O-Chip
Open Charger Interaction Protocol
With the increasing number of electrical buses the number of chargers is rising.
Cities are going to install chargers in the depots and along the lines.
With this the need to monitor and control the chargers goes along.
For a short time to market of a product a simple protocol is needed which can be used even on simple controllers or PLCs. O-Chip is addressing this need and avoids proprietary solutions.
The protocol allows to read out:
- Basic data of the charger like type, manufacturer and location
- The health of the charger to decide if it can be used
- The meter values of the charger like voltages, currents and temperatures
- Additional data of a connected bus which are available via the ISO15118 Interface
- Error logs of the charger
Furthermore a small set of commands is defined to reset a charger and to limit the maximum output power according to a load management.
Format
The protocol uses simple JSON text files which are send periodically via UDP/IP telegramms.
It can be used in a local network or a wide area network (e.g. internet).
O-Chip is connectionless, no TCP/IP connection has to be established, no use of Web Sockets or other overhead.
Specification
O-Chip is an open Standard which can be used without fees.
Download our development tool ChargeView
Our tool can speed up the development of your O-Chip application.
The tool allows the first steps and helps debugging the JSON syntax.
