If you are struggling with how to let the camera only detect people, this article will be very helpful for setting up person detection only via Reolink Client.
Applies to: Reolink cameras which can support human/vehicle detection function
Please refer to the detail in How to Set up Smart Person/Vehicle Detection via Reolink PC Client
If you want the camera only to record the vehicle, please insert a Micro SD card or connect the camera to Reolink NVR, go to Camera Settings > Surveillance > Record, and enable Schedule.
Under the Alarm setting, enable the Person detection type only and choose the time and date you want for person detection. Tap the Save button to save settings.
Same for the Email/FTP/Siren/Push.