CN106803345B - Data processing method of transverse acceleration signal detection system of test vehicle on mountain highway - Google Patents
Data processing method of transverse acceleration signal detection system of test vehicle on mountain highway Download PDFInfo
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Abstract
The invention discloses a data processing method of a transverse acceleration signal detection system of a test vehicle on a mountain highway, which comprises the following steps: loading linear pile number data of a road section to be measured and elevation data corresponding to the pile number into a vehicle-mounted industrial personal computer; inputting the initial pile number of the measured road section through a vehicle-mounted industrial personal computer, and simultaneously reading elevation data in a GPS receiver and inputting the elevation data into the vehicle-mounted industrial personal computer; the road test vehicle transverse acceleration signal collector, the counter and the GPS receiver work and automatically input related data into the vehicle-mounted industrial personal computer; inputting the terminal pile number of the measured road section through a vehicle-mounted industrial personal computer, and simultaneously reading elevation data in a GPS receiver and inputting the elevation data into the vehicle-mounted industrial personal computer; and the vehicle-mounted industrial personal computer calls an internal integrated data analysis processing module to read data in a disk of the vehicle-mounted industrial personal computer and analyzes and processes the read data to obtain an analysis processing result. The invention has high data processing efficiency, effectively reduces human errors, obtains high data accuracy and saves manpower and material resources.
Description
This application is a divisional application, the application number of the original application: 2015101995952, filing date: 2015-04-24, patent name of invention: a data processing method of a mountain area highway road test signal detection system.
Technical Field
The invention relates to the technical field of data acquisition and processing, in particular to a data processing method of a transverse acceleration signal detection system of a vehicle for a mountain highway road test.
Background
Along with the rapid and comprehensive development of economy, the construction of highways in China obtains good achievements. China is very rich in geographic environment, and in order to accelerate the connection of traffic roads in different areas, China builds a lot of mountain area expressways. The mountainous area highway road has complex environment and multiple accidents, researchers in our country often need to perform some road tests to collect relevant data, and in the research of road test data, such as road safety evaluation, vehicle speed characteristics, adaptive cruise based on road alignment and the like, the researchers often need to perform collection tests on signals of vehicle speed, acceleration, vehicle transverse acceleration and the like during the driving of vehicles on the road so as to obtain signals corresponding to road line shape pile numbers of the vehicles in the driving road, namely, the researchers need to know each point signal of the vehicles corresponding to the pile numbers in the road alignment. The relevant signals of the vehicles at a certain stake mark position of the road line shape have very important significance.
The existing road test acquisition mode can acquire related vehicle signals and longitude, latitude and elevation corresponding to the signals, but is difficult to correspond acquired position information such as the longitude and the latitude corresponding to the related signals to road linear pile numbers, and the item of the road pile numbers is not displayed in data output items. In the prior art, after data are collected, manual processing is carried out, and collected position information such as longitude and latitude is manually corresponding to a linear pile number of a relevant road. In general, the transverse acceleration signals of the road test vehicle collected in the prior art are all corresponding to the collected signals by using longitude and latitude information, and the road pile number information is rarely used for the correspondence.
The mountain expressway is obviously different from the plain expressway, has some remarkable characteristics, and has a large height difference, such as the expressway in west safety to Han, wherein the height difference reaches more than 1 thousand meters. For such mountain expressways with large elevation difference, the road pile number corresponding to the elevation can be conveniently obtained only by knowing the elevation of a certain point on the road.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a data processing method of a transverse acceleration signal detection system of a test vehicle on a highway in a mountain area, which starts from the corresponding relation between elevation and road pile number, can conveniently and quickly correspond the collected transverse acceleration signal data of the test vehicle on the highway and the road pile number data one by one, and can well solve the problem that when the transverse acceleration signal of the test vehicle on the highway in the mountain area is collected, the data is discontinuous in the later data processing caused by the loss of a GPS signal. The intelligent data acquisition and processing system is reasonable in design, convenient to use and operate, high in intelligent degree, high in data acquisition and processing efficiency, high in data accuracy, capable of saving manpower and material resources, strong in practicability and convenient to popularize and use.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a data processing method of a transverse acceleration signal detection system of a test vehicle on a mountain highway comprises a transverse acceleration signal collector of a test vehicle on the road, a counter, a GPS receiver and a vehicle-mounted industrial personal computer; the road test vehicle transverse acceleration signal collector, the counter and the GPS receiver are respectively in wired connection or wireless connection with the vehicle-mounted industrial personal computer through a data communication line or a wireless communication network; the road test vehicle transverse acceleration signal collector is used for collecting various required road test vehicle transverse acceleration signals, and the road test vehicle transverse acceleration signal collector can collect one signal or a plurality of signals and can be configured as required; the counter is used for counting the number of signal groups collected by the road test vehicle transverse acceleration signal collector, so that later-stage calculation is facilitated; the GPS receiver is used for receiving elevation data; the vehicle-mounted industrial personal computer is internally integrated with a data analysis processing module; the implementation steps are as follows:
loading linear pile number data of a road section to be measured into a magnetic disc of a vehicle-mounted industrial personal computer before measurement, wherein the linear pile number data of the road section comprises elevation data of the measured road section and pile number data corresponding to the elevation;
secondly, during measurement, a parameter setting unit of the vehicle-mounted industrial personal computer calls a data initialization interface corresponding to a data initialization module, reads initial elevation data in the GPS receiver at the same time, inputs initial pile number data of a detected road section and the initial elevation data in the GPS receiver through the data initialization interface, and the data initialization module stores the input initial pile number data and the initial elevation data in the GPS receiver in a data storage disk corresponding to the vehicle-mounted industrial personal computer;
step three, in the measurement, a road test vehicle transverse acceleration signal collector, a GPS receiver and a counter synchronously work, and the road test vehicle transverse acceleration signal collector inputs the measured road test vehicle transverse acceleration signal data into a corresponding data storage disk of a vehicle-mounted industrial personal computer; the GPS receiver synchronously acquires position information and inputs the acquired elevation data into a data storage disk corresponding to the vehicle-mounted industrial personal computer; the counter starts to count synchronously, counts the number of the transverse acceleration signal data of the road test vehicle and inputs the counted data into a data storage disk corresponding to the industrial personal computer; after the vehicle enters the tunnel, although the GPS receiver loses signals, the road test vehicle transverse acceleration signal collector and the counter can continue to collect data, and the counter continues to keep statistics on the road test vehicle transverse acceleration signal data;
fourthly, when the measurement is finished, calling out a corresponding data interface through a parameter setting unit of the vehicle-mounted industrial personal computer, reading elevation data in the GPS receiver at the same time, and inputting pile number data at a detection finishing termination road section and the elevation data in the GPS receiver through the data interface;
and fifthly, reading data in a magnetic disk of the vehicle-mounted industrial personal computer through a data analysis processing module integrated in the vehicle-mounted industrial personal computer, and analyzing and processing the read data to obtain an analysis processing result.
The data processing method of the transverse acceleration signal detection system of the test vehicle on the mountain highway is characterized in that: reading data in a disk of the vehicle-mounted industrial personal computer through a data analysis processing module integrated in the vehicle-mounted industrial personal computer and analyzing and processing the read data, wherein the analysis processing process comprises the following steps:
step 501, the data analysis processing module arranges the vehicle speed acquisition signals in the vehicle-mounted industrial personal computer disk, the elevation signals in the GPS receiver and the counting data counted by the counter in sequence according to the acquisition sequence, wherein the arrangement mode is N rows and M columns; n is the counting number of the counters, and M is M rows of transverse acceleration signals of the road test vehicles correspondingly counted by the N;
step 502, the data analysis processing module calls an initial measurement section pile number A and an end point measurement pile number B which are arranged in a magnetic disc of the vehicle-mounted industrial personal computer, converts the pile numbers into distances, obtains a distance a corresponding to the pile number A and a distance B corresponding to the pile number B after conversion, and the conversion formula is as follows:
a=A×1000；
b=B×1000；
step 503, the data analysis processing module calculates the acquisition distance c, and the calculation formula is: c = a-b;
step 504, the data analysis processing module calls the statistical data N of the counter stored in the disk of the vehicle-mounted industrial personal computer, and calculates the speed acquisition distance increment △1The calculation formula is △1=c/N；
Step 505, the data analysis processing module calls a speed acquisition distance increment △1And calculates pile number accumulation coefficient △2The calculation formula is △2= △1×0.001；
Step 506, the data analysis processing module calls the initial measurement road section pile number A stored in the vehicle-mounted industrial personal computer disk and the number N of the road test vehicle transverse acceleration signal acquisition signals counted by the counter, and the acquired road test vehicle transverse acceleration signal data and the pile number are corresponded, and the calculation method is as follows: the road section pile number corresponding to the transverse acceleration signals of the 1 st group of M rows of road test vehicles counted by the counter is A; the number of road section piles corresponding to the transverse acceleration signal of the 2 nd group of M-row road test vehicles is A2=A+△2(ii) a The road section pile number counted by the counter and corresponding to the 3 rd group M row road test vehicle transverse acceleration signal is A3=A+2×△2(ii) a The number of the road section pile corresponding to the 4 th group of M-row road test vehicle transverse acceleration signals counted by the counter is A4=A+3×△2Sequentially calculating, wherein the number of the road section pile corresponding to the N group of M rows of road test vehicle transverse acceleration signals counted by the counter is AN=A+(N-1)×△2；
Step 507, the data analysis processing module analyzes the data from 2 to A calculated in step 506NThe N groups of pile number data are sequentially arranged according to the sequence of calculation, and are transversely accelerated with the M rows of road test vehicles in the step 501The degree signals are corresponded.
The data processing method of the transverse acceleration signal detection system of the test vehicle on the mountain highway is characterized in that: the calculation method of step 506 may be replaced with: the data analysis processing module calls an end point measurement road section pile number B stored in a magnetic disc of the vehicle-mounted industrial personal computer and the number N of the road test vehicle transverse acceleration signal acquisition signals counted by the counter, and the acquired road test vehicle transverse acceleration signal data correspond to the pile number, and the calculation method comprises the following steps: the road section pile number corresponding to the 1 st group of M-row road test vehicle transverse acceleration signals counted by the counter is A1=B-（N-1）×△2(ii) a The road section pile number corresponding to the 2 nd group M row road test vehicle transverse acceleration signal counted by the counter is A2=B-（N-2）×△2(ii) a The road section pile number counted by the counter and corresponding to the 3 rd group M row road test vehicle transverse acceleration signal is A3=B-（N-3）×△2Sequentially calculating, wherein the number of road section piles corresponding to the N-3 th group of M rows of road test vehicle transverse acceleration signals counted by the counter is AN-3=B-3×△2(ii) a The road section pile number corresponding to the N-2 group M row road test vehicle transverse acceleration signal counted by the counter is AN-2=B-2×△2(ii) a The road section pile number corresponding to the N-1 group M row road test vehicle transverse acceleration signal counted by the counter is AN-1=B-1×△2(ii) a The road section pile number corresponding to the N group of M rows of road test vehicle transverse acceleration signals counted by the counter is AN=B。
The data processing method of the transverse acceleration signal detection system of the test vehicle on the mountain highway is characterized in that: the road test vehicle transverse acceleration signal collector can collect one or more test signals, including vehicle speed signals, vehicle longitudinal acceleration signals, vehicle transverse acceleration signals, vehicle yaw rate signals, clutch pedal opening degree signals and other vehicle related signals and vehicle position test position signals.
The data processing method of the transverse acceleration signal detection system of the test vehicle on the mountain highway is characterized in that: the method can be used for the mountain expressway and other highways with larger road surface gradient and fall.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention starts from the corresponding relation between the elevation and the road pile number, and can conveniently and quickly correspond the acquired transverse acceleration signal data of the road test vehicle and the road pile number data one by one. The method can directly obtain the road test vehicle transverse acceleration signals marked by the road pile numbers, namely can know the pile number of each group of road test vehicle transverse acceleration signals corresponding to the measured road test vehicle transverse acceleration signals, and brings a plurality of benefits. However, in the prior art, only the longitude and latitude information measured by the measured transverse acceleration signal of the road test vehicle is given, and the stake number corresponding to the transverse acceleration signal of the measured road test vehicle cannot be directly obtained.
2. In the prior art, after the transverse acceleration signals of the road test vehicle and the corresponding longitude and latitude are measured, the transverse acceleration signals and the corresponding longitude and latitude are processed manually, but the required result can be directly obtained by the method.
3. When a vehicle enters a tunnel or other road sections without GPS signals temporarily, the position data cannot be obtained, but the method adopted by the invention only needs to know the pile numbers and corresponding elevations before and after the measured road section and can calculate by applying an algorithm integrated in the vehicle, particularly after the vehicle enters the tunnel, a transverse acceleration signal collector and a counter of a road test vehicle still work, and a data analysis processing module and an algorithm integrated in a vehicle-mounted industrial personal computer can enable the collected transverse acceleration signal of the road test vehicle to be in one-to-one correspondence with the pile numbers of the road after the test.
4. The invention can realize paperless operation, has high data acquisition and processing efficiency, effectively reduces human errors, has high accuracy of the recorded, stored and analyzed data, and saves manpower and material resources.
5. The invention has reasonable design, convenient realization and low realization cost.
6. The invention is not only suitable for mountain expressway, but also suitable for other highways.
7. The road test vehicle transverse acceleration signal collector can collect one or more test signals, including vehicle speed signals, vehicle longitudinal acceleration signals, vehicle transverse acceleration signals, vehicle yaw rate signals, clutch pedal opening degree signals and other vehicle related signals and vehicle position test signals.
8. The connection mode of the system can adopt a data communication line or a wireless communication network for wired connection or wireless connection, and the system is flexible and convenient to use and has good expandability.
9. The invention has good adaptability without GPS signals.
In conclusion, the intelligent data acquisition and processing system is reasonable in design, convenient to use and operate, high in intelligent degree, high in data acquisition and processing efficiency, high in data accuracy, capable of saving manpower and material resources, convenient to implement, low in implementation cost, high in practicability, capable of effectively overcoming the defects and shortcomings of low data acquisition efficiency, poor data accuracy, time and labor waste and the like in the prior art, good in using effect and convenient to popularize and use.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A data processing method of a transverse acceleration signal detection system of a test vehicle on a mountain highway comprises a transverse acceleration signal collector of a test vehicle on the road, a counter, a GPS receiver and a vehicle-mounted industrial personal computer; the road test vehicle transverse acceleration signal collector, the counter and the GPS receiver are respectively in wired connection or wireless connection with the vehicle-mounted industrial personal computer through a data communication line or a wireless communication network; the road test vehicle transverse acceleration signal collector is used for collecting various required road test vehicle transverse acceleration signals, and the road test vehicle transverse acceleration signal collector can collect one signal or a plurality of signals and can be configured as required; the counter is used for counting the number of signal groups collected by the road test vehicle transverse acceleration signal collector, so that later-stage calculation is facilitated; the GPS receiver is used for receiving elevation data; the vehicle-mounted industrial personal computer is internally integrated with a data analysis processing module.
The data acquisition frequency set by the road test vehicle transverse acceleration signal acquisition unit is larger, the number of the acquired data signal groups is larger, the number of the data acquisition counted by the counter is larger, and the number of the road pile corresponding to the acquired signals is larger.
As shown in fig. 1, a data processing method of a lateral acceleration signal detection system of a vehicle for a mountain expressway road test comprises the following steps:
loading linear pile number data of a road section to be measured into a magnetic disc of a vehicle-mounted industrial personal computer before measurement, wherein the linear pile number data of the road section comprises elevation data of the measured road section and pile number data corresponding to the elevation;
secondly, during measurement, a parameter setting unit of the vehicle-mounted industrial personal computer calls a data initialization interface corresponding to a data initialization module, reads initial elevation data in the GPS receiver at the same time, inputs initial pile number data of a detected road section and the initial elevation data in the GPS receiver through the data initialization interface, and the data initialization module stores the input initial pile number data and the initial elevation data in the GPS receiver in a data storage disk corresponding to the vehicle-mounted industrial personal computer;
during specific implementation, the initial pile number of the detection road section is input at a position corresponding to a data input interface of the vehicle-mounted industrial personal computer, the initial elevation in the GPS receiver of the current initial detection road section is read, and the current elevation is input at the data input interface of the vehicle-mounted industrial personal computer.
Step three, in the measurement, a road test vehicle transverse acceleration signal collector, a GPS receiver and a counter synchronously work, and the road test vehicle transverse acceleration signal collector inputs the measured road test vehicle transverse acceleration signal data into a corresponding data storage disk of a vehicle-mounted industrial personal computer; the GPS receiver synchronously acquires position information and inputs the acquired elevation data into a data storage disk corresponding to the vehicle-mounted industrial personal computer; the counter starts to count synchronously, counts the number of the transverse acceleration signal data of the road test vehicle and inputs the counted data into a data storage disk corresponding to the industrial personal computer; after the vehicle enters the tunnel, although the GPS receiver loses signals, the road test vehicle transverse acceleration signal collector and the counter can continue to collect data, and the counter continues to keep statistics on the road test vehicle transverse acceleration signal data;
fourthly, when the measurement is finished, calling out a corresponding data interface through a parameter setting unit of the vehicle-mounted industrial personal computer, reading elevation data in the GPS receiver at the same time, and inputting pile number data at a detection finishing termination road section and the elevation data in the GPS receiver through the data interface;
during specific implementation, the elevation in the GPS receiver of the measurement terminal detection section is read and input into the vehicle-mounted industrial personal computer, and meanwhile, the pile number of the measurement terminal section is input into the vehicle-mounted industrial personal computer.
And fifthly, reading data in a magnetic disk of the vehicle-mounted industrial personal computer through a data analysis processing module integrated in the vehicle-mounted industrial personal computer, and analyzing and processing the read data to obtain an analysis processing result.
In this embodiment, in the fifth step, the data in the disk of the vehicle-mounted industrial personal computer is read by the data analysis processing module integrated therein, and the read data is analyzed and processed, where the analysis processing process includes the following steps:
step 501, the data analysis processing module arranges the vehicle speed acquisition signals in the vehicle-mounted industrial personal computer disk, the elevation signals in the GPS receiver and the counting data counted by the counter in sequence according to the acquisition sequence, wherein the arrangement mode is N rows and M columns; n is the counting number of the counters, and M is M rows of transverse acceleration signals of the road test vehicles correspondingly counted by the N;
in specific implementation, a road test vehicle lateral acceleration signal collector collects two signals (a vehicle speed signal and a vehicle longitudinal acceleration signal) for illustration, and if the road test vehicle lateral acceleration signal collector collects 10 groups of vehicle speed signals and vehicle longitudinal acceleration signals, a counter counts 10 times, that is, N =10 and M =2, at this time, the data are arranged in 10 rows and 2 columns, the first column is a vehicle speed signal, and the second column is a vehicle longitudinal acceleration signal.
Step 502, the data analysis processing module calls an initial measurement section pile number A and an end point measurement pile number B which are arranged in a magnetic disc of the vehicle-mounted industrial personal computer, converts the pile numbers into distances, obtains a distance a corresponding to the pile number A and a distance B corresponding to the pile number B after conversion, and the conversion formula is as follows:
a=A×1000；
b=B×1000；
in the concrete implementation, if the initial measurement road section pile number A is K1137+500, the converted distance a is 1137500; the converted distance B of the end point measuring pile number B of K1135+500 is 1135500.
Step 503, the data analysis processing module calculates the acquisition distance c, and the calculation formula is: c = a-b;
in the specific implementation, according to the above example, the distance a converted from the initial measurement road pile number a of K1137+500 is 1137500; and the converted distance B of the end point measuring pile number B of K1135+500 is 1135500, so that c = a-B =1137500-1135500= 2000.
Step 504, the data analysis processing module calls the statistical data N of the counter stored in the disk of the vehicle-mounted industrial personal computer, and calculates the speed acquisition distance increment △1The calculation formula is △1=c/N；
In particular, △ is implemented according to the above example1=c/N=2000/10=200。
Step 505, the data analysis processing module calls a speed acquisition distance increment △1And calculates pile number accumulation coefficient △2The calculation formula is △2= △1×0.001；
In particular, △ is implemented according to the above example2= △1×0.001=200×0.001=0.2。
Step 506, the data analysis processing module calls the initial measurement road section pile number A stored in the vehicle-mounted industrial personal computer disk and the number N of the road test vehicle transverse acceleration signal acquisition signals counted by the counter, and the acquired road test vehicle transverse acceleration signal data and the pile number are corresponded, and the calculation method is as follows: the road section pile number corresponding to the transverse acceleration signals of the 1 st group of M rows of road test vehicles counted by the counter is A; the number of road section piles corresponding to the transverse acceleration signal of the 2 nd group of M-row road test vehicles is A2=A+△2(ii) a The road section pile number counted by the counter and corresponding to the 3 rd group M row road test vehicle transverse acceleration signal is A3=A+2×△2(ii) a The number of the road section pile corresponding to the 4 th group of M-row road test vehicle transverse acceleration signals counted by the counter is A4=A+3×△2Sequentially calculating, wherein the number of the road section pile corresponding to the N group of M rows of road test vehicle transverse acceleration signals counted by the counter is AN=A+(N-1)×△2；
In the concrete implementation, according to the above example, the number of the road pile corresponding to the 1 st group of M-row road test vehicle lateral acceleration signals counted by the counter is K1137+ 500; the road section pile number corresponding to the 2 nd group M row road test vehicle transverse acceleration signal counted by the counter is A2=1137.500+△2=1137.500+0.2=1137.700, that is, the number of the road stub corresponding to the 2 nd group M-column road test vehicle lateral acceleration signal counted by the counter is K1137+700, and calculation can be performed in turn.
Step 507, the data analysis processing module analyzes the data from 2 to A calculated in step 506NAnd the N groups of pile number data are sequentially arranged according to the sequence of calculation and correspond to the transverse acceleration signals of the M rows of road test vehicles in the step 501.
In practice, the calculation method of step 506 may be replaced by: the data analysis processing module calls an end point measurement road section pile number B stored in a magnetic disc of the vehicle-mounted industrial personal computer and the number N of the road test vehicle transverse acceleration signal acquisition signals counted by the counter, and carries out the acquisition of the road test vehicle transverse acceleration signal data and the pile numberCorrespondingly, the calculation method comprises the following steps: the road section pile number corresponding to the 1 st group of M-row road test vehicle transverse acceleration signals counted by the counter is A1=B-（N-1）×△2(ii) a The road section pile number corresponding to the 2 nd group M row road test vehicle transverse acceleration signal counted by the counter is A2=B-（N-2）×△2(ii) a The road section pile number counted by the counter and corresponding to the 3 rd group M row road test vehicle transverse acceleration signal is A3=B-（N-3）×△2Sequentially calculating, wherein the number of road section piles corresponding to the N-3 th group of M rows of road test vehicle transverse acceleration signals counted by the counter is AN-3=B-3×△2(ii) a The road section pile number corresponding to the N-2 group M row road test vehicle transverse acceleration signal counted by the counter is AN-2=B-2×△2(ii) a The road section pile number corresponding to the N-1 group M row road test vehicle transverse acceleration signal counted by the counter is AN-1=B-1×△2(ii) a The road section pile number corresponding to the N group of M rows of road test vehicle transverse acceleration signals counted by the counter is AN=B。
The method can be used for the mountain expressway and other highways with larger road surface gradient and fall.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (1)
1. A data processing method of a transverse acceleration signal detection system of a test vehicle on a mountain highway is characterized in that the system comprises a transverse acceleration signal collector of a test vehicle on the road, a counter, a GPS receiver and a vehicle-mounted industrial personal computer; the road test vehicle transverse acceleration signal collector, the counter and the GPS receiver are respectively in wired connection or wireless connection with the vehicle-mounted industrial personal computer through a data communication line or a wireless communication network; the road test vehicle transverse acceleration signal collector is used for collecting a road test vehicle transverse acceleration signal; the counter is used for counting the number of signal groups collected by the road test vehicle transverse acceleration signal collector, so that later-stage calculation is facilitated; the GPS receiver is used for receiving elevation data; the vehicle-mounted industrial personal computer is internally integrated with a data analysis processing module; the implementation steps are as follows:
loading linear pile number data of a road section to be measured into a magnetic disc of a vehicle-mounted industrial personal computer before measurement, wherein the linear pile number data of the road section comprises elevation data of the measured road section and pile number data corresponding to the elevation;
secondly, during measurement, a parameter setting unit of the vehicle-mounted industrial personal computer calls a data initialization interface corresponding to a data initialization module, reads initial elevation data in the GPS receiver at the same time, inputs initial pile number data of a detected road section and the initial elevation data in the GPS receiver through the data initialization interface, and the data initialization module stores the input initial pile number data and the initial elevation data in the GPS receiver in a data storage disk corresponding to the vehicle-mounted industrial personal computer;
step three, in the measurement, a road test vehicle transverse acceleration signal collector, a GPS receiver and a counter synchronously work, and the road test vehicle transverse acceleration signal collector inputs the measured road test vehicle transverse acceleration signal data into a corresponding data storage disk of a vehicle-mounted industrial personal computer; the GPS receiver synchronously acquires position information and inputs the acquired elevation data into a data storage disk corresponding to the vehicle-mounted industrial personal computer; the counter starts to count synchronously, counts the number of the transverse acceleration signal data of the road test vehicle and inputs the counted data into a data storage disk corresponding to the industrial personal computer; after the vehicle enters the tunnel, although the GPS receiver loses signals, the road test vehicle transverse acceleration signal collector and the counter can continue to collect data, and the counter continues to keep statistics on the road test vehicle transverse acceleration signal data;
fourthly, when the measurement is finished, calling out a corresponding data interface through a parameter setting unit of the vehicle-mounted industrial personal computer, reading elevation data in the GPS receiver at the same time, and inputting pile number data at a detection finishing termination road section and the elevation data in the GPS receiver through the data interface;
reading data in a magnetic disk of the vehicle-mounted industrial personal computer through a data analysis processing module integrated in the vehicle-mounted industrial personal computer, and analyzing and processing the read data to obtain an analysis processing result;
reading data in a disk of the vehicle-mounted industrial personal computer through a data analysis processing module integrated in the vehicle-mounted industrial personal computer and analyzing and processing the read data, wherein the analysis processing process comprises the following steps:
step 501, the data analysis processing module arranges the vehicle speed acquisition signals in the vehicle-mounted industrial personal computer disk, the elevation signals in the GPS receiver and the counting data counted by the counter in sequence according to the acquisition sequence, wherein the arrangement mode is N rows and M columns; n is the counting number of the counters, and M is M rows of transverse acceleration signals of the road test vehicles correspondingly counted by the N;
step 502, the data analysis processing module calls an initial measurement section pile number A and an end point measurement pile number B which are arranged in a magnetic disc of the vehicle-mounted industrial personal computer, converts the pile numbers into distances, obtains a distance a corresponding to the pile number A and a distance B corresponding to the pile number B after conversion, and the conversion formula is as follows:
a=A×1000；
b=B×1000；
step 503, the data analysis processing module calculates the acquisition distance c, and the calculation formula is: c = a-b;
step 504, the data analysis processing module calls the statistical data N of the counter stored in the disk of the vehicle-mounted industrial personal computer, and calculates the speed acquisition distance increment △1The calculation formula is △1=c/N；
Step 505, the data analysis processing module calls a speed acquisition distance increment △1And calculates pile number accumulation coefficient △2The calculation formula is △2= △1×0.001；
Step 506, the data analysis processing module calls an initial measurement road section stored in a disk of a vehicle-mounted industrial personal computerPile number A and the number N of the collected signals of the transverse acceleration signals of the road test vehicle counted by the counter correspond to the collected data of the transverse acceleration signals of the road test vehicle, and the calculation method comprises the following steps: the road section pile number corresponding to the transverse acceleration signals of the 1 st group of M rows of road test vehicles counted by the counter is A; the number of road section piles corresponding to the transverse acceleration signal of the 2 nd group of M-row road test vehicles is A2=A+△2(ii) a The road section pile number counted by the counter and corresponding to the 3 rd group M row road test vehicle transverse acceleration signal is A3=A+2×△2(ii) a The number of the road section pile corresponding to the 4 th group of M-row road test vehicle transverse acceleration signals counted by the counter is A4=A+3×△2Sequentially calculating, wherein the number of the road section pile corresponding to the N group of M rows of road test vehicle transverse acceleration signals counted by the counter is AN=A+(N-1)×△2；
Step 507, the data analysis processing module analyzes the 1 st group to the A th group calculated in the step 506NAnd (3) arranging the pile number data of N groups in sequence according to the sequence of calculation, and corresponding to the transverse acceleration signals of the N groups of M rows of road test vehicles in the step 501.
Priority Applications (1)
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| CN201610749455.2A Expired - Fee Related CN106228811B (en) | 2015-04-24 | 2015-04-24 | A kind of data processing method of mountainous area highway actual road test signal detection system |
| CN201710064042.5A Expired - Fee Related CN106846800B (en) | 2015-04-24 | 2015-04-24 | Data processing method of longitudinal acceleration signal detection system of test vehicle on mountain highway |
| CN201710064056.7A Expired - Fee Related CN106803346B (en) | 2015-04-24 | 2015-04-24 | Mountain area highway road test signal detection system and data processing method |
| CN201510199595.2A Expired - Fee Related CN104778838B (en) | 2015-04-24 | 2015-04-24 | A kind of data processing method of mountainous area highway actual road test signal detection system |
| CN201710064037.4A Expired - Fee Related CN106803345B (en) | 2015-04-24 | 2015-04-24 | Data processing method of transverse acceleration signal detection system of test vehicle on mountain highway |
| CN201710064028.5A Expired - Fee Related CN106781505B (en) | 2015-04-24 | 2015-04-24 | Data processing method of mountain area highway road test vehicle speed signal detection system |
| CN201610694514.0A Expired - Fee Related CN106297286B (en) | 2015-04-24 | 2015-04-24 | A kind of mountainous area highway actual road test signal detection system |
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| CN201610749455.2A Expired - Fee Related CN106228811B (en) | 2015-04-24 | 2015-04-24 | A kind of data processing method of mountainous area highway actual road test signal detection system |
| CN201710064042.5A Expired - Fee Related CN106846800B (en) | 2015-04-24 | 2015-04-24 | Data processing method of longitudinal acceleration signal detection system of test vehicle on mountain highway |
| CN201710064056.7A Expired - Fee Related CN106803346B (en) | 2015-04-24 | 2015-04-24 | Mountain area highway road test signal detection system and data processing method |
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| CN105070088B (en) * | 2015-08-05 | 2017-11-28 | 四川隧唐科技股份有限公司 | GPS docks highway mileage the system of stake number and its implementation |
| CN108320515B (en) * | 2018-04-04 | 2021-07-02 | 公安部交通管理科学研究所 | Automatic matching and checking method and system for road network of traffic accident site |
| CN108733346A (en) * | 2018-04-13 | 2018-11-02 | 云南黑软科技有限公司 | Successively decrease cumulative aperture method |
| CN109947020B (en) * | 2019-03-27 | 2021-06-04 | 吉林大学 | User-configurable vehicle acceleration data acquisition method |
| CN114446047A (en) * | 2021-12-28 | 2022-05-06 | 阿波罗智联(北京)科技有限公司 | Traffic index data processing method and device and electronic equipment |
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Also Published As
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| CN106297286B (en) | 2019-01-18 |
| CN106228811B (en) | 2018-11-30 |
| CN106683407B (en) | 2020-08-14 |
| CN106781505A (en) | 2017-05-31 |
| CN106297286A (en) | 2017-01-04 |
| CN106228811A (en) | 2016-12-14 |
| CN106846800B (en) | 2020-08-14 |
| CN106803346A (en) | 2017-06-06 |
| CN106803345A (en) | 2017-06-06 |
| CN106781505B (en) | 2020-08-14 |
| CN106683407A (en) | 2017-05-17 |
| CN106846800A (en) | 2017-06-13 |
| CN104778838B (en) | 2017-03-15 |
| CN104778838A (en) | 2015-07-15 |
| CN106803346B (en) | 2021-02-05 |
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