A kind of integrated information processing board applied to photoelectric tracking and collimating instrument angle calibration

Abstract

This invention discloses a comprehensive information processing board for angle calibration of an optoelectronic tracking device, comprising: an information acquisition module that acquires two-dimensional coordinate data of the laser spot on the target surface through a laser information acquisition camera; a data communication module with a multi-interface design, connecting to the camera, inertial measurement unit, autocollimator, optoelectronic tracking device, and power supply unit respectively, to realize real-time acquisition and transmission of multi-source data; a synchronization module that ensures system time synchronization based on a high-precision clock source; a data calculation module that constructs a three-dimensional spatial pointing model by fusing laser coordinates, inertial navigation attitude, autocollimation optical axis data, and optoelectronic tracking device miss distance information, and accurately calculates the azimuth / pitch angle deviation between the multispectral optical axis of the optoelectronic tracking device and the reference axis; and a power monitoring module equipped with dual-redundant detection circuits to monitor the power supply status in real time. This invention effectively improves the optical axis calibration accuracy and system reliability of the optoelectronic tracking device through multi-source data fusion and high-precision calculation.

Description

Technical Field

[0001] This invention relates to the field of photoelectric measurement and calibration technology, and in particular to a comprehensive information processing board for angle calibration of photoelectric tracking instruments, which can solve the problems of insufficient accuracy of multi-source data fusion and low efficiency of optical axis pointing deviation calibration. Background Technology

[0002] As a core component of modern detection and tracking systems, the angle calibration accuracy of the electro-optical tracking device directly determines the system's ability to detect, identify, and track targets. The integrated information processing board is a key component for angle calibration of the electro-optical tracking device. It is responsible for collecting multi-source data (such as laser coordinates, inertial navigation attitude, autocollimation optical axis data, and infrared / visible light miss distance information), and constructing a high-precision three-dimensional spatial pointing model through data fusion and processing, ultimately achieving accurate calculation and real-time correction of optical axis deviation.

[0003] Currently, traditional integrated information processing boards have several problems in practical applications. First, traditional methods handle relatively simple problems and cannot achieve multiple functions such as data acquisition, communication, synchronization, computation, and power monitoring. Second, traditional processing boards have limited computing power and real-time performance, making it difficult to meet the requirements of optomechanical axis calibration and tracking angle measurement in photoelectric tracking instruments. Furthermore, the high algorithm complexity of traditional methods leads to high system power consumption and slow response speed, making it difficult to meet the high efficiency and low power consumption requirements of modern photoelectric tracking instruments.

[0004] In summary, this invention provides a comprehensive information processing board for angle calibration of photoelectric tracking and aiming instruments, aiming to overcome the shortcomings of traditional calibration techniques. This method improves the stability and reliability of the system through high-precision data acquisition, multi-source information fusion, and real-time deviation calculation and feedback, meeting the growing demand for high-precision tracking and aiming in aerospace, industrial inspection, and other fields. Summary of the Invention

[0005] This invention provides a comprehensive information processing board for angle calibration of photoelectric tracking instruments, in order to solve the technical problem of integrating data acquisition and processing functions in existing systems.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A comprehensive information processing board for angle calibration of an optoelectronic tracking sight includes: Information acquisition module: Acquires two-dimensional coordinate data of the laser spot on the target surface through a laser information acquisition camera.

[0007] Data communication module: It adopts a multi-interface design and connects to the camera, inertial measurement unit, autocollimator, photoelectric tracking device and power supply unit respectively. It realizes remote configuration of camera exposure parameters, real-time acquisition of spatial pose, capture of autocollimator optical axis coordinates and remote measurement of target miss distance of photoelectric tracking device, ensuring efficient transmission and stable operation of system data, and providing comprehensive support for optical axis calibration.

[0008] Synchronization module: Employs a high-precision clock source to ensure time synchronization between the calibration system and the tracking device.

