METHOD FOR AN ACQUISITION OF DATA FROM EXTERNAL DIGITAL SENSORS WITH AN RFID SMART TAG AND A TAG INTEGRATED CIRCUIT FOR CARRYING OUT SAID METHOD

摘要

A microprogram for performing communication between an RFID smart tag and external digital sensors (EDS1, EDSK) is loaded in a buffer (Bu). A hard-wired dedicated processing unit (DPU) of the tag reads, decodes and executes said micro-program through the digital communication interface (DCI). The sensor data is stored at beginning locations of said buffer (Bu), wherefrom they are read by an RFID interrogator. The tag functionality in an application is settable with the RFID interrogator to an automatic data logger or RFID wireless sensor. The tag is adjustable to various types of digital sensors from various manufacturers. A hardwired dedicated processing unit makes it possible that the tag saves more energy, has smaller dimensions and is faster.

主权项

1. A method for an acquisition of data from external digital sensors with an RFID smart tag,
according to which addresses of the external digital sensors (EDS1, . . . , EDSK), K being a natural number, enabling flags for pages of a microprogram, which is required and sufficient for executing communication between the RFID smart tag and said sensors, and a frequency of a clock signal intended for communicating of a digital communication interface (DCI) with said sensors are stored in a permanent memory (PM) of the tag, characterized in that said microprogram is stored in a tag memory (PM; Bu) being accessible by an RFID interrogator and that a tag's hard-wired dedicated processing unit (DPU) reads, decodes and executes said microprogram through the digital communication interface (DCI).