Signal receiving circuit of energy resource monitoring device

Abstract

The invention discloses a signal receiving circuit of an energy resource monitoring device. The signal receiving circuit comprises a first triode used for receiving an infrared signal, wherein a signal amplifier is connected to the first triode, the signal amplifier is connected to a base electrode of a second triode by virtue of a first capacitor, an emitter electrode of the second triode is grounded, a collector electrode of the second triode is divided into two paths, one path of the collector electrode of the second triode is connected to a base electrode of the third triode by virtue of a second capacitor, the other path of the collector electrode of the second triode is connected to one end of a first resistor, an emitter electrode of the third triode is grounded, a collector electrode of the third triode is connected to a base electrode of a fourth triode by virtue of a fifth capacitor, an emitter electrode of the fourth triode is grounded, a collector electrode is used for outputting an analog signal, the other end of the first resistor is connected to the collector electrode of the third triode, a third resistor and a fourth resistor which are serially connected together are connected in parallel to two ends of the fifth capacitor, a signal is amplified by the signal amplifier after being received by the first triode, and then output after being coupled and amplified by the second triode, the third triode and the fourth triode, and the signal is output stably.

Description

technical field [0001] The invention relates to the technical field of energy monitoring systems, in particular to a signal receiving circuit of an energy monitoring device. Background technique [0002] my country is a big energy country, but it is also a big energy consumption country. Compared with foreign countries, my country's high-speed economic growth is based on high energy consumption and heavy pollution. Therefore, it is imminent to develop a circular economy and build a resource-saving society. Colleges and universities are large resource owners and energy consumers. The annual water and electricity expenses are tens of millions of yuan, and at least several million yuan. There is a huge saving potential. Today, when the whole world is emphasizing energy conservation, colleges and universities gather the best technology and talents, and focus on training and education. They should also adopt the style of saving energy resources and fulfill the responsibility of ...

AI Technical Summary

Problems solved by technology

[0003] To do a good job in energy conservation and emission reduction in colleges and universities, it is key to do a good job in energy measurement. However, most colleges and universities have not yet met the requirements of energy conservation management in terms of water, electricity, and heating. Consumption analysis and energy efficiency analysis cannot be implemented

In addition to the problems of measurement facilities, the key is the lack of system and the supervision and inspection work is not in place

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