CN112787969A - Protocol data conversion system and power vehicle - Google Patents
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- 238000004891 communication Methods 0.000 description 22
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40052—High-speed IEEE 1394 serial bus
- H04L12/40097—Interconnection with other networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
Abstract
The application provides a conversion system and motor car of agreement data, and the conversion system of this agreement data includes: the computer case comprises a case body, wherein a first mutual conversion device, a second mutual conversion device and a main device are arranged in the case body, the first mutual conversion device and the second mutual conversion device are respectively installed on the main device, the first mutual conversion device is used for receiving first protocol data, the first mutual conversion device is used for converting the first protocol data into intermediate protocol data and sending the intermediate protocol data to the main device, the main device is used for receiving the intermediate protocol data and forwarding the intermediate protocol data to the second mutual conversion device, and the second mutual conversion device is used for receiving the intermediate protocol data and converting the intermediate protocol data into second protocol data. In this application, adopt a plurality of devices to realize different functions respectively, compare with prior art, reduced the fault risk and maintained the degree of difficulty.
Description
Technical Field
The application relates to the technical field of rail transit, in particular to a protocol data conversion system and a power vehicle.
Background
In the field of rail transit, a motor train unit consists of a power car and a trailer, wherein the trailer refers to a compartment without traction force, and the power car refers to a compartment with driving force. In order to realize communication between the power vehicle and the trailer, the LonWorks protocol data transmitted by the trailer is generally required to be converted into ethernet protocol data which can be identified by the power vehicle.
In the related art, a circuit board of a power vehicle is usually based on an intelligent transceiver and an ARM chip, after a trailer transmits data to the power vehicle, the power vehicle firstly converts LonWorks protocol data into RS485 protocol data, and then converts the RS485 protocol data into data of an ethernet protocol.
However, the protocol data conversion process is dependent on a circuit board of the vehicle, which increases the risk of failure and the difficulty of maintenance.
Disclosure of Invention
The application provides a protocol data conversion system and a power vehicle, which aim to overcome the problem that the screened features are inaccurate in the existing feature filtering method.
In a first aspect, an embodiment of the present application provides a system for converting protocol data, including:
a chassis;
the machine box is provided with a first mutual conversion device, a second mutual conversion device and a main device, and the first mutual conversion device and the second mutual conversion device are respectively arranged on the main device;
the first mutual conversion device is used for converting first protocol data into intermediate protocol data and sending the intermediate protocol data to the main device, the main device is used for receiving the intermediate protocol data and forwarding the intermediate protocol data to the second mutual conversion device, and the second mutual conversion device is used for receiving the intermediate protocol data and converting the intermediate protocol data into second protocol data.
In a possible implementation, the housing is further provided with a power supply device:
the power supply device is connected with the first mutual conversion device, the second mutual conversion device and the main device and used for providing power supply voltage.
In one possible implementation, the first protocol data is fieldbus protocol data.
In one possible implementation, the intermediate protocol data is controller area network protocol data or RS485 protocol data.
In one possible implementation, the second protocol data is ethernet protocol data or multifunction vehicle bus protocol data.
In one possible implementation, the chassis is further provided with a front-end device:
the front-end device is connected with the second mutual conversion device and used for receiving the second protocol data sent by the second mutual conversion device and sending the second protocol data to the processing device, and the processing device is used for analyzing the second protocol data and issuing an operation instruction.
In one possible implementation, the power supply device is connected with the front-end device;
the front-end device is further configured to provide an input voltage to the power supply device, and the power supply device is configured to convert the input voltage into the supply voltage.
In one possible implementation, the power supply apparatus includes a protection circuit, a first filter circuit, an isolated power supply module, and a second filter circuit:
the first filter circuit is connected with the protection circuit and the isolation power supply circuit respectively, and the isolation power supply circuit is connected with the second filter circuit.
In one possible implementation, the first inter-working device includes a smart transceiver and an ARM processor, and the second inter-working device includes a field programmable gate array and an ARM processor.
In a second aspect, an embodiment of the present application provides a power vehicle, including the protocol data conversion system according to the first aspect.
The protocol data conversion system and the power vehicle provided by the embodiment of the application comprise: the computer case comprises a case body, wherein a first mutual conversion device, a second mutual conversion device and a main device are arranged in the case body, the first mutual conversion device and the second mutual conversion device are respectively installed on the main device, the first mutual conversion device is used for receiving first protocol data, the first mutual conversion device is used for converting the first protocol data into intermediate protocol data and sending the intermediate protocol data to the main device, the main device is used for receiving the intermediate protocol data and forwarding the intermediate protocol data to the second mutual conversion device, and the second mutual conversion device is used for receiving the intermediate protocol data and converting the intermediate protocol data into second protocol data. In this application, adopt a plurality of devices to realize different functions respectively, compare with prior art, reduced the fault risk and maintained the degree of difficulty.
Drawings
Fig. 1 is a first schematic structural diagram of a protocol data conversion system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a protocol data conversion system according to an embodiment of the present application;
fig. 3 is a schematic diagram of a principle of a power board card provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of a first mutual rotation device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a second interchanging device according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
The terms referred to in the present application will be explained first:
LonWorks adopts all 7-layer communication protocols of an ISO/OSI model, adopts an object-oriented design method, and simplifies network communication design into parameter setting through network variables. Products adopting Lonworks technology and intelligent transceivers are widely applied to industries such as building automation, home automation, security systems, office equipment, transportation, industrial process control and the like; ETH is the most common communication protocol standard adopted by the existing local area network; a Multifunction Vehicle Bus (MVB) is a serial data communication bus used primarily between interconnected devices that require interoperability and interchangeability.
The Field-Programmable Gate Array (FPGA) is a product of further development based on Programmable devices such as PAL, GAL, CPLD, etc. The FPGA adopts the concept of Logic Cell Array (LCA), and comprises a configurable Logic module, an output-input module and an internal connecting line.
At present, a motor train unit consists of a power car and a trailer, wherein the trailer refers to a compartment without traction force, and the power car refers to a compartment with driving force. As an example, a data interaction scenario between a trailer and a powered vehicle includes: the trailer sends the smoke alarm information of the carriage to the power vehicle, and the power vehicle controls the power vehicle to stop after receiving the smoke alarm information and stops along with the trailer.
Since the trailer and the power vehicle adopt different types of protocols for communication, the data interaction process between the trailer and the power vehicle in the related art is as follows:
the trailer sends field bus (LonWorks) protocol data to the power vehicle, and the power vehicle firstly converts the LonWorks protocol data into RS485 protocol data and then converts the RS485 protocol data into Ethernet (ETH) protocol data which can be identified by the power vehicle.
The related art has the following drawbacks:
1. the whole process depends on one circuit board of the power vehicle, so that the fault risk and the maintenance difficulty are increased;
2. the whole process lacks a redundancy mechanism, and if the RS485 protocol or the ETH protocol has communication faults, the data interaction between the power vehicle and the trailer is directly interrupted. Wherein, LonWorks protocol data refers to data transmitted by LonWorks protocol; RS485 protocol data refers to data transmitted in RS485 protocol; ETH protocol data refers to data transmitted in the ethernet protocol.
3. Because the circuit board of the power vehicle is based on an intelligent transceiver and an ARM chip, wherein the model of the intelligent transceiver is FT3150, the FT3150 has the characteristics of small memory, low internal clock speed, no interrupt mechanism, small network variable and high cost, and does not have the condition of adopting a Multifunctional Vehicle Bus (MVB) protocol for communication, and the MVB protocol data refers to data transmitted by the MVB protocol.
4. Because the circuit board of the power car does not adopt the independent power, the stability of the system is low.
The embodiment of the application provides a conversion system of protocol data and a power vehicle aiming at the problems existing in the related technology, wherein the conversion system of the protocol data comprises: the computer case comprises a case body, wherein a first mutual conversion device, a second mutual conversion device and a main device are arranged in the case body, the first mutual conversion device and the second mutual conversion device are respectively installed on the main device, the first mutual conversion device is used for receiving first protocol data, the first mutual conversion device is used for converting the first protocol data into intermediate protocol data and sending the intermediate protocol data to the main device, the main device is used for receiving the intermediate protocol data and forwarding the intermediate protocol data to the second mutual conversion device, and the second mutual conversion device is used for receiving the intermediate protocol data and converting the intermediate protocol data into second protocol data. In this application, adopt a plurality of devices to realize different functions respectively, compare with prior art, reduced the fault risk and maintained the degree of difficulty.
The technical solution of the present application will be described in detail by specific examples. It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a protocol data conversion system according to an embodiment of the present application, and as shown in fig. 1, a protocol data conversion system 10 according to the embodiment includes: a chassis 100;
the chassis 100 is provided with a first inter-conversion device 101, a second inter-conversion device 102 and a main device 103, wherein the first inter-conversion device 101 and the second inter-conversion device 102 are respectively installed on the main device 103.
The first inter-conversion device 101 is configured to convert the first protocol data into intermediate protocol data and send the intermediate protocol data to the main device 103, the main device 103 is configured to receive the intermediate protocol data and forward the intermediate protocol data to the second inter-conversion device 102, and the second inter-conversion device 102 is configured to receive the intermediate protocol data and convert the intermediate protocol data into the second protocol data.
The housing 100 may be disposed in a power vehicle, and the housing 100 may have a 3U42TE structure.
For example, the first protocol data may be data that the trailer sends to the powered vehicle and the second protocol data may be data that the powered vehicle recognizes.
Therefore, compared with the prior art that all protocol conversion processes depend on one circuit board of the power vehicle, different functions are realized by adopting different devices, the maintenance is more convenient, and the maintenance difficulty is reduced.
In a possible implementation, a power supply device 104 is further disposed in the chassis 100, and the power supply device 104 is connected to the first inter-conversion device 101, the second inter-conversion device 102, and the main device 103, respectively, for providing a power supply voltage.
Aiming at the problem that the stability of the system is low because an independent power supply is not adopted in a circuit board of a power vehicle in the prior art and a power supply is possibly introduced from other places, a power supply device 104 is further arranged in the case 100 in the embodiment, and the power supply device 104 respectively provides power supply voltages for the first mutual conversion device 101, the second mutual conversion device 102 and the main device 103, so that the problem that the power supplies are not independent is solved, and the stability of the system is improved.
In one possible implementation, the enclosure 100 is further provided with a front-end device 105:
the front-end device 105 is connected to the second interactive device 102, and is configured to receive the second protocol data sent by the second interactive device 102, and send the second protocol data to the processing device, where the processing device is configured to analyze the second protocol data and issue an operation instruction.
In the practical application process, after the power vehicle receives first protocol data, such as a smoke alarm message, sent by the trailer, the first protocol data is converted into intermediate protocol data through the first mutual conversion device, the intermediate protocol data is converted into second protocol data through the second mutual conversion device, and then the second protocol data is sent to the processing device of the power vehicle, wherein the processing device is used for analyzing the second protocol data and sending an operation instruction to the trailer, for example, the trailer is stopped in time.
In one possible implementation, the power supply device 104 is connected to a front-end device 105.
The front-end device 105 is further arranged to provide an input voltage to the power supply device 104, which is arranged to convert the input voltage into a supply voltage.
In one possible implementation, the first protocol data is LonWorks protocol data.
In one possible implementation, the intermediate protocol data is CAN protocol data or RS485 protocol data.
In one possible implementation, the second protocol data is ETH protocol data or MVB protocol data.
In one possible implementation, the power supply device 104 includes a protection circuit, a first filter circuit, an isolated power supply module, and a second filter circuit:
the first filter circuit is connected with the protection circuit and the isolation power circuit respectively, and the isolation power circuit is connected with the second filter circuit.
The protocol data conversion system provided by the embodiment includes: the computer case comprises a case body, wherein a first mutual conversion device, a second mutual conversion device and a main device are arranged in the case body, the first mutual conversion device and the second mutual conversion device are respectively installed on the main device, the first mutual conversion device is used for converting first protocol data into intermediate protocol data and sending the intermediate protocol data to the main device, the main device is used for receiving the intermediate protocol data and forwarding the intermediate protocol data to the second mutual conversion device, and the second mutual conversion device is used for receiving the intermediate protocol data and converting the intermediate protocol data into second protocol data. In this application, adopt a plurality of devices to realize different functions respectively, compare with prior art, reduced the fault risk and maintained the degree of difficulty.
On the basis of the above embodiment, the first conversion device is a board card for converting CAN, RS485 and LonWorks, the second conversion device is a board card for converting ETH, MVB and CAN, RS485, the main device is a main board card, the power supply device is a power supply board card, and the front-end device is a front panel. Fig. 2 is a schematic structural diagram of a protocol data conversion system provided in an embodiment of the present application, and as shown in fig. 2, the protocol data conversion system includes a chassis, in which a board card for converting CAN, RS485 and LonWorks, a board card for converting ETH, MVB and CAN, RS485, a power board card, and a main board card are disposed. The chassis in this embodiment is provided in a power vehicle.
In the example of fig. 2, the communication redundancy mechanism is implemented by adding CAN as an intermediate protocol compared to the prior art in which only RS485 is provided, and similarly, by adding MVB as a second protocol compared to the prior art in which only ETH protocol is provided as a second protocol data.
Fig. 3 is a schematic diagram of a principle of a power board provided in an embodiment of the present application, and as shown in fig. 3, the power board includes a protection circuit, a first filter circuit, an isolation power module, and a second filter circuit, where the first filter circuit is connected to the protection circuit and the isolation power circuit, and the isolation power circuit is connected to the second filter circuit.
The protection circuit has an overvoltage protection function, the first filter circuit and the second filter circuit have front and rear stage filter functions, and the isolation power supply circuit is used for reducing high voltage to lower voltage by using a transformer and then rectifying the high voltage into direct current to output and supply power.
In practical applications, the power board may be provided with an input voltage DC110V through the front panel, and the power board converts the input voltage into a supply voltage DC 5V.
The isolation power supply circuit comprises an isolation power supply, the type of the isolation power supply can be V110C5T75BG, and the range of the input voltage of the isolation power supply is DC66-DC154, the output voltage (supply voltage) DC5V, the power 75W and the maximum output current 15A.
Therefore, the power supply board cards are used for supplying power to the board cards respectively, the problem that the power supply is not independent is solved, and the system stability is enhanced.
In this embodiment, the first inter-conversion device includes an intelligent transceiver and an ARM processor, and the second inter-conversion device includes a field programmable gate array FPGA and an ARM processor.
Fig. 4 is a schematic structural diagram of a first mutual rotation device provided in an embodiment of the present application, and as shown in fig. 4, the first mutual rotation device includes:
the intelligent transceiver, ARM treater, RS485 module and CAN module.
The type of the intelligent transceiver can be FT5000, and the intelligent transceiver has the MVB protocol communication condition; the model of the ARM processor can be STM32F103VGT6, and the ARM processor is used for realizing the redundancy function of the main board card; the main board card is communication redundancy of RS485 and CAN, the first mutual conversion device has the function of mutual conversion of CAN, RS485 and LonWorks, in the practical application process, the default RS485 is prior, if RS485 communication faults such as communication interruption, the communication of the main board card is switched from RS485 to CAN, and therefore data interaction CAN be continuously carried out when RS485 faults occur.
The RS485 module may include a MAX485ESE chip, and the CAN module may include a TJA1050T chip. The RS485 module is connected with an RS485 bus, the CAN module is connected with a CAN bus, the ARM processor CAN be also connected with a crystal oscillator with 8Hz and a power supply with 5V to 3.3V when working, the FT5000 is connected with the crystal oscillator with 10Hz, the power supply with 5V to 3.3V and an FT-X3 transformer, the FT5000 CAN also be respectively connected with an EEPROM through an I2C bus and a FLASH through an SPI bus, and the FT-X3 transformer CAN also be connected with a LonWorks TP/FT-10 channel. The specific implementation process is similar to that of the prior art, and is not described herein again.
It should be noted that FT5000 has the following characteristics compared with FT3150 in the prior art:
1. the new memory architecture: inexpensive, more readily available from multiple memory vendors, faster memory operations;
2. the performance is improved: the power supply voltage of 3.3V and the maximum internal clock frequency of 40MHz are 4 to 8 times faster than the FT31x0 clock frequency, the maximum 254 network variables are supported, an on-chip hardware multiplier and divider are supported, the user interruption is supported, the price of the node is obviously reduced, and the small 7mm x 7mm QFN package is adopted;
3. the supported serial interfaces are: I2C, SPI;
4. supported serial memory types: EEPROM and Flash;
5. the FT5000 smart transceiver is fully backward compatible: communication channel, instruction set, I/O pin
6. Enhancing the performance of the serial I/O mode: the hardware supports SPI and SCI/UART serial interface, and the input and output are provided with 16-entry FIFO;
7. intelligent transceiver FT5000 incorporates
And
all functions of the smart transceiver: the 5000 series of chips are not provided with a nonvolatile memory (NVM), the external serial NVM is used for storing nonvolatile output (application program code/data and configuration data), the size of the serial NVM application program is more flexible when the serial NVM application program size is selected, the size of the application program storage space is easily upgraded, a new circuit board design is not needed, and the circuit board space consumption is the same as or smaller than that of a 32-pin FT3120 chip.
Fig. 5 is a schematic structural diagram of a second mutual rotation device provided in the embodiment of the present application, and as shown in fig. 5, the second mutual rotation device includes:
ARM treater, FPGA, RS485 module, CAN module and MVB module.
Wherein, the model of ARM treater CAN be STM32F103VGT6, FPGA's model CAN be XC6SLX16-2FT256I, the front panel is ETH agreement and MVB agreement communication redundancy, the second device of each other changeing has ETH, MVB and CAN, the function that RS485 interconverts, in practical application process, acquiescence ETH is preferred, if when ETH communication trouble, switch the front panel communication into MVB by ETH, the main integrated circuit board is RS485 and CAN agreement communication redundancy, when RS485 agreement communication trouble, switch into the CAN agreement by the RS485 agreement.
The RS485 module may include a MAX485ESE chip, and the CAN module may include a TJA1050T chip. The RS485 module is connected with an RS485 bus, the CAN module is connected with a CAN bus, the ARM processor CAN also be connected with a 25Hz crystal oscillator, a 5V-to-3.3V power supply and an ETH module respectively when working, the ETH module comprises a DA83848I chip, the FPGA is connected with the 5V-to-3.3V power supply, a 24MHz crystal oscillator, a 3.3V-to-1.2V power supply and an MVB module respectively, wherein the ETH module CAN also be connected with an ETH bus of a front panel, the MVB module CAN also be connected with a MVB bus of the front panel, the MVB module comprises a MAX3088ESA chip, and the FPGA model is XC6SLX9-2FT 256I. The specific implementation process is similar to that of the prior art, and is not described herein again.
It should be noted that, when the power vehicle issues an operation instruction to the trailer, the chassis of the trailer may further include a third mutual rotation device, a fourth mutual rotation device, and a main device of the trailer, and when the trailer receives protocol data sent by the power vehicle, the protocol data may also be converted into protocol data recognizable by the trailer through the third mutual rotation device, the fourth mutual rotation device, and the main device of the trailer, so as to perform corresponding operations, such as closing a car door, stopping the vehicle, and the like.
The system for protocol data provided by the embodiment comprises: the power supply device is connected with the first mutual conversion device, the second mutual conversion device and the main device and used for providing power supply voltage, the first protocol data is field bus protocol data, the middle protocol data is controller local area network protocol data or RS485 protocol data, and the second protocol data is Ethernet protocol data or multifunctional vehicle bus protocol data. Therefore, the problem that the power supply is not independent is solved, the system stability is enhanced, a communication redundancy mechanism is improved, if any protocol communication fault exists, the data interaction between the power vehicle and the trailer can be still ensured, and the fault risk is reduced.
The embodiment of the application also provides a power vehicle which comprises the protocol data conversion system in the embodiment.
It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application.
It should be understood that, in the embodiment of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A system for converting protocol data, comprising: a chassis;
the machine box is provided with a first mutual conversion device, a second mutual conversion device and a main device, and the first mutual conversion device and the second mutual conversion device are respectively arranged on the main device;
the first mutual conversion device is used for converting first protocol data into intermediate protocol data and sending the intermediate protocol data to the main device, the main device is used for receiving the intermediate protocol data and forwarding the intermediate protocol data to the second mutual conversion device, and the second mutual conversion device is used for receiving the intermediate protocol data and converting the intermediate protocol data into second protocol data.
2. The conversion system of claim 1, wherein the chassis further comprises a power supply device:
the power supply device is connected with the first mutual conversion device, the second mutual conversion device and the main device and used for providing power supply voltage.
3. The conversion system of claim 1, wherein the first protocol data is fieldbus protocol data.
4. The conversion system of claim 1, wherein the intermediate protocol data is controller area network protocol data or RS485 protocol data.
5. The conversion system of claim 1, wherein the second protocol data is ethernet protocol data or multifunction vehicle bus protocol data.
6. The conversion system of claim 2, wherein the chassis is further provided with a front end device:
the front-end device is connected with the second mutual conversion device and used for receiving the second protocol data sent by the second mutual conversion device and sending the second protocol data to the processing device, and the processing device is used for analyzing the second protocol data and issuing an operation instruction.
7. The conversion system of claim 6, wherein the power supply device is connected to the front end device;
the front-end device is further configured to provide an input voltage to the power supply device, and the power supply device is configured to convert the input voltage into the supply voltage.
8. The conversion system of claim 2, wherein the power supply device comprises a protection circuit, a first filter circuit, an isolated power supply module, and a second filter circuit:
the first filter circuit is connected with the protection circuit and the isolation power supply circuit respectively, and the isolation power supply circuit is connected with the second filter circuit.
9. The conversion system of claim 1, wherein the first inter-conversion device comprises a smart transceiver and an ARM processor, and the second inter-conversion device comprises a field programmable gate array and an ARM processor.
10. A vehicle characterized by comprising the protocol data conversion system according to any one of claims 1 to 9.
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