SYSTEM AND METHOD FOR WIRELESS INDOOR LOCALIZATION BASED ON INERTIAL MEASUREMENT UNIT AND MAP INFORMATION
First Claim
1. A system of dynamical correction on wireless signal strength, configured to operate with at least a mobile wireless signal transceiving device with computing capability and wireless signal transceiving capability and a wireless signal observation device, the system comprising:
- at least two fixed wireless signal transceiving devices, configured to provide at least a kind of wireless signal to a mobile wireless signal transceiving device and a wireless signal observation device, and to receive at least a wireless signal of the mobile wireless signal transceiving device;
at least a wireless signal observation device, configured to observe signal strength of at least a wireless signal transmitted by the fixed signal transceiving devices;
at least a training database, configured to store at least a standard wireless signal strength; and
at least a computing core unit, configured to perform dynamic correction on signal strength based on the wireless signal strength received by the mobile wireless signal transceiving device, the wireless signal strength observed by the wireless signal observation device before positioning and during positioning, and the standard wireless signal strength being recorded in the training database.
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Accused Products
Abstract
An embodiment disclosing a wireless indoor localization system based on inertial measurement unit (IMU) and map information, including at least a mobile wireless signal transceiving device able to compute, with each including at least a wireless signal transceiver and at least an IMU for collecting environmental information measured by mobile device; at least two fixed wireless signal transceiving devices, configured to provide wireless signal for positioning or wireless signal observation; at least a wireless signal observation device, configured to observe signal strength of fixed signal transceiving devices; at least a training database, configured to store at least a standard comparison information; at least a map information, including indoor spatial description, configured to assist in determining feasibility of movement at continuous time; and at least a computing core unit, configured to compute positioning result based on collected information during training and positioning phases, and comparison with map information.
52 Citations
25 Claims
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1. A system of dynamical correction on wireless signal strength, configured to operate with at least a mobile wireless signal transceiving device with computing capability and wireless signal transceiving capability and a wireless signal observation device, the system comprising:
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at least two fixed wireless signal transceiving devices, configured to provide at least a kind of wireless signal to a mobile wireless signal transceiving device and a wireless signal observation device, and to receive at least a wireless signal of the mobile wireless signal transceiving device; at least a wireless signal observation device, configured to observe signal strength of at least a wireless signal transmitted by the fixed signal transceiving devices; at least a training database, configured to store at least a standard wireless signal strength; and at least a computing core unit, configured to perform dynamic correction on signal strength based on the wireless signal strength received by the mobile wireless signal transceiving device, the wireless signal strength observed by the wireless signal observation device before positioning and during positioning, and the standard wireless signal strength being recorded in the training database. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of dynamic correction on wireless signal strength, comprising:
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before positioning, at least a wireless signal observation device observing at least a wireless signal transmitted by a fixed wireless signal transceiving device, and storing at least an observation result into a training database; and when performing positioning, based on at least an observation result of the wireless signal observation device and at least an observation result stored in the training database, a computing core unit performing dynamic correction on at least a wireless signal strength measured by a mobile wireless signal transceiving device or on at least a wireless signal strength stored in the training database. - View Dependent Claims (8)
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9. A system for wireless indoor localization based on inertial measurement unit (IMU) and map information, configured to operate with at least a mobile wireless signal transceiving device with computing capability and wireless signal transceiving capability, the system comprising:
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at least two fixed wireless signal transceiving devices, configured to provide at least a kind of wireless signal to a mobile wireless signal transceiving device and a wireless signal observation device, and to receive at least a wireless signal of the mobile wireless signal transceiving device and at least a measured signal; at least a training database, configured to store at least a standard matching information; at least a map information describing an indoor space; and at least a computing core unit, configured to compute a positioning result based on the wireless signal strength, the measured signal of IMU, the standard matching information recorded in the training database, and the map information. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for wireless indoor localization based on inertial measurement unit (IMU) and map information, configured to operate with at least a mobile wireless signal transceiving device with computing capability and wireless signal transceiving capability, the method comprising:
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collecting at least a wireless signal and at least an IMU signal of the mobile wireless signal transceiving device at least a training location, and storing the at least a wireless signal and the at least an IMU signal in a training database; receiving at least a wireless signal and at least an IMU signal of the mobile wireless signal transceiving device at a location and transmitting to a computing core unit; and based on the received wireless signal and IMU signal and the wireless signal and IMU signal stored in the training database, the computing core unit performing sequentially a displacement detection, an orientation correction and a positioning computation to obtain a result of the location. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification