Abstract: Disclosed is a method for controlling charging of charging devices, which includes: serially connecting the plurality of charging devices into a charging queue and detecting parameters of at least some charging devices in the charging queue; determining a relative location of each charging device in the queue; and starting or stopping charging of each charging device according to the parameters and the relative location of the charging device. Also disclosed is a charging control device. Accordingly, the connection of any number of charging devices into the queue at any time without exceeding the power load by controlling start and stop of charging each charging device. Overcharging phenomenon can be prevented by stopping charging in a timely manner, saving electric energy. Also, the charging device at the queue tail can be charged preferentially, making it convenient for picking up a trolley from the queue tail, and better satisfying operation needs.

Abstract: Disclosed is a security control device comprising a connector including a male plug having a first electrode, a female socket having a second electrode, a first control component on first electrode side and a second control component on the second electrode side, and a detection control switch. When a current connector and its anterior connector connect, a first control component of the current connector and a second control component of the anterior connector are coupled by way of non-contact sensing after a first electrode of the current connector and a second electrode of the anterior connector contact; and when the two connectors disconnect, the first control component of the current connector and the second control component of its anterior connector are decoupled before the first electrode of the current connector and the second electrode of the front connector separate. Also disclosed are a charging device and a trolley.

Abstract: An electric connector, includes an insulated housing, a male plug at one end of the housing and a female socket on the opposite end of the housing. The male plug and female socket respectively have an electrode and an electrode slice which is electrically connected with a pair of the male plug and female socket inside the housing. The female socket has an opening adaptive to accommodate the male plug and enable a connection between the electrode of the male plug and that of the female socket. The invention also provides a movable device using the electric connector. According to the invention, a plurality of movable devices with a charging unit can be charged simultaneously and the charging process can be simplified, thereby improving the utilization and safety of the movable devices and lowering the cost of maintenance.

Abstract: A frame structure includes a frame body and an auxiliary frame fixedly connected to the frame body. The frame body has a front bracket and a frame base. The lower end of the front bracket does not connect with the frame base. The upper end portion of the auxiliary frame is connected to the front bracket of the frame body, and the lower end of the auxiliary frame is connected to the frame base at the rear of front wheels of the frame. A trolley with the frame structure can prevent it from leaning forward or overturning, which increases security and stability.

Abstract: Disclosed is a mobile self-service method and a system including a movable service terminal configured to acquire, verify and parse user data to obtain flight number information about a user; a background service system configured to interact with the movable service terminal and provide service data in response to a request sent from the movable service terminal. The terminal is further configured to interact with the background service system to verify the flight number information, confirm a corresponding flight, establish real-time indoor positioning information about the movable service terminal, and provide a navigation prompt from the current position to a corresponding boarding gate or a specified position according to the service data and the real-time positioning information. The present invention can provide personalized flight information, positioning and navigation prompts to passengers waiting for flights in airports, provide path planning and estimate the required time.

Abstract: An apparatus and method for charging movable devices like carts or trolleys. Each movable device includes a charging unit and a charging connector coupled to the charging unit, including a male plug at one end, a female socket at the other end, and two electrodes interconnected. When the devices are in a queue, the male plug of the connector of a device in the rear is connected to the female socket of the same in the front so that a plurality of movable devices are connected to each other in tandem and charged simultaneously. The method includes connecting the plurality of devices in tandem with the respective connectors so that the devices can be charged simultaneously. A plurality of movable devices can be charged simultaneously and the charging process can be simplified, thereby improving the utilization and safety of the movable devices and reducing the cost of maintenance.

Abstract: A supporting structure includes a support body, stationary shafts and stoppers disposed at opposite ends of the support body coaxially with the stationary shafts. Each of the stationary shafts is provided with an arc-shaped notch matching with the stoppers circumferentially so that the stoppers are rotatable about the stationary shafts along the arc-shaped notch, thereby allowing an installing angle of the supported member on a movable device, such as trolleys, to be set and adjusted, so as to satisfy different needs of users for the orientation of the supported member. Also provided is a multimedia player employing the supporting structure and a movable device employing the player.

Abstract: A frame structure includes a frame body and an auxiliary frame fixedly connected to the frame body. The frame body has a front bracket and a frame base. The lower end of the front bracket does not connect with the frame base. The upper end portion of the auxiliary frame is connected to the front bracket of the frame body, and the lower end of the auxiliary frame is connected to the frame base at the rear of front wheels of the frame. A trolley with the frame structure can prevent it from leaning forward or overturning, which increases security and stability.

Abstract: An apparatus and method for charging movable devices like carts or trolleys. Each movable device includes a charging unit and a charging connector coupled to the charging unit, including a male plug at one end, a female socket at the other end, and two electrodes interconnected. When the devices are in a queue, the male plug of the connector of a device in the rear is connected to the female socket of the same in the front so that a plurality of movable devices are connected to each other in tandem and charged simultaneously. The method includes connecting the plurality of devices in tandem with the respective connectors so that the devices can be charged simultaneously. A plurality of movable devices can be charged simultaneously and the charging process can be simplified, thereby improving the utilization and safety of the movable devices and reducing the cost of maintenance.

Abstract: The invention discloses an electric connector, comprises an insulated housing, a male plug at one end of the housing and a female socket on the opposite end of the housing. The male plug and female socket respectively have an electrode and an electrode slice which is electrically connected with a pair of the male plug and female socket inside the housing. The female socket has an opening adaptive to accommodate the male plug the and enable a connection between the electrode of the male plug and that of the female socket. The invention also provides a movable device using the electric connector. According to the invention, a plurality of movable devices with a charging unit can be charged simultaneously and the charging process can be simplified, thereby improving the utilization and safety of the movable devices and lowering the cost of maintenance.