CN103325246A - Dynamic detection method for wagons of multiple vehicle types - Google Patents
Dynamic detection method for wagons of multiple vehicle types Download PDFInfo
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Abstract
The invention discloses a dynamic detection method for wagons of multiple vehicle types, and relates to the management of passing vehicles from management points. The dynamic detection method comprises the following steps of: knowing a basic condition of a dynamic detection road section of multiple vehicle types of required wagons in primary stage, and carrying out data statistics on a passing condition at a management point inlet; setting an overcapacity management point at a speedway toll station or a general arterial highway, wherein the overcapacity management point is an inlet adaptometer overcapacity management point; carrying out predetection on the vehicle passing information and vehicle overcapacity information of the inlet of the overcapacity management point; processing the pre-detected vehicle passing information, establishing an adaptometer dynamic threshold detection model as follows: theta i'=theta i+ lambda.omega i.detha i, i=1, 2....,5, and carrying out dynamic detection according to the work flow. The method provided by the invention is suitable to administrate distributed speedway of different vehicle types or general arterial highway road section overcapacity problem, the relation of blocking in the overcapacity detection station and overcapacity effective management is effectively processed, practical traffic information of roads in China is fitted, and the maximization of socioeconomic performance is realized.
Description
Technical field
Technical scheme of the present invention relates in the management of management point to traffick, specifically is used for the dynamic testing method of lorry various.
Background technology
Along with the develop rapidly of freight traffic, aobvious important to the management day of highway and arterial highway multi-vehicle-type overloading.Yet present stage only limits to carry out for the technical feature of weighing-appliance and the aspects such as degree of accuracy of improvement weighing-appliance to the research and development of the dynamic testing method of multi-vehicle-type overloading.CN200710067150 discloses fixed type vehicle dynamic weighting system, and the axle of contact vehicle is heavily reached gross weight and carries out preliminary examination.CN200910186130 has disclosed freeway toll station dynamic weighing system scheme and equipment, and the selected weighing platform of scheme should be laid along the track accordingly, and a side of weighing platform can allow the axletree of vehicle pass through successively, measures according to garage's direction; Pass through weighing platform multiple spot bearing data acquisition for axletree, and then detect the information acquisition by each axle of weighing platform; According to above information, the speed that each axle is carried out, the calculating that adds (subtracting) speed and travel direction; Based on corresponding speed, add (subtracting) speed and travel direction, the weight measurement data that axle is all are carried out correcting process, to calculate the overall weight of vehicle.CN201220119603.X has reported overload previewing and the heavy ETC linked system of lorry meter, system is arranged at the front end of charge station's entrance, the charge station porch is provided with ETC track entrance and MTC track entrance, use the vehicle carried electronic label write device, and match with existing ETC track, realize the pre-detection of lorry overrun condition, sail traffic route into to stop overrun vehicle, and realize lorry is implemented weight metering charging under ETC.
It is far from being enough now the management of highway and general arterial highway multi-vehicle-type overloading being only limited to fixedly weigh, when the traction engine flow is larger, existing freeway toll station often causes the vehicle queue jam with general arterial highway overload management point, management point is forced to all vehicles are let pass when seriously blocking up, both caused a certain amount of economic loss, caused again a large amount of serious overloaded vehicles to flee from the net of justice, accordingly, transient change situation according to highway or general arterial highway truck traffic stream is regulated the overload management threshold value that overload management point device itself is set in real time, both can effectively limit serious overload, and can effectively prevent or relieving traffic jam again.
Summary of the invention
Technical matters to be solved by this invention is: the dynamic testing method that is provided for the lorry various, to propose a kind of adaptivity detection of dynamic threshold model on the basis of original system fixed threshold, be used for the management to highway and general arterial highway multi-vehicle-type overloading, regulate in real time the overload management threshold value that management point device itself is set according to the transient change situation of highway or general arterial highway truck traffic stream.
