Abstract: In a method for vehicle positioning, a positioning apparatus in a to-be-positioned vehicle obtains a global positioning system (GPS) position covariance of the to-be-positioned vehicle. When the GPS position covariance is less than or equal to a preset position covariance threshold, the apparatus obtains initial position information of the to-be-positioned vehicle and vehicle information of a surrounding vehicle. The apparatus determines a first position reckoning result of the surrounding vehicle based on the initial position information of the to-be-positioned vehicle and the vehicle information of the surrounding vehicle, and determines a second position reckoning result of the to-be-positioned vehicle based on the first position reckoning result.

Abstract: Embodiments of the present disclosure relate to a primary plugin, a drawer and a distribution panel for a power distribution system. A primary plugin for a power distribution system is provided, the primary plugin comprising: a body; a socket assembly mounted on the body; a measuring unit mounted around the socket assembly and configured to measure electrical parameters in the power distribution system; and a data processing unit mounted on the body and coupled to the measuring unit, the data processing unit being adapted to receive and process the electrical parameters measured by the measuring unit and to upload the processed electrical parameters to a gateway.

Abstract: Embodiments of the present disclosure relate to a primary plugin, a drawer and a distribution panel for a power distribution system. A primary plugin for a power distribution system is provided, the primary plugin comprising: a body; a socket assembly mounted on the body; a measuring unit mounted around the socket assembly and configured to measure electrical parameters in the power distribution system; and a data processing unit mounted on the body and coupled to the measuring unit, the data processing unit being adapted to receive and process the electrical parameters measured by the measuring unit and to upload the processed electrical parameters to a gateway.