OTA refers to the remote management of mobile terminal equipment and data through the air interface of mobile communication. Operators release new versions of software on the platform, which can not only remotely update the system software of charging equipment, but also update the software versions of batteries and chargers with communication functions. The use of OTA remote management technology greatly improves the remote maintenance efficiency and reduces maintenance costs.

i. All devices can be upgraded synchronously.

ii. It can designate a separate device for remote upgrade.

iii. It can query the upgrade completion status.