# US 2013/0154802 A1 · Method and apparatus for updating a central plan for an area based on a location of a plurality of radio frequency identification readers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0154802 A1 - Document ID: US20130154802A1 - Status: Published application - Kind: A1 - Application number: 13/329,383 - Filed: 2011-12-19 - Published: 2013-06-20 - Earliest claimed: 2011-12-19 - Assignees: Symbol Technologies, Inc. - Inventors: Michael O'Haire; Thomas E. Wulff - Web page: https://patentgrep.com/patent/US20130154802A1 ## CPC - G01S 5/18: using ultrasonic, sonic or infrasonic waves - G01S 13/751: {wherein the responder or reflector radiates a coded signal} - G06K 7/10009: {sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves} - G01S 2013/468: {by Triangulation, i.e. two antennas or two sensors determine separately the bearing, direction or angle to a target, whereby with the knowledge of the baseline length, the position data of the target is determined} - G01S 2015/465: {by Trilateration, i.e. two transducers determine separately the distance to a target, whereby with the knowledge of the baseline length, i.e. the distance between the transducers, the position data of the target is determined} - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS ## Abstract A method and apparatus updates a central plan for an area based on the location of a plurality of radio frequency identification (RFID) readers by identifying the location of each of the RFID readers using an associated location mechanism. A read zone coverage area for each of the RFID readers is identified. The central plan is updated with the position and the read zone coverage area relative to the position for each of the RFID readers. A status of read zone coverage is determined for the area based on the read zone coverage areas on the central plan for all of the RFID readers in the plurality of RFID readers, wherein a report is provided based on the status of read zone coverage for the area. ## Claims ### Claim 1 A method for updating a central plan for an area by an updating device, wherein the updating is based on a location of a plurality of radio frequency identification (RFID) readers, the method comprising: identifying a location of each of the RFID readers in the plurality of RFID readers, wherein the location of each of the RFID readers is determined using a location mechanism; identifying a read zone coverage area for each of the RFID readers in the plurality of RFID readers; updating the central plan, using a processing device within the updating device, with the position and the read zone coverage area relative to the position for each of the RFID readers in the plurality of RFID readers; and determining a status of read zone coverage for the area based on the read zone coverage areas on the central plan for all of the RFID readers in the plurality of RFID readers, wherein a report is provided based on the status of read zone coverage for the area. ### Claim 2 (depends on 1) The method of claim 1, wherein the report identifies a read zone coverage corrective action for the area. ### Claim 3 (depends on 1) The method of claim 1, wherein the location of each RFID reader is determined using ultrasonic technology. ### Claim 4 (depends on 4) The method of claim 4, wherein the location of each RFID reader is determined using trilateration or quadlateration techniques. ### Claim 5 (depends on 1) The method of claim 1, wherein the location of each RFID reader is determined using one of: Time Difference of Arrival computations, absolute measurements of time-of-flight, triangulation, radio frequency energy, or light energy. ### Claim 6 (depends on 1) The method of claim 1, wherein the central plan is a planogram. ### Claim 7 (depends on 1) The method of claim 1, wherein the central plan comprises one of: a floor plan; a map or an internal plan of a building. ### Claim 8 An apparatus for updating a planogram for an area based on a location of a plurality of radio frequency identification (RFID) readers, the apparatus comprising: a processing device configured to: identify a location of each of the RFID readers; identify a read zone coverage area for each of the RFID readers in the plurality of RFID readers; update the planogram with the position and the read zone coverage area relative to the position for each of the RFID readers in the plurality of RFID readers; and generate a report of a status of read zone coverage for the area based on the read zone coverage areas on the planogram for all of the RFID readers in the plurality of RFID readers; and an interface configured to provide the report. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein the interface comprises a user interface configured to provide the report to a user of the apparatus. ### Claim 10 (depends on 8) The apparatus of claim 8, wherein interface comprises a network interface configured to provide the report to a remote monitoring device or to a remote storage device. ### Claim 11 (depends on 8) The apparatus of claim 8, wherein the apparatus further comprises a location device configured to determine the location of at least one of the RFID readers. ### Claim 12 (depends on 11) The apparatus of claim 11, wherein the location device determines the location of the at least one RFID reader using ultrasonic technology. ### Claim 13 (depends on 11) The apparatus of claim 11, wherein the location device determines the location of the at least one RFID reader using one of: Time Difference of Arrival computations, absolute measurements of time-of-flight, triangulation, radio frequency energy, or light energy. ### Claim 14 A non-transient computer readable storage medium having computer-readable code stored thereon for programming a computer to perform a method for updating a central plan based on a location of a plurality of radio frequency identification (RFID) readers, the method comprising identifying a location of each of the RFID readers in the plurality of RFID readers; identifying a read zone coverage area for each of the RFID readers in the plurality; updating the central plan with the position and the read zone coverage area relative to the position for each of the RFID readers in the plurality; determining a status of read zone coverage for the area based on the read zone coverage areas on the central plan for all of the RFID readers in the plurality of RFID readers; and generating a report based on the status of read zone coverage for the area. ### Claim 15 (depends on 14) The computer readable storage medium claim 14, the method further comprising identifying read zone coverage gaps or overlaps for the area, and wherein the report identifies corrective action to address the read zone coverage gaps or overlaps. ### Claim 16 (depends on 14) The computer readable storage medium of claim 14, the method further comprising determining the location of each of the RFID readers using ultrasonic technology. ### Claim 17 (depends on 16) The computer readable storage medium of claim 16, wherein the ultrasonic technology uses trilateration or quadlateration. ### Claim 18 (depends on 14) The computer readable storage medium of claim 14, the method further comprising determining the location of each RFID reader using one of: Time Difference of Arrival computations, absolute measurements of time-of-flight, triangulation, radio frequency energy, or light energy. ### Claim 19 (depends on 13) The computer readable storage medium of claim 13, wherein updating the central plan comprises updating a planogram, a floor plan, a map or an internal plan of a building.