Abstract: A method for tracking a terminal device having a cellular modem and a positioning module is disclosed. The method comprises monitoring a location of a terminal device through a cellular network using the cellular modem of the terminal device, while the positioning module of the terminal device is disabled; determining that the terminal device enters a first cell of the cellular network based on signals from the cellular modem; enabling the positioning module of the terminal device in response to the determination that the terminal device enters the first cell; and obtaining from the positioning module a first geographical location of the terminal device in the first cell.

Abstract: A method and apparatus for controlling an unmanned device, a storage medium, and an electronic device are provided. In some embodiments, not only a control policy is determined according to a single frame of a current image, but a safety representation value of an unmanned device at a current moment and safety representation values of the unmanned device at respective historical moments are respectively determined according to a current image and environment images of several historical moments. In those embodiments, a control policy of the unmanned device at a next moment is determined according to a safety representation value of the unmanned device at current moment and the safety representation values of the unmanned device at respective historical moments.

Abstract: The present disclosure discloses a linear motor including a housing with an accommodation space, a vibrator and a stator received in the accommodation space and an elastic support fixed on the vibrator and configured to suspend the vibrator in the accommodation space; the stator includes a coil and a copper ring both opposite to the vibrator; the copper ring and the coil are arranged on two opposite sides of the vibrator separately along a first direction perpendicular with a vibration direction of the vibrator. The copper ring serves as a damper providing electromagnetic resilience for the vibrator, effectively improve the automation and efficiency of the manufacture of the linear vibration motor.

Abstract: The present invention provides a linear vibration motor, including a housing having an accommodating space, a vibrator disposed in the accommodating space, and a coil fixed in the housing and driving the vibrator to move. The vibrator includes a magnetic circuit system. The linear vibration motor further includes a restoring assembly fixed to the housing. The restoring assembly is made of magnetic steel and is magnetized along a direction perpendicular to a direction in which the vibrator moves. Compared with an existing spring structure, in the linear vibration motor of the present disclosure, a magnetic interaction force is formed between a restoring assembly and a vibrator to restore a vibrator. In this way, an anti-humidity and anti-high-temperature effect of the restoring assembly is improved by replacing an interaction force of a spring with a magnetic interaction force.

Abstract: One of the objects of the present disclosure is to provide a linear vibration motor which improves the rigidity of the whole system and ensures enhanced stability. The present disclosure provides a linear vibration motor having a housing body; a stator including at least two solenoid assemblies with parallel axes; a vibrator installed in the housing body; and an elastic connector suspending the vibrator in the housing body. The vibrator includes a first magnet assembly being located between two adjacent at least two solenoid assemblies and including a first magnet and a second magnet. Magnetization directions of the first magnet and the second magnet are opposite and parallel to an axial direction of the solenoid assembly.

Abstract: The present disclosure discloses a lens module. The lens module includes a lens barrel, a lens, and a pressing ring abutted against the lens from an image side. The pressing ring includes an upper surface close to an object side, a lower surface, an inner connecting surface, and an outer connecting surface. The outer connecting surface is abutted against the lens barrel, the upper surface is provided with a boss extending towards the object side. The lens module provided by the present disclosure can ensure the assembly precision of the pressing ring and improve the yield rate of the lens module.

Abstract: One of the objects of the present invention is to provide a vibration motor with reduced size and enables easier manufacturing process. To achieve the above-mentioned object, the present invention provides a vibration motor having a housing with an accommodation space; a vibrator accommodated in the accommodation space; a stator fixed to the housing for driving the vibrator to vibrate; and a spring suspending the vibrator in the accommodation space. The spring includes a first fixed part connecting to the housing, a second fixed part connecting to the vibrator, and an elastic arm connecting the first fixed part to the second fixed part.

Abstract: A method and apparatus for upgrading software in a front-end device connectable to a back-end device through a coaxial cable. The method includes receiving an instruction for a software upgrade, which is inserted into a horizontal blanking region of a video signal, from the back-end device through the coaxial cable, receiving, in sequence, data packets inserted into the horizontal blanking region, from the back-end device through the coaxial cable, the data packets including data for the software upgrade, and upgrading software in the front-end device based on the received data packets. Existing coaxial cables in a video surveillance system are used to transmit the data for the software upgrade, and during data transmission for the software upgrade the normal monitoring function of the video surveillance system is enabled.

Abstract: The present disclosure provides a multi-solenoid linear vibration motor having a housing body with an accommodation space; a stator including N solenoid assemblies, where N is an integer not less than 2; a vibrator including N+1 pieces of axial magnet units; and an elastic connector. Each solenoid assembly locates between two adjacent axial magnet units. A length of the axial magnet unit is greater than a length of the solenoid assembly. A magnetizing direction of the axial magnet unit is perpendicular to the axial direction of the solenoid assembly. A polarity of the magnetic pole on a side of the central area is opposite to a polarity of the magnetic pole. The adjacent axial magnet units are opposite to each other with the same poles facing each other; energization directions of the adjacent solenoid assemblies are opposite. Driving force is accordingly improved.

Abstract: Provided is an optical lens module including a lens barrel, a lens assembly and a press ring, the lens barrel has an object side end surface, the lens assembly includes a first lens and a second lens, the first lens is a plastic lens including an imaging portion and a fixing portion around the imaging portion, the imaging portion extends towards and beyond an object side, the second lens is located in the lens barrel. The press ring includes an inner side surface and an outer side surface, the inner side surface is fixed with the fixing portion, the outer side surface is connected with the lens barrel, the press ring abuts against an object side surface of the second lens. In this optical lens module, head size of the optical lens module is no longer limited by wall thickness of the lens barrel, thereby greatly reducing head size.

Abstract: In embodiments, a reusable and adaptive multi-task orchestration dialogue system orchestrates a set of single-task dialogue systems to provide multi-scenario dialogue processing. In embodiments, for each question propounded by a user, using a deep learning predictive model, a best single-task dialogue system is chosen out of the set. In embodiments, multi-task orchestration is done without the need to change, or even understand, the inner workings or mechanisms of the individual single-task dialogue systems in the set. Moreover, the multi-task orchestration is also unconcerned with what rules are set in each individual single-task dialogue system. In embodiments, prior to selection of the best single-task dialogue system to return the best answer, new intents and entities are discovered and used to update an existing dialogue path. In embodiments, additional data is continually collected, and used to retrain model so as to further improve performance.

Abstract: A horizontally arranged six-degree-of-freedom constant-stiffness mechanism is provided, and includes an upper platform, a bottom plate, three composite spherical hinges, spherical hinges, support rods, guide rail slider assemblies, and six electromagnetic adjustable stiffness units. Two ends of a shaft on which a permanent magnet is fixed in each electromagnetic adjustable stiffness unit are fixed to the bottom plate via shaft supports. Axially moving housings of electromagnetic adjustable stiffness units are fixed on sliders of the guide rail slider assemblies via slider backing plates respectively. Guide rail slider assembles are fixed on the bottom plate. Tops of the housings are mounted with the spherical hinges respectively. A bottom of the upper platform is uniformly mounted with the composite spherical hinges. One end of each support rod is threadedly connected to a corresponding one of the spherical hinges, and another end is connected with a corresponding one of composite spherical hinges.

Abstract: The present invention provides a touch sensor and a method for preparing the same. The touch sensor includes a substrate, an electrode layer located in a window area, and a frame trace located in a frame trace area. The frame trace includes a plurality of metal wires. Each metal wire includes a metal wire body electrically connected to a corresponding electrode in the electrode layer and an insulation layer wrapped around an outer periphery of the metal wire body. In this way, the width of the frame trace area can be further reduced.

Abstract: The present disclosure provides a linear motor having a housing with an accommodation space; a vibrator accommodated in the accommodation space; and a first stator locating opposite to the vibrator and fixed to the housing. The first stator includes a first circuit board opposite to the vibrator, a first coil on a the side of the first circuit board close to the vibrator, and a first magnetic conductive sheet locating on a side of the first circuit board away from the vibrator. The linear motor further has a spring bracket supporting the vibrator in the accommodation space. The present invention is to provide a linear motor which improves the space utilization of the linear motor in a thickness direction.

Abstract: The present invention provides a vibration motor having a housing with an accommodation space; a vibrator; a stator; and an elastic support assembly suspending the vibrator in the accommodation space. The elastic support assembly includes one elastic support between the vibrator and the housing. The elastic support includes a first fixed part, a second fixed part, a first elastic support arm connecting the first fixed part and the second fixed part, and spaced from the vibrator, and a first flange formed by bending and extending from the first elastic support arm. The first flange keeps a distance from the vibrator or the housing. Such a vibration motor has enhanced stiffness.

Abstract: The present invention provides a vibration motor having a housing body with an accommodation space; a vibration member having a weight with an accommodation cavity, a stator accommodated in the accommodation cavity and spaced apart from the weight. The stator includes an iron core, a coil wound around the iron core, a first damping member and a second damping member. The vibration member further includes a first magnet and a second magnet accommodated in the accommodation cavity. Both the first and second magnets being magnetized in a direction perpendicular to the vibration direction. One of the objects of the present invention is to provide a vibration motor with improved stability of the whole system.

Abstract: A linear vibration motor includes a housing with a receiving space, a vibrator received in the receiving space, a coil for driving the vibrator to vibrate, a guide member for guiding movement of the vibrator, and a recover assembly fixed to a side of the vibrator. The vibrator includes a magnetic circuit system with first and second magnets. The recover assembly is closed to the first magnet. A magnetic polarity of an end of the magnetic recovery assembly facing the vibrator is reverse to that of an end of the first magnet away from the second magnet. When the vibrator is in an equilibrium position, a centroid of the vibrator is located between the magnetic recovery assembly and the coil. Magnetic force between the magnetic recovery assembly and the magnetic circuit system provides recovery force for the vibrator, thereby realizing large-stroke vibration.

Abstract: The present invention provides a vibration motor including an installation housing having a through opening; a vibrator; an elastic member suspending the vibrator; a stator; a magnet; a coil; and a flexible circuit board. The flexible circuit board includes a first conduction part, a second conduction part, and a bending part. The vibration motor further comprises a connection bracket having a first connection part connected to the vibrator and a second connection part connected to the elastic member. By virtue of the configuration described in the invention, the assembly accuracy of the vibration motor is ensured.

Abstract: The present invention provides a vibration motor including an installation housing having a through opening; a vibrator; an elastic member suspending the vibrator; a stator; a magnet; a coil; and a flexible circuit board. The flexible circuit board includes a first conduction part, a second conduction part, and a bending part. The flexible circuit board further includes a position limiting part extending from the bending part and accommodated in the installation housing for abutting against a surface of an inner wall of the installation housing adjacent to the through opening. By virtue of the configuration described in the invention, the assembly accuracy of the vibration motor is ensured.

Abstract: The present invention provides a vibration motor having a housing with an accommodation space; a stator having an iron core, a coil, and a yoke; and a vibrator. The vibrator includes a magnetic circuit system having a magnet group, and a pole plate arranged at a side of the magnet group away from the stator. The vibration motor further has an elastic support member supporting the vibrator, and an interval between the stator and the magnet group. The yoke is opposite to the magnet group, and includes a groove formed from a surface opposite to the magnet group away from the magnet group. One of the objects of the present invention is to provide a vibration motor which improves stability of the whole system and reduces negative stiffness.