Fault-tolerant method of redundant sensor measurement system
A sensor and measurement equation technology, applied in the field of sensor measurement, can solve problems such as failure to diagnose real-time faults, system loss, and large human subjective factors, so as to avoid subjectivity and untimelyness, ensure measurement accuracy, and improve reliability. sexual effect
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[0039] The main purpose of the present invention is to improve the reliability of the redundant sensor measurement system. The present invention proposes a fault tolerance method for redundant sensors. The method uses drift state estimation and state feedback technology to compensate for fault drift in real time. The drift fault sensor is no longer isolated but compensated in real time, thereby maintaining the redundancy of the system. It is very suitable for measurement systems with high reliability requirements.
[0040] like figure 1 As shown, it is a fault-tolerant method for a redundant sensor measurement system proposed by the present invention, and the specific steps are as follows:
[0041] Step 1. Determine the measurement equation of the redundant sensor measurement system according to the sensor arrangement in the redundant sensor measurement system:
[0042] m=Hω+ε (1)
[0043] where m is the measurement vector, H is the n×3-dimensional sensor measurement matrix...
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