CN110514130A - A kind of online tracking and monitoring system of bridge situation - Google Patents
A kind of online tracking and monitoring system of bridge situation Download PDFInfo
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- CN110514130A CN110514130A CN201910789658.8A CN201910789658A CN110514130A CN 110514130 A CN110514130 A CN 110514130A CN 201910789658 A CN201910789658 A CN 201910789658A CN 110514130 A CN110514130 A CN 110514130A
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- strain transducer
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- deformation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of online tracking and monitoring systems of bridge situation; the system comprises strain transducers; the strain transducer includes seal protection shell, laser emitter, reflecting plate, photoelectric screens; wherein: the seal protection shell is used to protect the internal components of strain transducer, and guarantees the independence of strain transducer internal environment；The laser emitter is for emitting light；The reflecting plate is used for the light of reflection laser transmitter transmitting；The photoelectric screens is used to receive and the light of perceived reflection plate reflection.System provided by the invention can not be limited by vehicle on bridge, no matter bridge is in static or dynamic, bridge, which can be obtained, according to the offset of light spot position on photoelectric screens is bent situation in real time, the bearing capacity that bridge can not only be monitored, can also monitor bridge expand with heat and contract with cold and aging conditions.
Description
Technical field
The invention belongs to Bridge Inspection field, in particular to a kind of online tracking and monitoring system of bridge situation.
Background technique
With the rapid development of transportation, bridge beam action, which seems, to become more and more important, but heavy due to task, bears
Lotus is excessive, and the health status of bridge is caused increasingly to decline, and in order to improve the safety of communications and transportation, needs the safe shape to bridge
Condition carries out online tracking and monitoring.
The prior art is in bridge two across in the intermediate measurement point between support, while installing the acceleration of vertical direction
The velocity sensor of sensor and vertical direction, acquire bridge when vehicle passes through generated vertical vibration acceleration and
Vertical vibration speed signal, by calculating to the signal and processing realize to bridge health safe condition it is quantitative with
Track.But this method can only monitor the healthy and safe situation of bridge in the case where there is vehicle by bridge, and bridge can occur
Expand with heat and contract with cold, though without vehicle, under the influence of expanding with heat and contract with cold, bridge also can deformation occurs, thus influence bridge health safety
Situation, and over time, bridge gradually aging, bridge also can deformation occurs, these are all safety existing for bridge
Hidden danger.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of online tracking and monitoring system of bridge situation, the system comprises strains
Sensor, the strain transducer include seal protection shell, laser emitter, reflecting plate, photoelectric screens, in which:
The seal protection shell is made of plastic material, for protecting the internal components of strain transducer, and guarantees to answer
Become the independence of sensor internal environment；
The laser emitter setting at least two, the laser emitter is located at the inside both ends of strain transducer and pass
It is symmetrical in strain transducer median vertical line, for emitting light；
The reflecting plate is arranged two, for the light of reflection laser transmitter transmitting, the reflection plate surface and laser
The light of transmitter transmitting is vertical, and isolation board is provided between two reflecting plates, and the isolation board is arranged in strain sensing
On the median vertical line of device, the isolation board is used for the sky that strain transducer inner space is divided into two independences and is independent of each other
Between；
The transmitting terminal side of laser emitter and parallel with reflecting plate is arranged in the photoelectric screens, anti-for receiving and perceiving
The light of plate reflection is penetrated, the photoelectricity screen surfaces are equipped with light hole, and light of the light hole for laser transmitter projects is logical
It crosses.
Further, the strain transducer is provided with deformation plate on one side, and the deformation plate is made of plastic material.
Further, the one side of the strain transducer is fixed together and fits closely with deformation plate surface.
Further, the deformation board ends are provided with telescopic installation supporting plate, and the installation supporting plate is using plastic
Material is made, and the installation branch plate surface is provided with mounting hole, and the mounting hole is for installing fixed deformation plate.
Further, the installation supporting plate side is provided with scale, and the scale is for comparing deformation board ends installation branch
The collapsing length of plate.
Further, deformation board ends surface is provided with fixing bolt, and the fixing bolt is for being fixedly mounted
Supporting plate.
Further, the system also includes processor, display, converters；
The switch input is connect with photoelectric screens output end, and the converter is for after perceiving light for photoelectric screens
The analog signal of generation is converted into digital signal, and the digital signal includes the offset of luminous point on the photoelectric screens of strain transducer both ends
Amount；
The processor input terminal is connect with converter output end, the processor by function model to digital signal into
Row processing calculates, and the function model is as follows:
P=40*L/ (S1+S2)
Wherein, P be bridge health index, L be strain transducer original state when the distance between photoelectric screens and reflecting plate,
S1、S2The offset of luminous point respectively on the photoelectric screens of strain transducer both ends；
The display input terminal is connect with processor output end, display interface and the photoelectric screens shape phase of the display
It together and scales up, for showing the variation of light spot position on photoelectric screens.
System provided by the invention can not be limited by vehicle on bridge, and no matter bridge is in static or dynamic, root
Bridge can be obtained according to the offset of light spot position on photoelectric screens and is bent situation in real time, can not only monitor the carrying of bridge
Ability, can also monitor bridge expand with heat and contract with cold and aging conditions.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Pointed structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 shows the strain transducer mounting structure schematic diagram of the embodiment of the present invention；
Fig. 2 shows the photoelectric screens schematic diagrames of the embodiment of the present invention；
Fig. 3 shows the bottom view of Fig. 1；
Fig. 4 shows the strain transducer schematic view of the mounting position of the embodiment of the present invention；
Fig. 5 shows monitoring point schematic diagram known to the monitoring of the embodiment of the present invention；
Fig. 6 shows time point position view in monitoring point known to the monitoring of the embodiment of the present invention；
Fig. 7 shows the unknown monitoring point schematic diagram of monitoring of the embodiment of the present invention；
Fig. 8 shows the unknown monitoring point time point position view of monitoring of the embodiment of the present invention.
In figure: 1, strain transducer；101, laser emitter；102, photoelectric screens；103, seal protection shell；104, it reflects
Plate；2, isolation board；3, light hole；4, deformation plate；5, supporting plate is installed；6, mounting hole；7, fixing bolt；8, bridge.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention clearly and completely illustrated, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention provides a kind of online tracking and monitoring systems of bridge situation, as shown in Figure 1, the system comprises strains to pass
Sensor 1, the strain transducer 1 include seal protection shell 103, laser emitter 101, reflecting plate 104, photoelectric screens 102.Specifically
, the seal protection shell 103 is made of plastic material, for protecting the internal components of strain transducer 1, and guarantees to strain
The independence of 1 internal environment of sensor；The setting of laser emitter 101 at least two, the laser emitter 101, which is located at, answers
Become the inside both ends of sensor 1 and symmetrical about 1 median vertical line of strain transducer, for emitting light；The reflecting plate 104 is set
Two are set, for the light that reflection laser transmitter 101 emits, 104 surface of reflecting plate emits with laser emitter 101
Light is vertical, and isolation board 2 is provided between two reflecting plates 104, and hanging down for strain transducer 1 is arranged in the isolation board 2
On straight middle line, the isolation board 2 is used for the space that 1 inner space of strain transducer is divided into two independences and is independent of each other；
The transmitting terminal side of laser emitter 101 and parallel with reflecting plate 104 is arranged in the photoelectric screens 102, for receiving and perceiving
The light that reflecting plate 104 reflects, 102 surface of photoelectric screens are equipped with light hole 3, and the light hole 3 is used for laser emitter 101
The light of transmitting passes through.
The strain transducer 1 is provided with deformation plate 4 on one side, and the deformation plate 4 is made of plastic material, the strain
The one side of sensor 1 is fixed together and fits closely with 4 surface of deformation plate.4 both ends of deformation plate are provided with scalable
Installation supporting plate 5, the installation supporting plate 5 is made of plastic material, and 5 side of installation supporting plate is provided with scale, the quarter
Spend the collapsing length for comparing 4 both ends of deformation plate installation supporting plate 5.As shown in figure 3,5 surface of installation supporting plate is provided with peace
Hole 6 is filled, for the mounting hole 6 for installing fixed deformation plate 4,4 liang of end surfaces of the deformation plate are provided with fixing bolt 7, institute
Fixing bolt 7 is stated for supporting plate 5 to be fixedly mounted.
The system also includes processor, display, converters；The switch input and 102 output end of photoelectric screens
Connection, the converter are converted into digital signal, the number for photoelectric screens 102 to be perceived the analog signal generated after light
Word signal includes the offset of luminous point on 1 both ends photoelectric screens 102 of strain transducer；The processor input terminal and converter export
End connection, the processor carry out processing calculating to digital signal by function model, and the function model is as follows:
P=40*L/ (S1+S2)
Wherein, P be 8 health index of bridge, L be 1 original state of strain transducer when photoelectric screens 102 and reflecting plate 104 it
Between distance, S1、S2The offset of luminous point respectively on 1 both ends photoelectric screens 102 of strain transducer；The display input terminal with
The connection of processor output end, the display interface of the display is identical as 102 shape of photoelectric screens and scales up, for showing
The variation of light spot position on photoelectric screens 102.
Illustratively, Fig. 1 shows the strain transducer mounting structure schematic diagram of the embodiment of the present invention, as shown in Figure 1, answering
Become 1 middle position of sensor and be equipped with isolation board 2, strain transducer 1 is whole to be symmetrical arranged about isolation board 2, and isolation board 2 will
1 inner space of strain transducer is divided into two spaces that are mutually indepedent, being independent of each other.Each separate space of strain transducer 1
In include laser emitter 101, reflecting plate 104, photoelectric screens 102, specifically, laser emitter 101 in each separate space
Settable one, two or three, but not limited to this, a Laser emission to be arranged in each separate space in the present embodiment
It is illustrated for device 101, i.e., there are two laser emitters 101 altogether in strain transducer 1, for emitting light.Isolation board 2
Two sides are equipped with reflecting plate 104, are used for reflection light, and when 1 original state of strain transducer, laser emitter 101 is launched
Light it is vertical with reflecting plate 104.The transmitting terminal of laser emitter 101 is equipped with photoelectric screens 102 on one side, anti-for receiving and perceiving
Penetrate the light of the reflection of plate 104.Photoelectric screens 102 is photosensitive element, when light is radiated at 102 different location of photoelectric screens, photoelectric screens
The 102 analog signal differences generated.102 one side of photoelectric screens and the transmitting terminal side of laser emitter 101 fit closely, and strain passes
When 1 original state of sensor, photoelectric screens 102 is parallel with reflecting plate 104.Fig. 2 shows the photoelectric screens schematic diagram of the embodiment of the present invention,
As shown in Fig. 2, 102 surface of photoelectric screens is equipped with light hole 3, the light hole 3 for the ease of the coordination of device structure, in the present embodiment
The middle position on 102 surface of photoelectric screens is set, but not limited to this, the diameter of light hole 3 should not be arranged it is excessive, in order to not influence
The diameter setting of the perceived effect of photoelectric screens 102, light hole 3 is very small, it is preferred that and diameter is set as 0.04mm~0.07mm,
The light that laser emitter 101 emits can pass through from light hole 3 and reach reflecting plate 104.The outside of strain transducer 1 is equipped with
Seal protection shell 103 for protecting the internal components of strain transducer 1, and guarantees the independence of 1 internal environment of strain transducer
Property, wherein seal protection shell 103 is made of plastic material, is bent and restores convenient for strain transducer 1.Strain transducer 1 one
Face is provided with deformation plate 4, and the middle line of strain transducer 1 is overlapped with the middle line of deformation plate 4, and the surface of deformation plate 4 and strain
It the one side fixation of sensor 1 and fits closely, wherein deformation plate 4 is made of plastic material, is bent convenient for deformation plate 4 and multiple
It is former.4 both ends of deformation plate are provided with telescopic installation supporting plate 5, and installation supporting plate 5 is conducive to improve deformation plate 4 and strain passes
The sensitivity of 1 deformation of sensor installs supporting plate 5 and deformation plate 4 as a whole specifically, when installing supporting plate 5 and pulling out
Length will increase, and length is longer, and object is more easy to happen deformation, therefore the sensitivity of 4 deformation of deformation plate will improve, again
Because strain transducer 1 and deformation plate 4 are fixed and fitted closely together, when deformation occurs for deformation plate 4, strain just will drive
Deformation occurs together for sensor 1, therefore the sensitivity of 1 deformation of strain transducer can also improve.Wherein the use of installation supporting plate 5 can
Moulding material is made, and installation 5 side of supporting plate is provided with scale, and scale is used to compare the flexible length of 4 both ends of deformation plate installation supporting plate 5
Degree, illustratively, when the installation supporting plate 5 when 4 one end of deformation plate pulls out certain length, the installation supporting plate 5 of 4 other end of deformation plate
It is also required to pull out same length, after the pull-out of supporting plate 5 is installed, checks the scale that the installation supporting plate 5 is pulled out from 4 one end of deformation plate
Number.Illustratively, by taking 5m as an example, the installation supporting plate 5 of 4 other end of deformation plate also pulls out the length of 5m according to scale, passes through scale
The length for advantageously ensuring that the installation supporting plate 5 at 4 both ends of deformation plate pulls out is identical.
Fig. 3 shows the bottom view of Fig. 1, as shown in figure 3, installation 5 surface of supporting plate is provided with mounting hole 6, mounting hole 6 is used for
Fixed deformation plate 4 is installed, illustratively, each 5 surface of installation supporting plate be respectively provided with there are two mounting hole 6.4 liang of end surfaces of deformation plate
It is provided with fixing bolt 7, fixing bolt 7 is for being fixedly mounted supporting plate 5, and illustratively, the every end of deformation plate 4 is provided with one
Fixing bolt 7.
When the system works, it needs first to select one or more monitoring points, to be respectively mounted one on each monitoring point in 8 bottom of bridge
A strain transducer 1, the present embodiment are illustrated by taking a monitoring point as an example, illustratively, as shown in figure 4, in 8 bottom of bridge
A monitoring point is selected, deformation plate 4 is tightly attached to 8 bottom of bridge, deformation plate 4 is parallel with bridge 8, and the center of deformation plate 4
The monitoring point with bridge 8 is put on same vertical line, the installation supporting plate 5 at 4 both ends of deformation plate is pulled out into 5m respectively, tightens fixed spiral shell
Bolt 7 fixes installation supporting plate 5, then fixes screw together on the position deformation plate 4 and installation supporting plate 5 by mounting hole 6.
When the vehicle on bridge 8 is excessive or bridge 8 expands with heat and contract with cold or 8 aging of bridge, bridge 8 is prone to bending, when bridge 8
When the degree of bending is more than limit value, bridge 8 just will appear fracture, and the minimum point of especially 8 bending part of bridge is easiest to send out
The case where raw fracture, i.e. monitoring point, need online tracking and monitoring, understand monitoring point in time.Wherein, about monitoring point, there are two types of feelings
Condition, one is the positions of known monitoring point, that is, know the position that needs monitor；Another kind is the position of unknown monitoring point, i.e., temporarily
When which specific location of the monitoring do not known.
Illustratively, Fig. 5 shows monitoring point schematic diagram known to the monitoring of the embodiment of the present invention, as shown in figure 5, bridge 8
Known monitoring location is bent, and since deformation plate 4 is to be close to and be fixed on 8 bottom of bridge, deformation plate 4 also can be with
The bending of bridge 8 and bend, and then strain transducer 1 bends.When 1 original state of strain transducer, Laser emission
Device 101 emit light it is vertical with reflecting plate 104, i.e., laser emitter 101 transmitting light in horizontal direction.Work as strain sensing
When device 1 bends, laser emitter 101 will appear swing, and the light and reflecting plate 104 that laser emitter 101 emits are just not
It is plumbness, the light and horizontal line that left end laser emitter 101 emits have an angle α, right end laser emitter 101
The light and horizontal line of transmitting have an angle β, and the position that light is penetrated on reflecting plate 104 can shift.When light with
When the direction directive reflecting plate 104 made an angle alpha with horizontal line, light can be to reflect, at this time with the direction that horizontal line makes an angle alpha
Angle between incident ray and reflection light is 2 α；It is in the direction directive reflecting plate 104 of angle β with horizontal line when light
When, light can be to reflect with horizontal line in the direction of angle β, and the angle between incident ray and reflection light is 2 β at this time.
The position that light is penetrated on photoelectric screens 102 can shift, and position offset of the light on photoelectric screens 102 is greater than light
The increase of position offset on reflecting plate 104, offset can amplify the subtle variation of bridge 8, be conducive to see
It examines and calculates, improve accuracy.Since strain transducer 1 is in the monitoring location of bridge 8, strain transducer 1 is curved
The light of Qu Shi, the transmitting of 1 both ends laser emitter 101 of strain transducer pass through the reflection of reflecting plate 104, and light can all fall in light
The lower half portion of electric screen 102.Photoelectric screens 102 can generate corresponding analog signal after perceiving light, include to answer in analog signal
Become the offset of luminous point on 1 both ends photoelectric screens 102 of sensor, analog signal is converted into digital signal and is sent to by converter
Processor, processor is according to function model
P=40*L/ (S1+S2)
Calculate the health status for learning currently known monitoring point, wherein P is 8 health index of bridge, and L is strain transducer 1
The distance between photoelectric screens 102 and reflecting plate 104, S when original state1、S2Respectively on 1 both ends photoelectric screens 102 of strain transducer
The offset of luminous point, while luminous point can be shown on the display interface corresponding position of display, as shown in fig. 6, carrying out intuitive
It shows, observes and study convenient for staff.Illustratively, L takes 5m, S1、S23,5 are taken respectively, are substituted into function model and fallen into a trap
Calculation learns that P is 25.
Illustratively, Fig. 7 shows the unknown monitoring point schematic diagram of monitoring of the embodiment of the present invention, as shown in fig. 7, strain passes
Sensor 1 is mounted on the non-monitored point position of bridge 8, and the unknown monitoring location of bridge 8 is bent, since deformation plate 4 is to be close to
And it is fixed on 8 bottom of bridge, therefore deformation plate 4 can also bend with the bending of bridge 8, and then strain transducer 1 is sent out
Raw bending, wherein the principle of light offset is identical as known monitoring point is monitored.Since strain transducer 1 is in the non-prison of bridge 8
Point position, therefore when the bending of strain transducer 1, the light of 1 both ends laser emitter 101 of strain transducer transmitting is by reflection
The reflection of plate 104, light can all be fallen on photoelectric screens 102, specific: when unknown monitoring location is installed in strain transducer 1
When the right of position, 1 left end light of strain transducer can fall in the lower half portion of left end photoelectric screens 102,1 right end of strain transducer
Light can fall in the top half of right end photoelectric screens 102；When unknown monitoring location is on the left side of 1 installation site of strain transducer
When, 1 left end light of strain transducer can fall in the top half of left end photoelectric screens 102, and 1 right end light of strain transducer can be fallen in
The lower half portion of right end photoelectric screens 102.The present embodiment is on the right of 1 installation site of strain transducer with unknown monitoring location
Example is illustrated, and photoelectric screens 102 can generate corresponding analog signal after perceiving light, and analog signal is converted by converter
Digital signal is simultaneously sent to processor, and digital signal can correspond to position in the display interface of display after the processing of processor
Display luminous point is set, such as the unknown monitoring point time point position view of monitoring that Fig. 8 shows the embodiment of the present invention, passes through observation
Top half or lower half portion after deflection of optical point in both ends photoelectric screens 102 can learn unknown monitoring point in strain transducer 1
Which side of installation site, by installing multiple strain transducers 1, so that it may gradually determine the specific location of unknown monitoring point,
And then tracking and monitoring is carried out to the monitoring point.
Therefore, for known monitoring point, this system can be directly monitored it, for unknown monitoring point, this system
Monitoring location can be judged by the change in location of luminous point, complete online tracking and monitoring.
System provided by the invention can not be limited by vehicle on bridge 8, and no matter bridge 8 is in static or dynamic,
The bending situation in real time of bridge 8 can be obtained according to the offset of light spot position on photoelectric screens 102.When heat expansion occurs for bridge 8
Shrinkage and aging conditions, bridge 8 can deformation occurs, but the speed of its deformation is very slow, thus bridge 8 can be continuously in it is a certain
Deformed state is for a period of time.If bridge 8 is continuously in a certain deformed state for a period of time, later period deformation restores, and system is then assert
Bridge 8 expands with heat and contract with cold, and health status when learning that bridge 8 expands with heat and contract with cold according to the deformation degree of bridge 8；If bridge
Beam 8 is continuously in a certain deformed state for a period of time, and later period deformation does not restore, system then assert bridge 8 occur aging, and according to
The deformation degree of bridge 8 learns health status when aging occurs for bridge 8.
Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should manage
Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (7)
1. a kind of online tracking and monitoring system of bridge situation, the system comprises strain transducer (1), which is characterized in that described
Strain transducer (1) includes seal protection shell (103), laser emitter (101), reflecting plate (104), photoelectric screens (102),
In:
The seal protection shell (103) is made of plastic material, for protecting the internal components of strain transducer (1), and is protected
Demonstrate,prove the independence of strain transducer (1) internal environment；
Laser emitter (101) setting at least two, the laser emitter (101) is located at the interior of strain transducer (1)
Portion both ends and symmetrical about strain transducer (1) median vertical line, for emitting light；
The reflecting plate (104) is arranged two, for the light of reflection laser transmitter (101) transmitting, the reflecting plate (104)
Surface is vertical with the light that laser emitter (101) emits, and is provided with isolation board (2), institute between two reflecting plates (104)
It states isolation board (2) to be arranged on the median vertical line of strain transducer (1), the isolation board (2) is used for will be in strain transducer (1)
The space that portion space is divided into two independences and is independent of each other；
The photoelectric screens (102) setting is used in the transmitting terminal side of laser emitter (101) and parallel with reflecting plate (104)
It receives and the light of perceived reflection plate (104) reflection, photoelectric screens (102) surface is equipped with light hole (3), the light hole
(3) light for laser emitter (101) transmitting passes through.
2. the online tracking and monitoring system of bridge situation according to claim 1, which is characterized in that the strain transducer
(1) it is provided on one side deformation plate (4), the deformation plate (4) is made of plastic material.
3. the online tracking and monitoring system of bridge situation according to claim 2, which is characterized in that the strain transducer
(1) one side is fixed together and fits closely with deformation plate (4) surface.
4. the online tracking and monitoring system of bridge situation according to claim 2, which is characterized in that the deformation plate (4) two
End is provided with telescopic installation supporting plate (5), and the installation supporting plate (5) is made of plastic material, the installation supporting plate (5)
Surface is provided with mounting hole (6), and the mounting hole (6) is for installing fixed deformation plate (4).
5. the online tracking and monitoring system of bridge situation according to claim 4, which is characterized in that the installation supporting plate (5)
Side is provided with scale, and the scale is used to compare the collapsing length of deformation plate (4) both ends installation supporting plate (5).
6. according to the described in any item online tracking and monitoring systems of bridge situation of claim 2-5, which is characterized in that the deformation
(4) two end surfaces of plate are provided with fixing bolt (7), and the fixing bolt (7) is for being fixedly mounted supporting plate (5).
7. the online tracking and monitoring system of bridge situation according to claim 1-5, which is characterized in that the system
It further include processor, display, converter；
The switch input is connect with photoelectric screens (102) output end, and the converter is for perceiving photoelectric screens (102)
The analog signal generated after light is converted into digital signal, and the digital signal includes strain transducer (1) both ends photoelectric screens
(102) offset of luminous point on；
The processor input terminal is connect with converter output end, the processor by function model to digital signal at
Reason calculates, and the function model is as follows:
P=40*L/ (S1+S2)
Wherein, P is bridge (8) health index, photoelectric screens (102) and reflecting plate when L is strain transducer (1) original state
The distance between (104), S1、S2The offset of luminous point respectively on strain transducer (1) both ends photoelectric screens (102)；
The display input terminal is connect with processor output end, the display interface and photoelectric screens (102) shape of the display
It is identical and scale up, for showing the variation of light spot position on photoelectric screens (102).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114689016A (en) * | 2022-04-02 | 2022-07-01 | 山东省煤田地质局物探测量队 | Geological environment monitoring device and monitoring method thereof |
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| KR101718308B1 (en) * | 2016-10-21 | 2017-03-22 | 한국건설기술연구원 | System for monitoring pylon inner deterioration of cable bridge having reed switch-based lighting lamp for imaging acquisition, and method for the same |
| CN109520465A (en) * | 2019-01-08 | 2019-03-26 | 同济大学 | The fixed device of the adjustable strain transducer of gauge length |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114689016A (en) * | 2022-04-02 | 2022-07-01 | 山东省煤田地质局物探测量队 | Geological environment monitoring device and monitoring method thereof |
| CN114689016B (en) * | 2022-04-02 | 2022-09-13 | 山东省煤田地质局物探测量队 | Geological environment monitoring device and monitoring method thereof |
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