Distributed type landslide monitoring and early warning system and method based on narrow-band internet of things

Abstract

The invention discloses a distributed type landslide monitoring and early warning system and method based on the narrow-band internet of things, and belongs to the technical field of monitoring and early warning. A plurality of deformation sensing nodes are distributed on a landslide body and the peripheral area, the deformation sensing nodes are wirelessly connected with a Telecom base station, and the Telecom base station is wirelessly connected with a central server, a sound-light alarm and a cell phone. An alarm is not given until landslide deformation happens, a grading alarm is given according to information of a sensor, the alarm information is accurate, construction is simple, damage cannot easily happen, earth surface land utilization is not affected, cost is low, the nodes can bedeployed on the landslide body and the peripheral area, the system can be used as a disposable product and can be abandoned when problems or feeding happens, all-weather real-time monitoring is realized, and artificial monitoring work can be partly replaced.

Description

technical field [0001] The invention relates to a distributed landslide monitoring and early warning system and method based on narrowband Internet of Things, belonging to the technical field of monitoring and early warning. Background technique [0002] Geological disasters are the geological disasters that cause the most casualties and property losses. The prevention and control experience in recent years shows that daily monitoring and early warning of disasters are effective measures to prevent landslide disasters. [0003] Traditional landslide monitoring and early warning methods are divided into group monitoring and group prevention and professional monitoring. Group monitoring and group defense is mainly carried out by monitors to manually monitor the deformation of landslides and other information. If there is any danger, the horn, hand-cranked alarm, etc. will be used to send an alarm. Because it is manual operation, all-weather, real-time monitoring and data tran...

AI Technical Summary

Problems solved by technology

However, the device has the following disadvantages: (1) The monitoring data of sensors such as temperature, humidity, and ultrasound are not directly related to whether the landslide is deformed, but instead increase the power consumption and cost of the device; (2) The equipment is exposed on the ground, and it is easy to Disturbance by human beings, livestock, etc., resulting in equipment damage or abnormal monitoring data; (3) Data transmission adopts GSM network, which has high power consumption, and is not suitable for use in areas with poor GSM network signals or buried underground; (4) equipment No direct alarm signal output, no alarm device connected to it

However, this equipment has the following disadvantages: (1) The installation of the equipment requires the bolt to be driven vertically into the ground and embedded in the geologically stable layer, which is difficult and unnecessary in actual work; (2) The monitoring data of a single set of equipment is subject to multiple Influenced by these factors, it should not be used as the basis for judging the stability of the entire slope. The acceleration value is only one of the parameters of landslide deformation; (3) There is no alarm unit and alarm mechanism

However, the device has the following disadvantages: (1) The use of GPRS technology for transmitting information has been eliminated; (2) The structure is complex, and the monitoring site has a host as a relay to transmit data to the server through the network in addition to the wireless sensor nodes; (3) There is no Consider the alarm scheme after data collection

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