Remote unit link quality monitoring

摘要

A method and range monitoring system for verifying that communication between two communicating units is of satisfactory quality and that the units are within a predetermined range from one another, wherein the units are in non-continuous communication. One or both units test that the quality and distance by sending a signal to the other unit, and expecting a response signal. If no response signal is received, an alert is fired. The check is initiated upon a trigger, such as a timer, a sensed motion, or a user-initiated event such as when the user presses a button.

主权项

1. A method for verifying communication between a first unit and a second unit, the first unit adapted to communicate with the second unit, the first unit being a mobile unit or a stationary unit and the second unit being a mobile unit, the method comprising:
performing multiple checks; wherein each check comprises: the first unit receiving a trigger event; the first unit sending a request signal to the second unit; the first unit determining that a response signal was not received from the second unit or that a response signal is of low quality or intensity was received; firing an alert, wherein the two units are adapted to communicate in a non-continuous manner; and testing a quality or intensity parameter of the response signal; wherein when the second unit moves at a speed that is below a predefined threshold the multiple checks are executed at a first rate; wherein when the second unit moves at a speed that is above the predefined threshold the multiple checks are executed at a second rate, wherein the first rate is lower than the second rate.