CN202903327U - Debris flow earth sound monitoring device - Google Patents

Debris flow earth sound monitoring device Download PDF

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Publication number
CN202903327U
CN202903327U CN201220608571XU CN201220608571U CN202903327U CN 202903327 U CN202903327 U CN 202903327U CN 201220608571X U CN201220608571X U CN 201220608571XU CN 201220608571 U CN201220608571 U CN 201220608571U CN 202903327 U CN202903327 U CN 202903327U
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monitoring
debris flow
module
interface
control end
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黎晓宇
魏丽
胡凯衡
洪勇
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Institute of Mountain Hazards and Environment IMHE of CAS
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Institute of Mountain Hazards and Environment IMHE of CAS
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Abstract

The utility model discloses a debris flow earth sound monitoring device. In view of the defect that the existing debris flow earth sound parameter detector cannot simultaneously monitor special three-axis vibration intensity values, the utility model provides a debris flow detector capable of more accurately acquiring earth sound data during the outbreak process of a debris flow. The debris flow earth sound monitoring device comprises a monitoring end, a center end and a control end sequentially connected, wherein the monitoring end is an earth sound signal detection device, and adopts an MEMS (Micro Electro Mechanical Systems) three-axis digital accelerometer chip as the sensing component; the center end is a signal transmission device between the control end and the monitoring end; and the control end is a device for processing earth sound signals and controlling instruction operation. The utility model further comprises a debris flow head velocity measuring device making use of the above debris flow earth sound monitoring device. With the debris flow earth sound monitoring device, acceleration data in X, Y, Z three directions on each sampling point can be measured in real time, the earth sound intensity obtained after calculation is more accurate, and the debris flow head velocity measuring device has the advantages of small volume, light weight, anti-interference ability and low energy consumption.

Description

A kind of geosound of debris flow monitoring device
Technical field
The present invention relates to a kind of rubble flow monitoring device, particularly relate to a kind of geosound of debris flow signal monitoring, belong to earthquake sounds acquisition of signal technical field.
Background technology
The earth interior vibration signal was along propagate the vibration wave that produces along ditch bank rock stratum when geosound of debris flow was the rubble flow generation.Geosound of debris flow is the same with other vibration waves, has unique vibration frequency, waveform, amplitude of wave form, and show different eigenwerts in debris flow formation, startup, generating process.By detecting the variation of geosound of debris flow, the dominant frequency scope of geosound of debris flow ripple and the vibration that produces with the raceway groove environmental background (such as rainfall, blow, thunder and lightning etc.) difference is come, the relation that is directly proportional with the rubble flow flow according to geosound of debris flow intensity (amplitude) is longer according to the overcurrent duration of rubble flow again, utilize frequency discrimination, amplitude discrimination, the time-delay three elements, just formation that can Monitoring Debris Flow occurs, and in time sends the mud-stone flow disaster forecast.
The patent No. is ZL 99241577.2, and Granted publication number is CN2396404Y, and the Chinese utility model patent that name is called " mud-rock flow earth quake sounds " discloses a kind of mud-rock flow earth quake sounds.This detector is comprised of multichannel earthquake sounds signal sampling channel, detection trigger circuit, A/D conversion, data-carrier store and microprocessor control system, and have communication interface with the PC microcomputer, can be used for that geosound of debris flow parameter multiple spot detects simultaneously and rubble flow analysis on change and geosound of debris flow are reported to the police.This detector adopts the single shaft piezoelectric acceleration transducer, be converted into digital signal by amplification, filtering, A/D circuit, send alerting signal and data by wireless station, existence can't be obtained the real-time sampling data by wireless mode, and the defective calculated of calculating that can't implementation space three axle shockproofness values and rubble flow tap speed.By the structure of wired photoelectricity transmission alerting signal, there is defects in common another kind of mechanical vibrator, the distortion toothing sensor of adopting of existing earthquake sounds detector too.
Summary of the invention
Purpose of the present invention is exactly for the deficiencies in the prior art, but earthquake sounds data in a kind of Real-time Obtaining debris flow process are provided, and the higher rubble flow detector of data accuracy.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of geosound of debris flow monitoring device comprises the monitoring side, center-side, the control end that connect successively; Described monitoring side is the earthquake sounds signal detection apparatus, and center-side is the signal transmitting apparatus between control end and the monitoring side, and control end is that the ground acoustical signal is processed and the steering order operating means; It is characterized in that: described monitoring side adopts MEMS three number of axle word accelerometer chip as sensing element.
Accelerometer is a kind of inertial sensor, is used for measuring the accelerating force of object.Accelerating force refer to when object in accelerator, act on the power on the line direction before the object.Any object vibration-generating all can produce acceleration change, regardless of the vibration acceleration direction, all can effectively obtain the object vibration relevant information by the object of which movement acceleration.The earth internal vibration signal is propagated the vibration wave that produces along ditch bank rock stratum because geosound of debris flow is rubble flow when occuring, thereby the vibration wave (geosound of debris flow) of association can effectively obtain the data message that rubble flow moves when measuring the rubble flow generation.The utility model product geosound of debris flow monitoring device is by the acceleration information on the Real-time Obtaining sampled point of monitoring side, be back in real time control end by the high-speed communication module through center-side, control end is stored or analyzing and processing data message, can realize earthquake sounds data acquisition, Realtime Alerts, and can calculate geosound of debris flow intensity, direction in space and rubble flow mean flow rate according to image data.
The monitor end of above-mentioned geosound of debris flow monitoring device adopts MEMS three number of axle word accelerometers as sensing element, have two characteristics: the one, changeable for the geosound of debris flow direction, may produce in all directions the feature of vibrations, three number of axle word accelerometers can measure the acceleration information on three directions of x, y on each sampled point, z in real time, calculate the ground sound intensity, the earthquake sounds data of therefore obtaining are more accurate; The 2nd, owing to adopted MEMS(Micro Electro Mechanical Systems, MEMS) technology, so sensor itself is except the function that can bear accelerometer, possessed simultaneously also that volume is little, lightweight, anti-interference, low power consumption and other advantages.
The monitoring side of above-mentioned monitoring device comprises the power circuit module of MEMS three number of axle word accelerometer chip, single-chip microcomputer, communication module, necessity; The integrated real-time timepiece chip of single-chip microcomputer and interface module, and connect with MEMS three number of axle word accelerometer chip by SPI interface, look-at-me circuit respectively.Necessary power circuit module comprises solar panel charge switch circuit, lead-acid battery voltage detecting circuit, power module.The integrated interface module of single-chip microcomputer comprises SPI interface, USART interface, AD interface, and wherein the SPI interface connects with MEMS three number of axle word accelerometer chip, and the USART interface connects with communication module, and the AD interface connects with the lead-acid battery voltage detecting circuit.
