CN115113901A - Remote upgrading method, device and medium for electric control software of intelligent household appliance - Google Patents
Remote upgrading method, device and medium for electric control software of intelligent household appliance Download PDFInfo
- Publication number
- CN115113901A CN115113901A CN202210840224.8A CN202210840224A CN115113901A CN 115113901 A CN115113901 A CN 115113901A CN 202210840224 A CN202210840224 A CN 202210840224A CN 115113901 A CN115113901 A CN 115113901A
- Authority
- CN
- China
- Prior art keywords
- display panel
- upgrading
- firmware
- software
- information
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
- H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
Landscapes
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stored Programmes (AREA)
Abstract
The invention relates to a remote upgrading method, a device and a medium for electric control software of an intelligent household appliance, wherein the method comprises the following steps: acquiring software and hardware information from a display panel of the intelligent household appliance, and inquiring whether a firmware upgrade package of electronic control software of the display panel exists in a cloud; if the firmware upgrade package exists, downloading the firmware upgrade package to the WIFI module, and sending a firmware transmission request to a display panel after the downloading is finished; if a starting transmission command fed back by the display panel is received within a first time period, the firmware upgrade package is sent to the display panel frame by frame; after the transmission of the firmware upgrading package is completed, acquiring upgraded software and hardware information from the display panel; judging whether the electric control software is successfully upgraded according to the software and hardware information before and after upgrading; if the upgrade fails, storing a mark position 1 of the backup area; after the intelligent household appliance is restarted, if the flag bit is 1, returning to the step of sending a firmware transmission request to the display panel. The embodiment of the invention can improve the success rate of upgrading.
Description
Technical Field
The invention relates to the technical field of intelligent household appliances, in particular to a method, a device and a medium for remotely upgrading electric control software of an intelligent household appliance.
Background
The remote upgrading of the electric control software not only can save production and after-sale cost, improve after-sale efficiency and promote brand public praise, but also has remarkable effects of continuously optimizing the performance of the intelligent equipment, increasing new functions, promoting user experience, accelerating the marketing progress of new products and the like. In the process, the success rate of remote upgrading of the intelligent device electronic control software is improved, which is very important.
Disclosure of Invention
In order to solve the above technical problems or at least partially solve the above technical problems, the present invention provides a method, an apparatus, and a medium for remotely upgrading electronic control software of an intelligent household appliance.
In a first aspect, an embodiment of the present invention provides a method for remotely upgrading electronic control software of an intelligent appliance, where the method is executed by a WIFI module in the intelligent appliance, and the method includes:
acquiring software and hardware information from a display panel of the intelligent household appliance, and inquiring whether a firmware upgrade package of electric control software of the display panel exists in a cloud end according to the software and hardware information;
if the firmware upgrade package exists, downloading the firmware upgrade package to a storage backup area of the WIFI module, and sending a firmware transmission request to the display panel after the firmware upgrade package is downloaded;
if a starting transmission command fed back by the display panel is received within a first time after the firmware transmission request is sent, sending the firmware upgrading packets in the storage backup area to the display panel frame by frame;
after the transmission of the firmware upgrading package is completed, acquiring upgraded software and hardware information from the display panel; judging whether the electric control software is successfully upgraded according to the software and hardware information before and after upgrading;
if the upgrade is successful, marking the position 0 of the storage backup area; if the upgrade fails, marking the position 1 of the storage backup area; after the intelligent household appliance is restarted, if the flag bit is 1, returning to the step of sending a firmware transmission request to the display panel; if the flag bit is 0, the method is ended.
In a second aspect, an embodiment of the present invention provides a device for remotely upgrading electronic control software of an intelligent appliance, where the device is located in a WIFI module in the intelligent appliance, and the device includes:
the first acquisition module is used for acquiring software and hardware information from a display panel of the intelligent household appliance and inquiring whether a firmware upgrading package of electric control software of the display panel exists in a cloud end according to the software and hardware information;
the firmware downloading module is used for downloading the firmware upgrading package to a storage backup area of the WIFI module if the firmware upgrading package exists, and sending a firmware transmission request to the display panel after the firmware upgrading package is downloaded;
the firmware transmission module is used for sending the firmware upgrading packets in the storage backup area to the display panel frame by frame if a starting transmission command fed back by the display panel is received within a first time period after the firmware transmission request is sent;
the second acquisition module is used for acquiring the upgraded software and hardware information from the display panel after the transmission of the firmware upgrade package is finished; judging whether the electric control software is successfully upgraded according to the software and hardware information before and after upgrading;
the upgrading confirmation module is used for marking the position 0 of the storage backup area if the upgrading is successful; if the upgrade fails, marking the position 1 of the storage backup area; after the intelligent household appliance is restarted, if the flag bit is 1, returning to the firmware downloading module to execute the step of sending a firmware transmission request to the display panel; if the flag bit is 0, the upgrading process provided by the device is ended.
In a third aspect, an embodiment of the present invention provides a computing device, including: at least one memory and at least one processor; the at least one memory to store a machine readable program; the at least one processor is configured to invoke the machine-readable program to perform the method provided by the first aspect.
In a fourth aspect, the present invention provides a computer-readable medium, on which computer instructions are stored, and when executed by a processor, the computer instructions cause the processor to execute the method provided in the first aspect.
The embodiment of the invention provides a remote upgrading method, a device and a medium for electric control software of an intelligent household appliance, which comprises the steps of firstly obtaining software and hardware information from a display panel of the intelligent household appliance, and inquiring whether a firmware upgrading package of the electric control software of the display panel exists in a cloud end according to the software and hardware information; if the firmware upgrade package exists, downloading the firmware upgrade package to a storage backup area of the WIFI module, and sending a firmware transmission request to the display panel after the firmware upgrade package is downloaded; if a starting transmission command fed back by the display panel is received within a first time after the firmware transmission request is sent, sending the firmware upgrading packets in the storage backup area to the display panel frame by frame; after the transmission of the firmware upgrading package is completed, acquiring upgraded software and hardware information from the display panel; and judging whether the electric control software is successfully upgraded or not according to the software and hardware information before and after upgrading. If the upgrade is successful, storing the mark position 0 of the backup area; if the upgrade fails, marking the position 1 of the storage backup area; and after the intelligent household appliance is restarted, if the flag bit is 1, returning to the step of sending a firmware transmission request to the display panel, and carrying out upgrading again. If the flag bit is 0, the method is ended. After the upgrade is failed, the flag bit is set to 1, so that after the restart, if the flag bit is known to be 1, the firmware transmission request sent to the display panel in the above step is returned, and the upgrade is carried out again until the upgrade is successful. Sometimes, the upgrade can be successful once, and sometimes, the upgrade needs to be successful for multiple times. In a word, the upgrading can be successful finally no matter after several upgrading processes, and the method provided by the embodiment of the invention can basically ensure that the upgrading success rate is one hundred percent, namely, the upgrading success rate is greatly improved. And if the firmware is upgraded again, the firmware impact package does not need to be downloaded again, so that the upgrading efficiency can be greatly improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
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, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic flow chart illustrating a method for remotely upgrading electronic control software of an intelligent household appliance according to an embodiment of the present invention;
fig. 2 is a processing flow chart of a WIFI module in a remote upgrade method of electronic control software of an intelligent appliance in an embodiment of the present invention;
fig. 3 is a flowchart illustrating a process of a display panel in a method for remotely upgrading electronic control software of an intelligent appliance according to an embodiment of the present invention;
fig. 4 is a block diagram of a remote upgrading apparatus for electric control software of an intelligent appliance according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In a first aspect, an embodiment of the present invention provides a method for remotely upgrading electronic control software of an intelligent household appliance.
The method can be executed by a WIFI module in the intelligent household appliance, and referring to fig. 1 to 3, the method provided by the embodiment of the invention can comprise the following steps of S110 to S150:
s110, acquiring software and hardware information from a display panel of the intelligent household appliance, and inquiring whether a firmware upgrade package of electric control software of the display panel exists in a cloud end according to the software and hardware information;
it will be appreciated that electronic control software is installed in the display panel for controlling the processing flow or function of the display panel.
The software and hardware information may include various information, for example, an SN number of the intelligent appliance, a model number of the electronic control software, a software version number of the electronic control software, a hardware version number, and the like. Wherein, the SN number is the product serial number of the intelligent household appliance. The electric control software has different models and different functions. The software version number represents the version of the electric control software, and the hardware version number represents the version of the hardware display board where the electric control software is located.
In an actual scene, the first intelligent household appliance is powered on, and the WIFI module can send software and hardware information inquiry instructions to the display panel in a circulating mode until software and hardware information replied by the display panel is received.
