CN109298879A - A kind of method of efficient Internet of Things FOTA upgrading - Google Patents
A kind of method of efficient Internet of Things FOTA upgrading Download PDFInfo
- Publication number
- CN109298879A CN109298879A CN201710610301.XA CN201710610301A CN109298879A CN 109298879 A CN109298879 A CN 109298879A CN 201710610301 A CN201710610301 A CN 201710610301A CN 109298879 A CN109298879 A CN 109298879A
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- Prior art keywords
- command
- packet
- server side
- terminal
- size
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Classifications
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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
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/164—Adaptation or special uses of UDP protocol
-
- 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
- H04L69/22—Parsing or analysis of headers
Abstract
A kind of method of efficient Internet of Things FOTA upgrading, comprising the following steps: marked based on udp protocol explosion command, the lateral server side of terminal sends notice FLASH block size command packet, and receives the version size command packet of server side transmission；Server side receives the ready command packet that terminal side is sent, and sends data packet to terminal side.The method of the invention saves bandwidth compared with prior art FOTA Data Interchange Technology, improves upgrading efficiency, improves the read-write efficiency and its service life of FLASH, is more suitable for the characteristics such as small memory, the low bandwidth of internet-of-things terminal system.
Description
Technical field
The present invention relates to internet of things field more particularly to a kind of internet-of-things terminal edition upgrading technologies.
Background technique
The aerial downloading software upgrading (Firmware Over-The-Air FOTA) of mobile terminal, refers to and is upgraded by cloud
Technology, for the terminal device with networking function, (such as mobile phone, tablet computer, portable media player, mobile Internet are set
It is standby etc.) firmware update services are provided, user obtains intelligent terminal system upgrade package using network with on-demand, easy extension way,
And cloud upgrading is carried out by FOTA, complete system reparation and optimization.
With the development of Internet of Things, the commercialization of NB-IoT technology, Internet of Things will welcome more extensive development, and Internet of Things is set
It is standby to reach trillion ranks, and the system upgrade of the internet of things equipment of these magnanimity will be an extremely important and urgent need
It asks.
Existing terminal device, generally operation Android, IOS etc., memory and FLASH are often calculated with GB, bandwidth
(such as 4G) is general to pass through complicated upper-layer protocol such as http/sync when designing its FOTA system with tens MB calculating
The technologies such as ML are realized.And the system of Internet of Things, memory maximum is calculated with several hundred KB, FLASH is calculated with several MB, and bandwidth is with hundred
KBPS magnitude calculates, and the FOTA scheme of traditional terminal device takes http agreement, and upper layer sometimes will also take Sync ML to assist
View, can occupy too many bandwidth, memory and FLASH, not be suitable for Internet of things system.
Summary of the invention
In order to solve the shortcomings of the prior art, the purpose of the present invention is to provide a kind of efficient Internet of Things FOTA to upgrade
Method, the reading and writing data technology of transmission technology and FLASH block boundary based on udp protocol extension, so that Internet of things system
It is less, more efficient that FOTA upgrades resource occupation.
To achieve the above object, the method for efficient Internet of Things FOTA upgrading provided by the invention, comprising the following steps:
It is marked based on udp protocol explosion command, the lateral server side of terminal sends notice FLASH block size order data
Packet, and receive the version size command packet of server side transmission；
Server side receives the ready command packet that terminal side is sent, and sends data packet to terminal side.
Further, the data packet, including, UDP, Command Flags, order and command context；The number
According to data packet, including, UDP, data markers, data block sequence number and edition data.
Further, the method further includes following steps: terminal side discovery has unreceived data packet, then
The block command data packet that notice retransmits is sent to server side；The data packet not transmitted is sent to terminal by server end
Side.
Further, the method further includes following steps: terminal side receives total data data packet, then to clothes
Business device side, which transmits and receives, completes command packet, and entire transmission process terminates.
Further, described to be marked based on udp protocol explosion command, the lateral server side of terminal sends notice FLASH block
Size command packet, and the step of receiving the version size command packet of server side transmission, comprising:
FLASH block is cut according to memory situation in terminal side, the size of the data packet to be transmitted of determination；
It is marked based on udp protocol explosion command, the lateral server side of terminal sends notice FLASH block size order data
Packet；
Server side carries out the coding of subpackage and packet serial number according to the size of determining data packet to version；Server side to
Terminal side sends version size command packet；
The lateral server side transmitter ready command packet of terminal.
