Abstract: The present invention provides a speaker having a vibrating system and a magnetic circuit system for driving the vibrating system to vibrate and sound. The magnetic circuit system has magnetic gap. The vibrating system includes vibrating assembly and voice coil assembly connected to the vibrating assembly, the voice coil assembly is inserted into the magnetic gap. The magnetic circuit system has a magnetic line concentrating area in the magnetic gap. The voice coil assembly includes a first voice coil connected to the vibrating assembly and a second voice coil arranged on the first voice coil at a side away from the vibrating assembly. if in the magnetic line concentrating area locates only the first voice coil, an electric signal is input only to the first voice coil; if in the magnetic line concentrating area locates only the second voice coil, electric signal is input only to the second voice coil.

Abstract: The present invention provides a speaker having a vibrating system and a magnetic circuit system for driving the vibrating system to vibrate and sound. The magnetic circuit system has magnetic gap. The vibrating system includes vibrating assembly and voice coil assembly connected to the vibrating assembly, the voice coil assembly is inserted into the magnetic gap. The magnetic circuit system has a magnetic line concentrating area in the magnetic gap. The voice coil assembly includes a first voice coil connected to the vibrating assembly and a second voice coil arranged on the first voice coil at a side away from the vibrating assembly. if in the magnetic line concentrating area locates only the first voice coil, an electric signal is input only to the first voice coil; if in the magnetic line concentrating area locates only the second voice coil, electric signal is input only to the second voice coil.

Abstract: A vibration motor includes a housing, a vibrator and a stator received in the housing. The vibrator includes a magnetic circuit unit for vibration. The stator includes a coil configured to drive the magnetic circuit unit to vibrate. The coil has a winding plane perpendicular to a vibration direction of the vibrator. The magnetic circuit unit includes first and second magnet groups provided on opposites sides of the coil. The first magnet group and the second magnet group each include a plurality of magnets arranged along the vibration direction and magnetized in a direction perpendicular to the vibration direction, such that two adjacent magnets in the vibration direction have opposite magnetization directions, and the magnets oppositely arranged in the first and second magnet groups have opposite magnetization directions. The vibrator according to the present disclosure has a large driving force and a quick response during vibration.

Abstract: The present disclosure provides a motor, including a housing having an accommodating space, a vibrator and a stator that are accommodated in the accommodating space. One of the vibrator and the stator includes a magnetic circuit structure, and the other includes a coil assembly. The coil assembly includes an iron core and a first drive coil and a second drive coil that separately sleeved on two ends of the iron core in a vibration direction of the vibrator, a powering direction of the first drive coil being opposite to a powering direction of the second drive coil. In the present disclosure, the first drive coil and the second drive coil are subjected to Lorentz force in the same direction, thereby vibration of the motor may be improved.

Abstract: The present application discloses a linear motor, which includes a housing having a receiving cavity, a vibrator received in the receiving cavity, a stator received in the receiving cavity, and a flexible support connecting to the housing and suspending the vibrator in the receiving cavity. The stator includes an iron core fixed to the housing and a coil winded on the iron core. The iron core includes a first iron core and a second iron core perpendicular to the first iron core, the coil includes a first coil winded on the first iron core and a second coil winded on the second iron core, and the winding directions of the first coil and the second coil are perpendicular to each other. The linear motor of the present invention not only effectively widens the working frequency band of the motor, but also enriches the vibration effect of the motor.

Abstract: A method and a system for the off site monitoring/diagnostics, command/control, alarm/event management, historical/trend analysis, and configuration/administration of building automation systems through an event manager for use in a facilities monitoring system having network-level and protocol-neutral communication with a physical device. The method includes managing a non internet protocol-based physical device, including coupling a device gateway with the physical device, wherein the device gateway is configured to expose the physical device as a networked device on a server. The method also includes receiving event information from the coupled physical device, wherein the event information includes an event and a device identifier; responsive to a determination that the event information includes an actionable event, processing the event, the device identifier, and the actionable event to determine a responsible process; and notifying the responsible process of the event.