Abstract: An approach to optimizing heating, ventilation, and air conditioning (HVAC) temperature setpoints in multi-zone buildings uses a graph-based reinforcement learning framework enhanced with transfer learning. A thermal interaction graph is constructed from spatially distributed building zones, where nodes represent individual rooms or spaces and edges represent thermal or physical relationships. Environmental and operational data, including occupancy, temperature, and weather conditions, are encoded into the graph and processed by a graph neural network to generate a dynamic thermal state representation. A reinforcement learning agent is trained using this representation to learn control policies that adjust HVAC setpoints in real time to minimize energy consumption while maintaining occupant comfort.

Abstract: Systems and methods for generating a load model having composite load components for electric power systems are disclosed which include acquiring state information at a bus of the electric power system, acquiring a training event record, and generating the load model by sequentially executing steps of determining a final load component composition for a predetermined composite load model structure referencing to both the state information and the training event record, and determining a plurality of final load parameters corresponding to the final load component composition and the predetermined load model structure also referencing to both the state information and the training event record.

Abstract: Systems and methods for generating a load model having composite load components for electric power systems are disclosed which include acquiring state information at a bus of the electric power system, acquiring a training event record, and generating the load model by sequentially executing steps of determining a final load component composition for a predetermined composite load model structure referencing to both the state information and the training event record, and determining a plurality of final load parameters corresponding to the final load component composition and the predetermined load model structure also referencing to both the state information and the training event record.

Abstract: A wireless data card and an electronic device, which relate to wireless communication equipment, are adapted to solve the technical problem that the exposed size of an antenna of a built-in wireless data card used in an existing electronic device is too small to achieve a desired performance of receiving radio signals for the antenna. The wireless data card includes a data card body and an antenna electrically connected to the data card body. An elastic structure capable of enabling the antenna to extend out of the data card body and also retract into the data card body is disposed between the data card body and the antenna. The electronic device includes a device case provided with a device port and the wireless data card disclosed above in this disclosure, in which the wireless data card is disposed in the device case and relative to the device port, and the antenna is disposed relative to the device port. This disclosure is applied for transmitting wireless data communication signals.

Abstract: An electronic device with a USB connector is provided, which is designed for solving a problem in the conventional art that a USB cap on an electronic device may easily get lost. The electronic device with the USB connector includes an outer housing, an intermediate housing located inside the outer housing and moveable relative to the outer housing, and a circuit board located inside the intermediate housing. The USB connector is disposed on the intermediate housing, and electrically connected to the circuit board. A USB connector through hole is configured on the outer housing at a position corresponding to the USB connector. The electronic device further includes an elastic apparatus disposed in a moving direction of the intermediate housing, and an intermediate housing movement positioning apparatus. The technology is applicable to electronic devices with a USB connector such as a wireless USB Modem or a USB flash drive.

Abstract: An electronic device with a USB connector is provided, which is designed for solving a problem in the conventional art that a USB cap on an electronic device may easily get lost. The electronic device with the USB connector includes an outer housing, an intermediate housing located inside the outer housing and moveable relative to the outer housing, and a circuit board located inside the intermediate housing. The USB connector is disposed on the intermediate housing, and electrically connected to the circuit board. A USB connector through hole is configured on the outer housing at a position corresponding to the USB connector. The electronic device further includes an elastic apparatus disposed in a moving direction of the intermediate housing, and an intermediate housing movement positioning apparatus. The technology is applicable to electronic devices with a USB connector such as a wireless USB Modem or a USB flash drive.

Abstract: A wireless data card and an electronic device, which relate to wireless communication equipment, are adapted to solve the technical problem that the exposed size of an antenna of a built-in wireless data card used in an existing electronic device is too small to achieve a desired performance of receiving radio signals for the antenna. The wireless data card includes a data card body and an antenna electrically connected to the data card body. An elastic structure capable of enabling the antenna to extend out of the data card body and also retract into the data card body is disposed between the data card body and the antenna. The electronic device includes a device case provided with a device port and the wireless data card disclosed above in this disclosure, in which the wireless data card is disposed in the device case and relative to the device port, and the antenna is disposed relative to the device port. This disclosure is applied for transmitting wireless data communication signals.

Abstract: A plumb bob with adjustable weights for suiting different applications is disclosed that includes, in one embodiment, a bottom point; a shank extended upward from the point and having a lower portion and an upper threaded section; hollow first weight elements adapted to put on the lower portion of the shank and rested upon the point; hollow second weight elements having an axial threaded hole and being adapted to put on a portion of the threaded section of the shank to threadedly secure thereto with the first weight elements being fastened thereunder; a hollow projecting knob including an axial bore having lower threads and a top shoulder; and a string including a bottom knot engaged with and stopped at the shoulder. The knob is adapted to threadedly secure to the remaining portion of the threaded section of the shank.

Abstract: A spiral propeller provides a better secure and a more reliable spiral comprising spiral-lifting wheels, interlocking wheel interlocked with the spiral-lifting wheel, and fixed track supporting the interlocking wheel; the spiral lifting wheel is a rotating wheel with spiral external teeth, which is fixed at the top of the compartment, so as to drive the compartment for upward and downward movements, and interlock with the interlocking wheel; a interlocking rotating wheel of truncated cone shape, which can rotate along the axial direction of the wheel itself; a fixing track is set up between the guide brackets of the elevator, i.e., between the vertical supporting brackets of the guide bracket, in the appropriate locations are set with interlocking wheels.

Abstract: A spiral propeller provides a better secure and a more reliable spiral comprising spiral-lifting wheels, interlocking wheel interlocked with the spiral-lifting wheel, and fixed track supporting the interlocking wheel; the spiral lifting wheel is a rotating wheel with spiral external teeth, which is fixed at the top of the compartment, so as to drive the compartment for upward and downward movements, and interlock with the interlocking wheel; a interlocking rotating wheel of truncated cone shape, which can rotate along the axial direction of the wheel itself; a fixing track is set up between the guide brackets of the elevator, i.e., between the vertical supporting brackets of the guide bracket, in the appropriate locations are set with interlocking wheels.