Separation alert device
作者： Lester Fritz
DOI:
关键词:
摘要: A separation alert device for warning a user of from an item includes housing that defines internal space. The is configured retention on the user's person. power module, microprocessor, first proximity sensor and plurality alarms are coupled to positioned in microprocessor operationally module. microprocessor. second wireless communication with desires retain proximate user. receive location signal sensor. Separation by preset distance will compel notify
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