Abstract: A vehicle type identification method and device based on mobile phone data for solving the problem of providing a convenient and low-cost vehicle type identification method. The method includes: obtaining trajectory data recorded by a mobile phone of a user within a period of time; judging mobile phone users who are on the same vehicle according to the data, and obtaining a vehicle trajectory and the number of passengers corresponding to the vehicle trajectory; obtaining a vehicle origin and destination according to the vehicle trajectory, and obtaining an origin-destination type of the vehicle trajectory in combination with geographic data; obtaining vehicle driving data according to the vehicle trajectory; and obtaining service area data of vehicle staying according to the vehicle trajectory. The cost of obtaining data by using mobile phone big data and by using mobile phone signaling data collected and provided by an operator is low.

Abstract: A vehicle type identification method and device based on mobile phone data for solving the problem of providing a convenient and low-cost vehicle type identification method. The method includes: obtaining trajectory data recorded by a mobile phone of a user within a period of time; judging mobile phone users who are on the same vehicle according to the data, and obtaining a vehicle trajectory and the number of passengers corresponding to the vehicle trajectory; obtaining a vehicle origin and destination according to the vehicle trajectory, and obtaining an origin-destination type of the vehicle trajectory in combination with geographic data; obtaining vehicle driving data according to the vehicle trajectory; and obtaining service area data of vehicle staying according to the vehicle trajectory. The cost of obtaining data by using mobile phone big data and by using mobile phone signaling data collected and provided by an operator is low.

Abstract: The disclosed subject matter presents an automatic charging system for electric vehicles. The automatic charging system includes a vehicle-mounted control unit, a charging control unit, a vehicle-mounted receiving terminal, a charging terminal and a power supply device. The charging terminal seeks target, connects and charges as guided by an ultrasonic or infrared signal from the receiving terminal. By designing an automatic charging system for electric vehicles and by making use of ultrasonic or infrared technology, the disclosed subject matter achieves intelligent and automated charging of electric vehicles for the entire process from the beginning to the end, and can automatically charge a plurality of electric vehicles, respectively, according to a desired sequence.

Abstract: A mobile phone may include a phone body, a recessed portion and an image capturing unit that is retractable and received in the recessed portion. The phone body and the image capturing unit and the phone body are connected through a connecting rod that has a first movement controlling unit, a second movement controlling unit, and a third movement controlling unit to control the movement of the image capturing unit. The mobile phone may further includes a releasing mechanism, which includes a button and a fastening unit, wherein the fastening unit is configured to secure the image capturing unit in the recessed portion, and the fastening unit is controlled by the button to release the image capturing unit from the recessed portion when the button is pressed.