Advanced Metering Infrastructure（AMI）uses various advanced technologies such as modern electricity, electronics, computers and network communication to form a complete network architecture(between the power company and the electricity consumer). It supports IEC international standard communication protocols and forwarding protocols, and is suitable for the management of electricity consumption information and grid quality monitoring of all electricity consumers, substations and residential buildings.The whole system consists of main station system software, mobile phone APP, concentrator, terminal (collector), HHU (handheld unit), IHD (In home display), "smart meter" and "smart device". It covers an automated and intelligent information management system of collection and control various metering points and terminal device of the power grid, smart home device, power sharing device, integrates power grid information collection, monitoring, calculation, analysis, and management .
Its main function is to provide the power company with data collection and power consumption monitoring of metering points (single and three-phase energy meters), intelligent switches, intelligent transformers, etc., and to monitor the voltage, current, power quality and other important indicators of power supply reliability of the power grid in real time and intelligently，To realize the integrated analysis and management application of electric energy information, and then provide data reference for the optimization of the entire power grid, and on this basis to carry out line loss analysis and other demand management applications；Providing electricity sales management for prepaid customers and electricity bill management for postpaid customers.As well as providing the operation and management platform for users' smart home devices and shared PV power devices.
The advanced system platform automatically guards the service of each key link, and provides reliability, security and stability guarantee for the whole electric energy data acquisition and comprehensive management and analysis system
Protocol support (support IEC international standard communication statute, State Grid 645 statute and South Grid statute)；
Communication methods (network / dedicated line / telephone dial-up / GSM / CDMA / GPRS / WIFI, etc. )；
Meter reading methods (automatic timing, manual replenishment, active upload, manual import)；
Automatic task management (automatic reconnection, automatic retransmission, manual intervention possible)；
Remote parameter setting (support two-way communication, can read and set the parameters of the meter remotely)；
Parallel reading (supporting simultaneous multi-device, multi-channel)；
Status queries (message buffering and system operation)；
Service support (standard protocols and forwarding protocols)；
The type of data to be collected on a cyclic basis (collection of all types of data: electrical energy data, operating parameters, freeze data, load curves, etc.)；
Encryption mode (the communication data between the master station software and the collection device and between the collection device and the meter support AES128 ciphertext transmission).
provide a variety of data collection device: data collection device is mainly used: concentrator, terminal, meter GPRS module, collector, handheld terminal (HHU), etc.
According to the communication method, there are three main ways to obtain data from the master station：
RS485 method (direct connection method), can be applied to concentrators, terminals, collectors and meters that support RS485 communication, the method is suitable for testing and commissioning.
GPRS, network cable, WIFI method (network method), can be applied to concentrators, terminals, collectors and meters that support GPRS communication.
RS232 method (direct connection method), which can be applied to handheld unit (HHU).
According to the data acquisition method, they can be divided into the following four types:
Active uploading: that is, the data collection device actively sends data to the master system, and the master system automatically saves the data to the database of the master system after receiving the data. At present, this method is mainly applied to: total meter data collected through the concentrator, active registration information of electricity meters, real-time alarm information of electricity meters, real-time data of electricity meters collected through terminals, etc.
Automatic reading: that is, the master station system automatically reads the meter freeze data saved in the device or module from the data collection device or meter GPRS module at regular intervals, and automatically saves the data to the database of the master station system after successful reading.
Manual replenishment: that is, manually read the frozen data from the data collection device or meter GPRS module through the master system software and save it in the database of the master system.
Manual import: that is, the meter reading data saved in the device is manually imported into the master system software and saved in the master system database through the connection with the handheld terminal (HHU).
Reading meters with PLC, RF, RS485 communication using concentrators via PLC, RF, RS485
Use terminal to read meters with 485 communication function or other communication function through RS485 or other means
The master station software reads meter data directly through the meter GPRS module.
Use collector to read meter data via RS485.
Use handheld terminal (HHU) to read meter data via RS485, RF, IR, etc.
Data storage：
All electricity consumption data and alarm information are collected through the data collection software (i.e., the predecessor) installed on the data collection server, and the data collection software automatically saves the collected The data is automatically saved in the database of the master system by the data collection software, which only checks the validity and legality of the data and saves only the valid and legal data. The data saved by each data collection software are all basic data (i.e. original data).
Data calculation, statistics, analysis：
The electricity consumption data and alarm information obtained through each data collection software and handheld terminal (HHU) are all basic data, and in order to better apply these data, special In order to better apply these data, special software services are designed to check, calculate, count and analyze these basic data, so as to monitor the operation of electricity meters and even the whole power grid and electricity consumption.
By installing a user-interactive display device (IHD) with the energy meter, it is possible to visualize the electricity information, event records, meter status, etc. It can also receive information about power outages, restoration notifications and charge notifications from the power supply department, allowing users to have a comprehensive and intuitive understanding of their own electricity consumption. It also allows users to receive information such as power outage, restoration notice, and bill deduction notice from the power supply department.
The platform is applicable to smart home devices, users can bind with the installed smart home devices through mobile APP software, and can view the operation of the devices, read the data of the devices, set the parameters of the devices and control the devices remotely anytime and anywhere through the mobile APP. Users can check the operation of the devices, read the data of the devices, set the parameters of the devices and control the devices remotely anytime and anywhere.
The platform is applicable to shared power devices, users can bind and unbind shared power devices through mobile APP software, and can remotely control the devices through APP, and can send commands such as start use, end use, read power consumption data, and query historical power consumption records.
Location：Biaoji Building, Xiangzhou District, Zhuhai city, Guangdong Province
Mobile phone：13532292694（WeChat with number）
Mailbox：2049334114@qq.com
QQ：2049334114
RS485 Communication meter reading
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