VehLoc：基于低功耗蓝牙多信道RSSI值的车内高精度定位方法

doi:10.11959/j.issn.1000-436x.2018280

Abstract

Abstract:

High precision in-vehicle positioning is the basis of providing smart in-vehicle service, passengers' behavior analysis and other issues, and has important practical value. The RSSI (received signal strength indicator) values of BLE (bluetooth low energy) can be used to do analysis and computation in location system. To deal with the problem that RSSI is vulnerable to environmental issues, an in-vehicle location method called VehLoc based on BLE multi-channel multi-RSSI values was proposed. By using a plurality of Bluetooth transmitters, the location of the receiving terminals in the vehicle was analyzed by combining the coarse, fine classifier and distribution fitting of the user's RSSI values in different channels. The experimental results show that the average accuracy of VehLoc in the five main positions in-vehicle classification can reach 90%.

Key words: BLE, multi-channel, RSSI, classification, fitting

CLC Number:

TP393

Ze ZHAO,Yuan GAO,Li CUI. VehLoc: an in-vehicle high-precision location method based on BLE multi-channel RSSI values[J]. Journal on Communications, 2018, 39(12): 47-59.

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References 21

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频率/MHz	信道号	信道类型
2 402	37	广播信道
2 404~2 424	0~10	数据信道
2 426	38	广播信道
2 428~2 478	11~36	数据信道
2 480	39	广播信道

位置	α	β
主驾驶位 beacon1 信道37	15.213 2	0.208 5
主驾驶位 beacon2 信道38	20.560 4	0.225 7
主驾驶位 beacon3 信道39	43.441 5	0.148 8
副驾驶位 beacon1 信道38	4.368 4	0.695 4
副驾驶位 beacon2 信道39	24.916 8	0.257 7
副驾驶位 beacon3 信道37	10.677 5	0.104 2
二排左 beacon1 信道37	21.445 9	0.01
二排左 beacon2 信道38	6.829 5	0.208 1
二排左 beacon3 信道39	0.070 8	1.283 3
二排中 beacon1 信道39	6.937 1	0.488 8
二排中 beacon2 信道37	0.803 2	0.2062 2
二排中 beacon3 信道38	13.240 7	0.635 5
二排右 beacon1 信道38	5.214 4	0.536 2
二排右 beacon2 信道39	16.003 8	0.384 9
二排右 beacon3 信道38	8.585 2	0.164

位置	α	β
主驾驶位beacon1信道37	8.065 983 253	1.931 763 595
主驾驶位beacon1信道38	16.287 462 45	1.510 071 822
一排中间beacon2信道37	17.183 592 19	0.577 639 752
一排中间beacon2信道38	4.475 189 857	1.656 595 694
副驾驶位beacon3信道38	7.901 181 567	0.495 126 948
副驾驶位beacon3信道39	22.780 369 24	0.192 955 801
二排左beacon1信道37	12.665 391 11	0.2693 475 77
二排左beacon1信道38	4.412 763 187	0.283 986 36
二排中间beacon2信道37	17.183 592 19	0.5776 397 52
二排中间beacon2信道38	4.4751 898 57	1.656 595 694
二排右 beacon3信道38	2.869 602 163	1.217 227 179
二排右 beacon3信道39	5.281 6098 57	0.516 007 844

位置	α	β
主驾驶位beacon1 信道37	7.874 527 539	1.304 949 664
主驾驶位beacon1 信道38	14.823 689 52	1.604 142 498
一排中间beacon2 信道37	17.183 592 19	0.577 639 752
一排中间beacon2 信道38	4.475 189 857	1.656 595 694
副驾驶位beacon3 信道38	8.679 653 68	0.528 947 368
二排左 beacon1 信道37	15.085 977 22	0.292 944 552
二排左 beacon1 信道38	4.3777 146 49	0.287 379 287
二排中间beacon2 信道37	18.484 155 97	0.523 964 383
二排中间beacon2 信道38	7.0527 144 62	1.003 690 167
二排右 beacon3 信道38	3.0936 665 69	1.0230 399 87

VehLoc: an in-vehicle high-precision location method based on BLE multi-channel RSSI values

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