CN114067459A - Motor vehicle safety performance test system - Google Patents
Motor vehicle safety performance test system Download PDFInfo
- Publication number
- CN114067459A CN114067459A CN202111060924.7A CN202111060924A CN114067459A CN 114067459 A CN114067459 A CN 114067459A CN 202111060924 A CN202111060924 A CN 202111060924A CN 114067459 A CN114067459 A CN 114067459A
- Authority
- CN
- China
- Prior art keywords
- module
- data
- mobile station
- vehicle
- tested
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a motor vehicle safety performance testing system which comprises a differential reference station, a mobile station, a brake trigger, a data processing terminal and a portable monitoring terminal, wherein the data processing terminal comprises a performance testing module, a data processing module, a first communication module, a first configuration module and a data storage module. The motor vehicle safety performance testing system obtains the reference station carrier phase observation information through the reference station, obtains the mobile station carrier phase observation information and the azimuth angle information through the mobile station, and obtains the braking trigger signal of the vehicle to be tested through the braking trigger, and the data processing terminal can collect, process and store the data, so that various safety performance tests of the vehicle are realized, the motor vehicle safety performance tests are more intelligent, and the efficiency of the motor vehicle safety performance tests is improved.
Description
Technical Field
The invention relates to the technical field of automobile performance testing, in particular to a safety performance testing system for a motor vehicle.
Background
The motor vehicle safety performance test mainly comprises an acceleration and maximum speed test, a braking performance test, a steering performance test, a linear deviation test and the like. The existing test system can only be used for testing single performance, and the test system has low measurement precision and low intelligent degree.
Disclosure of Invention
The invention aims to provide a safety performance testing system of a motor vehicle, so that the safety performance testing of the motor vehicle is more intelligent, and the safety performance testing efficiency of the motor vehicle is improved.
To achieve the above object, a safety performance testing system for a motor vehicle includes: the system comprises a differential reference station, a mobile station, a brake trigger, a data processing terminal and a portable monitoring terminal, wherein the differential reference station is erected on an open point of a test field and used for acquiring reference station carrier phase observation information in real time and sending the reference station carrier phase observation information to the mobile station in a wireless mode; the mobile station is arranged on a vehicle to be tested and used for acquiring mobile station carrier phase observation information and azimuth angle information of the vehicle to be tested in real time and calculating the position, the speed and the posture of the vehicle to be tested by combining the reference station carrier phase observation information; the brake trigger is used for acquiring a brake trigger signal on a brake pedal and sending the brake trigger signal to the mobile station;
the data processing terminal comprises a performance testing module, a data processing module, a first communication module, a first configuration module and a data storage module, wherein the performance testing module is used for generating a performance testing instruction, the data processing module is used for processing the position, the speed and the posture of the vehicle to be tested, which are sent by the mobile station, so as to obtain a performance testing result, the data storage module is used for storing the performance testing result so as to be used for data offline analysis, the first configuration module is used for setting communication parameters of the first communication module, and the first communication module sends the performance testing instruction to the mobile station and receives the position, the speed and the posture of the vehicle to be tested, which are sent by the mobile station in a message form;
the data processing module comprises a steering radius testing unit and a deflection amount testing unit, wherein the steering radius testing unit is used for determining a steering circular arc track curve of the vehicle to be tested according to the position, the speed and the posture of the vehicle to be tested, dividing the steering circular arc track curve into a plurality of intervals, selecting a plurality of position point sets from the plurality of intervals, each position point set consists of 3 position points, obtaining a plurality of fitting circles by utilizing a steering radius fitting algorithm according to the position point sets, obtaining the circle center coordinates and the radius of the fitting circles, and then determining the minimum steering circle and the minimum steering radius of the vehicle to be tested from the fitting circles according to the saturation and the fitting degree of the fitting circles to serve as the steering radius testing result of the vehicle to be tested; the deflection amount testing unit is used for selecting test starting point data and test end point data from the position, the speed and the posture of the vehicle to be tested according to the brake trigger signal and calculating the brake deflection amount of the vehicle to be tested according to the test starting point data and the test end point data;
the portable monitoring terminal is communicated with the mobile station through a serial port, and receives the performance test instruction sent by the mobile station and the position, the speed and the posture of the vehicle to be tested so as to prompt a tester to perform performance test.
Preferably, the performance test command comprises a speed performance test command, a braking performance test command, a steering performance test command and a straight-line deviation amount test command.
