Meter Concentrator Solution Based on TI AM3352

Smart grid (scenario application diagram) is a modern power transmission network. Using information and communication technology, digital or analog signals are used to detect and collect the power supply status at the supply end and the power use status at the use end. Then use this information to adjust the production and transmission of electricity, or adjust the power consumption of household appliances and corporate users, so as to achieve the purpose of saving energy, reducing losses, and enhancing grid reliability. In addition, this is also considered by many governments as a measure that can effectively reduce energy dependence and slow the global greenhouse effect.

The smart grid architecture includes an advanced metering infrastructure (AMI) to record the flow of all electrical energy in the system. AMR-automatic meter reading is also included to measure, analyze and collect energy usage data and transfer it to a central database (for billing, troubleshooting and analysis). But whether from a technical point of view or an economic point of view, it is impractical for all meters to communicate directly with the utility server.

Therefore, the data concentrator is an important node in the AMI network, which is networked with multiple utility meters and central utility servers, and realizes data communication between the meter and the utility server. Data concentrators located at multiple points in the infrastructure securely aggregate data from a controlled number of meters and send relevant information to the utility server.

In addition, there are three main functions listed:

1. Data acquisition and processing-user power consumption, exchange of analog information, power quality statistics, etc.

2. User management-three-phase industrial users, one-way industrial users, residential users, public utilities, etc.

3. Optimize the network-time synchronization, real-time topology display, performance management, performance testing, etc.

Reference

Smart grid (scenario application diagram) is a modern power transmission network. Using information and communication technology, digital or analog signals are used to detect and collect the power supply status at the supply end and the power use status at the use end. Then use this information to adjust the production and transmission of electricity, or adjust the power consumption of household appliances and corporate users, so as to achieve the purpose of saving energy, reducing losses, and enhancing grid reliability. In addition, this is also considered by many governments as a measure that can effectively reduce energy dependence and slow the global greenhouse effect.

The smart grid architecture includes an advanced metering infrastructure (AMI) to record the flow of all electrical energy in the system. AMR-automatic meter reading is also included to measure, analyze and collect energy usage data and transfer it to a central database (for billing, troubleshooting and analysis). But whether from a technical point of view or an economic point of view, it is impractical for all meters to communicate directly with the utility server.

Therefore, the data concentrator is an important node in the AMI network, which is networked with multiple utility meters and central utility servers, and realizes data communication between the meter and the utility server. Data concentrators located at multiple points in the infrastructure securely aggregate data from a controlled number of meters and send relevant information to the utility server.

In addition, there are three main functions listed:

1. Data acquisition and processing-user power consumption, exchange of analog information, power quality statistics, etc.

2. User management-three-phase industrial users, one-way industrial users, residential users, public utilities, etc.

3. Optimize the network-time synchronization, real-time topology display, performance management, performance testing, etc.

Reference scenario application diagram (2) is a schematic diagram of a smart grid.

1. Collect all relevant energy consumption data through a collector

2. The data concentrator collects meter information on each AMI node by PLC or wireless, and performs data communication with the utility server.

3. More information interaction channels, support CAN, WIFI, 3G, optical fiber, etc. Is a schematic diagram of a smart grid.

Scene application diagram

Display board photos

Solution block diagram

Scheme architecture diagram

1. Collect all relevant energy consumption data through a collector

2. The data concentrator collects meter information on each AMI node by PLC or wireless, and performs data communication with the utility server.

3. More information interaction channels, support CAN, WIFI, 3G, optical fiber, etc.

Core technology advantages

1. Design based on AM335x ARM Cortex-A8 processor reduces development time by up to nine months

2. Integrated communication interface includes two Ethernet (MAC) ports, USB and up to eight UARTs for easy interconnection with other systems in the smart grid

3. Developers can use multiple PLC stacks at the MAC and PHY layers to create designs that support PLC-Lite ™, PRIME, G3, IEEE-P1901.2

4. Developers can connect their data concentrator products to various home and building automation applications through IPv4, IPv6 and 6LoWPAN protocols

Solution specifications

Mainly uses AM3359 Cortex-A8 as the core, and its frequency operation is 300MHz

1.Support three-phase power line communication

2.Support lower-power 2.4-GHz and sub-GHz RF communication

3.2-Gbits of DDR2 SDRAM memory

4.2-Gbits of NAND flash memory, 64-Mbits of SPI flash, and a 256-kBit I2C EEPROM

5.3 RS-485 ports, 2 RS-232 ports

6.2 1-Gbit Ethernet interfaces

7.1 SD / MMC connector / 2 USB ports / Temperature sensor / 4 user LEDs

8.Support 120- / 240-V AC / DC supply, and also support external 12V DC Supply