CN103925896B - Skew bridge loading test loads Vehicle positioning system and method - Google Patents

Abstract

The invention discloses a kind of skew bridge loading test and load Vehicle positioning system and method, arrange including meter ruler, skew bridge pitch level's angle goniometer, computer and vehicle and control device, vehicle arranges that controlling device includes before the right side vertical marker post, left back vertical marker post and left front vertical marker post behind vertical marker post, the right side, and front sensing rope, senses rope, right generating laser, right laser pickoff, left generating laser, left laser pickoff and vehicle layout controller afterwards；Front sensing rope and rear sensing rope are constituted by the rope made of hemp, Reflective adhesive tape and pressure transducer.Its method includes step: one, parameter measurement and parameter are arranged, two, the position coordinate of loading vehicle is calculated, three, according to load vehicle position coordinate arrange vehicle arrange control device, four, by vehicle arrange control device to load vehicle position.The present invention is capable of skew bridge loading test cloth car accurate, quick, improves the test efficiency of skew bridge loading test and the reliability of experimental data.

Description

Skew bridge loading test loads Vehicle positioning system and method

Technical field

The invention belongs to skew bridge loading test technical field, be specifically related to a kind of skew bridge loading test and load vehicle location system System and method.

Background technology

Along with national sustained economic development and overall national strength persistently strengthen, drive the comprehensive, fast of China Higher level highway The development of speed.In order to obey the plane figure of route and improve bridge use and security performance, skew bridge is got at the proportion of structure Come the biggest, therefore, to the design of skew bridge, detect and assess there is important practical value.

Skew bridge loading test is the scientific experiments work that skew bridge works is loaded directly into test, is used for understanding The actual working state of skew bridge, thus judge safe bearing capacity and the quantity of operation of assessment skew bridge of skew bridge structure.Additionally, it is logical Cross the completion loading test to newly-built skew bridge structure, then can be development skew bridge design theory and raising construction technology level, constantly Ground accumulates technical data and provides the foundation of science.

At present, Highway Bridge load test mainly determines according to numerical analysis model that loading the theoretical of vehicle loads position Put, then utilize the instrument such as meter ruler, ruler to delimit at bridge floor and load vehicle loading position, be finally completed the layout loading vehicle. But for different bridge types, especially for skew bridge, owing to being limited by factors such as skew bridge gradient, bridge deck widths, cause loading test Actual vehicle loading position there is deviation with theoretical vehicle loading position, thus impact is to the safe bearing load judging bridge structure Ability and the quantity of operation assessment result of assessment bridge.

Summary of the invention

The technical problem to be solved is for above-mentioned deficiency of the prior art, it is provided that a kind of structure letter Single, novel in design rationally, realize convenient, use simple operation, be capable of the skew bridge of skew bridge loading test accurately quick cloth car Loading test loads Vehicle positioning system.

For solving above-mentioned technical problem, the technical solution used in the present invention is: it is fixed that a kind of skew bridge loading test loads vehicle Position system, it is characterised in that: include the meter ruler for the length and width loading vehicle is measured, for skew bridge gradient The skew bridge pitch level's angle goniometer measured, for calculating the computer of the position loading vehicle, and for right Load the vehicle layout control device that the position of vehicle is controlled；Described vehicle arranges that controlling device includes laying respectively Erect before the position right front, right back, left back and the left front that load vehicle on skew bridge and the right side constituting square frame framework Vertical marker post, left back vertical marker post and left front vertical marker post behind straight mark post, the right side, and lay along the direction loading automobile front-axle Skew bridge loads the front sensing rope at automobile front-axle wheel position and is laid in tiltedly along the direction loading vehicle rear axle The rear sensing rope at vehicle rear axle wheel position is loaded on bridge；Right Laser emission is installed on vertical marker post before the described right side Device, is provided with the right laser pickoff of laser signal for receiving right laser transmitter projects on vertical marker post behind the described right side, Left generating laser is installed on described left front vertical marker post, described left back vertical marker post is provided with and sends out for receiving left laser The left laser pickoff of laser signal that emitter is launched, described right generating laser, right laser pickoff, left generating laser and The setting height(from bottom) of left laser pickoff is respectively less than the height loading vehicle；Described front sensing is restricted and rear sensing rope by the rope made of hemp and leads to Cross the Reflective adhesive tape colligation two pressure transducers on the rope made of hemp to constitute, the centre-to-centre spacing of two pressure transducers and loading vehicle Front axle left side wheel and the centre-to-centre spacing of front axle right side wheels, and load the rear axle left side wheel of vehicle and rear axle right side wheels Centre-to-centre spacing is equal；Being provided with vehicle layout control box on vertical marker post or left front vertical marker post before the described right side, described vehicle is arranged Control to be provided with vehicle in box and arrange controller, described vehicle arrange controller include micro controller module and with microcontroller mould Block connects and for the communication circuit module being connected with computer and communicate, and the input of described micro controller module is connected to button Operate circuit module and for signal being amplified, filtering and the signal conditioning circuit module of A/D conversion process, described micro- The outfan of controller module is connected to display circuit module and voice warning circuit module, described button operation circuit module, aobvious Show that circuit module and voice warning circuit module are all exposed at described vehicle and arrange on the outer surface controlling box, four pressure sensings The outfan of device all inputs with signal conditioning circuit module connect, the outfan of right laser pickoff and left laser pickoff Outfan all connect with the input of micro controller module.

Above-mentioned skew bridge loading test loads Vehicle positioning system, it is characterised in that: described skew bridge pitch level's angular measurement Device by horizontally disposed first measure bar, be fixedly connected on the semicircular protractor in the first measurement masthead portion and be hinged on the first measurement The second measurement bar composition on bar.

Above-mentioned skew bridge loading test loads Vehicle positioning system, it is characterised in that: described micro controller module is monolithic Machine.

Above-mentioned skew bridge loading test loads Vehicle positioning system, it is characterised in that: described communication circuit module is that USB leads to Letter circuit module.

Above-mentioned skew bridge loading test loads Vehicle positioning system, it is characterised in that: described display circuit module is liquid crystal Display screen.

Present invention also offers a kind of method step simple, testing ground is workable, it is possible to realize the examination of skew bridge load Testing the most quickly cloth car, the skew bridge loading test of the accuracy being effectively improved loading test measurement data loads vehicle location side Method, it is characterised in that the method comprises the following steps:

Step one, parameter measurement and parameter are arranged, and detailed process is as follows:

Step 101, length L using meter ruler measure field loading vehicle and width d, and input the loading car in computer In position computation module；

Step 102, use described slope angle tester to measure skew bridge gradient α in the both sides at skew bridge expansion joint, and input In loading vehicle location computing module in computer；

In step 103, loading vehicle location computing module in a computer, adjacent two loading cars of same row are set Adjacent two wheels between the value of distance s, previous row is set and loads the front axle right side wheels of vehicle and load with a rear row The value of distance Q between the front axle right side wheels of vehicle, arranges the value of weight G loading vehicle, and before loading vehicle is set The force value of axle left side wheel, load the force value of the front axle right side wheels of vehicle, load the pressure of the rear axle left side wheel of vehicle Force value and load vehicle rear axle right side wheels force value withThe threshold value Δ of difference；

Step 2, point single loading vehicle loading and skew bridge length direction are that M row, width are for often arranging N loading car Load two kinds of situations and calculate the position coordinate loading vehicles:

When single loading vehicle loads, first, described computer calls loading vehicle location computing module, to load car Front axle right side wheels center be zero, with skew bridge length direction as X-axis, and with the side vertical with skew bridge length direction To for Y-axis, set up plane right-angle coordinate；Then, described computer calls loading vehicle location computing module and according to formula:

$\left\{\begin{array}{c}{x}_1=0,y_1=0\\ x_2=-Lcos\mathrm{\α},y_2=Lsin\mathrm{\α}\\ x_3=d\sin \mathrm{\α}-Lcos\mathrm{\α},y_3=dcos\mathrm{\α}+Lsin\mathrm{\α}\\ x_4=d\sin \mathrm{\α},y_4=dcos\mathrm{\α}\end{array}\right.$

It is calculated the position coordinate (x of the front axle right side wheels loading vehicle₁,y₁), load vehicle rear axle on the right side of Position coordinate (the x of wheel₂,y₂), load the position coordinate (x of rear axle left side wheel of vehicle₃,y₃) and load car The position coordinate (x of front axle left side wheel₄,y₄)；

When skew bridge length direction be M row, width for when often N loading vehicle of row loads, first, described computer is adjusted With loading vehicle location computing module, with the front axle right side wheels of skew bridge length direction the 1st the 1st loading vehicle of row's width Center is zero, with skew bridge length direction as X-axis, and with the direction vertical with skew bridge length direction as Y-axis, sets up plane Rectangular coordinate system；Then, described computer calls loading vehicle location computing module and according to formula:

$\left\{\begin{array}{c}{x}_{11}=0,y_{11}=0\\ x_{12}=-L\cos \mathrm{\α},y_{12}=Lsin\mathrm{\α}\\ x_{13}=d\sin \mathrm{\α}-L\cos \mathrm{\α},y_{13}=dcos\mathrm{\α}+Lsin\mathrm{\α}\\ x_{14}=d\sin \mathrm{\α},y_{14}=dcos\mathrm{\α}\end{array}\right.$

It is calculated the cloth set of the front axle right side wheels of skew bridge length direction the 1st the 1st loading vehicle of row's width Put coordinate (x₁₁,y₁₁), the position of the rear axle right side wheels of skew bridge length direction the 1st the 1st loading vehicle of row's width Coordinate (x₁₂,y₁₂), the position of the rear axle left side wheel of skew bridge length direction the 1st the 1st loading vehicle of row's width sits Mark (x₁₃,y₁₃) and skew bridge length direction the 1st the 1st loading vehicle of row's width front axle left side wheel position sit Mark (x₁₄,y₁₄)；Wherein, M and N is the natural number not less than 2；

Described computer calls loading vehicle location computing module and according to formula:

$\left\{\begin{array}{c}{x}_{i1}=\[(d+s)(i-1)\]sin\mathrm{\α},y_{i1}=\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{i2}=-Lcos\mathrm{\α}+\[(d+s)(i-1)\]\sin \mathrm{\α},y_{i2}=L\sin \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{i3}=d\sin \mathrm{\α}-L\cos \mathrm{\α}+\[(d+s)(i-1)\]sin\mathrm{\α},y_{i3}=dcos\mathrm{\α}+L\sin \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{i4}=d\sin \mathrm{\α}+\[(d+s)(i-1)\]\sin \mathrm{\α},y_{i4}=d\cos \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\end{array}\right.$

It is calculated the cloth set of the front axle right side wheels of skew bridge length direction the 1st i-th loading vehicle of row's width Put coordinate (x_i1,y_i1), the position of the rear axle right side wheels of skew bridge length direction the 1st i-th loading vehicle of row's width Coordinate (x_i2,y_i2), the position of the rear axle left side wheel of skew bridge length direction the 1st i-th loading vehicle of row's width sits Mark (x_i3,y_i3) and skew bridge length direction the 1st i-th loading vehicle of row's width front axle left side wheel position sit Mark (x_i4,y_i4)；Wherein, the value of i is the natural number of 2～N；

Described computer calls loading vehicle location computing module and according to formula:

$\left\{\begin{array}{c}{x}_{j11}=-(j-1)Q,y_{j11}=0\\ x_{j12}=-(j-1)Q-L\cos \mathrm{\α},y_{j12}=L\sin \mathrm{\α}\\ x_{j13}=-(j-1)Q+d\sin \mathrm{\α}-L\cos \mathrm{\α},y_{j13}=d\cos \mathrm{\α}+L\sin \mathrm{\α}\\ x_{j14}=-(j-1)Q+d\sin \mathrm{\α},y_{j14}=d\cos \mathrm{\α}\end{array}\right.$

It is calculated the cloth set of the front axle right side wheels of skew bridge length direction jth row's the 1st loading vehicle of width Put coordinate (x_j11,y_j11), the cloth set of rear axle right side wheels of skew bridge length direction jth row's the 1st loading vehicle of width Put coordinate (x_j12,y_j12), the cloth set of rear axle left side wheel of skew bridge length direction jth row's the 1st loading vehicle of width Put coordinate (x_j13,y_j13) and the cloth set of front axle left side wheel of skew bridge length direction jth row's the 1st loading vehicle of width Put coordinate (x_j14,y_j14)；Wherein, the value of j is the natural number of 2～M；

Described computer calls loading vehicle location computing module and according to formula:

$\left\{\begin{array}{c}{x}_{ji1}=-(j-1)Q+\[(d+s)(i-1)\]sin\mathrm{\α},y_{ji1}=\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{ji2}=-(j-1)Q-Lcos\mathrm{\α}+\[(d+s)(i-1)\]\sin \mathrm{\α},y_{ji2}=L\sin \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{ji3}=-(j-1)Q+d\sin \mathrm{\α}-L\cos \mathrm{\α}+\[(d+s)(i-1)\]sin\mathrm{\α},y_{ji3}=dcos\mathrm{\α}+L\sin \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{ji4}=-(j-1)Q+d\sin \mathrm{\α}+\[(d+s)(i-1)\]\sin \mathrm{\α},y_{ji4}=d\cos \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\end{array}\right.$

It is calculated the cloth set of the front axle right side wheels of skew bridge length direction jth row's i-th loading vehicle of width Put coordinate (x_ji1,y_ji1), the cloth set of rear axle right side wheels of skew bridge length direction jth row's i-th loading vehicle of width Put coordinate (x_ji2,y_ji2), the cloth set of rear axle left side wheel of skew bridge length direction jth row's i-th loading vehicle of width Put coordinate (x_ji3,y_ji3) and the cloth set of front axle left side wheel of skew bridge length direction jth row's i-th loading vehicle of width Put coordinate (x_ji4,y_ji4)；

Step 3, according to load vehicle position coordinate arrange vehicle arrange control device, detailed process is as follows:

Step 301, on skew bridge, load the position right front of vehicle, right back, left back and left front cloth respectively If vertical marker post, left back vertical marker post and left front vertical marker post behind right front vertical marker post, the right side；

Step 302, on skew bridge along load automobile front-axle direction on skew bridge, load automobile front-axle wheel cloth set Put sensing rope before place lays, and the center sensing two pressure transducers of rope before making composition is left with the front axle loading vehicle respectively The position coordinate of side wheel and the position coordinate of front axle right side wheels overlap；

Step 303, on skew bridge along load vehicle rear axle direction on skew bridge, load vehicle rear axle wheel cloth set Put sensing rope after place lays, and the center sensing two pressure transducers of rope after making composition is left with the rear axle loading vehicle respectively The position coordinate of side wheel and the position coordinate of rear axle right side wheels overlap；

Step 304, before the right side on vertical marker post height less than load height of car position install right generating laser, Right laser pickoff is installed in the position that on vertical marker post, height is equal with the setting height(from bottom) of right generating laser behind the right side, on a left side On front vertical marker post, height installs left generating laser less than the position loading height of car, height on left back vertical marker post Left laser pickoff is installed in the position equal with the setting height(from bottom) of left generating laser；

Step 305, described vehicle layout controller is placed on vehicle arranges and control in box, and vehicle is arranged control box Be arranged on before the right side on vertical marker post or left front vertical marker post, and before constituting two pressure transducers of sensing rope outfan and Outfan all inputs with signal conditioning circuit module of two pressure transducers sensing rope after composition are connected, by right laser The outfan of receptor and the outfan of left laser pickoff are all connected with the input of micro controller module, by telecommunication circuit mould Block is connected with computer；

Step 4, by vehicle arrange control device to load vehicle position, detailed process is as follows:

Step 401, signals collecting and transmission: loading vehicle is vertically sailed into by vertical marker post behind vertical marker post, the right side before the right side, In the square frame framework that left back vertical marker post and left front vertical marker post are constituted, before constituting, two pressure transducers of sensing rope are the most right The front axle left side wheel of loading vehicle and front axle right side wheels are applied to its pressure and detect, and the pressure letter that will detect Number output to signal conditioning circuit module, senses two pressure transducers of rope respectively to loading on the left of the rear axle of vehicle after composition Wheel and rear axle right side wheels are applied to its pressure and detect, and are exported by the pressure signal detected to signal condition electricity Road module, its pressure signal received is amplified by signal conditioning circuit module, filter and after A/D conversion process output to Micro controller module, meanwhile, laser persistently launched by right generating laser and left generating laser, and right laser pickoff is to right laser Emitter launch laser signal be received, and when laser signal can be received export high level to micro controller module, When not receiving laser signal, output low level is to micro controller module；Left laser pickoff is to left laser transmitter projects Laser signal is received, and output high level is to micro controller module when receiving laser signal, sharp not receiving During optical signal, output low level is to micro controller module；

Step 402, signal analysis and processing and display: micro controller module is analyzed place to its pressure signal received Reason, obtains loading force value F of the front axle left side wheel of vehicle_{Front left}, load force value F of front axle right side wheels of vehicle_{Front right}, add Carry force value F of the rear axle left side wheel of vehicle_{Rear left}Force value F with the rear axle right side wheels loading vehicle_{Rear right}And control display Circuit module shows；Meanwhile, micro controller module control display circuit module is defeated to its right laser pickoff received The level of the level gone out and the output of left laser pickoff shows；

Step 403, loading storing cycle position judgment and prompting: micro controller module will load car on the left of the front axle of vehicle Force value F of wheel_{Front left}, load force value F of front axle right side wheels of vehicle_{Front right}, load the pressure of rear axle left side wheel of vehicle Value F_{Rear left}Force value F with the rear axle right side wheels loading vehicle_{Rear right}Respectively withPhase comparison, and right laser pickoff and a left side are swashed High level and the low level of optical receiver output judge；The level and the left laser pickoff that export when right laser pickoff are defeated The level gone out be low level andAndAndAndTime, sentence Breaking and docked to the position of standard for loading vehicle, micro controller module control voice warning circuit module sends voice and carries Showing, prompting loading vehicle has been parked and has been put in place；The level exported when right laser pickoff is high level or the output of left laser pickoff Level be high level orOrOrOrTime, it is judged that Do not dock to the position of standard for loading vehicle, micro controller module controls voice warning circuit module and sends voice message, Prompting loading vehicle is not parked and is put in place.

Above-mentioned method, it is characterised in that: in step 402, micro controller module is also analyzed and processed the loading car obtained Force value F of front axle left side wheel_{Front left}, load force value F of front axle right side wheels of vehicle_{Front right}, load vehicle rear axle Force value F of left side wheel_{Rear left}Force value F with the rear axle right side wheels loading vehicle_{Rear right}, and the right laser pick-off received The level of device output and the level of left laser pickoff output are transferred to computer by communication circuit module, and it is connect by computer The signal received stores and shows.

Above-mentioned method, it is characterised in that: the value of s described in step 103 is 1m～1.6m, Q described in step 103 Value is 5m～10m, and the value of G described in step 103 is 30t～40t, and the value of Δ described in step 103 is 0～2t.

The present invention compared with prior art has the advantage that

1, present invention is generally directed to problem that existing skew bridge loading test vehicle loading position is difficult to accurately determine and propose, The cooperation controlling device is arranged, it is possible to realize skew bridge load by meter ruler, skew bridge pitch level's angle goniometer, computer and vehicle Test cloth car accurate, quick, improve the test efficiency of skew bridge loading test and the reliability of experimental data, it is possible to improve existing The defect that loading test exists for skew bridge, for the technical support that the development of Test on Bridge Loading technology is important with progressive offer.

2, skew bridge loading test of the present invention loads the simple in construction of Vehicle positioning system, novel in design reasonable, it is achieved convenient, Use simple operation.

3, skew bridge loading test of the present invention loads the method step of vehicle positioning method simply, testing ground operability By force, it is possible to be effectively improved in prior art and arrange the method loading vehicle, it is possible to be effectively improved the standard of loading test measurement data Really property, it is possible to the quantity of operation assessment of safe bearing capacity and assessment bridge for judging bridge structure provides tests number accurately According to.

4, the pressure transducer of rope is sensed all by reflective after sensing the pressure transducer restricted before the present invention is constituted and constituting Adhesive tape colligation is on the rope made of hemp, and the driver therefore loading vehicle is easy for it can be seen that Reflective adhesive tape position, so quickly, accurate Before really the front axle left side wheel and front axle right side wheels that load vehicle being parked in respectively in two Reflective adhesive tape on sensing rope, After the rear axle left side wheel and rear axle right side wheels that load vehicle are parked in respectively in two Reflective adhesive tape on sensing rope, complete Skew bridge loads vehicle and arranges；In addition it is possible to determine whether vehicle's center of gravity is in theory calls position by four pressure transducers Put, and whether determine loading vehicle by right generating laser, right laser pickoff, left generating laser and left laser pickoff Stop partially so that it is more accurate that vehicle is arranged.

5, the present invention is by vertical marker post, left back vertical marker post and left front vertical marker post conduct behind right front vertical marker post, the right side Driver parks the object of reference loading vehicle, and shows loading vehicle stopped state in real time by display circuit module, passes through language Sound cue circuit module carries out voice message to dead ship condition, combines with listening by seeing, relative to artificial vision's controlled loading Vehicle lay-off, wagon control is convenient, and its position control accuracy is higher such that it is able to solve current skew bridge load well Test vehicle controls the problem of error, and is effectively shortened the loading storing cycle time, improves skew bridge loading test efficiency.

6, do the skew bridge structure measured data that skew bridge loading test obtains after the application of the invention can preferably react The actual forced status of structure, the present invention's is practical, and using effect is good, it is simple to promote the use of.

In sum, the present invention is capable of skew bridge loading test cloth car accurate, quick, improves skew bridge loading test Test efficiency and the reliability of experimental data, practical, it is simple to promote the use of.

Below by drawings and Examples, technical scheme is described in further detail.

Accompanying drawing explanation

Fig. 1 is that skew bridge loading test of the present invention loads Vehicle positioning system in addition to meter ruler and skew bridge pitch level's angle goniometer Structural representation.

Fig. 2 is the present invention front sensing rope and the structural representation of rear sensing rope.

Fig. 3 is the schematic block circuit diagram that vehicle of the present invention arranges that controller is connected with other each parts.

Fig. 4 is the structural representation of skew bridge pitch level's angle goniometer of the present invention.

Fig. 5 is the method flow block diagram that skew bridge loading test of the present invention loads vehicle positioning method.

Fig. 6 is to load vehicle installation position schematic diagram on skew bridge during single loading vehicle loading.

Fig. 7 be skew bridge length direction be that M row, width load vehicle at skew bridge for often N loading vehicle of row when loading On installation position schematic diagram.

Description of reference numerals:

1 right front vertical marker post；Vertical marker post behind 2 right sides；3 left back vertical marker posts；

4 left front vertical marker posts；Sensing rope before 5；Sensing rope after 6；

7 right generating lasers；8 right laser pickoffs；9 left generating lasers；

10 left laser pickoffs；11 ropes made of hemp；12 Reflective adhesive tape；

13 pressure transducers；14 control box；15 micro controller modules；

16 communication circuit modules；17 button operation circuit modules；

18 signal conditioning circuit modules；19 display circuit module；

20 voice warning circuit modules；21 computers；22 first measure bar；

23 semicircular protractors；24 second measure bar；25 skew bridges；

26 load vehicle.

