Monitoring and controlling processor based on wireless network low-power level signal and processing method

A weak signal, wireless network technology, used in instruments, measuring devices, surveying and navigation, etc., can solve the problems of small capacity, large chip dependence, difficult to achieve mobile office and field office, etc., to achieve the effect of eliminating noise

CN101442324AInactive Publication Date: 2009-05-27UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2009-05-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to a monitoring processor used to extract a useful signal from high noise by being matched with a wireless router and so on in the remote monitoring and processing technique of a wireless network and a processing method thereof. The processor comprises a CPU, a communication module, a program read-write port module, a parallel communication module, an analog-digital conversion module, a constant current source module, a voltage transformation circuit, a signal filter and high voltage protection circuit, a signal amplifying module, a current signal adjusting circuit, a memory and a keyboard input circuit; and the method comprises: after the communication module receives a signal, firstly the threshold filtration of noise is performed, and the wavelet transformation processing of the signal is performed in the wavelet field through the CPU so as to reduce or completely eliminate the noise. Therefore, the processor and the method have the characteristics that the processor and the method can effectively extract the useful signal from a great amount of disorder noise signals, and automatically send the useful signal to a device such as a platform terminal and the like, and the point-to-point and one-to-many communications are realized; and the invention also provides a convenient and reliable method for mobile office work by utilizing the prior GSM network.
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Description

technical field

[0001] The invention belongs to wireless network remote monitoring, control and processing technology. In particular, a monitor and control processor and a processing method thereof that can be matched with a wireless router (wireless transceiver) for extracting useful signals from strong noise. The processor can be used to automatically extract data signals such as hydrological data, industrial data, important notices, and alarm information from random strong noise and send them to devices (equipment) such as control platform terminals for subsequent processing. Background technique

[0002] In the remote collection and monitoring of information such as hydrological data, working data, important notices, and alarm information through wireless networks, as well as in intelligent meter reading systems, centralized monitoring of cash transport vehicles, and centralized monitoring of car fleets, due to the environment There is a lot of noise interference in the...

Examples

Embodiment Construction

[0011] figure 2 It is the actual circuit structure and assembly diagram of this embodiment, wherein: the central processor CPU model is MSP430F147, the communication module 101 model is HEADER6, the program read-write port module 102 model is made up of 809 reset chip (produced by Texas Instruments) and HEADER14, parallel The model of the communication module 103 is MAX3471, the model of the analog-to-digital conversion module 108 is composed of a chip of the model ADS1240 and a crystal oscillator circuit composed of capacitors C16, C17 and XTAL1 components that provide clock signals, the model of the constant current source module 109 is AD421, and the transformer circuit 110 It includes a conventional transformer circuit composed of a light-emitting diode and two triodes, a signal filtering and high-voltage protection circuit 113 composed of a filter circuit composed of capacitors C19, C20, C21, and C27, and a voltage-limiting diode 385-2.5V (D3), and the signal is amplified...