CN112214228A - Vehicle-mounted instrument upgrading method, device and system - Google Patents
Vehicle-mounted instrument upgrading method, device and system Download PDFInfo
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- CN112214228A CN112214228A CN202010923891.3A CN202010923891A CN112214228A CN 112214228 A CN112214228 A CN 112214228A CN 202010923891 A CN202010923891 A CN 202010923891A CN 112214228 A CN112214228 A CN 112214228A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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Abstract
The invention relates to the technical field of vehicle-mounted instrument upgrading, in particular to a method, a device and a system for upgrading a vehicle-mounted instrument. The method is applied to a vehicle-mounted instrument upgrading device and specifically comprises the following steps: establishing communication connection with a vehicle-mounted instrument to be upgraded; establishing a connection with the storage unit according to the upgrading instruction, and calling the storage unit upgrading file; preprocessing the upgrade file to obtain upgrade data which can be identified by the vehicle-mounted instrument; and sending the upgrading data to the vehicle-mounted instrument to realize upgrading of the vehicle-mounted instrument. According to the invention, the transmission of the upgrade file in the storage unit to the vehicle-mounted instrument is realized through the main processor and the coprocessor of the upgrade device, so that the upgrade of the vehicle-mounted instrument is conveniently and rapidly realized, wherein the main processor and the coprocessor adopt a mode of converting a USB (universal serial bus) into a UDS (universal serial bus) protocol and transmit the upgrade file to the vehicle-mounted instrument through a CAN (controller area network) bus, the upgrade of the vehicle-mounted instrument CAN be automatically completed without manually adding the upgrade file, the upgrade failure risk is further reduced, and the upgrade efficiency of the vehicle-mounted instrument.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted instrument upgrading, in particular to a method, a device and a system for upgrading a vehicle-mounted instrument.
Background
With the development of the automobile industry and the progress of science and technology, the importance of intelligent devices such as vehicle-mounted instruments and the like in the automobile field is higher and higher, and the requirements and the concerns of enterprises and customers are higher and higher.
At present, the upgrading of on-vehicle instrument is usually based on expensive CANoe host computer software (CAN open environment) + VN1630 equipment, but its equipment cost is high, and in order to upgrade the instrument comprehensively, the upgrading personnel need utilize CANoe software in proper order with APP material, HMI material and sound material burn the combined meter in, the new material of manual loading is required to the upgrading process, the operating time of upgrading personnel has not only been increased, there is the risk that the introduction error leads to upgrading failure moreover.
Disclosure of Invention
The invention provides a method, a device and a system for upgrading a vehicle-mounted instrument, and aims to solve the problems of high upgrading cost, low upgrading efficiency and high upgrading failure rate of the vehicle-mounted instrument.
In order to solve the technical problems, the technical scheme of the invention is as follows:
on one hand, the invention provides a vehicle-mounted instrument upgrading method which is applied to a vehicle-mounted instrument upgrading device and specifically comprises the following steps:
establishing communication connection with a vehicle-mounted instrument to be upgraded;
establishing a connection with the storage unit according to the upgrading instruction, and calling the storage unit upgrading file;
preprocessing the upgrade file to obtain upgrade data which can be identified by the vehicle-mounted instrument;
and sending the upgrading data to the vehicle-mounted instrument to realize upgrading of the vehicle-mounted instrument.
Further, before establishing communication connection with the vehicle-mounted instrument to be upgraded, the method further comprises:
and initializing the peripheral module of the upgrading device.
Further, the upgrading method further includes:
and monitoring the upgrading process in real time, and displaying the upgrading state information through a display unit.
Further, the upgrade status information includes upgrade file information, error information, upgrade status, and upgrade progress.
Further, the establishing of the communication connection with the vehicle-mounted instrument to be upgraded includes:
the vehicle-mounted instrument is in communication connection with the vehicle-mounted instrument through a CAN bus;
and sending an upgrading instruction to the vehicle-mounted instrument, monitoring and receiving an upgrading confirmation instruction fed back by the vehicle-mounted instrument.
Further, the storage unit is a USB flash disk; the storage unit is connected with the upgrading device through a USB interface, and data transmission connection with the upgrading device is achieved.
Further, the preprocessing the upgrade file to obtain upgrade data that can be identified by the vehicle-mounted instrument includes:
and preprocessing the upgrade file through the UDS protocol, and converting and packaging the upgrade file into upgrade data meeting the UDS protocol standard.
In a second aspect, the present invention provides an upgrading apparatus for a vehicle-mounted instrument, the upgrading apparatus comprising:
the main processor is used for receiving the upgrade file in the storage unit, processing data and then sending the upgrade file to the vehicle-mounted instrument to be upgraded; and
and the coprocessor is in data transmission connection with the storage unit and is used for calling the upgrade file in the storage unit and sending the upgrade file to the main processor for data processing.
Further, the upgrade apparatus further includes:
and the display unit is connected with the main processor and used for acquiring and displaying the upgrading state information of the vehicle-mounted instrument through monitoring of the main processor.
Further, the main processor is in SPI communication connection with the coprocessor.
In a third aspect, the present invention further provides an upgrade system for a vehicle-mounted instrument, where the upgrade system includes:
a vehicle-mounted instrument to be upgraded;
the storage unit is loaded with the vehicle-mounted instrument upgrading file; and
the upgrading device is connected with the vehicle-mounted instrument and the storage unit;
the upgrading device is the vehicle-mounted instrument upgrading device.
Furthermore, the vehicle-mounted instrument is connected with the upgrading device by a CAN bus; and the storage unit is connected with the upgrading device by adopting a USB.
According to the invention, the transmission of the upgrade files in the storage unit to the vehicle-mounted instrument is realized through the main processor and the coprocessor of the upgrade device, so that the upgrade of the vehicle-mounted instrument is conveniently and rapidly realized, wherein the main processor and the coprocessor adopt a mode of converting a USB (universal serial bus) into a UDS (universal serial bus) protocol and transmit the upgrade files to the vehicle-mounted instrument through the CAN (controller area network) bus, so that the upgrade of the vehicle-mounted instrument CAN be automatically completed when a plurality of upgrade files exist, the upgrade files do not need to be manually added, the upgrade failure risk is further reduced, and the upgrade efficiency.
Drawings
Fig. 1 is a flowchart of a specific structure of a vehicle-mounted instrument upgrading method in an embodiment of the present invention.
Fig. 2 is a flowchart of a specific structure of step 101 in the vehicle instrument upgrading method according to the embodiment of the present invention.
Fig. 3 is a specific flow structure diagram of a vehicle instrument upgrading method in the embodiment of the present invention.
Fig. 4 is a block diagram of a structure of a vehicle-mounted instrument upgrading device in the embodiment of the invention.
Fig. 5 is a specific hardware structure diagram of the vehicle instrument upgrading device in the embodiment of the present invention.
Fig. 6 is a block diagram of a vehicle-mounted instrument upgrading system in the embodiment of the present invention.
Fig. 7 is a specific hardware structure diagram of the vehicle instrument upgrading system in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
Fig. 1 shows a specific structure flowchart of the vehicle-mounted meter upgrading method in this embodiment.
As shown in fig. 1, the present embodiment provides a method for upgrading a vehicle-mounted instrument, which is mainly used for upgrading software of the vehicle-mounted instrument, where the vehicle-mounted instrument includes a vehicle-mounted instrument, a vehicle-mounted multimedia and other intelligent control or display devices, and in the present embodiment, the vehicle-mounted instrument is mainly a vehicle-mounted instrument. Specifically, the method is applied to a vehicle-mounted instrument upgrading device, and a main processor and a coprocessor in the upgrading device are adopted to execute the method.
Specifically, the method comprises the following steps:
101. and establishing communication connection with the vehicle-mounted instrument to be upgraded.
The upgrading device is connected with the vehicle-mounted instrument in a communication manner by a Controller Area Network (CAN) bus, so that information transmission and interaction between the upgrading device and the vehicle-mounted instrument are realized.
102. And establishing a connection with the storage unit according to the upgrading instruction, and calling the storage unit upgrading file.
The storage unit refers to a mobile storage device capable of storing an upgrade file of the vehicle-mounted instrument, and in this embodiment, the storage unit is a USB storage device (Universal Serial Bus).
The upgrading device is connected with the storage unit through a USB interface, and can acquire the upgrading file stored in the storage unit through the USB interface.
103. And preprocessing the upgrade file to obtain upgrade data which can be identified by the vehicle-mounted instrument.
The preprocessing refers to that a main processor in the upgrading device converts and encapsulates upgrading files called from the storage unit according to a specific protocol, and then upgrading data which can be identified and upgraded by the vehicle-mounted instrument are obtained. Specifically, in this embodiment, the above protocol is the UDS (Unified Diagnostic Services) protocol.
104. And sending the upgrading data to the vehicle-mounted instrument to realize upgrading of the vehicle-mounted instrument.
In the data transmission process of the upgrading device and the vehicle-mounted instrument, the main controller monitors the transmission process in real time, acquires error information and transmission progress generated in the transmission process, and further realizes background monitoring of an operator on the upgrading process.
The method has the advantages that the upgrading file in the storage unit is called by the upgrading device and is converted into upgrading data which accord with the UDS protocol, and then the upgrading data are output to the vehicle-mounted instrument, rapid downloading and upgrading of the vehicle-mounted instrument are achieved.
In some embodiments, the upgrading method further includes, before the step 101 of establishing a communication connection with the vehicle instrument to be upgraded:
and initializing the peripheral module of the upgrading device.
The peripheral module specifically includes a USB access peripheral module, a CAN access peripheral module, and certainly, may also include hardware modules such as a display module.
In some embodiments, the upgrade method further includes:
and monitoring the upgrading process in real time, and displaying the upgrading state information through a display unit.
The display unit is in communication connection with a main processor in the upgrading device, so that upgrading state information in the upgrading process of the vehicle-mounted instrument is acquired and displayed, and monitoring of operators is facilitated. Preferably, the upgrade status information includes upgrade file information, error information, upgrade status, and upgrade progress. The method comprises the following steps that upgrading file information is the name of each upgrading file when a plurality of upgrading files exist; the error information is that the upgrading device misses sending or sends a data list with errors in the upgrading process; the upgrading state and the upgrading progress are the upgrading state and the upgrading progress of the current vehicle-mounted instrument.
Fig. 2 shows a flowchart of a specific structure of step 101 in the vehicle-mounted meter upgrading method in this embodiment.
As shown in fig. 2, the step of establishing a communication connection with the vehicle-mounted instrument to be upgraded specifically includes:
201. and the vehicle-mounted instrument is in communication connection with the vehicle-mounted instrument through a CAN bus.
202. And sending an upgrading instruction to the vehicle-mounted instrument, monitoring and receiving an upgrading confirmation instruction fed back by the vehicle-mounted instrument.
When upgrading, the upgrading device and the vehicle-mounted instrument perform communication handshake according to the UDS protocol, and determine whether to upgrade or not, so that the upgrading process of the vehicle-mounted instrument is started.
In some embodiments, the storage unit is a USB flash drive, i.e., a USB flash drive. In the aspect of structure, the storage unit is connected with the upgrading device through the USB interface, so that data transmission connection with the upgrading device is achieved, in the upgrading process, the coprocessor in the upgrading device calls the upgrading file in the storage unit and sends the upgrading file to the main processor through SPI communication, and subsequent data processing is conducted.
In some embodiments, the step 103 of preprocessing the upgrade file to obtain upgrade data that can be identified by the vehicle-mounted instrument specifically includes:
and preprocessing the upgrade file through the UDS protocol, and converting and packaging the upgrade file into upgrade data meeting the UDS protocol standard.
The main processor of the upgrading device is connected with the vehicle-mounted instrument through the CAN, and data interactive transmission is carried out through the UDS protocol.
For better operation experience, a specific flowchart of the vehicle-mounted instrument upgrading method in this embodiment is provided, and specifically, as shown in fig. 3, the method is applied to an upgrading device, where the upgrading device specifically includes a main processor, a coprocessor and a display unit, where in an upgrading preparation stage, the upgrading device initializes a USB access peripheral module, a CAN access peripheral, the display unit and a UDS service module, and in an upgrading process, the main processor establishes a contact with the vehicle-mounted instrument and confirms upgrading, and then the coprocessor reads corresponding file data in a storage unit, i.e., a USB storage device, according to a read request of the main processor, and transmits the file data to the main processor through an SPI.
The main processor reads the material configuration file and the upgrading file in the USB storage device, checks whether the address and size information in the upgrading file is consistent with the configuration file, displays the file information on the display unit after checking that the file information is error-free, and initializes the total transmission progress and the single file transmission progress. And then, starting a UDS downloading process, and downloading the file to the target equipment according to the sequence given in the configuration table. In the UDS downloading and transmitting process, the main processor monitors the downloading and transmitting process in real time and displays the process information through the display unit, so that the monitoring of an operator is facilitated, and the program upgrading of the vehicle-mounted instrument is finished in order.
Specifically, in this embodiment, the vehicle-mounted instrument is a vehicle-mounted combination instrument.
Fig. 4 shows a block diagram of the vehicle-mounted meter upgrading device in the embodiment.
As shown in fig. 4, the present embodiment further provides an upgrade apparatus for a vehicle instrument, where the upgrade apparatus includes a main processor 301 and a coprocessor 302; the main processor 301 is configured to receive the upgrade file in the storage unit, perform data processing, and then send the upgrade file to the vehicle-mounted instrument to be upgraded. The coprocessor 302 is connected to the storage unit in a data transmission manner, and is configured to call the upgrade file in the storage unit and send the upgrade file to the main processor 301 for data processing.
Specifically, the upgrade apparatus executes the following steps by the main processor 301 and the coprocessor 302:
establishing communication connection with a vehicle-mounted instrument to be upgraded;
establishing a connection with the storage unit according to the upgrading instruction, and calling the storage unit upgrading file;
preprocessing the upgrade file to obtain upgrade data which can be identified by the vehicle-mounted instrument;
and sending the upgrading data to the vehicle-mounted instrument to realize upgrading of the vehicle-mounted instrument.
In some embodiments, the upgrading device further includes a display unit 303, where the display unit 303 is connected to the main processor 301, and is configured to obtain and display the upgrade status information of the vehicle-mounted instrument through monitoring of the main processor 301, so as to facilitate monitoring by an operator.
In some embodiments, the main processor 301 and the coprocessor 302 are connected by using SPI communication, thereby implementing transmission of the upgrade file in the storage unit.
The benefit of this device lies in, this upgrading device passes through main processor 301 and coprocessor 302, realize the transport of upgrading file to on-vehicle instrument in the memory cell, and then the convenient quick upgrading of realizing on-vehicle instrument, wherein, main processor 301 and coprocessor 302 adopt the mode that USB changes the UDS agreement, and transmit upgrading file to on-vehicle instrument through the CAN bus, when making to have a plurality of upgrading files, the upgrading of on-vehicle instrument CAN be accomplished automatically, need not manual interpolation upgrading file, and then reduced the failed risk of upgrading, the upgrading efficiency of on-vehicle instrument has been improved.
The embodiment provides an internal hardware structure of each component of the vehicle-mounted instrument upgrading device, as shown in fig. 5, wherein the main processor 301 specifically includes a first processing chip, a power circuit, a CAN peripheral circuit and a CAN interface, wherein the first processing chip is mainly used for data processing function of the main processor 301, the power circuit is used for providing power input for the main processor 301, and in addition, the CAN peripheral circuit and the CAN interface are used for realizing CAN bus communication connection between the main processor 301 and the vehicle-mounted instrument.
In the aspect of the coprocessor 302, the coprocessor mainly includes a second processing chip, a power circuit, a USB peripheral circuit, and a USB interface, where the second processing chip is mainly used for data processing of the coprocessor 302 and a communication function with the first processing chip, the power circuit is used for providing a power input for the coprocessor 302, and in addition, the USB peripheral circuit and the USB interface are used for implementing a USB communication connection between the coprocessor 302 and the storage unit.
Fig. 6 shows a block diagram of a configuration of the vehicle-mounted meter upgrading system in the present embodiment, and fig. 7 shows a specific hardware configuration diagram of the vehicle-mounted meter upgrading system in the present embodiment.
As shown in fig. 6 and 7, the present embodiment further provides an upgrade system for a vehicle-mounted instrument, specifically, the upgrade system includes:
a vehicle instrument 401 to be upgraded;
a storage unit 402 storing an upgrade file of the vehicle-mounted instrument 401; and
an upgrade device connected to the in-vehicle instrument 401 and the storage unit 402;
the upgrading device is the vehicle-mounted instrument upgrading device 300 in the embodiment. The upgrading device is used for reading the upgrading file in the storage unit 402, converting the upgrading file into upgrading data which can be identified by the vehicle-mounted instrument 401, and outputting the upgrading data to the vehicle-mounted instrument 401 to realize software upgrading of the vehicle-mounted instrument 401.
In some embodiments, the vehicle-mounted instrument 401 is connected with the upgrading device by a CAN bus; the storage unit 402 is connected with the upgrading device by adopting a USB.
This system changes the mode of CAN transmission through USB, utilize the upgrading device to turn into the upgrading data that vehicle instrument 401 CAN accept with the upgrading file in the memory cell 402, and send to vehicle instrument 401, make vehicle instrument 401 CAN carry out effective software upgrading, compare "CANoe + VN 1630" scheme among the background art, its loading file speed is showing and is improving, and simultaneously, need not the manual file that adds of operating personnel, the failed risk of upgrading has been reduced, and this system upgrading equipment cost is lower, the upgrading cost of the on-vehicle combination meter of enterprise has been reduced.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (12)
1. A vehicle-mounted instrument upgrading method is characterized by being applied to a vehicle-mounted instrument upgrading device, and specifically comprises the following steps:
establishing communication connection with a vehicle-mounted instrument to be upgraded;
establishing a connection with the storage unit according to the upgrading instruction, and calling the storage unit upgrading file;
preprocessing the upgrade file to obtain upgrade data which can be identified by the vehicle-mounted instrument;
and sending the upgrading data to the vehicle-mounted instrument to realize upgrading of the vehicle-mounted instrument.
2. The vehicle instrument upgrading method according to claim 1, wherein before establishing communication connection with the vehicle instrument to be upgraded, the method further comprises:
and initializing the peripheral module of the upgrading device.
3. The vehicle instrument upgrading method according to claim 1, further comprising:
and monitoring the upgrading process in real time, and displaying the upgrading state information through a display unit.
4. The vehicle-mounted instrument upgrading method according to claim 3, wherein the upgrading state information comprises upgrading file information, error information, upgrading state and upgrading progress.
5. The vehicle instrument upgrading method according to claim 1, wherein the establishing communication connection with the vehicle instrument to be upgraded comprises:
the vehicle-mounted instrument is in communication connection with the vehicle-mounted instrument through a CAN bus;
and sending an upgrading instruction to the vehicle-mounted instrument, monitoring and receiving an upgrading confirmation instruction fed back by the vehicle-mounted instrument.
6. The vehicle-mounted instrument upgrading method according to claim 1, characterized in that the storage unit is a USB flash disk; the storage unit is connected with the upgrading device through a USB interface, and data transmission connection with the upgrading device is achieved.
7. The vehicle-mounted instrument upgrading method according to claim 1, wherein the preprocessing the upgrading file to obtain upgrading data recognizable by the vehicle-mounted instrument comprises:
and preprocessing the upgrade file through the UDS protocol, and converting and packaging the upgrade file into upgrade data meeting the UDS protocol standard.
8. An on-vehicle instrument upgrading device, its characterized in that, upgrading device includes:
the main processor is used for receiving the upgrade file in the storage unit, processing data and then sending the upgrade file to the vehicle-mounted instrument to be upgraded; and
and the coprocessor is in data transmission connection with the storage unit and is used for calling the upgrade file in the storage unit and sending the upgrade file to the main processor for data processing.
9. The vehicle instrument upgrading apparatus according to claim 8, further comprising:
and the display unit is connected with the main processor and used for acquiring and displaying the upgrading state information of the vehicle-mounted instrument through monitoring of the main processor.
10. The vehicle instrument upgrading device of claim 8, wherein the main processor is in SPI communication connection with the coprocessor.
11. An on-board meter upgrade system, the upgrade system comprising:
a vehicle-mounted instrument to be upgraded;
the storage unit is loaded with the vehicle-mounted instrument upgrading file; and
the upgrading device is connected with the vehicle-mounted instrument and the storage unit;
wherein the upgrading device is the vehicle instrument upgrading device as set forth in any one of claims 8-10.
12. The vehicle-mounted instrument upgrading system according to claim 11, wherein the vehicle-mounted instrument is connected with the upgrading device through a CAN bus; and the storage unit is connected with the upgrading device by adopting a USB.
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| CN202010923891.3A CN112214228A (en) | 2020-09-04 | 2020-09-04 | Vehicle-mounted instrument upgrading method, device and system |
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| CN202010923891.3A CN112214228A (en) | 2020-09-04 | 2020-09-04 | Vehicle-mounted instrument upgrading method, device and system |
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