In one embodiment, the querying whether the firmware upgrade package of the electronic control software of the display panel exists in the cloud according to the software and hardware information in S110 may include the following steps S111 to S112:
s111, inquiring whether a firmware upgrading package meeting preset conditions exists in the cloud; wherein the preset conditions are as follows: the SN number of the intelligent household appliance, the model number of the electric control software and the hardware version number of the electric control software corresponding to the firmware upgrading packet are respectively in one-to-one correspondence with the SN number of the intelligent household appliance, the model number of the electric control software and the hardware version number of the electric control software obtained from the display panel, and the software version number of the firmware upgrading packet is higher than the software version number obtained from the display panel;
and S112, if the firmware upgrade package meeting the preset condition exists, the firmware upgrade package of the electric control software of the display panel exists in the cloud.
That is, the preset conditions are: the firmware upgrade package and the electric control software currently installed on the intelligent household appliance are the same on other software and hardware information except for the software version number, and the software version number of the firmware upgrade package is higher than that of the electric control software currently installed on the intelligent household appliance. If the condition is met, the fact that the firmware upgrade package of the electric control software is stored in the cloud end is indicated, and if the condition is not met, the fact that the firmware upgrade package of the electric control software is not stored in the cloud end is indicated.
Therefore, the purpose of inquiring the software and hardware information is to ensure that equipment with a specified model is upgraded and ensure the state consistency of the upgrade package. Before the method provided by the embodiment of the invention is executed, a firmware upgrade package is already deployed in the cloud.
Under the condition that the firmware upgrade package of the electronic control software is stored in the cloud, the following steps are executed.
S120, if the firmware upgrade package exists, downloading the firmware upgrade package to a storage backup area of the WIFI module, and sending a firmware transmission request to the display panel after the firmware upgrade package is downloaded;
for example, the firmware upgrade package is downloaded to a Flash backup area of the WIFI module.
It can be understood that the method provided by the embodiment of the invention upgrades the electric control program in the display panel, in an actual scene, the program on the WIFI module also has a need of upgrading, and the space of the flash backup area of the WIFI module is large, so that the upgrading need is met. The display panel monopolizes the right of use of the backup area when the display panel is upgraded, and the WIFI module monopolizes the right of use of the backup area when the WiFi module is upgraded. And after the upgrade is finished, the WIFI module and the display panel share the backup area in a time-sharing mode.
It can be understood that after the firmware upgrade package is downloaded, the WIFI module sends a firmware transmission request to the display panel, and if a reply of the display panel is obtained within a certain time after the firmware transmission request is sent, a transmission flow of the firmware upgrade package is started.
Certainly, after the firmware upgrade package is downloaded, before the WIFI module sends a firmware transmission request to the display panel, the WIFI module may also send an upgrade request to the display panel, so that both the WIFI module and the display panel perform state switching, and after the state switching, the WIFI module and the display panel cannot perform other work, and only the firmware upgrade is performed.
That is, in one embodiment, after the downloading of the firmware upgrade package is completed and before the firmware transmission request is sent to the display panel in S120, the method further includes:
sending an upgrading request to the display panel, switching to an upgrading state, and switching a transmission channel to a second baud rate at the current first baud rate; wherein the second baud rate is higher than the first baud rate;
judging whether the confirmation information fed back by the display panel is received within a second time length after the upgrading request is sent;
if yes, executing the step of sending a firmware transmission request to the display panel;
otherwise, quitting the upgrading state and switching the transmission channel to the first baud rate;
and the display panel is restarted after receiving the upgrading request, enters a guide mode after being restarted, and feeds back confirmation information in the guide mode.
For example, the WIFI module loops to send an upgrade request to the display panel, waiting for a reply from the display panel. And after the WIFI module sends an upgrading request, the WIFI module is switched to an upgrading state, and only relevant operations of firmware upgrading can be performed after the WIFI module is switched to the upgrading state. And the first baud rate of the transmission channel is switched to a second baud rate, the first baud rate is an initial default baud rate, the first baud rate is the first baud rate in a non-upgrading state, the second baud rate is the second baud rate in an upgrading state, and the second baud rate is higher than the first baud rate, so that the transmission speed can be improved when a firmware upgrading packet is transmitted. And when the display panel receives the upgrading request, the display panel is restarted, and enters a boot mode after the display panel is restarted, namely, the bootloader program is started, and confirmation information is replied to the WIFI module in the boot mode. And if the WIFI module receives the confirmation information within 1min, sending a firmware transmission request to the display panel. And if the WIFI module does not receive the confirmation information within 1min, exiting the upgrading state, switching the second baud rate of the transmission channel to the first baud rate, and ending the upgrading process.
The second baud rate during upgrading is far greater than the first baud rate in a conventional state, so that the transmission time of the firmware upgrading packet can be greatly shortened, and the upgrading efficiency is improved.
In one embodiment, the method provided in the embodiment of the present invention may further include:
if an upgrade quitting command sent by the display panel is received, quitting the upgrade state, and switching a transmission channel to the first baud rate;
and if the display panel does not receive the firmware transmission request after the display panel enters the boot mode for a second time period, exiting the boot mode and sending the update exiting command to the WIFI module.
For example, after entering the boot mode, the display panel sends confirmation information to the WIFI module, and then waits for a firmware transmission request sent by the WIFI module. And if the firmware transmission request is not received within 1min after the WIFI module enters the boot mode, exiting the boot mode, simultaneously sending an exit upgrading command to the WIFI module, exiting the upgrading state after the WIFI module receives the exit upgrading command, switching the second baud rate to the first baud rate, and returning to the initial state.
Certainly, if the display panel receives the firmware transmission request sent by the WIFI module within 1min after entering the boot mode, the display panel returns confirmation information to the WIFI module, and sends a NAK command to the WIFI module after replying the confirmation information, that is, starts the transmission command.
The second time period may be set as required, and is not limited to 1min mentioned in the above example.
As can be seen, a time limit, i.e., a second time period (e.g., 1min), for receiving the confirmation information fed back by the display panel after sending the upgrade request is set in the WIFI module, and a time limit, i.e., a second time period (e.g., 1min), for receiving the firmware transmission request after entering the boot mode is also set in the display panel. The problem that packet loss may occur in the data transmission process due to the interference of environment and self factors in the upgrading process of the intelligent household appliance is considered, and the exit upgrading command is set in order to prevent the display panel from changing into a brick due to the packet loss problem. The variable brick means that the display panel is always in a guide mode and cannot be withdrawn, so that the display panel cannot be normally used. Due to the fact that the second time length is set and the upgrading quitting command is set, the display panel and the WIFI module can conduct communication detection of the second time length, if the second time length is exceeded and correct instructions are not received, the display panel and the WIFI module quit the upgrading state and the guiding mode and wait for next upgrading.
S130, if a transmission starting command fed back by the display panel is received within a first time period after the firmware transmission request is sent, sending the firmware upgrading packets in the storage backup area to the display panel frame by frame;
for example, if the WIFI module receives a transmission start command within 15s after sending the firmware transmission request, the WIFI module may start to transmit data according to the xmodem protocol, and specifically, transmit the firmware upgrade packet to the display panel frame by frame, so that the display panel receives the data of the firmware upgrade packet frame by frame. If the transmission starting command is not received within 15s, the WIFI module exits the upgrading state and switches from the second baud rate to the first baud rate, and therefore the WIFI module returns to the initial state.
In an embodiment, the sending the firmware upgrade package in the storage backup area to the display panel frame by frame in S130 may specifically include the following steps S131 to S132:
s131, after each frame of data of the firmware upgrade package is sent to the display panel, receiving feedback information sent by the display panel;
s131, if the feedback information is ACK information, sending next frame data of the firmware upgrade package to the display panel; if the feedback information is NAK information, resending the current frame data to the display panel; if the feedback information is CAN information, exiting the upgrading state and switching a transmission channel to the first baud rate;
after receiving each frame of data, the display panel checks the data frame, and feeds back ACK information to the WIFI module after the data frame is successfully checked; feeding NAK information back to the WIFI module after verification fails; and if the number of times of the failure check on the same frame data reaches a first number of times, feeding back CAN information to the WIFI module.
That is to say, after transmitting one frame of data, the WIFI module waits for the reply of the display panel, and determines whether to send the next frame of data or resend the frame of data according to the reply information of the display panel, or exits from the upgrade state. Specifically, after the WIFI module sends a frame of data to the display panel, the display panel receives the frame of data, then checks the frame of data, and if the frame of data is correct after checking, feeds back ACK information to the WIFI module, the information represents that checking is correct, and the ACK information is confirmation information. And after the WIFI module receives the ACK information sent by the display panel, sending the next frame of data. And if the display panel finds that the data is wrong after verification, NAK information is sent, wherein the NAK information indicates that the display panel receives the data but the data is wrong, and the WIFI module resends the data of the frame after receiving the NAK information. However, if the data received by the display panel for multiple times continuously are checked to find that errors exist, the CAN information is fed back to the WIFI module, the information indicates that the checking times of the same frame data reach a first time, when the WIFI module receives the CAN information, the upgrading state is quitted, the second baud rate is switched to the first baud rate, and the upgrading is finished. Currently, the display panel will also exit the boot mode after sending the CAN message.
