CN206291893U - A kind of tunnel cross section data acquisition device based on scanning laser radar - Google Patents
A kind of tunnel cross section data acquisition device based on scanning laser radar Download PDFInfo
- Publication number
- CN206291893U CN206291893U CN201621456089.3U CN201621456089U CN206291893U CN 206291893 U CN206291893 U CN 206291893U CN 201621456089 U CN201621456089 U CN 201621456089U CN 206291893 U CN206291893 U CN 206291893U
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- CN
- China
- Prior art keywords
- data acquisition
- laser radar
- scanning laser
- rotary encoder
- tunnel cross
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of tunnel cross section data acquisition device based on scanning laser radar, the device with vehicle as carrier, including：Scanning laser radar, the first rotary encoder, the second rotary encoder, data acquisition unit and power supply；First rotary encoder and the second rotary encoder are connected with data device respectively, and data acquisition unit is connected with scanning laser radar, and data acquisition unit and scanning laser radar are connected with power supply respectively.The utility model proposes device, can be acquired in the case where tunnel is not closed, so as to serve data to industrial computer treatment, and go out to detect tunnel cross section, solve detection and the contradiction runed in conventional method, the severe of conventional method condition of work is avoided simultaneously, the precision of detection is improve.
Description
Technical field
The utility model is related to tunnel cross section contour detecting technical field, more particularly to a kind of based on scanning laser radar
Tunnel testing car data acquisition device is carried out to tunnel cross section.
Background technology
With the fast development of China's economy, the fast development for having promoted China's tunnel traffic to build.However as tunnel
The increase of service life, it may appear that all multimass such as tunnel leak, tunnel cracking, lining cutting come off, lining corrosion, tunnel deformation are asked
Topic, so as to trigger transportation safety accident.This just makes the construction in tunnel, runs and maintain into as the safety of people's growing interest is asked
Topic.
Although using convergence gauge and total powerstation etc. in traditional shape changing detection technology, its detection speed is slower,
Need detection time more long, and can only fetching portion one point data, certainty of measurement is to a certain extent by measuring condition
Limitation, it is impossible to accurate overall deformation characteristics of reflection tunnel cross section so that these traditional shape changing detection technologies are not
Demand can be met.
Based on this, tunnel cross section is entered the utility model proposes a kind of Tunnel testing car based on scanning laser radar
Row data acquisition device.This device can be quickly to tunnel cross section data be acquired, and collection data precision it is high,
Detection time is shortened, the deficiency of traditional detection method can be made up.
The content of the invention
The utility model provides a kind of tunnel cross section data acquisition device based on scanning laser radar, with solution
State the problem in background technology.
The technical problem that the utility model is solved is achieved using following technical scheme.
A kind of tunnel cross section data acquisition device based on scanning laser radar, the device with vehicle as carrier, including：
Scanning laser radar, the first rotary encoder, the second rotary encoder, data acquisition unit and power supply；First rotary coding
Device and the second rotary encoder are connected with data device respectively, and data acquisition unit is connected with scanning laser radar, data acquisition
Device and scanning laser radar are connected with power supply respectively.
Further, data acquisition unit is to grind magnificent USB-4716 data acquisition units.
Further, first rotary encoder and the second rotary encoder are separately mounted to the front-wheel car of vehicle both sides
On axle, first rotary encoder and center line of second rotary encoder on vehicle are symmetrical.
Further, the scanning laser radar is arranged on vehicle roof center.
Compared with prior art, the utility model has following technique effect：
(1) the utility model uses scanning laser radar, and this contactless, real-time detection, experimentation cost is low, can be again
Renaturation is high, so that accuracy of detection is high；
(2) using grinding, magnificent USB-4716 data acquisition units are convenient to be fixed the utility model, and sampling rate is high, can directly adopt
The signal of collection scanning laser radar transmission；
(3) the utility model proposes device, can be acquired in the case where tunnel is not closed, so as to data be carried
Supply industrial computer treatment, and go out to detect tunnel cross section, detection and the contradiction runed in conventional method are solved, while avoiding
Conventional method condition of work it is severe, improve the precision of detection.
Brief description of the drawings
Fig. 1 is the schematic diagram of Tunnel testing car hardware composition of the present utility model；
Fig. 2 is rotary encoder position view of the present utility model；
Fig. 3 is course of work schematic diagram of the present utility model；
Fig. 4 is tunnel cross section detects schematic diagram of the present utility model；
Fig. 5 is circuit connection diagram of the present utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Embodiment
The present embodiment proposes a kind of tunnel cross section data acquisition device based on scanning laser radar, and the device is with car
Be carrier, including：Scanning laser radar, the first rotary encoder, the second rotary encoder, data acquisition unit and power supply；Institute
State the first rotary encoder and the second rotary encoder to be connected with data device respectively, data acquisition unit and scanning laser radar phase
Connection, data acquisition unit and scanning laser radar are connected with power supply respectively.
Specifically, the vehicle be Tunnel testing car, using Tunnel testing car as tunnel cross section detecting system shifting
Dynamic carrying platform, can detect in the case where tunnel is not closed to tunnel, with it is quick the characteristics of.
Specifically, data acquisition unit grinds magnificent USB-4716 data acquisition units and installs to grind magnificent USB-4716 data acquisition units
In the middle part of Tunnel testing car, near the position of vehicle-mounted industrial computer, particular location is referring to Fig. 1.
Further, first rotary encoder and the second rotary encoder are separately mounted to the front-wheel car of vehicle both sides
On axle, the center line of first rotary encoder and the second rotary encoder on vehicle is symmetrical, and particular location is referring to Fig. 2.
Specifically, the scanning laser radar is arranged on the centre position of vehicle roof, and particular location is referring to Fig. 1.
Referring to Fig. 3, a kind of tunnel cross section data acquisition device based on scanning laser radar is divided into specific work process
3 parts, triggering part, IMAQ part, part of data acquisition.
Triggering part during Tunnel testing car is travelled, the first rotary encoder on wheel, the second rotation
Turn the mechanical quantities such as angular displacement, angular speed that encoder passes through output shaft and be converted into corresponding pulse triggering signal, the signal is direct
It is transferred to scanning laser radar.
The now image acquisition part division of labor is made, i.e., scanning laser radar receives the first rotary encoder, the second rotary coding
After the pulse triggering signal that device is transmitted out, scanning laser radar is started working, and the laser of scanning laser radar transmitting exposes to tunnel
Road outer surface profile is returned by original route again, and time used, Ran Houke are received from being transmitted into by time counter calculating laser
With calculate scanning laser radar measured point to tunnel contour apart from when, while the scanner of scanning laser radar can be simultaneously
Recording level and vertical direction angle, so that it is determined that the three-dimensional coordinate of measured point.
The three-dimensional coordinate information that last scanning laser radar will be obtained is directly transferred to grind magnificent USB-4716 data acquisition units.
By grinding magnificent USB-4716 data acquisition units, the data to scanning laser radar transmission are stored.
In follow-up work, grind the data that magnificent USB-4716 data acquisition units will collect and be transferred to vehicle-mounted industrial computer
In.Vehicle-mounted industrial computer by process scanning laser radar transmit data so as to obtain a branch of bunch shape profile, using Three-dimensional Gravity
Build technology carries out automatic Reconstruction to tunnel cross section profile, so as to form complete tunnel cross section.
Using this kind of data acquisition device, processed with industrial computer, can obtain tunnel cross section figure as shown in Figure 4
Shape.When the tunnel cross section profile for detecting is normal, the curve of the tunnel cross section profile of formation is smooth；When detecting
When tunnel cross section profile is abnormal, the lines that these are detected are rough curve.The shape of all curves is reflected
Tunnel cross section profile situation.
Referring to Fig. 5, the first rotary encoder and the second rotary coding interface pass through wire and data acquisition unit to physical circuit
Connection.The storage battery that Tunnel testing car is carried provides the electricity of 24V to scanning laser radar, while being adopted to data as power module
Storage provides the electricity of 12V.Scanning laser radar is attached between data acquisition unit using Ethernet, so that one kind is based on
The tunnel cross section data acquisition device of scanning laser radar being capable of normal work.
Claims (4)
1. a kind of tunnel cross section data acquisition device based on scanning laser radar, the device with vehicle as carrier, its feature
It is, including：Scanning laser radar, the first rotary encoder, the second rotary encoder, data acquisition unit and power supply；Described
One rotary encoder and the second rotary encoder are connected with data device respectively, and data acquisition unit is connected with scanning laser radar
Connect, data acquisition unit and scanning laser radar are connected with power supply respectively.
2. tunnel cross section data acquisition device as claimed in claim 1, it is characterised in that data acquisition unit is to grind magnificent USB-
4716 data acquisition units.
3. tunnel cross section data acquisition device as claimed in claim 1, it is characterised in that first rotary encoder and
Second rotary encoder is separately mounted on the front wheel axle of vehicle both sides, first rotary encoder and the second rotary coding
Center line of the device on vehicle is symmetrical.
4. tunnel cross section data acquisition device as claimed in claim 1, it is characterised in that the scanning laser radar is installed
In vehicle roof center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621456089.3U CN206291893U (en) | 2016-12-28 | 2016-12-28 | A kind of tunnel cross section data acquisition device based on scanning laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621456089.3U CN206291893U (en) | 2016-12-28 | 2016-12-28 | A kind of tunnel cross section data acquisition device based on scanning laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206291893U true CN206291893U (en) | 2017-06-30 |
Family
ID=59155228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621456089.3U Expired - Fee Related CN206291893U (en) | 2016-12-28 | 2016-12-28 | A kind of tunnel cross section data acquisition device based on scanning laser radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206291893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927558A (en) * | 2020-10-13 | 2020-11-13 | 中国科学院武汉岩土力学研究所 | Safety early warning method and device for full-face tunneling of dynamic water weak surrounding rock tunnel |
| CN115127516A (en) * | 2022-06-27 | 2022-09-30 | 长安大学 | Multifunctional tunnel detection vehicle based on passenger car chassis |
-
2016
- 2016-12-28 CN CN201621456089.3U patent/CN206291893U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927558A (en) * | 2020-10-13 | 2020-11-13 | 中国科学院武汉岩土力学研究所 | Safety early warning method and device for full-face tunneling of dynamic water weak surrounding rock tunnel |
| CN111927558B (en) * | 2020-10-13 | 2021-01-12 | 中国科学院武汉岩土力学研究所 | Safety early warning method and device for full-face tunneling of dynamic water weak surrounding rock tunnel |
| CN115127516A (en) * | 2022-06-27 | 2022-09-30 | 长安大学 | Multifunctional tunnel detection vehicle based on passenger car chassis |
| CN115127516B (en) * | 2022-06-27 | 2024-02-02 | 长安大学 | Multifunctional tunnel detection vehicle based on chassis of passenger car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170630 Termination date: 20171228 |