CN209194498U - In-situ test data collection system based on DSP Digital Signal Processing - Google Patents
In-situ test data collection system based on DSP Digital Signal Processing Download PDFInfo
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- CN209194498U CN209194498U CN201821657848.1U CN201821657848U CN209194498U CN 209194498 U CN209194498 U CN 209194498U CN 201821657848 U CN201821657848 U CN 201821657848U CN 209194498 U CN209194498 U CN 209194498U
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Abstract
The utility model provides a kind of in-situ test data collection system based on DSP Digital Signal Processing, the test data of static sounding probe can either effectively be acquired, vane shear test data can be acquired again, it includes DSP digital signal processor, modulus signal conversion module, input channel conversion module and sensor, the sensor includes temperature sensor, static point resistance sensor, sidewall friction force snesor, pore water pressure sensor, probe inclination sensor, four-bladed vane torque sensor, angle displacement sensor and depth displacement sensor, the static point resistance sensor, sidewall friction force snesor, pore water pressure sensor, four-bladed vane torque sensor, angle displacement sensor and depth displacement sensor are separately connected input channel conversion module, the modulus signal conversion module is separately connected DS P digital signal processor and input channel conversion module, temperature sensor and probe inclination sensor are separately connected DSP digital signal processor.
Description
Technical field
The utility model relates to static sounding data acquisition technology fields, the specially original based on DSP Digital Signal Processing
Bit test data collection system.
Background technique
In-situ test is the natural structure or substantially state in situ that ground is kept on the original location of ground
It mainly include that cone penetration test and vane-shear try with the method tested under natural stress condition rock and soil properties
It tests, quiet spy probe and four-bladed vane is pressed into ground to be measured with certain constant rate of speed using injection equipment, according to probe and ten
Sensing data in letter stencil determines the physico-mechanical properties of soil layer.And in existing in-situ test data collection system,
Due to lacking a set of integrated data collection system, so the quiet spy testing experiment using quiet probe and cutting using four-bladed vane
It cuts testing experiment to need to separate progress, is individually tested using a set of data collection system, operate also more cumbersome, drop
The working efficiency of low in-situ test data acquisition.
Utility model content
The utility model provides a kind of in-situ test data collection system based on DSP Digital Signal Processing, can either
The effectively test data of acquisition static sounding probe, and vane shear test data can be acquired.
The technical solution of the utility model is: including DSP digital signal processor, modulus signal conversion module, input
Channel conversion module and sensor, the sensor include temperature sensor, static point resistance sensor, sidewall friction power sensing
Device, pore water pressure sensor, probe inclination sensor, four-bladed vane torque sensor, angle displacement sensor and depth displacement
Sensor, the static point resistance sensor, sidewall friction force snesor, pore water pressure sensor, four-bladed vane torque sensor,
Angle displacement sensor and depth displacement sensor are separately connected input channel conversion module, the modulus signal conversion module point
Not Lian Jie DSP digital signal processor and input channel conversion module, temperature sensor and probe inclination sensor be separately connected
DSP digital signal processor.
The temperature sensor, static point resistance sensor, sidewall friction force snesor, pore water pressure sensor, probe
Inclination sensor is set on static sounding probe, and four-bladed vane torque sensor is set on cross wrench, and angle displacement sensor is set
In in torsional shearing device, depth displacement sensor is set on feeler lever perforation device.
The DSP digital signal processor connecting integration industrial personal computer.
The utility model has the beneficial effects that:
1, above structure had both been configured with a variety of sensings for acquiring static sounding probe data in a set of acquisition system
Device, while also provided the multiple sensors that can acquire vane shear test data, probe static sounding can be individually used for
It is acquired with the data of vane-shear, realizes that the switching of multiple functions uses, can also be used to pop one's head in simultaneously static sounding and cross
Plate shearing test effectively expands the operation strategies of in-situ test data collection system.
2, using DSP digital signal processor, have the characteristics that measurement accuracy is high, sample rate is fast.
3, easy to operate using integrated industrial personal computer, stability and good compatibility, it is provided simultaneously with online real time data prison
The function of control.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing.
As shown in Figure 1, the present embodiment includes DSP digital signal processor, modulus signal conversion module, input channel conversion
Module and sensor, the sensor include temperature sensor, static point resistance sensor, sidewall friction force snesor, pore water
Pressure sensor, probe inclination sensor, four-bladed vane torque sensor, angle displacement sensor and depth displacement sensor, institute
State static point resistance sensor, sidewall friction force snesor, pore water pressure sensor, four-bladed vane torque sensor, angle displacement
Sensor and depth displacement sensor are separately connected input channel conversion module, and the modulus signal conversion module is separately connected
DSP digital signal processor and input channel conversion module, temperature sensor and probe inclination sensor are separately connected DSP number
Signal processor.
The temperature sensor, static point resistance sensor, sidewall friction force snesor, pore water pressure sensor, probe
Inclination sensor is set on static sounding probe, and four-bladed vane torque sensor is set on cross wrench, and angle displacement sensor is set
In in torsional shearing device, depth displacement sensor is set on feeler lever perforation device.The DSP digital signal processor is integrally connected
Change industrial personal computer.
When carrying out stratum test by injection equipment, the signal of each sensor carries out signal by input channel conversion module
Channel adjustment is transmitted to modulus signal conversion module and carries out analog/digital signal processing, and the digital signal handled well is transmitted to DSP again
Further digitized processing is carried out in digital signal processor, by digital communication interface by digital data transmission to integration
It displays data in industrial personal computer and is saved with data.
Input channel conversion module therein uses MPC508A, has 8 tunnel analog quantity timesharing input channels, 3 select 1 gating
Control port has two-way on-off function；Modulus signal conversion module use AD7705, with 16 band sampling holding based on
The successive approximation register type analog-to-digital converter of capacitor has high-resolution, wide dynamic range, self-correcting, quasi- noise robustness excellent
The characteristics of good and Low-voltage Low-power；DSP digital signal processor uses ADSP21160, and measurement accuracy is high, sample rate
Fastly, Peripheral Interface is abundant, can effectively improve the quality of data of in-situ test；Integrated industrial personal computer is using Siemens
IPC547D is integrated with the functions such as industrial host computer, display screen and touch screen, and good compatibility is easy to operate, has online
The function of real time data inspecting.
In the above-described embodiments,
Temperature sensor uses DS18B20,
Static point resistance sensor uses doube bridge resistance strain plate,
Sidewall friction force snesor uses doube bridge resistance strain plate,
Pore water pressure sensor uses doube bridge resistance strain plate,
Inclination sensor of popping one's head in uses SCA100T,
Four-bladed vane torque sensor uses doube bridge resistance strain plate,
Angle displacement sensor uses WDD35D-4 precise conductive potentiometer type,
Depth displacement sensor uses the magnetic suspension displacement sensor of 4-20mA output.
In above-mentioned data collection system, temperature sensor, static point resistance sensor, sidewall friction force snesor, pore water
Pressure sensor, probe inclination sensor are set in static sounding probe, to the related data of acquisition probe, four-bladed vane torque
Sensor is set in four-bladed vane, and to acquire vane shear test data, angle displacement sensor is set in torsional shearing device,
During rotating feeler lever by torsional shearing device, the rotational angle of feeler lever is acquired, finally obtains the rotation of feeler lever lower end four-bladed vane
Angle value, depth displacement sensor is set on feeler lever perforation device, for acquiring the depth displacement data in feeler lever penetration process.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (2)
1. the in-situ test data collection system based on DSP Digital Signal Processing, it is characterised in that: at DSP digital signal
Managing device, modulus signal conversion module, input channel conversion module and sensor, the sensor includes temperature sensor, cone
Resistive force sensor, sidewall friction force snesor, pore water pressure sensor, probe inclination sensor, four-bladed vane torque sensor,
Angle displacement sensor and depth displacement sensor, the static point resistance sensor, sidewall friction force snesor, pore water pressure
Sensor, four-bladed vane torque sensor, angle displacement sensor and depth displacement sensor are separately connected input channel modulus of conversion
Block, modulus signal conversion module are separately connected DSP digital signal processor and input channel conversion module, temperature sensor and spy
Head tilt sensor is separately connected DSP digital signal processor, the temperature sensor, static point resistance sensor, sidewall friction
Force snesor, pore water pressure sensor, probe inclination sensor are set on the probe of static sounding, four-bladed vane torque sensor
On cross wrench, angle displacement sensor is set in torsional shearing device, and depth displacement sensor is set on feeler lever perforation device.
2. in-situ test data collection system according to claim 1, it is characterised in that: the DSP Digital Signal Processing
Device connecting integration industrial personal computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821657848.1U CN209194498U (en) | 2018-10-12 | 2018-10-12 | In-situ test data collection system based on DSP Digital Signal Processing |
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| CN201821657848.1U CN209194498U (en) | 2018-10-12 | 2018-10-12 | In-situ test data collection system based on DSP Digital Signal Processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672435A (en) * | 2019-10-09 | 2020-01-10 | 中国石油天然气集团公司 | Ocean soil dynamic shear modulus test analysis method and device |
| CN114371270A (en) * | 2021-12-03 | 2022-04-19 | 中铁第四勘察设计院集团有限公司 | In-situ test method and system |
-
2018
- 2018-10-12 CN CN201821657848.1U patent/CN209194498U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672435A (en) * | 2019-10-09 | 2020-01-10 | 中国石油天然气集团公司 | Ocean soil dynamic shear modulus test analysis method and device |
| CN110672435B (en) * | 2019-10-09 | 2022-06-03 | 中国石油天然气集团公司 | Ocean soil dynamic shear modulus test analysis method and device |
| CN114371270A (en) * | 2021-12-03 | 2022-04-19 | 中铁第四勘察设计院集团有限公司 | In-situ test method and system |
| CN114371270B (en) * | 2021-12-03 | 2024-03-15 | 中铁第四勘察设计院集团有限公司 | In-situ test method and system |
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