公开(公告)号：US20230094992A1

公开(公告)日：2023-03-30

申请号：US18076229

申请日：2022-12-06

Applicant: Beijing Baidu Netcom Science Technology Co., LTD.

Inventor： Chuanming ZHANG ,  Min LIU ,  Zhi WANG ,  Hailu JIA

IPC: G01S5/02

Abstract: A method for generating a wireless signal fingerprint database includes: obtaining an initial atmospheric pressure value, in which the initial atmospheric pressure value is an atmospheric pressure value collected when a terminal enters indoors; obtaining periodically a current wireless signal fingerprint and a current atmospheric pressure value collected by the terminal; and determining a floor corresponding to the current wireless signal fingerprint based on the initial atmospheric pressure value and the current atmospheric pressure value, to obtain the wireless signal fingerprint database.

公开(公告)号：US20220084400A1

公开(公告)日：2022-03-17

申请号：US17532407

申请日：2021-11-22

Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.

Inventor： Yile WANG ,  Ning YANG ,  Chuanming ZHANG

IPC: G08G1/01 ,  G08G1/081 ,  G08G1/052

Abstract: Provided are a green wave speed determination method, an electronic device and a storage medium, which relates to the field of artificial intelligence, particularly, the field of intelligent traffic technology. The implementation scheme is as follows: a stop position of a vehicle to be detected at an intersection and waiting time of an indicator light at the intersection are acquired; and a green wave speed of the vehicle to be detected is determined according to a traffic condition type, the stop position and the waiting time.