发明名称 |
Transporting residue of vehicle position data via wireless network |
摘要 |
The invention relates to compressed data transmission in wireless data communication. Disclosed are methods and apparatuses for transporting residue of vehicle position data via a wireless network. A disclosed method for transporting residue of vehicle position data via a wireless network, includes the steps of: receiving data for updating residue encoding schema from a monitoring server; constructing a residue encoding schema based on the data, thereby producing a constructed residue encoding schema; and storing the constructed residue encoding schema such that the constructed residue encoding schema will become the current residue encoding schema; where: the constructed residue encoding schema is constructed such that each residue of the constructed residue encoding schema corresponds to a code; and the constructed residue encoding schema is constructed such that a residue having a relatively high probability of occurrence corresponds to a code of relatively short length. |
申请公布号 |
US9510155(B2) |
申请公布日期 |
2016.11.29 |
申请号 |
US201514682239 |
申请日期 |
2015.04.09 |
申请人 |
International Business Machines Corporation |
发明人 |
An Wen Hao;Fan Liya;Gao Bo;Sun Xi;Zhang Yuzhou |
分类号 |
H04W4/02;G08G1/127;G08G1/01;H04B1/3822;H04W28/06;H03M7/40;H04W64/00 |
主分类号 |
H04W4/02 |
代理机构 |
|
代理人 |
Lammes Francis;Walder, Jr. Stephen J.;Tang Jeff |
主权项 |
1. A vehicle-mounted terminal for transporting residue of vehicle position data via a wireless network, comprising:
a data acquisition device, configured to obtain position data of a vehicle; an encoding schema updating device, configured to calculate a probability of occurrence of a residue corresponding to the vehicle according to a normalized residue distribution, and construct a residue encoding schema according to the probability of occurrence utilizing data received from a backend server via the wireless network, thereby producing a constructed residue encoding schema; a storage device, configured to store the constructed residue encoding schema; and an encoder, configured to generate a corresponding code of a residue according to the constructed residue encoding schema; wherein: the vehicle-mounted terminal is located in the vehicle; the constructed residue encoding schema is constructed such that each residue of the constructed residue encoding schema corresponds to one code; and the constructed residue encoding schema is constructed such that a residue with a relatively high probability of occurrence corresponds to a code of relatively short length. |
地址 |
Armonk NY US |