Care service control method, device, equipment and system when baby is retained in vehicle

The invention provides a care service control method, device, equipment and system when a baby is retained in a vehicle. The specific scheme comprises: monitoring whether a baby retention signal is received; if monitoring that the baby retention signal is received, controlling an audio and video sensor to collect audio and video data; determining a baby state according to the audio and video data, and determining a corresponding baby care strategy according to the baby state; the baby care strategy is a control strategy for controlling a target function component in the vehicle to execute a specified action; and controlling the target function component to execute a specified action according to the corresponding baby care strategy so as to take care of the baby staying in the vehicle. Whether a baby is detained or not can be determined through a driver seat pressure sensor and a safety seat pressure sensor; the state of the baby can be determined by collecting and processing the audio and video data, and the