Systems and methods for sharing convergence data between GNSS receivers are disclosed. Convergence data received at a GNSS receiver via a communication connection may be utilized to determine a position of the GNSS receiver.

In a case where a first RTK positioning solution is a fixed solution and a second RTK positioning solution is a float solution, a processor estimates a position of a second receiver based on the first RTK positioning solution, inter-antenna distance, and antenna azimuth angle to set an area within a circle with radius centered on the estimated position as a search range. Next, the processor calculates an integer ambiguity within the search range obtained in the RTK calculation as a second RTK positioning solution. Then, the processor outputs the first RTK positioning solution and the second RTK positioning solution as positioning solutions (current coordinates of a moving object).

A method for guiding a blind, an electronic device, a storage medium and a blind guide product, and related to the technical field of navigation are provided. The method includes: acquiring Beidou satellite data and base station differential data, and determining location information of a user by using a carrier phase differential technology; in response to a blind guide request, generating a blind guide route according to current location information and destination information input by the user; and broadcasting a voice prompt based on the blind guide route. The location accuracy of a user is improved, and blind guide requirements for a complex road section can be met, thereby improving the travel safety for the user.

Apparatuses and methods of securing Global Navigation Satellite Systems are disclosure. In one exemplary embodiment, a mobile device may comprise: a communication interface configured to monitor signals from a plurality of satellites, a processor configured to determine impairment of one or more satellites in the plurality of satellites using the signals form the plurality of satellites, a memory configured to store a status of the determined impairment of one or more satellites in the plurality of satellites, and the communication interface that transmits the status of the determined impairment of the one or more satellites in the plurality of satellites to a server. The processor further determines a position of the mobile device using the status of the determined impairment of one or more satellites in the plurality of satellites, and stores the determined position and a corresponding digital certificate indicative of authenticity of the determined position in a memory.

The subject matter disclosed herein relates to determining a background location of a mobile device using one or more signal metrics.

The present disclosure discloses a method and a system for preventing leakage of Beidou differential positioning data. The method includes the following steps: step 1, determining the number of positioning terminals; step 2, making identification cards, wherein one identification card corresponds to one positioning terminal, and writing data into each identification card; step 3, putting the identification cards into the card slots of the positioning terminals corresponding to the identification cards; step 4, verifying whether the read data is accurate; step 5, generating the Beidou differential positioning data by the positioning base station, a positioning satellite and the positioning terminals operating normally. The system includes a positioning base station, a positioning satellite, a service terminal, a card issuing device, a plurality of identification cards and a plurality of positioning terminals.

A method of enhancing the accuracy of a navigation system which includes a GNSS receiver. The method includes receiving navigation signals from at least one GNSS constellation and a LEO constellation. Position estimates will be made through implementation of a filter using successive readings of pseudoranges and carrier-phase measurements from the GNSS constellation and carrier-phase measurements from the LEO constellation.

According to an embodiment, an apparatus for precise position correction using a positioning difference comprises a first distribution information obtaining unit gathering first distribution information from an external terminal, a global navigation satellite system (GNSS) receiver obtaining a GNSS positioning value of the apparatus based on a GNSS, and a positioning correcting unit obtain a corrected location of the apparatus by correcting the GNSS positioning value using the gathered first distribution information. The first distribution information includes a GNSS positioning value of the external terminal, a GNSS positioning time, a precise positioning value, and a positioning difference between the GNSS positioning value and the precise positioning value.

Systems and methods for sharing convergence data between GNSS receivers are disclosed. Convergence data received at a GNSS receiver via a communication connection may be utilized to determine a position of the GNSS receiver.

The information processing system includes a server and an electronic device. The electronic device includes a communicating unit; a position detector detecting a position; an information acquiring unit acquiring position information for each of a plurality of other electronic devices and error information that indicates an error in the position information; a determining unit determining whether the electronic device is surrounded by the plurality of other electronic devices, and determining whether the electronic device is in a specific state; and a transmission control unit transmitting correction information that includes the position and the position information to the server when the electronic device is determined to be surrounded by the plurality of other electronic devices and to be in the specific state. The server corrects the position of the electronic device based on the correction information.