ENVIRONMENT ANALYSIS SYSTEM AND METHOD FOR INDOOR WIRELESS LOCATION
First Claim
1. An environment analysis system for indoor wireless location by using locations of a plurality of access points, the system comprising:
- a first environment analysis tool for receiving indoor environment information containing location information of the access points for indoor wireless location, performing a simulation for calculating location accuracies for all locations in the entire indoor area under conditions of the indoor environment information received, performing a simulation for relocating and/or additionally installing the access points according to the location accuracies calculated, and displaying results of the simulations; and
a second environment analysis tool for receiving wireless communications signals from the access points, calculating distances from the second environment analysis tool to the access points by using the wireless communications signals received, calculating a location of the second environment analysis tool by using the distances calculated, calculating errors in the distances and in the location calculated by comparing them with actual values thereof, and providing the errors calculated to the first environment analysis tool, wherein the first environment analysis tool corrects errors in the simulations performed thereby by using the errors received from the second environment analysis tool, and then repeats the simulations and the displaying process.
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Accused Products
Abstract
An environment analysis system for indoor wireless location by using locations of a plurality of access points (AP) includes, a first environment analysis tool (10) for receiving indoor environment information for indoor wireless location, performing a simulation for calculating location accuracies, performing a simulation for relocating and/or additionally installing the access points (AP), and displaying results of the simulation; and a second environment analysis tool (20) for receiving wireless communications signals from the access points (AP), calculating distances from the second environment analysis tool (20) to the access points (AP), calculating a location of the second environment analysis tool (20), calculating errors in the distances and in the location calculated, and providing the errors calculated to the first environment analysis tool (10). The first environment analysis tool (10) corrects errors in the simulations performed thereby by using the errors received from the second environment analysis tool (20), and then repeats the simulations and the displaying process.
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Citations
7 Claims
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1. An environment analysis system for indoor wireless location by using locations of a plurality of access points, the system comprising:
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a first environment analysis tool for receiving indoor environment information containing location information of the access points for indoor wireless location, performing a simulation for calculating location accuracies for all locations in the entire indoor area under conditions of the indoor environment information received, performing a simulation for relocating and/or additionally installing the access points according to the location accuracies calculated, and displaying results of the simulations; and a second environment analysis tool for receiving wireless communications signals from the access points, calculating distances from the second environment analysis tool to the access points by using the wireless communications signals received, calculating a location of the second environment analysis tool by using the distances calculated, calculating errors in the distances and in the location calculated by comparing them with actual values thereof, and providing the errors calculated to the first environment analysis tool, wherein the first environment analysis tool corrects errors in the simulations performed thereby by using the errors received from the second environment analysis tool, and then repeats the simulations and the displaying process. - View Dependent Claims (2, 3, 4, 5)
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6. An environment analysis method for indoor wireless location by using locations of a plurality of access points, the method comprising the steps of:
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receiving indoor environment information for indoor wireless location; performing a simulation for calculating location accuracies for all locations in the entire indoor area under conditions of the indoor environment information received; performing a simulation for relocating and/or additionally installing the access points according to the location accuracies calculated; displaying simulation results; calculating distances from a modem to the access points and a location of the modem by using wireless communications signals received therethrough from the access points; calculating errors in the distances and in the location calculated by comparing them with actual values thereof; and correcting errors in the simulations by using the errors calculated. - View Dependent Claims (7)
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Specification