Ranging precision detection device for laser ranging
By designing a laser ranging accuracy detection device including a control device, a range measuring machine, a guide rail and a moving target, the problem of the distance measurement accuracy of the laser ranging device being difficult to accurately measure the dynamic target is solved, and efficient and accurate ranging accuracy detection is achieved.
Patent Information
- Application Number
- CN202421816974.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-30
AI Technical Summary
Existing laser ranging devices are difficult to accurately measure the ranging accuracy of dynamic targets because they cannot obtain the real distance value of the target in real time.
A distance measurement accuracy detection device including a control device, a distance measuring machine, a guide rail and a moving target is designed. The moving target moves along the guide rail, triggering distance measurement through the tablet, capturing the real position of the target during the movement, thereby obtaining distance measurement accuracy.
By comparing the real distance value and the measured value obtained by the ranging module, the distance measurement accuracy of the laser ranging device when measuring moving targets can be accurately evaluated, which improves the testing efficiency and accuracy.
Smart Images
Figure CN223022389U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser ranging module measurement, and particularly relates to a precision detection device for a device measuring a moving target. Background Art
[0002] A laser ranging device is an instrument that uses laser technology for ranging and is often used to measure the distance to an object. Among them, ranging accuracy is a key indicator to measure the ranging performance of a ranging module. For the ranging accuracy of measuring a static target, it can be obtained by comparing the measured value with the true distance value. For the ranging accuracy of measuring a dynamic target, it is difficult to obtain the ranging accuracy data because it is difficult to know the true distance value of the target at the time of measurement. Therefore, a ranging accuracy measurement device suitable for measuring a moving target by a laser ranging module is needed. Summary of the Utility Model
[0003] In view of this, to solve the above-mentioned deficiencies of the prior art, the purpose of the present utility model is to propose a ranging accuracy detection device for laser ranging, which can detect the accuracy of a laser ranging device for measuring a moving target, and effectively improves the test efficiency and accuracy.
[0004] To achieve the above purpose, the technical solution adopted by the present utility model is:
[0005] A ranging accuracy detection device for laser ranging, comprising a control device, a rangefinder electrically connected to the control device, a guide rail and a moving target. The moving target can move along the length direction of the guide rail. The control device is electrically connected to the rangefinder. The guide rail is connected to the control device through a wire to form a triggerable path. A plurality of pressure plates for controlling the conduction of the triggerable path are evenly and equidistantly arranged in the track of the guide rail. The rangefinder lens faces the moving target directly.
[0006] Further, the moving target includes a fixed target plate serving as a measurement target and a moving bracket for driving the fixed target plate to move. The fixed target plate is detachably connected to the moving bracket.
[0007] Furthermore, the rangefinder is arranged at one end of the guide rail, and the starting end of the moving target is arranged at the other end of the guide rail, and the position of the rangefinder lens corresponds to that of the fixed target plate.
[0008] Further, the guide rail is formed by splicing a plurality of metal guide rails end to end.
[0009] Further, one end of the wire is electrically connected to the contact of the guide rail, and the other end is electrically connected to the control device.
[0010] Furthermore, a support wheel matching the guide rail track is provided at the bottom end of the moving bracket.
[0011] Further, the mobile support is provided with auxiliary wheels for maintaining balance.
[0012] Further, the guide rails are two parallel guide rails, and the distance between the two guide rails is equal to the distance between the support wheels on both sides of the mobile support.
[0013] Advantages of the utility model:
[0014] In the utility model, a pressing piece is arranged on the guide rail. When the moving target moves along the metal guide rail, the pressing piece is pressed down to trigger ranging, and the position of the target at the moment when the ranging module measures the distance during the movement process is captured, so as to obtain the true value of the measured distance. By comparing the true distance value with the measured value obtained by triggering the ranging of the ranging module, the ranging accuracy of the ranging device for measuring the moving target can be known, and the test efficiency and accuracy are effectively improved.
[0015] The track is composed of multiple sections spliced together. The device is simple to operate, can be spliced and disassembled efficiently and quickly, and can flexibly adjust the track length and select pressing pieces with different spacings according to requirements, with stronger applicability. Description of the drawings
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 It is a schematic structural diagram of the measuring device of the present utility model;
[0018] Figure 2 Schematic structural diagram of the guide rail of the measuring device of the present utility model;
[0019] Figure 3 Schematic structural diagram of the moving target of the measuring device of the present utility model;
[0020] The reference numerals are as follows: 1, rangefinder; 2, tripod; 3, wire; 4, guide rail; 5, pressing piece; 6, support wheel; 7, mobile support; 8, target board. Detailed implementation manners
[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.
[0022] Specific embodiments are given below to further clearly, completely and detailedly illustrate the technical solution of the present utility model. This embodiment is the best embodiment based on the technical solution of the present utility model, but the protection scope of the present utility model is not limited to the following embodiments.
[0023] Embodiment 1
[0024] A ranging accuracy detection device for laser ranging includes a control device, a rangefinder electrically connected to the control device, a guide rail and a moving target. The moving target can move along the length direction of the guide rail. The guide rail is connected to the control device through a wire to form a triggerable path. A plurality of pressing pieces for controlling the conduction of the triggerable path are evenly arranged at equal intervals in the track of the guide rail. The rangefinder is arranged at one end of the guide rail, supported by a tripod and its height can be adjusted. The starting end of the moving target is arranged at the other end of the guide rail, and the position of the ranging lens corresponds to that of the fixed target plate of the moving target. The present utility model is composed of multiple components spliced together. The metal guide rail is connected to the wire to form a triggerable path. The movable target is placed on the metal guide rail. When the moving target passes through the pressing piece during the movement, the pressing piece will be pressed down, the circuit is conducted, and the ranging is triggered; when the wheel continues to move, the pressing piece bounces up and the circuit is disconnected; the distance between the moving target and the ranging module is the true distance value. By comparing it with the measured value obtained by triggering the ranging of the ranging module, the ranging accuracy of the ranging device for measuring moving targets can be known.
[0025] Further, the moving target includes a fixed target plate as the target and a moving bracket for driving the fixed target plate to move. The fixed target plate is detachably connected to the moving bracket.
[0026] Further, the guide rail is spliced by connecting the ends of multiple sections of metal guide rails. Connect the ends of multiple metal guide rails according to the required distance to obtain the required length, and the length can be adjusted according to the ranging requirements.
[0027] Further, one end of the pressing piece is tilted up when not under pressure, and the triggerable path is disconnected. The metal pressing pieces can be set at different distances as needed. Furthermore, the tilting direction of the pressing piece is the same as the moving direction of the moving target. If the moving target moves from right to left along the track length direction, the left side of the pressing piece is tilted up.
[0028] Further, one end of the wire is electrically connected to the contact of the guide rail, and the other end is electrically connected to the control device.
[0029] Furthermore, the bottom end of the moving bracket is provided with support wheels that cooperate with the guide rail track.
[0030] Furthermore, the moving bracket is provided with auxiliary wheels for maintaining balance. The guide rails are two parallel guide rails, and the distance between the two guide rails is equal to the distance between the support wheels on both sides of the moving bracket.
[0031] The working principle of the present utility model is as follows:
[0032] The present utility model adjusts the track length according to the ranging requirement. If it is necessary to adjust the distance of the pressing piece, a track with pressing pieces of different specifications can be selected to meet different requirements. The metal guide rail is connected to the control device through a wire to form a triggerable circuit. When the moving target moves from one end of the guide rail to the other end, it will press down the pressing piece when passing through it, the circuit is turned on, and the control device sends a signal to control the rangefinder to perform ranging. When the moving target continues to move forward, the pressing piece bounces up and the circuit is disconnected. When it moves to the next pressing piece, ranging is triggered again;
[0033] When the wheel presses down the pressing piece, the distance between the movable target and the ranging module is the true distance value (i.e., the distance at the position where the pressing piece is located). By comparing it with the measured value obtained by triggering the ranging of the ranging module, the ranging accuracy can be known.
[0034] In summary, a ranging accuracy detection device for laser ranging of the present utility model is simple to operate, can be efficiently and quickly spliced and disassembled. When the target moves along the metal guide rail, it presses down the pressing piece to trigger ranging, captures the true position and ranging position of the moving target during the movement process, thereby obtaining the ranging accuracy of the ranging device, and meets the need for measuring the ranging accuracy of the moving target.
[0035] The above shows and describes the main features, basic principles and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements according to the actual situation. These changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A laser ranging accuracy detection device, characterized in that: The invention comprises a control device, a rangefinder electrically connected to the control device, a guide rail and a moving target, wherein the moving target can move along the length direction of the guide rail, the control device is electrically connected to the rangefinder, the guide rail is connected to the control device through a wire to form a triggerable path, a plurality of pressure plates for controlling the conduction of the triggerable path are evenly and equidistantly arranged in the track of the guide rail, and the rangefinder lens faces the moving target.
2. The laser ranging accuracy detection device according to claim 1, characterized in that: The mobile target comprises a fixed target plate as a measurement target and a mobile bracket for driving the fixed target plate to move, and the fixed target plate and the mobile bracket are detachably connected.
3. The laser ranging accuracy detection device according to claim 2, characterized in that: The rangefinder is arranged at one end of the guide rail, the starting end of the moving target is arranged at the other end of the guide rail, and the position of the rangefinder lens corresponds to that of the fixed target plate.
4. The laser ranging accuracy detection device according to claim 2, characterized in that: The bottom end of the movable bracket is provided with a supporting wheel matched with the guide rail.
5. The laser ranging accuracy detection device according to claim 2, characterized in that: The mobile support is provided with auxiliary wheels for maintaining balance.
6. The laser ranging accuracy detection device according to claim 1, characterized in that: The guide rail is formed by splicing a plurality of sections of metal guide rails end to end.
7. The laser ranging accuracy detection device according to claim 4, characterized in that: The guide rails are two guide rails arranged in parallel, and the distance between the two guide rails is equal to the distance between the supporting wheels on both sides of the mobile bracket.
8. The laser ranging accuracy detection device according to claim 6, characterized in that: One end of the wire is electrically connected to the contact of the guide rail, and the other end is electrically connected to the control device.