Abstract: Disclosed is a trolley baseplate including a plate body having a head end and a tail end, a first locking mechanism on the plate body adjacent to the head end and a second locking mechanism on the plate body adjacent to the tail end. The second locking mechanism is placed corresponding to the first locking mechanism and the structures of the two locking mechanism are fitting. When front and back trolleys are concatenated, the tail end of the front trolley and the head end of the back trolley can be locked to each other by means of the first locking mechanism and the second locking mechanism. The trolleys with the above structures can be concatenated more conveniently, and are not liable to overturn upon sudden braking or turning, which can effectively shorten the time for the staff to fasten two trolleys together.

Abstract: Disclosed is a trolley for carrying articles, including a base for carrying articles with wheels; a trolley frame fixedly connected to the base and extending upwards, the trolley frame forming a baffle at the front side of the base, the trolley frame including an upper portion, a middle portion and a lower portion, wherein the lower portion is connected to the front end of the base, the middle portion is provided with a foldable storage unit, and the upper portion is provided with a handle; and the base and the trolley frame form a carrying space, the foldable storage unit is provided with a retracted location and an unfolded location at which a storage space formed by the foldable storage unit occupies a part of the carrying space. A user may decide to unfold or retract the storage unit as necessary to properly place the articles being carried.

Abstract: A trolley is disclosed which includes a frame body, a handle and a player, the player and the handle being linked to one another and rotatable with respect to the frame body. Due to the linkage of the player and the handle, the player may rotate as the passengers rotate the handle, which makes the operation convenient and flexible. The player is driven to rotate through the rotation of the handle to adjust an angle of the player, allowing passengers to watch the player conveniently in various situations like standing, sitting, pushing the trolley, etc., which meets different needs of passengers well and also avoids the blocking of the handle to the player.

Abstract: Disclosed is a trolley baseplate including a plate body having a head end and a tail end, a first locking mechanism on the plate body adjacent to the head end and a second locking mechanism on the plate body adjacent to the tail end. The second locking mechanism is placed corresponding to the first locking mechanism and the structures of the two locking mechanism are fitting. When front and back trolleys are concatenated, the tail end of the front trolley and the head end of the back trolley can be locked to each other by means of the first locking mechanism and the second locking mechanism. The trolleys with the above structures can be concatenated more conveniently, and are not liable to overturn upon sudden braking or turning, which can effectively shorten the time for the staff to fasten two trolleys together.

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: Disclosed are a method system, and device of updating local software. The method comprises: broadcasting a broadcast message for updating local software to multiple client ends; determining whether a response message about existence of the update software is received, updating local software through the client end sending out the response message, or through a remote server if no response message is received. Accordingly, restriction on transmission speed by OTA server in software update process and congestion in data transmission process can be avoided, thus improving downloading speed and facilitate a simultaneous update of software for a mass of devices.

Abstract: Disclosed is a charging connector for a trolley having a power storage module, including a body carrying a circuit and a first electrode plate and a second electrode plate provided at two ends of the body respectively, the first electrode plate and the second electrode plate being electrically connected through the circuit and the first electrode plate or the second electrode plate having an elastic arch portion with a variable arch height. The charging connector can keep the elastic contact between the second electrode of a front charging connector and the first electrode of a rear charging connector during front-back series connection, eliminating the defect that the current charging connector has bad contact. The trolley with the connector can be charged reliably and the power energy can be used to a peripheral device onboard the trolley. Such a multimedia trolley does not need repeated manual checking.

Abstract: Disclosed is a trolley with a limit structure, including: a base destined to carry articles and equipped with wheels; a trolley frame fixedly connected to the base and having a handle for hand holding; a first limit plate provided at one side of the base near the trolley head and destined to limit the movement of an article being carried; and a second limit piece provided at one side of the base near the trolley tail and destined to limit the movement of the article being carried, the second limit piece appearing as a slope element having a substantially triangular end surface, and the slope element having a bevel facing the first limit plate. Even the length of goods exceeds the base, the goods can still be obliquely placed in the bearing space formed by the first limit plate, the second limit piece and the base.

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 trolley baseplate including a plate body having a head end and a tail end, a first locking mechanism on the plate body adjacent to the head end and a second locking mechanism on the plate body adjacent to the tail end. The second locking mechanism is placed corresponding to the first locking mechanism and the structures of the two locking mechanism are fitting. When front and back trolleys are concatenated, the tail end of the front trolley and the head end of the back trolley can be locked to each other by means of the first locking mechanism and the second locking mechanism. The trolleys with the above structures can be concatenated more conveniently, and are not liable to overturn upon sudden braking or turning, which can effectively shorten the time for the staff to fasten two trolleys together.

Abstract: Disclosed is a trolley for carrying articles, including a base for carrying articles with wheels; a trolley frame fixedly connected to the base and extending upwards, the trolley frame forming a baffle at the front side of the base, the trolley frame including an upper portion, a middle portion and a lower portion, wherein the lower portion is connected to the front end of the base, the middle portion is provided with a foldable storage unit, and the upper portion is provided with a handle; and the base and the trolley frame form a carrying space, the foldable storage unit is provided with a retracted location and an unfolded location at which a storage space formed by the foldable storage unit occupies a part of the carrying space. A user may decide to unfold or retract the storage unit as necessary to properly place the articles being carried.

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 method for real-time object locating and mapping includes: 1) performing real-time locating for a moving object in the range of movement; 2) updating a geomagnetic field map in the range of movement of the object in real time according to the locating of the moving object; 3) locating the next position of the moving object according to the updated geomagnetic field map; and repeating steps 2) and 3) until the object stops moving. A device for real-time object locating and mapping is also disclosed. The present application can solve the problem of real-time object locating and accurate geomagnetic field mapping without an indoor priori magnetic field map.

Abstract: A trolley is disclosed which includes a frame body, a handle and a player, the player and the handle being linked to one another and rotatable with respect to the frame body. Due to the linkage of the player and the handle, the player may rotate as the passengers rotate the handle, which makes the operation convenient and flexible. The player is driven to rotate through the rotation of the handle to adjust an angle of the player, allowing passengers to watch the player conveniently in various situations like standing, sitting, pushing the trolley, etc., which meets different needs of passengers well and also avoids the blocking of the handle to the player.

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: A method and system for locating an object are disclosed. The method comprises generating a plurality of sampling points in an activity area map for an object; obtaining a conditional probability density of the object's locating at the plurality of sampling points according to an initial electromagnetic field intensity of the plurality of sampling points and a current electromagnetic field intensity of the object to be located; conducting resampling and updating for the sampling points according to the conditional probability density; and determining a position of the object to be located based on coordinate values of sampling points after the updating. The present invention can improve the accuracy of the locating or tracking on an indoor object.

Abstract: Disclosed are a method system, and device of updating local software. The method comprises: broadcasting a broadcast message for updating local software to multiple client ends; determining whether a response message about existence of the update software is received, updating local software through the client end sending out the response message, or through a remote server if no response message is received. Accordingly, restriction on transmission speed by OTA server in software update process and congestion in data transmission process can be avoided, thus improving downloading speed and facilitate a simultaneous update of software for a mass of devices.

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.