Large-range laser ranging and positioning instrument
By designing a long-range laser rangefinder and positioning instrument, and combining laser ranging, electronic compass and Beidou module, the problems of high equipment cost and complicated operation in complex positioning environments in existing technologies have been solved, and fast, stable and accurate remote target positioning has been achieved.
Patent Information
- Application Number
- CN202511299356.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-01-23
AI Technical Summary
Existing technologies for locating remote targets suffer from problems such as high equipment costs, complex operation, limited applicability, and low accuracy. In particular, they are difficult to achieve stable and rapid positioning in environments without clear fixed landmarks, such as grasslands and deep mountains.
A long-range laser rangefinder positioning device was designed, comprising a laser rangefinder module, an electronic compass module, an elevation angle module, and a BeiDou module. By installing the laser rangefinder module and the gun sight telescope in parallel, and combining them with an ARM main processor for data processing, positioning services are provided for various application scenarios.
It achieves fast, stable, and accurate remote target positioning in complex environments. It is easy to operate, adaptable to various occasions, has a fast positioning speed, provides comprehensive measurement results, has an anti-interference structure, low cost, and strong applicability.
Smart Images
Figure CN121385918A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of instrument equipment, in particular to a large range laser ranging positioning instrument. BACKGROUND
[0002] There is a need for positioning remote target position in civil and military fields, and the positioning methods include radar, unmanned aerial vehicle flight measurement, electronic map, etc., wherein the radar positioning scheme is relatively complex, and the equipment cost is also relatively high, which is limited in some civil occasions; if the unmanned aerial vehicle directly flies to the target point to measure the position, it is also limited by the environment, airspace, endurance, license and other conditions; the high-precision electronic map positioning method for long-distance coordinates is suitable for occasions with clear fixed markers, if the target features are not obvious (such as grassland, deep mountain, etc.), or temporary target objects, it is difficult to determine the target through human eye observation, and the deviation is large, so a large range laser ranging positioning instrument with good stability and simple operation is needed. SUMMARY
[0003] The present application provides a large range laser ranging positioning instrument with good stability and simple operation to solve the above problems in the prior art.
[0004] The purpose of the present application is achieved by the following technical solutions: A large range laser ranging positioning instrument, characterized by comprising: an instrument shell, a key, a display screen, a TYPE-C interface, a battery, a laser ranging module, a gun sighting telescope, a mainboard, an electronic compass module, and a pitch angle module, the laser ranging module and the gun sighting telescope are installed in parallel on the bottom plate of the instrument shell, the laser emitting lens and the laser receiving lens of the laser ranging module and the objective lens of the gun sighting telescope are arranged on the same side of the instrument shell, and the laser emitting lens is exposed through the rear panel of the instrument shell; the electronic compass module and the pitch angle module are respectively installed on the bottom plate on the left side of the gun sighting telescope; the battery is installed on the bottom plate on the left side of the laser ranging module; the mainboard and the display screen are installed on the front panel of the instrument shell and are on the same side as the eyepiece of the gun sighting telescope; the bottom plate, the front panel, the rear panel and the U-shaped plate are fastened together by screws to form the instrument shell, and the top of the U-shaped plate is provided with the key and a Beidou antenna.
[0005] The rear panel is also provided with a TYPE-C socket, and the U-shaped plate is provided with a handle on each side, and the bottom plate of the instrument shell is provided with a dovetail groove structure for connecting with other supports to realize fixed mode measurement and improve stability.
[0006] The laser ranging module is connected to the mainboard through a control line, and the electronic compass module and the pitch angle module are respectively connected to the mainboard through a control line.
[0007] The gun sighting telescope is provided with a built-in "cross" reticle for aiming at a target object.
[0008] The laser ranging module is composed of a laser emitting lens, a laser receiving lens and a ranging control board, the laser emitting lens and the laser receiving lens are connected to the ranging control board respectively, and the ranging control board is connected to a main board through a control line.
