Mobile Computing and Communication Device for Use as a Mobile Phone in Normal Operation and as a Survivability Detection Device in a Disaster Situation

摘要

A mobile computing and communication device for a normal and an emergency occasion is disclosed. The invention is based upon a conventional mobile device with an added emergency operation unit including a second communication unit, a sensory unit and an external RF energy controlled switch. The second communication unit is based upon a short-range and ad hoc communication network. If the battery power is below a preset value, the mobile device is switched off. The reserved power is switched on for the emergency operation unit if a sufficient strong RF energy is received and a reference voltage in exceeding of a threshold voltage of a switch is generated. The radio-frequency energy may be delivered through an un-modulated electromagnetic wave from an external source. The second communication unit establishes the ad hoc communication network with a mobile rescues station and transmits the collected data from the sensory unit to the station through the network.