Sensor data intelligent collecting system for navigation system

An intelligent acquisition and navigation system technology, applied in the direction of electrical digital data processing, instruments, analog-to-digital converters, etc., can solve the problems of increased interference, small space of inertial navigation devices, and inability to place inertial navigation sensor data acquisition modules in close proximity. To achieve the effect of fast switching

Pending Publication Date: 2019-04-05
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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Problems solved by technology

However, the internal space of the inertial navigation device is small, and the placement of each module is compact and subject to certain restrictions. The inertial navigation sensor data acquisition module and the inertial navigation processor module cann

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  • Sensor data intelligent collecting system for navigation system
  • Sensor data intelligent collecting system for navigation system
  • Sensor data intelligent collecting system for navigation system

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] The principle block diagram of the sensor intelligent acquisition system oriented to the navigation system is as follows: figure 1 As shown, it mainly includes three parts, which are the intelligent acquisition circuit of the inertial navigation system sensor, the high-speed asynchronous serial interface circuit of the inertial navigation system, and the inertial group measurement data processing.

[0029] 1. Design of intelligent acquisition circuit for inertial navigation system sensor

[0030] The inertial navigation system needs to collect several types of sensor data, such as gyroscope, temperature, acceleration, etc., and perform calculations to obtain important information such as the course and speed of the carrier.

[0031] The sensor data intelligent acquisition circuit mainly includes three parts, the first part is the sensor analog quantity acquis...

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Abstract

The invention discloses a sensor data intelligent collecting system for a navigation system. The system can preprocess the collected sensor data prior to transmission to improve the anti-interferenceability of the collected data and have a certain error compensation capability, the preprocessing process does not need a remote main control processor for intervention, the system is integrated witha full-duplex and dual-redundant high-speed asynchronous serial interface with RS422 level so as to complete high-reliability and high-speed transmission and update of the inertial sensor measurementdata and facilitate timely navigation resolving task of the CPU.

Description

technical field [0001] The invention belongs to the technical field of data acquisition and processing of missile-borne inertial navigation systems, and realizes the functions of high-precision acquisition, preprocessing and transmission of sensor data oriented to the navigation system. Background technique [0002] The inertial navigation system uses its own inertial components to establish and maintain the space reference and measure the movement of the carrier. The inertial navigation system processor will calculate the collected sensor data and output the carrier's heading, speed, position and attitude. However, the internal space of the inertial navigation device is small, and the placement of each module is compact and subject to certain restrictions. The inertial navigation sensor data acquisition module and the inertial navigation processor module cannot be placed close to each other. When the inertial navigation sensor data is transmitted between the two modules, the...

Claims

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Application Information

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IPC IPC(8): H03M1/12G01C25/00G06F13/42
CPCH03M1/124G06F13/4282G01C25/005
Inventor 原晨窦爱萍张晓曦封安隽鹏辉吴志川
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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