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Distributed synchronous collection sensor network system

A sensor network and synchronous acquisition technology, applied in transmission systems, digital transmission systems, time-division multiplexing systems, etc., can solve problems such as lack of flexibility and achieve high-precision synchronization

Active Publication Date: 2019-02-15
XIAN FLIGHT SELF CONTROL INST OF AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of this method is the lack of flexibility. When the number of distributed sensor nodes required is too large or needs to be expanded, the synchronous interface of the information processing unit will have to pay a large price to support

Method used

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  • Distributed synchronous collection sensor network system
  • Distributed synchronous collection sensor network system
  • Distributed synchronous collection sensor network system

Examples

Experimental program
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Effect test

Embodiment 1

[0023] to combine figure 2 and image 3 The synchronization scheme of a distributed positioning and orientation system is described.

[0024] image 3 The schematic distributed positioning and orientation system is a typical distributed sensor network system, which is specifically composed of: integrated processing computer 1, inertial measurement unit group 2, and fiber grating demodulator 3. The inertial measurement unit group 2 includes one high-precision fiber optic strapdown inertial measurement unit and three same low-to-medium precision fiber optic strapdown inertial measurement units, and the type and quantity of the fiber optic strapdown inertial measurement unit will vary according to the different requirements of the application scenario Make flexible adjustments. Fiber Bragg grating demodulator is an auxiliary sensor unit, and it is generally enough to configure one in the entire network.

[0025] image 3 The comprehensive processing computer 1 in the comput...

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Abstract

The invention relates to the sensor synchronous collection technology, and particularly relates to a distributed synchronous collection sensor network system. The system comprises an information processing unit node (1) and a sensor group (2), the sensor group (2) has a plurality of sensor nodes, and TTP control modules (3) and logic processing modules (4) are respectively designed in all sensor nodes of the information processing unit node (1) and the sensor group (2); each TTP control module (3) generates a first level network synchronization signal according to a TTP network timing sequenceplan on the basis of the TTP and transmits the signal to each logic processing module (4); and the logic processing module (4) generates a second level network synchronization signal according to theuse requirements of the present node on the basis of the first level network synchronization signal, and the node works according to the second level network synchronization signal. A multi-node synchronization method with high synchronization precision and flexible expansion is provided to meet the requirements of distributed sensor networks for information collection and processing synchronization.

Description

technical field [0001] The invention relates to sensor synchronous acquisition technology, in particular to a distributed synchronous acquisition sensor network system. Background technique [0002] In some applications, the layout of sensors has a distributed feature, requiring synchronous collection of information at multiple locations, and then further information fusion processing to obtain more abundant, higher-precision or more usable final information. [0003] The synchronization of sensor information is crucial to information fusion and directly affects the final fusion effect. The so-called synchronization means that the relative deviation of the physical time corresponding to the measurement information of each sensor used for fusion is controlled within the allowable range. Most sensors collect local information when they are used, and they do not have distributed characteristics. In order to achieve the effect of distributed system information fusion, how to e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04L12/403H04L29/08
CPCH04J3/0652H04L12/4035H04L67/12
Inventor 王华强赵利军魏学东张亚崇汤卓王涛樊亮李立功张金亮
Owner XIAN FLIGHT SELF CONTROL INST OF AVIC