[0009] The electronic compass module is composed of a geomagnetic sensor U9 and a single-chip microcomputer U8, the geomagnetic sensor U9 is connected to the single-chip microcomputer U8, the single-chip microcomputer U8 on the electronic compass module obtains 0°-360° azimuth angle data through calibration and calculation, the azimuth angle data represents a current horizontal angle of the instrument relative to a target object, and the electronic compass module transmits the azimuth data to the main board in real time through a data line.
[0010] The pitch angle module is composed of an acceleration sensor U11 and a single-chip microcomputer U10, the acceleration sensor U11 is connected to the single-chip microcomputer U10, the acceleration sensor U11 senses the change of the gravitational acceleration of the instrument in the pitch direction, the acceleration data of the acceleration sensor U11 is converted into the angle data of the instrument in the pitch direction in the single-chip microcomputer U10, and the pitch angle data is transmitted to the main board in real time through a data line.
[0011] The main board is provided with an ARM main processor U1, a real-time clock U2, a storage chip U3, a power management chip U4, a display screen U5, a Beidou module U6 and a Bluetooth module U7, the ARM main processor U1 is connected with the real-time clock U2, the storage chip U3, the power management chip U4, the display screen U5, the Beidou module U6 and the Bluetooth module U7 respectively, the ARM processor U1 of the main board communicates with the laser ranging module, the electronic compass module, the pitch angle module and the Beidou module in real time, obtains distance data, azimuth angle data, pitch angle data and local positioning data, and displays the position data of the remote target on the screen through calculation of the ARM processor based on the data, and the position data can also be shared to other devices through Bluetooth.
[0012] The Beidou module U6 and the Bluetooth module U7 are installed on the main board, the Beidou module U6 can measure the positioning information of the instrument itself in real time, the Bluetooth module U7 transmits the measurement data to the instrument mobile terminal, and the Beidou module U6 and the Bluetooth module U7 are connected with the ARM main processor U1 on the main board.
[0013] The keys are connected with the main board through wires to realize the switching on and off of the instrument and the triggering of distance measurement, and the battery and the TYPE-C interface are connected to the main board through wires, the battery supplies power to each component of the instrument, and the TYPE-C interface is used for charging the battery. Advantageous effects
[0014] 1、The instrument can adapt to various application scenarios, has fast positioning speed and simple operation, does not need to be matched with other devices, and can complete the measurement of the remote position by using a single machine.
[0015] 2. The operation of this invention only requires one button. Press and hold this button to turn the instrument on or off, and press and hold this button briefly to take a measurement while aiming at the target. The operation method is extremely simple.
[0016] 3. The measurement results obtained by this invention include local coordinates, remote coordinates, slant distance, horizontal distance, azimuth angle, elevation angle and other data, providing users with more comprehensive location information.
[0017] 4. The bottom of this invention features a dovetail groove structure, allowing for both portable use and fixed mounting on a stand. A handle is installed on each side of the U-shaped plate, ensuring good stability and fast positioning. The laser rangefinder module is mounted parallel to the gun sight telescope, with the laser lens and gun sight objective lens exposed on the same side. Aiming and ranging are performed simultaneously, unaffected by the "weak signal failure" of electronic maps. It can still function normally in complex electromagnetic environments or areas without signal, and its structure is interference-resistant.
[0018] 5. This invention has significant advantages in terms of cost, applicable scenarios, measurement accuracy, and operation method, and can be applied in many situations. This invention provides a portable laser rangefinder for quickly acquiring the coordinates of remote targets; simply aim at the target and press the measurement button to obtain the remote target's position information.
[0019] 6. The positioning distance of this invention can be more than 10 kilometers, with a long measurement range. With simple operation, the latitude and longitude coordinates, slope distance, horizontal distance, azimuth and other positional parameters of the target point can be obtained quickly, providing comprehensive and accurate navigation information for other applications. Attached Figure Description
[0020] Appendix Figure 1 Front view of the present invention.
[0021] Appendix Figure 2 Rear view of the present invention.
[0022] Appendix Figure 3 Top view of the present invention.
[0023] Appendix Figure 4 Bottom view of the present invention.
[0024] Appendix Figure 5 The schematic diagram of the motherboard of this invention.
[0025] Appendix Figure 6 The schematic diagram of the Beidou module and Bluetooth module of this invention.
[0026] Appendix Figure 7 Schematic diagram of the electronic compass module of the present invention.
[0027] Appendix Figure 8 The schematic diagram of the laser ranging module of the present invention.
[0028] Appendix Figure 9The pitch angle module block diagram of the present application. DETAILED DESCRIPTION
[0029] The present application is further described in detail below with reference to the accompanying drawings and embodiments: Embodiment 1 A large range laser ranging positioner, which consists of: instrument shell 21, button 2, display screen 6, TYPE-C interface 12, battery 15, laser ranging module 16, gun sighting telescope 17, mainboard 18, electronic compass module 19, pitch angle module 20, the laser ranging module 16 and the gun sighting telescope 17 are installed in parallel on the bottom plate 14 of the instrument shell 21, the laser emitting lens 9 and the laser receiving lens 10 of the laser ranging module 16 and the objective lens 8 of the gun sighting telescope 17 are arranged on the same side of the instrument shell 21, the laser emitting lens 9 is exposed through the rear panel 11 of the instrument shell 21; the rear panel 11 is also provided with the TYPE-C socket 12, the electronic compass module 19 and the pitch angle module 20 are respectively installed on the bottom plate 14 left side of the gun sighting telescope 17; the battery 15 is installed on the bottom plate 14 left side of the laser ranging module 16; the mainboard 18 and the display screen 6 are installed on the front panel 4 of the instrument shell, which is on the same side with the ocular 7 of the gun sighting telescope 17; the bottom plate 14, the front panel 4, the rear panel 11 and the U-shaped plate 3 are fastened together by screws to form the instrument shell 21, the U-shaped plate 3 is provided with the button 2 and the Beidou antenna 5 on the top, and one handle 1 is installed on the left and right of the U-shaped plate 3, the bottom plate 14 of the instrument shell is provided with a dovetail groove 13 structure, which is used to connect with other supports to realize fixed mode measurement and improve stability, the gun sighting telescope 17 is provided with a built-in "cross" sight, through which the target object can be aimed.
[0030] The instrument shell 21 is composed of the bottom plate 14, the front panel 4, the rear panel 11 and the U-shaped plate 3 by screw fastening, compact structure and good sealing, the laser emission lens 9 is exposed only through the rear panel 11, the electronic compass 19 and the pitch angle module 20 are built-in the bottom plate 14, which can avoid direct abrasion of core components by field mud, rain and the like, and is more resistant to environmental erosion than the prior art "exposed sensor is easy to be damaged". In addition, the handle 1 of the U-shaped plate 3 is not only convenient for carrying, but also can form a "double-hand holding fulcrum" in the field, reducing the shaking of single-hand holding; when the dovetail groove 13 is connected with the support, the support counterweight can resist strong wind, and the stability is strong. The dovetail groove 13 of the instrument shell bottom plate 14 can be connected with the support to realize fixed measurement, improve the stability in strong wind and vibration environment, and the handles 1 on the left and right sides of the U-shaped plate 3 support handheld portable use, which is suitable for fixed monitoring scenes of border defense and forestry, and meets the mobile measurement demand of field exploration. The laser ranging module 16 and the gun sighting telescope 17 are installed in parallel, the laser lens and the gun sighting objective 8 are exposed on the same side, aiming and ranging are synchronized, are not affected by the "signal weak failure" of the electronic map, and can still work normally in a complex electromagnetic environment or a signal-free area, and the structure is anti-interference. The operation is convenient, only the keys 2 on the top of the U-shaped plate 3 are used to realize "long-pressing power on / off and short-pressing trigger measurement", single-key control, the gun sighting telescope 17 is built-in "cross" reticle, the target can be quickly locked, and it is more efficient, especially suitable for temporary targets.
[0031] Embodiment 2 A large-range laser ranging positioning instrument, the electrical schematic diagram of the laser ranging module 16 is Figure 8 The laser ranging module 16 is composed of the laser emission lens 9, the laser receiving lens 10 and the ranging control board 22, the laser emission lens 9 and the laser receiving lens 10 are connected with the ranging control board 22 respectively, the ranging control board 22 is connected with the main board 18 through 4 control lines, 2 of which are power lines, and the other 2 are communication lines, that is, transmitted to the main board 18 through the terminal P9, the main board 18 can control the power supply of the laser ranging module 16, and control the laser ranging module 16 to complete distance measurement.
[0032] The electrical schematic diagram of the laser ranging module 16 is Figure 8, the laser ranging module 16 includes laser emission lens 9, laser receiving lens 10, laser emission drive, laser thermal control circuit, laser receiving APD circuit, laser receiving signal shaping amplification, laser receiving signal pulse timing; the main controller of the laser ranging module drives the laser to emit a laser pulse from the laser emission lens 9 through the drive circuit, the laser pulse reflected by the target object is converged to the APD circuit through the laser receiving lens 10, the APD circuit converts the laser signal into an electrical signal, and then sends the pulse timer to calculate the time of laser transmission and reception, and the main control calculates the distance from the instrument to the target object according to the flight time of the laser; the distance data is transmitted to the mainboard 18 through terminal P9.
[0033] Embodiment 3 A large range laser ranging positioning instrument, the electrical schematic diagram of the electronic compass module 19 is Figure 7 , the electronic compass module 19 uses single-chip microcomputer U8 and geomagnetic sensor U9 to realize the function of electronic compass; the geomagnetic sensor U9 is a three-axis sensor, the geomagnetic sensor U9 is connected to the 32, 33 pins of the single-chip microcomputer U8 through the IIC bus, and the single-chip microcomputer U8 obtains three-axis magnetic field data through the software driver program, and the data acquisition rate is 200Hz, which can fully meet the needs of handheld measurement; the original data of the three-axis magnetic field can be converted into azimuth angle data in the single-chip microcomputer through calibration and calibration, and the azimuth angle data is transmitted to the mainboard through terminal P8.
[0034] Embodiment 4 A large range laser ranging positioning instrument, the electrical schematic diagram of the pitch angle module 20 is Figure 9 , the pitch angle module 20 uses single-chip microcomputer U10 and acceleration sensor U11 to realize the function of pitch angle measurement; the acceleration sensor U11 selects 2-axis, and the acceleration sensor U11 is connected to the single-chip microcomputer U10, which can measure acceleration data in the pitch direction ±90 range, and the refresh rate of the acceleration data can reach 1MHz, the single-chip microcomputer U10 processes the acceleration data into angle data, and the angle data is transmitted to the mainboard through terminal P7.
[0035] Embodiment 5 A large range laser ranging positioning instrument, the electrical schematic diagram of the mainboard 18 is Figure 5 and Figure 6 ; the mainboard 18 is provided with ARM main processor U1, real-time clock U2, storage chip U3, power management chip U4, display screen U5, Beidou module U6 and Bluetooth module U7.
[0036] The battery 15 is connected to the mainboard terminal P1, and further connected to the power management chip U4, which converts the battery voltage into two power supplies, one of which is used to supply the laser ranging module 16, and the other is used to supply the ARM main processor U1 and other circuits. The button 2 on the top of the instrument is connected to the mainboard terminal P2, and further connected to the 2-pin of the ARM main processor U1, which can control the on-off of the instrument and measurement. The real-time clock U2 and the storage chip U3 are connected to the 45, 46, 42, 43 pins of the ARM main processor U1 through the IIC interface respectively, which realizes the functions of data storage and real-time clock. The display screen U5 is connected to the 25, 26, 27, 28 pins of the ARM main processor U1 through the SPI interface, which realizes the function of LCD display. The Beidou module U6 is connected to the 15, 16, 17, 18 pins of the ARM main processor U1 through the SPI interface, which realizes the Beidou positioning. The S1 interface of the Beidou module U6 is connected to the Beidou antenna 5 on the top of the instrument shell. The Bluetooth module U7 is connected to the 39, 40 pins of the ARM main processor U1 through the UART3 interface, which realizes the Bluetooth communication function. The 30, 31 pins of the ARM main processor U1 are the UART0 interface, which is connected to the terminal P3 of the mainboard and connected to the laser ranging module 16 externally, which is used to control the laser ranging module to complete the ranging. The 5, 6 pins of the ARM main processor U1 are the UART1 interface, which is connected to the terminal P4 of the mainboard and connected to the electronic compass module 19 externally, which is used to realize the measurement of azimuth angle. The 13, 14 pins of the ARM main processor U1 are the UART2 interface, which is connected to the terminal P5 of the mainboard and connected to the pitch angle module 20 externally, which is used to realize the measurement of the pitch angle of the instrument. The 35, 36 pins of the ARM main processor U1 are the USB interface, which is connected to the terminal P6 of the mainboard and connected to the TYPE-C socket 12 externally, which is used to realize the charging of the battery. The ARM main processor U1 communicates with each module to obtain measurement data, and then fuses and solves the position data to display on the screen. The power management chip U4 of the mainboard 18 divides the battery 15 voltage into two paths: one is used to supply the laser ranging module 16, and the other is used to supply the ARM main processor U1 and other circuits. This design can cut off the power supply of the laser ranging module 16 in the non-measurement state (such as aiming process), and only keep the low-power operation of the electronic compass and pitch angle module, which greatly reduces the standby power consumption. The instrument realizes the long-term use of the battery 15 through shunt power supply, and the TYPE-C interface 12 is compatible with the field mobile power supply charging, which solves the pain point of "limited endurance" in the prior art.
[0037] The data refresh rate of the electronic compass module 19 reaches 200 Hz, and the pitch angle module 20 reaches 1 MHz, and both of them transmit data to the mainboard 18 in real time through control lines. When handheld measurement is performed, the high refresh rate is used to capture the slight hand jitter (such as shaking caused by field wind resistance and arm fatigue), and the ARM main processor U1 adjusts the trigger timing and data solving logic of the laser ranging in real time, so as to offset the influence of the jitter on the aiming accuracy. The instrument only needs to realize low-cost, lightweight anti-shake through the refresh rate of the modules, and is perfectly adapted to the handheld scene, and the accuracy is guaranteed.
[0038] The laser ranging module 16 is connected with the mainboard 18 through the terminal P9, the electronic compass module 19 is connected with the mainboard 18 through the terminal P8, and the pitch angle module 20 is connected with the mainboard 18 through the terminal P7, and each module is an independent structure of “sensor + single-chip microcomputer”. The design makes it possible to replace a higher-precision module later without modifying the core circuit of the mainboard 18. For example, when used in the field, if the laser receiving lens 10 is damaged, only the laser ranging module 16 needs to be replaced, without the need to return to the factory for overall maintenance, thereby reducing the maintenance cost and downtime.
[0039] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and it should be noted that, for ordinary skilled persons in the technical field, several improvements and modifications can be made without departing from the technical principles of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.
Claims
1. A long range laser ranging position finder characterized by The application relates to a laser ranging and sighting device, which comprises an instrument shell (21), a button (2), a display screen (6), a TYPE-C interface (12), a battery (15), a laser ranging module (16), a gun sighting telescope (17), a mainboard (18), an electronic compass module (19) and a pitch angle module (20). The laser ranging module (16) and the gun sighting telescope (17) are installed in parallel on a bottom plate (14) of the instrument shell (21), the laser emitting lens (9) and the laser receiving lens (10) of the laser ranging module (16) and the objective lens (8) of the gun sighting telescope (17) are arranged on the same side of the instrument shell (21), the laser emitting lens (9) is exposed through a rear panel (11) of the instrument shell (21), the electronic compass module (19) and the pitch angle module (20) are respectively installed on the bottom plate (14) on the left side of the gun sighting telescope (17), the battery (15) is installed on the bottom plate (14) on the left side of the laser ranging module (16), the mainboard (18) and the display screen (6) are installed on a front panel (4) of the instrument shell and are located on the same side of the ocular lens (7) of the gun sighting telescope (17), the bottom plate (14), the front panel (4), the rear panel (11) and a U-shaped plate (3) are fastened together to form the instrument shell (21), the U-shaped plate (3) is provided with the button (2) and a Beidou antenna (5) on the top.
