Signal receiving system for receiving IoT terminal signals

Abstract

The invention discloses a signal receiving system for receiving terminal signals of the Internet of Things, belonging to the field of receiving and processing terminal signals. The system can process the clock signal and data signal in the terminal signal of the Internet of Things, wherein the envelope of the terminal signal represents the clock, and the phase represents the data. The system includes a down-conversion module, an up-conversion module, a first filter module, a second filter module, The first analog-to-digital conversion module, the second analog-to-digital conversion module, the phase detection module, the envelope detection module, the symbol judgment module and the preamble detection module; The filter module and two analog-to-digital conversion modules obtain the digital baseband signal of the reflected signal, and then detect the envelope of the digital baseband signal to obtain the bus clock signal, and perform phase detection on the digital baseband signal to obtain the bus data signal. The final data can be obtained after the bus clock and data signals are judged and preamble detected.

Description

technical field [0001] The invention relates to the field of signal receiving and processing of an Internet of Things terminal, in particular to a signal receiving system for receiving a signal of an Internet of Things terminal. Background technique [0002] In modern industrial production, especially in the automated production process, various sensors are used to monitor and control various parameters in the production process, so that the equipment can work in a normal or optimal state, and the product can achieve the best quality. Therefore, it can be said that without a large number of excellent sensors, modern production will lose its foundation. [0003] In basic subject research, sensors have a more prominent position. The development of modern science and technology has entered many new fields: for example, it is necessary to observe the vast universe of thousands of light-years at the macro level, to observe the particle world as small as fm at the micro level, an...

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Problems solved by technology

[0005] Moreover, IoT terminals equipped with sensors are also applied to various fields with the application of sensors. Processors are often one of the most expensive modules in embedded systems. Traditional IoT terminals generally use processors Realize the processing of sensor data. However, the power consumption of traditional IoT terminal equipment is mostly at the milliwatt level. Energy consumption greatly limits the performance and life of the terminal, and also increases the cost of network maintenance.

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