Detailed description of the invention

As shown in Figure 1, Figure 2 and Figure 3, the skew bridge loading test of the present invention loads Vehicle positioning system, including for adding Carry the meter ruler that the length and width of vehicle 26 measures, survey for the skew bridge pitch level angle that skew bridge 25 gradient is measured Measuring device, for calculating the computer 21 of the position loading vehicle 26, and for entering the position loading vehicle 26 The vehicle that row controls is arranged and is controlled device；Described vehicle arranges that controlling device includes being laid in respectively loading vehicle 26 on skew bridge 25 Position right front, right back, left back and left front and constitute square frame framework right before behind vertical marker post 1, the right side vertically Mark post 2, left back vertical marker post 3 and left front vertical marker post 4, and be laid on skew bridge 25 add along the direction loading automobile front-axle Carry the front sensing rope 5 at automobile front-axle wheel position and be laid on skew bridge 25 loading along the direction loading vehicle rear axle Rear sensing rope 6 at vehicle rear axle wheel position；Right generating laser 7 is installed on vertical marker post 1 before the described right side, described Right laser pickoff 8 for receiving the laser signal that right generating laser 7 is launched is installed on vertical marker post 2 behind the right side, described Left generating laser 9 is installed on left front vertical marker post 4, described left back vertical marker post 3 is provided with and sends out for receiving left laser The left laser pickoff 10 of the laser signal that emitter 9 is launched, described right generating laser 7, right laser pickoff 8, left laser are sent out The setting height(from bottom) of emitter 9 and left laser pickoff 10 is respectively less than the height loading vehicle 26；Described front sensing rope 5 and rear sensing rope 6 are constituted by the rope made of hemp 11 with by Reflective adhesive tape 12 colligation two pressure transducers 13 on the rope made of hemp 11, two pressure sensings The centre-to-centre spacing of device 13 and the front axle left side wheel and the centre-to-centre spacing of front axle right side wheels that load vehicle 26, and load vehicle 26 The centre-to-centre spacing of rear axle left side wheel and rear axle right side wheels is equal；Install on vertical marker post 1 or left front vertical marker post 4 before the described right side Having vehicle to arrange and control box 14, described vehicle arranges in controlling box 14 that being provided with vehicle arranges controller, and control arranged by described vehicle Device processed includes micro controller module 15 and connects with micro controller module 15 and for the communication being connected with computer 21 and communicate Circuit module 16, the input of described micro controller module 15 is connected to button operation circuit module 17 and for carrying out signal Amplifying, filter and the signal conditioning circuit module 18 of A/D conversion process, the outfan of described micro controller module 15 is connected to display Circuit module 19 and voice warning circuit module 20, described button operation circuit module 17, display circuit module 19 and voice carry Show that circuit module 20 is all exposed at described vehicle and arranges that on the outer surface controlling box 14, the outfan of four pressure transducers 13 is equal Connect with the input of signal conditioning circuit module 18, the outfan of right laser pickoff 8 and the output of left laser pickoff 10 End all inputs with micro controller module 15 connect.

As shown in Figure 4, in the present embodiment, described skew bridge pitch level's angle goniometer is measured bar by horizontally disposed first 22, the semicircular protractor 23 being fixedly connected on the first measurement bar 22 top and the second measurement bar being hinged on the first measurement bar 22 24 compositions.

In the present embodiment, described micro controller module 15 is single-chip microcomputer.Described communication circuit module 16 is usb communication circuit Module.Described display circuit module 19 is LCDs.

As it is shown in figure 5, the skew bridge loading test of the present invention loads vehicle positioning method, comprise the following steps:

Step one, parameter measurement and parameter are arranged, and detailed process is as follows:

Step 101, length L using meter ruler measure field loading vehicle 26 and width d, and input adding in computer 21 Carry in vehicle location computing module；

In the present embodiment, length L of described loading vehicle is 5m, and the width d of described loading vehicle is 1.8m；

Step 102, use described slope angle tester to measure skew bridge gradient α in the both sides at skew bridge expansion joint, and input In loading vehicle location computing module in computer 21；When being embodied as, first by described skew bridge pitch level's angle goniometer First measurement bar 22 be placed on the edge, side at skew bridge expansion joint or be parallel to skew bridge expansion joint edge, side place；Connect Rotation the second measurement bar 24, make the second measurement bar 24 be placed on the opposite side edge at skew bridge expansion joint or be parallel to skew bridge and stretch The opposite side edge of contracting seam is placed；Finally read and measure between bar 24 and the first measurement bar 22 second on semicircular protractor 23 Angle value, be the value of skew bridge gradient α；

In the present embodiment, described skew bridge gradient α is 41 °；

In step 103, loading vehicle location computing module in computer 21, adjacent two loadings of same row are set The value of distance s between adjacent two wheels of vehicle 26, arranges previous row and loads the front axle right side wheels and rear of vehicle 26 Row loads the value of distance Q between the front axle right side wheels of vehicle 26, arranges the value of weight G loading vehicle 26, and setting adds Carry the force value of the front axle right side wheels of the force value of the front axle left side wheel of vehicle 26, loading vehicle 26, load vehicle 26 The force value of rear axle left side wheel and load vehicle 26 rear axle right side wheels force value withThe threshold value Δ of difference；

In the present embodiment, the value of s described in step 103 is 1m～1.6m, the value of Q described in step 103 be 5m～ 10m, the value of G described in step 103 is 30t～40t, and the value of Δ described in step 103 is 0～2t；Preferably, described s Value be 1.3m, the value of described Q is 7.5m, and the value of described G is 35t, and the value of described Δ is 1t；

Step 2, point of single loading vehicle 26 load and skew bridge 25 length direction is that M row, width add for often row N Carry vehicle 26 to load two kinds of situations and calculate the position coordinate loading vehicles 26:

When single loading vehicle 26 loads, first, described computer 21 calls loading vehicle location computing module, to add Carry vehicle 26 front axle right side wheels center be zero, with skew bridge 25 length direction as X-axis, and with skew bridge 25 length side It is Y-axis to vertical direction, sets up plane right-angle coordinate；Then, described computer 21 calls loading vehicle location and calculates mould Block according to formula:

$\left\{\begin{array}{c}{x}_1=0,y_1=0\\ x_2=-Lcos\mathrm{\α},y_2=Lsin\mathrm{\α}\\ x_3=d\sin \mathrm{\α}-Lcos\mathrm{\α},y_3=dcos\mathrm{\α}+Lsin\mathrm{\α}\\ x_4=d\sin \mathrm{\α},y_4=dcos\mathrm{\α}\end{array}\right.$

It is calculated the position coordinate (x of the front axle right side wheels loading vehicle 26₁,y₁), load vehicle 26 rear axle Position coordinate (the x of right side wheels₂,y₂), load the position coordinate (x of rear axle left side wheel of vehicle 26₃,y₃) and Load the position coordinate (x of the front axle left side wheel of vehicle 26₄,y₄)；

Such as, as shown in Figure 6, loading the wheel that front axle right side wheels is numbered F1 of vehicle 26, its position is sat It is designated as (x₁,y₁)；Loading the wheel that rear axle right side wheels is numbered F2 of vehicle 26, its position coordinate is (x₂,y₂)； Loading the wheel that rear axle left side wheel is numbered F3 of vehicle 26, its position coordinate is (x₃,y₃)；Load vehicle 26 Rear axle left side wheel is the wheel of numbered F4, and its position coordinate is (x₄,y₄)；

When skew bridge 25 length direction be M row, width for often row N loading vehicle 26 load time, first, described calculating Machine 21 calls loading vehicle location computing module, before skew bridge 25 the 1st loading vehicle 26 of length direction the 1st row's width Axle right side wheels center is zero, with skew bridge 25 length direction as X-axis, and with the direction vertical with skew bridge 25 length direction For Y-axis, set up plane right-angle coordinate；Then, described computer 21 calls loading vehicle location computing module and according to formula:

$\left\{\begin{array}{c}{x}_{11}=0,y_{11}=0\\ x_{12}=-L\cos \mathrm{\α},y_{12}=Lsin\mathrm{\α}\\ x_{13}=d\sin \mathrm{\α}-L\cos \mathrm{\α},y_{13}=dcos\mathrm{\α}+Lsin\mathrm{\α}\\ x_{14}=d\sin \mathrm{\α},y_{14}=dcos\mathrm{\α}\end{array}\right.$

