Other

Boe Technology Group Co., Ltd.

Beijing Boe Display Technology Co., Ltd.

Research Institute of Highway Ministry of Transport

Liwei Zhu

Jian Gao

Wei Zhou

Zhiming Meng

Yunfei Wang

Luqiang Guo

Nan Liu

Chen Li

Xiao Li

Zhichao Liu

Honghai Li

Qian Yi

Jie Jin

Ming Hua

Xuewen Zhang

Yameng Li

Xinyu Hu

Wenliang Li

Ling Sun

Jin Gao

Dezao Hou

Jiahai Zhao

Yanqing Cen

Fengman Yang

Xianghui Song

Dongzhu Wang

Liyang Lu

Yujiang Song

Chen Cao

Qi Zhan

Huajian Li

A vehicle-road cooperation precise positioning method based on an electrified highway includes measuring position information of its own positioning point by using a roadside positioning module; determining absolute coordinates of all points on a communication line according to the position information; acquiring a contact signal when a vehicle-road connection information system comes into contact with the communication line, and determining position information of a contact point according to the contact signal and the absolute coordinates; and based on a conversion algorithm, determining current vehicle mass center position coordinate information according to the position information of the contact point and parameter information of the vehicle-road connection information system. In the process of real-time acquisition of vehicle dynamic position information, the method does not rely on a satellite positioning system at all and is based on a wired vehicle-road connection of the electrified highway, so that timeliness and reliability are higher.

Vehicle-road cooperation precise positioning method based on electrified highway

The present application provides an intelligent cloud traffic control system, which has a traffic data recalling and transmission architecture arranged hierarchically from bottom to top, and which includes: terminal devices, first-level cloud devices, second-level cloud devices, . . . i-level cloud devices; wherein the i-level cloud devices include a first cloud device, . . . a jcloud device; the i-level cloud devices further include: a first cache cloud, . . . a kcache cloud arranged corresponding to the jcloud device; wherein the jcloud device stores a jcloud device traffic data set, and the kcache cloud stores a kcharacteristic traffic data set; and data in the kcharacteristic traffic data set has a higher priority of being recalled than data in the jcloud device traffic data set. Therefore, the present application can preferentially recall traffic data in the cache cloud that has a batter correspondence to task, a smaller range and even a better data structure, thereby significantly improving the data recalling rate and retrieval response efficiency of cloud devices at the same level and even the entire intelligent cloud traffic control system.

Intelligent cloud traffic control system and traffic control method

The present application provides a turn-on voltage supplying circuit and method, a defect analysis method and a display device. The turn-on voltage supplying circuit includes a voltage supplying unit and a switching unit. The voltage supplying unit is configured to provide turn-on voltages, values of which being within a predetermined range, to the M stages of gate driving circuits respectively in the case that the M stages of gate driving circuits are in a normal operation state, or provide corresponding turn-on voltages to the gate driving circuits in the case that the gate driving circuits are subject to a defect analysis process. M is an integer greater than 1. When the gate driving circuits are subject to the defect analysis process, the voltage supplying unit comprises variable resistors connected between a reference turn-on voltage outputting terminal and the turn-on voltage inputting terminals of the gate driving circuits.

Turn-on voltage supplying circuit and method, defect analyzing method and display device

Growing community of inventors

Beijing, China

Liwei Zhu