CN202904025U

CN202904025U - Target positioning device used for airborne equipment

Info

Publication number: CN202904025U
Application number: CN 201220507346
Authority: CN
Inventors: 蒋晓阳; 王宗俐
Original assignee: Cama Luoyang Measurement and Control Equipments Co Ltd
Current assignee: Cama Luoyang Measurement and Control Equipments Co Ltd
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2013-04-24
Anticipated expiration: 2022-09-29

Abstract

The utility model relates a target positioning device used for airborne equipment. The target positioning device includes a signal processing unit, a laser range finder of which output signals are connected into the signal processing unit, an infrared thermal imager, a visible-light camera, a combination inertial navigation module and a goniometer, wherein the signal processing unit is used for calculating position information of a target according to uploaded various signals. According to the target positioning device used for the airborne equipment of the utility model, aerial carrier GPS information, aerial carrier attitude information, angle deviation of observation equipment relative to a carrier aircraft, and ranging information of the observation equipment for the target are integrated so as to realize accurate positioning of the longitude, latitude and height of the target; the advantages of multiple sensors are combined, and a multidimensional space transformation principle is utilized, such that rapid, effective, non-contact, high-adaptability and accurate positioning of the target can be realized; and the target positioning device can be used in fields such as forest fire prevention, and rapid search and rescue, and has broad technical and market prospect.

Description

The airborne equipment target locating set

Technical field

The utility model belongs to the accurate measurement and positioning technical field of target, relates to a kind of airborne equipment target locating set.

Background technology

The Technology for Target Location that Present Domestic is commonly used outward focuses mostly in the single-sensor application, for example laser ranging technique is launched modulated light signal by the laser instrument emission coefficient to measurement target, return through diffuse reflection after arriving measurement target, receive by receiving system, and receiving optical signals is converted to electric signal, then pass to signal processing circuit and carry out signal and process and can calculate air line distance between launching site and target; Obtain the pixel-shift of target distance center on image with image processing techniques, be combined into as plant bulk and lens focus and can calculate the pitching orientation angles that target departs from current observation center; Extract the object pixel size by image processing techniques, in conjunction with known target physical size and imaging system optical focal length, utilize triangular transformation can estimate out target apart from observation station air line distance; By obtaining its longitude and latitude elevation information to target bind GPS communication apparatus.

But all there is some problems in above technology, as obtains air line distance or depart from the field of view center angle and be only applicable to some special application field; Apart from there being larger error, also only can be applied to special dimension by image and target priori calculated line; And also be " impossible mission " to target bind GPS communication apparatus in fields such as personnel's search and rescue, forest fires monitoring, target strikes.So how to realize target localization rapid, effective, contactless, high-adaptability, become extremely urgent application demand in each field of army/people/police, the sky/sea/ground environment.

The utility model content

The purpose of this utility model provides a kind of airborne equipment target locating set, the target localization of rapid to realize, effective, contactless, high-adaptability.

For achieving the above object, airborne equipment of the present utility model is as follows with the target locating set technical scheme: this device comprises that signal processing unit and output signal all are connected into the laser range finder of signal processing unit, thermal infrared imager, visible light camera, combined inertial nevigation module and clinometer rule, and described signal processing unit is used for calculating according to each signal of uploading the positional information of target.

Described signal processing unit is comprised of A/D, FPGA and the DSP that communication connects, described A/D comprises A/D module and 422 communication modules, described FPGA comprises video acquisition module, view data scheduler module and communication control module, and described DSP comprises that target localization resolves module.

Airborne equipment target locating set of the present utility model, merge carrier aircraft GPS information, carrier aircraft attitude information, the relative carrier aircraft angular deviation of scope, scope the ranging information of target is realized accurate location to target longitude and latitude height, the utility model is in conjunction with the multisensor advantage, utilize hyperspace shift theory realization target rapid, effective, contactless, high-adaptability accurately to locate, can use in fields such as forest fire protection, the rapid search and rescue of personnel, possess wide technology and market outlook.

Description of drawings

Fig. 1 is the structural representation that airborne equipment is used target locating set;

Fig. 2 is the structural representation of signal processing unit.

Embodiment

As shown in Figure 1, airborne equipment comprises that with target locating set signal processing unit and output signal all are connected into the laser range finder of signal processing unit, thermal infrared imager, visible light camera, combined inertial nevigation module and clinometer rule, and signal processing unit is used for calculating according to each signal of uploading the positional information of target.Wherein front end sensors is responsible for providing calculating and is inputted, the laser ranging information that provides of laser range finder for example, the current device longitude and latitude elevation information that the scene Infrared Image Information that thermal infrared imager provides, the visible light image information that visible light camera provides, combined inertial nevigation module provide and equipment are with respect to the course/pitching of geographic coordinate system/roll information, and the current optical axis that clinometer rule provides is with respect to pitching, the offset information of equipment; Signal processing circuit as input, calculates the true longitude and latitude elevation information of target with above information via the target localization algorithm.

As shown in Figure 2, signal processing unit is comprised of A/D, FPGA and the DSP that communication connects, described A/D comprises A/D module and 422 communication modules, and described FPGA comprises video acquisition module, view data scheduler module and communication control module, and described DSP comprises that target localization resolves module.A/D is responsible for receiving the real time data that transmits from infrared, visible light, laser, combined inertial nevigation and clinometer rule, is dispatched to DSP after putting in order via FPGA, is merged by its data that a few class sensors are transmitted and resolves.

Claims

1. airborne equipment target locating set, it is characterized in that, this device comprises that signal processing unit and output signal all are connected into the laser range finder of signal processing unit, thermal infrared imager, visible light camera, combined inertial nevigation module and clinometer rule, and described signal processing unit is used for calculating according to each signal of uploading the positional information of target.

2. airborne equipment target locating set according to claim 1, it is characterized in that: described signal processing unit is comprised of A/D, FPGA and the DSP that communication connects, described A/D comprises A/D module and 422 communication modules, described FPGA comprises video acquisition module, view data scheduler module and communication control module, and described DSP comprises that target localization resolves module.