COMPARTMENT SECURITY SYSTEM
First Claim
1. A security system for a compartment having a closure member, which security system is arranged to permit sealing of the closure member and to monitor a sealed status thereof, the security system comprising:
- a detector for sensing opening and closing movement of the closure member and providing a detector output;
a first input device providing an electrical first device output, the first input device being operable solely by means of an authorized user and having a first function for signifying sealing of the compartment;
a second input device providing an electrical second device output, the second input device being operable any person and having a second function for checking the sealed status of the compartment;
an indicator having at least first and second states indicative of whether or not unauthorized access has been made to the compartment once sealed; and
an access verification controller arranged to control the indicator depending upon said outputs received from the detector and the input devices.
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Accused Products
Abstract
A security system for a goods-carrying compartment such as of a vehicle is arranged to indicate the sealed status of an access door 40 to the compartment. Following loading of the compartment, the system is used to seal the door closed by passing a security cable 34 through components 46, 50 of a lock mechanism associated with that door. The cable 34 is re-entered into the system housing 30 and then, using a key inserted into a security switch 14, the system is activated to show proper sealing. An interrogation switch 12 may be pressed to illuminate LED 22 if the door 40 has not been opened following sealing or LED 24 if the door has been opened and not properly re-sealed with a key. Two different keys may be provided, one for use with the initial sealing of the compartment and the other for re-sealing by an authorized person such as a driver, so long as the compartment was opened for a legitimate purpose on route between dispatch and the ultimate destination.
21 Citations
22 Claims
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1. A security system for a compartment having a closure member, which security system is arranged to permit sealing of the closure member and to monitor a sealed status thereof, the security system comprising:
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a detector for sensing opening and closing movement of the closure member and providing a detector output;
a first input device providing an electrical first device output, the first input device being operable solely by means of an authorized user and having a first function for signifying sealing of the compartment;
a second input device providing an electrical second device output, the second input device being operable any person and having a second function for checking the sealed status of the compartment;
an indicator having at least first and second states indicative of whether or not unauthorized access has been made to the compartment once sealed; and
an access verification controller arranged to control the indicator depending upon said outputs received from the detector and the input devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A security system for a compartment having a closure member, which security system is arranged to permit sealing of the closure member and to monitor a sealed status thereof, the security system comprising:
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a detector for sensing opening and closing movement of the closure member and providing a detector output;
a first input device providing an electrical first device output, the first input device being operable solely by means of an authorized user and having a first function for signifying sealing of the compartment;
a second input device providing an electrical second device output, the second input device being operable any user and having a second function for checking the sealed status of the compartment;
an indicator having-first, second and third states indicative of whether unauthorized or authorized access has been made to the compartment once sealed; and
an access verification controller arranged to control the indicator depending upon said outputs received from the detector and the input devices, whereby the first state of the indicator corresponds to the closure member having been sealed closed by an authorized person and the compartment has not been opened thereafter, the second state of the indicator corresponds to the closure member having been opened at least once following sealing by an authorized user and then resealed by an authorized user, and the third state of the indicator corresponds to the closure member having been opened following sealing by an authorized user and then sealed again other than by an authorized user. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification