A method for determining a lock type of a lock device, the method being performed using a computer system, wherein the method comprises: collecting a group of raw data of a group of lock devices from a group of sensors respectively, the group of lock devices being respectively mounted to an object at a group of positions, and the group of lock devices belonging to at least one lock type of a plurality of lock types, wherein a sensor in the group of sensors comprises a dimension measurement camera and the raw data comprises dimension data of the lock device and/or wherein a sensor in the group of sensors comprises an image measurement camera and the raw data comprises image data of the lock device; obtaining a group of probability distributions based on the group of raw data, a probability distribution in the group of probability distributions being associated with a lock device in the group of lock devices and probabilities of lock types to which the lock device belongs; and determining a lock type of the lock device based on the group of probability distributions, wherein determining the lock type of the lock device comprises: generating a probability list based on a comparison between values in the group of probability distributions that are associated with a target lock type and values in the group of probability distributions that are associated with the plurality of lock types; and determining the lock type of the lock device based on the generated probability list. collecting a group of raw data of a group of lock devices from a group of sensors respectively, the group of lock devices being respectively mounted to an object at a group of positions, and the group of lock devices belonging to at least one lock type of a plurality of lock types, wherein a sensor in the group of sensors comprises a dimension measurement camera and the raw data comprises dimension data of the lock device and/or wherein a sensor in the group of sensors comprises an image measurement camera and the raw data comprises image data of the lock device; obtaining a group of probability distributions based on the group of raw data, a probability distribution in the group of probability distributions being associated with a lock device in the group of lock devices and probabilities of lock types to which the lock device belongs; and determining a lock type of the lock device based on the group of probability distributions, wherein determining the lock type of the lock device comprises: generating a probability list based on a comparison between values in the group of probability distributions that are associated with a target lock type and values in the group of probability distributions that are associated with the plurality of lock types; and determining the lock type of the lock device based on the generated probability list. generating a probability list based on a comparison between values in the group of probability distributions that are associated with a target lock type and values in the group of probability distributions that are associated with the plurality of lock types; and determining the lock type of the lock device based on the generated probability list. <EOS>