US 11,815,230 B2
Wireless communication system and communication method for cableless detection robot for gas pipeline
Xiaxi Li, Beijing (CN); Qingyu Wang, Beijing (CN); Linlin Xing, Beijing (CN); Zandong Han, Beijing (CN); Jiabao Zhang, Beijing (CN); Qiang Jin, Beijing (CN); Ruili Ma, Beijing (CN); Fan Yang, Beijing (CN); and Wenqing Tian, Beijing (CN)
Appl. No. 16/489,309
Filed by BEIJING GAS GROUP COMPANY LIMITED, Beijing (CN)
PCT Filed Mar. 12, 2019, PCT No. PCT/CN2019/077828
§ 371(c)(1), (2) Date Aug. 27, 2019,
PCT Pub. No. WO2019/179336, PCT Pub. Date Sep. 26, 2019.
Claims priority of application No. 201810233748.4 (CN), filed on Mar. 21, 2018.
Prior Publication US 2021/0356081 A1, Nov. 18, 2021
Int. Cl. F17D 5/00 (2006.01); F17D 5/02 (2006.01); F16L 55/40 (2006.01); F16L 55/38 (2006.01); G08C 17/02 (2006.01); H01Q 1/22 (2006.01); H01Q 3/02 (2006.01); H04B 7/26 (2006.01); H04Q 9/00 (2006.01); F16L 55/32 (2006.01); H04B 7/15 (2006.01); G01N 21/954 (2006.01)
CPC F17D 5/005 (2013.01) [F16L 55/32 (2013.01); F16L 55/40 (2013.01); F17D 5/02 (2013.01); G08C 17/02 (2013.01); H01Q 1/225 (2013.01); H01Q 3/02 (2013.01); H04B 7/2606 (2013.01); H04Q 9/00 (2013.01); G01N 2021/9544 (2013.01); H04B 7/15 (2013.01); H04Q 2209/40 (2013.01); H04Q 2209/50 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A wireless communication system for a cableless detection robot for a gas pipeline, comprising:
an antenna assembly (1);
a plurality of repeater assemblies (2); and
a repeater retracting device (3),
wherein the antenna assembly (1) is fixed to the gas pipeline and extends into the interior of the gas pipeline, and the repeater retracting device (3) is connected to the robot and configured to place one or more selected repeater assemblies from the plurality of repeater assemblies along the gas pipeline, the antenna assembly (1), the one or more placed repeater assemblies (2) and the robot are in communication through a wireless signal having a wavelength less than 3.41r, wherein r represents a radius of the gas pipeline.