User's Manual

Tags User Manual PRF-TAG’s
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• Tag Activator: Whenever a tag enters into the range of an activator, the tag picks up the
activator's unique ID and adds it to the transmitted message. This indicates that the tag is very
close to that activator (approximately within 2 meters/ 6 feet).
• Tag Sensors: The tag can incorporate up to three types of internal sensors for indicating its
status. Each sensor controls one bit in the transmitted message. Such sensors include:
 Low Battery: Indicating that the tag's battery voltage is under a predefined threshold
meaning that the tag must soon be replaced.
 Tag Motion: The tag turns on the in-motion bit to indicate that it is in motion (being
moved). These transmissions can be at regular routine timing or at an accelerated rate as
alarm transmissions.
 Tag Tamper/Panic: The tag turns on the tamper/panic bit to indicate that its
tamper/panic switch has been activated.
Typically, a tag can be set with two transmission frequencies (timings), one set of
frequency for the routine random timing transmissions and another timing (usually more
often) for an alarm status, which is activated by a sensor. For example, the tag may be set
to transmit in average every ten minutes, when it is static, and every one minute, if it is
moving. The duration of alarm transmissions may vary from a single transmission and up to
a time period as set for the tag (for example up to 5 seconds).
1.2.2 Tag Permission Events
In addition to the above, other types of events can be triggered for a tag as a result of the
third-party user application that can be programmed to periodically analyze the received
messages according to a set of defined rules in order to detect interesting combination
events such as the following:
•
Tag Inside Authorized Zone: The tag’s signal was detected in an authorized zone.
• Tag Outside Authorized Zone: The tag’s signal was detected in an unauthorized zone.
• Tag Inside Homereceiver: The tag’s signal was detected inside its homereceiver.
• Tag Outside Homereceiver: The tag’s signal was detected outside of its homereceiver.
• Tag Authorized Timeout: The tag’s signal was detected in an authorized zone, but it is no
longer transmitting.
• Tag Homereceiver Timeout: The tag’s signal was detected in its home receiver zone, but it
is no longer transmitting.
• Tag Missing: When no signal is detected for a defined period of time from a tag that was
recently transmitting.
• Tag Shock: A tag that is undergoing a significant amount of movement.
1.3 What is a PureRF Receiver?
Each PureRF receiver picks up the messages transmitted by the PureRF tags in its vicinity
and transfers tag and receiver events to the user application. The receiver(s) pick up each