Power Line Communication (PLC) is a technology which allows data to be transmitted by existing power lines. With this technology, we can use the power line which transmits the current as the communication carrier, load and transmit the high-frequency signal which includes the information by the power line, and finally use the special demodulator to separate the signal and send it to the terminal equipment. PLC reduces the cost greatly and improves the efficiency of information transmission.
PLC is divided into broadband PLC and narrow band PLC, generally speaking, narrow-band PLC system is mainly used in the communication frequency band below 500kHz.
PLC is widely used in technologies such as Smart Grid and micro-inverters. In smart grid, PLC can solve practical problems such as transformer relationship, three-phase unbalance, disturbance at home for electricity companies and consumers.
With the chip self-designed by Topscomm, we developed and designed the PLC solution, including meter, communication module, DCU, MDMS, etc. Up to now, our narrow-band carrier products have been extensively installed and used in all terrain, all scenes, all climates, etc. Furthermore, our products can work very well in severe weather environments such as high temperature, low cold, high altitude and high humidity.
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Qingdao Topscomm Communication Co., Ltd was established in March 2008 with a registered capital of 657 million yuan. It was listed on the Shanghai Stock Exchange in October 2016 (stock code 603421). The company's headquarters is located in the Software Park of South District, Qingdao, China and has built a 360,000 square meters of high-tech industrial park in the high-tech zone.Topscomm Communication is actively involved in industrial fields such as "Ubiquitous IoT, Integrated Energy Efficiency Management, Power Information Communication, Arc-Fault Protection, and Smart Fire Protection". Topscomm communication has a profound technical reserves and perfect product system, focusing on the basic theoretical research of Power Line Carrier communication technology and Bus communication technology, has been developing many industry's leading integrated solutions and "software + hardware + service" products, which mainly used in the national smart grid data acquisition system. Topscomm communication has a rich experience in the power deepening application and information system construction. Relying on its in-depth understanding of smart grids, Topscomm has continued to develop technologies such as medium-voltage PLC, distribution network automation, power quality, 10kV charging stations, and arc fault protection in the field of low-voltage power consumption, and actively expand new areas of technology applications.Topscomm owns more than 200 independent intellectual property rights such as IC design, field communication, electronic technology and systems, participating in the formulation of 12 national-level power and fire industry related standards, and has won 3 national, provincial and municipal science and technology progress awards. It is a national high-tech enterprise, a key software enterprise within the national planning layout. Topscomm is certified by CCC, Measurement Management System, ISO9001, ISO14001, OHSAS18001, CNAS, etc.
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