Method for verifying and/or detecting tampering
There is disclosed method of shipment verification and/or tamper detection, wherein a purchaser generates an ordering document such as a purchase order RFID-encoded with data identifying items on the order. The supplier gathers the items into a package or packages for the shipment and RFID encodes the shipment with both data relating to the items ordered and to the shipping package weight. When the shipment arrives at the customer's location, the customer decodes the RFID package transponder and compares the items ordered with the items received and/or compares the decoded shipping package weight with the actual weight of the shipment and if there is an unallowable discrepancy in either or both, the customer is on notice that the shipment may be erroneous.
1. Method of verification, comprising:
(a) providing a product ordering document listing one or more products and having an RFID transponder encoded with data representative of the listed product(s),
(b) ordering the product(s) from the supplier,
(c) providing a data-encoded RFID transponder on the product(s) or on the packaging for the product(s) to be shipped to the customer,
(d) shipping the product(s) to the customer,
(e) decoding the RFID transponder on the ordering document,
(f) decoding the RFID transponder on the received product(s) or packaging, and
(g) comparing the decoded data from the ordering document and the decoded data from the product(s) or packaging to verify whether or not such data correspond.
2. Method as defined in claim 1 , wherein (a) includes:
(h) preparing an RFID label, and
(i) applying the RFID label to the ordering document.
3. Method as defined in claim 1 , wherein (c) includes the supplier:
(h) applying an RFID encoded label to the product(s) or the packaging.
4. Method of verification, comprising:
(a) providing a product ordering document listing one or more products and having an RFID transponder encoded with data representative of the listed product(s),
(b) ordering the products from the supplier,
(c) providing an RFID transponder for the product(s) or its packaging encoded with the product data and the shipping package weight,
(d) shipping the packaged product(s) to a customer,
(e) weighing the packaged product after delivery to the customer,
(f) decoding the transponder's product data and the shipping package weight,
(g) decoding the transponder on the ordering document,
(h) comparing the decoded data from the ordering document and the decoded data for the product(s) or the packaging to verify whether or not such ordering data correspond, and
(i) comparing the shipping package weight with the received package weight to indicate tampering when the difference between the shipping package weight and the received package weight is outside allowable limits.
5. Method as defined in claim 4 , wherein when either (h) or (i) do not compare favorably the shipment is deemed to have been flawed.