2. A long range laser range finder and positioner according to claim 1 wherein The rear panel (11) is further provided with the TYPE-C interface (12), the U-shaped plate (3) is provided with a handle (1) on the left and the right, and the bottom plate (14) of the instrument shell is provided with a dovetail groove (13) structure.
3. A long range laser range finder and positioner according to claim 1 wherein The laser ranging module (16) is connected with the mainboard (18) through control lines, the electronic compass module (19) and the pitch angle module (20) are respectively connected with the mainboard (18) through control lines.
4. The long range laser range finder and positioner of claim 1 wherein The gun sighting telescope (17) is provided with a built-in crosshair aiming target.
5. The long range laser range finder and positioner of claim 1 wherein The laser ranging module (16) is composed of the laser emitting lens (9), the laser receiving lens (10) and a ranging control board (22), the laser emitting lens (9) and the laser receiving lens (10) are respectively connected with the ranging control board (22), and the ranging control board (22) is connected with the mainboard (18) through control lines.
6. The long range laser range finder and positioner of claim 1 wherein The electronic compass module (19) is composed of a geomagnetic sensor U9 and a single-chip microcomputer U8, the geomagnetic sensor U9 is connected with the single-chip microcomputer U8, the single-chip microcomputer U8 on the electronic compass module (19) obtains 0-360 degree azimuth data, the azimuth data represents the current horizontal angle of the instrument relative to the target, and the electronic compass module (19) transmits the azimuth data to the mainboard (18) in real time through a data line.
7. The long range laser range finder and positioner of claim 1 wherein The pitch angle module (20) is composed of an acceleration sensor U11 and a single-chip microcomputer U10, the acceleration sensor U11 is connected with the single-chip microcomputer U10, the acceleration sensor U11 senses the change of the gravitational acceleration of the instrument in the pitch direction, the acceleration data is converted into the angle data of the instrument in the pitch direction in the single-chip microcomputer U10, and the pitch angle data is transmitted to the mainboard (18) in real time through a data line.
8. The long range laser range finder and positioner of claim 1 wherein The mainboard (18) is provided with an ARM main processor U1, a real-time clock U2, a storage chip U3, a power management chip U4, a display screen U5, a Beidou module U6 and a Bluetooth module U7, the ARM main processor U1 is connected with the real-time clock U2, the storage chip U3, the power management chip U4, the display screen U5, the Beidou module U6 and the Bluetooth module U7, the ARM processor U1 of the mainboard (18) is in real-time communication with a laser ranging module, an electronic compass module, a pitch angle module and a Beidou module, distance data, azimuth angle data, pitch angle data and local positioning data are obtained, the position data of a remote target is calculated by the ARM processor through the data and is displayed on a screen, and the data is shared to other devices through Bluetooth.
9. A long range laser range finder and positioner according to claim 8 wherein The Beidou module U6 and the Bluetooth module U7 are installed on the mainboard (18), the Beidou module U6 measures the positioning information of the instrument itself in real time, the Bluetooth module U7 transmits the measurement data to the instrument mobile terminal, and the Beidou module U6 and the Bluetooth module U7 are connected with the ARM main processor U1 on the mainboard (18).
10. The long range laser range finder and positioner of claim 1 wherein The keys (2) are connected with the mainboard (18) through wires, the keys (2) realize the switching on and off of the instrument and the triggering of distance measurement, the battery (15) and the TYPE-C interface (12) are connected to the mainboard (18) through wires, the battery supplies power to each component of the instrument, and the TYPE-C interface (12) is used for charging the battery.