US 12,262,290 B2
Building stress balance monitoring system of passive sensor network
Zumin Wang, Dalian (CN); Zupeng Zheng, Dalian (CN); Changqing Ji, Dalian (CN); and Jing Qin, Dalian (CN)
Assigned to DALIAN UNIVERSITY, Dalian (CN)
Appl. No. 17/773,869
Filed by DALIAN UNIVERSITY, Dalian (CN)
PCT Filed Nov. 4, 2019, PCT No. PCT/CN2019/115238
§ 371(c)(1), (2) Date May 3, 2022,
PCT Pub. No. WO2021/087641, PCT Pub. Date May 14, 2021.
Prior Publication US 2022/0417713 A1, Dec. 29, 2022
Int. Cl. H04W 4/38 (2018.01); H04L 43/02 (2022.01); H04W 40/10 (2009.01); H04W 52/02 (2009.01)
CPC H04W 4/38 (2018.02) [H04W 40/10 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A building stress balance monitoring system of a passive sensor network, the building stress balance monitoring system comprising:
a plurality of nodes arranged in a same building surface of a building or arranged in a supporting surface of a bridge,
wherein
each of the nodes mainly consists of a pressure sensor module, a radio frequency signal acquisition module, and a network module;
a sensing surface of the pressure sensing module acquires building pressure information and transmits same to the pressure sensor module;
the pressure sensor module receives electric energy provided by the radio frequency signal acquisition module, and converts the pressure information into data, which is uploaded to a network through the network module;
if electric capacity of the radio frequency signal acquisition module is less than a set threshold, the pressure sensor module enters a sleep state, and the radio frequency signal acquisition module acquires a radio frequency signal and converts same into electric energy; and
when stored electric energy reaches a high set threshold, the pressure sensor module switches from the sleep state to an active state and performs data acquisition or transmission.