Unverified85% confidenceDecision RuleTime unknown
无线紧急按钮首选433MHz或Zigbee协议，传输距离室内约30-50米、穿1-2堵墙，超过此距离需加装信号中继器，否则老人在卫生间按下可能无法触发主机
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85%
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Long-term
Relevance
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Unverified老人跌倒报警场景优先选无线SOS按钮（433MHz或Zigbee），布线在卫生间、床头等位置无需破坏装修；无线传输距离室内实测应≥50m，穿1堵承重墙不失联87% similarUnverified全屋覆盖（卫生间+卧室+客厅）建议选无线433MHz或Zigbee组网主机+多个分机按钮，无线信号穿墙2-3堵后衰减明显，主机到最远分机直线距离建议控制在30米内并现场实测触发82% similarUnverified无线安装免布线但依赖电池且信号受墙体衰减，别墅或多层大户型主机与探测器距离远时应选支持子设备中继或Zigbee Mesh组网的系统，纯433MHz点对点方案穿墙易失联74% similarUnverified无线震动报警器优先选择433MHz或Zigbee而非WiFi直连：WiFi机型功耗高、续航短且断网即失效，433MHz穿墙性能更适合门窗分布式布点73% similarUnverified专业安防主机的无线传感器多采用433MHz或Zigbee协议，433MHz穿透性好距离远，Zigbee组网稳定支持双向通信可回传电量状态73% similar
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