Abstract: A time-division multiplexed projection display is pixel shifted to produce an increased perceived display resolution or to mitigate image defects, such as defects in a display, a waveguide, or a prism, in an augmented, mixed, or virtual reality device. A polarizing beam splitter (PBS) divides input unpolarized display light into two orthogonal linear polarizations and directs them to two PBS arms. The PBS arms act to shift the light in synchronization with the time-multiplexed display such that a single pixel of the light engine providing the display light is converted into two or four virtual pixels, effectively increasing the perceived display resolution relative to the native resolution of the light engine. The PBS combines the light from both PBS arms into a single, unpolarized output that may then be projected into a lens or a waveguide incoupler to enable the light to propagate through a waveguide for display.

Abstract: Disclosed is a total reflection based compact near-eye display device with a large field of view. Light rays emitted by an image source (103) are transmitted by using a total reflection prism (101), and are finally subjected to image magnification by means of a near-eye refractive component (105), such that a near-eye display effect with a large field of view is achieved under the conditions of a compact volume.

Abstract: Disclosed is a total reflection based compact near-eye display device with a large field of view. Light rays emitted by an image source (103) are transmitted by using a total reflection prism (101), and are finally subjected to image magnification by means of a near-eye refractive component (105), such that a near-eye display effect with a large field of view is achieved under the conditions of a compact volume.

Abstract: Disclosed is a total reflection based compact near-eye display device with a large field of view. Light rays emitted by an image source (103) are transmitted by using a total reflection prism (101), and are finally subjected to image magnification by means of a near-eye refractive component (105), such that a near-eye display effect with a large field of view is achieved under the conditions of a compact volume.

Abstract: Disclosed is a thin near-to-eye display device with a large field of view angle. Two or more radial reflection units are adopted to be arranged in front of human eyes, and a large-area image is projected and formed on the retina of the human eyes, so that a near-to-eye display effect of the large field of view angle is achieved in a thin volume.

Abstract: The present invention discloses a thin type large field of view near-eye display device, which comprises two or more radial reflection units, which are arranged in front of human eyes to generate two or more sub-images and spliced into a larger image on the retina of human eyes, so as to realize a near-eye display effect with a large field of view in a thinner volume; the radial reflection units comprise a light source, a reflecting surface, a transmissive dioptric apparatus and/or a reflective optical component, and the present invention relates to the technical field of near-eye display devices. The thin type large field of view near-eye display device realizes the nesting of images with various definitions by adopting different areas of the same screen, and is widely used as a low-cost display solution to improve the definition of the central area.

Abstract: A file encryption and transmission method and apparatus are provided. The method includes: acquiring a set of files to be transmitted; generating, for file information of each file in the set of files to be transmitted, a key string by using a first preset algorithm; compressing and encrypting, by using the key string, the set of files to be transmitted to obtain an encrypted file; encrypting the key string by using a prefabricated encryption machine to generate an encrypted string; transmitting, through a network, the encrypted file, the encrypted string and an information file to a destination end; and executing, by the destination end, a decryption operation based on the encrypted string and the encrypted file to acquire a decrypted file, and performing integrity check on the decrypted file based on the file information.

Abstract: The present disclosure provides a metamaterial absorber integrated long-wave infrared focal plane array (LWIRFPA), including: a resonator layer, a dielectric layer, and a metal layer. The resonator layer is of a sub-wavelength periodic resonator array structure, generates surface plasmon resonance (SPR), and is made of a metal or metalloid material. The SPR refers to propagating surface plasmon resonance (PSPR) or localized surface plasmon resonance (LSPR). By using corresponding shape and structural size of a resonator, the present disclosure achieves broadband absorption, narrow-band absorption, multi-wavelength absorption, polarization-selective absorption, etc. By integrating the metamaterial absorber on the IRFPA, not only can the absorptivity be improved, but also more functions can be achieved by the IRFPA.

Abstract: Provided is a determination method of differential protection suitable for an electricity transmission line with multi-terminal T-connection.

Abstract: The disclosure relates to a fault-tolerant method and apparatus for a network device system, a computer device, and a storage medium. The method includes: when the link state changes, the source switch acquires and transmits link state change information to the master controller, randomly selects a switch from the first switch unit or the second switch unit, and transmits a copy of the link state change information to the selected switch; such that the master controller forwards the link state change information to the second switch unit, the auxiliary controller receives the copy of the link state change information transmitted by the switch selected by the source switch and transmits it to the second switch unit; after the second switch unit updates the local routing table according to the acquired information, the master controller transmits confirmation information to the source switch.

Abstract: A vehicle includes a vehicle frame, a vehicle bumper and a load transfer assembly. The vehicle bumper is coupled to a front end of the vehicle frame and includes a center beam and a bumper beam extension that extends laterally from an end of the center beam. The load transfer assembly includes first and second pivot pins and a load beam. The first pivot pin is fixed to the bumper beam extension and the second pivot pin is fixed to the vehicle frame. The load beam has a first end pivotably coupled to the first pivot pin and a second end pivotably coupled to the second pivot pin. The load beam is configured to load the vehicle frame in a lateral direction upon a vehicle impact event.

Abstract: The present invention discloses a thin type large field of view near-eye display device, which comprises two or more radial reflection units, which are arranged in front of human eyes to generate two or more sub-images and spliced into a larger image on the retina of human eyes, so as to realize a near-eye display effect with a large field of view in a thinner volume; the radial reflection units comprise a light source, a reflecting surface, a transmissive dioptric apparatus and/or a reflective optical component, and the present invention relates to the technical field of near-eye display devices. The thin type large field of view near-eye display device realizes the nesting of images with various definitions by adopting different areas of the same screen, and is widely used as a low-cost display solution to improve the definition of the central area.

Abstract: A method for generating an AI-based building energy model for a client building, comprising: generating an energy profile database by: defining a set of building parameters; generating energy profiles by simulating a set of physical building models; and, populating the energy profile database with the energy profiles; determining an energy profile for the client building by: splitting the energy profile database into groups and clustering each group into a set of clusters; selecting a cluster; and, selecting the energy profile in the cluster that is a closest match to that of the client building; selecting a physical building model from a building model database that corresponds to the energy profile; calibrating the physical building model to generate an adjusted building model; and, generating a set of training datasets from the adjusted building model and inputting the set of training datasets into an AI module to generate the AI-based model.

Abstract: Disclosed is a thin near-to-eye display device with a large field of view angle. Two or more radial reflection units are adopted to be arranged in front of human eyes, and a large-area image is projected and formed on the retina of the human eyes, so that a near-to-eye display effect of the large field of view angle is achieved in a thin volume.

Abstract: Disclosed is a total reflection based compact near-eye display device with a large field of view. Light rays emitted by an image source (103) are transmitted by using a total reflection prism (101), and are finally subjected to image magnification by means of a near-eye dioptric component (105), such that a near-eye display effect with a large field of view is achieved under the conditions of a compact volume. A gap layer exists between the near-eye dioptric component and the total reflection prism, and the gap layer contains substances with a refractive index lower than that of the total reflection prism.

Abstract: Provided is a determination method of differential protection suitable for an electricity transmission line with multi-terminal T-connection.

Abstract: Disclosed is a total reflection based compact near-eye display device with a large field of view. Light rays emitted by an image source (103) are transmitted by using a total reflection prism (101), and are finally subjected to image magnification by means of a near-eye refractive component (105), such that a near-eye display effect with a large field of view is achieved under the conditions of a compact volume.

Abstract: An electrical connector and a method of manufacturing the same are provided. A connecting member is embedded in an insulating body between a side edge of the insulating body and an outer side of a first terminal or a last terminal in a first terminal group, and a gap exists between the connecting member and the first terminal or the last terminal. In other words, the connecting member is not in contact with the first terminal or the last terminal adjacent to the connecting member. Thus, the width of the first terminal or the last terminal is not increased, ensuring the high-frequency transmission rate of the first terminal group, and thereby forming an electrical connector which is capable of facilitating machining without affecting the transmission quality of the terminals, and having a stable structure and high-frequency transmission performance.

Abstract: A method for controlling an operating condition of an electric power grid having an intermittent power supply coupled thereto, comprising: using an energy variability controller, controlling variability of a delivered power output of the intermittent power supply to the grid by: monitoring an actual environmental value for a location proximate the intermittent power supply, an available power output of the intermittent power supply being dependent on the actual environmental value; when the actual environmental value is increasing and hence the available power output is increasing, increasing the delivered power output according to a predetermined rate of increase; monitoring a forecast environmental value for the location; when the forecast environmental value is decreasing, decreasing the delivered power output according to a predetermined rate of decrease; and, limiting the delivered power output to below a predetermined threshold. The electric power grid may be or may include an electric power microgrid.

Abstract: An electrical connector and a method of manufacturing the same are provided. A connecting member is embedded in an insulating body between a side edge of the insulating body and an outer side of a first terminal or a last terminal in a first terminal group, and a gap exists between the connecting member and the first terminal or the last terminal. In other words, the connecting member is not in contact with the first terminal or the last terminal adjacent to the connecting member. Thus, the width of the first terminal or the last terminal is not increased, ensuring the high-frequency transmission rate of the first terminal group, and thereby forming an electrical connector which is capable of facilitating machining without affecting the transmission quality of the terminals, and having a stable structure and high-frequency transmission performance.