An intelligent centralized controller based on ofdm technology

Abstract

The invention discloses an intelligent integrated controller based on the OFDM technology. The controller includes an A phase line, a B phase line, a C phase line, and a zero line having three-phase power supply. The A phase line and the zero line are connected to an AC-DC module therebetween. The A phase line, the B phase line, the C phase line and the zero line are in separate connection to a coupling transformer. The coupling transformer and a simulation front-end chip are connected. The simulation front-end chip is connected to a DSP chip through a SPI interface. The DSP chip is connected to a high-end ARM chip through a serial port. The high-end ARM chip is connected to a metering module through a serial port. An MMC interface of the high-end ARM chip is connected to a TF card thereon. The high-end ARM chip is in separate connection to a DDR3 memory and a NAND memory through a data bus. The high-end ARM chip is also in connection to a liquid crystal display contact screen through a video control bus. The high-end ARM chip is in connection to a GPRS module through a serial port. A router interface of the high-end ARM chip is also connected to a wired communication module. According to the invention, the controller has strong processing capability, fast speed and excellent expanding function.

Description

Technical field [0001] The invention relates to a street lamp control device, in particular to an intelligent centralized controller based on OFDM technology, which belongs to the technical field of the Internet of Things. Background technique [0002] The current information system in the field of street lamps is mainly a three-remote system for line management. The centralized controller in the three-remote system mainly implements loop control and acquisition. The existing centralized controller generally directly outputs a control signal to control the switch of the AC contactor to realize the switch of the loop, and it generally realizes the access to other equipment through the 485 interface. However, with the application of single-lamp monitoring, the centralized controller used for Sanyao has no power carrier module, so it can no longer meet the application requirements. Moreover, the main processing chips of centralized controllers used in Sanyao mostly use ARM9 chips, ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the main purpose of the present invention is to solve the problems of weak processing capability and short service life of current centralized controllers, and to provide a controller with strong processing capability and strong anti-interference ability. , long service life intelligent centralized controller based on OFDM technology

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