Preferably, the data processing module includes a data analysis unit and a data calculation unit, the data analysis unit is configured to analyze the position, the speed, and the posture of the vehicle to be tested, which are sent by the mobile station in a message form, and the data calculation unit is configured to calculate the position, the speed, and the posture of the vehicle to be tested to obtain a performance test result.
Preferably, the data processing terminal further includes a first display module, configured to display the performance test result through different interfaces, where the test result includes a table diagram, a graph, a list diagram, and a track diagram.
Preferably, the first configuration module stores and loads communication parameters through a configuration file, and the format of the configuration file is a universal INI format.
Preferably, the data storage module adopts an open-source SQLITE database, and a data table of the SQLITE database comprises time, position, speed, acceleration, distance, attitude, rotating speed, gear, brake state, star collection number and straight line driving state.
Preferably, the mobile station includes: the system comprises a data fusion processing module, a second configuration module and a second communication module, wherein the data fusion processing module is used for fusion processing the reference station carrier phase observation information, the mobile station carrier phase observation information and the azimuth angle information to obtain the position, the speed and the posture of the vehicle to be detected, the fusion processed data, the engine speed, the gear and the brake trigger signal of the vehicle to be detected are packaged together and then are respectively sent to the data processing terminal and the portable monitoring terminal through the second communication module, and the second configuration module is used for setting the communication parameters of the second communication module.
Preferably, the second communication module comprises a wireless communication unit, a serial communication unit, a CAN bus unit and an I/O acquisition unit, the mobile station is communicated with the data processing terminal through the wireless communication unit, the mobile station is communicated with the portable monitoring terminal through the serial communication unit, the mobile station receives the engine speed and the gear of the vehicle to be detected through the CAN bus unit, and the mobile station receives the braking trigger signal of the braking trigger through the I/O acquisition unit.
Preferably, the portable monitoring terminal comprises a second display module and a reminding module, the second display module is used for displaying the current motion parameters and state indication of the vehicle to be detected, and the reminding module is used for reminding key information or key operation.
Preferably, the reminding module comprises a light reminding and/or a sound reminding.
The invention has the following advantages:
the motor vehicle safety performance test system comprises a differential reference station, a mobile station, a brake trigger, a data processing terminal and a portable monitoring terminal, is simple in structure and convenient to install, acquires carrier phase observation information of the reference station through the reference station, acquires carrier phase observation information and azimuth angle information of the mobile station through the mobile station and acquires a brake trigger signal of a vehicle to be tested through the brake trigger, and the data processing terminal can acquire, process and store the data to realize various safety performance tests of the vehicle, so that the motor vehicle safety performance test is more intelligent, and the efficiency of the motor vehicle safety performance test is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
FIG. 1 is a schematic diagram illustrating a safety testing system for a vehicle engine according to an exemplary embodiment;
FIG. 2 is a block diagram illustrating a data processing terminal of a vehicle safety testing system according to an exemplary embodiment;
FIG. 3 is a logic diagram illustrating operation of a data processing terminal of a vehicle safety testing system in accordance with an exemplary embodiment;
FIG. 4 is an interface schematic diagram of a data processing terminal of a vehicle safety testing system according to an exemplary embodiment;
FIG. 5 is a block diagram illustrating a mobile station of a vehicle safety testing system in accordance with an exemplary embodiment;
FIG. 6 is a logic diagram illustrating operation of a mobile station of a vehicle safety testing system in accordance with an exemplary embodiment;
fig. 7 is a block diagram illustrating a portable monitoring terminal of a safety performance testing system of a vehicle machine according to an exemplary embodiment;
FIG. 8 is a logic diagram illustrating operation of a portable monitoring terminal of a vehicle safety testing system in accordance with an exemplary embodiment;
fig. 9 is an interface schematic diagram of a portable monitoring terminal of a motor vehicle safety performance testing system according to an exemplary embodiment.
Description of reference numerals:
1-a differential reference station;
2-a mobile station;
21-a data fusion processing module; 22-a second configuration module; 23-a second communication module;
3-a brake trigger;
4-a data processing terminal; 41-performance testing module; 42-a data processing module;
43-a first communication module; 44-a first configuration module; 45-a data storage module;
46-a first display module; 47-a prompt module;
5-a portable monitoring terminal; 51-a second display module; 52-a reminder module;
53-data analysis module; 54-a third communication module; 55-a third configuration module;
6-satellite group.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below in connection with specific embodiments, but it should be understood by those skilled in the art that the embodiments described below are only for illustrating the present invention and should not be construed as limiting the scope of the present invention. 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.
