Invention Grant
- Patent Title: Local error generation device, computer readable medium, and positioning augmentation information distribution system
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Application No.: US16348771Application Date: 2016-11-15
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Publication No.: US11378696B2Publication Date: 2022-07-05
- Inventor: Seigo Fujita , Masakazu Miya , Yuki Sato , Hayato Shiono
- Applicant: Mitsubishi Electric Corporation
- Applicant Address: JP Chiyoda-ku
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- International Application: PCT/JP2016/083851 WO 20161115
- International Announcement: WO2018/092193 WO 20180524
- Main IPC: G01S19/07
- IPC: G01S19/07 ; G01S19/08 ; G01S19/28
Abstract:
A local error estimation unit (515) of a local error generation device (500) estimates and generates local errors (δT, δI) based on global errors (δo, δt, δb) included in positioning augmentation information (81) produced in an electronic reference point network (120) and observed data (61) generated by receivers on electronic reference points (611, 612) not belonging to the electronic reference point network (120). The local errors (δT, δI) are errors that influence positioning accuracy in a region where the electronic reference points (611, 612) exist and that depend on the region where the electronic reference points (611, 612) exist.
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