Signal transmission system and vehicle

The invention discloses a signal transmission system and a vehicle, which are used in the technical field of vehicles, and the signal transmission system comprises an upper system module which is used for determining a configured signal transmission attribute of a to-be-transmitted signal based on a signal receiving object of the to-be-transmitted signal, and transmitting a signal numerical value corresponding to the to-be-transmitted signal based on the configured signal transmission attribute; wherein each different signal receiving object is configured with a corresponding signal sending attribute, and the signal sending attribute comprises at least one of the sending frequency, the sending period and the sending opportunity; and the lower-layer system module is used for receiving the signal numerical value corresponding to the signal to be sent, determining the signal to be sent according to the signal numerical value, and sending the signal to be sent to a signal receiving object. According to the invention, when the sending attribute of the to-be-sent signal needs to be adjusted, the signal sending attribute can be changed in the upper system module, so that the signal transmission of the signal transmission system can be changed, and the flexibility of the system and the use experience of a user are improved.