Personnel security system
First Claim
Patent Images
1. A security sensing system for monitoring the passage of persons through a door or like opening comprising:
- a transmitter module for installing on persons to be monitored, a sensing module for installing adjacent to a door opening to be monitored, and means responsive to the opening of the door to enable the sensing module to respond to the signal transmitted by the transmitter module to produce an output response, and alarm means energizable in response to the production of the output response to produce an alarm condition,the transmitter module including a housing having a transmitter circuit, a source of power for the transmitter circuit and transmitter antenna means installed therein,the sensing module including a receiving circuit and associated sensing means located adjacent to the door opening to be monitored, andsaid means responsive to the opening of the door including means to enable the receiving circuit in the sensing module whereby the receiving circuit can respond to signals transmitted by the transmitter module to produce a response for energizing the alarm means.
7 Assignments
0 Petitions
Accused Products
Abstract
A security sensing system monitors the passage of persons through a door or like opening. A transmitter module having means for transmitting an omnidirectional signal is installed on persons to be monitored and a sensing module for installing adjacent to a door opening to be monitored. The sensing module operates an alarm, but only when the door is opened by a person equipped with a trigger module on his person.
-
Citations
18 Claims
-
1. A security sensing system for monitoring the passage of persons through a door or like opening comprising:
-
a transmitter module for installing on persons to be monitored, a sensing module for installing adjacent to a door opening to be monitored, and means responsive to the opening of the door to enable the sensing module to respond to the signal transmitted by the transmitter module to produce an output response, and alarm means energizable in response to the production of the output response to produce an alarm condition, the transmitter module including a housing having a transmitter circuit, a source of power for the transmitter circuit and transmitter antenna means installed therein, the sensing module including a receiving circuit and associated sensing means located adjacent to the door opening to be monitored, and said means responsive to the opening of the door including means to enable the receiving circuit in the sensing module whereby the receiving circuit can respond to signals transmitted by the transmitter module to produce a response for energizing the alarm means. - View Dependent Claims (2, 3, 4, 5)
-
-
6. Means to monitor a doorway of a nursing home or other institution in order to produce an alarm when certain residnets try to pass therethrough comprising
a transmitter device including a mounting band therefor to be worn on the wrist of the residents to be monitored, said transmitter device having a housing with a modulating circuit, a transmitter radiator and a battery source located therein, a receiving device for mounting adjacent to the doorway including a housing and a receiving circuit therein, a signal sensor operatively connected to the receiving circuit, means for supplying power to the receiving circuit, means to enable the receiving circuit, and an output for the receiving circuit, an alarm producing device operatively connected to the output of the receiving circuit, and said means to enable including switch means operatively connected to the receiving circuit, said switch means being mounted in association with the doorway and having a first condition when the doorway is open and a second condition when the doorway is closed, the first condition of the switch means operating to enable the receiving circuit.
Specification