The first number may be set as needed, for example, 10.
In one embodiment, the data transmission process may further include:
after first frame data of the firmware upgrade package is sent to the display panel, if a transmission starting command sent by the display panel is received, the first frame data is sent again; if receiving the notification information of exiting the guide mode sent by the display panel, exiting the upgrading state and switching a transmission channel to the first baud rate;
if the display panel does not receive the first frame data within a third time length after the transmission starting command is sent, the transmission starting command is sent to the WIFI module once every fourth time length until the first frame data is received; and if the number of times of continuously sending the transmission starting command reaches a second number of times, exiting the guide mode and informing the WIFI module.
It can be seen that the above process is primarily directed to the first frame data. Specifically, after the WIFI module sends the first frame data, but the display panel does not receive the first frame data within a certain time (for example, 2s) after sending the transmission start command, the display panel sends the transmission start command once at certain time (for example, 1 s). If the WIFI module receives the transmission starting command after the first frame data is sent, the display panel does not receive the first frame data, and the first frame data is sent again at the moment. If the display panel receives the first frame data within a certain time after transmitting the start transmission command once, the start transmission command is not transmitted any more. However, if the display panel does not receive the first frame data after continuously sending the start transmission command for the second time (for example, 15 times), the problem occurs in the transmission channel between the display panel and the WIFI module. At this time, the display panel exits the boot mode and notifies the WIFI module. After receiving the notification, the WIFI module exits the upgrading state, switches the second baud rate to the first baud rate, and ends the upgrading.
As can be seen, when transmission is started, the WIFI module sets a time limit, i.e., a first duration (e.g., 15s), for receiving a start transmission command after sending a firmware transmission request; a maximum number of times that the transmission start command is continuously transmitted when the first frame data is not received, that is, a second number of times (for example, 15 times), is also set in the display panel; the purpose of these settings is to ensure the success rate of the upgrade.
S140, after the transmission of the firmware upgrade package is finished, acquiring upgraded software and hardware information from the display panel; judging whether the electric control software is successfully upgraded according to the software and hardware information before and after upgrading;
namely, after the transmission is completed, the WIFI module can circularly send software and hardware information inquiry commands to the display panel to wait for the reply of the display panel. After the WIFI module receives the software and hardware information replied by the display panel, the software and hardware information obtained in S110 and the software and hardware information obtained in S140 can be compared, so as to determine whether the upgrade of the electronic control software is successful.
In one embodiment, in S140, after the firmware upgrade package is transmitted, before acquiring the upgraded software and hardware information from the display panel, the method provided in the embodiment of the present invention may further include:
after the firmware upgrade package is transmitted, sending an EOT command to the display panel;
if the confirmation information fed back by the display panel aiming at the EOT command is received, exiting the upgrading state and switching the transmission channel to the first baud rate;
and if the display panel receives the EOT command, exiting the guide mode and feeding back confirmation information aiming at the EOT command.
That is to say, after the firmware upgrade package is transmitted, the WIFI module may send an EOT command to the display panel in a cycle, and wait for a reply from the display panel, where the command is used to inform the display panel that the data transmission is completed. After the display panel receives the EOT command, the display panel replies a confirmation message to the WIFI module and exits the boot mode. And when the WIFI module receives the confirmation information, the WIFI module exits the upgrading state and is switched to the first baud rate from the second baud rate.
After the WIFI module exits the upgrading state, software and hardware information inquiry instructions are sent to the display panel in a circulating mode so as to inquire the upgraded software and hardware information and wait for the reply of the display panel. After receiving the software and hardware information replied by the display panel, the comparison and analysis can be carried out, thereby determining whether the upgrade is successful.
In one embodiment, the step of determining whether the upgrade of the electronic control software is successful in S140 may include: if the other information except the software version number in the software and hardware information before and after upgrading is uniform, corresponding and the same, and the software version number in the software and hardware information after upgrading is higher than the software version number in the software and hardware information before upgrading, the upgrading is successful; otherwise, the upgrade fails.
For example, through comparison, the software and hardware information before and after upgrade is the same except for the software version number, and the software version number v2 after upgrade is higher than the software version number v1 before upgrade, it is seen that upgrade is successful. The comparison is carried out again during the inquiry, so that the consistency of the firmware upgrade package inquired from the cloud, the downloaded firmware upgrade package and the installed firmware upgrade package can be ensured.
