A calibration vehicle for onboard photoelectric payload internal inertial navigation calibration
Patent Information
- Application Number
- CN202522522271.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-11-27
AI Technical Summary
[0004]本实用新型的目的在于提供一种用于机载光电载荷内部惯导校准的校准车，以解决现有检校方法中，使用飞机成本高、安全性存在隐患的问题
本实用新型所提供的用于机载光电载荷内部惯导校准的校准车在车顶通过定位槽、压板和导槽螺母的连接方式，一方面可以实现光电载荷的快速定位、另一方面还能有效的锁紧光电载荷。该校准车结构简单、方便安装、维护和更换，有效降低了惯导校准的成本，同时避免了因飞行安全引气的光电载荷安全隐患问题。
Smart Images
Figure CN224850981U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of inertial navigation calibration technology, specifically relating to a calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads. Background Technology
[0002] As a mission device carried by aircraft, optoelectronic payloads have been widely used in various fields such as power line inspection, oil pipeline inspection, forest patrol and environmental disaster monitoring. In actual use, in order to quickly obtain the actual coordinates of power line fault points, oil pipeline leaks or forest fires, optoelectronic payloads are equipped with inertial navigation systems.
[0003] Because the optoelectronic payload needs to continuously move in azimuth and pitch, deviations occur between the internal inertial navigation system (INS) and the aircraft's heading angle and attitude information. Optoelectronic payloads equipped with INS require periodic calibration of these information. The current common practice is to install the optoelectronic payload on an aircraft and use a ground calibration range to calibrate the INS within the payload to eliminate heading angle deviations. However, aircraft flight requires access to flight sites, airspace applications, and pilots, presenting limitations such as high costs and potential safety hazards. Therefore, there is an urgent need to develop a low-cost modification method that eliminates airspace application requirements and allows for dynamic calibration of the internal INS of airborne optoelectronic payloads using vehicles. Summary of the Invention
[0004] The purpose of this invention is to provide a calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads, in order to solve the problems of high cost and safety risks associated with using aircraft in existing calibration methods.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a calibration vehicle for internal inertial navigation calibration of an airborne optoelectronic payload, comprising an optoelectronic payload, an optoelectronic payload debugging bracket for fixing the optoelectronic payload, a fixing component mounted on the roof for fixing the optoelectronic payload debugging bracket, a power module placed inside the vehicle, a calibration inertial navigation device, and an optoelectronic payload display and control console. The fixing assembly includes a fixing bracket fixed on the roof of the vehicle, multiple positioning slots provided on the fixing bracket, a fixing pressure plate for fixing the photoelectric load debugging bracket on the fixing bracket, and a guide groove nut that can slide in the positioning slot for positioning the installation position.
[0006] The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads provided by this utility model also has the following technical feature: the fixed pressure plate is provided with multiple screw holes.
[0007] The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads provided by this utility model also has the following technical feature: there are multiple fixed pressure plates.
[0008] The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads provided by this utility model also has the following technical feature: there are four fixed pressure plates, which are respectively set on the four sides of the fixed bracket.
[0009] The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads provided by this utility model also has the following technical feature: the optoelectronic payload debugging bracket is fixed on the fixed bracket by the cooperation of guide groove nuts, fixed pressure plates and fixed screws.
[0010] The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads provided by this utility model also has the following technical feature: the rear of the calibration vehicle is equipped with an upper staircase for installation personnel to climb onto the top of the vehicle.
[0011] The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads provided by this utility model also has the following technical features: the calibration vehicle is equipped with an external waterproof socket and a winding reel installed inside the vehicle.
[0012] The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads provided by this utility model also has the following technical feature: the interior of the calibration vehicle is covered with PVC flooring.
[0013] Beneficial effects: The calibration vehicle provided by this invention for internal inertial navigation calibration of airborne optoelectronic payloads utilizes a connection method on the vehicle roof via positioning slots, pressure plates, and guide nuts. This method enables rapid positioning of the optoelectronic payload and effectively locks it in place. The calibration vehicle has a simple structure, is easy to install, maintain, and replace, effectively reducing the cost of inertial navigation calibration while avoiding the safety hazards associated with bleed air from the optoelectronic payload during flight safety operations. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a top view of the calibration vehicle provided in the embodiment of this utility model. Figure 2 This is a schematic diagram of the structure of the fixing bracket provided in the embodiment of this utility model; Figure 3 This is a schematic diagram of the installation of the photoelectric load debugging bracket and the fixed bracket provided in the embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the rear of the vehicle provided in an embodiment of the present invention; Figure 5 A schematic diagram of the interior of the calibration vehicle provided in this embodiment of the utility model; Figure 6 This is a schematic diagram of the calibration vehicle installation provided in the embodiment of this utility model. Among them, 1: positioning groove; 2: guide groove nut; 3: fixing pressure plate; 4: fixing bracket; 5: fixing screw; 6: top staircase; 7: external waterproof socket; 8: anti-static strip; 9: power module; 10: calibration inertial navigation device; 11: photoelectric load display and control console; 12: operating chair; 13: vehicle interior lighting; 14: PVC floor; 15: fire extinguisher; 16: winding reel. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.
