AMI Head-End System
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AMI Head-End System Automated system of control and accounting of electricity

What is Advanced Metering Infrastructure Head-End System AMI Head-End System is an automated system of control and accounting of electric energy. As stated in the Rules for the Use of Electricity (PKEE), AMI HES is a set of integrated into a single functional metrologically-certified system of local equipment for data collection and processing of metering devices, information transmission channels and devices for receiving, processing, displaying and recording information. That is, AMI HES allows you to remotely collect information from electricity meters and transmit it to the server where...

System architecture Usually AMI HES has a three-tier architecture Automated workplace the first (lower) level - meter medium - channels and means of data transmissio Survey service Data controller Radio Communication Module Radio channel Communication controller the first (lower) level 0001512,1 top - communication servers, applications and databases, user workstations and specialized software

Benefits AMI HES NIK The NIK software package provides an opportunity Connection of various metering devices, the total number of which can be more than 2 million pieces Database accumulatio Synchronization of databases located on different server Remote access to metering device Creating customized report Exchange of information between the database and other system Data transmission by different communication channels (dedicated wired lines, switched communication channels, radio communication, GSM communication, bank communication, Ethernet Connection of network components, operating...

AMI HES: data transfer methods Among the methods of data transmission in AMI HES systems are the most common PLC (signal transmission through power supply lines RF (signal transmission via radio channel RS-485 (signal transmission through a dedicated twisted pair of wires GSM-communication Each of them has its advantages and disadvantages. Below we will consider each method in more detail.

PLC A system that provides signal transmission over power lines Advantages Ability to create networks with a large number of consumer No need to lay additional cables. This allows, for example, to easily transfer an old house to a new syste There is no need for direct visibility of metering object The most reliable system Disadvantages High requirements for the condition of power lines (in particular, they work poorly in areas with overhead power lines). In case of poor condition of electrical grids, it is necessary to install additional equipmen High cost of meters with PLC interface...

Example of system architecture PLC 0001512,1 RESIDENTIAL BUILDINGS The slide shows an example of a PLC system for a residential area with high-rise buildings and for the private sector with low-rise buildings. RESIDENTIAL BUILDINGS Data controller TRANSFORMER SUBSTATION COLLECTION OF INFORMATION GSM or Ethernet CABLE POWER LINES COUNTRY COMPLEX Communication controllers installed at transformer substations are used to transmit the signal from the meters to the server (since AMI HES equipment is in this case installed directly in the power supply network). communication CABLE POWER LINES...

(ZigBee, radio communication) A system that provides signal transmission over a radio channel Advantages No wire They do not require special requirements for power lines, because they do not use the Do not require additional equipment at substations (for example, KS), it is enough to install, for example, the AGSM module - much cheaper devic Quick installation, without interfering with the power supply system Disadvantages The need for direct visibility between the "participants" of the networ If there is no direct visibility - it is necessary to install additional equipment (channel...

Example of system architecture RF (ZigBee, radio communication) RESIDENTIAL residential area with high-rise buildings Radio signal and for the private sector with low-rise 0001512,1 Different combinations of devices can be used to transmit the signal from the Module AGSM meters to the server - for example, AGSM module and access point, communication Radio signal controller and access point. Connection to a transformer substation in such a Radio signal network is not required, communication GSM or Ethernet communication Radio signal available facilities, where it is more appropriate for...

Systems RS-485 A system that transmits a signal through a dedicated twisted pair of wires Advantages Low cost of devices with RS-485 interface (compared to PLC or ZigBee Relative ease of installation, does not require intervention in the power supply syste No special requirements are required for power lines or visibility of objects, as communication is provided through a separately mounted twisted pair of wires Disadvantages Small maximum length of lines - about 300-500 Limited number of devices (consumers) in the network (available options 32/64/128 Due to the first drawback, it is not...

Example of system architecture RS-485 An example of the RS-485 system for a RESIDENTIAL residential area with high-rise buildings. To transmit the signal from the meters to the server, additional communication equipment is installed, the least expensive option is to use the AGSM module. For the nearby private sector, it is better to use radio communication, as the distance Twisted pair wires Twisted pair wires between the meters is much larger. GSM COMMUNICATION Radio signal SERVER Extender of radio MEASUREMENT Radio signal Radio signal Module AGSM Top-level communication channels: mobile...

Systems with GSM-communication Meters with a built-in GSM module are used to transfer data to the server Advantages No need to install additional communication equipment or wired communication to transfer information from the meter to the serve They do not depend on the distance of objects, the quality of power supply networks, the presence of physical interference between the meter and the data collection server Disadvantages High cost of meters with built-in GSM-modul The need to install sim-cards with a static IP address in each device, additional payment for mobile communications,...