公开(公告)号：US11255677B2

公开(公告)日：2022-02-22

申请号：US16578442

申请日：2019-09-23

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Wei Wang ,  Shengkai Zhang ,  Tao Jiang

IPC: G01C21/16 ,  G01S13/58 ,  G01S7/40

Abstract: The present disclosure discloses an intelligent device navigation method and navigation system. The method comprises the following. Construct a plurality of antennas on a network card in the intelligent device into a linear antenna array. By using the linear antenna array, acquire channel state information of a wireless signal, and estimate an angle of arrival (AoA) and a time of flight (ToF) between the wireless signal transmitting device and the intelligent device. Measure inertial parameters of the intelligent device. Perform data fusion of the AoAs, the ToFs and the inertial parameters to estimate a state variable of the intelligent device. Adjust a motion state of the intelligent device with reference to the state variable, thereby achieving autonomous navigation of the intelligent device. The disclosure can estimate the state of the intelligent device by using wireless signals ubiquitous in the surrounding environment in a GPS unreliable environment.

公开(公告)号：US10197476B2

公开(公告)日：2019-02-05

申请号：US15691698

申请日：2017-08-30

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Hui Gong ,  Jing Yuan ,  Tao Jiang ,  Lei Deng ,  Qingming Luo

IPC: G01N1/06 ,  G01N1/18 ,  G01N1/14 ,  G01N35/10

Abstract: An automatic slicing and collecting device, the device including: a first tank, a vibrating microtome, a first pipeline, and a second pipeline. The first tank is filled with a buffer solution. The vibrating microtome is disposed in the first tank. One end of the first pipeline is connected to the vibrating microtome to collect sections, and the other end of the first pipeline is connected to a pump. The pump includes a reversible motor. The first pipeline is provided with a first valve, and a filter is disposed between the pump and the first pipeline. One end of the second pipeline is disposed between the first valve of the first pipeline and the pump, and the second pipeline is provided with a second valve.