A high-precision laser range finder suitable for cruise ranging

Abstract

The utility model provides a kind of high-precision laser range finder suitable for cruise ranging, it is related to laser range finder technical field, including main body, optical assembly and electric control assembly, the optical assembly includes long-distance emission module, short-distance emission module and receiving module, the long-distance emission module the short-distance emission module and the receiving module are arranged side by side on the main body;The long-distance emission module the short-distance emission module and the receiving module are electrically connected with the electric control assembly;The utility model is in one aspect by long-distance emission module and short-distance emission module, respectively realize long-distance scene and short-distance scene under high-precision ranging, can effectively cover various distance measurement requirements possibly encountered in cruise process, ranging coverage is extensive, on the other hand, optical assembly and electric control assembly are integrated on the main body, on the basis of guaranteeing ranging effect, can effectively optimize equipment overall layout, reduce volume, facilitate installation and use on various cruise platforms.

Description

Technical Field

[0001] This utility model relates to the field of laser rangefinder technology, specifically to a high-precision laser rangefinder suitable for cruise ranging. Background Technology

[0002] In fields such as cruise detection, mobile platform navigation, and security patrol, laser rangefinders serve as crucial distance sensing devices, requiring adaptability to measure targets at varying distances in complex environments. Currently, most cruise laser rangefinders employ a single transmitting module design, which presents significant limitations in practical applications: when facing distant targets, insufficient transmitting module power or mismatched beam characteristics result in weak reflected signals, making stable measurements difficult; conversely, for close-range targets, excessive transmitting module energy can easily cause signal saturation at the receiver, affecting measurement accuracy.

[0003] Some devices attempt to accommodate different distance measurements by adjusting emission parameters, but this often requires complex adjustment mechanisms. This not only increases the design complexity and cost of the equipment but may also prolong response time, failing to meet the real-time ranging requirements in cruise scenarios. Furthermore, the insufficient coordination between the optical and control components of traditional laser rangefinders also affects overall measurement performance, making it difficult to maintain stable and reliable ranging results in diverse cruise environments. Utility Model Content

[0004] The purpose of this utility model is to provide a high-precision laser rangefinder suitable for cruise ranging, so as to solve the above-mentioned technical problems existing in the prior art; the preferred technical solutions among the many technical solutions provided by this utility model can produce many technical effects, which are described in detail below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a high-precision laser rangefinder suitable for cruise ranging, comprising a main body, optical components, and electronic control components. The optical components include a long-range transmitting module, a short-range transmitting module, and a receiving module. These modules are arranged side-by-side on the main body. The long-range and short-range transmitting modules are used to transmit a long-range laser beam and a short-range laser beam, respectively, and the receiving module is used to receive both the long-range and short-range laser beams. All three modules are electrically connected to the electronic control components.

[0007] Preferably, the long-range transmitting module includes a long-range transmitting antenna and a long-range laser transmitter, wherein: both the long-range transmitting antenna and the long-range laser transmitter are disposed on the main body; the long-range laser transmitter is disposed at the rear end of the long-range transmitting antenna and is electrically connected to the electronic control component.

[0008] Preferably, the main body is provided with a first beam channel, and the long-range transmitting antenna includes a long-range transmitting large objective lens, a long-range transmitting small objective lens, and a long-range transmitting eyepiece, which are arranged sequentially from front to back within the first beam channel.

[0009] Preferably, the near-field transmission module includes a near-field transmission antenna and a near-field laser transmitter, wherein: both the near-field transmission antenna and the near-field laser transmitter are disposed on the main body; the near-field laser transmitter is disposed at the rear end of the near-field transmission antenna and is electrically connected to the electronic control component.

[0010] Preferably, the main body is provided with a second beam channel, and the close-range transmitting antenna includes a close-range transmitting objective lens and a close-range transmitting eyepiece that are arranged sequentially from front to back within the second beam channel.

[0011] Preferably, the electronic control component includes a laser power supply circuit component, wherein: both the long-range laser emitter and the short-range laser emitter are electrically connected to the laser power supply circuit component, and the laser power supply circuit component can control the opening and closing of the long-range laser emitter and the short-range laser emitter.

[0012] Preferably, the receiving module includes a receiving antenna and a detector assembly, wherein: both the receiving antenna and the detector assembly are disposed on the main body; the detector assembly is disposed at the rear end of the receiving antenna and is electrically connected to the electronic control assembly.

[0013] Preferably, a third beam channel is provided within the main body, and the receiving antenna includes a large receiving objective lens, a middle receiving objective lens, and a filter arranged sequentially from front to back within the third beam channel.

[0014] Preferably, the electronic control assembly includes a control and information processing circuit assembly, a long-range optical sampler, and a short-range optical sampler, wherein: the long-range optical sampler is disposed on the main body at a position corresponding to the long-range transmitting antenna; the short-range optical sampler is disposed on the main body at a position corresponding to the short-range transmitting antenna; the long-range optical sampler, the short-range optical sampler, and the detector assembly are all electrically connected to the control and information processing circuit assembly, and the control and information processing circuit assembly can calculate the target distance based on the transmitted and received information.

[0015] Preferably, the control and information processing circuit assembly and the laser power supply circuit assembly are disposed opposite to each other on both sides of the main body.

[0016] This utility model provides a high-precision laser rangefinder suitable for cruise ranging, which has at least the following features:

[0017] Beneficial effects:

[0018] I. Achieve accurate distance measurement across the entire range:

[0019] By setting up independent long-range and short-range transmission modules, the laser emission characteristics can be optimized for long-range and short-range targets respectively, avoiding the measurement defects of a single module at different distances. This enables the device to achieve high-precision ranging in both long-range and short-range scenarios, effectively covering various distance measurement needs that may be encountered during cruise.

[0020] II. Improve equipment response and collaborative performance:

[0021] The long-range transmitting module, short-range transmitting module, and receiving module are all directly electrically connected to the electronic control unit, simplifying the signal transmission path and improving the coordination efficiency between modules. The electronic control unit can quickly switch working modules according to actual ranging requirements, reducing the delay caused by traditional adjustment mechanisms and enhancing the real-time response capability of the equipment in dynamic cruise scenarios.

[0022] III. Enhancing equipment adaptability and reliability:

[0023] The optical components adopt an integrated structure arranged in parallel, which not only helps to optimize the overall layout of the equipment and reduce its size, but also makes it easier to install and use on various cruise platforms. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 and Figure 2 This is a schematic diagram of the structure of this utility model from one perspective;

[0026] Figure 3 This is a structural schematic diagram from another perspective of the present invention;

[0027] Figure 4 This is a cross-sectional schematic diagram of the launching module of this utility model;

[0028] Figure 5 This is a cross-sectional schematic diagram of the receiving module of this utility model;

[0029] Figure 6 This is the distance measurement logic block diagram of this utility model.

[0030] Figure Labels

[0031] 1. Main body; 11. First beam channel; 12. Second beam channel; 13. Third beam channel; 2. Optical components; 21. Long-range transmission module; 211. Long-range transmission antenna; 2111. Long-range transmission large objective lens; 2112. Long-range transmission small objective lens; 2113. Long-range transmission eyepiece; 212. Long-range laser transmitter; 22. Short-range transmission module; 221. Short-range transmission antenna; 2211. Short-range transmission large objective lens; 2212. Short-range transmission eyepiece; 222. Short-range laser transmitter; 23. Receiving module; 231. Receiving antenna; 2311. Receiving large objective lens; 2312. Receiving medium objective lens; 2313. Filter; 232. Detector assembly; 3. Electrical control components; 31. Laser power supply circuit assembly; 32. Control and information processing circuit assembly; 33. Long-range light sampler; 34. Short-range light sampler. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] Example 1:

[0034] This invention provides a high-precision laser rangefinder suitable for cruise ranging, reference Figures 1 to 6 As shown, the high-precision laser rangefinder suitable for cruise ranging includes a main body 1, an optical component 2, and an electronic control component 3.

[0035] The optical component 2 includes a long-range transmitting module 21, a short-range transmitting module 22, and a receiving module 23. The long-range transmitting module 21, the short-range transmitting module 22, and the receiving module 23 are arranged side by side on the main body 1. The long-range transmitting module 21 and the short-range transmitting module 22 are both laser transmitting modules, which are used to transmit long-range laser beams and short-range laser beams, respectively. The receiving module 23 is used to receive the long-range laser beams and the short-range laser beams. The long-range transmitting module 21, the short-range transmitting module 22, and the receiving module 23 are all electrically connected to the electronic control component 3.

[0036] In practical applications, at long distances, the electronic control component 3 controls the long-distance transmitting module 21 to emit a long-distance laser beam. After the long-distance laser beam contacts the target object, it is reflected. Then, the receiving module 23 receives the reflected long-distance laser beam. The electronic control component 3 analyzes the information of the long-distance laser beam's emission, propagation, and reception and calculates the corresponding distance.

[0037] At close range, the electronic control component 3 controls the close range transmitting module 22 to emit a close-range laser beam. After the close-range laser beam contacts the target, it is reflected. Then, the receiving module 23 receives the reflected close-range laser beam. The electronic control component 3 analyzes the information of the close-range laser beam emission-propagation-reception and calculates the corresponding distance.

[0038] This invention, on the one hand, achieves high-precision ranging in long-range and short-range scenarios through the long-range transmission module 21 and the short-range transmission module 22, respectively, which can effectively cover various distance measurement needs that may be encountered during the cruise and has a wide ranging coverage. On the other hand, the optical component 2 is integrated on the main body 1, which can effectively optimize the overall layout of the equipment, reduce the size, and facilitate installation and use on various cruise platforms while ensuring the ranging effect.

[0039] Example 2:

[0040] Example 2 is based on Example 1:

[0041] like Figures 1 to 6 As shown, the long-range transmitting module 21 includes a long-range transmitting antenna 211 and a long-range laser transmitter 212.

[0042] Both the long-range transmitting antenna 211 and the long-range laser transmitter 212 are mounted on the main body 1; the long-range laser transmitter 212 is located at the rear end of the long-range transmitting antenna 211 and is electrically connected to the electronic control component 3.

[0043] The long-range transmitting antenna 211 and the long-range laser transmitter 212 are integrated on the main body 1, enabling the long-range laser beam generated by the long-range laser transmitter 212 to be output in a directional manner, thereby effectively reducing energy loss during transmission. At the same time, the long-range laser transmitter 212 is directly electrically connected to the electronic control component 3, which can ensure the precise control of the long-range laser emission by the electronic control signal and improve the stability and response speed of the signal during long-range measurement.

[0044] As an optional implementation, the main body 1 is provided with a first beam channel 11, and the long-range emission module 21 includes a long-range emission large objective lens 2111, a long-range emission small objective lens 2112 and a long-range emission eyepiece 2113 arranged sequentially from front to back in the first beam channel 11.

[0045] Specifically, the long-range emission large objective lens 2111, the long-range emission small objective lens 2112, and the long-range emission eyepiece 2113 are respectively installed in their respective positions using corresponding pressure rings.

[0046] The long-range transmitting large objective lens 2111, the long-range transmitting small objective lens 2112, and the long-range transmitting eyepiece 2113 work together to focus, expand, and calibrate the laser beam, optimize the directionality and energy concentration of the long-range laser, and further improve the accuracy and effective detection range of long-range ranging.

[0047] As an optional implementation, the near-field transmission module 22 includes a near-field transmission antenna 221 and a near-field laser transmitter 222.

[0048] Both the short-range transmitting antenna 221 and the short-range laser transmitter 222 are mounted on the main body 1; the short-range laser transmitter 222 is located at the rear end of the short-range transmitting antenna 221 and is electrically connected to the electronic control assembly 3.

[0049] The near-range transmitting antenna 221 and the near-range laser transmitter 222 are integrated on the main body 1. This allows the laser beam generated by the near-range laser transmitter 222 to be output in a directional manner, which can effectively reduce energy loss during transmission. At the same time, the near-range laser transmitter 222 is directly electrically connected to the electronic control component 3, which ensures the precise control of the near-range laser emission by the electronic control signal, avoids the problem of reception saturation caused by excessively strong signals during near-range measurement, and improves the stability of near-range ranging.

[0050] As an optional implementation, the main body 1 is provided with a second beam channel 12, and the close-range transmitting antenna 221 includes a close-range transmitting objective lens 2211 and a close-range transmitting eyepiece 2212 that are arranged sequentially from front to back within the second beam channel 12.

[0051] The close-range emission objective lens 2211 and the close-range emission eyepiece 2212 are arranged sequentially along the optical path, which can specifically optimize the divergence angle and energy distribution of the close-range laser beam, avoid excessive concentration of laser energy during close-range measurement, and improve the accuracy and reliability of close-range ranging.

[0052] As an optional implementation, the electronic control assembly 3 includes a laser power supply circuit assembly 31, and both the long-range laser emitter 212 and the short-range laser emitter 222 are electrically connected to the laser power supply circuit assembly 31.

[0053] In practical applications, the laser power supply circuit assembly 31 controls the opening and closing of the long-range laser emitter 212 and the short-range laser emitter 222 according to the actual working conditions. While ensuring the ranging effect, it reduces the overall energy consumption and the service life of the laser ranging, adapting to the long-term working requirements of the cruise scenario.

[0054] Optionally, the long-range transmission module 21 measures the distance to a target object at a distance of more than 1,000m, and the short-range transmission module 22 measures the distance to a target object at a distance of less than 1,000m.

[0055] As an optional implementation, the receiving module 23 includes a receiving antenna 231 and a detector assembly 232, both of which are disposed on the main body 1; the detector assembly 232 is disposed at the rear end of the receiving antenna 231 and is electrically connected to the electronic control assembly 3.

[0056] The receiving antenna 231 serves as the carrier for signal capture, ensuring the reception range of the reflected laser signal and guaranteeing the signal reception effect. The detector assembly 232 is located at the rear end of the receiving antenna 231 and can perform photoelectric conversion on the signal captured by the receiving antenna 231, thereby transmitting it to the electronic control assembly 3 for subsequent distance analysis and calculation.

[0057] As an optional implementation, the main body 1 is provided with a third beam channel 13, and the receiving antenna 231 includes a large receiving objective lens 2311, a middle receiving objective lens 2312 and a filter 2313 arranged sequentially from front to back within the third beam channel 13.

[0058] The large receiving objective lens 2311 and the medium receiving objective lens 2312 work together to precisely focus the reflected laser signal, ensuring that the signal is transmitted to subsequent components in a clear form. At the same time, the filter 2313 can filter out stray light in the environment, reduce the interference of stray light on the effective laser signal, improve the purity of the received signal, and provide high-quality data for high-precision ranging.

[0059] As an optional implementation, the electronic control component 3 includes a control and information processing circuit component 32, a long-range light sampler 33, and a short-range light sampler 34.

[0060] The long-range optical sampler 33 is set on the main body 1 at the position corresponding to the long-range transmitting antenna 211; the short-range optical sampler 34 is set on the main body 1 at the position corresponding to the short-range transmitting antenna 221. The long-range optical sampler 33, the short-range optical sampler 34 and the detector assembly 232 are all electrically connected to the control and information processing circuit assembly 32.

[0061] By setting up a long-range optical sampler 33 and a short-range optical sampler 34, laser emission information (such as emission time and power) from the long-range and short-range emission modules is collected respectively, and transmitted together with the reception information (such as reception time and signal strength) collected by the detector assembly 232 to the control and information processing circuit assembly 32. Based on the time difference between emission and reception, signal attenuation and other data, combined with the laser propagation speed, the control and information processing circuit assembly 32 can accurately calculate the target distance.

[0062] The long-range optical sampler 33 and the short-range optical sampler 34 are existing technologies, and their detailed structures will not be described in detail. The laser power supply circuit assembly 31 and the control and information processing circuit assembly 32 are existing technologies, and their circuit diagrams will not be described in detail.

[0063] As an optional implementation, the control and information processing circuit assembly 32 and the laser power supply circuit assembly 31 are disposed opposite each other on both sides of the main body 1.

