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77results about How to "Increased realism" patented technology

Contingency plan co-simulation method for chemical laboratory hazardous material management and systems thereof

The invention provides a contingency plan co-simulation method for chemical laboratory hazardous material management and systems thereof. The method comprises the following steps of establishing a scene model of a virtual chemical laboratory hazardous material, a virtual laboratory emergency equipment model, a virtual accident model and a plurality of pre-arranged planning exercise member sub-systems; simulating an accident site according to the scene model of the virtual chemical laboratory hazardous material and the virtual accident model; corresponding pre-arranged planning exercise member sub-systems are connected, virtual laboratory emergency equipment model and contingency plans are correspondingly selected according to a user instruction, and collaborating the pre-arranged planning exercise member sub-systems to conduct accident handling simulation. The contingency plan co-simulation method and the systems of the method can conduct contingency plan simulation on chemical laboratory hazardous material management in the power industry, can virtualize various emergencies possibly happening in a laboratory and can virtualize large scale personnel collaboration pre-arranged planning exercise simulation of different granularities and polymerization degrees.
Owner:GUANGZHOU POWER SUPPLY CO LTD

Dynamic stress accelerated life test profile compilation method

The invention relates to a dynamic stress accelerated life test profile compilation method. The method comprises the following steps that 1, on the basis of a damage equivalent principle, dynamic stress is converted into static stress within a certain time interval; 2, on the basis of the step 1, an equivalent relation of a dynamic stress accelerated factor and a static stress accelerated factor is obtained; 3, the dynamic temperature stress is adopted as the dynamic stress, and on the basis of an Arrhenius model, dynamic temperature accelerated stress accelerated factor computational formulais obtained; 4, the dynamic temperature accelerated stress profile is compiled, and three parameters including a dynamic temperature accelerated stress mean value Tm*, a dynamic temperature accelerated stress amplitude Ta* and a dynamic temperature accelerated stress cycle period w* are determined. According to the method, the dynamic stress accelerated life test profile can be designed accordingto the dynamic change environment actually adopted by products, the reality degree simulated by the environment conditions in the accelerated test is improved, and it is ensured that the product failure mechanism in the test is consistent to that under the actual service condition.
Owner:BEIJING INST OF STRUCTURE & ENVIRONMENT ENG +1

High-gamut fluorescent powder combination, white-light LED and fabrication method of white-light LED

The invention relates to the technical field of backlight of a white-light LED, in particular to a high-gamut fluorescent powder combination. The fluorescent powder combination comprises red-light fluorescent powder, green-light fluorescent powder and yellow-light fluorescent powder in mass ratio of (1-4):(0.5-2):(0.5-2), wherein the red-light fluorescent powder is potassium fluorogermanate, and the yellow-light fluorescent powder is silicate. The invention also provides the white-light LED. The white-light LED comprises fluorescent glue obtained by combining the above fluorescent powder. The invention further comprises a fabrication method of the white-light LED. The fabrication method comprises the following steps of weighing the above red-light fluorescent powder, the green-light fluorescent powder and the yellow-light fluorescent powder in mass ratio of (1-4):(0.5-2):(0.5-2), mixing the above fluorescent powder with a colloid to obtain the fluorescent glue, and further fabricating to obtain the required white-light LED by adopting the fluorescent glue. By the high-gamut fluorescent powder combination and the fabrication method of the white-light LED, a high-gamut white-light LED can be obtained, has the advantages of relatively high color saturation and is more realistic.
Owner:SHENZHEN LT OPTOELECTRONICS CO LTD

Three-dimensional imaging equipment

The invention provides three-dimensional imaging equipment, which is used for respectively displaying a plurality of two-dimensional layers formed by cutting of a three-dimensional scene to form a plurality of two-dimensional pictures, and enabling images of the two-dimensional pictures to be combined into images of the three-dimensional scene. The equipment comprises a display device and a light polarizing device. The equipment is characterized in that: the light polarizing device comprises a plurality of square flat semi-reflective semi-transparent optical devices with the same sizes; each semi-reflective semi-transparent optical device comprises a reflection surface for reflecting light rays and a transmission face for transmitting light rays; the reflection face and the transmission face are located on two opposite faces of each semi-reflective semi-transparent optical device; the semi-reflective semi-transparent optical devices are mutually parallel or vertical; the display device comprises a plurality of square flat displays; all the displays and the semi-reflective semi-transparent optical devices are all vertical to the same plane; each display forms a 45-degree angle with the reflection face or the transmission face of each semi-reflective semi-transparent optical device; and the centers of the images formed by the displays in the first semi-reflective semi-transparent optical device are located on the same straight line.
Owner:刘武强

