FTTH PON network and home automation

GPON ONTs as point of connection for smart meters

What is “Home Automation”, “Smart Meter”.

  Home automation sometimes also called a smart home, which is the residential extension of building automation, with functions and features automatically and sometimes remotely control. 

home automation and smart meter

home automation and smart meter

  A smart meter is usually an electronic device, which support two-way communication between the meter and the central system, like a device measuring natural gas or water consumption information.

GPON, the representative FTTH PON technology

  In the FTTH PON market, more and more families are using Gigabit passive optical network (GPON) equipment to provide broadband access to Internet and local Telecos vendor’s network. FOT Blog now starting a complete new topic regarding to those two great technology and solution.

FTTH PON and home automation solution

FTTH PON and home automation solution

  Following is today’s hot topics and discussions from linkedin.

I am working on a project to build up an FTTH GPON network for use also in connecting smart meters. May I know if anyone knows how I will have to configure my ONTs for them to give normal internet service to my customers and at the same time have the Smart meters connected to their control office in the same ODN. I have been thinking of VLANs and VPNs for smart meters. if you have any case studies please share with me. thank you

VPN networks may help connected (ONT ans Smart meter)

You can think to have a VPN networks between the end office and the smart meters who was connected

There two options for connections: serial port access and Ethernet autonegotiation electrical ports

Option1: An optical network unit (ONU) supports the serial port access service, and transmits the service upstream to an optical line terminal (OLT) through a gigabit-capable passive optical network (GPON) port. Then the OLT forwards the service data to upper-layer devices. This process intelligently collects power consumption information in an electrical power system. A terminal unit collects meter information and transparently transmits it to an AMR server through an ONU serial port.
An ONU obtains serial port data through its serial port, encapsulates the serial port data into User Datagram Protocol (UDP) or Transmission Control Protocol (TCP) packets, and transmits the packets upstream to an OLT through a GPON port. The OLT forwards the packets to an upper-layer device and finally to the AMR server. After receiving the UDP or TCP packets sent downstream from the AMR server, the ONU restores the UDP or TCP packets to serial port data flows and transmits the data flows to terminal units.
Home automation wireless connected

Home automation wireless connected

Option 2:An optical network unit (ONU) can intelligently collect power consumption information in the electrical power system through gigabit Ethernet (GE)/fast Ethernet (FE) autonegotiation electrical ports, and transmit the data upstream to the optical line terminal (OLT) through gigabit-capable passive optical network (GPON) ports.The ONU is connected to a concentrator through a GE/FE autonegotiation electrical port. The concentrator is connected to a collector using power cables and sends the power consumption information collected by the collector to the ONU.
The ONU forwards the power consumption information to an OLT and the OLT forwards the information to the upper-layer device. Then the upper-layer device forwards the information to an AMR server.

Doubt about the above connected solution

Do I understand correctly that the most significant difference between your scenarios is that one uses serial, the other Ethernet? That being the case, you’d have to either source a serial-to-Ethernet converter (the electric power industry calls them “terminal adapters”), or a Smart Meter with an Ethernet interface.
I’m not aware of any ONU/residential gateways that have intergral serial ports. I don’t follow the Smart Meter market very closely, but have not heard of one that has an Ethernet interface. Adding a serial port to an ONU/residential gateway or adding an Ethernet port to a meter would be a simple task for the respective manufacturers; convincing one of them to do so is another question.
How Smart Meters Work

How Smart Meters Work

Most likely solution will be wireless, and VLANs would be appropriate

Most likely solution will be wireless. Zigbee is the favored solution for home energy management applications, and that’s the way the smart meter folks seem to be going. I can imagine that future residential gateways will include Zigbee for that purpose.
Another alternative could be HomePlug, HPNA or G.hn.
In response to your original question, VLANs would be appropriate. You’d have to design around whether the network goes for a 1:1 or an N:1 model.

No wireless! It can be the risk of explosion

Smart meters are typically employed using wireless mesh as the primary back feed. This is as simple as it gets for what are otherwise binary chunks of data. You did not state the type of metered service. Unless you are planning to add other services and using smart metering as a method to implement the last mile solution I question if the roi for a wired solution exists. I also question how a last mile implementation can be done at the pace of a typical utility company contract. If you are using this as an entree service and can gain access to connected solutions to all metered services ..water, gas, electric…then great but I think you will find that wiring to water meters that are in most cases close to the curb can become an issue. Water meters are typically rfid enabled versus electronic as is the case with wireless. Same with gas meters. The issue with gas can be the risk of explosion.

Partnering with an electricity company to deploy FTTH network

Thank you all for your contributions, We are looking at partnering with an electricity distribution company to be able to use their overhead infrastructure to deploy our FTTH network. They in turn are rolling smart meters, AMR, AMI so they need these networked using whichever methods are available, fibre being also an option.
Some companies have implemented similar solutions using fibre.
For my partnership to make business sense it’s better as I offer my GPON service to the customers we also connect smart meters.

 “You might want to consider whether a wired interface between the meter and the ONT presents a convenient opportunity for tampering. This is a very significant concern for electric distribution companies. “

PON and wireless metering combination in application

We are also working on same projects in Pakistan, as GPON is the emerging technology in our country. What we are planning, is to use wireless metering components to be connected with our ONT’s which would be on FIber. ( With WIFI).

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