CN111221556A - Method and system for remotely upgrading RSU mirror image - Google Patents
Method and system for remotely upgrading RSU mirror image Download PDFInfo
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- CN111221556A CN111221556A CN202010022461.4A CN202010022461A CN111221556A CN 111221556 A CN111221556 A CN 111221556A CN 202010022461 A CN202010022461 A CN 202010022461A CN 111221556 A CN111221556 A CN 111221556A
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a method and a system for remotely upgrading an RSU mirror image, which comprise the following steps: step M1: the RSU acquires the header information of the mirror image file; step M2: checking the header information MD5 attribute; judging the validity of the header information of the image file according to the MD5 attribute, and when the header information is invalid, acquiring the header file information again; when the header information is valid, performing step M3; step M3: traversing the entry files in the header information, calculating the MD5 attribute of the local file according to the name attribute in the entry files and the path attribute in the file system, comparing the MD5 attribute of the header information with the MD5 attribute of the local file, judging and carrying out remote upgrading; step M4: after the upgrade is completed, the RSU is restarted; the entry file in the header information comprises a name attribute, a path attribute in a file system and an MD5 check value attribute. The invention saves 4G/5G flow used in the upgrading process and improves the upgrading efficiency.
Description
Technical Field
The invention relates to the field of remote upgrading of products, in particular to a method and a system for remotely upgrading an RSU (remote subscriber Unit) mirror image, and more particularly to a method and a system for partially remotely upgrading an RSU mirror image.
Background
4G/5G telecommunications, which refers to the electronic transmission of voice, data, facsimile, image, audio, video and other information between connected systems through the use of analog or digital signal modulation techniques. The MD5 checksum (checksum) checks the correctness of the data by performing a hash operation on the received transmitted data. The cURL network tool breakpoint resume cURL is a file transfer tool cloud server (ECS) which works under a command line by using URL grammar, and is a computing service which is simple, efficient, safe and reliable and has elastically scalable processing capacity. The management mode is simpler and more efficient than that of a physical server. A user can rapidly create or release any plurality of cloud servers without purchasing hardware in advance.
Patent document CN109710295A (application number: 201811403075.9) discloses a secure and reliable FPGA remote upgrade method, which includes: firstly, executing a Bootrom in a safety mode, entering the safety mode, and under the safety mode, receiving updated data remotely transmitted by a field bus by a system, and updating a storage medium containing mirror image data of a system in a working mode; after the working mode fsbl is started, loading a mirror image required by subsequent starting according to the guidance of the working mode partition information table; and modifying the fsbl of the working mode image, and adding a function of searching and loading the image from the specified type of storage medium into the fsbl.
Patent document CN107391143A (application number: 201710624039.4) discloses a T-Box remote upgrade method, which includes the following steps: (1) inputting a VIN (vehicle identification code) in a server to obtain an encrypted image file, and copying the image file to a specified directory of an SD card; (2) installing the SD card into a vehicle control system, verifying the integrity of the image file by the T-Box with a built-in key algorithm, and decrypting the image file if the integrity of the image file is qualified; (3) and comparing the key obtained after decrypting the image file with a key stored in the factory, if the key is consistent, the upgrade is allowed, otherwise, the upgrade is not performed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for remotely upgrading an RSU image.
The method for remotely upgrading the RSU image provided by the invention comprises the following steps:
step M1: the RSU acquires the header information of the mirror image file;
step M2: checking the header information MD5 attribute; judging the validity of the header information of the image file according to the MD5 attribute, and when the header information is invalid, acquiring the header file information again; when the header information is valid, performing step M3;
step M3: traversing the entry files in the header information, calculating the MD5 attribute of the local file according to the name attribute in the entry files and the path attribute in the file system, comparing the MD5 attribute of the header information with the MD5 attribute of the local file, judging and carrying out remote upgrading;
step M4: after the upgrade is completed, the RSU is restarted;
the entry file in the header information comprises a name attribute, a path attribute in a file system and an MD5 check value attribute.
Preferably, the step M1 includes: and the RSU acquires the image file head information of the previous preset value of the image file from the cloud server according to the curl breakpoint continuous transmission through 4G/5G.
Preferably, the step M1 includes: the header information includes: the header information stores each file attribute, namely, attributes required by all upgrades in the file system, including an entry file, an execution and ownership attribute of the file, a start offset attribute of the file in the mirror image file, and a file size attribute.
Preferably, the step M3 includes:
step M3.1: acquiring an entry file in the header information, judging whether the entry file in the header information is empty, and restarting the RSU when the entry file is empty; when the entry file is not empty, acquiring the entry file;
step M3.2: calculating the MD5 attribute of the local file according to the name attribute of the acquired header information entry file and the path attribute in the file system;
step M3.3: comparing the MD5 attribute of the header information with the MD5 attribute of the local file, deleting the current entry file without remote upgrade when the Md5 attribute of the header information is the same as the Md5 attribute of the local file, and returning to the step M3.1; and when the Md5 attribute of the header information is different from the Md5 attribute of the local file, remotely upgrading the file, deleting the header information of the current entry file after upgrading, and returning to the step M3.1.
Preferably, the remote upgrade in step M3.3 includes: and obtaining the file content according to the initial offset attribute and the file size attribute of the file in the header information in the mirror image file, and copying the file content to a local directory to finish the upgrading of the file.
The invention provides a remote upgrading RSU mirror image system, comprising:
module M1: the RSU acquires the header information of the mirror image file;
module M2: checking the header information MD5 attribute; judging the validity of the header information of the image file according to the MD5 attribute, and when the header information is invalid, acquiring the header file information again; when the header information is valid, triggering the module M3 to execute;
module M3: traversing the entry files in the header information, calculating the MD5 attribute of the local file according to the name attribute in the entry files and the path attribute in the file system, comparing the MD5 attribute of the header information with the MD5 attribute of the local file, judging and carrying out remote upgrading;
module M4: after the upgrade is completed, the RSU is restarted;
the entry file in the header information comprises a name attribute, a path attribute in a file system and an MD5 check value attribute.
Preferably, said module M1 comprises: and the RSU acquires the image file head information of the previous preset value of the image file from the cloud server according to the curl breakpoint continuous transmission through 4G/5G.
Preferably, said module M1 comprises: the header information includes: the header information stores each file attribute, namely, attributes required by all upgrades in the file system, including an entry file, an execution and ownership attribute of the file, a start offset attribute of the file in the mirror image file, and a file size attribute.
Preferably, said module M3 comprises:
module M3.1: acquiring an entry file in the header information, judging whether the entry file in the header information is empty, and restarting the RSU when the entry file is empty; when the entry file is not empty, acquiring the entry file;
module M3.2: calculating the MD5 attribute of the local file according to the name attribute of the acquired header information entry file and the path attribute in the file system;
module M3.3: comparing the MD5 attribute of the header information with the MD5 attribute of the local file, deleting the current entry file without remote upgrade when the Md5 attribute of the header information is the same as the Md5 attribute of the local file, and returning to the module M3.1; and when the Md5 attribute of the header information is different from the Md5 attribute of the local file, remotely upgrading the file, deleting the header information of the current entry file after upgrading, and returning to the module M3.1.
Preferably, the remote upgrade in the module M3.3 comprises: and obtaining the file content according to the initial offset attribute and the file size attribute of the file in the header information in the mirror image file, and copying the file content to a local directory to finish the upgrading of the file.
Compared with the prior art, the invention has the following beneficial effects:
1. 4G/5G flow used in the upgrading process is saved;
2. and the upgrading efficiency is improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a flow chart of the present invention;
fig. 2 is a network topology diagram.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The method for remotely upgrading the RSU image provided by the invention comprises the following steps:
step M1: the RSU acquires the header information of the mirror image file; the RSU is a road side unit;
specifically, the step M1 includes: and the RSU acquires the image file head information of the previous preset value of the image file from the cloud server according to the curl breakpoint continuous transmission through 4G/5G.
Specifically, the step M1 includes: the header information includes: the header information stores each file attribute, namely, attributes required by all upgrades in the file system, including an entry file, an execution and ownership attribute of the file, a start offset attribute of the file in the mirror image file, and a file size attribute.
Step M2: checking the header information MD5 attribute; judging the validity of the header information of the image file according to the MD5 attribute, and when the header information is invalid, acquiring the header file information again; when the header information is valid, performing step M3;
step M3: traversing the entry files in the header information, calculating the MD5 attribute of the local file according to the name attribute in the entry files and the path attribute in the file system, comparing the MD5 attribute of the header information with the MD5 attribute of the local file, judging and carrying out remote upgrading;
specifically, the step M3 includes:
step M3.1: acquiring an entry file in the header information, judging whether the entry file in the header information is empty, and restarting the RSU when the entry file is empty; when the entry file is not empty, acquiring the entry file;
step M3.2: calculating the MD5 attribute of the local file according to the name attribute of the acquired header information entry file and the path attribute in the file system;
step M3.3: comparing the MD5 attribute of the header information with the MD5 attribute of the local file, deleting the current entry file without remote upgrade when the Md5 attribute of the header information is the same as the Md5 attribute of the local file, and returning to the step M3.1; and when the Md5 attribute of the header information is different from the Md5 attribute of the local file, remotely upgrading the file, deleting the header information of the current entry file after upgrading, and returning to the step M3.1.
More specifically, the remote upgrade in step M3.3 includes: and acquiring the file content according to the initial offset attribute and the file size attribute of the file in the header information in the mirror image file, downloading a specific file, such as a binary file, and copying the specific file to a local directory to finish the upgrading of the file.
Step M4: after the upgrade is completed, the RSU is restarted;
the entry file in the header information comprises a name attribute, a path attribute in a file system and an MD5 check value attribute.
The invention provides a remote upgrading RSU mirror image system, comprising:
module M1: the RSU acquires the header information of the mirror image file; the RSU is a road side unit;
specifically, the module M1 includes: and the RSU acquires the image file head information of the previous preset value of the image file from the cloud server according to the curl breakpoint continuous transmission through 4G/5G.
Specifically, the module M1 includes: the header information includes: the header information stores each file attribute, namely, attributes required by all upgrades in the file system, including an entry file, an execution and ownership attribute of the file, a start offset attribute of the file in the mirror image file, and a file size attribute.
Module M2: checking the header information MD5 attribute; judging the validity of the header information of the image file according to the MD5 attribute, and when the header information is invalid, acquiring the header file information again; when the header information is valid, triggering the module M3 to execute;
module M3: traversing the entry files in the header information, calculating the MD5 attribute of the local file according to the name attribute in the entry files and the path attribute in the file system, comparing the MD5 attribute of the header information with the MD5 attribute of the local file, judging and carrying out remote upgrading;
specifically, the module M3 includes:
module M3.1: acquiring an entry file in the header information, judging whether the entry file in the header information is empty, and restarting the RSU when the entry file is empty; when the entry file is not empty, acquiring the entry file;
module M3.2: calculating the MD5 attribute of the local file according to the name attribute of the acquired header information entry file and the path attribute in the file system;
module M3.3: comparing the MD5 attribute of the header information with the MD5 attribute of the local file, deleting the current entry file without remote upgrade when the Md5 attribute of the header information is the same as the Md5 attribute of the local file, and returning to the module M3.1; and when the Md5 attribute of the header information is different from the Md5 attribute of the local file, remotely upgrading the file, deleting the header information of the current entry file after upgrading, and returning to the module M3.1.
More specifically, the remote upgrade in the module M3.3 includes: and acquiring the file content according to the initial offset attribute and the file size attribute of the file in the header information in the mirror image file, downloading a specific file, such as a binary file, and copying the specific file to a local directory to finish the upgrading of the file.
Module M4: after the upgrade is completed, the RSU is restarted;
the entry file in the header information comprises a name attribute, a path attribute in a file system and an MD5 check value attribute.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A method for remotely upgrading RSU image is characterized by comprising the following steps:
step M1: the RSU acquires the header information of the mirror image file;
step M2: checking the header information MD5 attribute; judging the validity of the header information of the image file according to the MD5 attribute, and when the header information is invalid, acquiring the header file information again; when the header information is valid, performing step M3;
step M3: traversing the entry files in the header information, calculating the MD5 attribute of the local file according to the name attribute in the entry files and the path attribute in the file system, comparing the MD5 attribute of the header information with the MD5 attribute of the local file, judging and carrying out remote upgrading;
step M4: after the upgrade is completed, the RSU is restarted;
the entry file in the header information comprises a name attribute, a path attribute in a file system and an MD5 check value attribute.
2. The method for remotely upgrading the RSU image according to claim 1, wherein said step M1 comprises: and the RSU acquires the image file head information of the previous preset value of the image file from the cloud server according to the curl breakpoint continuous transmission through 4G/5G.
3. The method for remotely upgrading the RSU image according to claim 1, wherein said step M1 comprises: the header information includes: the header information stores each file attribute, namely, attributes required by all upgrades in the file system, including an entry file, an execution and ownership attribute of the file, a start offset attribute of the file in the mirror image file, and a file size attribute.
4. The method for remotely upgrading the RSU image according to claim 1, wherein said step M3 comprises:
step M3.1: acquiring an entry file in the header information, judging whether the entry file in the header information is empty, and restarting the RSU when the entry file is empty; when the entry file is not empty, acquiring the entry file;
step M3.2: calculating the MD5 attribute of the local file according to the name attribute of the acquired header information entry file and the path attribute in the file system;
step M3.3: comparing the MD5 attribute of the header information with the MD5 attribute of the local file, deleting the current entry file without remote upgrade when the Md5 attribute of the header information is the same as the Md5 attribute of the local file, and returning to the step M3.1; and when the Md5 attribute of the header information is different from the Md5 attribute of the local file, remotely upgrading the file, deleting the header information of the current entry file after upgrading, and returning to the step M3.1.
5. The method according to claim 4, wherein the remote upgrade of step M3.3 comprises: and obtaining the file content according to the initial offset attribute and the file size attribute of the file in the header information in the mirror image file, and copying the file content to a local directory to finish the upgrading of the file.
6. A remotely upgraded RSU mirroring system, comprising:
module M1: the RSU acquires the header information of the mirror image file;
module M2: checking the header information MD5 attribute; judging the validity of the header information of the image file according to the MD5 attribute, and when the header information is invalid, acquiring the header file information again; when the header information is valid, triggering the module M3 to execute;
module M3: traversing the entry files in the header information, calculating the MD5 attribute of the local file according to the name attribute in the entry files and the path attribute in the file system, comparing the MD5 attribute of the header information with the MD5 attribute of the local file, judging and carrying out remote upgrading;
module M4: after the upgrade is completed, the RSU is restarted;
the entry file in the header information comprises a name attribute, a path attribute in a file system and an MD5 check value attribute.
7. The system according to claim 6, wherein the module M1 comprises: and the RSU acquires the image file head information of the previous preset value of the image file from the cloud server according to the curl breakpoint continuous transmission through 4G/5G.
8. The system according to claim 6, wherein the module M1 comprises: the header information includes: the header information stores each file attribute, namely, attributes required by all upgrades in the file system, including an entry file, an execution and ownership attribute of the file, a start offset attribute of the file in the mirror image file, and a file size attribute.
9. The system according to claim 6, wherein the module M3 comprises:
module M3.1: acquiring an entry file in the header information, judging whether the entry file in the header information is empty, and restarting the RSU when the entry file is empty; when the entry file is not empty, acquiring the entry file;
module M3.2: calculating the MD5 attribute of the local file according to the name attribute of the acquired header information entry file and the path attribute in the file system;
module M3.3: comparing the MD5 attribute of the header information with the MD5 attribute of the local file, deleting the current entry file without remote upgrade when the Md5 attribute of the header information is the same as the Md5 attribute of the local file, and returning to the module M3.1; and when the Md5 attribute of the header information is different from the Md5 attribute of the local file, remotely upgrading the file, deleting the header information of the current entry file after upgrading, and returning to the module M3.1.
10. A system according to claim 9, wherein the remote upgrade in module M3.3 comprises: and obtaining the file content according to the initial offset attribute and the file size attribute of the file in the header information in the mirror image file, and copying the file content to a local directory to finish the upgrading of the file.
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