Traditional Culture Encyclopedia - Traditional stories - The difference between ota upgrade and fota upgrade of automobile
The difference between ota upgrade and fota upgrade of automobile
1.OTA over-the-air (over-the-air) is a technology to realize remote management of mobile terminal equipment and SIM card data through the air interface of mobile communication. The air interface can adopt WAP, GPRS, CDMA 1X and short message technology.
OTA upgrade is no stranger to many mobile phone enthusiasts. Many Android phones or iPhone phones support OTA upgrade. Frankly speaking, OTA upgrade is to upgrade the mobile phone system online.
For example, Apple often provides new iOS version push for iPhone/iPad devices. Users can enter the phone settings, and the software update detects whether there are available system updates. If an update is available, users can directly click Online Upgrade to upgrade the iPhone/iPad device to the latest iOS system.
This online upgrade is called OTA upgrade, which can be completed through Wifi wireless network or mobile phone network, which is equivalent to upgrading through air wireless network. Generally, if the data package to be downloaded and upgraded is not large, you can directly use the mobile network to upgrade. However, if you need to download a larger upgrade package and consume more traffic, you need to use free traffic to upgrade on the Wifi wireless network.
Second, fota fota (firmware over the air download) firmware is translated into firmware. Generally speaking, cars have ECU, that is, electronic control unit, which can also be understood as the brain of the whole car. Can be responsible for the vehicle's executive mechanism, including engine, gearbox, driving mechanism, driver assistance system, etc. , equivalent to the CPU central processing unit in the car.
In the traditional sense, OTA upgrade is only for in-vehicle systems, and the content is obviously only for the addition, deletion, improvement and upgrade of software and entertainment functions in some in-vehicle systems. For the richer upgrade of the car itself, such as the specific functions of the automatic driving assistance system, braking intensity, NVH of the whole vehicle, dynamic response speed, shift logic and so on. If you want to upgrade properly, it depends on FOTA.
Thirdly, the difference of OTA generally refers to the general term of remote upgrade technology, while FOTA refers to the remote upgrade of firmware at the vehicle level. Relatively speaking, the definition of FOTA is relatively small, and the definition of OTA is relatively broad. FOTA is an OTA technology.
(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)
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