What is the name of the interface for vehicle exhaust gas detection?

The scientific name of the OBD interface is also called the on-board automatic diagnostic system.

The scientific name of the OBD interface is also called the on-board automatic diagnostic system. Through OBD, the working status of some functional modules during the operation of the car can be detected. For example, exhaust emissions, engine failure, etc. For example, there are common satellite positioning devices based on OBD interface. This kind of GPS device can work as long as it is plugged into the OBD interface. By connecting to the mobile phone software, we can observe the car's location, working status, etc. in real time, which is very convenient. There is also an automatic locking device and automatic window opening device based on the OBD interface. This kind of device can also be connected to the OBD interface. It is also very convenient and can be operated by yourself.