[0017] In the description of the embodiments of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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 limiting this utility model.
[0018] Furthermore, the terms "first," "second," "third," etc., 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," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0019] The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.
[0020] like Figure 1-6As shown, this utility model embodiment provides a calibration vehicle for internal inertial navigation calibration of an airborne optoelectronic payload, including an optoelectronic payload, an optoelectronic payload debugging bracket for fixing the optoelectronic payload, a fixing component set on the roof of the vehicle for fixing the optoelectronic payload debugging bracket, a power module placed inside the vehicle, a calibration inertial navigation device, and an optoelectronic payload display and control console. The fixing component includes a fixing bracket fixed on the roof of the vehicle, multiple positioning slots set on the fixing bracket, a fixing pressure plate for fixing the optoelectronic payload debugging bracket on the fixing bracket, and a guide groove nut that can slide in the positioning slot for positioning the installation position.
[0021] The power module is an AC 220V to DC 28V power module, and the positioning slot is used to securely fix the photoelectric load. The guide nut slides through the positioning slot to position the installation. The power module supplies power to the photoelectric load. The calibration inertial navigation system is used to calibrate the internal inertial navigation of the photoelectric load, and the photoelectric load display and control console is used to control the photoelectric load. The calibration vehicle also includes an operating chair for the test personnel, interior lighting, and a fire extinguisher for safety.
[0022] In some embodiments, the fixing plate is provided with multiple screw holes.
[0023] In some embodiments, there are multiple fixed pressure plates.
[0024] In some embodiments, four fixing plates are respectively arranged on the four sides of the fixing bracket. The four fixing plates are used simultaneously to lock the photoelectric load debugging bracket, achieving a stable fixation.
[0025] In some embodiments, the photoelectric load debugging bracket is fixed to the fixed bracket by the cooperation of a guide groove nut, a fixing plate, and fixing screws. The fixing screws securely lock the fixing plate to the fixed bracket.
[0026] In some embodiments, the calibration vehicle is also equipped with a top staircase at the rear for installation personnel to access the top of the vehicle. The top staircase allows maintenance personnel to safely and quickly reach the top of the vehicle. The rear of the vehicle is also equipped with an anti-static strap to eliminate the effects of static electricity.
[0027] In some embodiments, the calibration vehicle is also equipped with an external waterproof socket and a winding reel located inside the vehicle.
[0028] In some embodiments, the calibration vehicle is equipped with PVC flooring.
[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads, characterized in that, It includes an optoelectronic payload, an optoelectronic payload debugging bracket for fixing the optoelectronic payload, a fixing component mounted on the roof for fixing the optoelectronic payload debugging bracket, a power module placed inside the vehicle, a calibration inertial navigation device, and an optoelectronic payload display and control console. The fixing assembly includes a fixing bracket fixed on the roof of the vehicle, multiple positioning slots provided on the fixing bracket, a fixing pressure plate for fixing the photoelectric load debugging bracket on the fixing bracket, and a guide groove nut that can slide in the positioning slot for positioning the installation position.
2. The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads according to claim 1, characterized in that, The fixed pressure plate has multiple screw holes.
3. The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads according to claim 1, characterized in that, There are multiple fixed pressure plates.
4. The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads according to claim 3, characterized in that, There are four fixed pressure plates, which are respectively set on the four sides of the fixed bracket.
5. The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads according to claim 1, characterized in that, The photoelectric load debugging bracket is fixed to the fixed bracket by the cooperation of guide groove nuts, fixed pressure plates and fixed screws.
6. The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads according to claim 1, characterized in that, The calibration vehicle is also equipped with a top staircase at the rear for installation personnel to climb onto the vehicle's roof.
7. The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads according to claim 1, characterized in that, The calibration vehicle is also equipped with an external waterproof socket and a winding reel located inside the vehicle.
8. The calibration vehicle for internal inertial navigation calibration of airborne optoelectronic payloads according to claim 1, characterized in that, The calibration vehicle has a PVC floor inside.