Unverified80% confidenceDecision RuleTime unknown
买之前不确认GPS+北斗双模定位的机型不建议购买,单GPS在城市高楼峡谷和高架桥下定位漂移严重,双模或多模定位收敛更快更准
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified不熟悉坐标系与地图标定的新手不建议直接买纯功能型手持GPS,应选带清晰图形界面和路线规划App联动的机型,否则关键时刻难以快速操作82% similarUnverified只在国内使用却买了仅支持GPS单模、不支持北斗的进口设备不划算,中国境内北斗+GPS双模的可视卫星数更多、城市峡谷(高楼间)定位更稳定82% similarUnverified支持GPS+北斗双模定位,理论定位覆盖优于单GPS,但实际精度受城市峡谷、地下停车场等弱信号环境影响,室内定位存在偏差。82% similarUnverified支持双频GPS+GLONASS+北斗多星座定位的芯片在城市高楼峡谷和山区峡谷定位漂移显著更小,单一GPS芯片在遮挡环境定位误差可达数十米79% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/404591API
curl https://kongchang.com/api/v1/knowledge/claims/404591MCP
get_claim(id=404591)