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Automotive GNSS real time kinematic dead reckoning receiver

A dead reckoning and vehicle technology, applied in the field of global positioning systems, can solve problems such as unsupported reliable accuracy

Inactive Publication Date: 2017-12-01
VEONEER US LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional systems do not support the accuracy required for reliable, widespread use of next-generation automotive positioning systems

Method used

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  • Automotive GNSS real time kinematic dead reckoning receiver
  • Automotive GNSS real time kinematic dead reckoning receiver
  • Automotive GNSS real time kinematic dead reckoning receiver

Examples

Experimental program
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Embodiment Construction

[0023] see figure 1 , shows a schematic diagram of a system 50 according to one embodiment of the present invention; system 50 generally includes a plurality of vehicles 52a-52n, a satellite 56 and a base station 58. Each of the vehicles 52a-52n includes at least two of the plurality of devices (modules or circuits) 100a-100n (system 50 shows vehicles 52a-52n with one of the devices 100a-100n for clarity). combine figure 2 The arrangement of the two or more modules 100a-100n in each of the vehicles 52a-52n is described in more detail. combine image 3 Module 100a is described in more detail.

[0024] Each of vehicles 52a - 52n is shown connected to satellite 56 . For example, each of the modules 100a - 100n in the vehicles 52a - 52n may be connected to the satellite 56 . This connection to the satellite 56 may be achieved through a GPS type connection. Linking at least two of the modules 100a-100n in each of the vehicles 52a-52n may allow the modules 100a-100n to calcul...

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Abstract

An apparatus comprising a first antenna, a second antenna, a processor and a memory. The first antenna is configured to connect to a GPS satellite. The second antenna is configured to connect to the GP S satellite. The first antenna is positioned separately from the second antenna. The processor is configured to execute instructions. The memory is configured to store the instructions that, when executed, perform the steps of (i) calculating a first value measured through a connection between the first antenna and the GPS satellite, (ii) calculating a second value measured through a connection between the second antenna and the GPS satellite, and (iii) determining a correction value to compensate for local conditions by analyzing differences between the first value and the second value.

Description

technical field [0001] The present invention relates generally to the Global Positioning System (GPS), and more particularly to methods and / or devices for implementing real-time dynamic dead reckoning receivers for automotive GNSS. Background technique [0002] Conventional GPS systems typically use real-time kinematic (RTK) technology to provide fixed ground-based reference stations. Conventional systems use expensive sensors to improve the accuracy of standard GPS. Such systems are useful for providing centimeter-level accuracy in agricultural applications and land surveying applications. Conventional automotive Global Navigation Satellite System (GNSS) receivers employ positioning solutions with sensor-based dead reckoning technology that uses on-board gyroscope and wheel brake messages from the vehicle's Controller Area Network (CAN) (wheel click messages) to maintain an accuracy of up to 5 meters in open environmental conditions. Accuracy is poor in densely vegetated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/40G01S19/13
CPCG01S19/13G01S19/40G01S19/49G01S19/36G01S19/43
Inventor 戴维·F·乔丹达瑞尔·A·格鲁姆
Owner VEONEER US LLC