Monitoring sensor
First Claim
1. Monitoring sensor for an article (22) susceptible to theft, comprising a sensor element (36) for monitoring a proper secure attachment of the monitoring sensor (20) to the article (22) and a connecting cable (18) for connection of the sensor (20) to a monitoring circuit (12) of a theft protection system (10), wherein the sensor (20) makes a measured variable available during disconnecting of said attachment to the article (22), alteration in said variable being evaluated by the monitoring circuit (12) as a theft alarm situation, wherein the sensor (20) comprises a flexible contact surface element (26) abutting areally on the article (22) in the case of said attachment of the sensor (20) to the article (22), wherein the sensor element (36) is designed and arranged such that an alteration in the shape of the contact surface element (26) during disconnecting of said attachment of the sensor (20) to the article (22) results in an alteration in the measured variable, and wherein the sensor element (36) is deformable with the contact surface element (26) for adaptation to the shape of the article (22) and is arranged to extend essentially parallel to a contact surface (28) of the contact surface element (26).
2 Assignments
0 Petitions
Accused Products
Abstract
A monitoring sensor for articles susceptible to theft, comprising a sensor element for monitoring a proper contact of the sensor with the article and a connecting cable for connecting the sensor to a monitoring circuit of a theft protection system is proposed. During disconnecting of the proper contact with the article, the sensor makes available a measured variable, the alteration in which can be evaluated by the monitoring circuit as an alarm situation. To enable the sensor to be produced in a flat type of construction and also to be easily connected to curved surfaces of an article to be protected, the sensor and the sensor element are of a flexible design, whereby any alteration in shape during disconnecting of the proper contact between sensor and article results in an alteration in the shape of the contact surface element and in an alteration in the measured variable.
57 Citations
20 Claims
- 1. Monitoring sensor for an article (22) susceptible to theft, comprising a sensor element (36) for monitoring a proper secure attachment of the monitoring sensor (20) to the article (22) and a connecting cable (18) for connection of the sensor (20) to a monitoring circuit (12) of a theft protection system (10), wherein the sensor (20) makes a measured variable available during disconnecting of said attachment to the article (22), alteration in said variable being evaluated by the monitoring circuit (12) as a theft alarm situation, wherein the sensor (20) comprises a flexible contact surface element (26) abutting areally on the article (22) in the case of said attachment of the sensor (20) to the article (22), wherein the sensor element (36) is designed and arranged such that an alteration in the shape of the contact surface element (26) during disconnecting of said attachment of the sensor (20) to the article (22) results in an alteration in the measured variable, and wherein the sensor element (36) is deformable with the contact surface element (26) for adaptation to the shape of the article (22) and is arranged to extend essentially parallel to a contact surface (28) of the contact surface element (26).
Specification