ADAPTIVE POWER SAVING STRATEGY FOR GPS INTELLIGENT TERMINAL

被引：1

作者：

Wu, C. C. ^{[2
]}

Cai, Y. P. ^{[1
]}

Zhao, J. ^{[2
]}

机构：

[1] Peking Univ, Inst Remote Sensing, GIS, Beijing 100871, Peoples R China

[2] China Agr Univ, Coll Informat & Elect Engn, Beijing 100083, Peoples R China

来源：

2013 FIFTH INTERNATIONAL CONFERENCE ON GEO-INFORMATION TECHNOLOGIES FOR NATURAL DISASTER MANAGEMENT (GIT4NDM) | 2013年

基金：

国家高技术研究发展计划(863计划);

关键词：

PDA; Satellite searching; Power saving strategy; Power management; TTFF; Gravity sensor;

D O I：

10.1109/GIT4NDM.2013.18

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Focusing on the demand of positioning and power saving management for GPS intelligent terminals, taking police usage for example, a satellite searching strategy is developed to resolve the GPS's TTFF (time to first fix) problem. The strategy includes two types: user working time based strategy and GPS working characteristic based strategy. In further, the active states of the mobile terminal is collected by the gravity sensor to improve the TTFF strategy. A test with DOPOD P660 PDAs shows that under the adaptive TTFF strategy, PDAs' operating time can be extended to eleven hours and forty five minutes, about three times the strategy not used, which could satisfy the needs of the police usages.

引用

页码：31 / +

页数：2

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