The present invention solves this technical problem the technical scheme that adopts: be used for the dynamic testing method of lorry various, step is:
The first step, preliminary preparation
Preliminary preparation comprises to be understood and the data statistics of management point entrance traffic status the required basal conditions that carries out lorry various detection of dynamic highway section, wherein, the basal conditions in highway section comprises the number of track-lines in this highway section, the lane in which the drivers should pay fees quantity and gateway quantity that lorry designed driving speed, the period average velocity that blocks up, expressway entrance and exit are provided with altogether; The statistics of management point entrance year traffic status data comprises percentage and the load condition thereof of the shared quantity of various vehicles in the annual lorry traffic volume of this management point entrance, the 5 kinds of vehicle lorries;
Second step is set up the plane figure of overload management point
The highway section basal conditions that obtains according to the first step and the statistics of management point entrance traffic status, management point at freeway toll station or general arterial highway arranges the overload management point, this overload management point is a kind of entrance adaptivity overload management point, wherein the overload management of freeway toll station setting point comprises previewing system, essence check system and toll island, the overload management point of the management point setting of general arterial highway comprises previewing system and smart check system, described previewing system comprises road measuring device, monitoring camera-shooting equipment, vehicle separator, trigger, adaptivity dynamic weighing equipment, weight display screen and clearing lamp, the essence check system comprises the control computing machine, workstation, static weighing platform and automatic rail machine, toll island comprises automatic rail machine and charge equipment, above-mentioned road measuring device is arranged on the porch of overload management point, being arranged on the monitoring camera-shooting equipment of trackside is connected with control computing machine in the smart check system, vehicle separator and trigger are separately positioned on the both sides, front and back of adaptivity dynamic weighing equipment, and all be connected with control computing machine in the smart check system, weight display screen and clearing lamp all are arranged on the place ahead of adaptivity dynamic weighing equipment, there is not the vehicle of overload to continue by former track direction running, the vehicle that does not have overload of running on expressway will be got visa card at the charge equipment of toll island, automatic rail machine by toll island sails highway into, the overloaded vehicle that does not meet the limit value requirement of setting out on a journey then in accordance with the instructions route enter the overload treatment region and unload, and the static weighing platform by smart check system carries out the essence inspection and rechecks, the vehicle that meets the limit value requirement of setting out on a journey after the essence inspection is rechecked is directly got visa card at the workstation place, the automatic rail machine of overload treatment region lifts automatically, and vehicle sails highway or general arterial highway into;
The 3rd step, the detection of overload management point entrance vehicle pass-through information and overload of vehicle information
(1) queue length and the queuing time of management point obtained in employing based on the method for the vehicle queue detection of video analysis
Use aforesaid monitoring camera-shooting equipment at overload management point entrance, by day under the illumination condition, carrying out automobile storage with the morphologic edge detection method is detecting, and adopt mobile detection window method to realize that vehicle queue detects, then utilize night the headstock car light to detect vehicle, realize that night, vehicle queue detected, obtain thus vehicle pass-through information;
(2) adopt previewing system to the vehicle pre-detection that overloads
At the overload management point, first by above-mentioned previewing system to the vehicle pre-detection that overloads, obtain thus overload of vehicle information, and obtain to carry out the detection information of the superimposed truck of essence inspection;
(3) processing of vehicle pass-through information
Vehicle pass-through information and the overload of vehicle information of the entrance lorry that above-mentioned (1) and (2) step are obtained at overload management point, collect and in time process and obtain a result by the control computing machine take Intel's Duo Processor as core, license plate number when lorry is passed through previewing system, vehicle, axle is heavy, gross weight and speed information are all inputted the control computer information management database in the above-mentioned control computing machine, come the above-mentioned data taken in this database of Treatment Analysis with Intel's Duo Processor by the adaptivity detection of dynamic threshold model in the 4th step, namely obtain traffick quantity, the distribution situation of composition and overload capacity;
The 4th step, the foundation of adaptivity detection of dynamic threshold model
To the processing of the 3rd vehicle pass-through information that detects of step, set up adaptivity detection of dynamic threshold model as follows:
θ
i′＝θ
i+λ·ω
i·Δθ
i，i=1，2…，5；
In the following formula:
θ '
i---the actual detection threshold of i type car in the dynamic detection system, the threshold value after namely adjusting;
θ
i---when not considering vehicle arrival rate or the volume of traffic, i type car initial threshold, i.e. fixed threshold in the dynamic detection system;
Δ θ
i---the threshold value increment that an i class of every increase lorry produces;
ω
i---i class vehicle proportion;
λ---the lorry quantity of waiting in line;
The 5th goes on foot, and is used for the workflow of the dynamic testing method of lorry various
The workflow that is used for the dynamic testing method of highway lorry various is:
Does is it reasonable that previewing system detect the volume of traffic → threshold value?
Threshold value self-regulation → previewing system sense weight;
Previewing system sense weight → overload?
Continue to travel;
Information indicating → enter overload management point → smart check system sense weight → meet limit value of setting out on a journey?
Enter overload treatment region → unload → recheck
Meet the limit value of setting out on a journey?
Get visa card → sail into highway;
The workflow that is used for the dynamic testing method of general arterial highway lorry various is:
Does is it reasonable that previewing system detect the volume of traffic → threshold value?
Threshold value self-regulation → previewing system sense weight;
Previewing system sense weight → overload?
Continue to travel;
Information indicating → enter overload management point → smart check system sense weight → overload?
Leave the overload management point;
Meet the limit value of setting out on a journey?
Enter overload management district → unload → recheck
Meet the limit value of setting out on a journey?
Impose a fine → leave the overload management point.
Above-mentioned dynamic testing method for the lorry various, road measuring device in the described previewing system is made of sensor, microcontroller and signal inputoutput unit three parts, the connected mode of sensor, microcontroller and inputoutput unit three parts is: in the oscillatory circuit of the telefault access signal input part of sensor, microcontroller is that single-chip microcomputer has judged whether that by the oscillation signal frequency that the measurement oscillatory circuit sends vehicle passes through, export judged result by signal output component at last, and the display working condition indication.
Above-mentioned dynamic testing method for the lorry various, described sensor is under the 10mm～15mm of the ground of overrun and overload measuring station, excavating a length is that 1.8m～2.2m, width are that 9mm～11mm and the degree of depth are the groove of 1.3m～1.7m, twine along this groove with wire, consist of thus the square telefault that a size is 1.8m * 1.3m～2.2m * 1.7m, by underdrain, with the low-resistance wire two section headers of above-mentioned telefault are guided in the signal input part oscillatory circuit again.
Above-mentioned dynamic testing method for the lorry various, described microcontroller is the PIC16F877 single-chip microcomputer.
Above-mentioned dynamic testing method for the lorry various, described signal inputoutput unit are that light is every the switching value input/output board.
Above-mentioned dynamic testing method for the lorry various, described camera supervised in the use of overload management point entrance, by day under the illumination condition, carry out automobile storage with the morphologic edge detection method and detecting, and adopt mobile detection window method to realize that the method reference of vehicle queue detection is from " vehicle queue length based on video analysis detects " literary composition.