It is calculated the cloth of the front axle right side wheels of skew bridge 25 length direction the 1st the 1st loading vehicle 26 of row's width Seated position coordinate (x₁₁,y₁₁), the rear axle right side wheels of skew bridge 25 length direction the 1st the 1st loading vehicle 26 of row's width Position coordinate (x₁₂,y₁₂), the rear axle left side wheel of skew bridge 25 length direction the 1st the 1st loading vehicle 26 of row's width Position coordinate (x₁₃,y₁₃) and the front axle of skew bridge 25 length direction the 1st the 1st loading vehicle 26 of row's width on the left of Position coordinate (the x of wheel₁₄,y₁₄)；Wherein, M and N is the natural number not less than 2；Described computer 21 calls loading Vehicle location computing module according to formula:

$\left\{\begin{array}{c}{x}_{i1}=\[(d+s)(i-1)\]sin\mathrm{\α},y_{i1}=\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{i2}=-Lcos\mathrm{\α}+\[(d+s)(i-1)\]\sin \mathrm{\α},y_{i2}=L\sin \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{i3}=d\sin \mathrm{\α}-L\cos \mathrm{\α}+\[(d+s)(i-1)\]sin\mathrm{\α},y_{i3}=dcos\mathrm{\α}+L\sin \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{i4}=d\sin \mathrm{\α}+\[(d+s)(i-1)\]\sin \mathrm{\α},y_{i4}=d\cos \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\end{array}\right.$

It is calculated the cloth of the front axle right side wheels of skew bridge 25 length direction the 1st i-th loading vehicle 26 of row's width Seated position coordinate (x_i1,y_i1), the rear axle right side wheels of skew bridge 25 length direction the 1st i-th loading vehicle 26 of row's width Position coordinate (x_i2,y_i2), the rear axle left side wheel of skew bridge 25 length direction the 1st i-th loading vehicle 26 of row's width Position coordinate (x_i3,y_i3) and the front axle of skew bridge 25 length direction the 1st i-th loading vehicle 26 of row's width on the left of Position coordinate (the x of wheel_i4,y_i4)；Wherein, the value of i is the natural number of 2～N；

Described computer 21 calls loading vehicle location computing module and according to formula:

$\left\{\begin{array}{c}{x}_{j11}=-(j-1)Q,y_{j11}=0\\ x_{j12}=-(j-1)Q-L\cos \mathrm{\α},y_{j12}=L\sin \mathrm{\α}\\ x_{j13}=-(j-1)Q+d\sin \mathrm{\α}-L\cos \mathrm{\α},y_{j13}=d\cos \mathrm{\α}+L\sin \mathrm{\α}\\ x_{j14}=-(j-1)Q+d\sin \mathrm{\α},y_{j14}=d\cos \mathrm{\α}\end{array}\right.$

It is calculated the cloth of the front axle right side wheels of skew bridge 25 length direction jth row's the 1st loading vehicle 26 of width Seated position coordinate (x_j11,y_j11), skew bridge 25 length direction jth row the 1st loading vehicle 26 of width rear axle right side wheels Position coordinate (x_j12,y_j12), skew bridge 25 length direction jth row the 1st loading vehicle 26 of width rear axle on the left of Position coordinate (the x of wheel_j13,y_j13) and the front axle of skew bridge 25 length direction jth row's the 1st loading vehicle 26 of width Position coordinate (the x of left side wheel_j14,y_j14)；Wherein, the value of j is the natural number of 2～M；Described computer 21 calls and adds Carry vehicle location computing module and according to formula:

$\left\{\begin{array}{c}{x}_{ji1}=-(j-1)Q+\[(d+s)(i-1)\]sin\mathrm{\α},y_{ji1}=\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{ji2}=-(j-1)Q-Lcos\mathrm{\α}+\[(d+s)(i-1)\]\sin \mathrm{\α},y_{ji2}=L\sin \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{ji3}=-(j-1)Q+d\sin \mathrm{\α}-L\cos \mathrm{\α}+\[(d+s)(i-1)\]sin\mathrm{\α},y_{ji3}=dcos\mathrm{\α}+L\sin \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\\ x_{ji4}=-(j-1)Q+d\sin \mathrm{\α}+\[(d+s)(i-1)\]\sin \mathrm{\α},y_{ji4}=d\cos \mathrm{\α}+\[(d+s)(i-1)\]cos\mathrm{\α}\end{array}\right.$

It is calculated the cloth of the front axle right side wheels of skew bridge 25 length direction jth row's i-th loading vehicle 26 of width Seated position coordinate (x_ji1,y_ji1), skew bridge 25 length direction jth row i-th loading vehicle 26 of width rear axle right side wheels Position coordinate (x_ji2,y_ji2), skew bridge 25 length direction jth row i-th loading vehicle 26 of width rear axle on the left of Position coordinate (the x of wheel_ji3,y_ji3) and the front axle of skew bridge 25 length direction jth row's i-th loading vehicle 26 of width Position coordinate (the x of left side wheel_ji4,y_ji4)；

Such as, as it is shown in fig. 7, the value of described M is 2, the value of described N is 2, i.e. skew bridge 25 length direction is 2 rows, width Degree direction loads for often 2 loading vehicles 26 of row；

Skew bridge 25 the 1st loading vehicle 26 of length direction the 1st row's width is the loading vehicle 26 of numbered A, skew bridge The wheel that front axle right side wheels is numbered A11 of 25 length direction the 1st the 1st loading vehicles 26 of row's width, it is arranged Position coordinates (x₁₁,y₁₁)；The rear axle right side wheels of skew bridge 25 length direction the 1st the 1st loading vehicle 26 of row's width is for compiling Number it is the wheel of A12, its position coordinate (x₁₂,y₁₂)；Skew bridge 25 the 1st loading vehicle of length direction the 1st row's width The wheel that rear axle left side wheel is numbered A13 of 26, its position coordinate (x₁₃,y₁₃)；Skew bridge 25 length direction the 1st row The wheel that front axle left side wheel is numbered A14 of the 1st loading vehicle 26 of width, its position coordinate (x₁₄, y₁₄)；

Skew bridge 25 the 2nd loading vehicle 26 of length direction the 1st row's width is the loading vehicle 26 of numbered C, skew bridge The wheel that front axle right side wheels is numbered C21 of 25 length direction the 1st the 2nd loading vehicles 26 of row's width, it is arranged Position coordinates (x₂₁,y₂₁)；The rear axle right side wheels of skew bridge 25 length direction the 1st the 2nd loading vehicle 26 of row's width is for compiling Number it is the wheel of C22, its position coordinate (x₂₂,y₂₂)；Skew bridge 25 the 2nd loading vehicle of length direction the 1st row's width The wheel that rear axle left side wheel is numbered C23 of 26, its position coordinate (x₂₃,y₂₃)；Skew bridge 25 length direction the 1st row The wheel that front axle left side wheel is numbered C24 of the 2nd loading vehicle 26 of width, its position coordinate (x₂₄, y₂₄)；

Skew bridge 25 the 1st loading vehicle 26 of length direction the 2nd row's width is the loading vehicle 26 of numbered B, skew bridge The wheel that front axle right side wheels is numbered B211 of 25 length direction the 2nd the 1st loading vehicles 26 of row's width, it is arranged Position coordinates (x₂₁₁,y₂₁₁), skew bridge 25 the 1st loading vehicle 26 of length direction the 2nd row's width be the car of numbered B212 Wheel, the position coordinate (x of its rear axle right side wheels₂₁₂,y₂₁₂), the 1st loading of skew bridge 25 length direction the 2nd row's width Vehicle 26 is the wheel of numbered B213, the position coordinate (x of its rear axle left side wheel₂₁₃,y₂₁₃) and skew bridge 25 length side To the wheel that the 1st loading vehicle 26 of the 2nd row's width is numbered B214, the position coordinate of its front axle left side wheel (x₂₁₄,y₂₁₄)；

Skew bridge 25 the 2nd loading vehicle 26 of length direction the 2nd row's width is the loading vehicle 26 of numbered D, skew bridge The wheel that front axle right side wheels is numbered D221 of 25 length direction the 2nd the 2nd loading vehicles 26 of row's width, it is arranged Position coordinates (x₂₂₁,y₂₂₁), the rear axle right side wheels of skew bridge 25 length direction the 2nd the 2nd loading vehicle 26 of row's width be The wheel of numbered D222, its position coordinate (x₂₂₂,y₂₂₂), the 2nd loading of skew bridge 25 length direction the 2nd row's width The wheel that rear axle left side wheel is numbered D223 of vehicle 26, its position coordinate (x₂₂₃,y₂₂₃) and skew bridge 25 length side To the wheel that front axle left side wheel is numbered D224 of the 2nd the 2nd loading vehicle 26 of row's width, its position coordinate (x₂₂₄,y₂₂₄)；

Step 3, according to load vehicle 26 position coordinate arrange vehicle arrange control device, detailed process is as follows:

Step 301, on skew bridge 25 load vehicle 26 position right front, right back, left back and left front divide Not Bu She right before vertical marker post 2, left back vertical marker post 3 and left front vertical marker post 4 behind vertical marker post 1, the right side；

Step 302, on skew bridge 25 along load automobile front-axle direction on skew bridge 25, load automobile front-axle wheel cloth Sensing rope 5 before laying at seated position, and make before composition the center of two pressure transducers 13 of sensing rope 5 respectively with load vehicle The position coordinate of the front axle left side wheel of 26 and the position coordinate of front axle right side wheels overlap；

Step 303, on skew bridge 25 along load vehicle rear axle direction on skew bridge 25, load vehicle rear axle wheel cloth Sense rope 6 after laying at seated position, and make after composition the center of two pressure transducers 13 of sensing rope 6 respectively with load vehicle The position coordinate of the rear axle left side wheel of 26 and the position coordinate of rear axle right side wheels overlap；

Step 304, before the right side on vertical marker post 1 height less than load height of car position install right generating laser 7, right laser pickoff is installed in the position that on vertical marker post 2, height is equal with the setting height(from bottom) of right generating laser 7 behind the right side 8, on left front vertical marker post 4, height installs left generating laser 9, at left back vertical mark less than the position loading height of car Left laser pickoff 10 is installed in the position that on bar 3, height is equal with the setting height(from bottom) of left generating laser 9；

Step 305, described vehicle layout controller is placed on vehicle arranges and control in box 14, and vehicle is arranged control Box 14 is arranged on before the right side on vertical marker post 1 or left front vertical marker post 4, and two pressure transducers 13 of sensing rope 5 before constituting Outfan and after constituting the outfan of two pressure transducers 13 of sensing rope 6 all with the input of signal conditioning circuit module 18 End connects, equal defeated with micro controller module 15 by the outfan of the outfan of right laser pickoff 8 and left laser pickoff 10 Enter end to connect, communication circuit module 16 is connected with computer 21；

Step 4, by vehicle arrange control device to load vehicle 26 position, detailed process is as follows:

Step 401, signals collecting and transmission: loading vehicle 26 is vertically sailed into and is vertically marked by behind vertical marker post before the right side 1, the right side In the square frame framework that bar 2, left back vertical marker post 3 and left front vertical marker post 4 are constituted, two pressure sensings of sensing rope 5 before constituting The pressure that device 13 is applied to it to the front axle left side wheel and front axle right side wheels loading vehicle 26 respectively detects, and will inspection The pressure signal measured exports to signal conditioning circuit module 18, and after composition, two pressure transducers 13 of sensing rope 6 are the most right The rear axle left side wheel of loading vehicle 26 and rear axle right side wheels are applied to its pressure and detect, and the pressure that will detect Signal exports to signal conditioning circuit module 18, its pressure signal received is amplified by signal conditioning circuit module 18, Exporting to micro controller module 15 after filtering and A/D conversion process, meanwhile, right generating laser 7 and left generating laser 9 continue Launching laser, the laser signal that right generating laser 7 is launched by right laser pickoff 8 is received, and can receive laser During signal, output high level is to micro controller module 15, and when not receiving laser signal, output low level is to micro controller module 15；The laser signal that left generating laser 9 is launched by left laser pickoff 10 is received, and when laser signal can be received Output high level is to micro controller module 15, and when not receiving laser signal, output low level is to micro controller module 15；

The pressure transducer 13 of rope 6 is sensed all by anti-after constituting owing to constituting the pressure transducer 13 of front sensing rope 5 Light adhesive tape 12 colligation is on the rope made of hemp 11, and the driver therefore loading vehicle 26 is easy for it can be seen that the position of Reflective adhesive tape 12 Put, and then quickly and accurately the front axle left side wheel and front axle right side wheels that load vehicle 26 are parked on front sensing rope 5 respectively Two Reflective adhesive tape 12 on, by load the rear axle left side wheel of vehicle 26 and rear axle right side wheels be parked in respectively after sense rope 6 On two Reflective adhesive tape 12 on, complete skew bridge load vehicle arrange.

Step 402, signal analysis and processing and display: its pressure signal received is analyzed by micro controller module 15 Process, obtain loading force value F of the front axle left side wheel of vehicle 26_{Front left}, load the force value of front axle right side wheels of vehicle 26 F_{Front right}, load force value F of rear axle left side wheel of vehicle 26_{Rear left}Force value F with the rear axle right side wheels loading vehicle 26_{Rear right} And control display circuit module 19 and show；Meanwhile, micro controller module 15 controls display circuit module 19 and receives it Right laser pickoff 8 output level and left laser pickoff 10 output level show；

Step 403, loading vehicle 26 stand judge and prompting: micro controller module 15 will load the front axle of vehicle 26 Force value F of left side wheel_{Front left}, load force value F of front axle right side wheels of vehicle 26_{Front right}, load vehicle 26 rear axle on the left of Force value F of wheel_{Rear left}Force value F with the rear axle right side wheels loading vehicle 26_{Rear right}Respectively withPhase comparison, and to right laser Receptor 8 and the high level of left laser pickoff 10 output and low level judge；Level when the output of right laser pickoff 8 With left laser pickoff 10 output level be low level andAndAnd AndTime, it is judged that docked to the position of standard for loading vehicle 26, micro controller module 15 controls voice Cue circuit module 20 sends voice message, and prompting loading vehicle 26 has been parked and put in place；Level when the output of right laser pickoff 8 The level exported for high level or left laser pickoff 10 be high level orOrOrOrTime, it is judged that the position of standard, micro controller module is not docked to for loading vehicle 26 15 control voice warning circuit module 20 sends voice message, and prompting loading vehicle 26 is not parked and put in place.Specifically, swash when the right side When the level of optical receiver 8 output is high level, voice warning circuit module 20 sends and loads the voice message that vehicle 26 is to the left； When the level of left laser pickoff 10 output is high level, voice warning circuit module 20 sends and loads the language that vehicle 26 is to the right Sound is pointed out；WhenTime, voice warning circuit module 20 sends the front axle left side wheel of loading vehicle 26 and does not docks to The voice message of position；WhenTime, voice warning circuit module 20 sends and loads the front axle right side wheels of vehicle 26 not Park the voice message put in place；WhenTime, voice warning circuit module 20 sends on the left of the rear axle loading vehicle 26 The voice message put in place do not parked by wheel；WhenTime, after voice warning circuit module 20 sends loading vehicle 26 Axle right side wheels does not parks the voice message put in place.

In the present embodiment, before in step 402, micro controller module 15 is also analyzed and processed the loading vehicle 26 obtained Force value F of axle left side wheel_{Front left}, load force value F of front axle right side wheels of vehicle 26_{Front right}, load vehicle 26 rear axle left Force value F of side wheel_{Rear left}Force value F with the rear axle right side wheels loading vehicle 26_{Rear right}, and the right laser pick-off received The level of device 8 output and the level of left laser pickoff 10 output are transferred to computer 21 by communication circuit module 16, calculate Its signal received is stored and shows by machine 21.Make staff can also check loading car two on computer 21 Whether park and put in place.

In sum, the present invention is by vertical marker post, left back vertical marker post and left front vertical mark behind right front vertical marker post, the right side The object of reference loading vehicle parked by bar as driver, and shows loading vehicle stopped state in real time by display circuit module, By voice warning circuit module, dead ship condition is carried out voice message, combine with listening by seeing, control relative to artificial vision System loads vehicle lay-off, and wagon control is convenient, it is possible to realizes skew bridge loading test cloth car accurate, quick, improves skew bridge The test efficiency of loading test and the reliability of experimental data, it is possible to improve the defect that existing loading test exists for skew bridge, For the technical support that the development of Test on Bridge Loading technology is important with progressive offer.

The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention, every according to the present invention Any simple modification, change and the equivalent structure change that above example is made by technical spirit, all still falls within skill of the present invention In the protection domain of art scheme.

Claims (8)

1. a skew bridge loading test loads Vehicle positioning system, it is characterised in that: include for the length loading vehicle (26) The meter ruler that degree and width measure, for the skew bridge pitch level's angle goniometer measuring skew bridge (25) gradient, is used for Calculate the computer (21) of the position loading vehicle (26), and for the position loading vehicle (26) is controlled The vehicle of system is arranged and is controlled device；Described vehicle is arranged that control device includes being laid in respectively and is loaded vehicle (26) on skew bridge (25) Position right front, right back, left back and left front and constitute square frame framework right before perpendicular behind vertical marker post (1), the right side Straight mark post (2), left back vertical marker post (3) and left front vertical marker post (4), and be laid in tiltedly along the direction loading automobile front-axle The upper front sensing loaded at automobile front-axle wheel position of bridge (25) is restricted (5) and is laid in along the direction loading vehicle rear axle Upper rear sensing rope (6) loaded at vehicle rear axle wheel position of skew bridge (25)；It is provided with on vertical marker post (1) before the described right side Right generating laser (7), is provided with on vertical marker post (2) for receiving the laser that right generating laser (7) is launched behind the described right side The right laser pickoff (8) of signal, described left front vertical marker post (4) is provided with left generating laser (9), described left back vertically Left laser pickoff (10) for receiving the laser signal that left generating laser (9) is launched, the described right side are installed on mark post (3) The setting height(from bottom) of generating laser (7), right laser pickoff (8), left generating laser (9) and left laser pickoff (10) is the least In the height loading vehicle (26)；Described front sensing rope (5) and rear sensing rope (6) by the rope made of hemp (11) and pass through Reflective adhesive tape (12) colligation two pressure transducers (13) on the rope made of hemp (11) are constituted, the centre-to-centre spacing of two pressure transducers (13) and loading The front axle left side wheel of vehicle (26) and the centre-to-centre spacing of front axle right side wheels, and load vehicle (26) rear axle left side wheel and The centre-to-centre spacing of rear axle right side wheels is equal；On vertical marker post (1) or left front vertical marker post (4), vehicle layout is installed before the described right side Controlling box (14), described vehicle arranges in controlling box (14) that being provided with vehicle arranges controller, and controller bag arranged by described vehicle Include micro controller module (15) and connect with micro controller module (15) and for the communication being connected with computer (21) and communicating Circuit module (16), the input of described micro controller module (15) is connected to button operation circuit module (17) and for letter Number it is amplified, filters and the signal conditioning circuit module (18) of A/D conversion process, the output of described micro controller module (15) It is terminated with display circuit module (19) and voice warning circuit module (20), described button operation circuit module (17), display electricity Road module (19) and voice warning circuit module (20) are all exposed at described vehicle and arrange on the outer surface controlling box (14), four The outfan of pressure transducer (13) all inputs with signal conditioning circuit module (18) connect, right laser pickoff (8) The outfan of outfan and left laser pickoff (10) all inputs with micro controller module (15) connect.

2. load Vehicle positioning system according to the skew bridge loading test described in claim 1, it is characterised in that: described skew bridge gradient Horizontal angle surveying device is by horizontally disposed first measuring bar (22), being fixedly connected on the semicircle angulation at the first measurement bar (22) top Device (23) and the second measurement bar (24) composition being hinged on the first measurement bar (22).

3. load Vehicle positioning system according to the skew bridge loading test described in claim 1, it is characterised in that: described microcontroller Module (15) is single-chip microcomputer.

4. load Vehicle positioning system according to the skew bridge loading test described in claim 1, it is characterised in that: described telecommunication circuit Module (16) is usb communication circuit module.

5. load Vehicle positioning system according to the skew bridge loading test described in claim 1, it is characterised in that: described display circuit Module (19) is LCDs.

6. utilize system as claimed in claim 1 that skew bridge loading test is loaded the method that vehicle positions, its feature It is that the method comprises the following steps:

Step one, parameter measurement and parameter are arranged, and detailed process is as follows:

Step 101, length L using meter ruler measure field loading vehicle (26) and width d, and input adding in computer (21) Carry in vehicle location computing module；

Step 102, use described slope angle tester to measure skew bridge gradient α in the both sides at skew bridge expansion joint, and input calculating In loading vehicle location computing module in machine (21)；

In step 103, loading vehicle location computing module in computer (21), adjacent two loading cars of same row are set The value of distance s between adjacent two wheels of (26), arrange previous row load the front axle right side wheels of vehicle (26) with after One row loads the value of distance Q between the front axle right side wheels of vehicle (26), arranges the value of weight G loading vehicle (26), and The force value of the front axle right side wheels of the force value of the front axle left side wheel loading vehicle (26), loading vehicle (26) is set, adds Carry vehicle (26) rear axle left side wheel force value and load vehicle (26) rear axle right side wheels force value withDifference The threshold value Δ of value；

Step 2, a point single loading vehicle (26) loading and skew bridge (25) length direction are that M arranges, width adds for often row N The position coordinate of load vehicle (26) two kinds of situations calculating loading vehicle (26) of loading:

When single loading vehicle (26) loads, first, described computer (21) calls loading vehicle location computing module, to add Carry vehicle (26) front axle right side wheels center be zero, with skew bridge (25) length direction as X-axis, and with skew bridge (25) The direction that length direction is vertical is Y-axis, sets up plane right-angle coordinate；Then, described computer (21) calls loading vehicle position Put computing module and according to formula:

It is calculated the position coordinate (x of the front axle right side wheels loading vehicle (26)₁,y₁), load vehicle (26) rear axle Position coordinate (the x of right side wheels₂,y₂), load the position coordinate (x of rear axle left side wheel of vehicle (26)₃,y₃) Position coordinate (x with the front axle left side wheel loading vehicle (26)₄,y₄)；

When skew bridge (25) length direction be M row, width for when often N loading vehicle (26) of row loads, first, described calculating Machine (21) calls loading vehicle location computing module, with skew bridge (25) length direction the 1st the 1st loading vehicle of row's width (26) front axle right side wheels center is zero, with skew bridge (25) length direction as X-axis, and with skew bridge (25) length side It is Y-axis to vertical direction, sets up plane right-angle coordinate；Then, described computer (21) calls loading vehicle location calculating Module according to formula:

It is calculated the cloth of the front axle right side wheels of skew bridge (25) length direction the 1st the 1st loading vehicle (26) of row's width Seated position coordinate (x₁₁,y₁₁), car on the right side of the rear axle of skew bridge (25) length direction the 1st the 1st loading vehicle (26) of row's width Position coordinate (the x of wheel₁₂,y₁₂), the rear axle of skew bridge (25) length direction the 1st the 1st loading vehicle (26) of row's width Position coordinate (the x of left side wheel₁₃,y₁₃) and skew bridge (25) length direction the 1st the 1st loading vehicle of row's width (26) the position coordinate (x of front axle left side wheel₁₄,y₁₄)；Wherein, M and N is the natural number not less than 2；

Described computer (21) calls loading vehicle location computing module and according to formula:

It is calculated the cloth of the front axle right side wheels of skew bridge (25) length direction the 1st i-th loading vehicle (26) of row's width Seated position coordinate (x_i1,y_i1), car on the right side of the rear axle of skew bridge (25) length direction the 1st i-th loading vehicle (26) of row's width Position coordinate (the x of wheel_i2,y_i2), the rear axle of skew bridge (25) length direction the 1st i-th loading vehicle (26) of row's width Position coordinate (the x of left side wheel_i3,y_i3) and skew bridge (25) length direction the 1st i-th loading vehicle of row's width (26) the position coordinate (x of front axle left side wheel_i4,y_i4)；Wherein, the value of i is the natural number of 2～N；

Described computer (21) calls loading vehicle location computing module and according to formula:

It is calculated the cloth of the front axle right side wheels of skew bridge (25) length direction jth row's the 1st loading vehicle (26) of width Seated position coordinate (x_j11,y_j11), skew bridge (25) length direction jth row the 1st loading vehicle (26) of width rear axle on the right side of Position coordinate (the x of wheel_j12,y_j12), skew bridge (25) length direction jth row's width the 1st loading vehicle (26) Position coordinate (the x of rear axle left side wheel_j13,y_j13) and skew bridge (25) length direction jth row's the 1st loading car of width Position coordinate (the x of the front axle left side wheel of (26)_j14,y_j14)；Wherein, the value of j is the natural number of 2～M；

Described computer (21) calls loading vehicle location computing module and according to formula:

It is calculated the cloth of the front axle right side wheels of skew bridge (25) length direction jth row's i-th loading vehicle (26) of width Seated position coordinate (x_ji1,y_ji1), skew bridge (25) length direction jth row i-th loading vehicle (26) of width rear axle on the right side of Position coordinate (the x of wheel_ji2,y_ji2), skew bridge (25) length direction jth row's width i-th loading vehicle (26) Position coordinate (the x of rear axle left side wheel_ji3,y_ji3) and skew bridge (25) length direction jth row's i-th loading car of width Position coordinate (the x of the front axle left side wheel of (26)_ji4,y_ji4)；

Step 3, according to load vehicle (26) position coordinate arrange vehicle arrange control device, detailed process is as follows:

Step 301, position right front, right back, left back and the left front loading vehicle (26) on skew bridge (25) are divided Not Bu She right before vertical marker post (2), left back vertical marker post (3) and left front vertical marker post (4) behind vertical marker post (1), the right side；

Step 302, on skew bridge (25), load automobile front-axle wheel cloth skew bridge (25) is upper along loading the direction of automobile front-axle Sensing rope (5) before laying at seated position, and before making composition the center of two pressure transducers (13) of sensing rope (5) respectively with add The position coordinate of the position coordinate and front axle right side wheels that carry the front axle left side wheel of vehicle (26) overlaps；

Step 303, on skew bridge (25), load vehicle rear axle wheel cloth skew bridge (25) is upper along loading the direction of vehicle rear axle Sensing rope (6) after laying at seated position, and make after composition the center of two pressure transducers (13) of sensing rope (6) respectively with The position coordinate of the position coordinate and rear axle right side wheels that load the rear axle left side wheel of vehicle (26) overlaps；

Step 304, before the right side, the upper height of vertical marker post (1) installs right generating laser less than the position loading height of car (7) right laser is installed in the position that, the upper height of vertical marker post (2) is equal with the setting height(from bottom) of right generating laser (7) behind the right side Receptor (8), installs left generating laser (9) at the upper height of left front vertical marker post (4) less than the position loading height of car, Left laser pick-off is installed in the position equal with the setting height(from bottom) of left generating laser (9) at the upper height of left back vertical marker post (3) Device (10)；

Step 305, described vehicle layout controller is placed on vehicle arranges and control in box (14), and vehicle is arranged control box (14) it is arranged on before the right side on vertical marker post (1) or left front vertical marker post (4), and two pressure of sensing rope (5) pass before constituting The outfan of sensor (13) and the outfan of two pressure transducers (13) of sensing rope (6) is all and signal conditioning circuit after constituting The input of module (18) connects, by the outfan of the outfan of right laser pickoff (8) and left laser pickoff (10) all with The input of micro controller module (15) connects, and is connected with computer (21) by communication circuit module (16)；

Step 4, by vehicle arrange control device to load vehicle (26) position, detailed process is as follows:

Step 401, signals collecting and transmission: loading vehicle (26) is vertically sailed into and is vertically marked by behind vertical marker post before the right side (1), the right side In the square frame framework that bar (2), left back vertical marker post (3) and left front vertical marker post (4) are constituted, before constituting, sense two of rope (5) The pressure that pressure transducer (13) is applied to it to the front axle left side wheel and front axle right side wheels loading vehicle (26) respectively enters Row detection, and the pressure signal detected is exported to signal conditioning circuit module (18), two pressures of sensing rope (6) after composition The pressure that force transducer (13) is applied to it to the rear axle left side wheel and rear axle right side wheels loading vehicle (26) respectively is carried out Detection, and the pressure signal detected is exported to signal conditioning circuit module (18), signal conditioning circuit module (18) is to it The pressure signal received is amplified, filters and exports after A/D conversion process to micro controller module (15), meanwhile, right sharp Laser persistently launched by optical transmitting set (7) and left generating laser (9), and right generating laser (7) is sent out by right laser pickoff (8) The laser signal penetrated is received, and output high level, to micro controller module (15), is connecing when receiving laser signal When can not receive laser signal, output low level is to micro controller module (15)；Left laser pickoff (10) is to left generating laser (9) laser signal launched is received, and when laser signal can be received export high level to micro controller module (15), When not receiving laser signal, output low level is to micro controller module (15)；

Step 402, signal analysis and processing and display: micro controller module (15) is analyzed place to its pressure signal received Reason, obtains loading force value F of the front axle left side wheel of vehicle (26)_{Front left}, load the pressure of front axle right side wheels of vehicle (26) Value F_{Front right}, load force value F of rear axle left side wheel of vehicle (26)_{Rear left}Pressure with the rear axle right side wheels loading vehicle (26) Value F_{Rear right}And control display circuit module (19) and show；Meanwhile, micro controller module (15) controls display circuit module (19) The level that the level exporting its right laser pickoff (8) received and left laser pickoff (10) export shows；

Step 403, loading vehicle (26) stand judge and prompting: before micro controller module (15) will load vehicle (26) Force value F of axle left side wheel_{Front left}, load force value F of front axle right side wheels of vehicle (26)_{Front right}, load vehicle (26) after Force value F of axle left side wheel_{Rear left}Force value F with the rear axle right side wheels loading vehicle (26)_{Rear right}Respectively withPhase comparison, and The high level and the low level that export right laser pickoff (8) and left laser pickoff (10) judge；When right laser pick-off Level that device (8) exports and the level that left laser pickoff (10) exports be low level andAndAndAndTime, it is judged that the position of standard has been docked to for loading vehicle (26) Putting place, micro controller module (15) controls voice warning circuit module (20) and sends voice message, and prompting has loaded vehicle (26) Park and put in place；The level that the level exported when right laser pickoff (8) is high level or left laser pickoff (10) exports is height Level orOrOrOrTime, it is judged that for loading vehicle (26) not docking to the position of standard, micro controller module (15) control voice warning circuit module (20) sends voice and carries Showing, prompting loading vehicle (26) is not parked and is put in place.

The most in accordance with the method for claim 6, it is characterised in that: in step 402, micro controller module (15) is also analyzed Process force value F of the front axle left side wheel of the loading vehicle (26) obtained_{Front left}, load the front axle right side wheels of vehicle (26) Force value F_{Front right}, load force value F of rear axle left side wheel of vehicle (26)_{Rear left}With the rear axle right side wheels loading vehicle (26) Force value F_{Rear right}, and the level that the level that exports of the right laser pickoff (8) received and left laser pickoff (10) export leads to Crossing communication circuit module (16) and be transferred to computer (21), its signal received is stored and shows by computer (21).

8. according to the method described in claim 6 or 7, it is characterised in that: the value of s described in step 103 is 1m～1.6m, step Described in rapid 103, the value of Q is 5m～10m, and the value of G described in step 103 is 30t～40t, Δ described in step 103 Value is 0～2t.