CN102542812B - PDA (Personal Digital Assistant)-based overall speed detecting and data processing method - Google Patents
PDA (Personal Digital Assistant)-based overall speed detecting and data processing method Download PDFInfo
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Abstract
The invention discloses a PDA (Personal Digital Assistant)-based overall speed detecting and data processing method which comprises the steps of: inputting a detection station and stake number data through a PDA; when running vehicles arrive in sight, inputting the license plate numbers and vehicle type data through the PDA; when the running vehicles just arrive at the detection station, recording and displaying the moments when the running vehicles pass through the detection station through the PDA; after the running vehicles pass through the detection state, counting the number of the running vehicles running through the detection station and the sample numbers of a certain vehicle type by the PDA; acquiring data stored in PDAs at a plurality of detection stations by an upper computer and storing the data in an upper computer disc; and analyzing the data by the upper computer to obtain an analysis result and then displaying the analysis result in real time. The method provided by the invention is reasonable in design, convenient for use and operation, high in intellectualization degree, high in data acquiring and processing efficiency, high in data accuracy and strong in practicability, manpower and material resources are saved, and the method is convenient for application and use.
Description
Technical field
The present invention relates to the intelligent transport technology field, especially relate to a kind of overall speed based on PDA and detect and data processing method.
Background technology
Along with rapid development of economy, automobile rapidly increases as the important vehicles of the mankind, has driven the quick construction of highway thereupon.Highway brings great convenience not only for people's traffic trip, and has greatly promoted development and national economy.Understanding the operation characteristic of automobile on highway is the substance that carries out communications and transportation statistical study, Evaluation of Traffic Safety, traffic flow monitoring.Overall speed can react the operation characteristic of vehicle in section, and it is carried out fast detecting is the important content of traffic and transport field research with handling.
Carry out overall speed at highway and detect in the test, mostly in the prior art adopt the manually-operated stopwatches, and registration of vehicle transit time, vehicle, license plate number etc., and to the data of gathering classify, work such as analysis, processing.Prior art exists defective and deficiencies such as data acquisition efficiency is low, data accuracy is poor, waste time and energy in the road section speed of a motor vehicle testing process.
Summary of the invention
Technical matters to be solved by this invention is at above-mentioned deficiency of the prior art, provide a kind of overall speed based on PDA to detect and data processing method, it is reasonable in design, use easy to operate, intelligent degree height, data acquisition and treatment effeciency height, the data accuracy height, use manpower and material resources sparingly, realization is convenient and realize that cost is low, practical, can effectively solve defective and deficiencies such as the existing in prior technology data acquisition efficiency is low, data accuracy is poor, waste time and energy, result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of overall speed based on PDA detects and data processing method, it is characterized in that this method may further comprise the steps:
Step 1, access the data initialization interface of data initialization module correspondence by the parameter set unit of PDA, and import measuring station point data and pile No. data successively by described data initialization interface, described data initialization module is stored in measuring station point data and the pile No. data of input in the corresponding data memory module;
Step 2, when driving vehicle arrives within the sight line, access the data inputting interface of data input module correspondence by the parameter set unit of PDA, and import license plate number data and model data successively by described data inputting interface, described data input module is stored in license plate number data and the model data of input in the corresponding data memory module;
Step 3, arrive just when detecting website when driving vehicle, access the data processing interface of data processing module correspondence by the parameter set unit of PDA, and by the described data processing of operation interface, record and show the moment of the vehicle passing detection website that travels, the moment that data processing module will record is stored in the corresponding data memory module;
Step 4, when driving vehicle by after detecting website, described PDA is by being integrated in its inner differential count module to counting by the driving vehicle that detects website sample number total and certain vehicle, and the differential count module is stored in the driving vehicle sum of record and the sample number of certain vehicle in the corresponding data memory module; If the phenomenon of stopping does not appear in driving vehicle, moment of record is stored in the corresponding data memory module and remains unchanged; If the parking phenomenon has appearred in driving vehicle, data by the data processing module correspondence are handled the interface and described driving vehicle were made marks by the moment of detecting website or described driving vehicle was deleted from corresponding data memory module by the moment of detecting website, simultaneously, described PDA adjusts accordingly by being integrated in its inner differential count module sample number total to driving vehicle and certain vehicle;
Step 5, will be positioned at a plurality of detection websites place by data telecommunication line or cordless communication network PDA successively with host computer wired connection or wireless connections, gather sample number, measuring station point data, pile No. data, a plurality of license plate number data, a plurality of model data and a plurality of moment data of the driving vehicle sum that is stored in the PDA data memory module that is arranged in a plurality of detection websites place and stores, certain vehicle successively and be stored in the host computer disk by host computer;
After step 6, described host computer read the data that are stored in the host computer disk by its inner integrated data analysis processing module and the data that read are carried out analyzing and processing, draw analysis processing result and analysis processing result is shown in real time.
Above-mentioned a kind of overall speed based on PDA detects and data processing method, it is characterized in that: analysis processing result described in the step 6 comprises that average velocity standard deviation, each vehicle vehicle proportion, local train current density, hourly traffic volume, the control vehicle of the overall speed of the overall speed of each driving vehicle, every kind of vehicle, interval max. speed, the interval minimum speed of a motor vehicle, the hundredths speed of a motor vehicle, every kind of vehicle overtake other vehicles number and control vehicle by the number of overtaking other vehicles.
Above-mentioned a kind of overall speed based on PDA detects and data processing method, it is characterized in that: host computer described in the step 6 reads the data that are stored in the host computer disk and the data that read is carried out analyzing and processing by its inner integrated data analysis processing module, and its analyzing and processing process may further comprise the steps:
Step 601, described data analysis processing module are according to one-to-one relationship and the formula of license plate number data and model data: t
n=t
Bn-t
An, a plurality of moment data are handled, draw each driving vehicle by the time t between detection zone
n, wherein, n represent license plate number data and model data one to one driving vehicle sum and n be natural number, t
AnExpression is arranged in a plurality of moment data that the PDA data memory module that detects website A place is stored, t
BnExpression is arranged in a plurality of moment data that the PDA data memory module that detects website B place is stored;
Step 602, at first, described data analysis processing module are called its each inner integrated driving vehicle overall speed computing module and according to formula: v
n=s/t
n, draw the overall speed v of each driving vehicle
nThen, described data analysis processing module is called its inner integrated overall speed order module and the overall speed of many driving vehicles drawing is carried out from big to small or is arranged from small to large, draw interval max. speed and the interval minimum speed of a motor vehicle, wherein, s represents to detect zone distance and the s=Z between website A and the detection website B
B-Z
A, Z
AExpression is arranged in the pile No. data that the PDA data memory module that detects website A place is stored, Z
BExpression is arranged in the pile No. data that the PDA data memory module that detects website B place is stored;
Step 603, described data analysis processing module are called its inner integrated every kind of vehicle overall speed computing module and according to formula:
Draw the overall speed v of every kind of vehicle
i, wherein, i represents the vehicle sum and is natural number, m
rThe sample number of representing certain vehicle;
Step 604, described data analysis processing module are called its inner integrated hundredths speed of a motor vehicle computing module and according to formula:
Draw the k position speed of a motor vehicle v of each vehicle
k, wherein, the integral part that d is got in [d] expression, v
[d]The expression precedence is the speed of a motor vehicle calculated value on [d], v
[d+1]The expression precedence is the speed of a motor vehicle calculated value on [d+1], and k is natural number;
Step 605, described data analysis processing module are called the average velocity standard deviation computing module of its inner integrated every kind of vehicle and according to formula:
Draw the average velocity standard deviation α of every kind of vehicle, wherein, v
nThe overall speed of representing each car in certain vehicle;
Step 606, described data analysis processing module are called its inner each integrated vehicle vehicle proportion computing module and according to formula:
Draw each vehicle vehicle proportion q;
Step 607, described data analysis processing module are called its inner integrated local train current density computing module and according to formula: y=n
B-n
A, draw t constantly at the vehicle fleet size y that detects between website A and the detection website B, wherein, n
BExpression t is arranged in the driving vehicle sum that the PDA data memory module that detects website B place is stored, n constantly
AExpression t is arranged in the driving vehicle sum that the PDA data memory module that detects website A place is stored constantly;
Step 608, described data analysis processing module are called its inner integrated hourly traffic volume computing module and according to formula: z=n
A2-n
A1Or z=n
B2-n
B1, draw and detect website A or detect the vehicle fleet size z that website B place passes through in hour, wherein, n
A2Expression t+1 is arranged in the driving vehicle sum that the PDA data memory module that detects website A place is stored, n constantly
A1Expression t is arranged in the driving vehicle sum that the PDA data memory module that detects website A place is stored, n constantly
B2Expression t+1 is arranged in the driving vehicle sum that the PDA data memory module that detects website B place is stored, n constantly
B1Expression t is arranged in the driving vehicle sum that the PDA data memory module that detects website B place is stored constantly;
Step 609, choose a certain driving vehicle as control vehicle, described data analysis processing module is called its inner integrated several computing modules of overtaking other vehicles the data that the data analysis processing module reads is carried out comprehensive analysis processing, draws the number of overtaking other vehicles of control vehicle;
Step 6010, choose a certain driving vehicle as control vehicle, described data analysis processing module is called its inner integrated several computing modules of being overtaken other vehicles the data that the data analysis processing module is read is carried out comprehensive analysis processing, the quilt that the draws control vehicle number of overtaking other vehicles.
Above-mentioned a kind of overall speed based on PDA detects and data processing method, it is characterized in that: k=15 described in the step 604,25,30,50,85,90.
Above-mentioned a kind of overall speed based on PDA detects and data processing method, it is characterized in that: the processing module of data analysis described in the step 609 is called its inner integrated several computing modules of overtaking other vehicles the data that the data analysis processing module reads is carried out comprehensive analysis processing, and its comprehensive analysis processing process may further comprise the steps:
Step 6091, at period [t
A-Δ t, t
A] in search the vehicle of control vehicle its front when detecting website A and when detecting website B its back vehicle, and license plate number data and the model data of the vehicle that finds left among the structure A;
Step 6092, at period [t
B, t
B+ Δ t] in search the vehicle of control vehicle its front when detecting website A and when detecting website B its back vehicle, and license plate number data and the model data of the vehicle that finds left in the structure B;
Step 6093, the license plate number data that will leave each car among the structure A in and model data and the license plate number data and the model data that leave each car in the structure B in compare, if the license plate number data are all identical with model data, just be judged as the vehicle that control vehicle surpasses in time period Δ t;
Step 6094, the vehicle that surpasses control vehicle is counted, drawn the number of overtaking other vehicles of control vehicle;
Wherein, t
ARepresent that described control vehicle arrives the time when detecting website A, t
BRepresent that described control vehicle arrives the time when detecting website B, Δ t represents the time period and the Δ t=t that add up
B-t
A
Above-mentioned a kind of overall speed based on PDA detects and data processing method, it is characterized in that: the processing module of data analysis described in the step 6010 is called its inner integrated several computing modules of being overtaken other vehicles the data that the data analysis processing module is read is carried out comprehensive analysis processing, and its comprehensive analysis processing process may further comprise the steps:
Step 60101, at period [t
A-Δ t, t
A] in search control vehicle when detecting website A its back vehicle and when detecting website B the vehicle of its front, and license plate number data and the model data of the vehicle that finds left among the structure A;
Step 60102, at period [t
B, t
B+ Δ t] in search control vehicle when detecting website A its back vehicle and when detecting website B the vehicle of its front, and license plate number data and the model data of the vehicle that finds left in the structure B;
Step 60103, the license plate number data that will leave each car among the structure A in and model data and the license plate number data and the model data that leave each car in the structure B in compare, if the license plate number data are all identical with model data, just be judged as the vehicle that in time period Δ t, surpasses control vehicle;
Step 60104, the vehicle that surpasses control vehicle is counted the quilt that the draws control vehicle number of overtaking other vehicles;
Wherein, t
ARepresent that described control vehicle arrives the time when detecting website A, t
BRepresent that described control vehicle arrives the time when detecting website B, Δ t represents the time period and the Δ t=t that add up
B-t
A
Above-mentioned a kind of overall speed based on PDA detects and data processing method, and it is characterized in that: the parameter set unit of described PDA is touch-screen.
Above-mentioned a kind of overall speed based on PDA detects and data processing method, and it is characterized in that: data telecommunication line described in the step 5 is the usb data communication line.
The present invention compared with prior art has the following advantages:
1, the present invention is at first by PDA input and storage measuring station point data, pile No. data, license plate number data and model data, record and show the moment of the vehicle passing detection website that travels by PDA, by host computer the data of storing among the PDA are gathered and analyzing and processing then, clear, the easy understanding of principle, use easy to operate, intelligent degree height.
2, the PDA among the present invention both can be connected with host computer in wired mode and communicated by letter by data telecommunication line, also can be connected with host computer wirelessly and communicate by letter by public cordless communication network, flexible and convenient to use, Scalable Performance is good.
3, the present invention can realize paperless work, and data acquisition and treatment effeciency height have reduced personal error effectively, record, store and analyze the data accuracy height that draws, use manpower and material resources sparingly.
4, the analysis processing result that can access by the present invention comprise average velocity standard deviation, each vehicle vehicle proportion, local train current density, hourly traffic volume, the control vehicle of the overall speed of the overall speed of each driving vehicle, every kind of vehicle, interval max. speed, the interval minimum speed of a motor vehicle, the hundredths speed of a motor vehicle, every kind of vehicle overtake other vehicles the number and control vehicle by the number of overtaking other vehicles, data processing speed fast and obtain contain much information complete function.
4, the present invention is reasonable in design, and realization is convenient and realize that cost is low.
5, of the present invention practical, can record the both macro and micro traffic flow parameter of certain section highway continuously, fast, with result's storage and show that can be used in vehicle on highway travelling speed The Characteristics, result of use is good, is convenient to promote the use of.
In sum, the present invention is reasonable in design, use easy to operate, intelligent degree height, data acquisition and treatment effeciency height, the data accuracy height uses manpower and material resources sparingly, and realization is convenient and realize that cost is low, practical, can effectively solve defective and deficiencies such as the existing in prior technology data acquisition efficiency is low, data accuracy is poor, waste time and energy, result of use is good, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is method flow diagram of the present invention.
Embodiment
A kind of overall speed based on PDA as shown in Figure 1 detects and data processing method, may further comprise the steps:
Step 1, access the data initialization interface of data initialization module correspondence by the parameter set unit of PDA, and import measuring station point data and pile No. data successively by described data initialization interface, described data initialization module is stored in measuring station point data and the pile No. data of input in the corresponding data memory module;
Step 2, when driving vehicle arrives within the sight line, access the data inputting interface of data input module correspondence by the parameter set unit of PDA, and import license plate number data and model data successively by described data inputting interface, described data input module is stored in license plate number data and the model data of input in the corresponding data memory module;
During specific implementation, can license plate number be set at the data inputting interface selects window and vehicle to select window, for example license plate number selects first window of window to be set to drop-down menu, can select the abbreviation in each province and city, be used for determining the driving vehicle of process belong to which provinces and cities, license plate number selects second window of window to be used for importing license plate number numeral or alphabetical; Vehicle selects window also to be set to drop-down menu, selects vehicle in drop-down menu, vehicle classification is pre-set and enrolls in the program, and for example vehicle comprises station wagon, middle bus, motorbus, diaxon lorry, three-axle truck, four-axle truck etc.
Step 3, arrive just when detecting website when driving vehicle, access the data processing interface of data processing module correspondence by the parameter set unit of PDA, and by the described data processing of operation interface, record and show the moment of the vehicle passing detection website that travels, the moment that data processing module will record is stored in the corresponding data memory module;
During specific implementation, can handle the interface in the data data timing window or button are set, when driving vehicle arrives the detection website just, click the timing button, timing window record also shows the PDA that reads in constantly, and will be somebody's turn to do constantly with the form in " time: divide: second " and store, and makes things convenient for subsequent calculations.
Step 4, when driving vehicle by after detecting website, described PDA is by being integrated in its inner differential count module to counting by the driving vehicle that detects website sample number total and certain vehicle, and the differential count module is stored in the driving vehicle sum of record and the sample number of certain vehicle in the corresponding data memory module; If the phenomenon of stopping does not appear in driving vehicle, moment of record is stored in the corresponding data memory module and remains unchanged; If the parking phenomenon has appearred in driving vehicle, data by the data processing module correspondence are handled the interface and described driving vehicle were made marks by the moment of detecting website or described driving vehicle was deleted from corresponding data memory module by the moment of detecting website, simultaneously, described PDA adjusts accordingly by being integrated in its inner differential count module sample number total to driving vehicle and certain vehicle;
During specific implementation, handle the interface in data save button and delete button are set, when pressing save button, the sample number average of the moment data of measuring station point data, pile No. data, license plate number data and model data and the record of input, driving vehicle sum and certain vehicle stores in the data memory module of PDA, when finding that the parking phenomenon has appearred in driving vehicle, the car data that will stop in the interval make marks (can mark " √ " or " * "), perhaps press delete button, deletion parking item number certificate.
Step 5, will be positioned at a plurality of detection websites place by data telecommunication line or cordless communication network PDA successively with host computer wired connection or wireless connections, gather sample number, measuring station point data, pile No. data, a plurality of license plate number data, a plurality of model data and a plurality of moment data of the driving vehicle sum that is stored in the PDA data memory module that is arranged in a plurality of detection websites place and stores, certain vehicle successively and be stored in the host computer disk by host computer;
After step 6, described host computer read the data that are stored in the host computer disk by its inner integrated data analysis processing module and the data that read are carried out analyzing and processing, draw analysis processing result and analysis processing result is shown in real time.
In the present embodiment, the parameter set unit of described PDA is touch-screen.Data telecommunication line described in the step 5 is the usb data communication line.Analysis processing result described in the step 6 comprise average velocity standard deviation, each vehicle vehicle proportion, local train current density, hourly traffic volume, the control vehicle of the overall speed of the overall speed of each driving vehicle, every kind of vehicle, interval max. speed, the interval minimum speed of a motor vehicle, the hundredths speed of a motor vehicle, every kind of vehicle overtake other vehicles the number and control vehicle by the number of overtaking other vehicles.
When concrete coding, be stored in the driving vehicle sum in the data memory module of PDA, sample number, measuring station point data, pile No. data, a plurality of license plate number data, a plurality of model data and a plurality of moment data of certain vehicle all can be defined as the structure type, comprise integer quantity-pile No. data, character type amount-license plate number data, time quantum-year, month, day, hour, min, second in the structure.
In the present embodiment, host computer described in the step 6 reads the data that are stored in the host computer disk and the data that read is carried out analyzing and processing by its inner integrated data analysis processing module, and its analyzing and processing process may further comprise the steps:
Step 601, described data analysis processing module are according to one-to-one relationship and the formula of license plate number data and model data: t
n=t
Bn-t
An, a plurality of moment data are handled, draw each driving vehicle by the time t between detection zone
nWherein, n represent license plate number data and model data one to one driving vehicle sum and n be natural number, t
AnExpression is arranged in a plurality of moment data that the PDA data memory module that detects website A place is stored, t
BnExpression is arranged in a plurality of moment data that the PDA data memory module that detects website B place is stored;
Particularly, when constantly with the form storage in " time: divide: second ", t
n=(t
BnTime * 3600+t
BnBranch * 60+t
BnSecond-t
AnTime * 3600-t
AnBranch * 60-t
AnSecond)/3600, the time t that calculates
nUnit be h.
Step 602, at first, described data analysis processing module are called its each inner integrated driving vehicle overall speed computing module and according to formula: v
n=s/t
n, draw the overall speed v of each driving vehicle
nThen, described data analysis processing module is called its inner integrated overall speed order module and the overall speed of many driving vehicles drawing is carried out from big to small or is arranged from small to large, draws interval max. speed and the interval minimum speed of a motor vehicle; Wherein, s represents to detect zone distance and the s=Z between website A and the detection website B
B-Z
AZ
AExpression is arranged in the pile No. data that the PDA data memory module that detects website A place is stored, Z
BExpression is arranged in the pile No. data that the PDA data memory module that detects website B place is stored;
Step 603, described data analysis processing module are called its inner integrated every kind of vehicle overall speed computing module and according to formula:
Draw the overall speed v of every kind of vehicle
iWherein, i represents the vehicle sum and is natural number, m
rThe sample number of representing certain vehicle;
Step 604, described data analysis processing module are called its inner integrated hundredths speed of a motor vehicle computing module and according to formula:
Draw the k position speed of a motor vehicle v of each vehicle
kWherein, the integral part that d is got in [d] expression, v
[d]The expression precedence is the speed of a motor vehicle calculated value on [d], v
[d+1]The expression precedence is the speed of a motor vehicle calculated value on [d+1], and k is natural number;
Wherein, the common value of k is 15,25,30,50,85,90.
For example need to ask the 10th speed of a motor vehicle v
10, known data are as shown in the table:
k 1 2 3 4 5 6 7 ... 19
v
k 24 25 30 3.0 3.1 3.1 3.1 ... 3.9
With given data substitution formula
Obtain:
d＝1+(19-1)×0.10＝2.8
v
10＝v
2+(v
3-v
2)(2.8-2)＝25+(30-25)×0.8＝29(km/h)。
Step 605, described data analysis processing module are called the average velocity standard deviation computing module of its inner integrated every kind of vehicle and according to formula:
Draw the average velocity standard deviation α of every kind of vehicle; Wherein, v
nThe overall speed of representing each car in certain vehicle;
Step 606, described data analysis processing module are called its inner each integrated vehicle vehicle proportion computing module and according to formula:
Draw each vehicle vehicle proportion q;
Step 607, described data analysis processing module are called its inner integrated local train current density computing module and according to formula: y=n
B-n
A, draw t constantly at the vehicle fleet size y that detects between website A and the detection website B; Wherein, n
BExpression t is arranged in the driving vehicle sum that the PDA data memory module that detects website B place is stored, n constantly
AExpression t is arranged in the driving vehicle sum that the PDA data memory module that detects website A place is stored constantly;
Step 608, described data analysis processing module are called its inner integrated hourly traffic volume computing module and according to formula: z=n
A2-n
A1Or z=n
B2-n
B1, draw and detect website A or detect the vehicle fleet size z that website B place passes through in hour; Wherein, n
A2Expression t+1 is arranged in the driving vehicle sum that the PDA data memory module that detects website A place is stored, n constantly
A1Expression t is arranged in the driving vehicle sum that the PDA data memory module that detects website A place is stored, n constantly
B2Expression t+1 is arranged in the driving vehicle sum that the PDA data memory module that detects website B place is stored, n constantly
B1Expression t is arranged in the driving vehicle sum that the PDA data memory module that detects website B place is stored constantly;
Step 609, choose a certain driving vehicle as control vehicle, described data analysis processing module is called its inner integrated several computing modules of overtaking other vehicles the data that the data analysis processing module reads is carried out comprehensive analysis processing, draws the number of overtaking other vehicles of control vehicle;
Step 6010, choose a certain driving vehicle as control vehicle, described data analysis processing module is called its inner integrated several computing modules of being overtaken other vehicles the data that the data analysis processing module is read is carried out comprehensive analysis processing, the quilt that the draws control vehicle number of overtaking other vehicles.
In the present embodiment, the processing module of data analysis described in the step 609 is called its inner integrated several computing modules of overtaking other vehicles the data that the data analysis processing module reads is carried out comprehensive analysis processing, and its comprehensive analysis processing process may further comprise the steps:
Step 6091, at period [t
A-Δ t, t
A] in search the vehicle of control vehicle its front when detecting website A and when detecting website B its back vehicle, and license plate number data and the model data of the vehicle that finds left among the structure A;
Step 6092, at period [t
B, t
B+ Δ t] in search the vehicle of control vehicle its front when detecting website A and when detecting website B its back vehicle, and license plate number data and the model data of the vehicle that finds left in the structure B;
Step 6093, the license plate number data that will leave each car among the structure A in and model data and the license plate number data and the model data that leave each car in the structure B in compare, if the license plate number data are all identical with model data, just be judged as the vehicle that control vehicle surpasses in time period Δ t;
Step 6094, the vehicle that surpasses control vehicle is counted, drawn the number of overtaking other vehicles of control vehicle;
Wherein, t
ARepresent that described control vehicle arrives the time when detecting website A, t
BRepresent that described control vehicle arrives the time when detecting website B, Δ t represents the time period and the Δ t=t that add up
B-t
A
In the present embodiment, the processing module of data analysis described in the step 6010 is called its inner integrated several computing modules of being overtaken other vehicles the data that the data analysis processing module is read is carried out comprehensive analysis processing, and its comprehensive analysis processing process may further comprise the steps:
Step 60101, at period [t
A-Δ t, t
A] in search control vehicle when detecting website A its back vehicle and when detecting website B the vehicle of its front, and license plate number data and the model data of the vehicle that finds left among the structure A;
Step 60102, at period [t
B, t
B+ Δ t] in search control vehicle when detecting website A its back vehicle and when detecting website B the vehicle of its front, and license plate number data and the model data of the vehicle that finds left in the structure B;
Step 60103, the license plate number data that will leave each car among the structure A in and model data and the license plate number data and the model data that leave each car in the structure B in compare, if the license plate number data are all identical with model data, just be judged as the vehicle that in time period Δ t, surpasses control vehicle;
Step 60104, the vehicle that surpasses control vehicle is counted the quilt that the draws control vehicle number of overtaking other vehicles;
Wherein, t
ARepresent that described control vehicle arrives the time when detecting website A, t
BRepresent that described control vehicle arrives the time when detecting website B, Δ t represents the time period and the Δ t=t that add up
B-t
A
Particularly, when host computer shows result, laterally show each vehicle, the overall speed that vertically shows the every kind of vehicle that calculates, interval max. speed, the interval minimum speed of a motor vehicle, the hundredths speed of a motor vehicle, the average velocity standard deviation of every kind of vehicle, information such as each vehicle vehicle proportion, " checking the local train current density " and " checking hourly traffic volume " button can be set below display window, after clicking " checking hourly traffic volume " button, open hourly traffic volume and check window, can check the time period volume of traffic that realization configures, also can input time the section inquiry, these data can be preserved if desired, make a copy of or external printing device prints; The method of checking the local train current density is similar, does not repeat them here.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (7)
1. the overall speed based on PDA detects and data processing method, it is characterized in that this method may further comprise the steps:
Step 1, access the data initialization interface of data initialization module correspondence by the parameter set unit of PDA, and import measuring station point data and pile No. data successively by described data initialization interface, described data initialization module is stored in measuring station point data and the pile No. data of input in the corresponding data memory module;
Step 2, when driving vehicle arrives within the sight line, access the data inputting interface of data input module correspondence by the parameter set unit of PDA, and import license plate number data and model data successively by described data inputting interface, described data input module is stored in license plate number data and the model data of input in the corresponding data memory module;
Step 3, arrive just when detecting website when driving vehicle, access the data processing interface of data processing module correspondence by the parameter set unit of PDA, and by the described data processing of operation interface, record and show the moment of the vehicle passing detection website that travels, the moment that data processing module will record is stored in the corresponding data memory module;
Step 4, when driving vehicle by after detecting website, described PDA is by being integrated in its inner differential count module to counting by the driving vehicle that detects website sample number total and certain vehicle, and the differential count module is stored in the driving vehicle sum of record and the sample number of certain vehicle in the corresponding data memory module; If the phenomenon of stopping does not appear in driving vehicle, moment of record is stored in the corresponding data memory module and remains unchanged; If the parking phenomenon has appearred in driving vehicle, data by the data processing module correspondence are handled the interface and described driving vehicle were made marks by the moment of detecting website or described driving vehicle was deleted from corresponding data memory module by the moment of detecting website, simultaneously, described PDA adjusts accordingly by being integrated in its inner differential count module sample number total to driving vehicle and certain vehicle;
Step 5, will be positioned at a plurality of detection websites place by data telecommunication line or cordless communication network PDA successively with host computer wired connection or wireless connections, gather sample number, measuring station point data, pile No. data, a plurality of license plate number data, a plurality of model data and a plurality of moment data of the driving vehicle sum that is stored in the PDA data memory module that is arranged in a plurality of detection websites place and stores, certain vehicle successively and be stored in the host computer disk by host computer;
After step 6, described host computer read the data that are stored in the host computer disk by its inner integrated data analysis processing module and the data that read are carried out analyzing and processing, draw analysis processing result and analysis processing result is shown in real time;
Analysis processing result described in the step 6 comprise average velocity standard deviation, each vehicle vehicle proportion, local train current density, hourly traffic volume, the control vehicle of the overall speed of the overall speed of each driving vehicle, every kind of vehicle, interval max. speed, the interval minimum speed of a motor vehicle, the hundredths speed of a motor vehicle, every kind of vehicle overtake other vehicles the number and control vehicle by the number of overtaking other vehicles.