Active imaging type infrared stealth system

The present invention discloses an active imaging type infrared stealth system. The active imaging type infrared stealth system is composed of a thermal imaging system, an image acquisition processing system, an infrared LED drive circuit and an infrared LED display system. The main characteristics of the present invention are that the infrared LED display system is arranged in various directions of the stealth system regionally, the image acquisition processing system acquires a background infrared image generated by the thermal imaging system, at the same time, transforms a background gray level image into a modulation pulse width image according to the corresponding correlation of the modulation pulse width of an infrared LED and an image gray level, and then zooms and segments the image to form the segmentation data blocks corresponding to the number of the display sub-units and send the segmentation data blocks to the infrared LED drive circuit, and the infrared LED drive circuit controls the infrared LED display system to display the background, so that the infrared characteristics of the stealth system in a hostile infrared system are similar to the background, and accordingly, the stealth purpose is achieved. The active imaging type infrared stealth system of the present invention has the advantages of being high in camouflage fidelity, fast in stealth speed and simple in structure, being easy to install and disassemble, etc.
Owner:西安应用光学研究所

Distribution network transport inspection interacted simulation practical training device and method

The invention discloses a distribution network transport inspection interacted simulation practical training device which comprises a working station, a human body recognizer and a video output system. The human body recognizer is connected with the working station and is used for converting movements of a human body into digital signals. The video output system is connected with the working station and is used for displaying video signals output by the working station in a virtual scene. A distribution network transport inspection interacted simulation practical training method includes the steps that a trainee does a specific movement to the human body recognizer. If the movement is qualified, the working station carries out binding to a key position of the body of the trainee and carries out real-time tracking. The trainee does different movements in a simulated practical training scene according to a three-dimensional virtual scene and carries out simulated distribution network transport inspection operation. The working station obtains various limb movement information of the trainee, carries out processing to the information and projects the information into the three-dimensional virtual training scene, and consequently interaction between the trainee and the virtual operation is achieved. The distribution network transport inspection interacted simulation practical training device and the method have the advantages of effectively reducing operational risks of the trainee and investment of equipment, and improving the training effects of the trainee in a distribution network transport inspection interacted simulation practical training system.
Owner:HUZHOU ELECTRIC POWER ADMINISTATION ZHEJIANG PROV +2

Improved SAR scattered wave interference method based on floating platform

The invention discloses an improved SAR scattered wave interference method based on a floating platform. A jammer used for installing the floating platform intercepts radar time-domain signals; the distance position of the modulation center of a radar irradiation region, the course difference between the target center and the new modulation center and the course difference between the new modulation center and the irritation center are calculated, and the sum of the two course differences is calculated; a phase modulation coefficient is calculated by means of the sum of the course differences, and phase modulation is conducted on the radar time-domain signals; gain modulation is conducted on the signals modulated in a phase mode so as to form interference signals; a time-delay difference is calculated, N pulse recurrence intervals are added to the time-delay difference, and a delay clock number is calculated; the interference signals are transmitted to the radar irradiation region by means of the delay clock number, the interference signals interfere in later pulse signals, target-region echoes are overlaid with irradiation-region scattered echoes, and scattered wave interference is achieved. The improved SAR scattered wave interference method solves the problems that the interference modulation calculated amount is large and an interference scene defocuses, distorts and is small in interference range, and the improved SAR scattered wave interference method achieves efficient, vivid and large-range SAR scattered wave interference.
Owner:XIDIAN UNIV

Image special effect generation method and device, electronic equipment and storage medium

The invention relates to an image special effect generation method and device, electronic equipment and a storage medium, and relates to the field of image processing. The embodiment of the invention at least solves the problem that the image special effect display is not vivid enough in the related technology. The method comprises the following steps: acquiring a current to-be-processed image frame, wherein the current to-be-processed image frame comprises a target object; acquiring historical motion information of the target object, target simulation external force information of the target object in a historical duration and a target motion track of the target object in the historical duration, wherein the historical motion information comprises historical position information and historical speed information of the target object in the last rendered image frame; determining the current target position of the target object according to the historical motion information, the target simulation external force information, the target motion track and the historical duration; and moving the target object in the current to-be-processed image frame to the current target position to generate a current rendered image frame.
Owner:BEIJING DAJIA INTERNET INFORMATION TECH CO LTD

High-color gamut fluorescent powder composition, white LED and preparation method of white LED

The invention relates to the technical field of white LED backlight, in particular to a high-color gamut fluorescent powder composition. The fluorescent powder composition comprises red-light fluorescent powder, green-light fluorescent powder and yellow-light fluorescent powder at the mass ratio of (1-4) to (0.5-2) to (0.5-2), wherein the red-light fluorescent powder is potassium fluosilicate; and the yellow-light fluorescent powder is silicate. The invention further provides a white LED. The white LED comprises fluorescent glue which is prepared from the fluorescent powder composition. The invention further provides a preparation method of the white LED. The method comprises the steps of: weighing the red-light fluorescent powder, the green-light fluorescent powder and the yellow-light fluorescent powder at the mass ratio of (1-4) to (0.5-2) to (0.5-2); mixing the fluorescent powder with colloid to obtain the fluorescent glue; and further preparing the required white LED by the fluorescent glue. By the high-color gamut fluorescent powder composition and the preparation method of the white LED, the high-color gamut white LED can be obtained; and the high-color gamut white LED has the advantages of being relatively high in color saturation level and more realistic.
Owner:SHENZHEN LT OPTOELECTRONICS CO LTD
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