CN112130540A - Multifunctional data acquisition and intelligent analysis system for new energy electric automobile - Google Patents
Multifunctional data acquisition and intelligent analysis system for new energy electric automobile Download PDFInfo
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Abstract
The invention relates to the technical field of remote monitoring and intelligent analysis of new energy automobiles, in particular to a multifunctional data acquisition and intelligent analysis system of a new energy electric automobile, which comprises a vehicle-mounted data acquisition terminal, a data transceiving protocol, a cloud enterprise platform, a government supervision platform and a data visual display system, wherein the data visual display system comprises a mobile platform and a remote service platform; the data format accords with the national standard, the data transmission gives consideration to real-time performance, safety and usability, various specific intelligent applications are carried out based on the collected data, the received data are processed and analyzed by the powerful storage, operation and processing capabilities of the cloud enterprise platform, specific functions such as position service, driving behavior analysis and fault diagnosis are realized, and the requirements of various user main bodies such as research personnel, after-sales personnel, drivers and government supervision are met.
Description
Technical Field
The invention relates to the technical field of remote monitoring and intelligent analysis of new energy automobiles, in particular to a multifunctional data acquisition and intelligent analysis system of a new energy electric automobile.
Background
With the rapid development of the automobile industry, the problems of energy consumption and environmental pollution are increasingly prominent, energy-saving and environment-friendly new energy automobiles are vigorously developed, the significance of the automobile industry is greatly improved through the internet technology, the mechanical structure of new energy automobiles such as electric automobiles and the like is simpler than that of the traditional internal combustion engine automobiles, the number of transmission and operation parts is relatively less, but the electrical structure is more complicated, a plurality of distributed subsystems form a highly integrated electronic system, and the electronic system is communicated with each other through a Controller Area Network (CAN). Due to the complexity of electronic and electrical conditions of the electric vehicle, the monitoring and intelligent analysis of the vehicle condition are more necessary;
existing solutions have drawbacks including:
(1) the interface function of the vehicle-mounted data acquisition terminal is single, the existing scheme mainly aims at the traditional fuel vehicle type and has the defects of single function, difficult expansion and the like, and the vehicle-mounted data acquisition terminal provides real-time data of vehicle operation and is the basis for constructing intelligent application based on data driving. With the increasing complexity of the requirements of various main bodies such as the whole vehicle factory, the fleet, the government supervision and the like, a multifunctional intelligent vehicle-mounted data acquisition terminal is more urgent;
(2) and the terminal is not compatible with the national standard of the cloud data communication protocol. As the importance of the vehicle real-time monitoring system is increasingly highlighted, the existing scheme does not design a data interaction format from a global perspective and is limited to the use of a single entity;
(3) the new energy automobile monitoring system architecture design based on big data is lacked, and the existing monitoring object traditional fuel oil vehicle and the adopted technical architecture do not consider the big data access situation.
In summary, the invention solves the existing problems by designing a multifunctional data acquisition and intelligent analysis system for a new energy electric vehicle.
Disclosure of Invention
The invention aims to provide a multifunctional data acquisition and intelligent analysis system for a new energy electric vehicle, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a multifunctional data acquisition and intelligent analysis system of a new energy electric vehicle comprises a vehicle-mounted data acquisition terminal, a cloud data transceiving protocol, a cloud enterprise platform, a government supervision platform and a data visual display system, wherein the data visual display system comprises a mobile platform and a remote service platform;
the vehicle-mounted data acquisition terminal is mounted on the new energy automobile and used for acquiring information of a battery, a motor and each main electric control component during the running of the automobile and relevant environment information during the running in real time, completing the local storage of data, preprocessing the data and then sending the preprocessed data to the cloud enterprise platform in real time;
the cloud data transceiving protocol is a data format for information interaction between the vehicle-mounted data acquisition terminal and the cloud enterprise platform;
the cloud enterprise platform is used for receiving the vehicle information sent by the vehicle data acquisition terminal, decoding and storing the information, realizing real-time monitoring on the vehicle through real-time analysis and off-line analysis, and realizing intelligent application of position service, fault diagnosis and driving behavior analysis.
Preferably, the vehicle-mounted data acquisition terminal collects and stores key state parameters of the whole vehicle and system components and sends the key state parameters to the software and hardware integrated device of the cloud enterprise platform, and the software and hardware integrated device is installed on the new energy vehicle.
Preferably, the vehicle-mounted data acquisition terminal comprises a main control unit, a power management module, a CAN module, a storage module, a communication module and a positioning module, wherein the main control unit is connected with and manages the power management module, the CAN module, the communication module, the positioning module and a sensor module, the CAN module is used for acquiring CAN data frames in a vehicle bus, the communication module is used for the remote communication between the vehicle-mounted data acquisition terminal and a cloud enterprise platform, and other functional sub-modules provide corresponding functional supports,
preferably, the communication module comprises 4G/5G, and the 4G/5G is used for the long-distance real-time communication between the vehicle-mounted data acquisition terminal and the cloud enterprise platform to form a data channel for information interaction between the vehicle-mounted data acquisition terminal and the cloud enterprise platform; the positioning module comprises one of a GPS or a Beidou navigation system and is used for providing longitude and latitude position information of a vehicle in the running process and providing data support for related position service, the application mode is real-time monitoring and replaying of the running track of the vehicle, and for example, the data visual display system comprises a mobile platform and a remote service platform, a GPS electronic fence range is arranged on the mobile platform, and if the vehicle runs out of the electronic fence range, the platform can actively prompt a manager for alarm.
Preferably, the data acquired by the vehicle-mounted data acquisition terminal comprises vehicle CAN bus data, GPS position data, image data and other special sensor data, and the related data is subjected to data fusion, packaging and encoding operations at the vehicle-mounted data acquisition terminal, is locally stored and is sent to the cloud enterprise platform in real time in a wireless manner; the vehicle CAN bus data comprises vehicle data, motor data, battery data, extreme value data, alarm data and terminal custom data; the vehicle GPS data comprises positioning state, longitude and latitude information; the sensory data includes body attitude recognition and acceleration data information.
Preferably, the sensor module comprises a G-Senso special sensor for providing attitude information of the vehicle in the running process, the sensor monitors the rapid acceleration and emergency braking of the vehicle, or reports information to the cloud enterprise platform through the vehicle-mounted data acquisition terminal after collision or scratch is judged, and early warning is timely given out.
Preferably, the cloud data transceiving protocol defines data interaction steps and data encryption modes of the vehicle-mounted data acquisition terminal and the cloud enterprise platform.
Preferably, the cloud enterprise platform completes the functions of receiving, processing, storing and big data analyzing of vehicle data, and the vehicle data of the cloud enterprise platform meets the requirements of real-time performance, concurrency and reliability; the cloud data processing is used for finishing the filtering, analyzing, packaging and classifying of the vehicle data; the cloud data storage adopts a structured data and unstructured data mode to finish vehicle data storage; the cloud big data analysis comprises real-time analysis and offline analysis.
Preferably, the cloud enterprise platform realizes specific functions of position service, fault diagnosis and driving behavior analysis of the system based on vehicle historical data, wherein the position service comprises vehicle track playback based on a vehicle frame number and a selected time period, and vehicle control based on vehicle positions is electronic fence control; the driving behavior analysis comprises the steps of finishing scoring and driving improvement suggestions based on the driving history data of the driver information machine; the fault diagnosis service performs remote diagnosis of vehicle faults based on the frame number and historical fault data.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by designing the multi-interface data acquisition terminal suitable for the electric automobile, the data acquisition sources are complete, the data comprise two paths of CAN bus data, position data and sensing data, the data are fused and processed, and the 4G/5G module is used for carrying out remote wireless communication, so that the data are transmitted and received in real time.
2. In the invention, the data format is designed to accord with the national standard, the data transmission is in consideration of real-time performance, safety and usability, the vehicle-mounted data acquisition terminal is compatible with the national standard after carrying out fusion processing on the acquired data, and interacts with the cloud enterprise platform according to a predetermined communication protocol: specifically, the encryption of the vehicle-mounted data acquisition terminal occurs, and the cloud enterprise platform decrypts, analyzes, stores and analyzes the received data.
3. According to the invention, various specific intelligent applications are carried out based on collected data, and the received data is processed and analyzed by the powerful storage, operation and processing capabilities of the cloud enterprise platform, so that specific functions of position service, driving behavior analysis and fault diagnosis are realized, and the requirements of research and development personnel, after-sales personnel, drivers and governments for monitoring various user main bodies are met. Thereby solving the disadvantages of the existing proposal, including:
(1) the vehicle-mounted data acquisition terminal has a single interface function, the existing scheme mainly aims at the traditional fuel vehicle type and has the defects of single function and difficult expansion, and the vehicle-mounted data acquisition terminal provides real-time data of vehicle operation and is the basis for constructing intelligent application based on data driving. With the increasing complexity of the requirements of the whole vehicle factory, the fleet and the government for monitoring various main bodies, a multifunctional intelligent vehicle-mounted data acquisition terminal is more urgent;
(2) and the terminal is not compatible with the national standard of the cloud data communication protocol. As the importance of the vehicle real-time monitoring system is increasingly highlighted, the existing scheme does not design a data interaction format from a global perspective and is limited to the use of a single entity;
(3) the structural design of a new energy automobile monitoring system based on big data is lacked, and the existing traditional fuel oil vehicle as a monitoring object and the adopted technical structure do not consider the problem of big data access situation.
Drawings
FIG. 1 is a schematic view of the overall frame structure of the present invention;
FIG. 2 is a schematic diagram of a hardware structure of the vehicle-mounted data acquisition terminal according to the present invention;
FIG. 3 is a schematic diagram of a data volume type structure according to the present invention;
FIG. 4 is a schematic diagram of a data transmission flow structure according to the present invention;
fig. 5 is a schematic diagram of a cloud enterprise platform structure 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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
as shown in fig. 1, a multifunctional data acquisition and intelligent analysis system for a new energy electric vehicle comprises a vehicle-mounted data acquisition terminal, a cloud data transceiving protocol, a cloud enterprise platform and a government supervision platform, wherein the cloud data transceiving protocol satisfies the third part of the national standards of the people's republic of china (GB/T32960.3-2016) "electric vehicle remote service management system technical specification: the "related requirements of communication protocol and data format" specifically include: connection management, user management and vehicle management, wherein the connection management specifically comprises connection establishment, information reporting and connection disconnection;
as shown in fig. 2, the vehicle-mounted data acquisition terminal is mounted on an electric vehicle, acquires and stores key state parameters of the whole vehicle and system components, and sends the key state parameters to a software and hardware integrated device of an enterprise platform, the hardware mainly comprises a main control unit, a power management module, a CAN module, a storage module, a communication module and a positioning module, the main control unit is connected with and manages the power management module, the CAN module, the communication module and the positioning module, the CAN module is used for acquiring a CAN data frame in a vehicle bus, the communication module is used for remote communication between the vehicle-mounted data acquisition terminal and the cloud enterprise platform, and other functional sub-modules provide corresponding functional supports;
further, the communication module comprises 4G/5G, and the 4G/5G is used for the long-distance real-time communication between the vehicle-mounted data acquisition terminal and the cloud platform;
furthermore, the positioning module comprises one of a GPS or a Beidou navigation system and is used for providing longitude and latitude position information of the vehicle in the driving process, providing data support for related position service, monitoring and replaying the vehicle running track in real time in an application mode, and for example, a GPS electronic fence range is set on the cloud enterprise platform, and if the vehicle is driven out of the electronic fence range, the platform can actively prompt an alarm to a manager;
further, the Sensor module comprises a G-Sensor special Sensor for providing attitude information of the vehicle in the running process, the Sensor monitors the rapid acceleration and the emergency brake of the vehicle, or reports information to the cloud enterprise platform through the vehicle-mounted data acquisition terminal after collision or scratch is judged, and early warning is timely given;
further, the data collected by the vehicle-mounted data collection terminal comprises vehicle working condition data, GPS position data and special sensor data;
further, the vehicle CAN bus data comprises vehicle data, motor data, battery data, engine data, extreme value data, alarm data and custom data; the vehicle GPS data comprises longitude and latitude information; the sensing data comprises acceleration data information;
the vehicle-mounted data acquisition terminal comprises a main control unit, a power management module, two paths of CAN modules, a storage module, a communication module and a positioning module;
the data acquisition terminal main control unit is used for managing each submodule; the CAN module is used for acquiring VCU information of the vehicle control unit connected to a CAN bus of the vehicle, the communication module is used for remote data transmission and near field communication of the vehicle-mounted terminal and the cloud system, and the storage module is mainly used for locally storing the collected vehicle information; the data receiving and sending protocol ensures the stable and reliable uploading of the vehicle data. The cloud enterprise platform collects a big data architecture to achieve high-concurrency data receiving based on received vehicle condition information sent by the data collection terminal, a solid foundation is laid for a cloud system to achieve typical intelligent functions of position service, real-time display, fault diagnosis and remote upgrading by using real-time and offline data analysis technologies, and a government supervision platform achieves effective monitoring of vehicle safe operation.
In order to realize remote monitoring and big data analysis of vehicle data, the vehicle-mounted data acquisition terminal sends acquired data to a remote service platform in an agreed communication protocol mode, and a TCP/IP network protocol specified by GB/32960 is used for information exchange;
a complete data packet consists of a packet header and a packet body, wherein the packet body consists of the data header and a data body. The packet head is composed of an initial symbol, an identification code, a command unit, a data encryption mode, a data unit length, a data unit and a check code;
the packet header format of the data packet is shown in the following table:
table 1:
| data type | Field(s) | Means of |
| BYTE | szStartFlag[2] | ## |
| BYTE | szVIN[17] | Unique identification code of vehicle |
| CMD_UNIT | sCMD | Command unit |
| BYTE | bCryptType | Encryption method |
| BLOCK_INFO | sBlock_Info | Control information |
| BYTE | szSeparator | Separator symbol |
The data head in the bag body comprises the time and the type of information to be collected, and the format is shown in table 2.
Table 2:
| type (B) | Variable names | Means of | Examples of the invention |
| Time | sTime | Time of acquisition | 2020-08-23-03-33 |
| BYTE | bInfoType | Type of |
1 |
The data volume includes specific data types, as shown in FIG. 3.
Taking a vehicle-finished data packet as an example, as shown in table 3, a format of a data header and a data body of the vehicle-finished data packet is given, where the data header includes data acquisition time and a type of the data packet, and the data body includes specific vehicle-finished parameters, such as a vehicle state, a charging state, and an operation mode.
Table 3:
in order to ensure the safety and integrity of the data transmission process and prevent a third party from plagiarism data in the data transmission process, the vehicle-mounted data acquisition terminal encrypts the acquired vehicle working condition data and position data, and correspondingly, the cloud server decrypts the data after receiving the data so as to acquire the original state information of the vehicle operation, as shown in fig. 4, the data in the transmission process is encrypted by adopting an RSA or AES128 algorithm, and a receiver decrypts the data after completely receiving all the data so as to acquire a ciphertext.
As shown in fig. 5, during the communication process, the transceiver flexibly selects a network transmission protocol, such as TCP/UDP/MQTT, according to actual needs; the data communication process is as follows:
connection establishment
Information transmission
Disconnection of connection
The cloud enterprise platform is communicated with the vehicle-mounted data acquisition terminal, and the server receiving end adopts a Netty, Kafka big data assembly and a load balancing module to realize high concurrency and low delay of data transmission.
The cloud enterprise platform completes the receiving, storage and analysis of vehicle data, and realizes specific functions of position service, fault diagnosis and driving behavior analysis of the system.
The cloud enterprise platform analyzes the received vehicle data in a mode of combining offline and streaming calculation, stores the vehicle data by adopting a non-relational database, realizes real-time monitoring of the vehicle running state, and realizes intelligent application of position service, fault diagnosis and driving behavior analysis;
according to the severity of potential safety hazards possibly caused to vehicles, fault and alarm are managed in a grading mode, corresponding handling measures are set at different levels, and the cloud enterprise platform reports the handling measures, handling progress and results of the fault and alarm to the public platform regularly;
the government supervision platform has the information input and maintenance functions used by the whole vehicle enterprise and is used for the enterprise to input vehicle static information and report the handling measures, the handling progress and the handling results of faults and alarms. And acquiring vehicle running and charging operation data from the enterprise platform, and performing supervision and related data analysis, fault and early warning treatment measures, treatment progress and result statistics and analysis functions.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A multifunctional data acquisition and intelligent analysis system of a new energy electric vehicle comprises a vehicle-mounted data acquisition terminal, a data transceiving protocol, a cloud enterprise platform, a government supervision platform and a data visual display system, and is characterized in that the data visual display system comprises a mobile platform and a remote service platform;
the vehicle-mounted data acquisition terminal is mounted on the new energy automobile and used for acquiring information of a battery, a motor and each main electric control component during the running of the automobile and relevant environment information during the running in real time, completing the local storage of data, preprocessing the data and then sending the preprocessed data to the cloud enterprise platform in real time;
the cloud data transceiving protocol is a data format for information interaction between the vehicle-mounted data acquisition terminal and the cloud enterprise platform;
the cloud enterprise platform is used for receiving the vehicle information sent by the vehicle data acquisition terminal, decoding and storing the information, realizing real-time monitoring on the vehicle through real-time analysis and off-line analysis, and realizing intelligent application of position service, fault diagnosis and driving behavior analysis.
2. The multifunctional data acquisition and intelligent analysis system for the new energy electric vehicle as claimed in claim 1, characterized in that: the vehicle-mounted data acquisition terminal is a software and hardware integrated device which acquires and stores key state parameters of the whole vehicle and system components and sends the key state parameters to the cloud enterprise platform and is installed on the new energy vehicle, and the acquisition and storage of the key state parameters of the whole vehicle and system components by the vehicle-mounted data acquisition terminal comprises the steps of acquiring information of a battery, a motor and each main component of the electric control system during vehicle operation and relevant environment information during vehicle operation in real time, completing the local storage of data, preprocessing the data and sending the preprocessed data to the cloud enterprise platform in real time.
3. The multifunctional data acquisition and intelligent analysis system for the new energy electric vehicle as claimed in claim 1, characterized in that: the vehicle-mounted data acquisition terminal comprises a main control unit, a power management module, a CAN module, a storage module, a communication module and a positioning module, wherein the main control unit is connected with and manages the power management module, the CAN module, the communication module, the positioning module and a sensor module, the CAN module is used for acquiring CAN data frames in a vehicle bus, the communication module is used for remote communication of the vehicle-mounted data acquisition terminal and a cloud enterprise platform, and other functional sub-modules provide corresponding functional supports.
4. The multifunctional data acquisition and intelligent analysis system for the new energy electric vehicle as claimed in claim 3, characterized in that: the communication module comprises 4G/5G, and the 4G/5G is used for performing remote real-time communication between the vehicle-mounted data acquisition terminal and the cloud enterprise platform to form a data channel for information interaction between the vehicle-mounted data acquisition terminal and the cloud enterprise platform; the positioning module comprises one of a GPS or a Beidou navigation system and is used for providing longitude and latitude position information of a vehicle in the running process and providing data support for related position service, the application mode is real-time monitoring and replaying of the running track of the vehicle, and for example, the data visual display system comprises a mobile platform and a remote service platform, a GPS electronic fence range is arranged on the mobile platform, and if the vehicle runs out of the electronic fence range, the platform can actively prompt a manager for alarm.
5. The multifunctional data acquisition and intelligent analysis system for the new energy electric vehicle as claimed in claim 1, characterized in that: the data acquired by the vehicle-mounted data acquisition terminal comprises vehicle CAN bus data, GPS position data, image data and other special sensor data, and the related data is subjected to data fusion, packaging and encoding operations at the vehicle-mounted data acquisition terminal, is locally stored and is transmitted to a cloud enterprise platform in a wireless manner in real time; the vehicle CAN bus data comprises vehicle data, motor data, battery data, extreme value data, alarm data and terminal custom data; the vehicle GPS data comprises positioning state, longitude and latitude information; the sensory data includes body attitude recognition and acceleration data information.
6. The multifunctional data acquisition and intelligent analysis system for the new energy electric vehicle as claimed in claim 3, characterized in that: the Sensor module comprises a G-Sensor special Sensor and is used for providing attitude information in the running process of the vehicle, the Sensor monitors the urgent acceleration and the urgent braking of the vehicle, or reports information to the cloud enterprise platform through the vehicle-mounted data acquisition terminal after collision or scratch is judged, and early warning is timely given out.
7. The multifunctional data acquisition and intelligent analysis system for the new energy electric vehicle as claimed in claim 1, characterized in that: the cloud data receiving and sending protocol defines data interaction steps and data encryption modes of the vehicle-mounted data acquisition terminal and the cloud enterprise platform.
8. The multifunctional data acquisition and intelligent analysis system for the new energy electric vehicle as claimed in claim 1, characterized in that: the cloud enterprise platform completes the functions of receiving, processing, storing and big data analyzing of vehicle data, and the vehicle data of the cloud enterprise platform meets the requirements of real-time performance, concurrency and reliability; the cloud data processing is used for finishing the filtering, analyzing, packaging and classifying of the vehicle data; the cloud data storage adopts a structured data and unstructured data mode to finish vehicle data storage; the cloud big data analysis comprises real-time analysis and offline analysis.
9. The multifunctional data acquisition and intelligent analysis system for the new energy electric vehicle as claimed in claim 1, characterized in that: the cloud enterprise platform realizes specific functions of position service, fault diagnosis and driving behavior analysis of the system based on vehicle historical data, wherein the position service comprises vehicle track playback based on a vehicle frame number and a selected time period, and vehicle control based on vehicle positions is electronic fence control; the driving behavior analysis comprises the steps of finishing scoring and driving improvement suggestions based on the driving history data of the driver information machine; the fault diagnosis service performs remote diagnosis of vehicle faults based on the frame number and historical fault data.
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