CN215677125U - Landslide monitoring system for starting sensor to initiate automatic frequency conversion acquisition of signal by external trigger element - Google Patents
Landslide monitoring system for starting sensor to initiate automatic frequency conversion acquisition of signal by external trigger element Download PDFInfo
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- CN215677125U CN215677125U CN202121325869.5U CN202121325869U CN215677125U CN 215677125 U CN215677125 U CN 215677125U CN 202121325869 U CN202121325869 U CN 202121325869U CN 215677125 U CN215677125 U CN 215677125U
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Abstract
The utility model provides a landslide monitoring system which is triggered by an external trigger element starting sensor to cause automatic frequency conversion acquisition of signals, and the landslide monitoring system comprises a data acquisition unit, wherein the data acquisition unit acquires relevant signal data of a monitoring area through a signal sensor arranged in a probe hole of the monitoring area, the data acquisition unit acquires and records the data according to a set frequency, a signal acquisition frequency change triggering unit is additionally arranged on the data acquisition unit, the signal acquisition frequency change triggering unit is connected with the external trigger element starting sensor, the external trigger element starting sensor receives the data of environmental change of the monitoring area, when a preset value is reached, a physical signal is sent to the signal acquisition frequency change triggering unit, and after the signal acquisition frequency change triggering unit receives the signal, the signal acquisition frequency of the data acquisition unit is changed. Has the advantages that: the system correspondingly adjusts the signal acquisition frequency of the data acquisition unit through the change of external environment data, and the operation time interval is changed. Not only optimizes the power consumption, but also can monitor in time and improve the early warning degree.
Description
Technical Field
The utility model is mainly suitable for the field of landslide monitoring geological disasters, relates to system equipment for landslide monitoring, and can be used for monitoring objects similar to other fields such as geotechnical engineering such as embankments and the like, hydraulic engineering such as dams and the like.
Background
Landslide is one of geological disasters which are widely distributed, frequently occur and seriously influence China, can cause serious casualties and huge property loss, and has great influence on geological environment, human living safety and social economy. Monitoring a high-risk area and a high-risk area of a landslide, carrying out early warning and forecasting, and organizing personnel and property transfer in time are effective means for reducing damage. At present, there are many monitoring methods, including remote monitoring techniques such as synthetic aperture radar interferometric remote sensing measurement, and also a combination method for monitoring earth surface and underground parameters such as rainfall, vibration, displacement, stress, moisture and the like in landslide areas by using various sensors. According to the combined monitoring method of the sensors, on one hand, various sensors are required to be arranged at different depths in multiple positions in a landslide area to form a monitoring network system, and external power supply is required to ensure real-time normal acquisition of the sensors; on the other hand, current sensor monitoring is generally a fixed data acquisition frequency, which may fail to acquire critical monitoring signals in time while the landslide is deforming or breaking. Generally, the higher the acquisition frequency is in a landslide monitoring system, the more data information is, the higher the probability of accurate early warning prediction is, but the power consumption is increased. The electric energy consumption of a landslide field monitoring sensor is reduced, the frequency of sensor data acquisition when a landslide is really deformed or damaged is increased, and the technical problem that real-time monitoring in landslide geological disasters, geotechnical engineering, hydraulic engineering and other fields is still unsolved is achieved by cooperation of low power consumption of equipment and high frequency of data.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a landslide monitoring system which starts a sensor by an external trigger element to trigger automatic frequency conversion acquisition of signals.
The technical scheme of the utility model is as follows: a landslide monitoring system with automatic frequency conversion acquisition of signals triggered by an external trigger element starting sensor comprises a data acquisition unit, wherein the data acquisition unit acquires relevant signal data of a monitoring area through a signal sensor arranged in a probing hole of the monitoring area, the data acquisition unit acquires and records data according to a set frequency, a signal acquisition frequency change trigger unit is additionally arranged on the data acquisition unit and is connected with the external trigger element starting sensor, the external trigger element starting sensor receives data of environmental change of the monitoring area, when a preset value is reached, a physical signal is sent to the signal acquisition frequency change trigger unit, and after the signal acquisition frequency change trigger unit receives the physical signal, the signal acquisition frequency of the data acquisition unit is changed.
The relevant signal data of the monitoring area comprise soil moisture content, soil temperature, pressure, stress variation, resistivity and displacement.
The data of the environmental change of the monitoring area comprise rainfall and vibration.
The transmitted and received physical signals comprise electric signals, optical signals and electromagnetic waves.
Preferably, the external trigger element starting sensor is a rain gauge, the rain gauge sends a pulse signal to the data collector when the rainfall in a period of time reaches a set value, and the signal collection frequency change trigger unit triggers the data collector to change the signal collection frequency after receiving the pulse signal.
Preferably, the external trigger element starting sensor is a vibrometer, when the vibration quantity of the vibrometer reaches a set value, a pulse signal is sent to the data acquisition unit, and the signal acquisition frequency change trigger unit triggers the data acquisition unit to change the signal acquisition frequency after receiving the pulse signal.
The data acquisition unit and the signal sensor are a TDR landslide monitoring system, an inclinometer, a displacement meter and the like.
The data acquisition unit is provided with a data storage module and a wireless signal transmission module.
The utility model has the beneficial effects that: the system unifies the monitoring operation time interval with the external trigger element, correspondingly adjusts the signal acquisition frequency of the data acquisition unit through the change of external environment data, and changes the operation time interval. In a normal state, the power consumption is optimized, the geological change condition of the landslide-prone area can be monitored in time, and the early warning degree is improved.
