RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags

A method of distributing a plurality of products from an area, the method comprising:

• providing each product with a radio frequency identification tag;
• providing at least one antenna, the at least one antenna being configured to emit a signal at at least one predefined frequency and generate at least one electromagnetic field within the area;
• positioning the plurality of products within the area;
• reading identification information;
• permitting access to the area if the identification information read is authenticated;
• detecting an end of access to the area;
• performing a first scan of the area using the at least one antenna, the scan generating a first result;
• comparing the first result to a predetermined integrity level;
• and
• performing one or more subsequent scans if the first result does not equal or exceed the predetermined integrity level.

A method of distributing a plurality of products from an area, the method comprising:

• providing each product with a radio frequency identification tag;
• positioning an antenna;
• positioning the plurality of products within the area;
• performing plural scans of the area using the antenna, the scans generating a first result based on output of the plural scans;
• comparing the first result to a predetermined integrity level;
• performing a subsequent scan if the first result does not equal or exceed the predetermined integrity level;
• and
• creating a superset of all tags read during a plurality of scans,
• wherein said step of generating a first result based on output of the plural scans comprises (a) determining the number of scans in which a list of tags was read, and (b) calculating the percentage of the plural scans in which the list of tags was read by dividing the number of scans in which the list of tags was read by the number of scans of the plural scans.

A method of distributing a plurality of products from an area, the method comprising:

• providing each product with a radio frequency identification tag;
• providing at least one RFID antenna;
• positioning the plurality of products within the area;
• one of (a) obtaining identification information from a user, the identification information being biometric identification information and (b) obtaining identification information from a user's RFID badge;
• permitting access to the area if the identification information obtained is authenticated;
• detecting an end of access to the area by detecting closing of a door associated with the area;
• performing RFID scanning of the area in response to detection of the end of access to the area,
• wherein the RFID scanning employs an integrity algorithm that is based on all of (a) statistical information, (b) historical information, and (c) delay data.