Ji high speed Tianjin, Tianjin charge station each vehicle truck traffic flow of entrance that table 1 is listed, the statistics of display management point entrance year traffic status data comprise in the annual lorry traffic volume of this management point entrance, the lorry 1～5 kind of shared quantity percentage of vehicle and load condition thereof.
Ji high speed Tianjin, table 1 Tianjin charge station each vehicle truck traffic flow of entrance
Above-mentioned dynamic testing method for the lorry various, related equipment, components and parts are all by commercially available, and the allocation method of device therefor and the method for attachment of used components and parts all are that those skilled in the art can grasp.
The invention has the beneficial effects as follows: compared with prior art, the outstanding substantive distinguishing features that the present invention is used for the dynamic testing method of lorry various is: the present invention is used for the dynamic testing method of lorry various, by analyzing original dynamic weighing system, consider the assortment of present China lorry vehicle and the characteristics of China's lorry vehicle diversification, change caused threshold value increment according to the shared weight of all kinds of vehicles on highway or the general arterial highway and the corresponding vehicle volume of traffic and jointly determine such vehicle overload management threshold value actual change value, the model that is applicable to single vehicle is improved, form multi-vehicle-type adaptivity detection of dynamic threshold model, to be applicable to the improvement of China's highway or general arterial highway multi-vehicle-type overload.This model can be according to the overload management threshold value of the real-time conditioning equipment of the transient change situation setting of highway or general arterial highway truck traffic stream itself.When the lorry flow increased, threshold value improved automatically according to the flow recruitment, to improve the overload management point traffic capacity, prevented or relieving traffic jam; When the lorry flow reduced, threshold value reduced automatically, with the protection road equipment, reduced the damage of superimposed truck road pavement.
Compared with prior art, the marked improvement that the present invention is used for the dynamic testing method of lorry various is: self-adaptation dynamic overload control technology is adapted to the highway of Different Traffic Flows amount, different automobile types distribution or the improvement of general arterial highway highway section overload problems, can effectively process the relation that highway or general arterial highway overload measuring station block up and overload and effectively manage, thereby effectively prevent or alleviate the traffic jam of overload management point.The inventive method is adapted to highway or the generally improvement of arterial highway highway section overload problems that different automobile types distributes, and more is close to China's road actual traffic situation, has realized the maximization of economic results in society.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the plane figure schematic diagram of highway overload management point.
Fig. 2 is the plane figure schematic diagram of general arterial highway overload management point.
Fig. 3 is the workflow diagram that is used for the dynamic testing method of highway lorry various.
Fig. 4 is the workflow diagram that is used for the dynamic testing method of general arterial highway lorry various.
Among the figure: 1. road measuring device, 2. monitoring camera-shooting equipment, 3. vehicle separator, 4. trigger, 5. adaptivity dynamic weighing equipment, 6. weight display screen, 7. clearing lamp, 8. control computing machine, 9. workstation, 10. static weighing platform, the automatic rail machine of 11. overload treatment regions, 12. charge equipment, the automatic rail machine of 13. toll islands
Embodiment
Embodiment illustrated in fig. 1 showing, arrange at the management point of highway and to comprise previewing system, smart check system and toll island in the overload management point, described previewing system comprises road measuring device, monitoring camera-shooting equipment, vehicle separator, trigger, adaptivity dynamic weighing equipment, weight display screen and clearing lamp, the essence check system comprises control computing machine, workstation, static weighing platform, automatic rail machine, and toll island comprises automatic rail machine and charge equipment.Road measuring device shown in Fig. 11 is arranged on the porch of overload management point, realizes arriving from detection of vehicle.Be arranged on the monitoring camera-shooting equipment 2 of trackside and be connected with control computing machine 8 in the smart check system, for detection of queue length and queuing time.Vehicle separator 3 and trigger 4 are separately positioned on the both sides, front and back of adaptivity dynamic weighing equipment 5, all be connected with control computing machine 8 in the smart check system, the trigger pip that vehicle separator 3 separates the front and back vehicle is transferred to the control computing machine 8 in the smart check system.Adaptivity dynamic weighing equipment 5 is realized the pre-detection to gross combination weight, and regulates in real time the overload threshold value of vehicle detection according to the testing result of queue length, avoids causing traffic jam.Weight display screen 6 and clearing lamp 7 all are arranged on the place ahead of adaptivity dynamic weighing equipment 5, show the weight information of vehicle, and whether the prompting vehicle overloads.Do not have the vehicle of overload to continue to get visa card by former track direction running at the charge equipment 12 of toll island, automatically lifted by the automatic rail machine 13 of toll island and sail highway into; The overloaded vehicle that does not meet the limit value requirement of setting out on a journey then in accordance with the instructions route enter the overload treatment region, overloaded vehicle must carry out by the static weighing platform 10 of smart check system the essence inspection at the overload treatment region, the vehicle that does not meet the limit value requirement of setting out on a journey is shed the overload part, the vehicle that meets the limit value requirement of setting out on a journey after the essence inspection is rechecked is directly paid the penalty at workstation 9 places, the barrier machine 11 of overload treatment region lifts automatically, vehicle sails out of the overload management point, sails highway into.
