[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

智能床垫的睡眠监测若基于压电薄膜(BCG弹道心冲击图)传感器,心率误差可控制在±3bpm、呼吸率误差±2次/分,适合有睡眠健康管理需求的人群;仅靠床垫内置加速度计估算的产品误差通常超过±10bpm,参考价值有限

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