Vehicle positioning device based on laser gyroscope strapdown inertial measurement unit

A strapdown inertial group and laser gyro technology, applied in the field of vehicle positioning equipment and vehicle positioning system, can solve the problems of restricting positioning equipment, low positioning accuracy, and high cost, and achieve the effect of eliminating blocking effect and improving accuracy.

CN104154916AActive Publication Date: 2014-11-19BEIJING INST OF SPACE LAUNCH TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-11-19

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Abstract

The invention, aiming to enhance a rapid maneuvering capability and an object targeting precision of a weapon system and satisfy requirements of a quick response, a high precision, a strong independence and a good reliability of the system on a vehicle positioning device, provides the vehicle positioning device based on a laser gyroscope strapdown inertial measurement unit. The vehicle positioning device includes: a laser strapdown inertial measurement unit in which a laser gyroscope is employed, an odometer assembly used for measuring a running speed and a running distance of a vehicle on ground, an elevation meter used for obtaining an altitude by measuring an atmosphere pressure of a level of the vehicle, a multimode satellite system which is compatible with single antenna and double antennas, and a display controlling apparatus assembly used for carrying out an intelligent match between positioning information of the vehicle positioning device and a road network electronic map. By means of advantages of being high in precision, stable in performance, wide in dynamic range, short in response time and high in reliability of the laser gyroscope, a positioning and orienting function which is high in precision, strong in independence and good in reliability is achieved through methods, such as a gyroscope demodulation technology, a multi-information fusion technology and the like, on the basis of a digital filter.
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Description

technical field

[0001] The invention belongs to the technical field of vehicle navigation and positioning, and relates to a vehicle positioning system; more specifically, it relates to a vehicle positioning device based on a laser gyro strapdown inertial group. Background technique

[0002] Modern advanced land combat vehicles, such as self-propelled artillery, long-range rocket launchers, shooting command vehicles, missile launch vehicles, etc., are generally equipped with advanced navigation and positioning equipment, which is used to provide accurate geographical location during the driving process of the vehicle. In order to ensure and enhance the rapidity and accuracy of weapon system operations, positioning equipment is required to have the characteristics of rapid response, high precision, high reliability, and strong autonomy.

[0003] In the late 1970s, the initial vehicle positioning system usually consisted of an odometer, a magnetic compass, a rate gyroscope and ...

Examples

Embodiment Construction

[0094] The following will be combined with Figure 1-2 Specific embodiments of the present invention will be described in detail.

[0095] figure 1 It shows a composition block diagram of a vehicle positioning device based on a laser gyro strapdown inertial group according to an embodiment of the present invention, including a laser strapdown inertial group using a laser gyroscope, and also includes: an odometer component, an altimeter component, a compatible unit Antenna and dual-antenna multi-mode satellite systems, display and controller components, and multi-mode satellite positioning and orientation components.

[0096] The laser strapdown inertial group includes a power module, a shock absorber, a meter assembly, a gyroscope assembly, an I / F board, a main control board, a navigation computer board, and a multi-mode satellite receiving board connected in sequence; the navigation computer respectively receives The measurement results of the odometer assembly and the alti...