Electronic access control device
First Claim
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1. A method directed to an access control device for a vending machine cabinet, the access control device having a processor and a non-volatile memory for storing an access code, the method comprising the steps of:
- connecting to a communication port for accessing the non-volatile memory;
sending a read signal through the communication port to trigger the control device to transmit the access code stored in the non-volatile memory;
encrypting the access code;
receiving a transmission of the encrypted access code through the communication port in response to the read signal; and
, providing the access control device for accessing the vending machine cabinet by unlocking an outer door to the cabinet via a wireless signal.
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Accused Products
Abstract
An electronic access control device is disclosed comprising two microprocessors. The first microprocessor receives a wirelessly transmitted that is compared to a stored access code. If those two codes match, the first microprocessor transmits a special communication code to the second microprocessor. The second microprocessor opens the lock if the transmitted communication code matches a stored communication code.
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Citations
67 Claims
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1. A method directed to an access control device for a vending machine cabinet, the access control device having a processor and a non-volatile memory for storing an access code, the method comprising the steps of:
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connecting to a communication port for accessing the non-volatile memory;
sending a read signal through the communication port to trigger the control device to transmit the access code stored in the non-volatile memory;
encrypting the access code;
receiving a transmission of the encrypted access code through the communication port in response to the read signal; and
,providing the access control device for accessing the vending machine cabinet by unlocking an outer door to the cabinet via a wireless signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method directed to an electronic access control device for mounting to a vending machine cabinet, the access control device having a processor-based control circuit including a processor and a non-volatile memory for storing an access code for controlling operation of the access control device, the method comprising:
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installing the non-volatile memory in the processor-based control circuit;
sending a write signal through the communication port to the processor-based control circuit to indicate an access code is to be written into the non-volatile memory;
sending an encrypted access code to the access control device; and
writing an access code to the non-volatile memory through the communication port for unlocking an outer door of the vending machine cabinet via a wireless signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An electronic access control device for a vending machine cabinet comprising:
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a processor-based control circuit comprising a processor and a non-volatile memory;
a communication port connected to the processor-based control circuit; and
,the processor programmed to;
receive a write signal through the communication port;
receive an encrypted access code through the communication port in response to the write signal; and
, write the received access code into the non-volatile memory for unlocking an outer door of the vending machine cabinet via a wireless signal. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An electronic access control device for a vending machine cabinet comprising:
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a processor-based control circuit comprising a processor and a non-volatile memory containing an access code for unlocking an outer door to the vending machine cabinet; and
a communication port connected to the processor-based control circuit, the processor programmed to receive a read signal through the communication port, and in response to the read signal transmit the access code in the non-volatile memory out through the communication port, wherein said access code is encrypted. - View Dependent Claims (33, 34, 35, 36)
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37. An electronic access control device for a vending machine cabinet comprising:
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first and second controllers separated from each other and shielded from external access, the second controller comprising a memory for storing a communication code;
the first controller receiving an encrypted access signal from a key or keypad, and comparing an input access code within the encrypted access signal to a stored access code to determine if the input access code is valid;
the first controller sending the communication code to the second controller if the input access code is valid, wherein the second controller provides a signal to energize a circuit to unlock an outer door to the vending machine cabinet; and
,wherein the encrypted access signal is transmitted via a wireless signal from outside the vending machine and conveyed to inside the vending machine. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
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Specification