[0009] Data processing module: By fusing and processing laser coordinates, inertial navigation attitude, autocollimation optical axis data and photoelectric tracking miss distance information, a three-dimensional spatial pointing model is constructed to accurately calculate the azimuth / pitch angle deviation between the multispectral optical axis of the photoelectric tracking device and the reference axis.

[0010] Power monitoring module: Equipped with dual-redundant detection circuits, it can monitor the power status of key input and output nodes of the power supply and distribution unit in real time.

[0011] Furthermore, the acquisition of two-dimensional coordinate data of the laser spot on the target surface via a laser information acquisition camera includes: Laser spot detection involves capturing the laser spot on the target surface in real time using a laser information acquisition camera, processing the image to extract the center position information of the spot, and then calculating its two-dimensional coordinate data on the target surface based on the center position of the spot. :

[0012]

[0013] in, The acquired image location information is ; and It is the proportionality coefficient; and It's the offset.

[0014] This It is output to the data communication module to support subsequent data fusion and processing.

[0015] Furthermore, the use of a high-precision clock source to ensure time synchronization between the calibration system and the tracking sight includes: A high-precision clock source provides the system with a stable, low-drift time reference. A synchronization signal is generated based on this clock source to ensure that the calibration system and the photoelectric tracking device have the same time reference. Precise timestamps are applied to multi-source data (such as laser spot coordinates and inertial navigation attitude) to ensure data time consistency. Real-time monitoring and algorithmic compensation for clock deviations ensure synchronization accuracy over long periods of operation. The synchronization module communicates with the photoelectric tracking device and other devices to enable collaborative operation of all system modules.

[0016] Furthermore, the process of fusing laser coordinates, inertial navigation attitude, autocollimation optical axis data, and optoelectronic tracking miss distance information to construct a three-dimensional spatial pointing model, and accurately calculating the azimuth / pitch angle deviation between the multispectral optical axis of the optoelectronic tracking device and the reference axis, includes: The angle calibration component acquires laser coordinates. Inertial navigation attitude Self-collimating optical axis data Off-target information By combining fusion algorithms, a high-precision three-dimensional spatial pointing model is constructed. This model accurately describes the spatial relationship between the optical axis and the reference axis. Based on this model, the system calculates the azimuth deviation. and pitch angle deviation :

[0017]

[0018] in, The multispectral optical axis of the photoelectric tracking sight is ; The reference axis is .

[0019] Through error correction, the final output deviation value is used for real-time calibration and pointing adjustment to ensure the high-precision tracking performance of the system in complex environments.

[0020] Furthermore, the dual-redundant detection circuit can monitor the power status of key input and output nodes of the power supply and distribution unit in real time, including: Parameters such as voltage, current, power, and operating temperature are monitored to ensure the stability and reliability of the power supply system and to trigger protection mechanisms in a timely manner under abnormal conditions, thus ensuring the normal operation of the system.

[0021] Beneficial effects: 1. This invention constructs a three-dimensional spatial pointing model by fusing laser coordinates, inertial navigation attitude, autocollimation optical axis data, and miss distance information of the photoelectric tracking aiming device. This significantly improves the calculation accuracy of the azimuth / pitch angle deviation between the multispectral optical axis and the reference axis of the photoelectric tracking aiming device, and solves the problem of insufficient calibration accuracy of traditional methods.

[0022] 2. This invention uses a high-precision clock source to achieve time synchronization between the system and the photoelectric tracking device, and combines timestamp marking and deviation compensation mechanisms to ensure the consistency of multi-source data in time, thereby enhancing the system's real-time tracking and calibration capabilities in complex environments.

[0023] 3. This invention is equipped with a dual-redundant power supply monitoring circuit, which monitors the key parameters of the power supply unit (voltage, current, power, temperature, etc.) in real time and triggers the protection mechanism when abnormalities occur, effectively ensuring the long-term stable operation of the system. It is suitable for fields with extremely high reliability requirements, such as aerospace. Attached Figure Description

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

[0025] Figure 1 This is a flowchart of a comprehensive information processing board for angle calibration of an optoelectronic tracking device, provided as an embodiment of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0027] First Embodiment This embodiment provides a comprehensive information processing board for angle calibration of an optoelectronic tracking device. This method can be implemented using an angle calibration component. The execution flow of this method is as follows: Figure 1 As shown, the specific steps of this method are as follows: S1, by leveraging the precise coordinate relationship between the inertial measurement unit and the target simulation and measurement unit in the angle calibration component, can accurately obtain the spatial pointing information of the broadband light source emitted by the target simulation and measurement unit.

[0028] S2, use the visible light camera in the photoelectric tracking device to capture the light source emitted by the target simulation and measurement unit. At this time, switch the photoelectric tracking device to tracking mode to ensure that the light source target is always within the imaging target surface.

[0029] S3, under the premise that the angle calibration component and the photoelectric tracking device have a line of sight, the angle calibration component is made to move randomly, while the photoelectric tracking device is in follow mode.

[0030] S4, through the integrated information processor in the angle calibration component, synchronously collects the attitude information of its own inertial measurement unit and the miss distance of the photoelectric tracking device. By comparing the two sets of data, it can accurately calculate the accuracy of the tracking output angle of the tracking device.

[0031] Specifically, in this embodiment, S1 is implemented as follows: S11 uses a laser information acquisition camera to detect and capture the laser spot on the target surface in real time.

[0032] S12 processes the acquired laser spot image and extracts the center position information of the spot.

[0033] S13. Calculate the two-dimensional coordinate data (usually X-axis and Y-axis coordinates) of the laser spot on the target surface based on the center position information of the laser spot.

[0034] S14 outputs the calculated two-dimensional coordinate data to the data communication module for subsequent data fusion and processing.

[0035] The above S2 is implemented as follows: S21 communicates with the camera via an interface to remotely configure and adjust the camera's exposure parameters, ensuring the clarity and accuracy of the laser spot image.

[0036] S22 connects to the inertial measurement unit (IMU) via an interface to acquire the spatial pose information (such as azimuth and pitch angles) of the photoelectric tracking device in real time, providing attitude data for optical axis calibration.

[0037] S23 connects to the autocollimator via an interface to capture the coordinate information of the autocollimated optical axis, which is used for the calculation and calibration of optical axis deviation.

[0038] S24 connects to the photoelectric tracking device via an interface to remotely measure its miss distance in real time, providing key data for optical axis deviation calculation.

[0039] The S25 connects to the power supply and distribution unit via an interface to monitor the power status in real time and ensure stable system operation.

[0040] The implementation of S3 above is as follows: The S31 uses a highly stable, low-drift clock source to provide a unified time reference for the system.

[0041] S32 generates a synchronization signal based on a high-precision clock source to ensure that the time reference of the calibration system is consistent with that of the photoelectric tracking device.

[0042] S33 accurately timestamps the collected multi-source data (such as laser spot coordinates, inertial navigation attitude, autocollimation optical axis data, and miss distance information) to ensure the time consistency of the data.

[0043] S34 monitors clock deviation in real time and uses algorithms to calibrate and compensate for it, ensuring time synchronization accuracy during long-term operation.

[0044] The S35 communicates with the photoelectric tracking device and other equipment through a synchronization module to achieve time synchronization and enable the coordinated operation of various modules in the system.

[0045] The above S4 is implemented as follows: S41 acquires laser coordinates, inertial navigation attitude, autocollimation optical axis data, and photoelectric tracking miss distance information, providing basic data support for target positioning and optical axis calibration.

[0046] S42 optimizes multi-source data through a fusion algorithm to construct a high-precision three-dimensional spatial pointing model, thereby improving the stability and reliability of the system.

[0047] S43, based on fused data, establishes a spatial relationship model between the multispectral optical axis and the reference axis of the photoelectric tracking sight, accurately describing the azimuth and elevation angles of the optical axis in three-dimensional space.

[0048] S44 utilizes a three-dimensional spatial pointing model to accurately calculate the azimuth / elevation angle deviation between the multispectral optical axis and the reference axis of the photoelectric tracking sight, and achieves precise correction through error analysis.

[0049] S45 outputs the calculated deviation value for real-time calibration and pointing adjustment of the photoelectric tracking device, ensuring high-precision tracking performance of the system in complex environments.

[0050] The implementation of S5 above is as follows: S51 monitors parameters such as voltage, current, power, and operating temperature to ensure the stability and reliability of the power supply system and promptly triggers protection mechanisms in abnormal situations to guarantee the normal operation of the system.

[0051] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A comprehensive information processing board for angle calibration of an optoelectronic tracking sight, characterized in that, include: Information acquisition module: Acquires two-dimensional coordinate data of the laser spot on the target surface through a laser information acquisition camera; Data communication module: It adopts a multi-interface design and connects to the camera, inertial measurement unit, autocollimator, photoelectric tracking device and power supply unit respectively, so as to realize remote configuration of camera exposure parameters, real-time acquisition of spatial pose, autocollimator optical axis coordinate capture and photoelectric tracking device miss distance telemetry function. Synchronization module: Employs a high-precision clock source to ensure time synchronization between the calibration system and the tracking device; Data processing module: By fusing and processing laser coordinates, inertial navigation attitude, autocollimation optical axis data and photoelectric tracking miss distance information, a three-dimensional spatial pointing model is constructed to accurately calculate the azimuth / pitch angle deviation between the multispectral optical axis of the photoelectric tracking device and the reference axis; Power monitoring module: Equipped with dual-redundant detection circuits, it can monitor the power status of key input and output nodes of the power supply and distribution unit in real time.

2. The integrated information processing board as described in claim 1, characterized in that, The step of acquiring two-dimensional coordinate data of the laser spot on the target surface through a laser information acquisition camera includes: Laser spot detection involves capturing the laser spot on the target surface in real time using a laser information acquisition camera, processing the image to extract the center position information of the spot, and then calculating its two-dimensional coordinate data on the target surface based on the center position of the spot. : in, The acquired image location information is ; and It is the proportionality coefficient; and It is the offset; This It is output to the data communication module to support subsequent data fusion and processing.

3. The integrated information processing board as described in claim 1, characterized in that, The use of a high-precision clock source to ensure time synchronization between the calibration system and the tracking device includes: A high-precision clock source provides a stable, low-drift time reference for the system; a synchronization signal is generated based on this clock source to ensure that the time reference of the calibration system and the photoelectric tracking device are consistent; precise timestamps are applied to multi-source data (such as laser spot coordinates, inertial navigation attitude, etc.) to ensure data time consistency; real-time monitoring and algorithm compensation for clock deviations ensure synchronization accuracy during long-term operation; the synchronization module communicates with the photoelectric tracking device and other devices to achieve time synchronization and enable collaborative work among the various modules of the system.

4. The integrated information processing board as described in claim 2, characterized in that, The process involves fusing laser coordinates, inertial navigation attitude, autocollimation optical axis data, and the miss distance information of the electro-optical tracking device to construct a three-dimensional spatial pointing model. This model accurately calculates the azimuth / pitch angle deviation between the multispectral optical axis of the electro-optical tracking device and the reference axis, including: The angle calibration component acquires laser coordinates. Inertial navigation attitude Self-collimating optical axis data Off-target information By combining fusion algorithms, a high-precision three-dimensional spatial pointing model is constructed. This model accurately describes the spatial relationship between the optical axis and the reference axis; based on this model, the system calculates the azimuth deviation. and pitch angle deviation : in, The multispectral optical axis of the photoelectric tracking sight is ; The reference axis is ; Through error correction, the final output deviation value is used for real-time calibration and pointing adjustment to ensure the high-precision tracking performance of the system in complex environments.

5. The integrated information processing board as described in any one of claims 1-4, characterized in that, The dual-redundant detection circuit can monitor the power status of key input and output nodes of the power supply and distribution unit in real time, including: Parameters such as voltage, current, power, and operating temperature are monitored to ensure the stability and reliability of the power supply system and to trigger protection mechanisms in a timely manner under abnormal conditions, thus ensuring the normal operation of the system.

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