An interactive laser pointer sand table system

Abstract

The application provides an interactive laser indication sand table system, which comprises a sand table model, a laser indication holder fixedly connected with external objects above the sand table model, the laser indication holder being capable of adjusting horizontal and pitching angles of a laser beam, a control computer and a ground end wireless data transceiving device electrically connected with the control computer, the laser indication holder being electrically connected with the control computer, a flight carrier and photoelectric observation equipment and a sky end wireless data transceiving device arranged on the flight carrier, the photoelectric observation equipment being electrically connected with the control computer through the sky and the ground end wireless data transceiving device, the photoelectric observation equipment being capable of transmitting spatial position information of an observation target to the control computer in real time, the control computer calculating angle instructions required by the laser indication holder to rotate and sending the instructions to the laser indication holder, and the laser indication holder adjusting the angle of the laser beam so that an indication point of the laser beam on the sand table model is the same as a position of a target on an observed actual geographical area.

Description

Technical Field

[0001] This invention relates to the field of sand table technology, and in particular to an interactive laser-guided sand table system. Background Technology

[0002] Geological disasters and forest fires are characterized by their suddenness, randomness of occurrence, and ability to cause enormous losses in a short period. Therefore, once a disaster occurs, rescue measures must be implemented extremely quickly. The timeliness of rescue and the appropriateness of decision-making largely depend on the timeliness of the discovery of the sudden disaster, the accuracy and rationality of the analysis, and the appropriateness of the decision-making measures. To address this, this invention proposes an interactive laser-guided sand table system to achieve efficient and rapid deployment of rescue resources for the observation of geological disasters and forest fires in key areas, thereby improving the timeliness and accuracy of the command system. Summary of the Invention

[0003] The purpose of this invention is to solve the technical problems in the prior art where the display of sand table models is not intuitive enough and the remote observation area cannot be mapped onto the sand table model in real time.

[0004] To address the aforementioned technical problems, this invention provides an interactive laser pointing sand table system, comprising: a sand table model; a laser pointing gimbal fixedly connected to an external object above the sand table model; the laser pointing gimbal can adjust the horizontal and vertical angles of its laser beam; a ground-based wireless data transceiver and a control computer; both the laser pointing gimbal and the ground-based wireless data transceiver are electrically connected to the control computer; a flight platform and an optoelectronic observation device and a sky-based wireless data transceiver mounted on it; the optoelectronic observation device is electrically connected to the control computer via the sky-based and ground-based wireless data transceivers; the optoelectronic observation device can transmit the spatial position information of the observed target to the control computer in real time; after receiving this data, the control computer analyzes and calculates the angle command that the laser pointing gimbal needs to rotate and sends the command to the laser pointing gimbal; the laser pointing gimbal adjusts the angle of the laser beam according to the angle command, so that the pointing point of the laser beam on the sand table model is the same as the location of the target in the actual geographical area being observed.

[0005] Furthermore, the laser pointing gimbal includes a horizontal drive assembly, a pitch drive assembly, a mounting flange, an electrical interface, and a laser emitter. The horizontal drive assembly is used to adjust the horizontal angle of the laser beam, and the pitch drive assembly is used to adjust the pitch angle of the laser beam.

[0006] Furthermore, the horizontal actuation component is fixedly connected to the mounting flange, the pitch drive component is installed at the output end of the horizontal drive component, the horizontal drive component can adjust the horizontal angle of the pitch drive component, and the laser emitter is installed at the output end of the pitch drive component, the pitch drive component can adjust the pitch angle of the laser emitter.

[0007] Furthermore, both the pitch drive assembly and the azimuth drive assembly include a torque motor and an axis angle measurement sensor, both of which are electrically connected to the control computer.

[0008] Furthermore, the laser pointer gimbal is positioned relatively fixed relative to the sand table model, and the rotation angles of the laser pointer gimbal's pitch drive component and azimuth drive component correspond one-to-one with the latitude and longitude on the sand table model.

[0009] Furthermore, the control computer and the laser pointer gimbal communicate using an RS422 interface.

[0010] Furthermore, the control computer can convert the target latitude and longitude information into the angle information of the laser pointing gimbal.

[0011] Furthermore, the rotation range of the horizontal drive component is -180° to +180°.

[0012] Furthermore, the pitch drive assembly has a rotation range of -150° to +30°.

[0013] Furthermore, the optoelectronic observation equipment is equipped with a GPS / BeiDou positioning system, an inertial navigation system, and a laser ranging device, which calculate and analyze the spatial position of the target through these systems.

[0014] As can be seen from the above technical solution, the beneficial effects of the present invention are as follows: the photoelectric observation equipment can transmit the target image and coordinate information back to the control computer in real time through the sky-end wireless data transceiver device, and transmit the target coordinate position onto the sand table model through the laser pointing gimbal, which can intuitively display the geographical location of the target, realize the efficient deployment of resources, and improve the timeliness and accuracy of the command system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the interactive laser-guided sand table system of the present invention;

[0016] Figure 2 This is a schematic diagram of the interactive laser-guided sand table of the present invention;

[0017] Figure 3 This is a schematic diagram of the remote observation equipment components of the interactive laser-guided sand table system of the present invention;

[0018] Figure 4 This is a schematic diagram of the laser pointing gimbal of the present invention;

[0019] Figure 5 This is a schematic diagram of the working range of the laser pointing gimbal of the present invention.

