CN110825405A - Inverter program updating method - Google Patents
Inverter program updating method Download PDFInfo
- Publication number
- CN110825405A CN110825405A CN201911019099.9A CN201911019099A CN110825405A CN 110825405 A CN110825405 A CN 110825405A CN 201911019099 A CN201911019099 A CN 201911019099A CN 110825405 A CN110825405 A CN 110825405A
- Authority
- CN
- China
- Prior art keywords
- program
- area
- inverter
- read
- original
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stored Programmes (AREA)
Abstract
The invention discloses an inverter program updating method, which adopts an internal flash to store two programs, wherein a new program is stored in an area 2 when the inverter updates the program each time, and the original program of an old version is stored in an area 1. When the inverter starts to work, the new program in the area 2 is read first, if the new program is verified to be wrong, the old program in the area 1 is read and started, and if the new program is verified to be correct, the new program is started and copied into the area 1 to cover the original old program. The application of the invention ensures that the inverter program can be normally started and operated under any condition, and omits an external flash memory (flsah), thereby saving the cost and improving the user experience.
Description
Technical Field
The invention relates to the field of inverters, in particular to an inverter program updating method.
Background
The inverter is an electronic component for converting direct current electric energy (battery and accumulator jar) into alternating current (generally 220V,50Hz sine wave), and is composed of an inverter bridge, a control logic and a filter circuit, and is widely applied to air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines and other electrical appliances.
The inverter is actually a transformer, has high conversion efficiency, quick start and good safety performance, has five protection functions of short circuit, overload, over/under voltage and over temperature, has strong load adaptability and stability, and is popularized in the market. However, the current program of the inverter is usually only stored in an external flash memory (flash), and if the upgrading process is interrupted by an emergency such as power failure in the process of upgrading the program, the original program of the inverter is damaged, so that the inverter cannot normally work when being started again, which brings great trouble to users and affects daily work.
Therefore, it is desirable to provide a new technical solution to solve this problem, so that a backup solution can be started when the upgrade program has an error.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an inverter program updating method.
In order to achieve the purpose, the invention adopts the technical scheme that:
an inverter program updating method comprises the following steps:
s1: writing an update program into the inverter internal region 2, and writing check and update flag bits into the inverter internal region 3;
s2: starting the main controller, reading the program with the fixed length in the area 2, and performing segmented calculation on the read program with the fixed length to obtain a check program;
s3: comparing the verification procedure of step S2 with the original procedure in area 2;
s4: if the comparison result between the verification program and the original program in the area 2 is the same in step S3, the program in the area 1 is overwritten with the original program in the area 2, the verification in the area 3 is cleared, and the flag is updated, and the program in the area 1 is executed.
Further, in the above technical solution, in the step S2, the program length stored in the area 2 is read, and the program of the fixed length in the area 2 is read according to the program length read from the area 2.
Further, if the comparison result between the verification program and the original program in the area 2 is different in step S3, the program in the area 1 is executed.
Further, the inverter includes a main controller having a flash memory (flash) including an area 1, an area 2, and an area 3 to store a program.
Further, the programs in the region 1, the region 2 and the other regions are not cleared at the same time.
Compared with the prior art, the invention has the beneficial effects that:
1. the method stores the program in the flash inside the main controller, thereby avoiding the program damage caused by sudden conditions such as power failure and the like in the program upgrading process;
2. the method ensures that the inverter program can be correctly started under any condition, omits external flash and saves cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of the update method of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be described below in detail by referring to the drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the prior art, a program of an inverter is usually only stored in an external flash, and if the upgrading process is interrupted by an emergency such as power failure in the process of upgrading the program, the original program of the inverter is damaged, so that the inverter cannot normally work when being restarted. Fig. 1 is a flow chart of the updating method according to the present invention.
The gist of the present invention is further illustrated by the following examples:
example (b):
in order to solve the above problems, the present invention provides a new technical solution:
an inverter program updating method comprises the following steps:
s1: writing an update program into the inverter internal region 2, and writing check and update flag bits into the inverter internal region 3;
s2: starting the main controller, reading the program with the fixed length in the area 2, and performing segmented calculation on the read program with the fixed length to obtain a check program;
s3: comparing the verification procedure of step S2 with the original procedure in area 2;
s4: if the comparison result between the verification program and the original program in the area 2 is the same in step S3, the program in the area 1 is overwritten with the original program in the area 2, the verification in the area 3 is cleared, and the flag is updated, and the program in the area 1 is executed.
Further, in the above technical solution, in the step S2, the program length stored in the area 2 is read, and the program of the fixed length in the area 2 is read according to the program length read from the area 2.
Further, if the comparison result between the verification program and the original program in the area 2 is different in step S3, the program in the area 1 is executed.
Further, the inverter includes a main controller having a flash memory (flash) including an area 1, an area 2, and an area 3 to store a program.
Further, the programs in the region 1, the region 2 and the other regions are not cleared at the same time.
The updating method of the invention has the following main principles:
the flash is arranged in the inverter main controller, and the capacity of the flash is enough to store the programs of two versions, so that the internal flash is adopted to store the two programs, the new program is stored in the area 2 when the inverter updates the program each time, and the original program of the old version is stored in the area 1. When the inverter starts to work, the new program in the area 2 is read first, if the new program is verified to be wrong, the old program in the area 1 is read and started, and if the new program is verified to be correct, the new program is started and copied into the area 1 to cover the original old program.
As shown in the flowchart of fig. 1, each time a program needs to be updated, the program in the area 2 is updated, and after the program is stored in the area 2, the length and the update flag bit of the program are written into other fields except the area 1 and the area 2 for storage.
When starting up, detecting whether the program in the area 2 is complete, if the program in the area 2 fails to be verified, reading the program from the area 1 and starting the program;
when reading the program in the area 2, first, a fixed-length program is read according to the stored program length and is calculated and checked in segments.
And after the calculation is finished, comparing the calculated verification result with the program in the area 2, and if the verification results are the same, confirming that the program in the area 2 is complete and can be used.
After confirming that the program for area 2 is available, the data in area 2 is read into area 1, covering the previous program in area 1.
And when the program in the area 1 is updated to the program in the area 2, clearing the checksum and the update mark in the flash inside the main controller.
After the steps are completed, the program starting point is jumped to the starting address of the program in the flash area 1 in the main controller, and the inverter program starts to start and run.
The method stores the program in the flash inside the main controller, avoids program damage caused by sudden conditions such as power failure and the like in the program upgrading process, ensures that the inverter program can be correctly started under any condition, omits external flash, saves cost, provides economic benefits for the market and improves user experience.
Claims (5)
1. An inverter program updating method is characterized by comprising the following steps:
s1: writing an update program into the inverter internal region 2, and writing check and update flag bits into the inverter internal region 3;
s2: starting the main controller, reading the program with the fixed length in the area 2, and performing segmented calculation on the read program with the fixed length to obtain a check program;
s3: comparing the verification procedure of step S2 with the original procedure in area 2;
s4: if the comparison result between the verification program and the original program in the area 2 is the same in step S3, the program in the area 1 is overwritten with the original program in the area 2, the verification in the area 3 is cleared, and the flag is updated, and the program in the area 1 is executed.
2. The method according to claim 1, wherein in step S2, the program length stored in area 2 is read, and the program with the fixed length in area 2 is read according to the program length read from area 2.
3. The method according to claim 1, wherein if the comparison result of the verification procedure and the original procedure in the area 2 is different in step S3, the procedure in the area 1 is executed.
4. The method of claim 1, wherein the inverter comprises a master controller having a flash memory (flash) comprising area 1, area 2, and area 3 to store a program.
5. The method of claim 1, wherein the procedures in zone 1, zone 2 and other zones are not cleared simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019099.9A CN110825405A (en) | 2019-10-24 | 2019-10-24 | Inverter program updating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019099.9A CN110825405A (en) | 2019-10-24 | 2019-10-24 | Inverter program updating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110825405A true CN110825405A (en) | 2020-02-21 |
Family
ID=69550495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911019099.9A Pending CN110825405A (en) | 2019-10-24 | 2019-10-24 | Inverter program updating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110825405A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104102514A (en) * | 2014-07-18 | 2014-10-15 | 江苏兆伏新能源有限公司 | Firmware upgrading method and firmware upgrading device |
| JP2016099937A (en) * | 2014-11-26 | 2016-05-30 | 東芝アルパイン・オートモティブテクノロジー株式会社 | Method for back-up activation processing |
| CN105808296A (en) * | 2016-03-08 | 2016-07-27 | 江苏万帮德和新能源科技有限公司 | Client side software startup method used for charging pile to safely upgrade own program |
| CN107229495A (en) * | 2017-05-25 | 2017-10-03 | 沃太能源南通有限公司 | A kind of system and method for preventing EMS remote upgrade from failing |
| WO2018120213A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳配天智能技术研究院有限公司 | Firmware updating method and controller |
-
2019
- 2019-10-24 CN CN201911019099.9A patent/CN110825405A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104102514A (en) * | 2014-07-18 | 2014-10-15 | 江苏兆伏新能源有限公司 | Firmware upgrading method and firmware upgrading device |
| JP2016099937A (en) * | 2014-11-26 | 2016-05-30 | 東芝アルパイン・オートモティブテクノロジー株式会社 | Method for back-up activation processing |
| CN105808296A (en) * | 2016-03-08 | 2016-07-27 | 江苏万帮德和新能源科技有限公司 | Client side software startup method used for charging pile to safely upgrade own program |
| WO2018120213A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳配天智能技术研究院有限公司 | Firmware updating method and controller |
| CN107229495A (en) * | 2017-05-25 | 2017-10-03 | 沃太能源南通有限公司 | A kind of system and method for preventing EMS remote upgrade from failing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070055969A1 (en) | System and method for updating firmware | |
| CN102567135B (en) | Refreshing/recovering method and electronic equipment | |
| CN101373451B (en) | Computer system for protecting double-basic input /output system program and control method thereof | |
| CN103473067A (en) | Embedded Linux partitioning and data recovery method, embedded Linux partitioning and data recovery system and system development method | |
| CN102541690B (en) | Intelligent card and method for recovering data | |
| CN103902399B (en) | Software system repair processing method and software system repair processing device | |
| CN104636217A (en) | Root file system automatic backup and exception recovery method and partition structure | |
| CN106775610A (en) | A kind of electronic equipment starts method and a kind of electronic equipment | |
| CN106897166B (en) | Mobile terminal and repairing method thereof | |
| CN112596672B (en) | Storage processing method and device of main control chip, processor and electronic equipment | |
| CN109634781B (en) | Double-area backup image system based on embedded program and starting method | |
| CN104133730A (en) | Method and device for repairing system abnormality and mobile terminal | |
| CN105302663A (en) | Mirror image starting method and terminal equipment | |
| CN104123208A (en) | System abnormality repairing method and device and mobile terminal | |
| CN110825405A (en) | Inverter program updating method | |
| CN111552592A (en) | Double-backup starting method and system | |
| CN108170456B (en) | Firmware upgrading method and device for electronic equipment | |
| CN113127035A (en) | Traceable upgrading method based on single chip microcomputer | |
| CN102722669A (en) | Completeness verification method of operating system | |
| CN104102505A (en) | Computer power-on method | |
| CN112379843B (en) | EEPROM data processing method, system, storage medium and terminal | |
| CN110581642B (en) | Converter soft start circuit and method | |
| CN110688141A (en) | Firmware updating method | |
| CN110609692A (en) | Data acquisition module, firmware upgrading method thereof and storage medium | |
| CN111475343A (en) | Computer state power failure recovery method and device and terminal equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |