Question: 海康威视最近一个交易日的最低价
Answer: 必答点：海康威视的最新最低价
精度要求：仅允许四舍五入误差
Time: 2025/8/14
Real-time data: {"002415___SZ":{"RT_TIME":"150000","RT_DATE":"20250814","RT_LOW":"29.1"}}