[0020] The reference numerals in the attached diagrams are explained as follows: 3. Sand table mounting base; 4. Sand table model; 5. Laser pointing gimbal; 501. Electrical interface; 502. Mounting flange; 503. Azimuth drive assembly; 504. Pitch drive assembly; 505. Laser transmitter; 6. Laser pointing gimbal mounting base; 7. Control computer; 8. Ground-based wireless data transceiver; 9. Actual geographical area being observed; 10. Optoelectronic observation equipment; 11. Flight vehicle; 12. Sky-based wireless data transceiver. Detailed Implementation

[0021] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0022] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] To further illustrate the principles and structure of the present invention, preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] Please see Figure 1-5This embodiment provides an interactive laser pointing sand table system, including a sand table model 4 and a control computer 7, a laser pointing gimbal 5 located above the sand table model 4 and fixed in position relative to the sand table model 4, a flight carrier 11, and an optoelectronic observation device 10 mounted on it. Both the laser pointing gimbal 5 and the optoelectronic observation device 10 are electrically connected to the control computer 7. The laser pointing gimbal 5 can adjust the horizontal and vertical angles of its laser beam according to the instructions of the control computer 7. During observation, the optoelectronic observation device 10 transmits the spatial position information of the observed target to the control computer 7 in real time. After receiving these data, the control computer 7 analyzes and calculates the angle command that the laser pointing gimbal 5 needs to rotate and sends the command to the laser pointing gimbal 5. The laser pointing gimbal 5 adjusts the angle of the laser beam according to the angle command so that the pointing point of the laser beam on the sand table model 4 is the same as the position of the target in the actual geographical area being observed.

[0025] In order to transmit the target information observed by the photoelectric observation device 10 to the control computer 7, a ground-based wireless data transceiver device 8 and a sky-based wireless data transceiver device 12 are also included. The ground-based wireless data transceiver device 8 is electrically connected to the control computer 7, and the photoelectric observation device 10 is electrically connected to the sky-based wireless data transceiver device 12. The photoelectric observation device 10 communicates with the control computer 7 through the sky-based wireless data transceiver device 12 and the ground-based wireless data transceiver device 8.

[0026] The photoelectric observation equipment 10 can transmit the target's image and coordinate information back to the control computer 7 in real time through the sky-end wireless data transceiver 12, and project the target's coordinate position onto the sand table model 4 through the laser pointing gimbal 5, which can intuitively display the target's geographical location, realize the efficient deployment of resources, and improve the timeliness and accuracy of the command system.

[0027] The following will provide a detailed explanation of this plan.

[0028] like Figure 1 As shown, the interactive laser pointing sand table system is divided into a sand table pointing system 1 set up in the command center and a remote observation system 2 that performs observation tasks. The interactive laser pointing sand table system includes a sand table mounting base 3, a sand table model 4, a laser pointing gimbal 5, a laser pointing gimbal mounting base 6, a control computer 7, a ground-based wireless data transceiver 8, an optoelectronic observation device 10, a flight carrier 11, and a sky-based wireless data transceiver 12.

[0029] like Figure 2As shown, in this embodiment, the sand table model 4 is fixed on the sand table mounting base 3, and the sand table mounting base 3 is fixed to the ground. The laser pointing gimbal 5 is fixed to the wall or a fixed bracket through the laser pointing gimbal mounting base 6. The laser pointing gimbal 5 is connected to the control computer 7 through a cable, and the control computer 7 is connected to the ground-based wireless data transceiver 8 through a cable.

[0030] like Figure 3 As shown, the sky-based wireless data transceiver 12 is fixed on the flight carrier 11, and the photoelectric observation device 10 is fixed on the lower part of the flight carrier 11.

[0031] like Figure 4 As shown, the laser pointing gimbal 5 in this embodiment includes an electrical interface 501, a mounting flange 502, an azimuth drive assembly 503, a pitch drive assembly 504, and a laser emitter 505. The electrical interface 501 is connected to the control computer 7 and an external power supply, with a power supply voltage range of 12V to 24VDC. The laser pointing gimbal 5 is connected to the laser pointing gimbal mounting base 6 via the mounting flange 502. The azimuth drive assembly 503 is mounted on the base where the flange 502 is located, and the azimuth drive assembly 503 has a rotational degree of freedom relative to the base, with a rotation range of -180° to +180°. The pitch drive assembly is mounted on the azimuth drive assembly 503, and the pitch drive assembly 504 has a rotational degree of freedom relative to the azimuth drive assembly, with a rotation range of -150° to +30°. The azimuth motor drive assembly 503 and the pitch motor drive assembly 504 are composed of a torque motor and an angle encoder. The laser transmitter 505 is mounted on the pitch drive assembly 504.

[0032] like Figure 5 As shown, after installing the sand table model 4 and the laser pointer gimbal 5, both need to be calibrated so that the pitch and azimuth angles of the laser pointer gimbal 5 correspond to the latitude and longitude on the sand table model 4, and the pointing range of the laser pointer gimbal should cover the entire sand table model.

[0033] Specifically, using this invention patent includes the following steps:

[0034] Step 1: The photoelectric observation device 10 communicates with the control computer 7 through the sky-end wireless data transceiver 12 and the ground-end wireless data transceiver 8. The control computer 7 can receive the data transmitted back by the photoelectric observation device 10.

[0035] Step 2: The flight vehicle arrives at the observation area 9 to perform the mission. After discovering the key target, the optoelectronic observation equipment 10 tracks the key target and calculates and analyzes the position of the key target based on the GPS / BeiDou positioning system, inertial navigation system and laser ranging equipment carried by the optoelectronic observation equipment 10. The optoelectronic observation equipment 10 transmits the calculated and analyzed position of the key target to the control computer 7 through the sky-end wireless data transceiver 12 and the ground-end wireless data transceiver 8.

[0036] Step 3: After receiving the target position data sent by the photoelectric observation device 10, the control computer 8 parses the target position data and obtains the angle command that the laser pointing gimbal 5 needs to rotate. The angle command is then sent to the laser pointing gimbal 5 through the RS422 communication interface.

[0037] Step 4: After receiving the angle command, the laser pointing gimbal 5 uses its internal control circuit to collect the angular position sensor information on the pitch drive component 504 and the azimuth drive component 503 in real time, and drives the torque motor to rotate to the same position as the received angular position through a closed-loop control algorithm.

[0038] Step 5: Turn on the laser emitter 505 switch to emit a laser beam. At this time, the indicator point of the laser beam on the sand table model 4 is the same as the location of the target on the actual geographical area 9 being observed, and the target location information can be observed intuitively.

[0039] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An interactive laser-guided sand table system, comprising a sand table model, a laser-guided gimbal fixedly connected to an external object above the sand table model, the laser-guided gimbal being adjustable in terms of the horizontal and vertical angles of its laser beam; a ground-based wireless data transceiver and a control computer, both the laser-guided gimbal and the ground-based wireless data transceiver being electrically connected to the control computer; a flight platform and photoelectric observation equipment and a sky-based wireless data transceiver mounted thereon, the photoelectric observation equipment being electrically connected to the control computer via the sky-based and ground-based wireless data transceivers; the photoelectric observation equipment transmitting the spatial position information of the observed target to the control computer in real time; the control computer receiving this data, parsing and calculating the angle command required for the laser-guided gimbal to rotate, and sending the command to the laser-guided gimbal; the laser-guided gimbal adjusting the angle of the laser beam according to the angle command, so that the laser beam's pointing point on the sand table model is the same as the location of the target in the actual geographical area being observed.

2. The interactive laser-guided sand table system according to claim 1, characterized in that, The laser pointing gimbal includes a horizontal drive assembly, a pitch drive assembly, a mounting flange, an electrical interface, and a laser emitter. The horizontal drive assembly is used to adjust the horizontal angle of the laser beam, and the pitch drive assembly is used to adjust the pitch angle of the laser beam.

3. The interactive laser-guided sand table system according to claim 2, characterized in that, The horizontal drive assembly is fixedly connected to the mounting flange. The pitch drive assembly is installed at the output end of the horizontal drive assembly. The horizontal drive assembly can adjust the horizontal angle of the pitch drive assembly. The laser emitter is installed at the output end of the pitch drive assembly. The pitch drive assembly can adjust the pitch angle of the laser emitter.

4. The interactive laser-guided sand table system according to claim 3, characterized in that, Both the pitch drive assembly and the azimuth drive assembly include a torque motor and an axis angle measurement sensor, and both the torque motor and the axis angle measurement sensor are electrically connected to the control computer.

5. The interactive laser-guided sand table system according to claim 1, characterized in that, The laser pointer gimbal is positioned relatively fixed relative to the sand table model, and the angles of rotation of the laser pointer gimbal's pitch drive component and azimuth drive component correspond one-to-one with the latitude and longitude on the sand table model.

6. The interactive laser-guided sand table system according to claim 2, characterized in that, The control computer communicates with the laser pointer pan-tilt unit via an RS422 interface.

7. The interactive laser-guided sand table system according to claim 5, characterized in that, The control computer can convert the target's latitude and longitude information into the angle information of the laser pointing gimbal.

8. The interactive laser-guided sand table system according to claim 2, characterized in that, The rotation range of the horizontal drive component is -180° to +180°.

9. The interactive laser-guided sand table system according to claim 8, characterized in that, The pitch drive assembly has a rotation range of -150° to +30°.

10. The interactive laser-guided sand table system according to claim 1, characterized in that, The optoelectronic observation equipment is equipped with a GPS / BeiDou positioning system, an inertial navigation system, and a laser ranging device. It calculates and analyzes the spatial position of the target through the GPS / BeiDou positioning system, the inertial navigation system, and the laser ranging device.

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