RF channel linking method and system
First Claim
1. In an RF access control system, a method for establishing a communication link on an RF channel between a first transceiver and a second transceiver of said RF access control system, said method comprising:
- transmitting an RF signal on a first RF channel from a first transceiver to a second transceiver at a first RF power level that is below a second RF power level, wherein said second RF power level is used during normal operation of said RF access control system;
receiving a pre-determined number of bits at said second transceiver;
generating an error count corresponding to the number of errors received in said pre-determined number of bits;
comparing said error count to a pre-determined error threshold; and
determining said RF channel to be a valid communication link when said error count is less than said predetermined threshold.
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Accused Products
Abstract
In an RF access control system, a method for establishing a reliable RF signal link between points of the RF access control system. A first RF signal from a first point of the system is transmitted to a second point of the system at a first RF power level that is below a second RF power level used during normal operation of the RF access control system. Once the second point acknowledges the RF signal from the first point, then a pre-determined number of RF packets are transmitted and received back and forth between the first point and the second point at the first RF power level. An RF packet error count is generated in response to the transmitting and receiving of the pre-determined number of RF packets. If this error count is below a certain threshold value, then an indication is provided to an installer of the RF access control system of an RF channel number to be used by the RF access control system during normal operation.
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Citations
20 Claims
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1. In an RF access control system, a method for establishing a communication link on an RF channel between a first transceiver and a second transceiver of said RF access control system, said method comprising:
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transmitting an RF signal on a first RF channel from a first transceiver to a second transceiver at a first RF power level that is below a second RF power level, wherein said second RF power level is used during normal operation of said RF access control system;
receiving a pre-determined number of bits at said second transceiver;
generating an error count corresponding to the number of errors received in said pre-determined number of bits;
comparing said error count to a pre-determined error threshold; and
determining said RF channel to be a valid communication link when said error count is less than said predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An access control system having a wireless communication link, said system including:
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a first transceiver transmitting a wireless signal composed of a predetermined number of bits on a first channel to said second receiver, wherein said wireless signal is transmitted at a power level less then power level employed during regular data communication;
a second transceiver receiving said wireless signal and generating an error count corresponding to the number of erroneous bits received in said wireless signal;
a processor communicating with said second transceiver and comparing said error count to a pre-determined error threshold, said processor determining said channel to be a valid communication link when said error count is less than said predetermined threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification