Patent ID: 9007181
Filing Date: 2015-04-14
Classification: G06K,G08B

Abstract:
1. A method of monitoring wireless node devices in an electronic article surveillance (“EAS”) system, the method comprising: polling at least one sensor device in communication with at least one wireless node device for status information, the polling configured to cause the at least one sensor device to transmit a response message having a transmission frame structure including a plurality of fields corresponding to a first communication layer and a second communication layer different from the first communication layer, the response message including sensor status information generated by the at least one sensor node; receiving a modified response message, the modified response message containing at least one additional field embedded within the plurality of fields of the response message, the at least one additional field including wireless node status information and corresponding to a third communication layer different from the first and second communication layers; and extracting the wireless node status information from the modified response message.