Embodiment illustrated in fig. 2 showing, the overload management point of the management point setting of general arterial highway comprises previewing system and smart check system, described previewing system comprises road measuring device, watch-dog, vehicle separator, trigger, adaptivity dynamic weighing equipment, weight display screen and clearing lamp, and smart check system comprises control computing machine, workstation, static weighing platform, automatic rail machine.Road measuring device shown in Fig. 21 is arranged on the porch of overload management point, realizes arriving from detection of vehicle.The monitoring camera-shooting equipment 2 of trackside is connected with control computing machine 8 in the smart check system, for detection of queue length and queuing time.Vehicle separator 3 and trigger 4 are separately positioned on the both sides, front and back of adaptivity dynamic weighing equipment 5, all be connected with control computing machine 8 in the smart check system, the trigger pip that vehicle separator 3 separates the front and back vehicle is transferred to the control computing machine 8 in the smart check system.Adaptivity dynamic weighing equipment 5 is realized the pre-detection to gross combination weight, and regulates in real time the overload threshold value of vehicle detection according to the testing result of queue length, avoids causing traffic jam.Weight display screen 6 and clearing lamp 7 all are arranged on the place ahead of adaptivity dynamic weighing equipment 5, show the weight information of vehicle, and whether the prompting vehicle overloads.There is not the vehicle of overload to continue directly to sail out of the overload management point by former track direction running; The overloaded vehicle that does not meet the limit value requirement of setting out on a journey then in accordance with the instructions route enter the overload treatment region, overloaded vehicle must carry out by the static weighing platform 10 of smart check system the essence inspection at the overload treatment region and recheck, the vehicle that does not meet the limit value requirement of setting out on a journey is shed the overload part, the vehicle that meets the limit value requirement of setting out on a journey after the essence inspection is rechecked is directly paid the penalty at workstation 9 places, the barrier machine 11 of overload treatment region lifts automatically, and vehicle sails out of the overload management point.
Fig. 1 and Fig. 2 show, above-mentioned overload management point is a kind of entrance adaptivity overload management point, is provided with previewing system at arterial highway Entrance Square front end A-road, is provided with smart check system at the overload treatment region.When vehicle sailed freeway management point triangle section front end into, predefined traffic sign forced passenger-cargo divided lane to travel, and passenger vehicle is kept straight on to passenger vehicle charge exit, and card drawing is current, sails highway into; Lorry is decelerated to overload by deceleration area and detects the highway section, carries out low speed overload preliminary examination by previewing system, and the lorry of gross weight in limits walks to lorry charge exit by direct clearance track, and card drawing is passed through, sailed at a high speed; Gross weight surpasses the lorry of limit value, under the guidance of clearing lamp, sail the overload treatment region into and accept the essence inspection of smart check system, the essence inspection meets the direct card drawing of lorry of the limit value requirement of setting out on a journey and sails highway into, the lorry that essence inspection surpasses the limit value requirement of setting out on a journey then in accordance with regulations the route indication accept corresponding fine or unloading punish the measure, until meet the limit value requirement of setting out on a journey, get visa card, sail highway into.
Embodiment illustrated in fig. 3 showing, the workflow that the present invention is used for the dynamic testing method of highway lorry various is:
Does is it reasonable that previewing system detect the volume of traffic → threshold value?
Threshold value self-regulation → previewing system sense weight;
Previewing system sense weight → overload?
Continue to travel;
Information indicating → enter overload management point → smart check system sense weight → meet limit value of setting out on a journey?
Enter overload treatment region → unload → recheck
Meet the limit value of setting out on a journey?
Get visa card → sail into highway.
Embodiment illustrated in fig. 4 showing, the workflow that the present invention is used for the dynamic testing method of general arterial highway lorry various is:
Does is it reasonable that previewing system detect the volume of traffic → threshold value?
Threshold value self-regulation → previewing system sense weight;
Previewing system sense weight → overload?
Continue to travel;
Information indicating → enter overload management point → smart check system sense weight → overload?
Leave the overload management point;
Meet the limit value of setting out on a journey?
Enter overload management district → unload → recheck
Meet the limit value of setting out on a journey?
Impose a fine → leave the overload management point.
Embodiment 1
The dynamic testing method that is used for the lorry various of the present embodiment is chosen at Tianjin deep blue high-speed static Wang Lu charge station and carries out.
The first step, preliminary preparation
The basal conditions in this highway section is, deep blue high-speed static Wang Lu highway section, Tianjin is two-way Four-Lane Road, and the lorry designed driving speed is 60～100km/h, and the period average velocity that blocks up is 50～80km/h, and this charge station is provided with six thes lane in which the drivers should pay fees altogether, and two are sailed into mouth, and four are rolled away from mouth.The statistics of management point entrance year traffic status data is: the annual passenger vehicle traffic volume of this freeway toll station entrance is 1,200 ten thousand, and the lorry traffic volume is 7,000,000.Wherein 1～5 kind of vehicle proportion is respectively: 30%, 10%, 10%, 30% and 20%, this management point place 1～5 kind of vehicle load condition to be checked is respectively: the normal load ratio is 35%, overload 20% accounts for 23% with interior, overload 20%～40% accounts for 20%, overload 40%～80% accounts for 15%, overload 80%～100% accounts for 5%, and overload accounts for 2% more than 100%.
