What is the EPCglobal network service and how is it used with RFID?
What will be an ideal response?
To use barcodes, a business has to record in a database the item's UPC (bar code), the company's internal product number (SKU), a product description, the manufacturer's name, the price, and the quantity of items in stock. It then has to cross-reference the bar code and SKU so that this information can be accessed by the barcode readers at the cash register. With RFID, because the EPC already contains a reference to the manufacturer along with a product code, the need for manually entering data for cross-referencing is reduced; the potential for introducing errors when entering this information into the database is lessened as well.
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The sensor that will MOST-Likely determine the speed of the engine and the position of the crankshaft is the:
A. EI sensor B. DIS sensor C. CKP sensor D. Hall-effect sensor
The term "M-ary" in M-ary modulation derives from the word ___________
A. binary B. baud C. bit D. bandwidth
When preparing weld coupons for V-groove welds with backing, cut the metal backing strips so that they are
at least _____. a. 1? × 3? (25.4 mm × 76.2 mm) b. 1? × 8? (25.4 mm × 203.2 mm) c. 2? × 8? (50.8 mm × 203.2 mm) d. 3? × 8? (76.2 mm × 203.2 mm
In a parallel circuit, ET = 240 V, R = 47 k?, and XL = 50 k?. What is the reactive power?
A. 0.54 VARs B. 0.89 VARs C. 1.15 VARs D. 1.23 VARs