Abstract: The disclosure provides a method for monitoring a short-term voltage stability of a power system. The method includes: obtaining a topology and time series of a current power system; inputting the topology and the time series of the current power system into a trained spatial-temporal graph network model, the trained spatial-temporal graph network model being obtained by classification learning on a spatial-temporal graph network model based on a simulation sample dataset; outputting a status of the short-term voltage stability of the power system; and sending an alarm signal in response to outputting an unstable status of the short-term voltage stability of the power system.

Abstract: One example discloses a first wireless device, including: a band-steering device including a band-detection element and a band-steering element; wherein the band-detection element is configured to receive a first signal from a second wireless device and detect from the first signal if the second device has multi-band capability; and wherein the band-steering element is configured to respond to the first signal by transmitting a second signal to the second device in a preferred band.

Abstract: Disclosed are an emergency control method and system based on source-load-storage regulation and cutback. According to the method, output power of power generating sources is regulated according to a power regulating quantity and a frequency regulation requirement, an output power compensation and output frequency of each power generating source are maintained within permissible ranges, so that a balance between power supply and demand of a power distribution network is maintained; and standby energy-storage power stations are used to make up a power gap, and an external power supply system is used to assist in making up a power deficiency, so that large load disturbance can be handled make up the power gap.

Abstract: Embodiments of the present disclosure pertain to a computer-implemented method for automated identification of air voids on a surface by receiving a plurality of images of the surface; reconstructing the plurality of images into at least one three-dimensional representation of the surface; and feeding the reconstructed three-dimensional representation of the surface into an algorithm specifically trained for air void identification. Further embodiments of the present disclosure pertain to a computing device for automated identification of air voids on a surface in accordance with the method of the present disclosure. Additional embodiments of the present disclosure pertain to a system for automated identification of air voids on a surface.

Abstract: One example discloses a first wireless device, including: a band-steering device including a band-detection element and a band-steering element; wherein the band-detection element is configured to receive a first signal from a second wireless device and detect from the first signal if the second device has multi-band capability; and wherein the band-steering element is configured to respond to the first signal by transmitting a second signal to the second device in a preferred band.

Abstract: A housing assembly for video game controller includes a body. The body includes an upper body and a lower body, the lower body, and two holding portions. The lower body is assembled with the upper body and anti-slip sleeves are sleeved on the holding portions. The anti-slip sleeves are detachably connected to the holding portions, and the anti-slip sleeves are smoothly connected to the body. The housing assembly for video game controller is not easy to slip off from hands of users and improves comfortable sensation of the users.

Abstract: A wireless network interface generates a beacon frame, and transmits the beacon frame outside of a wireless local area network (WLAN) served by an access point (AP). Additionally or alternatively, the wireless network interface receives a first probe request frame from a client station in the WLAN, and in response, generates and transmits a probe response frame outside of the WLAN. The wireless network interface receives one or more frames from the client station of the WLAN, the one or more frames having been transmitted outside of the WLAN. Network security information corresponding to the WLAN is extracted from the one or more frames, and the wireless network interface uses the network security information to wirelessly connect to the AP as part of the WLAN.

Abstract: A colorful light apparatus controlled by input edge signals from a power supply line includes a plurality of LED group, an edge signal generator configured to generate edge signals and output edge signals to the power supply line, and LED drivers configured to drive LED groups based on the edge signals from the power supply line corresponding to each LED group. The edge signal is generated by the controllable switch switching between on and off based on output signals of a control circuit, and is carried to the power supply line. The LED modules are configured to be driven to obtain a plurality of lighting modes, wherein each LED module and its drivers can be connected to the power supply line directly. The structures of the circuits are simple and of low cost. Moreover, various effects of decorations can be achieved by programming using a Microprocessor Control Unit (MCU).

Abstract: In an example, a method includes determining, at a host device, a power state of a digital input/output device, and transmitting a clock signal having a first frequency from the host device to the input/output device responsive to a determination that the input/output device is in a lower power state. The method also includes determining, at the host device, that the input/output device has transitioned into a higher power state, and transmitting a clock signal having a second frequency from the host device to the input/output device responsive to a determination that the input/output device has transitioned into the higher power state. The first frequency is lower than the second frequency.

Abstract: A colorful light apparatus controlled by input edge signals from a power supply line includes a plurality of LED group, an edge signal generator configured to generate edge signals and output edge signals to the power supply line, and LED drivers configured to drive LED groups based on the edge signals from the power supply line corresponding to each LED group. The edge signal is generated by the controllable switch switching between on and off based on output signals of a control circuit, and is carried to the power supply line. The LED modules are configured to be driven to obtain a plurality of lighting modes, wherein each LED module and its drivers can be connected to the power supply line directly. The structures of the circuits are simple and of low cost. Moreover, various effects of decorations can be achieved by programming using a Microprocessor Control Unit (MCU).

Abstract: A computing apparatus triggered by input signal edges from a power supply line includes an edge-triggered computing device, a charging device, and an initialization device. The edge-triggered computing device is triggered to compute by the input signal edges from power supply line, and is used to output computing results; the charging device is configured to supply power to the edge-triggered computing device based on the input signals from the power supply line; the initialization device is configured to initialize the edge-triggered computing device based on the voltage of the power supplied by the charging device. An LED driver includes the computing apparatus is to configured to control a driving device according to the computing results, thereby achieving display of light from LEDs using the power supply line and ground line without extra control signal line, and facilitating on-chip implementation of LED driving circuits.

Abstract: A computing apparatus triggered by input signal edges from a power supply line includes an edge-triggered computing device, a charging device, and an initialization device. The edge-triggered computing device is triggered to compute by the input signal edges from power supply line, and is used to output computing results; the charging device is configured to supply power to the edge-triggered computing device based on the input signals from the power supply line; the initialization device is configured to initialize the edge-triggered computing device based on the voltage of the power supplied by the charging device. An LED driver includes the computing apparatus is to configured to control a driving device according to the computing results, thereby achieving display of light from LEDs using the power supply line and ground line without extra control signal line, and facilitating on-chip implementation of LED driving circuits.

Abstract: A filter expression is received at a wireless device assembly of a communication device. While a host assembly of the communication device is in a sleep mode, the wireless device assembly receives a signal having packet data, and determines whether the packet data contains a data pattern indicated by the filter expression. If the packet data contains the data pattern, the wireless device assembly communicates a wakeup signal to the host assembly for changing the host assembly from the sleep mode to an active mode. If the packet data does not contain the data pattern, the wireless device assembly does not communicate the wakeup signal to the host assembly.

Abstract: In accordance with the invention, a method, system and apparatus for saving power consumed by a station in an ad hoc wireless network are presented. The method comprises transmitting or receiving a signal by a station in the ad hoc wireless network during a beacon interval. The station enters a power saving doze state immediately following the transmission or reception of the signal and prior to the end of the beacon interval. Additionally or alternatively, the station may enter power saving doze state following a timed period, according to a counter, or according to a periodic pattern.

Abstract: In an example, a method includes determining, at a host device, a power state of a digital input/output device, and transmitting a clock signal having a first frequency from the host device to the input/output device responsive to a determination that the input/output device is in a lower power state. The method also includes determining, at the host device, that the input/output device has transitioned into a higher power state, and transmitting a clock signal having a second frequency from the host device to the input/output device responsive to a determination that the input/output device has transitioned into the higher power state. The first frequency is lower than the second frequency.