A vehicle-mounted detection system, a power source system thereof, a control method and a power source controller

The invention provides a vehicle-mounted detection system, a power source system thereof, a control method and a power source controller and relates to the field of power source control. The power source system comprises a small-power generator, a battery pack used for supplying power to the vehicle-mounted detection system, a charger connected with the small-power generator and the battery pack electrically, and a power source controller connected with the battery pack and the small-power generator electrically. The small-power generator and the battery pack are used for replacing a large-power generator, so that the requirement of the vehicle-mounted detection system for the peak power of the generator is reduced and the power source efficiency is increased. The small-power generator and the lithium battery pack replace the large-power generator, so that the lightweight design of the vehicle-mounted detection system is facilitated, noise and vibration are reduced, and user experiences and performance indexes can be improved.