Zhuhai Skyray Electrical Power Technology Co., Ltd.

System introduction

Developed by Skyraytech, the PLC broadband automatic meter reading system is a network platform combining with the international advanced PLC, matured Ethernet and intelligent meter reading technique as a whole to read power meter data timely and realize broadband transmission through the powerline of residential area . After successful installation , it can supply a two-way broadband communication for power supply company, i.e., to collect and record remote meter data and, to control household electricity consumption, which is an important technical means for power supply company to strengthen the management of power consumption. Meanwhile, the platform can also add on PLC network business.

System structure chart

The AMR collector installed by the meter box of apartment building unit, collects the digital meters timely through their RS485 interface, and then transmits the meter-reading data to the local AMR concentrator through the powerline of residential area by means of the built-in PLC bridge; and finally, the data in AMR concentrator will be sent remotely to the AMR work station of power supply company by special lines such as ADSL/GPRS/CDMA/MV PLC, or Internet.

System advantages

Clear and simple system structure layout, fast and accurate meter-reading, reliable and stable communication, less cabling labor and therefore investment, improved line loss statistics. Prevent electric larceny to assure power consumption billed and paid on time to secure the benefit of power supply company.

System benefits

1. It adapts to digital ammeter with RS-485 Bus. Each household with an ammeter, concentrated ammeter box has become a popular trend for Power Company so as to offer a well condition for digital centralized metering rather than the traditional way of carrier wave metering which is not suitable at all.

2. From ammeter to Meter Interface Unit, it uses 485 Bus to meter which is the simplest and most economical way.

3. From Meter Interface Unit to Data Concentrator Unit, only the bidirectional communication of broadband is the fastest, most reliable, most stable way which heads to the development of centralized metering.

4. Between Meter Interface Unit and Data Concentrator Unit is the usage of Skyray PLC technique which is not only endowed with the advantage of stability on high–speed broadband network, but also the PLC technique advantages of no wiring and no huge burden of construction.

5. This PLC network automatic meter reading system can also appreciate Internet access of PLC business, which makes Power Company to strengthen electricity consumption management while to benefit from enormous Internet market world.

The system can be applied to all single phase and three-phase meters with RS485 interface.

Residential Area------Ethernet Meter Reading System

It is a system combined mature Ethernet technology with intelligent centralized meter reading technology, and it is a high-tech product rolling meter reading and broadband network communication into one. By installation of the system in sub districts and connecting sub district broadband network with Internet, it can transmit the meter-readings to the central station of Power Company which is an important technical means used to strengthen management of electric marketing automation.

This system supports remote meter reading of all single phase and three-phase meters by DL/T645 1997 code of multifunctional meter communication. Due to the full use of Ethernet and low voltage power lines network resources, it is less invested, obviously, stably and reliably and long-period used compared with other remote meter reading systems.It directs the modern development of meter reading.

System features:

quickly meter-reading, timely metering, reliable and stable communication, accurate meter-reading, safety and convenience

System advantages:

Clear and reasonable system structure layout; meter interface unit can collect, store and send meter-readings from each meter on time; release the total workload and ease labor intensity; improve accuracy of line loss statistics; prevent electric larceny to assure electric charge billed on time and safe operation of power grids.

Technical advantages:

Because of the full of Ethernet and low voltage power lines resources, the system is less invested, obviously, stably and reliably and long-period used.

The sub district Ethernet Network Meter Reading System (can extend the online function of at-home PLC) is composed of a network meter interface unit with built-in PLC bridge, network data concentrator unit, central management system, communication channels ( include Ethernet, electric hookup wires, RS485 Bus), switch, hand held computer and 485 meter.

System structure chart:

Residential Area------PLC Network Meter Reading System

The system is combined with international advanced PLC technology, mature and stable Internet technology and intelligent centralized meter reading technology the three together. This system can be used to all single phase and three-phase meters by DL/T645 1997 code of multifunctional meter communication. It works to remote meter reading from the sub districts to whole city. Due to its full use of Ethernet and low voltage power lines network resources, it is less invested, obviously, stably and reliably and long-period used compared with other remote meter reading systems. It directs the modern development of meter reading.

The simple and reliable solutions:

The digital meter in meter box of apartment connects to meter interface unit by 485 Bus, and the meter interface unit will transmit the meter-readings to data concentrator unit over power lines, and at last, these meter-readings will be remotely sent to the central station of Power Company by special lines or Internet.

System advantages:

Technical advantages:

Because of the full of Ethernet and low voltage power lines resources, the system is less invested, obviously, stably and reliably and long-period used.

System structure chart:

Residential Area------PLC Networking with Network Meter Reading System

The system is based on the Ethernet structure, acts up to the TCP/IP protocol, and combines the mature and stable Internet technology with intelligent centralized meter reading technology by international advanced PLC technology. It makes the remote meter reading and PLC network into one and supplies the householders the PLC online channels through broadband network formed by meter reading system and he existing low voltage power line network resources. The system is composed of a network meter interface unit with built-in PLC bridge, network data concentrator unit and central management system, with meter reading management soft wares. It transmits the data through PLC network, sub district broadband network and PLC backbone network which is an important technical means used to strengthen management of electric marketing automation.

System operating principles:

1. The installed meter interface unit collects meter-readings by using the surplus hookup wires to join up meters in series. While the PLC bridge built in meter interface unit offers online channels to householders.

2. The meter interface unit which connects to sub district broadband network could communicate with data concentrator unit by TCP/IP protocol so as to transmit local data.

3. The data concentrator unit which accesses to PLC backbone network could communicate with the central station to carry out the remote data transmission.

4. The central station links to the marketing system of Power Company that is to play the functions of recording, accounting and charging.

System structure chart: