Wireless sensor node for autonomous monitoring and alerts in remote environments

A personal alert and tracking system comprising one or more nodes, wherein each of the one or more nodes comprises:

• (a) a first radio transceiver chip operating at a first frequency range and a second radio transceiver chip operating in a second frequency range, wherein:
• (1) the first radio transceiver chip and the second radio transceiver chip enable the node to operate as either a mobile sensor node or a relay base station node;
• (2) the second radio transceiver chip provides a relay link between the one or more nodes;
• (b) a power amplifier that increases a line-of-sight communication between the one or more nodes;
• (c) one or more sensors for providing sensor information, wherein the one or more sensors comprise:
• (1) a global positioning system (GPS) module for providing a location;
• (2) a temperature sensor for determining a temperature;
• and
• (3) an accelerometer for triggering an alert condition;
• (d) a first display for displaying alert information;
• (e) embedded software configured to:
• (1) capture and process the sensor information;
• (2) provide a multi-hop packet routing protocol to relay the sensor information to a command center;
• (3) receive alert information from the command center;
• and
• (4) display the alert information on the display.