Mine personnel safety state estimation method based on set membership filtering under incomplete measurement

A state estimation and mine technology, applied in the direction of measuring devices, radio wave measuring systems, instruments, etc., can solve the problem that the probability assumption of system noise does not meet

Active Publication Date: 2020-07-17
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

However, these filters assume that the noise sources are random white noise and Gaussian noise
However, in the practical application of wireless positioning system, the probability assumption of system noise is sometimes not in line with reality, and a more reasonable assumption is that system noise is unknown but bounded

Method used

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  • Mine personnel safety state estimation method based on set membership filtering under incomplete measurement
  • Mine personnel safety state estimation method based on set membership filtering under incomplete measurement
  • Mine personnel safety state estimation method based on set membership filtering under incomplete measurement

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Embodiment Construction

[0117] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0118] like figure 1 As shown, the mine personnel safety state estimation method based on incomplete measurement lower-set filter includes the following steps:

[0119] I. Arrange multiple wireless sensors above the mine working area to collect the position and speed information of mine operators.

[0120] like figure 2 As shown, in order to improve the safety monitoring capability of mine operators in this embodiment, for example, six wireless sensors may be deployed above the mine working area so as to monitor the safety of workers in the area.

[0121] Each of the above wireless sensors is used to collect information such as the position and speed of mine operators. The information will be selectively transmitted to the filter through the transmission mechanism under incomplete measurement for personnel (safety status or) location estimat...

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Abstract

The invention discloses a mine personnel safety state estimation method based on set membership filtering under incomplete measurement. The method fully considers the incomplete measurement of a wireless sensor and unknown but bounded noise in a mine environment and constructs a set membership filter based on the incomplete measurement. The objective of the invention is to effectively process nonlinear errors in a mine operating personnel positioning system. According to the method, a system measurement equation is subjected to linearization processing, a scaling matrix and an unknown matrix are adopted to represent a linearization error, and a particle swarm algorithm is utilized to process the scaling matrix such that the linearization problem of the system is effectively solved, and theaccurate positioning of mine operating personnel is realized. Moreover, various filtering parameters are determined through positive semidefinite programming, and a recursive filtering algorithm is proposed to calculate a minimum state estimation ellipsoid containing the real state of the mine operating personnel such that the reliability of the mine operating personnel positioning system is improved.

Description

technical field [0001] The invention relates to a method for estimating the safety state of mine personnel based on incomplete measurement lower set filter. Background technique [0002] In the field of mine industrial safety technology, the wireless positioning system has an important application, and it has important practical significance for ensuring the safety of mine operators. Wireless positioning systems generally use advanced wireless transmission network information facilities, wireless intelligent nodes perceive data locally, and cooperate with other sensors to exchange relevant information about the monitored object. [0003] In actual engineering, the wireless positioning system is used to track and locate personnel on the industrial site, which improves the ability of the industrial monitoring system to perceive safety information. However, the energy supply of wireless sensors is quite limited. If the wireless sensor periodically transmits the measured signa...

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Application Information

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IPC IPC(8): G01S5/12
CPCG01S5/12
Inventor 白星振张金昌宋保业刘洋郑鑫磊
Owner SHANDONG UNIV OF SCI & TECH
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