedding groove (11); when the collecting device (3) is embedded into the embedding groove (11) of the base (1), the positioning ball head (30) is buckled into the positioning ball groove (60); the collecting device (3) can be rotated in the circumferential direction and the vertical direction of the positioning ball groove (60) through the positioning ball head (30), and the lifting rod (62) contacts the bottom surface of the collecting device (3).

6. The portable image information collection device of claim 5, wherein: The fine adjustment mechanism (6) further comprises an adjusting knob (61), and a linkage structure is arranged between the adjusting knob (61) and the lifting rod (62); when the adjusting knob (61) is rotated, the linkage structure drives the lifting rod (62) to ascend / descend.

7. The portable image information collection device of claim 1, wherein: The horizontal light shield (7) further comprises a transparent surrounding wall (73) and a diffusion part (74), the transparent surrounding wall (73) is annular and is made of transparent material, the transparent surrounding wall (73) is located on the side wall of the telescopic rod (2) and is arranged in the circumferential direction of the telescopic rod (2), and the diffusion part (74) is located in the transparent surrounding wall (73) and is made of a diffused translucent scattering material, and the diffusion part (74) is located corresponding to the light transmission hole (71).

8. The portable image information collection device of claim 1, wherein: The horizontal light shield (7) further comprises a transparent surrounding wall (73) and a diffusion part (74), the transparent surrounding wall (73) is annular and is made of transparent material, the transparent surrounding wall (73) is located on the side wall of the telescopic rod (2) and is arranged in the circumferential direction of the telescopic rod (2), and the diffusion part (74) is located in the transparent surrounding wall (73) and is made of a diffused translucent scattering material, and the diffusion part (74) is located corresponding to the light transmission hole (71); When the horizontal light shield (7) is horizontal, the light shielding liquid drop (76) is located in the middle of the light shielding plate (70), the light shielding liquid drop (76) is not coincided with the light transmission hole (71), and the laser emitted from the laser head (40) of the laser generator (4) can pass through the light transmission hole (71) and irradiate into the diffusion part (74), and all the diffusion parts (74) in the transparent surrounding wall (73) can be observed to be brightened; When the horizontal light shield (7) is inclined, the light shielding liquid drop (76) moves to the edge of the light shielding plate (70) under the action of gravity, the light shielding liquid drop (76) is coincided with the light transmission hole (71), the laser irradiates on the light shielding liquid drop (76) through the light transmission hole (71), the light path is blocked, and one of the diffusion parts (74) in the transparent surrounding wall (73) is not brightened.

9. The portable image information acquisition apparatus according to claim 7 or 8, wherein: The telescopic rod (2) further comprises an inner member (75) for fixing the horizontal shutter (7), the inner member (75) being made of transparent material.

Images