CN118409894A - Method for starting household appliance program and machine-readable storage medium - Google Patents

Abstract

The present invention provides a method for starting a home appliance program and a machine-readable storage medium, wherein the method for starting a home appliance program includes: obtaining a self-checking event that triggers the home appliance; performing verification calculations on the programs in multiple program storage areas respectively to obtain verification results of the multiple program storage areas; judging whether the programs in the multiple program storage areas are correct according to the verification results; selecting one as a running program from the programs judged to be correct; and executing the running program. In the scheme of the present invention, the programs in the multiple program storage areas run independently, can each complete the corresponding functions of the home appliance, and serve as backup for each other. In the case that a program in any program storage area runs abnormally, the faulty program can be quickly eliminated, so that the home appliance can quickly resume normal operation.

Description

Method for starting home appliance program and machine-readable storage medium

Technical Field

The present invention relates to home appliance control, and in particular to a home appliance program startup method and a machine-readable storage medium.

Background technique

As the functions of household appliances become increasingly rich, their operation increasingly relies on the correct execution of control programs. However, the usage scenarios of household appliances vary greatly, and some usage environments have strong external interference, which may destroy the operating environment of the program and even cause code failures in the program memory.

Home appliance quality problems caused by program errors reduce the user experience, increase the company's after-sales costs, and have a negative impact on the company's brand.

In order to solve the above problems, the prior art has proposed a remote program flashing solution. In the event of a program error, the program is flashed remotely using network technology. However, this method has the following problems: it requires networking conditions; it has poor security and reliability, and has a slow processing speed.

Due to the above technical problems, the above solutions only remain in the research and development and testing stage and have not been actually applied to home appliances.

Summary of the invention

An object of the present invention is to provide a method for starting a home appliance program and a machine-readable storage medium that can solve any of the above problems.

A further object of the present invention is to improve the reliability of the home appliance program and ensure the normal startup of the home appliance.

Another further object of the present invention is to quickly repair damaged programs.

In particular, the present invention provides a method for starting a home appliance program, comprising:

Get the self-test event that triggers the home appliance;

Performing verification calculations on the programs in the plurality of program storage areas respectively to obtain verification results of the plurality of program storage areas;

Determine whether the programs in the multiple program storage areas are correct according to the verification results;

Select one of the programs that are judged to be correct as the running program;

Execute the run program.

Optionally, the step of performing verification calculations on the programs in the plurality of program storage areas respectively includes:

Reading verification code from a self-checking storage area independent of a plurality of program storage areas;

The verification code is executed to perform verification calculations on the programs in the plurality of program storage areas respectively.

Optionally, the step of judging whether the programs in the plurality of program storage areas are correct according to the verification result includes:

Read the expected result from the self-test storage area;

Compare the expected result with the verification results of multiple program storage areas respectively;

A program whose verification result matches the expected result is determined to be a correct program.

Optionally, the validation code is configured as:

Performing a checksum calculation on at least a portion of the code in the program; and/or

Extract the specified characteristic information of the program and perform verification calculation on the characteristic information.

Optionally, the step of selecting one of the programs determined to be correct as a running program includes:

Select the one with the highest priority from the correct programs as the running program; or

A program is randomly selected to run from the programs judged to be correct.

Optionally, the step of executing the running program includes:

Position the program start address in the bootloader code to the running program; to load the running program.

Optionally, after the step of selecting one of the programs determined to be correct as the running program, the method further includes: replacing the program determined to be incorrect with the program determined to be correct.

Optionally, the self-test events of the home appliance include:

Initialization event of powering on a home appliance; and/or

A timed event where a preset self-test time has been reached; and/or

Repair incidents where home appliances report errors during program execution.

Optionally, the multiple program storage areas are multiple independent memories and/or multiple storage areas divided from one memory.

According to another aspect of the present invention, a machine-readable storage medium is provided, on which a machine-executable program is stored. When the machine-executable program is executed by a processor, any of the above-mentioned methods for starting a home appliance program is implemented.

The method for starting a home appliance program of the present invention stores programs in a plurality of program storage areas respectively, and performs verification calculations on the programs in the plurality of program storage areas during a self-check process to obtain verification results of the plurality of program storage areas. The verification results are used to determine whether the programs in the plurality of program storage areas are correct; one of the programs determined to be correct is selected as a running program; and the running program is executed. The programs in the plurality of program storage areas run independently, and can each complete the corresponding functions of the home appliance and serve as backup for each other. In the event that a program in any program storage area runs abnormally, the faulty program can be quickly eliminated.

Furthermore, in the method for starting a household appliance program of the present invention, the verification code and expected results can be stored in a self-check storage area independent of multiple program storage areas, which can effectively prevent them from being damaged. The verification process is fast and efficient, and the results are accurate, which is particularly suitable for household appliances.

Furthermore, the method for starting a home appliance program of the present invention directly uses the program determined to be correct as the running program and executes it. Compared with the existing program repair technology, the processing is faster and the repair failure can be avoided.

Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG1 is a schematic diagram of a method for starting a home appliance program according to an embodiment of the present invention;

FIG2 is a schematic diagram of dual program storage areas in a method for starting a home appliance program according to an embodiment of the present invention;

3 is a schematic diagram of a flow chart of a method for starting a home appliance program according to an embodiment of the present invention applied to a dual program storage area;

4 is a schematic diagram of dual program storage areas in a method for starting a home appliance program according to an embodiment of the present invention;

FIG5 is a schematic flow chart of a method for starting a home appliance program according to an embodiment of the present invention applied to a dual program storage area; and

FIG. 6 is a schematic diagram of a machine-readable storage medium according to an embodiment of the present invention.

Detailed ways

In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, steps, processes or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, steps, processes or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

FIG1 is a schematic diagram of a method for starting a home appliance program according to an embodiment of the present invention; the method for starting a home appliance program may generally include:

Step S101, obtaining a self-test event that triggers the home appliance.

The above self-test events may include: an initialization event when the home appliance is powered on; a timing event when a preset self-test time is reached; and a repair event when a program execution error occurs in the home appliance.

The initialization event of powering on the home appliance may be an event of receiving an initialization instruction after the home appliance is powered on, that is, during the initialization process of the home appliance, the home appliance program is checked and a program to be executed is selected.

The timed event of reaching the preset self-test time may be the event of receiving a preset self-test time expiration instruction, that is, the home appliance may preset a self-test cycle, perform self-tests regularly, perform verification of the home appliance program during the self-test process, and reselect the program to be executed.

The repair event for a program execution error in a home appliance may be an event of receiving a home appliance fault indication signal or receiving feedback on a function failure. That is, when the home appliance discovers a fault during operation or receives user feedback that the function is abnormal, the home appliance program is verified and the program to be executed is reselected.

Step S102, respectively perform verification calculations on the programs in the multiple program storage areas to obtain verification results of the multiple program storage areas. The above-mentioned multiple program storage areas are independent of each other and can be configured as multiple independent memories and/or multiple storage areas divided from one memory. The specific number of program storage areas can be configured as needed, for example, configured as 2, 3 or more. The programs in the multiple program storage areas can be configured as the same program, and can independently complete the corresponding functions.

The verification calculation can be completed by the verification code. For example, the specific verification calculation process can include: reading the verification code from a self-test storage area independent of multiple program storage areas; executing the verification code, so that the verification code performs verification calculations on the programs in the multiple program storage areas respectively. The above self-test storage area can be an independent and reliable memory pre-configured inside the home appliance, and its capacity requirements can meet the storage of the verification code and other necessary parameters.

One verification calculation method that can be mentioned is to place verification codes in the programs in multiple program storage areas respectively, and when performing verification, the verification codes can be directly called.

The verification code may be configured to: perform verification calculation on at least a portion of the code in the program; and/or extract specified characteristic information of the program and perform verification calculation on the characteristic information.

One way to perform verification calculation on at least a portion of the code in the program may be: performing a verification and calculation on a specified program portion, and obtaining a obtained checksum as a verification result. Another way to perform verification calculation on at least a portion of the code in the program may be: performing a hash calculation on a specified control program, and obtaining a hash value as a verification result. The specific calculation method of the verification calculation may be selected according to the computing power of the home appliance processor.

The process of using the characteristic information of the program for verification can be: extracting one or more characteristic information of the program such as the amount of code, version information, specific functions, key variables, etc., and generating corresponding verification results. That is, the extracted characteristic information can include but is not limited to the amount of code, version information, specific functions, and key variables of the program.

Step S103, judging whether the programs in the plurality of program storage areas are correct according to the verification results. The method for judging whether the program is correct may be to compare the verification results with the preset expected results. If the verification results are consistent with the expected results, then the program may be considered correct; if the verification results are inconsistent with the expected results, then the program may be considered abnormal.

A specific judgment method may be: reading the expected result from the self-check storage area; comparing the expected result with the verification results of multiple program storage areas respectively; judging the program whose verification result matches the expected result as the correct program. The expected result may be generated in advance based on the correct program.

Step S104, selecting one of the programs determined to be correct as the running program.

If there are multiple correct programs, an optional selection method may be to select the running program in a priority manner, for example, selecting the program with the highest order according to the order of the ID (identification number) of the program storage area, or selecting according to the order of the program storage area set in advance. The priority level (ID order, preset order) may be set according to the type of program storage area, reliability, etc.

Another alternative is to randomly select a running program from the programs determined to be correct, so that each program storage area has a chance to be used.

Step S105, executing the selected running program. One implementation of executing the program is: locating the program start address in the boot loading code to the running program; during the program initialization process, loading the corresponding program according to the program start address of the boot loading code, loading the running program into the memory, and completing subsequent functions according to the running program. The boot loading code is generally solidified in the firmware, and the possibility of abnormality itself is extremely small.

When executing the selected running program, the program determined to be correct can be further used to replace the program determined to be wrong, thereby backing up the correct program.

The method for starting a home appliance program of the present invention performs verification calculations on the programs in the multiple program storage areas during the self-check process to obtain verification results of the multiple program storage areas. The verification results are used to determine whether the programs in the multiple program storage areas are correct; one of the programs determined to be correct is selected as a running program; and the running program is executed. The programs in the multiple program storage areas run independently, and can each complete the corresponding functions of the home appliance and serve as backup for each other. In the case that a program in any program storage area runs abnormally, the faulty program can be quickly eliminated.

Fig. 2 is a schematic diagram of dual program storage areas in a method for starting a home appliance program according to an embodiment of the present invention. The home appliance is provided with two program storage areas 210 and 220, wherein the program storage area 210 stores a program 211 and the program storage area 220 stores a program 221. The two program storage areas 210 and 220 are two independent memories or two storage areas divided from one memory.

FIG3 is a schematic diagram of a process of applying a method for starting a home appliance program to a dual program storage area according to an embodiment of the present invention. The process includes:

Step S301, the refrigerator is powered on and started;

Step S302, determining whether program verification is triggered;

Step S303, after triggering the program verification, reading the verification code;

Step S304, executing the verification code to perform verification calculation on the program 211 in the running program storage area 210;

Step S305, comparing the verification result of program 211 with the expected result;

Step S306, if the verification result of program 211 is consistent with the expected result, then continue to execute program 211;

Step S307, if the verification result of the program 211 is inconsistent with the expected result, the verification code is used to perform verification calculation on the program 221 in another program storage area 220;

Step S308, comparing the verification result of program 221 with the expected result;

Step S309: If the verification result of program 221 is still inconsistent with the expected result, it indicates that all programs are wrong and an error is reported. This situation is extremely rare and generally does not occur.

Step S310: If the verification result of program 221 is consistent with the expected result, the correct program is used as the running program and executed.

Step S311, write the correct program 221 into the program storage area 210 to replace the wrong program 211. Thus, the program in the program storage area 210 is used as a backup.

In the process shown in FIG. 3 , the dual program storage areas 210 and 220 back up each other, thereby improving the overall reliability of the home appliance program.

Fig. 4 is a schematic diagram of dual program storage areas in a method for starting a home appliance program according to an embodiment of the present invention. The home appliance is provided with three program storage areas 410, 420, and 430, wherein program storage area 410 stores program 411, program storage area 420 stores program 421, and program storage area 430 stores program 431. The above three program storage areas 410, 420, and 430 may be set as a plurality of independent memories or a plurality of storage areas divided from a memory. Alternatively, in some embodiments, the three program storage areas 410, 420, and 430 may include an independent memory and two storage areas divided from another memory, which may preferably select the program of the independent memory to run during normal operation.

FIG5 is a schematic diagram of a process of applying a method for starting a home appliance program to a dual program storage area according to an embodiment of the present invention. The process includes:

Step S501, the refrigerator is powered on and started;

Step S502, determining whether program verification is triggered;

Step S503, after triggering the program verification, reading the verification code;

Step S504, executing the verification code to perform verification calculation on the programs 411, 421, 431 in the three program storage areas 410, 420, 430;

Step S505, comparing the verification results of the three programs 411, 421, and 431 with the expected results respectively;

Step S506, there is a program that is consistent with the expected result;

Step S507, select a running program from the correct programs and execute it; if only one program is correct, the correct program can be used as the running program; if there are two correct programs, one of them can be selected as the running program; if the three programs 411, 421, and 431 are all determined to be correct programs, any one of them can be selected as the running program.

Step S508: Use the correct program to replace the incorrect program.

The two program storage areas 210 and 220 and the three program storage areas 410 , 420 , and 430 are all examples. Those skilled in the art can implement more program storage areas, such as 4 or 5 program storage areas, based on this.

It should be noted that the logic and/or steps represented in the flowchart or described in other ways herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or equipment (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or equipment and execute instructions), or used in combination with these instruction execution systems, devices or equipment.

6 is a schematic diagram of a machine-readable storage medium 600 according to an embodiment of the present invention, on which a machine-executable program 610 is stored. When the machine-executable program 610 is executed by a processor, any of the above methods for starting a home appliance program can be implemented.

For the purpose of the description of this embodiment, the machine-readable storage medium 600 can be any device that can contain, store, communicate, propagate or transmit a program for use with an instruction execution system, device or apparatus or in conjunction with such instruction execution system, device or apparatus. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection having one or more wirings (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory).

The machine executable program 610 for performing the operations of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages such as Smalltalk, C++, etc., and conventional procedural programming languages such as "C" language or similar programming languages. The machine executable program 610 may be executed entirely on a computer, partially on a computer, or as a stand-alone software package.

In the method for starting the home appliance program of this embodiment, the programs are stored in the multiple program storage areas respectively, and the programs in the multiple program storage areas are verified and calculated respectively during the self-check process to obtain the verification results of the multiple program storage areas. The verification results are used to determine whether the programs in the multiple program storage areas are correct; one of the programs determined to be correct is selected as the running program; and the running program is executed. The programs in the multiple program storage areas run independently, and can each complete the corresponding functions of the home appliance and serve as backup for each other. In the case that a program in any program storage area runs abnormally, the faulty program can be quickly eliminated.

Furthermore, the method for starting the home appliance program of this embodiment directly uses the program determined to be correct as the running program and executes it. Compared with the existing program repair technology, the processing is faster and the repair failure can be avoided.

The method for starting the home appliance program of this embodiment is particularly suitable for refrigerator products such as smart refrigerators, and can automatically repair damaged or tampered refrigerator program codes to ensure the normal operation of refrigerator functions. In particular, when the refrigerator program storage chip is write-protected, the built-in backup program can be used to enable the backup program in time, thereby improving the operating reliability of the refrigerator.

At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and identified as covering all such other variations or modifications.

Claims (10)

1. A method for starting a home appliance program, comprising:

acquiring a self-checking event triggering the household appliance;

respectively performing verification calculation on programs in a plurality of program storage areas to obtain verification results of the program storage areas;

judging whether programs in the program storage areas are correct or not according to the verification result;

selecting one from the programs determined to be correct as an operation program;

executing the running program.

2. The method for starting up a home appliance program according to claim 1, wherein the step of performing verification calculation on the programs in the plurality of program storage areas, respectively, comprises:

reading a check code from within a self-checking memory area that is independent of the plurality of program memory areas;

and executing the check codes to respectively perform check calculation on the programs in the program storage areas by the check codes.

3. The method for starting up a home appliance program according to claim 2, wherein the step of judging whether the programs of the plurality of program storage areas are correct according to the verification result comprises:

Reading an expected result from the self-test storage area;

Comparing the expected result with the verification results of the program storage areas respectively;

And judging the program of which the verification result is matched with the expected result as the correct program.

4. The method of starting up a home appliance program of claim 2, wherein the check code is configured to:

performing verification calculation on at least one part of codes in the program; and/or

And extracting the appointed characteristic information of the program, and performing verification calculation on the characteristic information.

5. The method of starting a home appliance program according to claim 1, wherein the step of selecting one of the programs determined to be correct as the operation program comprises:

Selecting one with highest priority from the programs judged to be correct as the running program; or alternatively

The running program is randomly selected from the programs judged to be correct.

6. The method for starting up a home appliance program according to claim 1, wherein the step of executing the operation program comprises:

positioning a program starting address in the boot loading code to the running program; to load the running program.

7. The method for starting up a home appliance program according to claim 1, wherein after the step of selecting one of the programs determined to be correct as an operation program, further comprising:

and replacing the program judged to be wrong by the program judged to be correct.

8. The method for starting a home appliance program according to claim 1, wherein the self-checking event of the home appliance comprises:

An initialization event of the power-on and power-on of the household appliance; and/or

A timing event reaching a preset self-checking time; and/or

And the home appliance generates a repairing event of program execution error reporting.

9. The method for starting a home appliance program according to claim 1, wherein,

The program memory areas are a plurality of independent memories and/or a plurality of memory areas divided by a memory.

10. A machine-readable storage medium having stored thereon a machine-executable program which, when executed by a processor, implements the method of starting a home appliance program according to any one of claims 1 to 9.