[0064] This setup optimizes the device's structural layout, making it compact and orderly. Furthermore, the relatively independent positions of the two circuit components facilitate heat dissipation and subsequent maintenance. It also balances the weight distribution of the main body, resulting in a more even weight distribution and thus improving the flight or driving stability of the cruise equipment and enhancing the compatibility between the rangefinder and the cruise equipment.

[0065] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0067] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0068] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-precision laser rangefinder suitable for cruise ranging, characterized in that, It includes the main body, optical components, and electronic control components, among which: The optical component includes a long-range transmitting module, a short-range transmitting module, and a receiving module. The long-range transmitting module, the short-range transmitting module, and the receiving module are arranged side by side on the main body. The long-range transmitting module and the short-range transmitting module are used to transmit a long-range laser beam and a short-range laser beam, respectively. The receiving module is used to receive the long-range laser beam and the short-range laser beam. The long-range transmitting module, the short-range transmitting module, and the receiving module are all electrically connected to the electronic control assembly.

2. The high-precision laser rangefinder suitable for cruise ranging according to claim 1, characterized in that, The long-range transmission module includes a long-range transmission antenna and a long-range laser transmitter, wherein: Both the long-range transmitting antenna and the long-range laser transmitter are mounted on the main body; The long-range laser transmitter is located at the rear end of the long-range transmitting antenna and is electrically connected to the electronic control assembly.

3. The high-precision laser rangefinder suitable for cruise ranging according to claim 2, characterized in that, The main body is provided with a first beam channel, and the long-range transmitting antenna includes a long-range transmitting large objective lens, a long-range transmitting small objective lens, and a long-range transmitting eyepiece, which are arranged sequentially from front to back within the first beam channel.

4. The high-precision laser rangefinder suitable for cruise ranging according to claim 2, characterized in that, The near-field transmission module includes a near-field transmission antenna and a near-field laser transmitter, wherein: Both the near-range transmitting antenna and the near-range laser emitter are mounted on the main body; The near-field laser emitter is located at the rear end of the near-field transmitting antenna and is electrically connected to the electronic control assembly.

5. The high-precision laser rangefinder suitable for cruise ranging according to claim 4, characterized in that, The main body is provided with a second beam channel, and the close-range transmitting antenna includes a close-range transmitting objective lens and a close-range transmitting eyepiece that are arranged sequentially from front to back within the second beam channel.

6. The high-precision laser rangefinder suitable for cruise ranging according to claim 4, characterized in that, The electronic control assembly includes a laser power supply circuit assembly, wherein: Both the long-range laser emitter and the short-range laser emitter are electrically connected to the laser power supply circuit assembly, which can control the opening and closing of the long-range laser emitter and the short-range laser emitter.

7. The high-precision laser rangefinder for cruise ranging according to claim 6, characterized in that, The receiving module includes a receiving antenna and a detector assembly, wherein: Both the receiving antenna and the detector assembly are mounted on the main body; The detector assembly is located at the rear end of the receiving antenna and is electrically connected to the electronic control assembly.

8. The high-precision laser rangefinder for cruise ranging according to claim 7, characterized in that, The main body is provided with a third beam channel, and the receiving antenna includes a large receiving objective lens, a middle receiving objective lens, and a filter arranged sequentially from front to back within the third beam channel.

9. The high-precision laser rangefinder for cruise ranging according to claim 8, characterized in that, The electronic control assembly includes a control and information processing circuit assembly, a long-range optical sampler, and a short-range optical sampler, wherein: The long-range optical sampler is disposed on the main body at a position corresponding to the long-range transmitting antenna; The near-field optical sampler is positioned on the main body at a location corresponding to the near-field transmitting antenna; The long-range optical sampler, the short-range optical sampler, and the detector assembly are all electrically connected to the control and information processing circuit assembly, which can calculate the target distance based on the transmitted and received information.

10. The high-precision laser rangefinder for cruise ranging according to claim 9, characterized in that, The control and information processing circuit assembly and the laser power supply circuit assembly are arranged opposite each other on both sides of the main body.

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