[Chinese instrument network meter patent] creative limit, instrumentation invention. Today we introduce a national patent for invention—a method for dynamically managing low-voltage carrier remote copying in multiple environments and around the clock. The patent was applied for by Anhui Jiuda Electronic Technology Co., Ltd. and was authorized on May 25, 2016.
Description of the Invention The invention relates to the field of remote meter reading technology for electronic low voltage carriers, and in particular to a method for dynamically managing low voltage carrier remote copying in a multi-environment all-weather dynamic management.
BACKGROUND OF THE INVENTION With the development of science and technology and advancement of information technology, a remote automatic centralized meter reading system based on low-voltage carrier communication has been widely used in electricity marketing electric energy metering, and has realized energy collection, electricity billing, and remote use. Electric monitoring and control, such as a series of power management automation, computerized management, and received good results. However, since the main function of the low voltage power line is to transmit electric energy and use it as a communication line, its channel condition is much more complicated than that of the conventional wired communication line, which seriously affects the communication effect between the communication terminals.
Therefore, in the underlying communication between the low-voltage carrier remote centralized meter reading system concentrator-collector-smart meter, there are problems such as irregular impedance variation of the communication channel, random variation in attenuation, and a large number of interference sources in the channel. Power lines become an undesirable communication medium. The traditional method of governance is mainly to increase the number of concentrators and repeaters, not only to increase the follow-up capital investment, but also to have a certain effect on the existence of a light source base station, resulting in a high reduction of power lines, high noise, high deformation, currently There is no effective solution in the country.
SUMMARY OF THE INVENTION The purpose of the invention patent is to remedy the defects of the prior art and provide a method for dynamically managing low-voltage carrier remote copying in a multi-environment all-weather dynamic management.
Figure 1 is a block diagram of the invention
From the technical principle, the data collector collects the parameters of the smart meter through low-voltage power line carrier communication, and transmits the collected parameters to the microprocessor. The microprocessor converts the received parameters into digital signals and sends them. To the carrier chip, the carrier chip carries out carrier modulation on the digital signal, and the modulated carrier signal passes through a filter circuit to perform filtering processing and a power amplification transmission circuit to perform power amplification, and then is coupled to a band-pass filter circuit through a coupling circuit to perform bandpass. In the filtering process, the carrier signal from the bandpass filter circuit is further subjected to demodulation processing of the carrier chip, converted into a digital signal and transmitted to the microprocessor, and the digital signal is sent to the microprocessor through the microprocessor. In the main station.
The invention is simple in structure, scientific and reasonable in design, low in manufacturing غير مجاز مي باشدt and strong in anti-jamming capability, and can effectively improve the reliability and accuracy of remote centralized meter reading and the authenticity of line loss data in the public variable station area. It is an effective system to solve the low pressure. There are high-reduction, high-noise, and high-deformation problems on the carrier power line, and the electronic low-voltage carrier remote centralized automatic meter reading system that adapts to multi-environmental and all-weather online dynamic management.
For more information, please download the full specification of the patent.
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