Precision detection method and device, electronic equipment and medium

The embodiment of the invention provides a precision detection method and device, electronic equipment and a medium. The precision detection method comprises the following steps: acquiring first coordinate data of a corner point of a preset entity parking space based on a preset optical positioning system; generating a visual parking space according to image data of an entity parking space collected in a vehicle driving process; determining second coordinate data of an angular point of the visual parking space based on the self-positioning of the vehicle; comparing the first coordinate data and the second coordinate data, and determining the distance and the deviation angle of the visual parking space relative to the entity parking space; and obtaining the visual parking space precision based on the distance and the deviation angle. According to the embodiment of the invention, the accuracy of the visual parking space collected for the entity parking space relative to the entity parking space can be accuratel