CN103347095A - Wireless firmware updating method used in vehicle networking system - Google Patents
Wireless firmware updating method used in vehicle networking system Download PDFInfo
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- CN103347095A CN103347095A CN2013103098914A CN201310309891A CN103347095A CN 103347095 A CN103347095 A CN 103347095A CN 2013103098914 A CN2013103098914 A CN 2013103098914A CN 201310309891 A CN201310309891 A CN 201310309891A CN 103347095 A CN103347095 A CN 103347095A
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Abstract
The invention discloses a wireless firmware updating method used in a vehicle networking system. According to the wireless firmware updating method used in the vehicle networking system, firmware file information is sent to an intelligent terminal on a remote server side after a remote server and the intelligent terminal are connected in a wireless mode, the intelligent terminal initializes a file block number indexing area by means of a set data blocking length according to the firmware file information sent by the remote server and returns the data blocking length to the remote server, the remote server carries out block-cutting on firmware according to the returned blocking length, the intelligent terminal requests the remote server to issue a data packet according to the block number indexing area, returns a firmware receiving accomplishment instruction to the remote server, and writes a firmware updating record, the intelligent vehicle hiring terminal writes an updating mark, then the terminal is rebooted automatically, a terminal bootstrap program detects the upgrading mark, the sent firmware is written into a program space if upgrading is needed, the upgrading mark is erased after the writing of the firmware is accomplished, and then the terminal is rebooted automatically to achieve firmware upgrading.
Description
Technical field
The present invention relates to the technical field of car networked system, particularly the radio firmware update method in a kind of car networked system.
Background technology
At present, be installed in outdoor traditional embedded device, when upgrading firmware, great majority all need the scene to upgrade, the wasting manpower and material resources, and small part equipment can carry out remote update, but the method that realizes is multifarious.Special-purpose fever writes refresh routine: the technical staff, carry computer, dedicated program fever writes, go on-the-spot the renewal, in the time of mostly, also need to open cabinet and just can connect the dedicated program fever writes.Advantage: can handle the problem that all upgrade failure, deficiency: need the professional and technical personnel, go to the scene to open the renewal of the equipment program.USB flash disk refresh routine: after making firmware, firmware is put USB flash disk, take on-the-spot refresh routine, do not needing the field mouth of USB mouth, need the extra USB of reservation mouth.SD card refresh routine: the same with the USB flash disk update mode, just firmware transmits the medium difference.Remote update program: after the mode download firmware such as use FTP, directly upgrade deficiency: scarcely support the breakpoint transmission function, have no progeny in the transmission and need reconnect, restart to upgrade.
Summary of the invention
The shortcoming that the objective of the invention is to overcome prior art provides the radio firmware update method in a kind of car networked system with not enough.
Purpose of the present invention is achieved through the following technical solutions:
Radio firmware update method in a kind of car networked system of the present invention comprises the steps:
S1, remote server issue the firmware update instruction;
S2, intelligent terminal receive update instruction, and return the packet branch block length that will receive;
The packet branch block length that S3, remote server return according to terminal is divided firmware, and issues the firmware block count;
S4, intelligent terminal initialization data receive mapping table and firmware storage areas;
S5, intelligent terminal receive mapping table according to data and calculate the firmware data Bale No., and to remote server request for data bag;
S6, remote server issue the packet of terminal to apply;
S7, terminal are received the packet that issues, and verification is correct, press Bale No. and calculate package location, toward the firmware storage areas padding data;
S8, remote server storage firmware downloads are finished record;
Whether S9, intelligent terminal inspection need firmware updating, if then write the firmware upgrade sign, automatically restarting equipment;
S10, when intelligent terminal powers on, before boot enters application program, can detect upgrading sign, as the needs upgrading, the firmware of having downloaded being write the terminal program space, wiping the upgrading sign, automatic restarting equipment, upgrading is finished.
Preferably, step S3 is specially: at the remote server end firmware file information is handed down to intelligent terminal, the firmware file information that intelligent terminal issues according to remote server is divided block length initialization files piece index area by the data block that arranges, and described firmware file is binary file.
Preferably, in the step 3, the concrete grammar that the packet branch block length that remote server returns according to terminal is divided firmware is: binary file is divided into isometric packet according to packet branch block length, is reduced into a complete binary file according to Bale No. after being issued to intelligent terminal.
Preferably, among the step S6, comprise further that intelligent terminal comes and goes the request for data bag, finishes up to download.
Preferably, among the step S7, toward the firmware storage areas padding data time, data are received in the mapping table corresponding Bale No. be set to and receive bag, received bag and do not repeated application; The packet that step S5, S6, the application of S7 alternate cycles are not applied for.
Preferably, intelligent terminal can regularly be inquired about the firmware upgrade sign, if downloaded firmware, needs upgrading, then writes the upgrading sign, and upgrading sign, data mapping tables, firmware storage areas are stored in flash, and power down is not lost.
Preferably, among the step S5, intelligent terminal according to the concrete steps that data reception mapping table calculates the firmware data Bale No. is:
In S51, the mapping table one, representative needs a packet of application;
S52, Bale No.=N*8+i, wherein N is which byte (byte) of data mapping tables, i is which position (bit) of this byte.
S53, this position (bit) are that 1 these bag data of expression do not issue, and this position (bit) is that 0 these bag data of expression have issued successfully;
S54, firmware storage areas packet are filled address computation: fill initial address=base address+Bale No. * packet and divide block length; Filling length is data packet length.
The present invention has following advantage and effect with respect to prior art:
1, method of the present invention realizes simple, the firmware that is particularly suitable for small-scale operating system or does not have the low profile edge equipment of operating system upgrades, and supports breakpoint transmission, even equipment is restarted, suddenly outage can be downloaded the firmware of not downloaded after reconnecting server again; Update method of the present invention can be upgraded firmware simultaneously on a large scale, and the reliability height.
2, breakpoint transmission principle of the present invention: when firmware begins to download, intelligent terminal is not lost in flash(outage) record file information table and (comprised firmware length, firmware data packet subpackage number, firmware begins download time etc.), receive data mapping tables (those are not downloaded to have recorded firmware data packet, and those are downloaded), so no matter go offline, or after reconnecting up after the outage, can also continue to download the packet that not download is finished.
Description of drawings
Fig. 1 is the flow chart of the radio firmware update method in the car networked system of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the radio firmware update method in the present embodiment car networked system comprises the steps:
S1, remote server issue the firmware update instruction;
S2, intelligent terminal receive update instruction, and return the packet branch block length that will receive;
The packet branch block length that S3, remote server return according to terminal is divided firmware, and issues the firmware block count;
S4, intelligent terminal initialization data receive mapping table and firmware storage areas;
S5, intelligent terminal receive mapping table according to data and calculate the firmware data Bale No., and to remote server request for data bag;
S6, remote server issue the packet of terminal to apply;
S7, terminal are received the packet that issues, and verification is correct, press Bale No. and calculate package location, toward the firmware storage areas padding data;
S8, remote server storage firmware downloads are finished record;
Whether S9, intelligent terminal inspection need firmware updating, if then write the firmware upgrade sign, automatically restarting equipment;
S10, boot detect upgrading and indicate, as the needs upgrading, the firmware of downloading are write the terminal program control, wipe the upgrading sign, automatic restarting equipment, and upgrading is finished.
Step S3 is specially: at the remote server end firmware file information is handed down to intelligent terminal, the firmware file information that intelligent terminal issues according to remote server, divide block length initialization files piece index area by the data block that arranges, described firmware file is binary file.
The concrete grammar that the packet branch block length that remote server returns according to terminal is divided firmware is: binary file is divided into isometric packet according to packet branch block length, is reduced into a complete binary file according to Bale No. after being issued to intelligent terminal.
Among the step S6, comprise further that intelligent terminal comes and goes the request for data bag, finishes up to download.
Among the step S7, toward the firmware storage areas padding data time, data are received in the mapping table corresponding Bale No. be set to and receive bag, received bag and do not repeated application; The packet that step S5, S6, the application of S7 alternate cycles are not applied for.
Intelligent terminal can regularly be inquired about the firmware upgrade sign, if downloaded firmware, needs upgrading, then writes the upgrading sign, and upgrading sign, data mapping tables, firmware storage areas are stored in flash, and power down is not lost.
Among the step S5, intelligent terminal according to the concrete steps that data reception mapping table calculates the firmware data Bale No. is:
In S51, the mapping table one, representative needs a packet of application, and the data mapping tables form is as shown in table 1;
S52, Bale No.=N*8+i, wherein N is which byte (byte) of data mapping tables, i is which position (bit) of this byte.
S53, this position (bit) are that 1 these bag data of expression do not issue, and this position (bit) is that 0 these bag data of expression have issued successfully;
S54, firmware storage areas packet are filled address computation: fill initial address=base address+Bale No. * packet and divide block length; Filling length is data packet length, and firmware upgrade associated storage structural table 2 is described.
Table 1
| ? | Bit7 | Bit6 | Bit5 | Bit4 | Bit3 | Bit2 | Bit1 | Bit0 |
| Byte0 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Byte1 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| Byte2 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| …… | ? | ? | ? | ? | ? | ? | ? | ? |
| ByteN | N*8+7 | N*8+6 | N*8+5 | N*8+4 | N*8+3 | N*8+2 | N*8+1 | N*8+0 |
Table 2
| The address distributes | Length (byte) | Purposes | Remarks |
| 0x00002000 | 4K | The upgrade information memory block comprises that data receive mapping table | ? |
| 0x00003000 | 256K | The firmware downloads memory block | ? |
In the table 2, the distribution of above address, the division of the length in each district is the division of application-specific, is not necessarily to divide according to the form in the table 2, can adjust according to the situation of reality.
The present invention will be described below in conjunction with concrete execution mode:
1, name is called the binary file of a.bin, and size is 5000 bytes, and packet branch block length is 256 bytes, subpackage number=5000/256 then, subpackage number=20; The 0xFF of benefit in the back of less than one bag supplies a bag.
2, the subpackage number that issues according to server limits the Bale No. scope, calculates to such an extent that the subpackage number is 20 above; Then calculate the packet numbers that to apply for according to mapping and be defined as 0～19; It is invalid to exceed.
3, program is from the original position sequential scanning data mapping tables of mapping table, and scanning this position (bit) is 1, and by formula the Bale No. that calculates of Bale No.=N*8+i in 0～19 scope, then this Bale No. is effective, then apply for this bag data to server, this position (bit) is 0, do not apply for;
4, whether after intelligent terminal is received the data in server bag, detecting these bag data is the data that need application, detects by then being filled into the firmware data memory block, and mapping table corresponding (bit) is set to 0, shows that these bag data issue successfully.
5, scan-data bag mapping table, Bale No. are that 0～19 corresponding position (bit) all is 0, and the expression firmware downloads is finished.
Above-described embodiment is preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. the radio firmware update method in the car networked system is characterized in that, comprises the steps:
S1, remote server issue the firmware update instruction;
S2, intelligent terminal receive update instruction, and return the packet branch block length that will receive;
The packet branch block length that S3, remote server return according to terminal is divided firmware, and issues the firmware block count;
S4, intelligent terminal initialization data receive mapping table and firmware storage areas;
S5, intelligent terminal receive mapping table according to data and calculate the firmware data Bale No., and to remote server request for data bag;
S6, remote server issue the packet of terminal to apply;
S7, terminal are received the packet that issues, and verification is correct, press Bale No. and calculate package location, toward the firmware storage areas padding data;
S8, remote server storage firmware downloads are finished record;
Whether S9, intelligent terminal inspection need firmware updating, if then write the firmware upgrade sign, automatically restarting equipment;
S10, when intelligent terminal powers on, before boot enters application program, can detect upgrading sign, as the needs upgrading, the firmware of having downloaded being write the terminal program space, wiping the upgrading sign, automatic restarting equipment, upgrading is finished.
2. the radio firmware update method in a kind of car networked system according to claim 1, it is characterized in that, step S3 is specially: at the remote server end firmware file information is handed down to intelligent terminal, the firmware file information that intelligent terminal issues according to remote server, divide block length initialization files piece index area by the data block that arranges, described firmware file is binary file.
3. the radio firmware update method in a kind of car networked system according to claim 1, it is characterized in that, in the step 3, the concrete grammar that the packet branch block length that remote server returns according to terminal is divided firmware is: binary file is divided into isometric packet according to packet branch block length, is reduced into a complete binary file according to Bale No. after being issued to intelligent terminal.
4. the radio firmware update method in a kind of car networked system according to claim 1 is characterized in that, among the step S6, further comprises, intelligent terminal comes and goes the request for data bag, finishes up to download.
5. the radio firmware update method in a kind of car networked system according to claim 1, it is characterized in that, among the step S7, in the time of toward the firmware storage areas padding data, data are received in the mapping table corresponding Bale No. be set to and receive bag, received bag and do not repeated application; The packet that step S5, S6, the application of S7 alternate cycles are not applied for.
6. the radio firmware update method in a kind of car networked system according to claim 1, it is characterized in that, intelligent terminal can regularly be inquired about the firmware upgrade sign, if downloaded firmware, need upgrading, then write the upgrading sign, upgrading sign, data mapping tables, firmware storage areas are stored in flash, and power down is not lost.
7. the radio firmware update method in a kind of car networked system according to claim 1 is characterized in that, among the step S5, intelligent terminal according to the concrete steps that data reception mapping table calculates the firmware data Bale No. is:
In S51, the mapping table one, representative needs a packet of application;
S52, Bale No.=N*8+i, wherein N is which byte (byte) of data mapping tables, i is which position (bit) of this byte;
S53, this position (bit) are that 1 these bag data of expression do not issue, and this position (bit) is that 0 these bag data of expression have issued successfully;
S54, firmware storage areas packet are filled address computation: fill initial address=base address+Bale No. * packet and divide block length; Filling length is data packet length.
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| CN103713929A (en) * | 2013-12-31 | 2014-04-09 | 南京新奕天科技有限公司 | Remote updating method based on on-chip Flash embedded system |
| CN103744712A (en) * | 2014-01-28 | 2014-04-23 | 北京经纬恒润科技有限公司 | Method and device for updating application program |
| WO2015196479A1 (en) * | 2014-06-27 | 2015-12-30 | 华为技术有限公司 | Program data updating method and device |
| CN105468383A (en) * | 2014-07-21 | 2016-04-06 | 上海庆科信息技术有限公司 | Data upgrading method and device |
| CN105630537A (en) * | 2014-11-20 | 2016-06-01 | 现代自动车株式会社 | System and method for firmware update of vehicle |
| CN105808285A (en) * | 2015-01-21 | 2016-07-27 | 福特全球技术公司 | Vehicle control update methods and systems |
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| CN106126293A (en) * | 2016-06-30 | 2016-11-16 | 深圳市合元科技有限公司 | Electronic cigarette firmware upgrade method and system |
| CN106873943A (en) * | 2017-01-12 | 2017-06-20 | 深圳市优必选科技有限公司 | Firmware upgrading method of embedded system |
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| CN112269692A (en) * | 2020-11-25 | 2021-01-26 | 杭州视洞科技有限公司 | Remote upgrading power-off self-recovery mechanism for network camera |
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| CN113760333A (en) * | 2021-09-16 | 2021-12-07 | 海宁奕斯伟集成电路设计有限公司 | Software upgrading method and device, electronic equipment and computer readable storage medium |
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