CN108021382A - A kind of embedded device remote update system, method and embedded device - Google Patents
A kind of embedded device remote update system, method and embedded device Download PDFInfo
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- CN108021382A CN108021382A CN201711406290.XA CN201711406290A CN108021382A CN 108021382 A CN108021382 A CN 108021382A CN 201711406290 A CN201711406290 A CN 201711406290A CN 108021382 A CN108021382 A CN 108021382A
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- 230000003993 interaction Effects 0.000 claims abstract description 5
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- 238000012795 verification Methods 0.000 claims description 6
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
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- G06F8/65—Updates
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- H—ELECTRICITY
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
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Abstract
The present invention discloses a kind of embedded device remote update system, it includes upgrade applications and interactive application, and upgrade applications include：Control module, for sending upgrade request to mobile terminal, and sends a command to program management module after receipt of a response；Program management module, for sending equipment application information to mobile terminal according to instruction, and is sent to application program memory module by the upgrade information from mobile terminal and application information；Application program memory module, for according to upgrade information loading application programs information with to device upgrade；Logging modle, upgrades daily record for generating；Interactive application includes：First communication module, for responding upgrade request, and receiving device application message；Second communication module, for sending device application message to server, to obtain upgrade information and application information so that embedded device upgrades；Information exchange module, for controlling the data interaction of first communication module and second communication module.
Description
Technical field
The present invention relates to embedded device field, relates more specifically to a kind of embedded device remote update system, method
And embedded device.
Background technology
Embedded device is widely used in the fields such as Industry Control, smart home, mobile Internet, Medical Devices at present,
It can develop Related product, and can not change products-hardware with highly integrated property, high reliability towards specific area
On the premise of the upgrading of product function is realized by the program of more new equipment.The existing numeral that can be applied to a variety of welding methods
Change inverter type welder and belong to embedded device, digital inverse welder is controlled by embedded microprocessor, and electricity is provided for welding arc
Can, and with the performance required by a variety of welding methods, and during the use of digital inverse welder, it is possible to occur not
The BUG known, and with science and technology develop, new welding material and new welding procedure occur, meet requirement in hardware
In the case of, it is necessary to upgrade the software of digital inverse welder, improve and add new control mode and welding expert database
System, particularly some related embedded equipment application programs for being directed to Very Important Person customization, find not after being transferred to user's use
Know that problem needs batch updating.
And the method for embedded equipment application program updating is most commonly used in the prior art including following several：1st, PC machine
Embedded device is coupled by dedicated emulator or cd-rom recorder or serial ports, is realized to related chip program in embedded device
Burning and upgrading；2nd, using wired, wireless communication modes such as internet or GPRS module, coupled by the hardware of particular design
Long-range upgrade server realizes the remote upgrade 3 of embedded device, company contact staff to equipment use site, is produced to correlation
Product upgrade.But it is cheap not possess upgrade cost in above-mentioned upgrading scheme, operates the characteristics of simple, and be not suitable for terminal
User oneself upgrades Related product, and wherein first method needs the emulator or cd-rom recorder or serial equipment of specialty, uses
It is of high cost, and need to dismantle device housings and coupled, it is complicated, expend man-hour；Second method needs network of relation
Communication hardware supports that product cost accordingly improves；The third method is gone on business of high cost, and poor in timeliness.
In consideration of it, it is necessary to provide embedded device remote update system a kind of easy to operate and cheap upgrade cost,
Method and embedded device are to solve drawbacks described above.
The content of the invention
The technical problems to be solved by the invention are to provide embedded device a kind of easy to operate and cheap upgrade cost
Remote update system.
Another technical problem to be solved by this invention is to provide a kind of easy to operate and cheap upgrade cost embedded
Equipment remote upgrade method.
Another technical problem to be solved by this invention is to provide a kind of easy to operate and cheap upgrade cost embedded
Equipment.
In order to solve the above technical problems, according to an aspect of the present invention, there is provided a kind of embedded device remote update system,
Embedded device is communicated by mobile terminal to be established with remote server, which, which includes, is stored in the embedded device
The upgrade applications that the processor of formula equipment performs can be embedded into, and be stored in mobile terminal can be by the processing of mobile terminal
The interactive application that device performs, wherein,
Upgrade applications include：
Control module, for sending upgrade request to mobile terminal, and sends after the response of mobile terminal is received and refers to
Make to program management module；
Program management module, sends equipment application information to mobile terminal for the instruction according to control module, and will
Upgrade information and application information from mobile terminal are sent to application program memory module, the equipment application packet
Include the hardware ID and application version number of embedded device；
Application program memory module, for receiving upgrade information and application information from program management module, and
The application information is loaded according to the upgrade information to upgrade to the embedded device；
Logging modle, for application version number after recording current application program version number and upgrading, and generates and rises
Level logs；
Interactive application includes：
First communication module, for communicating by data cable with embedded device, responds the upgrade request of embedded device,
And receive the equipment application information of embedded device；
Second communication module, for being communicated by communication network with remote server, to send the equipment of embedded device
Application message is to remote server, to obtain upgrade information and application information；
Information exchange module, the equipment application information for first communication module to be received are sent to second communication module,
And the upgrade information and application information for receiving second communication module be sent to by the first communication module it is embedded
Equipment upgrades for it.
Its further technical solution is：The upgrade applications have further included upgrade procedure memory module, it is used to connect
Receive upgrade information and application information from program management module, and upgrade information to reception and application information into
Row verification, if verification passes through, the upgrade information and application information are sent to application program memory module.
Its further technical solution is：The equipment application information has further included function of application rights parameters.
Its further technical solution is：Communication between the mobile terminal and embedded device and remote server is adopted
It is encrypted with rivest, shamir, adelman.
Its further technical solution is：Interactive application further included display interactive module, for according to being received
Upgrade information and application information generate corresponding upgrade option and simultaneously show, for selection by the user whether to embedded device into
Row upgrading, if user's selection upgrades embedded device, the first communication module of mobile terminal by upgrade information and is answered
Sent with program information to the embedded device.
Its further technical solution is：The mobile terminal is additionally operable to when user's selection does not upgrade embedded device
When, then disconnect its connection with remote server, and send not upgrade command to the embedded device；The embedded device connects
Operation current application program is redirected after receiving not upgrade command.
In order to solve the above technical problems, according to another aspect of the present invention, there is provided a kind of embedded device remote upgrade side
Method, this method include：
Embedded device sends upgrade request to mobile terminal by data cable, and after the response of mobile terminal is received
Its hardware ID and application version number are sent to the mobile terminal；
Mobile terminal is sent out the hardware ID of the embedded device received and application version number by communication network
Send to remote server, to obtain upgrade information and application information, and the upgrade information and application information are sent
To embedded device so that it upgrades.
Its further technical solution is：The mobile terminal is by the hardware ID of the embedded device received and using journey
Sequence version number is sent to remote server, is further included：Remote server verifies the application version number received,
When the version number of the application program of the application version number received with being stored in remote server is inconsistent, sends and rise
Level information and application information are to mobile terminal.
Its further technical solution is：Generation upgrading daily record after the completion of the embedded device upgrading, and record and currently should
With the application version number after program version number and upgrading.
In order to solve the above technical problems, according to another aspect of the present invention, there is provided a kind of embedded device, it is described embedded
Equipment obtains upgrade information and application information for its upgrading, the embedded device by mobile terminal from remote server
It is connected by data cable with the communication of mobile terminal, to send upgrade request to mobile terminal, and is receiving mobile terminal
Response after sending device application message believe to the mobile terminal, and according to the upgrade information from mobile terminal and application program
Breath is upgraded.
Compared with prior art, the present invention causes mobile terminal to be communicated to connect with embedded device using data cable, and moves
Dynamic terminal is also communicated to connect with remote server so that mobile terminal becomes information between embedded device and remote server and passes
The bridge passed, so that the upgrade request of embedded device and equipment application information can be sent to remote service by mobile terminal
Device, and the upgrade information of remote server response and application information also can be sent to embedded device by mobile terminal,
Realize the remote upgrade of embedded device, the present invention by the use of mobile terminal and data cable as the upgrading tool of embedded device,
The software and hardware of network remote upgrading is being increased without, and is being not required to dismantle device housings in the case of be communicatively coupled, on backstage
The upgrading of embedded device can be completed, easy to operate, upgrade cost is cheap.
Brief description of the drawings
Fig. 1 is the structure diagram of one specific embodiment of embedded device remote update system of the present invention.
Fig. 2 is the concrete structure block diagram of embedded device in Fig. 1.