Second step is set up the plane figure of overload management point
The highway section basal conditions that obtains according to the first step and the statistics of management point entrance traffic status arrange the overload management point at this freeway toll station, and its plane figure as shown in Figure 1.Road measuring device in the previewing system of this overload management point is made of sensor, microcontroller and signal inputoutput unit three parts, wherein, sensor is under the 10mm of the ground of overrun and overload measuring station, excavating a length is that 1.8m, width are that 9mm and the degree of depth are the groove of 1.3m, twine along this groove with wire, consist of thus the square telefault that a size is 1.8m * 1.3m, by underdrain, with the low-resistance wire two section headers of above-mentioned telefault are guided in the signal input part oscillatory circuit again; Microcontroller is the PIC16F877 single-chip microcomputer; The inputoutput unit of signal is that light is every the switching value input/output board; The connected mode of sensor, microcontroller and inputoutput unit three parts is: in the oscillatory circuit of the telefault access signal input part of sensor, microcontroller is that single-chip microcomputer has judged whether that by the oscillation signal frequency that the measurement oscillatory circuit sends vehicle passes through, export judged result by signal output component at last, and the display working condition indication.
The 3rd step, the detection of overload management point entrance vehicle pass-through information and overload of vehicle information
(1) queue length and the queuing time of management point obtained in employing based on the method for the vehicle queue detection of video analysis
Use aforesaid watch-dog at overload management point entrance, by day under the illumination condition, carrying out automobile storage with the morphologic edge detection method is detecting, and adopt mobile detection window method to realize that vehicle queue detects, then utilize night the headstock car light to detect vehicle, realize that night, vehicle queue detected, obtain thus vehicle pass-through information;
The average queue length of vehicle of Tianjin deep blue high-speed static Wang Lu overload management point of surveying is 22, and average queuing time is 660s.
(2) adopt previewing system to the vehicle pre-detection that overloads
At the overload management point, to the vehicle pre-detection that overloads, and obtain to carry out the detection information of the superimposed truck of essence inspection by above-mentioned previewing system, obtain thus overload of vehicle information;
In the embedding previewing system of adaptivity dynamic weighing equipment vehicle separator near, with control computing machine be connected.
The static weighing platform be embedded in vehicle separator in the smart check system near, be connected with the control computing machine.
(3) processing of vehicle pass-through information
Vehicle pass-through information and the overload of vehicle information of the entrance lorry that above-mentioned (1) and (2) step are obtained at overload management point, collect and in time process and obtain a result by the control computing machine take Intel's Duo Processor as core, license plate number when lorry is passed through previewing system, vehicle, axle is heavy, gross weight and speed information are all inputted the control computer information management database in the above-mentioned control computing machine, come the above-mentioned data taken in this database of Treatment Analysis with Intel's Duo Processor by the adaptivity detection of dynamic threshold model in the 4th step, namely obtain traffick quantity, the distribution situation of composition and overload capacity;
The vehicle pass-through information data that the 3rd step detected is: the detection of 1～5 vehicle and the current time that meet freight weight limit are 10,15,20,25 and 30 seconds, and superimposed truck detects and the current time is 20,30,40,50 and 60 seconds.
The 4th step, the foundation of adaptivity detection of dynamic threshold model.
To the processing of the 3rd vehicle pass-through information that detects of step, all kinds of load truck gross weights are carried out random sampling as the basis on this highway respectively, obtain the sample data of such lorry gross weight, by calculating the sample data of overload capacity; Estimate population mean to draw the population mean span with sample value, with this as threshold value increment Delta θ
iValue.The fixed threshold of lorry and threshold value increment see Table 2.
Table 2 self-adaptation dynamic weighing device threshold
Annotate: a type car, jubilee wagon, payload ratings M≤2.5t; Two type cars: medium truck, 2.5＜M≤7; Three type cars, high capacity waggon, 7＜M≤14; Four type cars, high capacity waggon, 14＜M≤39; Five type cars, super-huge lorry, M 〉=40.
To calculate to get parameter substitution model:
θ
i′＝θ
i+λ·ω
i·Δθ
i，i=1，2…，5；
When the vehicle queue length of on average waiting in line to detect at entrance was respectively 10,20 and 30, the actual threshold that calculates saw Table 3.
The threshold value that obtains is regulated in the different average queue length of table 3 by model
Above-mentioned indices is analyzed as follows:
(1) block up cost savings estimation of expressway access
The present invention is the operational effect of checking adaptivity dynamic overload control technology, is chosen at the vehicle number that entrance on average waits in line to detect and is respectively 10,20 and 30.In conjunction with the lorry distribution proportion, utilize multi-vehicle-type adaptivity dynamic weighing model assessment actual threshold, each parameter value according to Jing Wang village charge station entrance draws the cost total value of blocking up, and specifically sees Table 4～table 6.
The cost savings volume that blocks up when the average queue length of table 4 is 10
By table 4 as can be known, when the average queue length of lorry was 10, overload management point entrance can save time 3834.09 hours the whole year, and the fuel oil amount of money of saving is 28027.21 yuan, the time delays cost of saving is 72390.35 yuan, saves altogether 99417.96 yuan of the costs of blocking up.
The cost savings volume that blocks up when the average queue length of table 5 is 20 lorries
By table 5 as can be known, when the average queue length of lorry is 20, can save time 16017.19 hours the whole year at overload management point entrance, the fuel oil amount of money that can save is 117085.70 yuan, the time delays cost that can save is 269409.10 yuan, saves altogether 386494.80 yuan of the costs of blocking up.
The cost savings volume that blocks up when the average queue length of table 6 is 30 lorries
By table 6 as can be known, when the average queue length of lorry is 30, can save time 34103.58 hours the whole year at overload management point entrance, the fuel oil amount of money that can save is 249297.20 yuan, the time delays cost that can save is 573622.20 yuan, saves altogether 822919.40 yuan of the costs of blocking up.
The cost contrast of blocking up by vehicle that difference is on average lined up can be found out, line up longer, and the entrance cost savings of blocking up are more, and the applicability of system is better, congestion alleviation more timely.
(2) block up cost savings estimation of highway section
Lorry travels on the highway, because a part of superimposed truck is restricted to outside the highway, attainable saving cost comprises that mainly the fuel oil loss saves and delay time at stop cost savings two parts, and the highway section cost estimation amount of money that blocks up is shown in Table 7.
Whenever travel one kilometer the cost savings volume that blocks up of the annual lorry of table 7
The 5th goes on foot, and is used for the workflow of the dynamic testing method of highway lorry various
The workflow that the present embodiment is used for the dynamic testing method of highway lorry various is:
Does is it reasonable that previewing system detect the volume of traffic → threshold value?
Threshold value self-regulation → previewing system sense weight;
Previewing system sense weight → overload?
Continue to travel;
Information indicating → enter overload management point → smart check system sense weight → meet limit value of setting out on a journey?
Enter overload treatment region → unload → recheck
→ meet the limit value of setting out on a journey?
Get visa card → sail into highway.
Embodiment 2
Except the sensor in the described self-adaptation dynamic weighing system is under the 12mm of the ground of overload management point, excavating a length is that 2.0m, width are that 10mm and the degree of depth are the groove of 1.5m, twine along this groove with wire, consist of thus outside the square telefault that a size is 2.0m * 1.5m, other are all with embodiment 1.
Embodiment 3
Choose national highway G104 Ma Chang highway section overload management and click and enter the logical data of oral sex, use lorry multiple-type dynamic testing method.
The first step, preliminary preparation
The basal conditions in this highway section is, national highway G104 Ma Chang highway section is two-way Four-Lane Road, and the lorry designed driving speed is 40～80km/h, and the period average velocity that blocks up is 20～60km/h.The statistics of management point entrance year traffic status data is: the annual passenger vehicle traffic volume of this freeway toll station entrance is 1,600,000, and the lorry traffic volume is 4,400,000.Wherein 1～5 kind of vehicle proportion is respectively: 25%, 20%, 25%, 5% and 25%, this management point place 1～5 kind of vehicle load condition to be checked is respectively: the normal load ratio is 30%, overload 20% accounts for 20% with interior, overload 20%～40% accounts for 25%, overload 40%～80% accounts for 14%, overload 80%～100% accounts for 6%, and overload accounts for 5% more than 100%.
Second step is set up the plane figure of overload management point
The highway section basal conditions that obtains according to the first step and the statistics of management point entrance traffic status arrange the overload management point at the management point of the general arterial highway of this national highway, are a kind of entrance adaptivity overload management points, and its plane figure as shown in Figure 2.In addition, this step is under the 15mm of the ground of overload management point except the sensor in the described previewing system, excavating a length is that 2.2m, width are that 11mm and the degree of depth are the groove of 1.7m, twine along this groove with wire, consist of thus outside the square telefault that a size is 2.2m * 1.7m, other are with embodiment 1.
The 3rd step, the detection of overload management point entrance vehicle pass-through information and overload of vehicle information
(1) queue length and the queuing time of management point obtained in employing based on the method for the vehicle queue detection of video analysis
Use aforesaid watch-dog at overload management point entrance, by day under the illumination condition, carrying out automobile storage with the morphologic edge detection method is detecting, and adopt mobile detection window method to realize that vehicle queue detects, then utilize night the headstock car light to detect vehicle, realize that night, vehicle queue detected, obtain thus vehicle pass-through information;
Actual measurement to the transfinite average queue length of vehicle of measuring station of national highway G104 Ma Chang highway section be 15, average queuing time is 500s.
(2) adopt previewing system to the vehicle pre-detection that overloads
At the overload management point, to the vehicle pre-detection that overloads, and obtain to carry out the detection information of the superimposed truck of essence inspection by above-mentioned previewing system, obtain thus overload of vehicle information;
In the embedding previewing system of adaptivity dynamic weighing equipment vehicle separator near, with control computing machine be connected.
The static weighing platform be embedded in vehicle separator in the smart check system near, be connected with the control computing machine.
(3) processing of vehicle pass-through information
Vehicle pass-through information and the overload of vehicle information of the entrance lorry that above-mentioned (1) and (2) step are obtained at overload management point, collect and in time process and obtain a result by the control computing machine take Intel's Duo Processor as core, license plate number when lorry is passed through previewing system, vehicle, axle is heavy, gross weight and speed information are all inputted the control computer information management database in the above-mentioned control computing machine, come the above-mentioned data taken in this database of Treatment Analysis with Intel's Duo Processor by the adaptivity detection of dynamic threshold model in the 4th step, namely obtain traffick quantity, the distribution situation of composition and overload capacity;
The vehicle pass-through information data that the 3rd step detected is: the detection of 1～5 vehicle and the current time that meet freight weight limit are 10,15,20,25 and 30 seconds, and superimposed truck detects and the current time is 20,30,40,50 and 60 seconds.
The 4th step, the foundation of adaptivity detection of dynamic threshold model.
To the processing of the 3rd vehicle pass-through information that detects of step, all kinds of load truck gross weights are carried out random sampling as the basis on this highway respectively, obtain the sample data of such lorry gross weight, by calculating the sample data of overload capacity; Estimate population mean to draw the population mean span with sample value, with this as threshold value increment Delta θ
iValue.The fixed threshold of lorry and threshold value increment see Table 8.
Table 8 adaptivity dynamic weighing device threshold
Annotate: a type car, jubilee wagon, payload ratings M≤2t; Two type cars: medium truck, 2＜M≤7; Three type cars, high capacity waggon, 7＜M≤20; Four type cars, high capacity waggon, 20＜M≤40; Five type cars, super-huge lorry, M 〉=50.
To calculate to get parameter substitution model:
θ
i′＝θ
i+λ·ω
i·Δθ
i，i=1，2…，5；
When the vehicle queue length of on average waiting in line to detect at entrance was respectively 10,20 and 30, the actual threshold that calculates saw Table 9.
The threshold value that obtains is regulated in the different average queue length of table 9 by model
Above-mentioned indices is analyzed as follows:
(1) arterial highway the block up cost savings estimation of measuring station entrance lorry of transfiniting
The present invention is the operational effect of checking adaptivity overload control technology, is chosen at the vehicle number that entrance on average waits in line to detect and is respectively 10,20 and 30.In conjunction with the lorry distribution proportion, utilize multi-vehicle-type adaptivity dynamic weighing model assessment actual threshold, each parameter value according to charge station of horse factory entrance draws the cost total value of blocking up, and specifically sees Table 10～table 12.
The cost savings volume that blocks up when the average queue length of table 10 is 10
By table 11 as can be known, when the average queue length of lorry is 20, can save time 8680.67 hours the whole year at overload management point entrance, the fuel oil amount of money that can save is 63455.71 yuan, the time delays cost that can save is 161634.12 yuan, saves altogether 225089.83 yuan of the costs of blocking up.
The cost savings volume that blocks up when the average queue length of table 12 is 30 lorries
By table 12 as can be known, when lorry 6 flat 4 equal queue lengths are 30, can save time 17177.46 hours the whole year at overload management point entrance, the fuel oil amount of money that can save is 125567.24 yuan, the time delays cost that can save is 319844.3 yuan, saves altogether 445411.57 yuan of the costs of blocking up.
(2) block up cost savings estimation of highway section
Lorry travels on the arterial highway, because a part of superimposed truck is restricted to outside the arterial highway, attainable saving cost comprises that mainly the fuel oil loss saves and delay time at stop cost savings two parts, and the highway section cost estimation amount of money that blocks up sees Table 13.
Whenever travel one kilometer the cost savings volume that blocks up of the annual lorry of table 13
The 5th goes on foot, and is used for the workflow of the dynamic testing method of general arterial highway lorry various
The workflow that the present embodiment is used for the dynamic testing method of general arterial highway lorry various is:
Does is it reasonable that previewing system detect the volume of traffic → threshold value?
Threshold value self-regulation → previewing system sense weight;
Previewing system sense weight → overload?
Continue to travel;
Information indicating → enter overload management point → smart check system sense weight → overload?
Leave the overload management point;
Meet the limit value of setting out on a journey?
Enter overload management district → unload → recheck
→ meet the limit value of setting out on a journey?
Impose a fine → leave the overload management point.
Above-described embodiment shows, can find out by the cost contrast of blocking up of vehicle that difference is on average lined up, and line up longer, and the entrance cost savings of blocking up are more, and the applicability of system is better, congestion alleviation more timely.
Estimation result by above-mentioned illustration gained shows, adaptivity overload management point is set has huge social benefit at highway and the arterial highway measuring station entrance that transfinites, and the real road traffic is more blocked up, the lorry quantity of waiting in line to weigh is more, and the effect of adaptivity overload control technology is better, after passenger-cargo carriage enters highway, the mileage that travels is longer, attainable cost savings are larger, and whole operational effect is better, and economic results in society are larger.
Above-described embodiment is by taking a series of measure to realize the calculating of freeway toll station and general arterial highway overload management point entrance multi-vehicle-type dynamic weighing threshold value, taken into full account the operation characteristic of real road truck traffic stream, compare with original fixed threshold overload management method, has very large dirigibility, the serious queuing that produced when both being unlikely to cause superimposed truck too much is blocked, and can realize again the effective management to overloaded vehicle when the superimposed truck amount is few.
Above-mentioned number percent is numerical percentage.
In above-described embodiment, used single-chip microcomputer is PIC16F877, and related equipment, components and parts are all by commercially available, and the allocation method of device therefor and the method for attachment of used components and parts all are that those skilled in the art can grasp.
Claims (5)
1. be used for the dynamic testing method of lorry various, it is characterized in that step is:
The first step, preliminary preparation
Preliminary preparation comprises to be understood and the data statistics of management point entrance traffic status the required basal conditions that carries out lorry various detection of dynamic highway section, wherein, the basal conditions in highway section comprises the number of track-lines in this highway section, the lane in which the drivers should pay fees quantity and gateway quantity that lorry designed driving speed, the period average velocity that blocks up, expressway entrance and exit are provided with altogether; The statistics of management point entrance year traffic status data comprises percentage and the load condition thereof of the shared quantity of various vehicles in the annual lorry traffic volume of this management point entrance, the 5 kinds of vehicle lorries;
Second step is set up the plane figure of overload management point
The highway section basal conditions that obtains according to the first step and the statistics of management point entrance traffic status, management point at freeway toll station or general arterial highway arranges the overload management point, this overload management point is a kind of entrance adaptivity overload management point, wherein the overload management of freeway toll station setting point comprises previewing system, essence check system and toll island, the overload management point of the management point setting of general arterial highway comprises previewing system and smart check system, described previewing system comprises road measuring device, monitoring camera-shooting equipment, vehicle separator, trigger, adaptivity dynamic weighing equipment, weight display screen and clearing lamp, the essence check system comprises the control computing machine, workstation, static weighing platform and automatic rail machine, toll island comprises automatic rail machine and charge equipment, above-mentioned road measuring device is arranged on the porch of overload management point, being arranged on the monitoring camera-shooting equipment of trackside is connected with control computing machine in the smart check system, vehicle separator and trigger are separately positioned on the both sides, front and back of adaptivity dynamic weighing equipment, and all be connected with control computing machine in the smart check system, weight display screen and clearing lamp all are arranged on the place ahead of adaptivity dynamic weighing equipment, there is not the vehicle of overload to continue by former track direction running, the vehicle that does not have overload of running on expressway will be got visa card at the charge equipment of toll island, automatic rail machine by toll island sails highway into, the overloaded vehicle that does not meet the limit value requirement of setting out on a journey then in accordance with the instructions route enter the overload treatment region and unload, and the static weighing platform by smart check system carries out the essence inspection and rechecks, the vehicle that meets the limit value requirement of setting out on a journey after the essence inspection is rechecked is directly got visa card at the workstation place, the automatic rail machine of overload treatment region lifts automatically, and vehicle sails highway or general arterial highway into;
The 3rd step, the detection of overload management point entrance vehicle pass-through information and overload of vehicle information
(1) queue length and the queuing time of management point obtained in employing based on the method for the vehicle queue detection of video analysis
Use aforesaid monitoring camera-shooting equipment at overload management point entrance, by day under the illumination condition, carrying out automobile storage with the morphologic edge detection method is detecting, and adopt mobile detection window method to realize that vehicle queue detects, then utilize night the headstock car light to detect vehicle, realize that night, vehicle queue detected, obtain thus vehicle pass-through information;
(2) adopt previewing system to the vehicle pre-detection that overloads
At the overload management point, first by above-mentioned previewing system to the vehicle pre-detection that overloads, obtain thus overload of vehicle information, and obtain to carry out the detection information of the superimposed truck of essence inspection;
(3) processing of vehicle pass-through information
Vehicle pass-through information and the overload of vehicle information of the entrance lorry that above-mentioned (1) and (2) step are obtained at overload management point, collect and in time process and obtain a result by the control computing machine take Intel's Duo Processor as core, license plate number when lorry is passed through previewing system, vehicle, axle is heavy, gross weight and speed information are all inputted the control computer information management database in the above-mentioned control computing machine, come the above-mentioned data taken in this database of Treatment Analysis with Intel's Duo Processor by the adaptivity detection of dynamic threshold model in the 4th step, namely obtain traffick quantity, the distribution situation of composition and overload capacity;
The 4th step, the foundation of adaptivity detection of dynamic threshold model
To the processing of the 3rd vehicle pass-through information that detects of step, set up adaptivity detection of dynamic threshold model as follows:
θ
i′＝θ
i+λ·ω
i·Δθ
i，i=1，2…，5；
In the following formula:
θ
i'---the actual detection threshold of i type car in the dynamic detection system, the threshold value after namely adjusting;
θ
i---when not considering vehicle arrival rate or the volume of traffic, i type car initial threshold, i.e. fixed threshold in the dynamic detection system;
Δ θ
i---the threshold value increment that an i class of every increase lorry produces;
ω
i---i class vehicle proportion;
λ---the lorry quantity of waiting in line;
The 5th goes on foot, and is used for the workflow of the dynamic testing method of lorry various
The workflow that is used for the dynamic testing method of highway lorry various is:
Does is it reasonable that previewing system detect the volume of traffic → threshold value?
Threshold value self-regulation → previewing system sense weight;
Previewing system sense weight → overload?
Continue to travel;
Information indicating → enter overload management point → smart check system sense weight → meet limit value of setting out on a journey?
Enter overload treatment region → unload → recheck
Meet the limit value of setting out on a journey?
Get visa card → sail into highway.
The workflow that is used for the dynamic testing method of general arterial highway lorry various is:
Does is it reasonable that previewing system detect the volume of traffic → threshold value?
Threshold value self-regulation → previewing system sense weight;
Previewing system sense weight → overload?
Continue to travel;
Information indicating → enter overload management point → smart check system sense weight → overload?
Leave the overload management point;
Meet the limit value of setting out on a journey?
Enter overload management district → unload → recheck
Meet the limit value of setting out on a journey?
Impose a fine → leave the overload management point.
2. said dynamic testing method for the lorry various according to claim 1, road measuring device in the described previewing system is made of sensor, microcontroller and signal inputoutput unit three parts, the connected mode of sensor, microcontroller and inputoutput unit three parts is: in the oscillatory circuit of the telefault access signal input part of sensor, microcontroller is that single-chip microcomputer has judged whether that by the oscillation signal frequency that the measurement oscillatory circuit sends vehicle passes through, export judged result by signal output component at last, and the display working condition indication.
3. said dynamic testing method for the lorry various according to claim 2, described sensor is under the 10mm～15mm of the ground of overrun and overload measuring station, excavating a length is that 1.8m～2.2m, width are that 9mm～11mm and the degree of depth are the groove of 1.3m～1.7m, twine along this groove with wire, consist of thus the square telefault that a size is 1.8m * 1.3m～2.2m * 1.7m, by underdrain, with the low-resistance wire two section headers of above-mentioned telefault are guided in the signal input part oscillatory circuit again.
4. said dynamic testing method for the lorry various according to claim 2, described microcontroller is the PIC16F877 single-chip microcomputer.
5. said dynamic testing method for the lorry various according to claim 2, described signal inputoutput unit is that light is every the switching value input/output board.
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