Object monitoring system

A method for use in an object monitoring system, the object monitoring system including a tag associated with a respective object in use, wherein the tag includes:

• i) a tag memory configured to store object rules;
• ii) a tag transceiver configured to transmit or receive messages;
• and,
• iii) a tag processing device, the method including, in the tag processing device:
• (1) determining context data at least partially indicative of a tag context by using at least one of:
• a) a received message, including at least one of:
• i) a broadcast message from another tag:
• ii) a client device message from a client device;
• b) sensor data from at least one sensor;
• c) user input commands;
• d) using stored context data;
• (2) using the object rules and the context data to identify a trigger event;
• (3) determining an action associated with the trigger event;
• and,
• (4) causing the action to be performed;
• and
• wherein the tag is a first tag that:
• determines a second tag context using a broadcast message transmitted by a second tag associated with a second object;
• determines a mutual context using the second tag context and a first tag context;
• and,
• identifies a trigger event if the mutual context breaches the mutual context restrictions.