摘要:
A surveillance method monitors a monitored area using a monitoring station. The monitoring station in electronic communication with an actuator, an image capture device, and a plurality of motion sensors. The presence of motion in the monitored area is detected in real-time using the motion sensors. When the motion is detected, a target region in the monitored area where the motion is detected is determined, and a control signal is sent to the actuator according to the target region to control the image capture device to aim at the target region using the actuator. Real-time images of the target region are captured, and stored in a storage system of the monitoring station.
摘要:
A notebook computer includes a display device, a main body, a pivoting component, and a foldable device. The display device includes a connection end. The pivoting component is pivoted to the connection end. The foldable device includes two arm components, each arm component includes a first supporting pole and a second supporting pole. Each first supporting is rotatably connected to the main body. Each second supporting pole is rotatably connected between the pivoting component and the first supporting pole.
摘要:
An electronic device includes an enclosure. The enclosure includes a motherboard area and a power supply area adjacent to the motherboard area, which are both located at a first end of the enclosure, a hard disk drive area for mounting hard disk drives at a second end of the enclosure, and a fan area arranged between the motherboard area and the hard disk drive area.
摘要:
A power supply system for memory modules includes a control unit and a voltage regulator. The control unit includes a basic input/output system (BIOS) and a control chip connected to the BIOS. The BIOS controls the control chip to output a control signal according to the number of the memory modules mounted in memory slots. The voltage regulator is connected to the control chip through first and second general purpose input/output (GPIO) buses. The voltage regulator receives the control signal from the control chip through the first and second GPIO buses and regulates power supply modes, to output different phase voltages to the memory modules mounted in the memory slots.
摘要:
A printed circuit board used in server, which has a golden finger interface at one side thereof. The golden finger interface includes a plurality of parallelly arranged metal sheets which conform to the USB standard. The golden finger interface is used to be engaged with a USB socket for transmitting the electrical signal.
摘要:
A fan control system includes a fan and a fan control circuit. The fan control circuit includes a connector, a control unit, a switch unit, and a delay unit. The control unit is connected to the connector to receive a rotation speed control signal, and connected to the fan. The switch unit is connected to the connector to receive a voltage signal, and connected to the control unit. The delay unit is connected to the connector to receive the rotation speed control signal, and connected to the switch unit. When the delay unit receives the rotation speed control signal, the delay unit outputs a control signal to turn on the switch unit after a time delay, the voltage is transmitted to the control unit through the switch unit, the fan operates, the control unit controls rotation speed of the fan according to the rotation speed control signal.
摘要:
A method for testing rotation speed of a fan receives a duty cycle ratio related to the fan sent from a dial switch on a test board connected to the fan. The method transmits a pulse width modulation (PWM) signal based on the duty cycle to the fan to power rotation of the fan, then detects the PWM signal transmitted to the fan and a tachometer (TACH) signal transmitted from the fan. The method gathers the duty cycle ratio related to the fan from the PWM signal and an actual rotation speed of the fan from the TACH signal, and displays the duty cycle ratio and the actual rotation speed together on the test board.
摘要:
A motherboard assembly includes a motherboard with a memory slot, an adapter board, and a serial advanced technology attachment dual-in-line memory module (SATA DIMM) with a circuit board and a connector. An edge connector is set on a bottom edge of the circuit board. The adapter board includes a SATA interface, a hard disk drive (HDD) signal multiplier, a power interface, and an expansion SATA interface. The edge connector is connected to the memory slot and the connector is connected to the expansion SATA interface, to enable the motherboard communication with SATA DIMM modules, which are connected to the memory slots.
摘要:
A bridging board configured for connecting a processor with a hard disk backboard includes a first signal connecting apparatus, a second signal connecting apparatus, a plurality of duplexer and a signal conditioner. The first signal connecting apparatus is electronically connected to the processor. The second signal connecting apparatus electronically connected to the hard disk backboard. Each duplexer has an input terminal electronically connected to the first signal connecting apparatus, and two output terminals electronically connected to the second signal connecting apparatus to allow the processor to communicate with the backboard via the bridging board. The signal conditioner is electronically connected between the first signal connecting apparatus and the second signal connecting apparatus to amplify signals transmitted from the processor to the hard disk backboard.
摘要:
A server includes a number of first and second network cards, a buffer, a restart circuit, an AND gate, and a south bridge. Each of the first network cards includes a first signal pin to transmit a wake-up signal and a restart signal. Each of the second network cards includes a second signal pin to transmit a wake-up signal. The restart circuit is connected to each of the first signal pins through the buffer to receive the restart signal, and reboots the server according to the restart signal. The south bridge is connected to each of the first and second signal pins through the AND gate to receive the wake-up signal, and wakes up the server according to the wake-up signal.