After install the monitoring side, produce in case have in the environment above the threshold value vibration signal, MEMS three number of axle word accelerometers gather this vibration signal and produce a look-at-me, single-chip microcomputer receives look-at-me and reads sampled data in the inner FIFO storer of MEMS three number of axle word accelerometers and the real-time clock data of single-chip microcomputer inside by the SPI interface immediately, send to communication module behind the disposal data form and transfer to again center-side, and further be transferred to control end through center-side.The AD interface per minute of single-chip microcomputer gathers lead-acid battery voltage by the lead-acid battery voltage detecting circuit, if overtension is controlled immediately the solar panel charge switch circuit and stopped charging, overcharges heating with the protection lead-acid battery and dryouies battery fluid and damage.
Above-mentioned monitoring device, center-side comprise the power circuit module of communication module, necessity.Necessary power circuit module comprises interface conversion circuit, power module, and the center-side communication module is attached to control end by interface conversion circuit.
Center-side communication module and monitoring side communication module UNICOM channel, receive sampling three number of axle word earthquake sounds data and the instrument status parameters information of monitoring side passback, such as instrument time, sampling alarm threshold value, sample frequency, sampling time etc., and the steering order that receives control end arranges the monitoring side state parameter etc.
Above-mentioned monitoring device, control end comprise the power circuit module of CPU (central processing unit), data storage cell, communication module, operation signal load module, necessity.
Control end is by receiving three axle earthquake sounds data of passback, according to formula
Figure BDA00002421711200041
Calculate truly sound intensity, direction of vibration and x axle clamp angle With y axle clamp angle
Figure BDA00002421711200043
With z axle clamp angle
Figure BDA00002421711200044
Carry out again necessary output or storage after the earthquake sounds data storage that control end is next with the center-side transmission or the analyzing and processing; Can be to control end input operation information by the operation signal load module, and finally become steering order and through center-side the parameter setting is carried out in the monitoring side.
For the above-mentioned geosound of debris flow monitoring device of the needs that satisfy field survey is equipped with a plurality of monitoring sides usually, device integral body can two kinds of conventional structures.Structure one: device comprises at least two monitoring sides, and each monitoring side connects with a common control end by common center-side; Structure two: device comprises at least two monitoring sides, and each monitoring side connects with a common control end by center-side respectively.The advantage of structure two is can not satisfy when receiving simultaneously a plurality of monitoring sides earthquake sounds data needs when a center-side, can guarantee that by increasing center-side quantity data do not lose.
The utility model also provides a kind of rubble flow tap flow rate measuring device that utilizes above-mentioned geosound of debris flow monitoring device to realize, concrete technical scheme is as follows:
A kind of rubble flow tap flow rate measuring device that utilizes above-mentioned geosound of debris flow monitoring device to realize, it is characterized in that: comprise at least two monitoring sides, each monitoring side is arranged in rubble flow raceway groove homonymy limit, arranges along the rubble flow raceway groove, and keeps a determining deviation.
Device is determined each monitoring side distance values after installing, and when rubble flow passed through straight raceway groove, each monitoring side all can collect acceleration information, can produce the maximum intensity earthquake sounds during rubble flow tap process measurement point.According to the data that collect, extract the moment t that produces peak-data 1, t 2, t i, t j, can calculate the rubble flow tap through the time of per two monitoring sides, such as Δ t Ij=t j-t i, calculate the rubble flow tap through the average velocity of monitoring sensor end through the Distance Time relation again.
Compared with prior art, the beneficial effects of the utility model are: this product adopts MEMS three number of axle word accelerometers, can measure simultaneously acceleration on three directions of x, y on the single sampled point, z, overcome to change after existing equipment adopts single-axis acceleration sensors to install and measured axially, in case the vibrations direction with measure axially inconsistently then can only measure this component of acceleration on axially, there is the defective of larger error in measurement result; Overcome existing measurement mechanism and can't measure the defective of earthquake sounds direction in space; Having overcome existing apparatus uses the voice radio station to carry out wireless transmission, need modulation to reconcile, transmitted data rates is extremely slow, and detect earthquake sounds must high speed acquisition just can accurately rediscover the earthquake sounds data, thereby data volume can be very large, and the defective of big data quantity transmission can't be satisfied in the voice radio station; Overcome existing equipment and adopted filtering, amplification, AD circuit to change into digital signal, every kind of circuit all can produce the defective of second order error; It is large to have overcome the existing apparatus volume, the defective that energy consumption is high.The rubble flow tap flow rate measuring device that expansion obtains based on this geosound of debris flow monitoring device can be measured rubble flow tap mean flow rate, and this also is that existing apparatus can't be realized.
Description of drawings
Fig. 1 is geosound of debris flow monitoring device structural representation.
Fig. 2 is monitoring side circuit diagram (showing MEMS three axis accelerometer chip and single-chip microcomputer connecting circuit figure, lead-acid battery voltage detecting circuit figure, power module circuitry figure).
Fig. 3 is monitoring side circuit diagram (showing solar panel charge switch circuit figure, communication module circuit diagram).
Fig. 4 is center-side circuit diagram (showing that communication module circuit diagram, USART turn the USB circuit diagram).
Fig. 5 is many monitoring sides geosound of debris flow monitoring device structural representation.
Fig. 6 is many monitoring sides geosound of debris flow monitoring device structural representation.
Fig. 7 is rubble flow tap flow rate measuring device mounting structure synoptic diagram.
Figure notation in the accompanying drawing is respectively:
1 monitoring side, 2 center-side, 3 control ends, 4 rubble flow raceway grooves
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is further described.
Embodiment one
Such as Fig. 1~shown in Figure 4, process a kind of geosound of debris flow monitoring device.
Fig. 1 is geosound of debris flow monitoring device structural representation.The geosound of debris flow monitoring device comprises the monitoring side 1, center-side 2, the control end 3 that connect successively; Monitoring side 1 is the earthquake sounds signal detection apparatus, and center-side 2 is signal transmitting apparatus of 1 of control end 3 and monitoring side, and control end 3 is that the ground acoustical signal is processed and the steering order operating means; Monitoring side 1 adopts MEMS three number of axle word accelerometer chip as sensing element.
Fig. 2 is monitoring side circuit diagram (showing MEMS three axis accelerometer chip and single-chip microcomputer connecting circuit figure, lead-acid battery voltage detecting circuit figure, power module circuitry figure); Fig. 3 is monitoring side circuit diagram (showing solar panel charge switch circuit figure, communication module circuit diagram).Monitoring side 1 comprises the power circuit module of MEMS three number of axle word accelerometer chip, single-chip microcomputer, communication module, necessity.The power circuit module of monitoring side 1 necessity comprises solar panel charge switch circuit, lead-acid battery voltage detecting circuit, power module.The integrated real-time timepiece chip of single-chip microcomputer and interface module, and connect with MEMS three number of axle word accelerometer chip by SPI interface, look-at-me circuit respectively; The integrated interface module of single-chip microcomputer comprises SPI interface, USART interface, AD interface, and wherein the SPI interface connects with MEMS three number of axle word accelerometer chip, and the USART interface connects with communication module, and the AD interface connects with the lead-acid battery voltage detecting circuit.
In the present embodiment, MEMS three 13 of number of axle word accelerometer chip resolution, measurement range ± 16g, scale-up factor 4mg/LSB, sample frequency 0.1 ~ 3200HZ; Single-chip microcomputer dominant frequency 16MHZ, SPI interface frequency 2MHZ, USART interface baud rate 115200.
Fig. 4 is center-side circuit diagram (showing that communication module circuit diagram, USART turn the USB circuit diagram).Center-side 2 comprises the power circuit module of communication module, necessity.The power circuit module of center-side 2 necessity comprises interface conversion circuit, power module; Center-side 2 communication modules are attached to control end 3 by interface conversion circuit.
Control end 3 comprises the power circuit module of CPU (central processing unit), data storage cell, communication module, operation signal load module, necessity.
In the present embodiment, monitoring side 1 is the wireless signal transceiver module with the communication module of center-side 2, and center-side 2 wireless signal transceiver modules turn the USB interface change-over circuit by USART and are attached to control end 3.Control end 3 adopts common computer.
Embodiment two
Such as Fig. 5, shown in Figure 6, process a kind of geosound of debris flow monitoring device, belong to many monitoring sides geosound of debris flow monitoring device, itself and embodiment one something in common no longer repeat, its difference is that the geosound of debris flow monitoring device is equipped with a plurality of monitoring sides usually, the whole concrete two kinds of conventional structures of device.
Structure one: Fig. 5 is many monitoring sides geosound of debris flow monitoring device structural representation.Device comprises at least two monitoring sides 1, and each monitoring side 1 connects with a common control end 3 by a common center-side 2.
Structure two: Fig. 6 is many monitoring sides geosound of debris flow monitoring device structural representation.Device comprises at least two monitoring sides 1, and each monitoring side 1 connects with a common control end 3 by center-side 2 respectively.
Embodiment three
As shown in Figure 7, process a kind of rubble flow tap flow rate measuring device, realize based on the geosound of debris flow monitoring device of example two.
Fig. 7 is rubble flow tap flow rate measuring device mounting structure synoptic diagram.Rubble flow tap flow rate measuring device comprises at least two monitoring sides 1, and each monitoring side 1 is arranged in rubble flow raceway groove homonymy limit, arranges along the rubble flow raceway groove, and keeps a determining deviation.Each monitoring side 1 spacing design consideration rubble flow raceway groove physical condition and deciding is generally≤100m, and keeps equidistant.

Claims (10)

1. a geosound of debris flow monitoring device comprises the monitoring side (1), center-side (2), the control end (3) that connect successively; Described monitoring side (1) is the earthquake sounds signal detection apparatus, and center-side (2) is the signal transmitting apparatus between control end (3) and monitoring side (1), and control end (3) is that the ground acoustical signal is processed and the steering order operating means; It is characterized in that: described monitoring side (1) adopts MEMS three number of axle word accelerometer chip as sensing element.
2. device according to claim 1, it is characterized in that: device comprises at least two monitoring sides (1), each monitoring side (1) connects with a common control end (3) by a common center-side (2); Perhaps, device comprises at least two monitoring sides (1), and each monitoring side (1) connects with a common control end (3) by a center-side (2) respectively.
3. device according to claim 1 and 2 is characterized in that: described monitoring side (1) comprises MEMS three number of axle word accelerometer chip, single-chip microcomputer, communication module, necessary power circuit module; The integrated real-time timepiece chip of single-chip microcomputer and interface module, and connect with MEMS three number of axle word accelerometer chip by SPI interface, look-at-me circuit respectively.
4. device according to claim 3 is characterized in that: the power circuit module that monitoring side (1) is necessary comprises solar panel charge switch circuit, lead-acid battery voltage detecting circuit, power module.
5. device according to claim 4, it is characterized in that: the integrated interface module of described single-chip microcomputer comprises SPI interface, USART interface, AD interface, wherein the SPI interface connects with MEMS three number of axle word accelerometer chip, the USART interface connects with communication module, and the AD interface connects with the lead-acid battery voltage detecting circuit.
6. it is characterized in that according to claim 1 and 2 or 5 described devices: described center-side (2) comprises communication module, necessary power circuit module; The power circuit module that described center-side (2) is necessary comprises interface conversion circuit, power module; Center-side (2) communication module is attached to control end (3) by interface conversion circuit.
7. device according to claim 6 is characterized in that: described control end (3) comprises CPU (central processing unit), data storage cell, communication module, operation signal load module, necessary power circuit module.
8. device according to claim 7, it is characterized in that: described monitoring side (1) is the wireless signal transceiver module with the communication module of center-side (2), and center-side (2) wireless signal transceiver module turns the USB interface change-over circuit by USART and is attached to control end (3); Described MEMS three number of axle word accelerometer chip, 13 of resolution, measurement range ± 16g, scale-up factor 4mg/LSB, sample frequency 0.1 ~ 3200HZ; Described single-chip microcomputer dominant frequency 16MHZ, SPI interface frequency 2MHZ, USART interface baud rate 115200.
9. rubble flow tap flow rate measuring device that utilizes claim 1 or 2 or 8 described geosound of debris flow monitoring devices to realize, it is characterized in that: comprise at least two monitoring sides (1), each monitoring side (1) is arranged in rubble flow raceway groove homonymy limit, arrange along the rubble flow raceway groove, and keep a determining deviation.
10. device according to claim 9 is characterized in that: described each monitoring side (1) spacing≤100m, and keep equidistant.
CN201220608571XU 2012-11-17 2012-11-17 Debris flow earth sound monitoring device Expired - Fee Related CN202903327U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103646514A (en) * 2013-12-16 2014-03-19 湖南华中灾害预警研究开发有限公司 Wireless self-networking group detection based mudslide early warning sensing device, system and method
CN104359479A (en) * 2014-11-28 2015-02-18 青岛理工大学 Concrete movement track measuring system
CN105759308A (en) * 2014-12-17 2016-07-13 北京大学深圳研究生院 Great earthquake impending earthquake sound monitoring probe unit structure based on piezoelectric cable sensor and circuit module structure
CN108088545A (en) * 2016-11-23 2018-05-29 航天科工惯性技术有限公司 A kind of multichannel geosound of debris flow process circuit and method
CN110794169A (en) * 2019-10-10 2020-02-14 沈阳化工大学 Intelligent monitoring system for water flow condition in seabed-imitated ocean current experiment
CN110910612A (en) * 2019-11-24 2020-03-24 中国科学院、水利部成都山地灾害与环境研究所 Method for monitoring torrential flood and debris flow disasters in debris flow channel

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103646514A (en) * 2013-12-16 2014-03-19 湖南华中灾害预警研究开发有限公司 Wireless self-networking group detection based mudslide early warning sensing device, system and method
CN103646514B (en) * 2013-12-16 2016-01-06 湖南华中灾害预警研究开发有限公司 Debris flow early-warning sensing device, system and method is detected based on wireless self-networking group
CN104359479A (en) * 2014-11-28 2015-02-18 青岛理工大学 Concrete movement track measuring system
CN104359479B (en) * 2014-11-28 2017-09-26 青岛理工大学 A kind of concrete movement locus measuring system
CN105759308A (en) * 2014-12-17 2016-07-13 北京大学深圳研究生院 Great earthquake impending earthquake sound monitoring probe unit structure based on piezoelectric cable sensor and circuit module structure
CN108088545A (en) * 2016-11-23 2018-05-29 航天科工惯性技术有限公司 A kind of multichannel geosound of debris flow process circuit and method
CN108088545B (en) * 2016-11-23 2019-10-18 航天科工惯性技术有限公司 A kind of multichannel geosound of debris flow processing circuit and method
CN110794169A (en) * 2019-10-10 2020-02-14 沈阳化工大学 Intelligent monitoring system for water flow condition in seabed-imitated ocean current experiment
CN110794169B (en) * 2019-10-10 2021-09-10 沈阳化工大学 Intelligent monitoring system for water flow condition in seabed-imitated ocean current experiment
CN110910612A (en) * 2019-11-24 2020-03-24 中国科学院、水利部成都山地灾害与环境研究所 Method for monitoring torrential flood and debris flow disasters in debris flow channel
CN110910612B (en) * 2019-11-24 2021-09-28 中国科学院、水利部成都山地灾害与环境研究所 Method for monitoring torrential flood and debris flow disasters in debris flow channel

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