Preferred embodiments of the present invention will be described in detail with reference to the following examples. It is to be understood that the following examples are given for illustrative purposes only and are not intended to limit the scope of the present invention. Various modifications and substitutions may be made by those skilled in the art without departing from the spirit and scope of the invention, and all such modifications and substitutions are intended to be within the scope of the claims.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
The invention is further described with reference to the following figures and examples:
to achieve the above object, referring to fig. 1, an embodiment of the present invention provides a safety performance testing system for a motor vehicle, including: the system comprises a differential reference station 1, a mobile station 2, a brake trigger 3, a data processing terminal 4 and a portable monitoring terminal 5, wherein the differential reference station 1 is erected on an open point of a test field and used for acquiring reference station carrier phase observation information in real time and sending the reference station carrier phase observation information to the mobile station 2 in a wireless mode; the mobile station 2 is arranged on the vehicle to be tested and used for acquiring the carrier phase observation information of the mobile station and the azimuth angle information of the vehicle to be tested in real time and calculating the position, the speed and the posture of the vehicle to be tested by combining the carrier phase observation information of the reference station; the brake trigger 3 is used for acquiring a brake trigger signal on a brake pedal and sending the brake trigger signal to the mobile station 2;
referring to fig. 2, the data processing terminal 4 includes a performance testing module 41, a data processing module 42, a first communication module 43, a first configuration module 44, and a data storage module 45, where the performance testing module 41 is configured to generate a performance testing instruction, the data processing module 42 is configured to process a position, a speed, and an attitude of a vehicle to be tested, which are sent by a mobile station, to obtain a performance testing result, the data storage module 45 is configured to store the performance testing result for data offline analysis, the first configuration module 44 is configured to set a communication parameter of the first communication module 43, the first communication module 43 sends the performance testing instruction to the mobile station 2, and receives the position, the speed, and the attitude of the vehicle to be tested, which are sent by the mobile station 2 in a message form;
the data processing module 42 comprises a steering radius test unit and a yaw rate test unit, wherein the steering radius test unit is used for determining a steering circular arc track curve of a vehicle to be tested according to the position, speed and posture of the vehicle to be tested, dividing the steering circular arc track curve into a plurality of intervals, selecting a plurality of position point sets from the plurality of intervals, each position point set consists of 3 position points, obtaining a plurality of fitting circles by utilizing a steering radius fitting algorithm according to the position point sets, obtaining the center coordinates and the radius of the fitting circles, and then determining the minimum steering circle and the minimum steering radius of the vehicle to be tested from the fitting circles according to the saturation and the fitting degree of the fitting circles to be used as the steering radius test result of the vehicle to be tested; the deviation amount testing unit is used for selecting test starting point data and test end point data from the position, the speed and the posture of the vehicle to be tested according to the brake trigger signal and calculating the brake deviation amount of the vehicle to be tested according to the test starting point data and the test end point data;
the portable monitoring terminal 5 is in serial port communication with the mobile station 2, and the portable monitoring terminal 5 receives the performance test instruction sent by the mobile station 2 and the position, speed and posture of the vehicle to be tested so as to prompt a tester to perform performance test.
It should be noted that, the obtaining of the steering circular arc trajectory curve of the vehicle to be tested by the steering radius test unit includes: selecting a test starting point; determining azimuth data and position data from the position, the speed and the attitude of the vehicle to be tested, and searching data points adjacent to the azimuth value of the test starting point from the azimuth data to serve as a test terminal point; and determining a steering circular arc track curve according to the azimuth angle data and the position data between the test starting point and the test ending point.
The steering radius test unit divides a steering circular arc track curve into a plurality of intervals, a plurality of position point sets are selected from the intervals, and each position point set comprises 3 position points: equally dividing the position data between the test starting point and the test end point into 8 intervals; selecting a data point from the vicinity of the middle point of each interval to obtain 8 data points; and selecting 8 position point sets from 8 data points by adopting an interval selection method.
In addition, the steering radius test unit performs correction fitting on track points forming a steering circular arc track curve by using a least square fitting algorithm.
It should be noted that the calculating, by the offset amount testing unit, the braking offset amount of the vehicle to be tested according to the test starting point data and the test ending point data includes:
respectively obtaining test starting points H0And test endpoint H1Position coordinates (X)0,Y0)、(X1,Y1) Angle alpha to course0，α1；
Calculating the braking deviation amount n of the vehicle:
n＝√(X1 2-X0 2)2+(Y1 2-Y0 2)2×sin(α1-α0)
it should be noted that, in this embodiment, the data processing terminal adopts a modular design, and mainly includes a first configuration module, a first communication module, a data processing module, a data storage module, a performance testing module, and the like. The first communication module mainly comprises the steps of communication initialization, data receiving and data sending, and basic operation of communication is guaranteed. A first communication module in the data processing terminal comprises a serial port communication unit, the serial port communication unit comprises a serial port opening function, a serial port closing function, a serial port sending data function and a serial port receiving data thread, initialization is carried out through communication parameters loaded by a first configuration module, the serial port opening function is automatically executed after initialization, the serial port is opened, and meanwhile the serial port receiving data thread is started to wait for the arrival of information messages of the mobile station.
