Online bridge monitoring system based on MDG-SC algorithm
A technology of MDG-SC and monitoring system, applied in the field of bridge monitoring system, can solve the problems of scattered distribution, short communication distance and high delay, and achieve the effect of maximizing data collection, wide coverage and low power consumption
Inactive Publication Date: 2018-10-09
HUAIYIN INSTITUTE OF TECHNOLOGY
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[0003] Since the bridges to be monitored are mostly large bridges with long spans, the number of sensors is large and the distribution is scattered, and data can only be transmitted through wireless communication. The wireless communication methods used in existing bridge monitoring systems are mainly GPRS or ZigBee. At present, China's three major operators have stopped investing in 2G networks, and have even proposed 2G / 3G withdrawal plans. GPRS communication has begun to gradually withdraw from the stage. At the same time, GPRS data packet loss is serious, the rate is low, and the delay is high, which cannot meet real-time performance. Highly demanding monitoring, while ZigBee has high cost, short communication distance and poor penetration
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[0022] Such as figure 1 The shown bridge online monitoring system based on MDG-SC algorithm includes a signal acquisition part composed of sensors installed on the bridge, a signal processing and network transmission part, a cloud service and data processing part, and the signal acquisition part Acceleration sensors, stress sensors, temperature and humidity sensors, and wind speed sensors are used; the signal processing and network transmission part and the cloud service and data processing part are passed such as figure 2 The shown Lora wireless sensor network using the mobile sink strategy communicates. The signal processing and network transmission part includes a micro-processing chip, a GPS positioning module, a Lora communication module, and a mobile sink MS. The micro-processing chip receives and processes signals Collect part of the uploaded signal data to form a sub-sink S, obtain position and time data through the GPS positioning module, and upload the data to the m...
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The invention discloses an online bridge monitoring system based on an MDG-SC algorithm. The online bridge monitoring system comprises a signal collection part composed of sensors installed on a bridge, a signal processing and network transmission part, and a cloud service and data processing part, wherein the signal processing and network transmission part communicates with the cloud service anddata processing part through a Lora wireless sensor network adopting a mobile sink strategy, the moving speed of the mobile sink MS is optimized by the MDG-SC algorithm, that is, when a sub-sink S covering the location of the mobile sink MS is 1, the moving speed of the mobile sink MS is a data rate SP1 of the sub-sink S; when the sub-sink S covering the location of the mobile sink MS is greater than 1, the moving speed of the mobile sink MS is the lowest data rate SP2 in all sub-sinks S; and when the sub-sink S covering the location of the mobile sink MS is 0, the moving speed of the mobile sink MS is SP3, and SP3 is greater than SP1 and SP2.
Description
technical field [0001] The invention relates to the field of bridge monitoring systems, in particular to an MDG-SC algorithm-based bridge online monitoring system. Background technique [0002] With the vigorous development of the national economy and the increasingly busy transportation, bridges, as an important part of transportation, play an increasingly prominent role. Bridge is an infrastructure with large investment, high technical difficulty and long service life. It occupies a pivotal position in national economy and social life. Due to factors such as long-term load and environmental erosion, bridges are constantly damaged and destroyed, resulting in a decline in bearing capacity; through The bridge monitoring system, which uses sensors to monitor the condition of the bridge, plays an important role in the monitoring and maintenance of the bridge. [0003] Since the bridges to be monitored are mostly large bridges with long spans, the number of sensors is large and...
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IPC IPC(8): H04W4/38H04L29/08G06N3/08G06N3/04G01D21/02
CPCH04L67/12H04W4/38G06N3/08G01D21/02G06N3/045
Inventor 张青春甘浩宇梁川何威
Owner HUAIYIN INSTITUTE OF TECHNOLOGY