Abstract: A vehicle security device includes a control module, a detection module, a communication module, and an alarm module. The control module is installed in a vehicle. The detection module is configured to detect at least one safety abnormal event of the vehicle. The communication module is configured to optionally output or receive at least one collaborative alarm activation signal. The alarm module is configured to output a warning alarm. When the detection module detects out the safety abnormal event, the control module generates at least one abnormal alarm activation signal and the collaborative alarm activation signal, the alarm module outputs the warning alarm according to the abnormal alarm activation signal, and the communication module outputs the collaborative alarm activation signal. When the communication module receives the collaborative alarm activation signal, the alarm module outputs the warning alarm according to the collaborative alarm activation signal.

Abstract: A diaphragm pump is revealed. The diaphragm pump includes a pump device, a pump body, a top cover, and an air release valve head. The pump body includes at least two air inlet passages, at least one air outlet passage and at least one leak-proof/sealing passage, all selectively communicating with one cavity. The top cover includes a valve port, an air vent and an air outlet duct. Air pressure in the leak-proof passage acts on the air release valve head so that the valve port is closed by the air release valve head while the pump device is pumping air. The air release valve head and the valve port are separated from each other and then the valve port is communicating with the air outlet duct when the pump device stops pumping air. The pump performance is improved and no air release valve is required.

Abstract: A diaphragm pump is revealed. The diaphragm pump includes a pump device, a pump body, a top cover, and an air release valve head. The pump body includes at least two air inlet passages, at least one air outlet passage and at least one leak-proof/sealing passage, all selectively communicating with one cavity. The top cover includes a valve port, an air vent and an air outlet duct. Air pressure in the leak-proof passage acts on the air release valve head so that the valve port is closed by the air release valve head while the pump device is pumping air. The air release valve head and the valve port are separated from each other and then the valve port is communicating with the air outlet duct when the pump device stops pumping air. The pump performance is improved and no air release valve is required.

Abstract: The disclosure relates to an audio signal processing method, device, and computer-readable medium. The method is applied to an electronic equipment that includes multiple audio acquisition devices with distances between the multiple audio acquisition devices meeting a preset distance condition.

Abstract: The disclosure relates to an audio signal processing method, device, and computer-readable medium. The method is applied to an electronic equipment that includes multiple audio acquisition devices with distances between the multiple audio acquisition devices meeting a preset distance condition.

Abstract: The present invention provides a dual-band inverted-F antenna configured for portable electronic devices having wireless communication function. The antenna includes a first planar conductive element and a second planar conductive element. The first planar conductive element, with an L-shaped design, has a feed point for transmitting received signals to the portable electronic devices. The second planar conductive element, a rectangular board, is orthogonal to the first planar conductive element and is connected to the first planar conductive element at a node. The node formally separates the second planar conductive element into two parts to receive two different frequency signals respectively.

Abstract: The present invention provides a dual-band inverted-F antenna configured for portable electronic devices having wireless communication function. The antenna includes a first planar conductive element and a second planar conductive element. The first planar conductive element, with an L-shaped design, has a feed point for transmitting received signals to the portable electronic devices. The second planar conductive element, a rectangular board, is orthogonal to the first planar conductive element and is connected to the first planar conductive element at a node. The node formally separates the second planar conductive element into two parts to receive two different frequency signals respectively.