The motor vehicle safety performance testing system comprises the differential reference station, the mobile station, the brake trigger, the data processing terminal and the portable monitoring terminal, is simple in structure and convenient to install, acquires carrier phase observation information of the reference station through the reference station, acquires carrier phase observation information and azimuth angle information of the mobile station through the mobile station and acquires a brake trigger signal of a vehicle to be tested through the brake trigger, and the data processing terminal can acquire, process and store the data, so that various safety performance tests of the vehicle can be realized, the motor vehicle safety performance tests are more intelligent, and the efficiency of the motor vehicle safety performance tests is improved.
According to the above scheme, further, the performance test instruction of the embodiment of the present invention includes a speed performance test instruction, a braking performance test instruction, a steering performance test instruction, and a straight-line deviation amount test instruction. The performance testing module in the embodiment mainly realizes acceleration performance testing, maximum speed performance testing, steering performance testing and linear deviation testing, wherein the acceleration and maximum speed performance testing mainly realizes testing of performances such as maximum acceleration, acceleration time, acceleration distance, maximum speed and the like of each gear in an acceleration process, the braking performance testing mainly realizes testing of performances such as braking distance, braking time, average braking acceleration, braking deviation and the like in a braking process at each speed, the steering performance testing mainly realizes displaying of a track at any position on equipment in a steering process and calculating of a steering radius, and the linear deviation performance testing mainly realizes testing of transverse deviation in a linear driving state.
According to the above scheme, further referring to fig. 2, the data processing module 42 according to the embodiment of the present invention includes a data parsing unit 421 and a data calculating unit 422, where the data parsing unit 421 is configured to parse the position, speed, and posture of the vehicle to be tested, which are sent by the mobile station in the form of a message, and the data calculating unit 422 is configured to calculate the position, speed, and posture of the vehicle to be tested, so as to obtain a performance test result. In the embodiment, the data processing module mainly comprises data analysis and data calculation, after the serial port receiving data thread receives the mobile station information message, the message is firstly analyzed according to the data message format to obtain all parameter information of the mobile station, then all the parameter information is sent to the display module to be displayed in the forms of a table chart, a curve chart, a list chart, a track chart and the like, meanwhile, certain parameter information is calculated according to an algorithm and a formula to obtain data required by performance test, and after the performance test is completed, the test result is sent to the display module to be displayed.
According to the above scheme, further referring to fig. 2, the data processing terminal 4 according to the embodiment of the present invention further includes a first display module 46, configured to display performance test results through different interfaces, where the test results include a table diagram, a graph diagram, a list diagram, and a track diagram. In this embodiment, the first display module is mainly used for displaying real-time data, historical data and performance test data, the display mode includes a graph, a table graph, a track graph and the like, the display module includes a plurality of interfaces, and the interfaces mainly include a summary information interface, a current test equipment historical data interface, a test equipment real-time data interface, an acceleration performance and maximum speed performance test interface, a brake performance test interface, a steering performance test interface and a linear deflection performance test interface, different interfaces are displayed according to user operation switching, and different display contents of the different interfaces are displayed differently according to requirements.
According to the above scheme, further, as shown in fig. 2, the first configuration module 44 in the embodiment of the present invention stores and loads the communication parameters through the configuration file, where the format of the configuration file is a general INI format. It should be noted that the communication parameters of the communication module stored in the configuration file in this embodiment mainly include a serial port number, a baud rate, a data bit, a check bit, a stop bit, and the like.
According to the above scheme, further, as shown in fig. 2, the data storage module 45 in the embodiment of the present invention adopts an open source squilite database, and a data table of the squilite database includes time, position, speed, acceleration, distance, posture, rotation speed, gear, brake state, star collection number, and straight-line driving state.
According to the above scheme, further, as shown in fig. 2, the data processing terminal 4 of the embodiment of the present invention further includes a prompt module 47, where the prompt module is a voice prompt and is used for prompting key information or key operations. It should be noted that the sound prompt module implements an audio object, and the warning sound prompt is implemented by audio playing. Certainly, the prompt module in this embodiment may also be implemented by a display list for text prompt, and is used for memo display.
