Positioning method and related processing circuit

A technology for processing circuits and positioning methods, which is applied in the field of positioning and navigation, and can solve problems such as navigation misleading, vehicle position error, and accuracy drop
CN111856540AInactive Publication Date: 2020-10-30MEDIATEK INC
17 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MEDIATEK INC
Publication Date
2020-10-30
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a positioning method and a related processing circuit. The method for performing positioning operations, wherein the method includes the steps of: receiving first positioning information from a first source; receiving second positioning information from a second source; obtaining surrounding environment information of a vehicle from a sensor; and referring to the surroundingenvironment information to determine a positioning strategy to use at least one of the first positioning information and the second positioning information to obtain a location of the vehicle. According to the positioning method and the related processing circuit, the current position and navigation information can be given more accurately.
Need to check novelty before this filing date? Find Prior Art

Description

【Technical field】

[0001] This application is about positioning and navigation, and more specifically about hybrid positioning systems using GNSS and inertial sensors. 【Background technique】

[0002] In vehicle navigation systems that include Global Navigation Satellite System (GNSS) and inertial sensors, when the GNSS signal is poor and unreliable, the vehicle's position may be wrong and / or navigation may be misguided. The quality of the GNSS signal will be affected by the surrounding environment, for example, commercial GNSS chipsets perform well in open sky conditions, but when the vehicle is in an urban canyon or in a tunnel, the accuracy may be severely degraded. In conventional technology, inertial sensors can also be used to estimate the position of the vehicle, however, how to determine the trust level of GNSS and inertial sensors, and how to determine the switching time between GNSS and inertial sensors are important topics. 【Content of invention】

[0003] Accordi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More