Manipulation detection system for removable money cassettes for use in automated teller machines
View Patent ↗A manipulation detection system for removable money cassettes for use in automated teller machines is described that makes it possible to discriminate between unauthorized opening of the money cassette outside the automated teller machine and authorized opening of the money cassette inside the automated teller machine.
1. A manipulation detection system for removable money cassettes used in automated teller machines, comprising:
the money cassette having a lockable cash input/output slot for the deposit and/or withdrawal of cash in the operating position in the automated teller machine,
the cash input/output slot being opened automatically when the money cassette is inserted into the automated teller machine even before said cassette has reached its operating position,
wherein a notice of manipulation is generated at the money cassette by way of a sensor when the input/output slot is opened,
the money cassette having a first switch that is actuated automatically when the money cassette is inserted into the automated teller machine,
the automated teller machine having a second switch that is similarly actuated automatically when the money cassette is inserted into the automated teller machine,
wherein, when the two switches are actuated, a timer in the money cassette and a timer in the automated teller machine respectively are started,
the two timers being stopped automatically when the money cassette has reached its operating position,
an evaluation and control device in the automated teller machine that compares the timer status of the timer in the money cassette with the timer status of the timer in the automated teller machine, wherein the notice of manipulation at the money cassette is canceled by a signal from the automated teller machine upon a positive result of the comparison.
2. The manipulation detection system of claim 1 , wherein the first switch, which is located in the money cassette and the second switch, which is located in the automatic banking machine, are actuated simultaneously when the money cassette is inserted.
3. The manipulation system from of claim 1 , wherein the first switch, which is located in the money cassette, and the second switch, which is located in the automated teller machine, are actuated with a time delay when the money cassette is inserted.
4. The manipulation system of claim 3 , wherein a resistance to insertion must be overcome when the money cassette is inserted before the two switches are actuated.
5. The manipulation system of claim 1 , wherein the sensor that generates a manipulation notice at the money cassette when the cash input/output slot is opened is used as a switch to actuate the timer in the money cassette.
6. The manipulation detection system of claim 1 , wherein the automated teller machine has an electrical plug to make contact with a mating electrical plug on the money cassette when in the operating position, wherein the two timers are stopped automatically when contact between the two plugs has been established.
7. The manipulation detection system of claim 1 , wherein the manipulation notice is canceled if the time period between the start of the first timer and the stop of the first timer is the same as the time period between the start of the second timer and the stop of the second timer, within a specified tolerance.
8. The manipulation detection system of claim 1 , wherein the manipulation notice is an optical and/or acoustic signal at the money cassette.
9. The manipulation detection system of claim 1 , wherein the manipulation notice is an entry in a manipulation storage device in the money cassette.
10. The manipulation detection system of claim 1 , wherein the automated teller machine has two or more racks to position a money cassette, where a switch is assigned to each rack that is actuated automatically when a money cassette is inserted into the automated teller machine in order to start a timer in the automated teller machine, where an electrical plug is assigned to each rack for completing contact with a mating electrical plug on a money cassette in the operating position in order to stop a timer in the automated teller machine when said cassette reaches the operating position.
11. The manipulation detection system of claim 10 , wherein a separate timer is provided in the automated teller machine for each rack.
12. The manipulation detection system of claim 11 , wherein a separate evaluation and control unit is provided in the automated teller machine for each rack which compares the status of the timer assigned to the rack with the status of the timer for the money cassette positioned in the rack, where the notice of manipulation at the money cassette is canceled through a signal from the money cassette in the event of a positive result from the comparison.
13. The manipulation detection system of claim 10 , wherein a central evaluation and control unit is provided in the automated teller machine for all the timers assigned to the different racks and for all the timers for the money cassettes positioned in the racks.
14. The manipulation detection system of claim 10 , wherein a central timer is provided in the automated teller machine with which
a) actuation of the different switches assigned to the racks is recorded as a starting signal,
b) attainment of the operating position of the money cassettes positioned in the racks is recorded as a stop signal.