Further, the notice FLASH block size command packet that the terminal side is sent, including, UDP, order mark
Note, CMD_BLOCK_SIZE and block size；Wherein, CMD_BLOCK_SIZE indicates that terminal side notifies server side FLASH block
Size.
Further, the version size command packet that the server side is sent, including, UDP, Command Flags,
CMD_VERSION_LEN and version size；Wherein, CMD_VERSION_LEN indicates the version of server side notice terminal side
Size.
Further, the ready command packet that the terminal side is sent, including, UDP, Command Flags, CMD_
READY_OK；Wherein, CMD_READY_OK indicates that terminal side notice server side is ready for receiving data.
Further, the block command data packet that the notice that the terminal side is sent retransmits, including, UDP, Command Flags,
CMD_RETRANS_VALID, and retransmit block serial number；Wherein, CMD_RETRANS_VALID indicates that terminal notification service is thought highly of
It passes.
Further, what the terminal side was sent is completed data transfer command data packet, including, UDP, order mark
Note, CMD_FINISH；Wherein, CMD_FINISH indicates that terminal side data finishes receiving.
The method of efficient Internet of Things FOTA upgrading of the invention, based on the transmission technology of udp protocol extension, compare with
TCP, efficiency of transmission is high, does not transmit the limitation of packet size, overcomes FOTA updating protocol existing in the prior art to Internet of Things
Network termination memory, FLASH resource, bandwidth resources occupy too many problem and defect；For the random of traditional FLASH read-write
Property, often occur it is cross-border, cause small part data also can across FLASH block, read and write defect often, the present invention is based on
The reading and writing data technology of FLASH block boundary promotes FLASH read-write efficiency, solves the problems, such as FLASH read-write efficiency, both accelerated reading
Writing rate decreases FLASH read-write number, improves the service life of FLASH.
Bandwidth is saved compared with prior art FOTA Data Interchange Technology using the method for the invention, improves liter
Stage efficiency improves the read-write efficiency and its service life of FLASH, is more applicable for the small memory, low of internet-of-things terminal system
The characteristics such as bandwidth.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, and with it is of the invention
Embodiment together, is used to explain the present invention, and is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the method flow diagram of efficient Internet of Things FOTA upgrading according to the present invention；
Fig. 2 is udp protocol growth data packet structure schematic diagram according to the present invention；
Fig. 3 is udp protocol explosion command packet structure schematic diagram according to the present invention；
Fig. 4 is server side version according to the present invention and terminal side FLASH packet serial number correspondence diagram；
Fig. 5 is sent to server side for terminal side according to the present invention and FLASH block size order data pack arrangement is notified to show
It is intended to；
Fig. 6 is that server side according to the present invention notifies terminal side version size command packet structural schematic diagram；
Fig. 7 is the block command packet structure schematic diagram that terminal side according to the present invention is retransmitted to server side notice；
Fig. 8 is that terminal side according to the present invention notifies server side to be ready for receiving the signal of data command packet structure
Figure；
Fig. 9 is that terminal side according to the present invention notifies server side that the signal of data transfer command packet structure is completed
Figure.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Fig. 1 is the method flow diagram of efficient Internet of Things FOTA upgrading according to the present invention, below with reference to Fig. 1, to this hair
The method of bright efficient Internet of Things FOTA upgrading is described in detail.
Firstly, being based on udp protocol, explosion command and data markers in step 101, Command Flags indicate that subsequent is order
With the content of order, data markers indicate that subsequent content is data block sequence number and data；Wherein, the order of extension, for solving
Terminal and server negotiates block size, re-transmission, the functions such as whether completes.
Fig. 2 is udp protocol growth data packet structure schematic diagram according to the present invention, as shown in Fig. 2, of the invention
Udp protocol explosion command data packet, including, UDP, data markers, data block sequence number and edition data.
Fig. 3 is udp protocol explosion command packet structure schematic diagram according to the present invention, as shown in figure 3, of the invention
Udp protocol explosion command data packet, including, UDP, Command Flags, order and command context.
In step 102, after terminal side and server establish connection, negotiate the data package size of transmission, data package size by
Terminal side is determining according to memory situation, generally 1/2,1/4,1/8 etc. of the size of FLASH block or FLASH block, and terminal side passes through
Its data package size to be transmitted of messaging service device side.
In the present invention, if FLASH block size is excessive, it will lead to terminal Out of Memory, FLASH block can be carried out by
Cut according to 1/2,1/4 or 1/8 etc., that is, the data package size transmitted based on block size 1/2,1/4,1/8 etc., with solve
Terminal side memory is too small and problem that FLASH block is too big.
Fig. 5 is sent to server side for terminal side according to the present invention and FLASH block size order data pack arrangement is notified to show
It is intended to, as shown in figure 5, terminal side is sent to server side notice FLASH block size command packet, including, UDP, order
Label, CMD_BLOCK_SIZE and block size, wherein CMD_BLOCK_SIZE indicates that terminal side notifies server side FLASH
Block size.
In step 103, server side carries out subpackage to version according to FLASH block size, while notifying terminal side version total
Size, so that terminal calculates the serial number of the last one data packet.
In the present invention, server side encodes the size of version according to FLASH block size, and transmission when transmits number
According to the data packet of block size and the serial number of data packet.Fig. 4 is server side version according to the present invention and terminal side FLASH packet sequence
Number correspondence diagram, as shown in figure 4, the size of version is Z, the size of each data packet be FLASH block size X or
FLASH block 1/2,1/4 or 1/8 etc., then the packet serial number code of version is 0,1,2 ... | Z/X | (X may be 1/2*X or 1/4*
X etc.), with the packet serial number code of version, one-to-one correspondence gets up FLASH packet serial number code.
Fig. 6 is that server side according to the present invention notifies terminal side version size command packet structural schematic diagram, such as Fig. 6
Shown, server side of the invention notifies terminal side version size command packet, including, UDP, Command Flags, CMD_
VERSION_LEN and block version size, wherein CMD_VERSION_LEN indicates that the version of server side notice terminal side is big
It is small.
In step 104, the notice of terminal side answering server side one, expression receives packet size, and server side can start
Data transmission.Fig. 8 is that terminal side according to the present invention notifies server side to be ready for reception data command packet structure and show
It is intended to, as shown in figure 8, terminal side notice server side receives the ready command packet of data, including, UDP, order
Label, CMD_READY_OK, wherein CMD_READY_OK indicates that terminal side notice server side is ready for receiving data.
In step 105, data packet is transferred to terminal side by server side, includes version number in the data packet
According to, packet serial number and the packet serial number data.In transmission process, terminal side, terminal side are sent to after server side filling packet serial number
The data packet received is parsed, according to the packet serial number of parsing, the data inside data packet are written the FLASH of corresponding serial number
In space, in this process, the packet of server transport does not need to be transmitted in sequence, out-of-order transfer is supported, as long as most
All data packets are all sent to terminal side eventually.
In step 106, terminal side checks whether after receiving the last one data packet and receives entire packet, if
It is then to enter in next step, otherwise go to step 108.
In step 107, terminal side, which transmits and receives, completes order, and entire transmission process terminates.Fig. 9 is end according to the present invention
Data transfer command packet structure schematic diagram is completed in end side notice server side, as shown in figure 9, terminal side of the invention is logical
Know that data transfer command data packet is completed in server side, including, UDP, Command Flags, CMD_FINISH, wherein CMD_
FINISH indicates that terminal side data finishes receiving.
In step 108, terminal side, which is sent, retransmits order to server side, and server side receives the retransmission request of terminal side
Afterwards, it carries out retransmitting the data packet that terminal side does not receive at once.Fig. 7 is that server side notice weight is given in terminal side according to the present invention
The block command packet structure schematic diagram of biography, as shown in fig. 7, terminal side is sent to the block command number that the notice of server side retransmits
According to packet, including, UDP, Command Flags, CMD_RETRANS_VALID, and retransmit block serial number, wherein CMD_RETRANS_
VALID indicates that terminal notification server retransmits.
Invention defines internet-of-things terminal sides during carrying out edition upgrading, the tool that terminal side and server side use
The technology of body transmission process and the write-in of method and terminal versions, those of ordinary skill in the art will appreciate that: the foregoing is merely
The preferred embodiment of the present invention is not intended to restrict the invention, although having carried out in detail to the present invention with reference to the foregoing embodiments
Thin explanation can still carry out the technical solution that foregoing embodiments are recorded for those skilled in the art
Modification or equivalent replacement of some of the technical features.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method of efficient Internet of Things FOTA upgrading, comprising the following steps:
It being marked based on udp protocol explosion command, the lateral server side of terminal sends notice FLASH block size command packet, and
Receive the version size command packet that server side is sent；
Server side receives the ready command packet that terminal side is sent, and sends data packet to terminal side.
2. the method for efficient Internet of Things FOTA upgrading according to claim 1, which is characterized in that the command packet,
Including UDP, Command Flags, order and command context；The data packet, including, UDP, data markers, data
Block serial number and edition data.
3. the method for efficient Internet of Things FOTA upgrading according to claim 1, which is characterized in that the method is further wrapped
Include following steps: terminal side has detected unreceived data packet, then sends the block command that notice retransmits to server side
Data packet；The data packet not transmitted is sent to terminal side by server end.
4. the method for efficient Internet of Things FOTA upgrading according to claim 1, which is characterized in that the method is further wrapped
Include following steps: terminal side receives total data data packet, then transmits and receives to server side and complete command packet, entirely
Transmission process terminates.
5. the method for efficient Internet of Things FOTA upgrading according to claim 1, which is characterized in that described to be based on udp protocol
Explosion command label, the lateral server side of terminal send notice FLASH block size command packet, and receive server side transmission
Version size command packet the step of, comprising:
FLASH block is cut according to memory situation in terminal side, the size of the data packet to be transmitted of determination；
It is marked based on udp protocol explosion command, the lateral server side of terminal sends notice FLASH block size command packet；
Server side carries out the coding of subpackage and packet serial number according to the size of data packet to version；Server side is sent to terminal side
Version size command packet；
The lateral server side transmitter ready command packet of terminal.
6. the method for efficient Internet of Things FOTA upgrading according to claim 1, which is characterized in that the terminal side was sent
Notify FLASH block size command packet, including, UDP, Command Flags, CMD_BLOCK_SIZE and block size；Wherein,
CMD_BLOCK_SIZE indicates that terminal side notifies server side FLASH block size.
7. the method for efficient Internet of Things FOTA upgrading according to claim 1, which is characterized in that the server side is sent
Version size command packet, including, UDP, Command Flags, CMD_VERSION_LEN and version size；Wherein,
CMD_VERSION_LEN indicates the version size of server side notice terminal side.
8. the method for efficient Internet of Things FOTA upgrading according to claim 1, which is characterized in that the terminal side was sent
Ready command packet, including, UDP, Command Flags, CMD_READY_OK；Wherein, CMD_READY_OK is indicated eventually
End side notice server side is ready for receiving data.
9. the method for efficient Internet of Things FOTA upgrading according to claim 3, which is characterized in that the terminal side was sent
Notify the block command data packet retransmitted, including, UDP, Command Flags, CMD_RETRANS_VALID, and retransmit block serial number；
Wherein, CMD_RETRANS_VALID indicates that terminal notification server retransmits.
10. the method for efficient Internet of Things FOTA upgrading according to claim 4, which is characterized in that the terminal side is sent
Be completed data transfer command data packet, including, UDP, Command Flags, CMD_FINISH；Wherein, CMD_FINISH table
Show that terminal side data finishes receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710610301.XA CN109298879A (en) | 2017-07-25 | 2017-07-25 | A kind of method of efficient Internet of Things FOTA upgrading |
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| CN201710610301.XA CN109298879A (en) | 2017-07-25 | 2017-07-25 | A kind of method of efficient Internet of Things FOTA upgrading |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110708205A (en) * | 2019-12-16 | 2020-01-17 | 蘑菇物联技术（深圳）有限公司 | Method and system for performing FOTA (firmware over the air) on equipment through gateway |
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