CN209802669U - Vehicle reliability test data collection and analysis system based on gyroscope - Google Patents
Vehicle reliability test data collection and analysis system based on gyroscope Download PDFInfo
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- CN209802669U CN209802669U CN201821674684.3U CN201821674684U CN209802669U CN 209802669 U CN209802669 U CN 209802669U CN 201821674684 U CN201821674684 U CN 201821674684U CN 209802669 U CN209802669 U CN 209802669U
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Abstract
The utility model provides a vehicle reliability test data collection and analysis system based on a gyroscope, which comprises a vehicle-mounted experimental device and a background server, wherein the vehicle-mounted experimental device is used for collecting data, and the background server is used for processing data; the vehicle-mounted experimental device comprises a main control chip, wherein the main control chip is connected with a can communication module, a GPS positioning module, a 4G communication module, a power supply module, an EMMC data storage module, an RTC clock circuit module, a gyroscope module and a USB module. The utility model can make the data have visual effect, so that the information of the running track, the running mileage, the testing process, the vehicle condition, the road surface condition and the like can be well reflected, and all data of the road section testing process can be obtained by selecting the running track on the map; the utility model discloses all data in the vehicle test process will be by whole record and call the convenience, the fine test data of having avoided makes false problem.
Description
Technical Field
The utility model belongs to the technical field of vehicle test, especially, relate to a vehicle reliability test data collection analytic system based on gyroscope.
Background
When a vehicle reliability test is carried out on the current new energy automobile, the vehicle-mounted terminal cannot calibrate the running track of the automobile, and particularly cannot detect the bumpy condition of a road surface when the test is carried out on the bumpy road surface. In order to make the obtained test data more convincing, an experimental detection device capable of forming a test vehicle driving track is urgently needed, the track is formed, meanwhile, whether the road surface is a reinforced road surface or a high-ring road surface can be identified, the identified road surface condition is displayed on the formed driving track, the experimental process can be monitored and known more intuitively, and the obtained data is higher in credibility and stronger in convincing.
And data acquisition mainly adopts the form of plug wire when testing, and test engineer need open the automobile body and carry out the data analysis of whole car after finding vehicle terminal wiring, greatly reduced work efficiency and the accurate degree of test in addition.
In the prior art, a high-resolution GPS is widely applied to a mobile phone navigation system, an accurate and reliable walking route can be provided for a user, and the position calibration precision of the high-resolution GPS is enough to meet the requirement of automatically forming a vehicle running track in a vehicle durability test. Through a certain technology, the vehicle running track can be calibrated by using a high-resolution GPS, a running route is automatically formed on a map, and the whole process of the vehicle durability test is conveniently recorded.
The gyroscope is an electronic device widely applied to aerospace and small mobile phones and household appliances, can accurately measure the running speed and the attitude angle of an object, and plays a key role in speed measurement and orientation in a mobile phone navigation system. The level measurement of a mobile phone is also an application layer of a gyroscope.
Disclosure of Invention
In view of this, the utility model aims at providing a vehicle reliability test data collection analytic system based on gyroscope for through high resolution GPS and gyroscope to vehicle durability test's the route of traveling still the road surface situation differentiate, and with test data storage in the storage system at terminal, send test data to backend server through the 4G network simultaneously.
in order to achieve the above purpose, the technical scheme of the utility model is realized like this:
The vehicle reliability test data collection and analysis system based on the gyroscope comprises a vehicle-mounted experimental device and a background server, wherein the vehicle-mounted experimental device is used for collecting data, and the background server is used for processing the data; the vehicle-mounted experimental device comprises a main control chip, wherein the main control chip is connected with a can communication module, a GPS positioning module, a 4G communication module, a power supply module, an EMMC data storage module, an RTC clock circuit module, a gyroscope module and a USB module, the running route and the road surface condition of the vehicle durability test are calibrated through a high-resolution GPS and a gyroscope, the test data are stored in the EMMC data storage module, and meanwhile the test data are sent to a background server through the 4G communication module.
further, the CAN communication module is used for collecting data on a CAN line of the vehicle, and the data comprises vehicle condition data, battery data, instrument data, position data and gyroscope data, wherein the CAN communication module adopts a model of TJA 1043T.
