Laser radar protection system for measurement

Abstract

The utility model provides a laser radar protection system for measurement, which comprises a base upper part connecting platform, vertical supporting plates are connected around the base upper part connecting platform, and a vertical curved protection plate is fixed between the vertical sides of two adjacent vertical supporting plates. A transverse curved protection plate is fixed between the curved sections of every two adjacent vertical supporting plates, a leather sheath protection layer is installed at the junction of the vertical curved protection plates and the transverse curved protection plates, a cylindrical protection wall is connected to the upper portion of the base upper connecting platform, and an aperture bearing table is connected to the upper portion of the cylindrical protection wall; the laser aperture is supported by the laser aperture wall, and the laser is arranged below the laser aperture. The vertical supporting plate, the vertical curved protection plate and the transverse curved protection plate are connected to the connecting platform on the upper portion of the base, fine flying sand, stones and rainwater can be shielded, full wrapping is achieved, safety of equipment is guaranteed to the maximum extent, and economical and practical effects are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser radars, and in particular relates to a laser radar protection system for measurement. Background Art

[0002] In the early days, LiDAR was mainly used in military and civilian geographic surveying and mapping, such as geological surveying, monitoring tree growth, measuring the progress of construction projects, etc. With the continuous development of point cloud data processing technology, the use of airborne LiDAR equipment in surveying and mapping work is developing towards normalization and standardization.

[0003] However, actual production practices have also exposed some problems with existing LiDAR equipment, such as rapid changes in outdoor weather and sudden rain that can easily corrode instrument wiring ports, circuit boards and other key components, and even cause short circuits and dangers. At the same time, if a drone rolls over or collides during takeoff and landing, the unprotected LiDAR equipment will be severely damaged. In addition, there is a lack of real-time dynamic data collection results during actual operations, and a lack of real-time and correct evaluation of data collection quality. After the operation is completed, problems are discovered during the internal processing stage, and it is necessary to return to the operation site for re-measurement, which seriously affects work efficiency and increases time and economic costs.

[0004] The difficulty of the intelligent laser radar measurement and protection system is mainly reflected in the very fast rate at which the laser radar acquires data. In order to realize the visualization of point cloud data, the amount of data transmitted per second is very large, and it is necessary to quickly, accurately and timely display the collected data to the surveyors. Therefore, the system should have good real-time performance; in order to minimize manual operation and reduce the burden on surveyors, the system should have a certain degree of intelligence and a good degree of automation. In addition, the system should have reliable security and good cost performance. Therefore, in terms of hardware, how to build a protective structure and select materials; in terms of software, how to improve the existing point cloud preprocessing method, while ensuring that the operating efficiency is met, and try to control the cost, is an urgent problem to be solved.

[0005] Based on this, a laser radar protection system for measurement is proposed. Utility Model Content

[0006] The technical problem to be solved by the present invention is to provide a laser radar protection system for measurement in view of the deficiencies of the above-mentioned prior art, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a laser radar protection system for measurement, comprising an upper connection platform of a base, the upper connection platform of the base is connected with a vertical support plate through screw holes and screws around, a vertical curved protection plate is fixed between the vertical sides of two adjacent vertical support plates, a horizontal curved protection plate is fixed between the curved sections of two adjacent vertical support plates, and a leather cover protection layer is installed at the junction of the vertical curved protection plate and the horizontal curved protection plate;

[0008] Any two mutually parallel vertical support plates are fixed with connecting rings on their outer sides, and the other two vertical support plates are provided with equipment interfaces, and the vertical support plates provided with equipment interfaces are also provided with indicator lights;

[0009] The upper part of the upper connecting platform of the base is connected to a cylindrical protective wall, the upper part of the cylindrical protective wall is connected to an aperture receiving platform, the upper part of the aperture receiving platform receives the laser aperture, the laser aperture is supported by the laser aperture wall, and there is a laser below the laser aperture.

[0010] As a further description of the present invention, the device interface is rectangular and is used to complete power transmission and information transfer. The device interface and the indicator light are used in conjunction with each other.

[0011] As a further illustration of the present invention, the laser aperture is a movable structure for changing the size of the exposed working area of ​​the laser. When the laser aperture is in a closed state, the exposed working area of ​​the laser is zero.

[0012] As a further description of the present invention, a closed aperture supporting cylindrical platform is provided at the center of the laser, and the laser aperture is used in conjunction with the closed aperture supporting cylindrical platform.

[0013] As a further illustration of the utility model, the cylindrical protective wall is composed of an air cushion layer, a polyether block amide layer and silica gel from the outside to the inside.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model is connected with a vertical support plate through screw holes and screws around the upper connecting platform of the base, a vertical curved protection plate is fixed between the vertical sides of two adjacent vertical support plates, a horizontal curved protection plate is fixed between the curved sections of two adjacent vertical support plates, a leather cover protection layer is installed at the junction of the vertical curved protection plate and the horizontal curved protection plate, and a cylindrical protection wall is connected to the upper part of the upper connecting platform of the base. The cylindrical protection wall is composed of an air cushion layer, a polyether block amide layer and silica gel from the outside to the inside, which can block fine flying sand and stones and rainwater, achieve full wrapping, and ensure the safety of the equipment to the greatest extent, and be economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side sectional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model from top view;

[0019] Figure 4 It is a side structural schematic diagram of the utility model.

[0020] Description of reference numerals:

[0021] 1-base upper connection platform; 2-screw hole; 3-screw; 4-vertical support plate; 5-connecting ring; 6-equipment interface; 7-indicator light; 8-vertical curved protection plate; 9-lateral curved protection plate; 10-leather case protection layer; 11-cylindrical protection wall; 12-aperture receiving platform; 13-laser aperture; 14-laser aperture wall; 15-laser; 16-closed aperture support cylindrical platform; 17-air cushion; 18-polyether block amide; 19-silicone. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, the utility model provides a technical solution: a laser radar protection system for measurement, comprising a base upper connection platform 1, the base upper connection platform 1 is connected with a vertical support plate 4 through screw holes 2 and screws around, a vertical curved protection plate 8 is fixed between the vertical sides of two adjacent vertical support plates 4, a horizontal curved protection plate 9 is fixed between the curved sections of two adjacent vertical support plates 4, and a leather cover protection layer 10 is installed at the junction of the vertical curved protection plate 8 and the horizontal curved protection plate 9;

[0024] A connecting ring 5 is fixed to the outer side of any two mutually parallel vertical support plates 4, and a device interface 6 is provided on the other two vertical support plates 4. An indicator light 7 is also provided on the vertical support plate 4 provided with the device interface 6. The device interface 6 is rectangular and is used to complete power transmission and information transmission. The device interface 6 and the indicator light 7 are used in conjunction with each other.

[0025] The upper part of the base upper connection platform 1 is connected with a cylindrical protection wall 11 , and the cylindrical protection wall 11 is composed of an air cushion layer 17 , a polyether block amide layer 18 and a silica gel 19 from the outside to the inside.

[0026] An aperture receiving platform 12 is connected to the upper part of the cylindrical protective wall 11 , and the upper part of the aperture receiving platform 12 receives a laser aperture 13 . The laser aperture 13 is supported by a laser aperture wall 14 . Below the laser aperture 13 is a laser 15 , and the laser 15 is electrically connected to the device interface 6 .

[0027] The laser aperture 13 is an aperture structure, that is, the laser aperture 13 is composed of a plurality of arc pieces, each arc piece has a rotating pair at the bottom, and an arc track in the middle, and the arc piece can be opened and closed while being driven by a small cylindrical pin to move along the arc track. The movement of the cylindrical pin is driven by an internal micro motor, which is fixed on the inner side of the aperture receiving platform 12 and connected to an arc piece at one end of the laser aperture 13 through a slender cylindrical rigid component, and the micro motor controls the extension and retraction of the slender cylindrical rigid component to drive the closing and opening of the arc piece.

[0028] It is used to change the size of the exposed working area of ​​the laser 15. When the laser aperture 13 is in a closed state, the exposed working area of ​​the laser 15 is 0.

[0029] A closed aperture supporting cylindrical platform 16 is disposed at the center of the laser 15 , and the laser aperture 13 is used in conjunction with the closed aperture supporting cylindrical platform 16 .

[0030] When the above-mentioned measurement and protection system for laser radar is used, the laser 15 based on the iToF detection method is first fixedly connected to the upper connection platform 1 of the base, and the photosensitive chip receives the returned laser, calculates the distance from the obstacle to the instrument, and generates a point cloud data packet .Las file.

[0031] The .Las data packet stores information such as the rotation angle, distance value, reflection intensity, coordinates, etc. of the laser beam. The .Las file content is transmitted to the mobile device App in real time in the form of a data stream. The point cloud data is thinned on the App, and the x, y, and z three-dimensional coordinate values ​​of the point cloud data are extracted and displayed in the App's visualization interface, realizing real-time visualization of the point cloud.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser radar protection system for measurement, characterized in that: It comprises a base upper connection platform (1), the base upper connection platform (1) is connected to a vertical support plate (4) via screw holes (2) and screws on all sides, a vertical curved protection plate (8) is fixed between the vertical sides of two adjacent vertical support plates (4), a transverse curved protection plate (9) is fixed between the curved sections of two adjacent vertical support plates (4), and a leather cover protection layer (10) is installed at the junction of the vertical curved protection plate (8) and the transverse curved protection plate (9); A connecting ring (5) is fixed on the outer side of any two mutually parallel vertical support plates (4), and a device interface (6) is provided on the other two vertical support plates (4), and an indicator light (7) is also provided on the vertical support plate (4) provided with the device interface (6); The upper part of the base upper connection platform (1) is connected to a cylindrical protective wall (11), the upper part of the cylindrical protective wall (11) is connected to an aperture receiving platform (12), the upper part of the aperture receiving platform (12) receives a laser aperture (13), the laser aperture (13) is supported by a laser aperture wall (14), a laser (15) is located below the laser aperture (13), and the laser (15) is electrically connected to a device interface (6).

2. A laser radar protection system for measurement according to claim 1, characterized in that: The device interface (6) is rectangular and is used to complete power transmission and information transmission. The device interface (6) and the indicator light (7) are used in conjunction with each other.

3. A laser radar protection system for measurement according to claim 1, characterized in that: The laser aperture (13) is an aperture structure used to change the size of the exposed working area of ​​the laser (15); when the laser aperture (13) is in a closed state, the exposed working area of ​​the laser (15) is 0.

4. A laser radar protection system for measurement according to claim 3, characterized in that: A closed aperture supporting cylindrical platform (16) is provided at the center of the laser (15), and the laser aperture (13) and the closed aperture supporting cylindrical platform (16) are used in conjunction with each other.

5. The laser radar protection system for measurement according to claim 1, characterized in that: The cylindrical protective wall (11) is composed of an air cushion layer (17), a polyether block amide layer (18) and silica gel (19) in sequence from the outside to the inside.

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