Ricoh Company, Ltd.

Beijing Bytedance Network Technology Co., Ltd.

Global Energy Interconnection Research Institute Co. Ltd

State Grid Corporation of China Co., Ltd

State Grid Hebei Electric Power Company Co., Ltd.

Cheng Zhong

Tong Liu

Zhongchao Shi

Gang Wang

Yi Chen

Yuan Liu

Peipei Wu

Yating Lin

Xun Yuan

Yun Liang

Fazhe He

Xiaoyuan Ma

Binglin Li

Jinghong Guo

Weiwei Miao

Ningxi Song

Lidong Lv

Han Su

Fengzhen Zhou

Provided are a data search processing method and apparatus, an electronic device, and a storage medium. The method includes: receiving a search request that includes an entity keyword attributing to a target category; acquiring dimension information on the target category in at least two dimensions and a multimedia resource set of the entity keyword in each of the at least two dimensions, in which the at least two dimensions includes an entity making dimension and an entity site dimension; and displaying a search result page, in which the search result page includes a first region and a second region, the dimension information in the at least two dimensions is displayed in the first region, the second region including a plurality of predetermined sub-regions, and the multimedia resource set in corresponding one of the at least two dimensions to each predetermined sub-region is displayed in the predetermined sub-region.

Data search processing method and apparatus, electronic device, and storage medium

The present invention discloses a method for lightning stroke identification and location on optical fiber composite overhead ground wire. In the method, according to the property that the lightning stroke will cause a sudden temperature rise at the lightning stroke position on the optical fiber composite overhead ground wire, optical fiber resources in the optical fiber composite overhead ground wire and the high-sensitivity detection and high-precision event locating capability of a distributed optical fiber temperature sensor can be fully utilized. The distributed optical fiber temperature sensor is connected to a spare optical fiber in the optical fiber composite overhead ground wire, and the corresponding relation between the geographical position of the optical fiber composite overhead ground wire and the distributed temperature curve is established, and then the temperature data at the same position in the temperature curve at different moments are respectively compared to extract a sudden temperature change area. In addition, the temperature change of several positions adjacent to the sudden temperature change area in the temperature curve are compared to exclude interference factors in temperature measurement, so as to determine that the sudden temperature change is caused by instant heating from an external factor, namely the lightning stroke, and finally, the lightning stroke is identified and located in combination with the change of counting data of a lightning arrester.

Method for lightning stroke identification and location on optical fiber composite overhead ground wire

Disclosed are a method and a system for detecting a vehicle position by employing a polarization image. The method comprises a step of capturing a polarization image by using a polarization camera; a step of acquiring two road shoulders in the polarization image based on a difference between a road surface and each of the two road shoulders in the polarization image, and determining a part between the two road shoulders as the road surface; a step of detecting at least one vehicle bottom from the road surface based on a significant pixel value difference between each wheel and the road surface in the polarization image; and a step of generating a vehicle position from the vehicle bottom based on a pixel value difference between a vehicle outline corresponding to the vehicle bottom and background in the polarization image.

Method and system for detecting vehicle position by employing polarization image

A night-scene light source detecting device includes a pixel value obtaining unit configured to obtain a pixel value of each pixel in an input image; a night-scene-feature extraction unit provided for extracting a zone area of a mean corrected-brightness value and a high corrected-brightness value of the input image as two night-scene features based on the pixel value of each pixel in the input image; a night-scene image detection unit provided for determining whether the input image is a night-scene image or not based on the two night-scene features; a specific color detection unit provided for detecting whether each pixel belongs to specific color or not; and a night-scene light source determining unit provided for determining whether the night-scene image is picked up under irradiation by the specific light sources in a night scene or not based on the result of the specific color detection.

Night-scene light source detecting device and night-scene light source detecting method

Growing community of inventors

Beijing, China

Cheng Zhong