Furthermore, the GPS positioning module is hung on the periphery of the main control chip through a high-speed serial port, so that the transmission rate is higher, the data is analyzed and then packaged, and the accurate position of the vehicle can be positioned in real time, wherein the model of the GPS positioning module is ATGM 336H-5N-7X.
Furthermore, the 4G communication module contains a TCP/IP communication protocol and is connected with the main control chip through a serial port, the serial port sends an AT instruction to control the 4G communication module to be connected to a specified IP and a specified port, and after the serial port is connected with the server, the main control chip sends the AT instruction to control the 4G communication module to send packed data; the command data sent by the server can also be received and sent to the main control chip through the USB, and the main control chip analyzes the data and then performs corresponding operation, wherein the model adopted by the 4G communication module is EC20_ R2.1_ U0101-A.
Further, the power supply module is used for expanding the input voltage range to 9-36V and providing 3.3V and 5V power supply voltage for each module, wherein the power supply module adopts the model of MP1584 EN.
further, the EMMC data storage module is used for storing the sent data in a txt file form and storing a log in the whole test process; the storage module is hung on the main control chip through the SDIO bus, so that the transmission rate is higher and more efficient, wherein the model adopted by the EMMC data storage module is KLM8G1 GEND-B031.
Further, the gyroscope module is connected to an I2C bus interface of the main control chip, the main control chip reads data of the gyroscope every 50ms, acceleration and inclination angle information of the vehicle can be collected, the gyroscope module is also used as one of awakening sources of the terminal, when the acceleration is too large or the inclination angle is too large, the terminal sends a warning message to the platform, and the platform sends a short message prompt to a vehicle owner, wherein the type of the gyroscope module is LSM6 DSL.
Further, the model of the main control chip is STM32F407 v.
Compared with the prior art, vehicle reliability test data collection analytic system based on gyroscope has following advantage:
The utility model discloses increased the persuasion and the data readability of vehicle durability test experimental data, the utility model discloses can make data have visual effect, make information such as orbit, mileage of traveling, test procedure, vehicle situation, road surface situation reflect well, can obtain all data of this highway section test procedure through selecting the orbit of traveling on the map; the utility model discloses all data in the vehicle test process will be by whole record and call the convenience, the fine test data of having avoided makes false problem. Moreover, the durability test is a long-time-consuming experiment, and the device can greatly improve the efficiency of the durability test of the vehicle.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural diagram of a vehicle-mounted experimental apparatus according to an embodiment of the present invention;
Fig. 2 is a functional schematic diagram of the vehicle-mounted experimental device according to the embodiment of the present invention.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the utility model provides a vehicle reliability test data collection and analysis system based on gyroscope, including on-vehicle experimental apparatus and backend server, the on-vehicle experimental apparatus is used for collecting data, backend server is used for processing data;
The vehicle-mounted experimental device comprises a can communication module, a GPS positioning module, a 4G communication module, a power supply module, an EMMC data storage module, an RTC clock circuit module, a gyroscope module and a USB module. These structures are described in detail below.
a Can communication module: the can module of the main control chip is realized together with the peripheral circuit and is used for collecting data on a can line of the new energy vehicle. The main control chip reads each frame of data on the CAN line in a terminal mode, stores the data when the CAN line is not connected with a network, and reissues the data according to a set time interval after the CAN line is connected with the network; then according to the protocol of transmitting data, some important data are extracted, and packed according to the communication protocol, and real-time data is transmitted at regular intervals.
A GPS positioning module: if the high-resolution GPS positioning module does not have high transmission speed, the significance of high precision and real-time performance is lost. In order to enable the data transmission speed to be faster, the GPS positioning module is hung on the periphery of the main control chip through the high-speed serial port, so that the transmission speed is faster, and the accurate position of the vehicle can be positioned in real time after the data is analyzed and packaged.
4G communication module: the SIM card is used for communication, and the application region range is wide. The TCP/IP communication protocol is contained and is connected with the main control chip through a serial port. The serial port sends an AT instruction to control the communication module to be connected to a specified IP and a specified port, and after the serial port is connected to the server, the main control chip sends the AT instruction to control the 4G communication module to send packed data; or receiving command data sent by the server, sending the command data to the main control chip through the USB, and carrying out corresponding operation after the main control chip analyzes the data.
A power supply module: the input voltage range is expanded to 9-36V, and power supply voltages of 3.3V, 5V and the like are provided for each module. A 5V standby battery is connected in the terminal, and when the battery is out of power, the battery is charged by the normal power of the external new energy vehicle; when the outside is not powered, the power is supplied by the internal battery; preferably using an external power source. The terminal enters a dormant state after the vehicle is flamed out for more than 1 minute, and is powered by an internal battery for 3 minutes when a main power supply is not detected, but the data reading and sending rate is reduced to once every 5 seconds to reduce power consumption. Once the vehicle is started, the test terminal is immediately awakened and normal work is recovered.
RTC clock circuit module: the vehicle-mounted terminal gives an RTC clock in real time, provides an HSE clock for the main control chip, and sends the HSE clock and the acquired data to the remote monitoring platform or stores the HSE clock and the acquired data to the EMMC, so that the data acquisition clock is consistent with the clock of the background server.
EMMC data storage module: the EMMC data storage module can be used for storing the sent data in a txt file form and storing a log in the whole test process; the storage module is hung on the main control chip through the SDIO bus, so that the transmission speed is higher and the efficiency is higher.
A gyroscope module: and the gyroscope is connected to an I2C bus interface of the main control chip, and the data of the gyroscope is read by the main control chip every 50 ms. The information such as the acceleration and the inclination angle of the vehicle can be collected and also can be used as one of the awakening sources of the terminal. When the acceleration is too large or the inclination angle is too large, the terminal sends a warning message to the platform, and the platform sends a short message prompt to the vehicle owner.
As shown in fig. 2, the functional schematic diagram of the system is shown, the experimental system has a data acquisition function, a data storage function, a data communication function, a data export function, a road condition identification function, a route formation function, an RTC clock function, and a sleep wake-up function, and the following describes each function one by one with reference to the schematic diagram:
The data acquisition function: the experimental device carries a CAN module, and CAN collect data on a CAN line of a vehicle through a CAN card, wherein the data comprises vehicle condition data, battery data, instrument data, position data, gyroscope data and the like.
Data storage function: the EMMC data storage module is adopted, data collected by the experimental device and sent data can be stored, backup is convenient, data are prevented from being lost under the condition of poor signals, and after the experiment is finished, if the phenomenon that data processed by the background server are wrong or frame loss is found, the stored data can be compared with the data and automatically integrated to ensure the integrity of the data.
Data communication function: through the 4G communication module, the data collected by each module and the data processed by the main control chip are transmitted to the background server, and the data communication function enables the data to be readable.
The data export function: the CAN bus data acquisition function, the data that each module measured CAN read out and gather the computer through the CAN bus.
road condition recognition function: mainly judge and obtain the real-time information of automobile body through the gyroscope to the road surface degree of jolting, automobile floor also can take place vibration and slope when the road surface is jolted, this will arouse automobile floor and horizontal plane contained angle to change, relative motion about automobile floor can take place with ground simultaneously, the gyroscope can read out these angle information and speed information, the data that same car gained when different road conditions were gone must be different, can judge the good or bad degree of road conditions in view of the above.
Route formation function: the real-time position of the vehicle body is calibrated through a high-resolution GPS, the position information is points, and the points are connected in sequence through a certain means after enough time so as to form a driving route of the vehicle. When the GPS signal is not received, the gyroscope module can carry out inertial navigation work, if the vehicle turns, the main control chip can read the acceleration of the vehicle turning to two sides, then the turning distance is calculated according to the time, and the running track can be formed continuously. Therefore, the two work complementarily, and no test data blind spot appears in any time period of the test process.
RTC clock function: the HSE clock is provided for the main control chip, and the GPS clock can be calibrated. Because the RTC clock may have errors when running for a long time, when the experimental device is powered on, the RTC clock and the server clock can be automatically compared and calibrated, and the time of the GPS positioning module and the experimental device is ensured to be correct and consistent with the server clock.
A sleep wake-up function: the reliability test of the vehicle has the advantages that the driving mileage is thirty thousand kilometers, the driving distance is too long, the test is carried out in stages, the experimental device is fixed on the bottom plate of the vehicle body, the test device is not switched on or off when each test stage begins to end, therefore, the dormancy awakening function is set, the test device can be awakened when the vehicle is started, the stage test is completed, and the test device automatically sleeps after flameout for a period of time.
The utility model discloses a high resolution GPS and gyroscope are markd the route of traveling of vehicle durability test still road surface situation to with test data storage in EMMC data storage module, send test data for backend server through 4G communication module simultaneously.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Vehicle reliability test data collection analytic system based on gyroscope, its characterized in that: the system comprises a vehicle-mounted experimental device and a background server, wherein the vehicle-mounted experimental device is used for collecting data, and the background server is used for processing the data; the vehicle-mounted experimental device comprises a main control chip, wherein the main control chip is connected with a can communication module, a GPS positioning module, a 4G communication module, a power supply module, an EMMC data storage module, an RTC clock circuit module, a gyroscope module and a USB module, the running route and the road surface condition of the vehicle durability test are calibrated through a high-resolution GPS and a gyroscope, the test data are stored in the EMMC data storage module, and meanwhile the test data are sent to a background server through the 4G communication module.
2. the gyroscope-based vehicle reliability test data collection and analysis system of claim 1, wherein: the CAN communication module is used for collecting data on a CAN line of the vehicle, and comprises vehicle condition data, battery data, instrument data, position data and gyroscope data, wherein the CAN communication module adopts a model of TJA 1043T.
3. The gyroscope-based vehicle reliability test data collection and analysis system of claim 1, wherein: the GPS positioning module is hung on the periphery of the main control chip through a high-speed serial port, so that the transmission speed is higher, the data is analyzed and then packaged, and the accurate position of the vehicle can be positioned in real time, wherein the model of the GPS positioning module is ATGM 336H-5N-7X.
4. The gyroscope-based vehicle reliability test data collection and analysis system of claim 1, wherein: the 4G communication module contains a TCP/IP communication protocol and is connected with the main control chip through a serial port, the serial port sends an AT instruction to control the 4G communication module to be connected to a specified IP and a specified port, and after the 4G communication module is connected with the server, the main control chip sends the AT instruction to control the 4G communication module to send packed data; the command data sent by the server can also be received and sent to the main control chip through the USB, and the main control chip analyzes the data and then performs corresponding operation, wherein the model adopted by the 4G communication module is EC20_ R2.1_ U0101-A.
5. The gyroscope-based vehicle reliability test data collection and analysis system of claim 1, wherein: the power supply module is used for expanding the input voltage range to 9-36V and providing 3.3V and 5V power supply voltage for each module, wherein the model adopted by the power supply module is MP1584 EN.
6. The gyroscope-based vehicle reliability test data collection and analysis system of claim 1, wherein: the EMMC data storage module is used for storing the sent data in a txt file form and storing a log in the whole test process; the storage module is hung on the main control chip through the SDIO bus, so that the transmission rate is higher and more efficient, wherein the model adopted by the EMMC data storage module is KLM8G1 GEND-B031.
7. The gyroscope-based vehicle reliability test data collection and analysis system of claim 1, wherein: the gyroscope module is connected to an I2C bus interface of the main control chip, the main control chip reads gyroscope data every 50ms, acceleration and inclination angle information of a vehicle can be collected, the gyroscope module is also used as one of awakening sources of the terminal, when the acceleration is too large or the inclination angle is too large, the terminal sends a warning message to the platform, and the platform sends a short message prompt to a vehicle owner, wherein the type of the gyroscope module is LSM6 DSL.
8. The gyroscope-based vehicle reliability test data collection and analysis system according to any one of claims 1 to 7, wherein: the model that the master control chip adopted is STM32F407 v.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821674684.3U CN209802669U (en) | 2018-10-16 | 2018-10-16 | Vehicle reliability test data collection and analysis system based on gyroscope |
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| CN201821674684.3U CN209802669U (en) | 2018-10-16 | 2018-10-16 | Vehicle reliability test data collection and analysis system based on gyroscope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342080A (en) * | 2018-10-16 | 2019-02-15 | 中国汽车技术研究中心有限公司 | Vehicle reliability test data based on gyroscope collects and surveys system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342080A (en) * | 2018-10-16 | 2019-02-15 | 中国汽车技术研究中心有限公司 | Vehicle reliability test data based on gyroscope collects and surveys system |
| CN109342080B (en) * | 2018-10-16 | 2024-04-16 | 中国汽车技术研究中心有限公司 | Vehicle reliability test data collection analysis system based on gyroscope |
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