Referring to fig. 3, after the data processing terminal is started, the first configuration module, the first communication module, the data storage module, the first display module, the voice prompt module, and the performance test module are initialized; then loading communication parameters from a local configuration file through a first configuration module, initializing the first communication module through the communication parameters, and operating a data processing module to receive data; after the data storage module is initialized, an SQLITE database object is realized, and the storage and the loading of data are waited to be executed; after the first display module is initialized, all display interfaces including various curve graphs, track graphs, lists and the like can be created; after the sound prompt module is initialized, an audio object can be realized, and the sound prompt module waits for the broadcast of the sound; after the performance testing module is initialized, the display and data of each performance testing unit are initialized, and a user is waited to execute a certain performance test. After the data processing module receives the mobile station information, the message is analyzed, corresponding data calculation is completed according to the current performance test state, meanwhile, the mobile station information and the test data are stored in a database file and displayed on a corresponding interface, and if relevant key information appears, sound prompt is performed through an audio object. When a user performs offline data analysis, historical data is loaded from the database and displayed, and the user can perform the analysis. When a user triggers an acceleration and maximum speed performance test, a braking performance test, a steering performance test and a linear deviation performance test, the mobile station enters a test mode, and the mobile station information is calculated and analyzed and tested in real time.
After the data processing terminal is started, firstly, a summary information interface is opened, the summary information interface of the data processing terminal is shown in fig. 4, and the top left corner displays local time, the name of current testing equipment and the current testing state; some key information or key operations generated in the running process are also displayed in the lower left corner list so as to be convenient for subsequent viewing of memorandum; the position information of each part of the mobile station vehicle is mainly displayed in the middle list, and whether each part is displayed or not and the displayed color can be independently set; the right side curve chart mainly displays the real-time curves of the position, the speed, the acceleration and the course of the mobile station, whether each item is displayed or not can be set independently through checking, the display color of each item can also be set, and the zooming display of the curve chart can also be realized through the selection of a mouse frame. The acceleration performance and maximum speed performance test, the braking performance test, the steering performance test and the linear deviation performance test can be respectively prepared, started and ended through the test menu.
According to the above scheme, further, as shown in fig. 5, the mobile station 2 according to the embodiment of the present invention includes: the system comprises a data fusion processing module 21, a second configuration module 22 and a second communication module 23, wherein the data fusion processing module 21 is used for fusion processing of reference station carrier phase observation information, mobile station carrier phase observation information and azimuth information to obtain the position, speed and attitude of a vehicle to be detected, the fusion processed data and the engine speed, gear and brake trigger signal of the vehicle to be detected are packaged together and then are respectively sent to the data processing terminal 4 and the portable monitoring terminal 5 through the second communication module 23, and the second configuration module 22 is used for setting communication parameters of the second communication module 23.
According to the above scheme, further, the second communication module 23 of the mobile station in the embodiment of the present invention includes a wireless communication unit, a serial communication unit, a CAN bus unit, and an I/O acquisition unit, the mobile station communicates with the data processing terminal through the wireless communication unit, the mobile station communicates with the portable monitoring terminal through the serial communication unit, the mobile station receives the engine speed and the gear of the vehicle to be tested through the CAN bus unit, and the mobile station receives the braking trigger signal of the braking trigger through the I/O acquisition unit.
Referring to fig. 6, after the mobile station is started, the second configuration module, the second communication module, and the data fusion processing module are initialized; then loading communication parameters from the Flash through a second configuration module, initializing all communication units through the communication parameters, and operating data sending and data receiving of the corresponding communication units; after the data fusion processing module is initialized, a data analysis unit, a data fusion unit and a data packing unit are initialized, after GNSS data (namely mobile station carrier phase observation information) of the satellite group 6 is received, the GNSS data and SINS data (namely differential reference station carrier phase observation information) are fused through the data fusion module, the fused data are sent to the data packing unit, after a brake trigger signal, a vehicle gear, an engine rotating speed and brake state information are received, the received information is sent to the data packing unit, and the data packing unit packs the information of all the mobile stations in real time and then broadcasts the information outwards.
According to the above scheme, further referring to fig. 6, the portable monitoring terminal 5 according to the embodiment of the present invention includes a second display module 51 and a reminding module 52, where the second display module 51 is configured to display the motion parameters and the status indication of the current vehicle to be detected, and the reminding module 52 is configured to remind key information or key operations. In this embodiment, the second display module is mainly used to display real-time data of the device, and the display mode includes a form chart, an indicator light, and the like.
