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1. (WO2018103263) METHOD AND APPARATUS FOR FREE SPACE OPTIC COMMUNICATION BETWEEN TRAIN AND GROUND BASE STATION
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Pub. No.: WO/2018/103263 International Application No.: PCT/CN2017/083416
Publication Date: 14.06.2018 International Filing Date: 08.05.2017
IPC:
H04B 10/11 (2013.01) ,B61L 27/00 (2006.01) ,B61L 25/02 (2006.01) ,B61L 3/06 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
10
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
11
Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
B PERFORMING OPERATIONS; TRANSPORTING
61
RAILWAYS
L
GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
27
Central traffic control systems
B PERFORMING OPERATIONS; TRANSPORTING
61
RAILWAYS
L
GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
25
Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
02
Indicating or recording positions or identities of vehicles or vehicle trains
B PERFORMING OPERATIONS; TRANSPORTING
61
RAILWAYS
L
GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
3
Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal
02
at selected places along the route, e.g. intermittent control
06
controlling by electromagnetic or particle radiation, e.g. by light beam
Applicants:
中车株洲电力机车研究所有限公司 CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD. [CN/CN]; 中国湖南省株洲市 石峰区时代路169号 No. 169 Shidai Road, Shifeng District Zhuzhou, Hunan 412001, CN
Inventors:
冯江华 FENG, Jianghua; CN
唐军 TANG, Jun; CN
张泰然 ZHANG, Tairan; CN
王大君 WANG, Dajun; CN
蒋国涛 JIANG, Guotao; CN
陆琦 LU, Qi; CN
Agent:
北京集佳知识产权代理有限公司 UNITALEN ATTORNEYS AT LAW; 中国北京市 朝阳区建国门外大街22号赛特广场7层 7th Floor, Scitech Place No. 22, Jian Guo Men Wai Ave. Chao Yang District Beijing 100004, CN
Priority Data:
201611122418.508.12.2016CN
Title (EN) METHOD AND APPARATUS FOR FREE SPACE OPTIC COMMUNICATION BETWEEN TRAIN AND GROUND BASE STATION
(FR) PROCÉDÉ ET APPAREIL DE COMMUNICATION OPTIQUE EN ESPACE LIBRE ENTRE UN TRAIN ET UNE STATION DE BASE AU SOL
(ZH) 一种列车与地面基站的自由空间光通信方法及装置
Abstract:
(EN) A method and apparatus for free space optic communication between a train and a ground base station, the method comprising the following steps: obtaining the speed and position of a train at a current moment in the traveling course of the train; querying attribute information of a track where the train is currently located in a track database obtained in advance; estimating the position of free space optic (FSO) equipment of the train at the next moment according to the speed of the train at the current moment, the position of the train at the current moment and the attribute information of the track where the train is currently located; and adjusting a lens angle of FSO equipment of a corresponding ground base station so that the FSO equipment of the ground base station and the FSO equipment of the train stay within the light beam range of each other. Applying the method and apparatus provided by the embodiments of the present application may shorten acquisition, tracking, pointing (ATP) time consumption of a train and a ground station and implement highly reliable FSO communication for a long time between the train and the ground base station.
(FR) L'invention concerne un procédé et un appareil de communication optique en espace libre entre un train et une station de base au sol, le procédé comprenant les étapes suivantes : obtention de la vitesse et de la position d'un train à un moment actuel dans le parcours de déplacement du train ; interrogation d'informations d'attribut d'une voie où se trouve actuellement le train dans une base de données de voies obtenue à l'avance ; estimation de la position de l'équipement optique en espace libre (FSO) du train au moment suivant en fonction de la vitesse du train au moment actuel, de la position du train au moment actuel et des informations d'attribut de la voie où se trouve actuellement le train ; et ajustement d'un angle de lentille de l'équipement FSO d'une station de base au sol correspondante de telle sorte que l'équipement FSO de la station de base au sol et l'équipement FSO du train restent à l'intérieur de la plage de leurs faisceaux lumineux mutuels. L'application du procédé et de l'appareil selon les modes de réalisation de la présente invention peut raccourcir le temps nécessaire pour l'acquisition, le suivi, le pointage (ATP) d'un train et d'une station au sol et la mise en œuvre d'une communication FSO extrêmement fiable pendant une longue durée entre le train et la station de base au sol.
(ZH) 一种列车与地面基站的自由空间光通信方法及装置,该方法包括以下步骤:在列车行进过程中,获得列车当前时刻的运行速度和位置;在预先获得的轨道数据库中查询列车当前所在轨道的属性信息;根据列车当前时刻的运行速度、列车当前时刻的位置及列车当前所在轨道的属性信息,预估列车的FSO设备下一时刻的位置;调整相应地面基站的FSO设备的镜头角度,以使地面基站的FSO设备与列车的FSO设备保持在彼此光束范围内。应用本申请实施例所提供的方法及装置,可以缩短列车与地面基站的ATP耗时,使得列车与地面基站间实现长时间、高可靠的FSO通信。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)