2. detect and data processing method according to the described a kind of overall speed based on PDA of claim 1, it is characterized in that: host computer described in the step 6 reads the data that are stored in the host computer disk and the data that read is carried out analyzing and processing by its inner integrated data analysis processing module, and its analyzing and processing process may further comprise the steps:
Step 601, described data analysis processing module are according to one-to-one relationship and the formula of license plate number data and model data: t
n=t
Bn-t
An, a plurality of moment data are handled, draw each driving vehicle by the time t between detection zone
nWherein, n represent license plate number data and model data one to one driving vehicle sum and n be natural number, t
AnExpression is arranged in a plurality of moment data that the PDA data memory module that detects website A place is stored, t
BnExpression is arranged in a plurality of moment data that the PDA data memory module that detects website B place is stored;
Step 602, at first, described data analysis processing module are called its each inner integrated driving vehicle overall speed computing module and according to formula: v
n=s/t
n, draw the overall speed v of each driving vehicle
nThen, described data analysis processing module is called its inner integrated overall speed order module and the overall speed of many driving vehicles drawing is carried out from big to small or is arranged from small to large, draw interval max. speed and the interval minimum speed of a motor vehicle, wherein, s represents to detect zone distance and the s=Z between website A and the detection website B
B-Z
A, Z
AExpression is arranged in the pile No. data that the PDA data memory module that detects website A place is stored, Z
BExpression is arranged in the pile No. data that the PDA data memory module that detects website B place is stored;
Step 603, described data analysis processing module are called its inner integrated every kind of vehicle overall speed computing module and according to formula:
Draw the overall speed v of every kind of vehicle
i, wherein, i represents the vehicle sum and is natural number, m
rThe sample number of representing certain vehicle;
Step 604, described data analysis processing module are called its inner integrated hundredths speed of a motor vehicle computing module and according to formula:
Draw the k position speed of a motor vehicle v of each vehicle
k, wherein, the integral part that d is got in [d] expression, v
[d]The expression precedence is the speed of a motor vehicle calculated value on [d], v
[d+1]The expression precedence is the speed of a motor vehicle calculated value on [d+1], and k is natural number;
Step 605, described data analysis processing module are called the average velocity standard deviation computing module of its inner integrated every kind of vehicle and according to formula:
Draw the average velocity standard deviation α of every kind of vehicle, wherein, v
nThe overall speed of representing each car in certain vehicle;
Step 606, described data analysis processing module are called its inner each integrated vehicle vehicle proportion computing module and according to formula:
Draw each vehicle vehicle proportion q;
Step 607, described data analysis processing module are called its inner integrated local train current density computing module and according to formula: y=n
B-n
A, draw t constantly at the vehicle fleet size y that detects between website A and the detection website B, wherein, n
BExpression t is arranged in the driving vehicle sum that the PDA data memory module that detects website B place is stored, n constantly
AExpression t is arranged in the driving vehicle sum that the PDA data memory module that detects website A place is stored constantly;
Step 608, described data analysis processing module are called its inner integrated hourly traffic volume computing module and according to formula: z=n
A2-n
A1Or z=n
B2-n
B1, draw and detect website A or detect the vehicle fleet size z that website B place passes through in hour, wherein, n
A2Expression t+1 is arranged in the driving vehicle sum that the PDA data memory module that detects website A place is stored, n constantly
A1Expression t is arranged in the driving vehicle sum that the PDA data memory module that detects website A place is stored, n constantly
B2Expression t+1 is arranged in the driving vehicle sum that the PDA data memory module that detects website B place is stored, n constantly
B1Expression t is arranged in the driving vehicle sum that the PDA data memory module that detects website B place is stored constantly;
Step 609, choose a certain driving vehicle as control vehicle, described data analysis processing module is called its inner integrated several computing modules of overtaking other vehicles the data that the data analysis processing module reads is carried out comprehensive analysis processing, draws the number of overtaking other vehicles of control vehicle;
Step 6010, choose a certain driving vehicle as control vehicle, described data analysis processing module is called its inner integrated several computing modules of being overtaken other vehicles the data that the data analysis processing module is read is carried out comprehensive analysis processing, the quilt that the draws control vehicle number of overtaking other vehicles.
3. detect and data processing method according to the described a kind of overall speed based on PDA of claim 2, it is characterized in that: k=15 described in the step 604,25,30,50,85,90.
4. detect and data processing method according to the described a kind of overall speed based on PDA of claim 2, it is characterized in that: the processing module of data analysis described in the step 609 is called its inner integrated several computing modules of overtaking other vehicles the data that the data analysis processing module reads is carried out comprehensive analysis processing, and its comprehensive analysis processing process may further comprise the steps:
Step 6091, at period [t
A-Δ t, t
A] in search the vehicle of control vehicle its front when detecting website A and when detecting website B its back vehicle, and license plate number data and the model data of the vehicle that finds left among the structure A;
Step 6092, at period [t
B, t
B+ Δ t] in search the vehicle of control vehicle its front when detecting website A and when detecting website B its back vehicle, and license plate number data and the model data of the vehicle that finds left in the structure B;
Step 6093, the license plate number data that will leave each car among the structure A in and model data and the license plate number data and the model data that leave each car in the structure B in compare, if the license plate number data are all identical with model data, just be judged as the vehicle that control vehicle surpasses in time period Δ t;
Step 6094, the vehicle that surpasses control vehicle is counted, drawn the number of overtaking other vehicles of control vehicle;
Wherein, t
ARepresent that described control vehicle arrives the time when detecting website A, t
BRepresent that described control vehicle arrives the time when detecting website B, Δ t represents the time period and the Δ t=t that add up
B-t
A
5. detect and data processing method according to the described a kind of overall speed based on PDA of claim 2, it is characterized in that: the processing module of data analysis described in the step 6010 is called its inner integrated several computing modules of being overtaken other vehicles the data that the data analysis processing module is read is carried out comprehensive analysis processing, and its comprehensive analysis processing process may further comprise the steps:
Step 60101, at period [t
A-Δ t, t
A] in search control vehicle when detecting website A its back vehicle and when detecting website B the vehicle of its front, and license plate number data and the model data of the vehicle that finds left among the structure A;
Step 60102, at period [t
B, t
B+ Δ t] in search control vehicle when detecting website A its back vehicle and when detecting website B the vehicle of its front, and license plate number data and the model data of the vehicle that finds left in the structure B;
Step 60103, the license plate number data that will leave each car among the structure A in and model data and the license plate number data and the model data that leave each car in the structure B in compare, if the license plate number data are all identical with model data, just be judged as the vehicle that in time period Δ t, surpasses control vehicle;
Step 60104, the vehicle that surpasses control vehicle is counted the quilt that the draws control vehicle number of overtaking other vehicles;
Wherein, t
ARepresent that described control vehicle arrives the time when detecting website A, t
BRepresent that described control vehicle arrives the time when detecting website B, Δ t represents the time period and the Δ t=t that add up
B-t
A
6. detect and data processing method according to the described a kind of overall speed based on PDA of arbitrary claim in the claim 1～5, it is characterized in that: the parameter set unit of described PDA is touch-screen.
7. detect and data processing method according to the described a kind of overall speed based on PDA of arbitrary claim in the claim 1～5, it is characterized in that: data telecommunication line described in the step 5 is the usb data communication line.
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| CN103745601B (en) * | 2014-01-08 | 2015-09-30 | 西安电子科技大学 | Over-speed vehicles place lane detection method |
| CN108470453B (en) * | 2018-03-16 | 2021-01-01 | 长安大学 | Vehicle straight-going speed calculation method |
| CN109523791B (en) * | 2018-10-31 | 2021-10-26 | 武汉烽火众智数字技术有限责任公司 | Early warning analysis method and device for retained vehicle |
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| US8626418B2 (en) * | 2005-12-15 | 2014-01-07 | International Business Machines Corporation | Method and system for monitoring speed of a vehicle |
| KR100947291B1 (en) * | 2009-11-23 | 2010-03-12 | 주식회사 동해종합기술공사 | Traffic equipment with compensation apparatus for waving |
| CN102314769B (en) * | 2010-07-07 | 2013-09-11 | 交通运输部公路科学研究所 | Intelligent safety early-warning control method for merging area of entrance ramp of expressway |
| CN102136196A (en) * | 2011-03-10 | 2011-07-27 | 北京大学深圳研究生院 | Vehicle velocity measurement method based on image characteristics |
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| CN106803346B (en) * | 2015-04-24 | 2021-02-05 | 西安航空学院 | Mountain area highway road test signal detection system and data processing method |
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