Referring to the display interface shown in fig. 9, the main interface displays the running speed, the satellite number and the like of the vehicle, the status indicator light displays whether the vehicle is in a straight running state and can be braked, the color of the status indicator light changes in real time according to the status, for example, when the vehicle is in the straight running state and can be braked, the status indicator light displays green, otherwise, the status indicator light displays red. The display content can be switched by the operation of the previous page, the next page and the like in the interface.
According to the above scheme, further, as shown in fig. 4, the reminding module 52 of the portable monitoring terminal 5 according to the embodiment of the present invention includes a light reminding and/or a sound reminding. In the embodiment, the reminding module can comprise an indicator light reminding function and a sound reminding function, wherein the indicator light reminding function is realized by a state indicator light, and the display color is changed according to the state; the voice reminding realizes an audio object, the broadcasting reminding of the text voice can be realized by converting the text into the voice, and the warning voice reminding can also be realized by audio playing.
According to the above scheme, further, referring to fig. 7, the portable monitoring terminal 5 according to the embodiment of the present invention further includes a third configuration module 55, a third communication module 54, and a data analysis module 53.
In this embodiment, the third configuration module mainly stores and loads communication parameters of the communication module, so as to ensure that the third communication module can normally communicate with the mobile station. The third communication module mainly comprises the steps of communication initialization, data receiving and data sending, and basic operation of communication is guaranteed. The data analysis module mainly comprises data analysis and analyzes according to the data message format to obtain the data to be displayed.
The data processing terminal, the mobile station and the portable monitoring terminal of the motor vehicle safety performance testing system of the embodiment of the invention are all in modular design, have function expansion, can adapt to Windows7 and above operating systems, and have the advantages of reasonable interface layout, friendly interaction, simple operation, convenient maintenance and reliable work.
Claims (10)
1. A motor vehicle safety performance testing system, comprising: the system comprises a differential reference station, a mobile station, a brake trigger, a data processing terminal and a portable monitoring terminal, wherein the differential reference station is erected on an open point of a test field and used for acquiring reference station carrier phase observation information in real time and sending the reference station carrier phase observation information to the mobile station in a wireless mode; the mobile station is arranged on a vehicle to be tested and used for acquiring mobile station carrier phase observation information and azimuth angle information of the vehicle to be tested in real time and calculating the position, the speed and the posture of the vehicle to be tested by combining the reference station carrier phase observation information; the brake trigger is used for acquiring a brake trigger signal on a brake pedal and sending the brake trigger signal to the mobile station;
the data processing terminal comprises a performance testing module, a data processing module, a first communication module, a first configuration module and a data storage module, wherein the performance testing module is used for generating a performance testing instruction, the data processing module is used for processing the position, the speed and the posture of the vehicle to be tested, which are sent by the mobile station, so as to obtain a performance testing result, the data storage module is used for storing the performance testing result so as to be used for data offline analysis, the first configuration module is used for setting communication parameters of the first communication module, and the first communication module sends the performance testing instruction to the mobile station and receives the position, the speed and the posture of the vehicle to be tested, which are sent by the mobile station in a message form;
the data processing module comprises a steering radius testing unit and a deflection amount testing unit, wherein the steering radius testing unit is used for determining a steering circular arc track curve of the vehicle to be tested according to the position, the speed and the posture of the vehicle to be tested, dividing the steering circular arc track curve into a plurality of intervals, selecting a plurality of position point sets from the plurality of intervals, each position point set consists of 3 position points, obtaining a plurality of fitting circles by utilizing a steering radius fitting algorithm according to the position point sets, obtaining the circle center coordinates and the radius of the fitting circles, and then determining the minimum steering circle and the minimum steering radius of the vehicle to be tested from the fitting circles according to the saturation and the fitting degree of the fitting circles to serve as the steering radius testing result of the vehicle to be tested; the deflection amount testing unit is used for selecting test starting point data and test end point data from the position, the speed and the posture of the vehicle to be tested according to the brake trigger signal and calculating the brake deflection amount of the vehicle to be tested according to the test starting point data and the test end point data;
the portable monitoring terminal is communicated with the mobile station through a serial port, and receives the performance test instruction sent by the mobile station and the position, the speed and the posture of the vehicle to be tested so as to prompt a tester to perform performance test.
2. The vehicle safety performance testing system of claim 1, wherein the performance testing commands comprise a speed performance testing command, a brake performance testing command, a steering performance testing command, and a straight-line-bias testing command.
3. The system according to claim 2, wherein the data processing module includes a data parsing unit and a data calculating unit, the data parsing unit is configured to parse the position, speed and posture of the vehicle to be tested sent by the mobile station in a message form, and the data calculating unit is configured to calculate the position, speed and posture of the vehicle to be tested to obtain the performance test result.
4. The motor vehicle safety performance testing system of claim 3, wherein the data processing terminal further comprises a first display module for displaying the performance testing results through different interfaces, and the testing results comprise a table chart, a graph, a list chart and a track chart.
5. The system for testing safety performance of motor vehicles according to claim 4, wherein the first configuration module stores and loads communication parameters through a configuration file, and the format of the configuration file is a universal INI format.
6. The motor vehicle safety performance testing system of claim 5, wherein the data storage module adopts an open-source SQLITE database, and the data table of the SQLITE database comprises time, position, speed, acceleration, distance, attitude, rotation speed, gear, brake state, star count and straight driving state.
7. The motor vehicle safety performance testing system of claim 1, wherein the mobile station comprises: the system comprises a data fusion processing module, a second configuration module and a second communication module, wherein the data fusion processing module is used for fusion processing the reference station carrier phase observation information, the mobile station carrier phase observation information and the azimuth angle information to obtain the position, the speed and the posture of the vehicle to be detected, the fusion processed data, the engine speed, the gear and the brake trigger signal of the vehicle to be detected are packaged together and then are respectively sent to the data processing terminal and the portable monitoring terminal through the second communication module, and the second configuration module is used for setting the communication parameters of the second communication module.
8. The motor vehicle safety performance testing system of claim 7, wherein the second communication module comprises a wireless communication unit, a serial communication unit, a CAN bus unit and an I/O acquisition unit, the mobile station communicates with the data processing terminal through the wireless communication unit, the mobile station communicates with the portable monitoring terminal through the serial communication unit, the mobile station receives the engine speed and the gear of the vehicle to be tested through the CAN bus unit, and the mobile station receives the brake trigger signal of the brake trigger through the I/O acquisition unit.
9. The motor vehicle safety performance testing system of claim 1, wherein the portable monitoring terminal comprises a second display module and a reminding module, the second display module is used for displaying the current motion parameters and state indications of the vehicle to be tested, and the reminding module is used for reminding key information or key operations.
10. The vehicle safety performance testing system of claim 9, wherein the alert module comprises a light alert and/or an audible alert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111060924.7A CN114067459B (en) | 2021-09-10 | 2021-09-10 | Motor vehicle safety performance test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111060924.7A CN114067459B (en) | 2021-09-10 | 2021-09-10 | Motor vehicle safety performance test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114067459A true CN114067459A (en) | 2022-02-18 |
| CN114067459B CN114067459B (en) | 2023-08-01 |
Family
ID=80233616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111060924.7A Active CN114067459B (en) | 2021-09-10 | 2021-09-10 | Motor vehicle safety performance test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114067459B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2784468A1 (en) * | 2013-03-28 | 2014-10-01 | Jtekt Corporation | Test system |
| CN104865077A (en) * | 2015-04-23 | 2015-08-26 | 武汉科技大学 | Vehicle driving deviation measuring method and system based on satellite real-time difference signals |
| CN206114004U (en) * | 2016-10-10 | 2017-04-19 | 交通运输部公路科学研究所 | Synchronous sampling and device of handling vehicle operation information and operating information |
| CN107255566A (en) * | 2017-06-08 | 2017-10-17 | 武汉科技大学 | A kind of vehicle carried type vehicle driving running deviation detection means and detection method |
| CN107782564A (en) * | 2017-10-30 | 2018-03-09 | 青岛慧拓智能机器有限公司 | A kind of automatic driving vehicle evaluation system and method |
| KR101845339B1 (en) * | 2016-09-29 | 2018-04-06 | 한국철도기술연구원 | Analysis system and method for driving safety of the railway vehicles through a real time curve detection |
| CN110303999A (en) * | 2019-06-29 | 2019-10-08 | 清华大学苏州汽车研究院（吴江） | A kind of pilotless automobile test monitor system |
| CN111157252A (en) * | 2020-01-03 | 2020-05-15 | 中国船舶重工集团公司第七0七研究所 | Test system and test method suitable for testing vehicle running performance |
| CN111795832A (en) * | 2020-06-02 | 2020-10-20 | 福瑞泰克智能***有限公司 | Intelligent driving vehicle testing method, device and equipment |
| CN112284773A (en) * | 2020-10-31 | 2021-01-29 | 的卢技术有限公司 | System and method for measuring minimum turning radius of automobile |
| CN112776820A (en) * | 2021-01-26 | 2021-05-11 | 武汉理工大学 | Driver indicating system and method for intelligent automobile test |
| CN112816226A (en) * | 2021-01-06 | 2021-05-18 | 北京智能车联产业创新中心有限公司 | Automatic driving test system and method based on controllable traffic flow |
-
2021
- 2021-09-10 CN CN202111060924.7A patent/CN114067459B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2784468A1 (en) * | 2013-03-28 | 2014-10-01 | Jtekt Corporation | Test system |
| CN104865077A (en) * | 2015-04-23 | 2015-08-26 | 武汉科技大学 | Vehicle driving deviation measuring method and system based on satellite real-time difference signals |
| KR101845339B1 (en) * | 2016-09-29 | 2018-04-06 | 한국철도기술연구원 | Analysis system and method for driving safety of the railway vehicles through a real time curve detection |
| CN206114004U (en) * | 2016-10-10 | 2017-04-19 | 交通运输部公路科学研究所 | Synchronous sampling and device of handling vehicle operation information and operating information |
| CN107255566A (en) * | 2017-06-08 | 2017-10-17 | 武汉科技大学 | A kind of vehicle carried type vehicle driving running deviation detection means and detection method |
| CN107782564A (en) * | 2017-10-30 | 2018-03-09 | 青岛慧拓智能机器有限公司 | A kind of automatic driving vehicle evaluation system and method |
| CN110303999A (en) * | 2019-06-29 | 2019-10-08 | 清华大学苏州汽车研究院（吴江） | A kind of pilotless automobile test monitor system |
| CN111157252A (en) * | 2020-01-03 | 2020-05-15 | 中国船舶重工集团公司第七0七研究所 | Test system and test method suitable for testing vehicle running performance |
| CN111795832A (en) * | 2020-06-02 | 2020-10-20 | 福瑞泰克智能***有限公司 | Intelligent driving vehicle testing method, device and equipment |
| CN112284773A (en) * | 2020-10-31 | 2021-01-29 | 的卢技术有限公司 | System and method for measuring minimum turning radius of automobile |
| CN112816226A (en) * | 2021-01-06 | 2021-05-18 | 北京智能车联产业创新中心有限公司 | Automatic driving test system and method based on controllable traffic flow |
| CN112776820A (en) * | 2021-01-26 | 2021-05-11 | 武汉理工大学 | Driver indicating system and method for intelligent automobile test |
Non-Patent Citations (1)
| Title |
|---|
| 周兴林;吕文莎;伍洋;尹皓晖;: "二维激光扫描车辆行驶跑偏量测量研究", 汽车技术, no. 10, pages 11 - 14 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114067459B (en) | 2023-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106183812B (en) | Information display method, control equipment and vehicle | |
| US9047777B2 (en) | Method and system for providing information about parking space through communication between vehicles | |
| US8583367B2 (en) | System and method for displaying a route based on a vehicle state | |
| CN206194137U (en) | Traffic signal lamp state reminder system | |
| CN104102978A (en) | Vehicle team management method and system | |
| CN105513389A (en) | Method and device for augmented reality | |
| CN113566843B (en) | Navigation switching method and vehicle-mounted terminal | |
| CN103625507B (en) | High Speed Railway Trains is followed the trail of close to method for early warning and system thereof | |
| CN104471350A (en) | In-vehicle traffic information notification device | |
| CN102868970A (en) | System and method for actively identifying and communicating with vehicles | |
| CN104487805A (en) | Creation of a geofence | |
| CN107433921A (en) | A kind of travel condition of vehicle monitoring method, device and system | |
| CN108170124A (en) | A kind of test script automatic creation system and method based on row control project data | |
| CN111137303A (en) | Automatic driving vehicle auxiliary system and server | |
| CN114067459A (en) | Motor vehicle safety performance test system | |
| CN117119516B (en) | Method and equipment for testing consistency of whole vehicle data in Internet of vehicles | |
| CN105180958A (en) | Navigation method, device and system | |
| CN110667651A (en) | Train autonomous operation management system based on high-precision position | |
| CN105466441A (en) | Vehicle navigation device and navigation method | |
| CN206114004U (en) | Synchronous sampling and device of handling vehicle operation information and operating information | |
| CN110626517B (en) | Intelligent device, intelligent system and automatic data acquisition method for aircraft gear | |
| CN107908356B (en) | Information resident method and device based on intelligent equipment | |
| CN110850838A (en) | Vehicle fault reminding method and system | |
| CN113935641A (en) | Bus stop prompting method and device, computer equipment and storage medium | |
| CN114394137A (en) | Simulation integration test platform and test method for vehicle-mounted signal system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |