Abstract: A gamma tuning method, apparatus, device, and storage medium and belongs to the field of display technology. The method includes: selecting a plurality of different target dimming values, and correspondingly setting, for each of the target dimming values, a same voltage gamma max power and a same voltage gamma small power; for each of the target dimming values, obtaining a gamma register value for 0 gray scale under the target dimming value according to the voltage gamma max power, the voltage gamma small power, a maximum gamma register value, and a target voltage for 0 gray scale under the target dimming value; and writing the gamma register value for 0 gray scale under the target dimming value into a gamma register of the display panel.

Abstract: The disclosure relates to the technical field of thermal management of a battery charging and swap station, and in particular to a battery charging and swap station, a thermal management system therefor, a control method for a thermal management system, a control device, and a computer-readable storage medium.

Abstract: The disclosure relates to a method and system for detecting a parking state of a vehicle in a battery swap platform, and a battery swap platform including such a system. The method includes the following steps: a) using a panoramic camera apparatus to obtain an image of the battery swap platform, where the vehicle is parked on the battery swap platform; b) inputting the image into a model, where the model is constructed based on a plurality of sets of training data including a sample image and labeling information, and the labeling information depicts whether the vehicle reaches a preset position of the battery swap platform in the sample image; and c) processing the image based on the model to determine whether the vehicle is parked in the preset position of the battery swap platform.

Abstract: The present disclosure discloses a grating spectrometer having a V-shaped projection light path and capable of eliminating coma aberration. The grating spectrometer includes an entrance slit S1, a grating G, an entrance spherical reflector M1, a focusing spherical reflector M2, and an exit slit S2 which are arranged on a light path in sequence in a light transmission direction. The entrance slit S1 and the exit slit S2 are respectively arranged on two sides of the grating G, and a coaxial entrance light path formed by the entrance slit S1 and the entrance spherical reflector M1 and a coaxial diffraction light path formed by the grating G and the focusing spherical reflector M2 form a V-shaped structure by projection in a diffraction plane. The grating spectrometer has actual population and application value.

Abstract: The invention relates to the field of electric vehicles and particularly provides a charging gun. The invention aims to solve the problems that charging guns in different standards have a single function, cannot be reused, and have high research and development and manufacturing costs. To this end, the charging gun of the invention comprises a gun head, a microswitch, and a gun body assembly, wherein the microswitch is disposed on the gun head, the gun body assembly is detachably connected to the gun head, and the gun head is a male gun head or a female gun head. The microswitch is disposed on the gun head, so that the microswitch is separated from the gun body assembly, so as to reuse gun bodies of a charging gun in a Chinese standard and a charging gun in a European standard, that is, the charging gun in the Chinese standard and the charging gun in the European standard can switch between each other only by replacing few components.

Abstract: The present invention discloses a coma-elimination broadband high-resolution spectrograph, comprising incident slits, a collimating mirror, an integrated grating, a two-dimensional focus imaging mirror and a two-dimensional area array detector, wherein the incident slits enters along the incident slits, passes through a light through hole in the center of the integrated grating and is incident to the collimating mirror, the incident light enters the integrated grating along a coaxial optical path L1 after collimation of the collimating mirror and is focused by the two-dimensional focus imaging mirror after diffraction of each sub-grating, diffraction light in full spectrum region enters a focal plane of the two-dimensional area array detector for detection along an coaxial optical path L2, and off-axis angles of the L1 and the L2 are zero.

Abstract: The present invention discloses a multichannel broadband high-resolution spectrograph, comprising a plurality of light source incident slits, a multichannel integrated grating, a multichannel shared two-dimensional focus imaging mirror and a two-dimensional area array detector which are sequentially disposed along a light source incident or reflection line, wherein the multichannel integrated grating consists of a plurality of sub-gratings, incident light enters the corresponding integrated gratings along the light source incident slits and then is focused by the shared two-dimensional focus imaging mirror after diffraction of the integrated grating, and diffraction light in a full-spectrum region is incident onto a focal plane of the two-dimensional area array detector for detection. No any mechanical displacement part is disposed, multichannel, full-spectrum and high-speed detection and analysis is achieved, and the present disclosure has high spectrum resolution and working reliability.

Abstract: The present invention discloses a multichannel broadband high-resolution spectrograph, comprising a plurality of light source incident slits, a multichannel integrated grating, a multichannel shared two-dimensional focus imaging mirror and a two-dimensional area array detector which are sequentially disposed along a light source incident or reflection line, wherein the multichannel integrated grating consists of a plurality of sub-gratings, incident light enters the corresponding integrated gratings along the light source incident slits and then is focused by the shared two-dimensional focus imaging mirror after diffraction of the integrated grating, and diffraction light in a full-spectrum region is incident onto a focal plane of the two-dimensional area array detector for detection. No any mechanical displacement part is disposed, multichannel, full-spectrum and high-speed detection and analysis is achieved, and the present disclosure has high spectrum resolution and working reliability.

Abstract: The present invention discloses a coma-elimination broadband high-resolution spectrograph, comprising incident slits, a collimating mirror, an integrated grating, a two-dimensional focus imaging mirror and a two-dimensional area array detector, wherein the incident slits enters along the incident slits, passes through a light through hole in the center of the integrated grating and is incident to the collimating mirror, the incident light enters the integrated grating along a coaxial optical path L1 after collimation of the collimating mirror and is focused by the two-dimensional focus imaging mirror after diffraction of each sub-grating, diffraction light in full spectrum region enters a focal plane of the two-dimensional area array detector for detection along an coaxial optical path L2, and off-axis angles of the L1 and the L2 are zero.

Abstract: A method of displaying an image performed by a device includes generating a display image with respect to each of a plurality of image groups in the device; selecting one of the plurality of image groups in the device based on a user input; searching for the display image that matches the selected image group; and displaying the found display image, wherein the found display image comprises a preview image that matches each of a plurality of images included in the selected image group.

Abstract: Method of performance model cross-mapping in a refrigeration circuit containing a compressor and an expansion valve, the method comprising: measuring circuit parameter values of the refrigeration circuit, calculating a discharge line temperature with a first performance model as a function of the measured circuit parameter values and comparing the calculated discharge line temperature to a measured discharge line temperature from the refrigeration circuit to obtain a first differential value, calculating a first flow with the first performance model as a function of at least one of the measured circuit parameter values, calculating a second flow through the expansion valve with a second performance model for the expansion valve as a function of at least one of the measured circuit parameter values, comparing the first flow to the second flow to obtain a second differential value and evaluating the first differential value and the second differential value and a corresponding apparatus.

Abstract: A method of displaying an image performed by a device includes generating a display image with respect to each of a plurality of image groups in the device; selecting one of the plurality of image groups in the device based on a user input; searching for the display image that matches the selected image group; and displaying the found display image, wherein the found display image comprises a preview image that matches each of a plurality of images included in the selected image group.

Abstract: A method comprising determining a first temperature of an oil inside a compressor; determining a second temperature at a moveable part of the compressor, wherein the second temperature at the moveable part is determined at a stationary part of the compressor being in contact with the moveable part; and deriving whether the compressor operates in a safe mode or in an unsafe mode based on an analysis of the determined first temperature and the determined second temperature at the moveable part.