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FIG. 1 is a schematic view of the present invention;
reference numerals: 1-a rain gauge, 2-a data acquisition unit, 3-a signal sensor and 4-a signal line.
Detailed Description
A landslide monitoring system with automatic frequency conversion acquisition of signals triggered by an external trigger element starting sensor comprises a data acquisition unit, wherein the data acquisition unit acquires relevant signal data of a monitoring area through a signal sensor arranged in a probing hole of the monitoring area, the data acquisition unit acquires and records data according to a set frequency, a signal acquisition frequency change trigger unit is additionally arranged on the data acquisition unit and is connected with the external trigger element starting sensor, the external trigger element starting sensor receives data of environmental change of the monitoring area, when a preset value is reached, a physical signal is sent to the signal acquisition frequency change trigger unit, and after the signal acquisition frequency change trigger unit receives the physical signal, the signal acquisition frequency of the data acquisition unit is changed.
The relevant signal data of the monitoring area comprises soil moisture content, soil temperature, pressure, stress variation, resistivity, displacement and the like. The data for monitoring the change of the regional environment comprise rainfall, humidity, vibration quantity and the like. Physical signals include electrical signals, optical signals, electromagnetic waves, and the like.
One specific example is that the external trigger element starting sensor is a rain gauge 1, and the data acquisition unit 2 and the signal sensor 3 are devices used for monitoring landslide such as a TDR landslide monitoring system or an inclinometer and a displacement meter. The rainfall gauge 1 sends a pulse signal to the data acquisition unit when the rainfall in a period of time reaches a set value, and the signal acquisition frequency change trigger unit triggers the data acquisition unit to shorten the signal acquisition time interval after receiving the pulse signal. If the operation is performed for half an hour every 24 hours as usual, the operation can be changed to 20 minutes every 3 hours when the rainfall becomes large.
The external trigger element starting sensor can also be a vibrometer or an accelerometer, the geophone converts seismic waves into electric signals, and the monitoring frequency is changed after the signal acquisition frequency change trigger unit receives the electric signals.
Furthermore, a data storage module and a wireless signal transmission module can be arranged on the data acquisition unit, so that data is prevented from being lost during data transmission, and personnel can conveniently send monitoring data to a region where the personnel are not easy to reach.
Claims (8)
1. The utility model provides a landslide monitoring system who triggers sensor to cause automatic frequency conversion of signal and gather by external trigger element contains data collection station, and data collection station gathers monitoring area relevant signal data through the signal inductor who lays at monitoring area probe hole, and data collection station gathers, records data, characterized by according to setting for frequency: the data acquisition device is additionally provided with a signal acquisition frequency change trigger unit, the signal acquisition frequency change trigger unit is connected with an external trigger element starting sensor, the external trigger element starting sensor receives data of monitoring area environment change, when a preset value is reached, a physical signal is sent to the signal acquisition frequency change trigger unit, and after the signal acquisition frequency change trigger unit receives the physical signal, the signal acquisition frequency of the data acquisition device is changed.
2. The landslide monitoring system according to claim 1 wherein the sensor is activated by an external trigger to trigger automatic frequency conversion acquisition of the signal, wherein: the relevant signal data of the monitoring area comprises soil moisture content, soil temperature, pressure, stress variation, resistivity and displacement.
3. The landslide monitoring system according to claim 1 wherein the sensor is activated by an external trigger to trigger automatic frequency conversion acquisition of the signal, wherein: the data for monitoring the change of the regional environment comprise rainfall and vibration.
4. The landslide monitoring system according to claim 1 wherein the sensor is activated by an external trigger to trigger automatic frequency conversion acquisition of the signal, wherein: the physical signals include electrical signals, optical signals, electromagnetic waves.
5. The landslide monitoring system according to claim 1 wherein the sensor is activated by an external trigger to trigger automatic frequency conversion acquisition of the signal, wherein: the external trigger element starting sensor is a rain gauge, when the rainfall of the rain gauge reaches a set value within a period of time, a pulse signal is sent to the data acquisition unit, and after the signal acquisition frequency change trigger unit receives the pulse signal, the data acquisition unit is triggered to change the signal acquisition frequency.
6. The landslide monitoring system according to claim 1 wherein the sensor is activated by an external trigger to trigger automatic frequency conversion acquisition of the signal, wherein: the external trigger element starting sensor is a vibrometer, when the vibration quantity of the vibrometer reaches a set value, a pulse signal is sent to the data acquisition unit, and the signal acquisition frequency change trigger unit triggers the data acquisition unit to change the signal acquisition frequency after receiving the pulse signal.
7. A landslide monitoring system according to claim 5 or 6 wherein the sensor is activated by an external trigger to trigger automatic frequency conversion collection of signals, wherein: the data acquisition unit and the signal sensor are a TDR landslide monitoring system.
8. The landslide monitoring system according to claim 1 wherein the sensor is activated by an external trigger to trigger automatic frequency conversion acquisition of the signal, wherein: the data acquisition unit is provided with a data storage module and a wireless signal transmission module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121325869.5U CN215677125U (en) | 2021-06-15 | 2021-06-15 | Landslide monitoring system for starting sensor to initiate automatic frequency conversion acquisition of signal by external trigger element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202121325869.5U CN215677125U (en) | 2021-06-15 | 2021-06-15 | Landslide monitoring system for starting sensor to initiate automatic frequency conversion acquisition of signal by external trigger element |
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| CN215677125U true CN215677125U (en) | 2022-01-28 |
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| CN202121325869.5U Active CN215677125U (en) | 2021-06-15 | 2021-06-15 | Landslide monitoring system for starting sensor to initiate automatic frequency conversion acquisition of signal by external trigger element |
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2021
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