CN110793482A - Vehicle sample data acquisition system for collecting data conforming to normal distribution - Google Patents
Vehicle sample data acquisition system for collecting data conforming to normal distribution Download PDFInfo
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- CN110793482A CN110793482A CN201911105804.7A CN201911105804A CN110793482A CN 110793482 A CN110793482 A CN 110793482A CN 201911105804 A CN201911105804 A CN 201911105804A CN 110793482 A CN110793482 A CN 110793482A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
The invention discloses a vehicle sample data acquisition system for collecting vehicle sample data conforming to normal distribution, and relates to the technical field of vehicle information acquisition. The invention comprises a control system, a data acquisition unit and a classification unit; the control system performs information interaction with the classification unit; the classification unit and the data acquisition unit carry out information interaction; the classification unit is used for counting, sorting and classifying the vehicle speed information; the classification unit comprises an identification module; the recognition module extracts the characteristics in the video information and checks the characteristics with the judged vehicle type. The invention has the advantages that through the functions of the control system, the data acquisition unit and the classification unit, the vehicle sample data information is automatically acquired, the vehicle speeds of all passing vehicles are calculated at fixed points, and the total amount of the vehicle samples which are subjected to normal distribution can be finally obtained through statistics, arrangement, analysis, elimination, judgment and other processing.
Description
Technical Field
The invention belongs to the technical field of vehicle information acquisition, and particularly relates to a vehicle sample data acquisition system for collecting vehicle sample data conforming to normal distribution.
Background
When vehicle information data information is collected at present, the required sample size is large, when the data information needing the total amount of the samples obeys normal distribution, the required sample size may be larger, and the calculation amount is also large; if the acquisition of the vehicle sample data is carried out manually, and the workload for judging whether the sample is in accordance with the normal distribution is very large, the acquisition is more complex and the energy consumption is higher. When the vehicle sample data which obeys normal distribution needs to be counted, the workload and the energy consumption are very large.
According to the vehicle sample data collection system which collects the vehicle sample data conforming to the normal distribution, through the action of the control system, the data collection unit and the classification unit, the sample data is firstly subjected to statistical arrangement, classification and calculation, whether the normal distribution is obeyed or not is judged, and if the normal distribution is obeyed, the test is finished; if the data is not compliant, the control system can continuously receive new sample data information and delete old sample data information until the sample data information is compliant with normal distribution, and then the test is finished. The method has the advantages that the method can automatically collect vehicle sample data information, calculate the speed of all passing vehicles at fixed points, perform statistics, sorting, analysis, elimination, judgment and other processing, and finally obtain the total vehicle sample amount which is subject to normal distribution.
Disclosure of Invention
The invention aims to provide a vehicle sample data collecting system which collects vehicle sample data conforming to normal distribution, and solves the problems of large workload and great energy consumption when vehicle sample data conforming to normal distribution needs to be counted through the functions of a control system, a data collecting unit and a classifying unit.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a vehicle sample data acquisition system for collecting vehicle sample data conforming to normal distribution, which comprises a control system, a data acquisition unit and a classification unit;
the control system is connected with the classification unit; the control system performs information interaction with the classification unit; the classification unit and the data acquisition unit carry out information interaction through a communication module; the data acquisition unit comprises a vehicle speed acquisition module, a vehicle type size acquisition module and a vehicle running video acquisition module; the vehicle speed acquisition module outputs vehicle speed information to the classification unit; the vehicle type size acquisition module outputs vehicle type size information to the classification unit; the vehicle type size information comprises data information of vehicle body length, vehicle width and vehicle height; the vehicle running video acquisition module is a camera; the camera outputs video information to the classification unit; the classification unit is used for counting, sorting and classifying the vehicle speed information; the classification unit is used for counting, sorting, analyzing, judging and classifying the vehicle type size information; the classification unit comprises an identification module; the identification module extracts the characteristics in the video information and checks the characteristics with the judged vehicle type; the control system receives statistical sample information of the classification unit; the control system sets the maximum sample size to be A; the control system sets the minimum sample size to B, where A > B.
Further, the control system receives each statistical sample information of the classification units one by one; when the total amount of samples received by the control system reaches the maximum sample amount A, deleting the oldest sample information when the control system receives a new sample information, then performing statistical sorting on the whole total amount of samples, and verifying whether the total amount of samples obeys normal distribution; the control system sets parameter values for a maximum sample size a and a minimum sample size B.
Further, the total amount of samples received by the control system ranges from A to B; the total number of samples of the control system is set to any integer between A and B.
Further, the vehicle speed acquisition module is a vehicle speed detector.
Further, the vehicle model size acquisition module comprises a vehicle height measuring instrument, a vehicle length measuring instrument and a vehicle width measuring instrument.
Furthermore, the classification unit is used for counting, sorting and analyzing all sizes in the vehicle model size information, the classification unit is used for carrying out information interaction with the database through the communication module, and analyzing and judging the size type of the vehicle according to the size information of the database; and the classification unit classifies the judged vehicle type and transmits data to the control system.
Further, the control system judges vehicle type proportion information in the received statistical sample information, and if the vehicle type proportion is not in the data in the effective range, the data is removed; the control system adjusts a parameter of the effective range.
Further, the control system judges whether the total amount of the new samples obeys normal distribution in real time.
Further, when the control system judges that the total amount of the sample obeys normal distribution, the control system controls the data acquisition unit to be in a closed state, the acquisition is stopped, and the test is finished.
The invention has the following beneficial effects:
according to the invention, through the functions of a control system, a data acquisition unit and a classification unit, sample data is subjected to statistical arrangement, classification and calculation, whether normal distribution is obeyed or not is judged, and if yes, the test is finished; if the data is not compliant, the control system can continuously receive new sample data information and delete old sample data information until the sample data information is compliant with normal distribution, and then the test is finished. The method has the advantages that the method can automatically collect vehicle sample data information, calculate the speed of all passing vehicles at fixed points, perform statistics, sorting, analysis, elimination, judgment and other processing, and finally obtain the total vehicle sample amount which is subject to normal distribution.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a block diagram of a vehicle sample data collection system for collecting vehicle sample data conforming to normal distribution according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention is a system for collecting vehicle sample data conforming to normal distribution, including a control system, a data collection unit and a classification unit;
the control system is connected with the classification unit; the control system performs information interaction with the classification unit; the classification unit and the data acquisition unit carry out information interaction through a communication module; the data acquisition unit comprises a vehicle speed acquisition module, a vehicle type size acquisition module and a vehicle running video acquisition module; the vehicle speed acquisition module outputs vehicle speed information to the classification unit; the vehicle type size acquisition module outputs vehicle type size information to the classification unit; the vehicle type size information comprises data information of vehicle body length, vehicle width and vehicle height; the vehicle running video acquisition module is a camera; the camera outputs video information to the classification unit; the classification unit is used for counting, sorting and classifying the vehicle speed information; the classification unit is used for counting, sorting, analyzing, judging and classifying the vehicle type size information; the classification unit comprises an identification module; the identification module extracts the characteristics in the video information and checks the characteristics with the judged vehicle type; the control system receives statistical sample information of the classification unit; the control system sets the maximum sample size to be A; the control system sets the minimum sample size to B, where A > B.
Further, the control system receives each statistical sample information of the classification units one by one; when the total amount of samples received by the control system reaches the maximum sample amount A, deleting the oldest sample information when the control system receives a new sample information, then performing statistical sorting on the whole total amount of samples, and verifying whether the total amount of samples obeys normal distribution; the control system sets parameter values for a maximum sample size a and a minimum sample size B.
Further, the total amount of samples received by the control system ranges from A to B; the total number of samples of the control system is set to any integer between A and B.
Further, the vehicle speed acquisition module is a vehicle speed detector.
Further, the vehicle model size acquisition module comprises a vehicle height measuring instrument, a vehicle length measuring instrument and a vehicle width measuring instrument.
Furthermore, the classification unit is used for counting, sorting and analyzing all sizes in the vehicle model size information, the classification unit is used for carrying out information interaction with the database through the communication module, and analyzing and judging the size type of the vehicle according to the size information of the database; and the classification unit classifies the judged vehicle type and transmits data to the control system.
Further, the control system judges vehicle type proportion information in the received statistical sample information, and if the vehicle type proportion is not in the data in the effective range, the data is removed; the control system adjusts a parameter of the effective range.
Further, the control system judges whether the total amount of the new samples obeys normal distribution in real time.
Further, when the control system judges that the total amount of the sample obeys normal distribution, the control system controls the data acquisition unit to be in a closed state, the acquisition is stopped, and the test is finished.
For example: the data collected by the vehicle sample data collection system conforming to normal distribution on the vehicle related information of a certain section is as follows:
the speed of 526 automobiles is collected in a certain section in 2018, wherein the large automobiles are 168 and the small automobiles are 358; the average speed of the large automobile is 63km/h, and the standard deviation is S1; the average speed of the small car is 87km/h, and the standard deviation is S2;
the maximum sample size a set in this example is 500; the minimum sample size B is 100; the total amount of the samples tested at this time is set as 300; the total amount of the samples is increased from 0 to 300 one by one, when the total amount of the samples reaches 300, the oldest sample in the samples is deleted every time one sample is added, and the total amount of the samples is kept to be 300;
wherein divide into in the kart: several types of cars, jeep, mini car, light bus, etc.; when the proportion of the mini car in the mini car is lower than 0.1%, removing sample data of the mini car; the proportion of its effective range can be set to [ 1%, 99% ];
when the data information of the 26 th to 325 th samples in the small automobile obeys normal distribution, the control system controls the data acquisition unit to be in a closed state, stops acquisition, finishes the test and retains the data information of the total amount of the samples.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The utility model provides a collect and accord with normal distributed vehicle sample data collection system which characterized in that: the system comprises a control system, a data acquisition unit and a classification unit;
the control system is connected with the classification unit; the control system performs information interaction with the classification unit; the classification unit and the data acquisition unit carry out information interaction through a communication module;
the data acquisition unit comprises a vehicle speed acquisition module, a vehicle type size acquisition module and a vehicle running video acquisition module; the vehicle speed acquisition module outputs vehicle speed information to the classification unit; the vehicle type size acquisition module outputs vehicle type size information to the classification unit; the vehicle type size information comprises data information of vehicle body length, vehicle width and vehicle height; the vehicle running video acquisition module is a camera; the camera outputs video information to the classification unit;
the classification unit is used for counting, sorting and classifying the vehicle speed information; the classification unit is used for counting, sorting, analyzing, judging and classifying the vehicle type size information; the classification unit comprises an identification module; the identification module extracts the characteristics in the video information and checks the characteristics with the judged vehicle type;
the control system receives statistical sample information of the classification unit; the control system sets the maximum sample size to be A; the control system sets the minimum sample size to B, where A > B.
2. The system according to claim 1, wherein the control system receives the statistical sample information of each classification unit one by one; when the total amount of samples received by the control system reaches the maximum sample amount A, deleting the oldest sample information when the control system receives a new sample information, then performing statistical sorting on the whole total amount of samples, and verifying whether the total amount of samples obeys normal distribution;
the control system sets parameter values for a maximum sample size a and a minimum sample size B.
3. The system of claim 1, wherein the total amount of samples received by the control system is in the range of a to B; the total number of samples of the control system is set to any integer between A and B.
4. The system of claim 1, wherein the vehicle speed acquisition module is a vehicle speed detector.
5. The system of claim 1, wherein the model size collecting module comprises a vehicle height measuring instrument, a vehicle length measuring instrument, and a vehicle width measuring instrument.
6. The system of claim 1, wherein the classification unit performs statistics, sorting and analysis on sizes of vehicle model size information, performs information interaction with the database through the communication module, and analyzes and judges the size type of the vehicle according to the size information of the database; and the classification unit classifies the judged vehicle type and transmits data to the control system.
7. The system of claim 1, wherein the control system determines vehicle type proportion information in the received statistical sample information, and rejects data if the vehicle type proportion is not within a valid range; the control system adjusts a parameter of the effective range.
8. The system of claim 1, wherein the control system determines in real time whether the total amount of new samples is normal distributed.
9. The system of claim 1, wherein when the control system determines that the total amount of the samples is subject to normal distribution, the control system controls the data collection unit to be in a closed state, stops collection, and ends the test.
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