Monitoring tag with removal detection

Details Monitoring tag with removal detection Monitoring tag with removal detection

1995-06-16

1996-08-06

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

340568, 340600, G08B 13187, G08B 2904

Patent

active

055437800

ABSTRACT:
A tag is provided for being secured to an object whose location is to be monitored. Improved mechanisms are provided for ensuring that removal of the tag is detected and signaled to a monitoring system. One preferred embodiment of the tag of the present invention includes an optical sensor for sensing when the tag is near the surface of the object whose location is being monitored. The optical sensor emits optical signals to the surface of the object being monitored and receives reflected optical signals back therefrom. The tag periodically transmits status messages to the monitoring system which permit the monitoring system to determine whether the tag is being held near the object and whether the tag is within the monitored area. In another embodiment of the present invention, a temperature sensor is substituted for the optical sensor.

REFERENCES:
patent: 4471345 (1984-09-01), Barrett, Jr.
patent: 4482890 (1984-11-01), Forbes et al.
patent: 4885571 (1989-12-01), Pauley et al.
patent: 4918432 (1990-04-01), Pauley et al.
patent: 4952913 (1990-08-01), Pauley et al.
patent: 5014040 (1991-05-01), Weaver et al.
patent: 5196825 (1993-03-01), Young
patent: 5245317 (1993-09-01), Chidley et al.
patent: 5285194 (1994-02-01), Ferguson
patent: 5374921 (1994-12-01), Martin et al.

Affiliated with

Also associated with

Rating

Monitoring tag with removal detection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Monitoring tag with removal detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring tag with removal detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2193833