Enhanced Trilateration Indoor Positioning Technology Based on Bluetooth Low Energy iBeacon Communication

• Main Authors: CHENG, MIN-HSIEN, 鄭旻弦
• Other Authors: CHEN, SHINN-HORNG
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/e44ms9

碩士 === 國立高雄科技大學 === 機械工程系 === 107 === As improving of technology, people expect to live more conveniently and comfortably, and the demand for positioning is also increasing. In addition to factories, business equipment, and warehousing, applied to medical development is coordinated through positioning. In order to achieve the characteristics of light weight, low price, high precision, and immediate use through existing devices, this study combines the concepts of triangulation and fingerprint database. Taking advantage of them and filtering the signals by standard deviation, this study completes the positioning method with an accuracy up to 0.5 meters at a bit cost by using a computer and two Raspberry Pi. This new positioning method divides the area that needs to be positioned by rectangles or triangles with a best length of 8 meters, and each area chooses one side as the installation place of positioning base station. Measuring the loss value on the three or four end points of each area, a small database of the region is established by them. Using all of databases, the coordinates of the target will be estimated by the positioning method. The experimental results show that the new positioning method, as expected, has an average error of about 0.508 meters and a maximum error of 0.988 meters, which is a positioning method that can be easily developed and used in various environments.