Fig. 3 is the flow diagram of one specific embodiment of embedded device remote upgrade method of the present invention.
Embodiment
To make those of ordinary skill in the art that the object, technical solutions and advantages of the present invention be more clearly understood, with
Under the present invention is further elaborated in conjunction with the accompanying drawings and embodiments.
A specific reality of 11 remote update system 10 of embedded device of the present invention is illustrated with reference to Fig. 1 and Fig. 2, Fig. 1 and Fig. 2
Apply example.Embedded device 11 is communicated by mobile terminal 12 to be established with remote server 20, described embedded to set in the application
Standby 11 obtain upgrade information and application information for its upgrading by mobile terminal 12 from remote server 20, i.e., described embedding
Enter formula equipment 11 and upgrade request is sent to mobile terminal 12 by data cable, and receive to send after the response of mobile terminal 12 and set
Standby application message is risen to the mobile terminal 12, and according to the upgrade information from mobile terminal 12 and application information
Level.In the present embodiment, the mobile terminal 12 can be carried out by wireless network/4G/ satellite communication networks with remote server 20
Communication.Understandably, the mobile terminal 12 can be the smart machines such as mobile phone, tablet computer.
11 remote update system 10 of embedded device, which includes, to be stored in the embedded device 11 and can be embedded into formula
The upgrade applications that the processor of equipment 11 performs, and it is stored in being held by the processor of mobile terminal 12 for mobile terminal 12
Capable interactive application.Preferably, the upgrade applications include control module 111, program management module 112, answer
With program storage block 114 and logging modle 115；Wherein, the control module 111 is used to send upgrade request to movement eventually
End 12, and described program management module 112 is sent a command to after the response of mobile terminal 12 is received；In the embodiment, institute
State control module 111 and peripheral circuit is carried to realize, and in some other embodiments by arm processor, the control module 111
Also can be realized by one or more control chips in FPGA, DSP, CPLD or MCU.Described program management module 112 is used
Equipment application information is sent to mobile terminal 12 in the instruction according to control module 111, and by the liter from mobile terminal 12
Level information and application information are sent to application program memory module 114；Preferably, the upgrade information includes long-range guiding
Program file, the application information include upgrade applications file and configuration file.The application program memory module
114 are used to receive upgrade information and application information from program management module 112, and are loaded according to the upgrade information
The application information, i.e., should according to the long-range boot program loads upgrading to upgrade to the embedded device 11
With program file, and read configuration file and carry out parameter configuration.The logging modle 115 is used to record current application program version
Number and upgrading after application version number, and generate upgrading daily record；Preferably, it is described upgrading daily record include update time,
Upgrade procedure functional parameter etc..Understandably, can be with when the version before user needs embedded device 11 being reduced to upgrading
The application version number recorded in inquiry logging modle 115, to know the application program version of the preceding embedded device 11 of upgrading
This number.
The interactive application includes：First communication module 121, for logical by data cable and embedded device 11
Letter, responds the upgrade request of embedded device 11, and receives the equipment application information of embedded device 11；The first communication module
The data of 121 monitoring mobile terminal 12USB ports, real-time reception simultaneously responds the upgrade request, in the present embodiment, the equipment
Application message includes the hardware ID and application version number of the embedded device 11.Second communication module 122, for by logical
Communication network communicates with remote server 20, to send the equipment application information of embedded device 11 to remote server 20, to obtain
Take upgrade information and application information.And information exchange module 123, the equipment for first communication module 121 to be received
Application message is sent to second communication module 122, and the upgrade information and application information that second communication module 122 is received
Embedded device 11 is sent to so that it upgrades by the first communication module 121.In the present embodiment, the remote server
After 20 receive the equipment application information from the mobile terminal 12, the application journey in the received equipment application information of verification
Sequence version number, if the version number of the application program of the application version number received with being stored in remote server 20 differs
Cause, then send upgrade information and application information to mobile terminal 12.Preferably, which can also include answering
With program function rights parameters, authenticated in remote server 20 in received application version number and remote server 20
When the version number of the application program of storage is consistent, received function of application rights parameters and long-range clothes can be also verified again
Whether the function privilege parameter of the application program stored in business device 20 is consistent, if inconsistent, also send upgrade information and answers
With program information to mobile terminal 12.Based on above-mentioned design, the present invention is set by the use of mobile terminal 12 and data cable as embedded
Standby 11 upgrading tool so that mobile terminal 12 becomes the bridge of information transmission between embedded device 11 and remote server 20
Beam, so that the upgrade request of embedded device 11 and equipment application information can be sent to remote server by mobile terminal 12
20, and the upgrade information of the response of remote server 20 and application information also can be sent to embedded set by mobile terminal 12
Standby 11, realize the remote upgrade of embedded device 12, easy to operate, upgrade cost is cheap；And mobile terminal 12 has been popularized, and is adopted
By the use of mobile terminal 12 and its data cable carried as the upgrading tool of embedded device 11, upgrade cost can be reduced, improves and moves
The practicality of dynamic terminal 12.
In certain embodiments, the upgrade applications have further included upgrade procedure memory module 113, it is used to receive
Upgrade information and application information from program management module 112, and to the upgrade information and application information of reception
Even-odd check is carried out, if verification passes through, the upgrade information and application information are sent to application program memory module
114.Based on the design, because application information is to write application program memory module 114 by way of cover type renewal, if
Application information verification from mobile terminal 12 is by the way that the data for then downloading to upgrade procedure memory module 113 can be with
Again transmit, but burning again is needed if directly application program memory module 114 is downloaded to from mobile terminal 12, operation is more multiple
It is miscellaneous.
In certain embodiments, the communication between the mobile terminal 12 and embedded device 11 and remote server 20 is equal
It is encrypted using rivest, shamir, adelman.Preferably, public key and the equipment application letter that the embedded device 11 is generated
Breath is sent to remote server 20 by mobile terminal 12, and remote server 20 by rear, uses institute to equipment application Information Authentication
The upgrade information and application information to be sent is encrypted in the public key of reception, and by encrypted upgrade information and answers
Sent with program information by mobile terminal 12 to embedded device 11, which is solved with corresponding private key
It is close, and upgraded according to the information after decryption.Based on equal between mobile terminal 12, remote server 20 and embedded device 11
Using the design of ciphertext communication, it is intercepted and broken in message transmitting procedure can effectively to prevent upgrade information and application information
The problem of solution, strong security.
In certain embodiments, the mobile terminal 12 and remote server 20 use CRC check method to the movement
Transmission information between terminal 12 and remote server 20 is verified, and the mobile terminal 12 and embedded device 11 use
Parity check method verifies the transmission information between the mobile terminal 12 and embedded device 11.Based on above-mentioned design,
It can ensure that communication data transmission reliability and integrality.
In some other embodiments, the interactive application has further included display interactive module, for according to being connect
Whether the upgrade information and application information of receipts generate corresponding upgrade option and show set for selection by the user to embedded
Standby 11 are upgraded, if user's selection upgrades embedded device 11, the first communication module 121 of mobile terminal 12 will
Upgrade information and application information are sent to the embedded device 11.And if user's selection does not carry out embedded device 11
During upgrading, then disconnect its connection with remote server 20, and send not upgrade command to the embedded device 11；The insertion
Formula equipment 11 redirects operation current application program after receiving not upgrade command.Based on the design, mobile terminal 12 can be used
Display screen realizes display interaction, facilitates user and company to carry out remote upgrade to product, user only need to be according to interactive application
Prompting and function introduction click on associated button, can backstage complete embedded device 11 upgrading, it is easy to operate, upgrade into
This is low.
With reference to Fig. 3, Fig. 3 is the flow diagram of one specific embodiment of embedded device remote upgrade method of the present invention.Such as
Shown in Fig. 3, this method includes：
S101, embedded device power on, and the USB peripheral interface for being connected through mobile terminal data line asks upgrading
Transmission is asked to mobile terminal.
In the step, embedded device after the power is turned on, by embedded device connect data cable internal or external USB outside
If interface, and sent upgrade request to mobile terminal using USB communications protocol.
S102, embedded device receive the response of mobile terminal, and its hardware ID and application version number are passed through
The mobile terminal is sent to remote server.
In the step, the interactive application in mobile terminal monitors the data of its USB port, and real-time reception simultaneously responds institute
Upgrade request is stated, after embedded device receives response, by data cable by the hardware ID and application program of embedded device
Version number is sent to the mobile terminal, and hardware ID and application version number are passed through wireless network/4G/ by the mobile terminal
Satellite communication network is sent to remote upgrade server.
Wherein, the communication between mobile terminal and embedded device is encrypted using rivest, shamir, adelman, and using strange
Even parity check method verifies the transmission information between the mobile terminal and embedded device, to ensure that communication data transmission can
By property and integrality.Communication between the mobile terminal and remote server is encrypted using rivest, shamir, adelman,
And the mobile terminal and remote server believe the transmission between the mobile terminal and remote server using CRC check method
Breath is verified.
S103, remote server judge the version number for the application program that received application version number is stored with it
It is whether consistent；Step S104 is performed if inconsistent；Step S107 is performed if consistent.
In the step, remote server verifies the application version number received, when the application journey received
When the version number of the application program of the sequence version number with being stored in remote server is inconsistent, upgrade information and application program are sent
Information is to mobile terminal；And work as received application version number and the version of the application program stored in remote server
When number consistent, send instructions to mobile terminal and disconnect the connection of remote server and mobile terminal, mobile terminal is according to coming from
The instruction of remote server sends not that upgrade command is to the embedded device, and the embedded device is received not upgrade and referred to
Operation current application program is redirected after order.
S104, send upgrade information and application information to mobile terminal.
In the step, the upgrade information includes long-range bootstrap file, and the application information includes upgrading should
With program file and configuration file, the embedded device according to the long-range boot program loads upgrade applications file,
And read configuration file and carry out parameter configuration, to upgrade to the embedded device.
The upgrade information received and application information are sent to embedded device so that it rises by S105, mobile terminal
Level.
Generation upgrading daily record after the completion of S106, embedded device upgrading, and record current application program version number and liter
Application version number after level.
In the step, the upgrading daily record includes update time, upgrade procedure functional parameter etc..
S107, the connection for sending instructions to mobile terminal and disconnecting remote server and mobile terminal.
For upgrade command to embedded device, this is not embedding according to the instruction transmission from remote server for S108, mobile terminal
Enter after formula equipment receives not upgrade command and redirect operation current application program.
Preferably, mobile terminal is provided with human-computer interaction interface, and mobile terminal is believed according to the upgrading from remote server
Whether breath and application information generate corresponding upgrade option, and are shown in human-computer interaction interface, right for selection by the user
Embedded device is upgraded, if user's selection upgrades embedded device, mobile terminal is by upgrade information and application
Program information is sent to the embedded device.And if user's selection is when upgrading embedded device, disconnect its with
The connection of remote server, and send not upgrade command to the embedded device；The embedded device, which receives not upgrade, to be referred to
Operation current application program is redirected after order.
In conclusion the present invention causes mobile terminal to be communicated to connect with embedded device using data cable, and mobile terminal
Also communicated to connect with remote server so that mobile terminal becomes the bridge of information transmission between embedded device and remote server
Beam, so that the upgrade request of embedded device and equipment application information can be sent to remote server by mobile terminal, and far
The upgrade information and application information of journey server response can also be sent to embedded device by mobile terminal, realize insertion
The remote upgrade of formula equipment, the present invention is by the use of mobile terminal and data cable as the upgrading tool of embedded device, without increasing
The software and hardware for adding network remote to upgrade, and be not required to dismantle device housings in the case of be communicatively coupled, it can be completed on backstage
The upgrading of embedded device, easy to operate, upgrade cost is cheap.
The foregoing is merely the preferred embodiment of the present invention, rather than limitation in any form is done to the present invention.This area
Technical staff various equivalent changes and improvement, all institutes within the scope of the claims can be imposed on the basis of above-described embodiment
The equivalent variations done or modification, should all fall under the scope of the present invention.
Claims (10)
1. a kind of embedded device remote update system, it is characterised in that embedded device is taken by mobile terminal with long-range
Device of being engaged in establishes communication, and the embedded device remote update system, which includes to be stored in the embedded device and can be embedded into formula, to be set
The upgrade applications that standby processor performs, and it is stored in the interaction that can be performed by the processor of mobile terminal of mobile terminal
Application program, wherein,
Upgrade applications include：
Control module, for sending upgrade request to mobile terminal, and sends a command to after the response of mobile terminal is received
Program management module；
Program management module, sends equipment application information to mobile terminal for the instruction according to control module, and will come from
The upgrade information and application information of mobile terminal are sent to application program memory module, and the equipment application information includes embedding
Enter the hardware ID and application version number of formula equipment；
Application program memory module, for upgrade information and application information of the reception from program management module, and according to
The upgrade information loads the application information to upgrade to the embedded device；
Logging modle, for application version number after recording current application program version number and upgrading, and generates upgrading day
Will；
Interactive application includes：
First communication module, for communicating by data cable with embedded device, responds the upgrade request of embedded device, and connect
Receive the equipment application information of embedded device；
Second communication module, for being communicated by communication network with remote server, to send the equipment application of embedded device
Information is to remote server, to obtain upgrade information and application information；
Information exchange module, the equipment application information for first communication module to be received are sent to second communication module, and will
The upgrade information and application information that second communication module receives are sent to embedded device by the first communication module
So that it upgrades.
2. embedded device remote update system as claimed in claim 1, it is characterised in that：The upgrade applications are also wrapped
Upgrade procedure memory module is included, it is used to receive upgrade information and application information from program management module, and right
The upgrade information and application information of reception are verified, if verification passes through, by the upgrade information and application information
Send to application program memory module.
3. embedded device remote update system as claimed in claim 1, it is characterised in that：The equipment application information is also wrapped
Function of application rights parameters are included.
4. embedded device remote update system as claimed in claim 1, it is characterised in that：The mobile terminal and embedded
Communication between equipment and remote server is encrypted using rivest, shamir, adelman.
5. embedded device remote update system as claimed in claim 1, it is characterised in that：The interactive application is also wrapped
Display interactive module is included, for generating corresponding upgrade option according to the upgrade information and application information received and showing
Show whether embedded device is upgraded for selection by the user, if user's selection upgrades embedded device, move
The first communication module of terminal sends upgrade information and application information to the embedded device.
6. embedded device remote update system as claimed in claim 5, it is characterised in that：The mobile terminal is additionally operable to work as
When user's selection does not upgrade embedded device, then its connection with remote server is disconnected, and send not upgrade command
To the embedded device；The embedded device redirects operation current application program after receiving not upgrade command.
7. a kind of embedded device remote upgrade method, it is characterised in that the embedded device remote upgrade method includes：
Embedded device sends upgrade request to mobile terminal by data cable, and by it after the response of mobile terminal is received
Hardware ID and application version number are sent to the mobile terminal；
Mobile terminal is sent the hardware ID of the embedded device received and application version number extremely by communication network
Remote server, to obtain upgrade information and application information, and the upgrade information and application information is sent to embedding
Enter formula equipment so that it upgrades.
8. embedded device remote upgrade method as claimed in claim 7, it is characterised in that the mobile terminal will be received
Embedded device hardware ID and application version number send to after remote server, further include：Remote server pair
The application version number received is verified, when the application version number received is somebody's turn to do with what is stored in remote server
When the version number of application program is inconsistent, upgrade information and application information are sent to mobile terminal.
9. embedded device remote upgrade method as claimed in claim 7, it is characterised in that：The embedded device has upgraded
Into rear generation upgrading daily record, and record the application version number after current application program version number and upgrading.
A kind of 10. embedded device, it is characterised in that：The embedded device is obtained by mobile terminal from remote server
Upgrade information and application information upgrade for it；The embedded device is connected by data cable with the communication of mobile terminal,
To send upgrade request to mobile terminal, and sending device application message is whole to the movement after the response of mobile terminal is received
End, and upgraded according to the upgrade information from mobile terminal and application information.
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| CN201711406290.XA CN108021382A (en) | 2017-12-22 | 2017-12-22 | A kind of embedded device remote update system, method and embedded device |
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| CN109358889A (en) * | 2018-12-26 | 2019-02-19 | 山东有人信息技术有限公司 | A kind of serial equipment upgrade method |
| CN109450673A (en) * | 2018-10-24 | 2019-03-08 | 中南民族大学 | Remote firmware updating method, router, storage medium and device |
| CN109656608A (en) * | 2019-01-08 | 2019-04-19 | 深圳市网心科技有限公司 | A kind of MCU firmware upgrade method and its relevant device |
| CN110750283A (en) * | 2019-10-15 | 2020-02-04 | 青岛易触科技有限公司 | Remote upgrading method and system for vending machine driving program |
| CN110825414A (en) * | 2019-11-06 | 2020-02-21 | 许继集团有限公司 | Program upgrading device, embedded device and program upgrading method thereof |
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