CN205664921U - Dynamic weighing system based on fiber grating sensing technology - Google Patents
Dynamic weighing system based on fiber grating sensing technology Download PDFInfo
- Publication number
- CN205664921U CN205664921U CN201620564898.XU CN201620564898U CN205664921U CN 205664921 U CN205664921 U CN 205664921U CN 201620564898 U CN201620564898 U CN 201620564898U CN 205664921 U CN205664921 U CN 205664921U
- Authority
- CN
- China
- Prior art keywords
- vehicle
- fiber grating
- sensing device
- information
- converter
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model relates to a dynamic weighing system based on fiber grating sensing technology is mainly by mechanical grating sensing device, fiber grating demodulated equipment, system information platform triplex, and the wherein mechanical grating sensing device load that is used for bearing the vehicle is fiber grating sensor wavelength shift with the relevant information into of vehicle, the fiber grating demodulated equipment passes through internal algorithm and measures the relevant information of demodulation for the vehicle with the wavelength shift, demonstration, storage and the management of vehicle relevant information are realized to the system information platform. Simple structure is reliable in this system, and it is high to detect the precision, relevant information that can the different vehicles of real -time detection, and overload that supplementary road management personnel accomplished the vehicle is declared in advance, the overload alarm and the tunnel protection of bridge.
Description
Technical field
This utility model belongs to highway administration technical field, is specifically related to a kind of based on fiber grating sensing technology dynamic
Weighing system, is a kind of mainly for detection of vehicle axle weight, wheelspan, wheelbase, speed and the system realizing vehicle cab recognition, belongs to
Automatic detection device.
Background technology
In recent years, economic fast development so that transportation presents the spy of " big flow, heavy duty and canalized traffic "
Point.Car load increases and a large amount of existence of overload problems causes highway pavement seriously to be damaged, and bridge life is accelerated to shorten, and hands over
Logical Frequent Accidents.Understand axle according to " the biquadratic principle " of relation between automobile shafts mounted mass and road surface and carry increase 2 times, road surface
Damaging will be increased to about original 16 times, causes the maintenance cost of annual highway bridge to increase.Although causing highway bridge to damage
Bad reason has a lot, but heavy duty and overload problems are the main reasons causing damage.
The Main Means taked for heavy duty and overload problems has the weight metering charging of slip-road and monitoring of transfiniting
Stand, generally utilize at these overload remediation stations resistance-strain chip technology to make the measurement equipment such as weighing unit, bent plate and carry out vehicle meter weight.By
Belong to active device in sensors such as foil gauges, easily affected by road environment, electromagnetic interference, outside climatic etc., cause and weigh
Arrangement works bad environments, precise decreasing, it is easy to cause the inefficacy of system.And fiber-optic grating sensor has electromagnetism interference
By force, electrical insulating property is good, corrosion resistance is strong, stable performance, security performance are good etc. advantage, the application in every field in recent years
Gradually increase, therefore invent a kind of dynamic weighing system based on fiber grating sensing technology and be necessary.
Utility model content
In consideration of it, the purpose of this utility model is for the shortcoming and defect overcoming prior art to exist, invent one
Dynamic weighing system based on fiber grating sensing technology, it can the axle weight of real time dynamic measurement vehicle, wheelspan, speed, vehicle
Etc. information.This system mechanics is simple and reliable for structure, and fiber-optic grating sensor is highly sensitive, and grating demodulation instrument demodulation accuracy is high, whole
Machine stability is strong, real-time good, strong interference immunity.
This utility model is claimed a kind of dynamic weighing system based on fiber grating sensing technology, this system mainly by
Mechanical shutters sensing device, fiber grating demodulation equipment and system information platform three part are sequentially connected with composition:
Mechanical shutters sensing device, for the load-carrying of vehicle, passes the fiber grating that is converted into for information about of vehicle
The wavelength shift of sense array；
Fiber grating demodulation equipment, for being demodulated into the relevant letter of vehicle by built-in demodulating algorithm by wavelength shift
Breath；
System software platform, for realizing the display of vehicle-related information, storing and manage.
Further, described mechanical shutters sensing device is by loading plate, stopping means, equi intensity cantilever, fiber grating
Array, outer container form.
Further, described fiber grating demodulation equipment is by wideband light source, optoisolator, bonder, F-P wave filter, light
Electricity converter, A/D converter, ARM, D/A converter, FC/APC joint composition.
Compared with prior art, the advantage of dynamic weighing system based on fiber grating sensing technology is:
This system mechanics is simple and reliable for structure, and fiber-optic grating sensor is highly sensitive, and grating demodulation instrument demodulation accuracy is high, whole
Machine stability is strong, real-time good, strong interference immunity.This system can be not only used for the overload anticipation of all vehicles on highway, bridge
The overload warning of beam and protecting tunnel, it is also possible to the data collecting, adding up driving vehicle on highway (includes vehicle flowrate, car
Speed, wheelbase, the number of axle etc.) and the distribution proportion of type of vehicle, for design, reinforcing, maintenance and the intelligent transportation of highway bridge
Exploitation data and technical support are provided, be significant.
Accompanying drawing explanation
Fig. 1 is system overall flow schematic diagram involved in the present invention.
Fig. 2 is system mechanics grating sensing device internal layout involved in the present invention.
Fig. 3 is system fiber grating demodulation device interior schematic flow sheet involved in the present invention.
Detailed description of the invention
Below by specific embodiment, the utility model is described in further detail, and following example are illustrative, no
It is determinate, it is impossible to limit protection domain of the present utility model with this.
As it is shown in figure 1, the dynamic weighing system based on fiber grating sensing technology being claimed for this utility model, should
System is mainly sequentially connected with group by mechanical shutters sensing device 1, fiber grating demodulation equipment 2 and system information platform 17 3 part
Become；
Mechanical shutters sensing device 1, for the load-carrying of vehicle, passes the fiber grating that is converted into for information about of vehicle
The wavelength shift of sense array；
Fiber grating demodulation equipment 2 by built-in demodulating algorithm wavelength shift is demodulated into the relevant information of vehicle (as
Axle weight, wheelspan, speed, vehicle etc.)；
System software platform 17 realizes the display of vehicle-related information, stores and manage.
Fig. 2 is system mechanics grating sensing device 1 cut-away view, and mechanical shutters sensing device 1 mainly includes loading plate
3, stopping means 4, equi intensity cantilever 5, optical fiber optical grating array 6, outer container 7.Loading plate 3 side and outer container 7 are by riveting form
Being connected, loading plate 3 other side is built on equi intensity cantilever 5.It is axial that optical fiber optical grating array 6 is arranged in loading plate 3
Surface and equi intensity cantilever 5 root surface, for perception loading plate 3 and the strain of equi intensity cantilever 5.Optical fiber optical grating array
6 are connected with fiber grating demodulation equipment 2.Stopping means 4 is connected with outer container 7 base plate, is used for preventing loading plate 3 and equal strength cantilever
Beam 5 overbending deforms.
Fig. 3 is system fiber grating demodulation equipment 2 internal structure schematic diagram, this equipment mainly include wideband light source 8, light every
From device 9, bonder 10, F-P wave filter 11, photovoltaic converter 12, A/D converter 13, ARM14, D/A converter 15, FC/APC
Joint 16.Wideband light source 8 is connected with optoisolator 9, and optoisolator 9 is connected with bonder 10, bonder 10 respectively with FC/APC
Joint 16 is connected with F-P wave filter 11, and FC/APC joint 16 is connected with optical fiber optical grating array 6, F-P wave filter 11 respectively with D/A
Transducer 15 is connected with photovoltaic converter 12, and photovoltaic converter 12 is connected with A/D converter 13, ARM14 respectively with A/D converter
13, D/A converter 15 is connected with system software platform 17.
The workflow of the dynamic weighing system based on fiber grating sensing technology that this utility model relates to is:
When vehicle drives through loading plate 3, cause loading plate 3 and the deformation of equi intensity cantilever 5.Loading plate 3 and grade are strong
The deformation of degree cantilever beam 5 causes the deformation of optical fiber optical grating array 6, causes the wavelength shift of optical fiber optical grating array 6 further.Broadband
The incident illumination that light source 8 sends enters optical fiber optical grating array 6 through optoisolator 9 and bonder 10.When incident illumination runs into optical fiber light
Will reflect after grid array 6, the reflection light carrying wavelength shift information sequentially enters tunable narrow-band fiber F-P wave filter
11.It is long to the chamber controlling F-P wave filter 11 that ARM14 control D/A converter 15 exports zigzag wave scanning voltage, the change of chamber length
F-P wave filter 11 is caused to turn on the change of centre wavelength.Conducting centre wavelength and a certain fiber grating when F-P wave filter 11
When reflection wavelength is equal, has and only a reflection light can enter photovoltaic converter 12 by F-P wave filter 11, then through A/D
Converter 13 enters ARM14.Demodulating algorithm built-in for ARM14 demodulates the wavelength of different fiber-optic grating sensor.Pass through wavelength
Variable quantity can calculate the parameters such as the axle weight of vehicle, axial length, vehicle with the corresponding relation of information of vehicles, demodulates the most at last
Information of vehicles be sent to system information platform by serial ports or network interface form and carry out showing, store and managing.
This utility model is applied specific embodiment principle of the present utility model and embodiment are set forth, above
The explanation of embodiment is only intended to help to understand method of the present utility model and core concept thereof, for the general technology of this area
The every other embodiment that personnel are obtained under not making creative work premise, broadly falls into protection of the present utility model
Scope.
Claims (3)
1. a dynamic weighing system based on fiber grating sensing technology, this system is mainly by mechanical shutters sensing device, light
Fine grating demodulation equipment and system information platform three part are sequentially connected with composition, it is characterised in that:
Mechanical shutters sensing device, for the load-carrying of vehicle, is converted into optical fiber grating sensing battle array for information about by vehicle
The wavelength shift of row；
Fiber grating demodulation equipment, for being demodulated into the relevant information of vehicle by built-in demodulating algorithm by wavelength shift；
System software platform, for realizing the display of vehicle-related information, storing and manage.
2. the system as claimed in claim 1, described mechanical shutters sensing device is by loading plate, stopping means, equal strength cantilever
Beam, optical fiber optical grating array, outer container form.
3. the system as claimed in claim 1, described fiber grating demodulation equipment is by wideband light source, optoisolator, bonder, F-
P wave filter, photovoltaic converter, A/D converter, ARM, D/A converter, FC/APC joint form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620564898.XU CN205664921U (en) | 2016-06-13 | 2016-06-13 | Dynamic weighing system based on fiber grating sensing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620564898.XU CN205664921U (en) | 2016-06-13 | 2016-06-13 | Dynamic weighing system based on fiber grating sensing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205664921U true CN205664921U (en) | 2016-10-26 |
Family
ID=57154758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620564898.XU Expired - Fee Related CN205664921U (en) | 2016-06-13 | 2016-06-13 | Dynamic weighing system based on fiber grating sensing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205664921U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990926A (en) * | 2017-11-23 | 2018-05-04 | 武汉理工大学 | Fiber grating based on wavelength shift locks demodulating system and method one by one |
| CN108775951A (en) * | 2018-06-07 | 2018-11-09 | 徐州西尼科自动化控制技术有限公司 | A kind of vehicle dynamic weighing system |
| CN110108340A (en) * | 2019-06-04 | 2019-08-09 | 西北铁道电子股份有限公司 | A kind of automobile dynamically weighing device |
| CN110987137A (en) * | 2019-12-13 | 2020-04-10 | 武汉理工大学 | Mining vehicle weighing system and method based on fiber bragg grating sensor |
| CN111397713A (en) * | 2019-12-02 | 2020-07-10 | 宁波柯力传感科技股份有限公司 | Narrow plate weighing device |
| CN112729507A (en) * | 2019-10-14 | 2021-04-30 | 同济大学 | Road surface dynamic monitoring device and system |
-
2016
- 2016-06-13 CN CN201620564898.XU patent/CN205664921U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990926A (en) * | 2017-11-23 | 2018-05-04 | 武汉理工大学 | Fiber grating based on wavelength shift locks demodulating system and method one by one |
| CN107990926B (en) * | 2017-11-23 | 2019-08-20 | 武汉理工大学 | Fiber grating based on wavelength shift locks demodulating system and method one by one |
| CN108775951A (en) * | 2018-06-07 | 2018-11-09 | 徐州西尼科自动化控制技术有限公司 | A kind of vehicle dynamic weighing system |
| CN110108340A (en) * | 2019-06-04 | 2019-08-09 | 西北铁道电子股份有限公司 | A kind of automobile dynamically weighing device |
| CN110108340B (en) * | 2019-06-04 | 2024-03-22 | 西北铁道电子股份有限公司 | Dynamic weighing device for automobile |
| CN112729507A (en) * | 2019-10-14 | 2021-04-30 | 同济大学 | Road surface dynamic monitoring device and system |
| CN111397713A (en) * | 2019-12-02 | 2020-07-10 | 宁波柯力传感科技股份有限公司 | Narrow plate weighing device |
| CN111397713B (en) * | 2019-12-02 | 2021-06-29 | 宁波柯力传感科技股份有限公司 | Narrow plate weighing device |
| CN110987137A (en) * | 2019-12-13 | 2020-04-10 | 武汉理工大学 | Mining vehicle weighing system and method based on fiber bragg grating sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205664921U (en) | Dynamic weighing system based on fiber grating sensing technology | |
| CN107064476B (en) | Road airport bituminous pavement modulus back-calculation device and method based on pavement monitoring | |
| CN110926523A (en) | High-speed railway bridge safety perception and early warning system under complicated abominable condition | |
| CN101712328B (en) | Matched fiber grating based axle-counting device of high-speed railway | |
| CN104401359B (en) | Dynamic detecting system for wheel sets of high-speed train | |
| CN104121889B (en) | A kind of shaft tower inclination monitoring system based on BOTDR distributing optical fiber sensing and method | |
| CN110476042A (en) | For measuring the embedded system of the weight in vehicle and container He other physical descriptors | |
| CN111521248B (en) | Fiber grating vehicle dynamic weighing sensor, device and method | |
| CN202518951U (en) | Hoisting machine health monitoring system based on fiber bragg grating sensing technology | |
| CN107817743A (en) | A kind of bridge security online monitoring system | |
| CN210293409U (en) | Bidirectional six-lane highway main line dynamic vehicle weighing system | |
| CN106644326A (en) | Bridge load limit fast monitoring system based on dynamic deflection | |
| CN101172561A (en) | Real time on-line safety monitoring system for container crane | |
| CN101576477B (en) | Pavement friction coefficient testing car | |
| CN108011135A (en) | A kind of cell expansion measuring method and system | |
| CN102252740A (en) | Vehicle dynamic weighing sensor | |
| CN207300447U (en) | Bridge security monitoring device based on optical fiber sensing technology | |
| CN102183374A (en) | Optical fiber sensing automobile running deviation on-line automatic detection system | |
| CN206656789U (en) | A kind of train dynamic weigher | |
| CN117470695A (en) | Roadbed service state assessment method and system under dynamic load-dry-wet cycle coupling effect | |
| CN113188448A (en) | Three-dimensional visual online monitoring system and monitoring method for displacement of landslide mass | |
| CN105466596A (en) | Train axle temperature monitoring system based on fluorescence fiber temperature measurement | |
| CN106932068A (en) | A kind of train dynamic weighing method and device | |
| CN100367324C (en) | Expressway dynamic weight and speed monitoring device | |
| CN204405054U (en) | Based on the multi-path static level device of fiber-optic grating sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161026 Termination date: 20190613 |