Control system quantizer in wireless control device and its quantization feedback control method

Abstract

The invention provides a control system quantizer in a wireless control device and a quantization feedback control method of the control system quantizer, relating to the technical field of the quantization feedback control of the wireless control device. The quantizer comprises a system state resolver, a signal A-D converter, an embedded microprocessor and a wireless communication circuit which are connected in sequence, wherein the system state resolver is used for acquiring a system state resolving amount based on a singular value of a system matrix; the signal A-D converter is used for carrying out digital conversion on the system state resolving amount; the embedded microprocessor is used for carrying out singular value resolving on the singular value of the system matrix, giving outan information rate optimal allocation strategy, calculating quantization parameters and carrying out quantization; and the wireless communication circuit is used for carrying out source encoding andchannel coding on a quantization value, transferring the quantization value to a system state estimator for valuation and inputting an estimated value into the controller so as to realize quantizationfeedback control. According to the control system quantizer, the quantization feedback control of the system can be realized, and the minimization of required information rate can be realized on thepremise that the control performance of the system is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of quantization feedback control of a wireless control device, in particular to a control system quantizer in a wireless control device and a quantization feedback control method thereof. Background technique [0002] With the wide application of information and digital technology in modern control systems, quantitative feedback control has become a very important research topic in modern control theory and control engineering, and has received great attention. Such as air, land, water and underwater wireless control devices, all involve quantitative feedback control problems. [0003] In the quantitative feedback control process, the system status information needs to be transmitted to the controller through the wireless communication channel. The use of digital communication will result in the system state must be quantized and coded, and the quantization of the system state will inevitably produc...

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Problems solved by technology

However, when the control system has eigenvalues ​​that are conjugate complex roots, the system state will not be completely decoupled, and the decomposition matrix may also be a complex matrix

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