S150, if the upgrade is successful, marking the position 0 of the storage backup area; if the upgrade fails, marking the position 1 of the storage backup area; after the intelligent household appliance is restarted, if the flag bit is 1, returning to the step of sending a firmware transmission request to the display panel; if the flag bit is 0, the method is ended.
That is, if the upgrade is successful, the flag bit of the backup area of the flash is set to 0, so that after the next device restart, the flag bit of the backup area is known to be 0, which indicates that the upgrade is successful, and the firmware upgrade package cannot be reinstalled. If the upgrade fails, the mark position 1 of the flash indicates that the downloaded firmware upgrade package is stored in the backup area, but the upgrade fails last time. Therefore, when the intelligent household appliance is restarted and the flag bit of the backup area is found to be 1, a firmware transmission request is sent to the display panel, or an upgrading request is sent to the display panel for upgrading again. Since the firmware upgrade package is stored in the backup area, the firmware upgrade package does not need to be downloaded from the cloud.
After each upgrade is completed, no matter the upgrade is successful or failed, as long as the upgrade state is exited, the WIFI module and the display panel can return to a normal user program for conventional control.
In fact, no matter what kind of reason causes the upgrade failure, as long as the firmware upgrade package is downloaded in the backup area of the WIFI module, the flag bit of the backup area is set to 1, so that after the home appliance is restarted, the upgrade is performed again until the upgrade is successful. That is to say, because the firmware upgrade package is stored in the backup area of the flash of the WIFI module in advance, if an abnormality occurs in the upgrade process, the flag bit of the flash of the WIFI module can be directly read when the device is restarted, and the transmission of the firmware upgrade package is performed again until the upgrade is successful. Therefore, in most cases, the upgrade can be successful at one time, and sometimes needs to be successful for multiple times. In a word, the upgrade can be successful finally no matter after several upgrade processes, and the method provided by the embodiment of the invention can basically ensure that the upgrade success rate is one hundred percent.
In an embodiment of the present invention, the upgrading process may specifically include the following:
firstly, a firmware upgrade package of the electric control software of the intelligent household appliance is deployed in advance on the cloud. When the intelligent household appliance is powered on, the WIFI module circularly inquires hardware description information corresponding to the electric control software until the hardware description information returns, and simultaneously records the software version number V1 of the electric control software at the moment. And then the WIFI module detects whether a new version exists from the cloud end through a new checking interface. And if the firmware is of the new version, downloading the firmware upgrading package from the cloud to a backup area of the flash of the WIFI module. And after the firmware upgrading package is completely downloaded into the flash of the WIFI module, the WIFI module sends an upgrading request to the display panel and simultaneously switches to an upgrading state and a second baud rate. And the display panel is restarted after receiving the upgrading request and enters a boot mode. And the WIFI module sends a firmware transmission instruction to the display panel, and the WIFI module and the display panel are transmitted through an Xmodem protocol. Among them, XMODEM protocol is an asynchronous file transfer protocol widely used in personal computer communication using a dial-up modem. This protocol transfers data in 128 byte blocks and each block uses a checksum process for error detection.
Then, when Xmodem transmission is carried out, the display panel firstly sends a transmission starting command, negotiates a verification mode and informs the WIFI module to start data transmission. If the WIFI module receives a transmission starting command of the display panel within a certain time (for example, 15 seconds), sending first frame data to the display panel; if the starting transmission command of the display panel is not received, the upgrading state is exited, and the default first baud rate is switched back. Judging whether the display panel receives a first frame data packet sent by the WIFI module, if so, checking the display panel, and if so, replying ACK information; and if the error is checked, the NAK information is replied, the data of the frame is received again, and if the error data frame is received for many times continuously, the CAN information is sent, and the upgrading is cancelled. Also, if the display panel does not receive the first frame data for a certain time (e.g., 2 seconds) during which the start transmission command is transmitted, the start transmission command is transmitted once every certain time (e.g., 1 second), and if the first frame data is not received even after being continuously transmitted a plurality of times (e.g., 15 times), the display panel exits the booting mode. After the display panel receives a frame of data, the WIFI module transmits the data package to the display panel in a circulating mode until the firmware upgrading package is transmitted.
And then, after the transmission is finished, the WIFI module exits the upgrading state and switches back to the default first baud rate, and the display panel can be restarted at the moment. And the WIFI module circularly inquires the upgraded software and hardware information until the information is returned, and simultaneously records the version number V2 of the electronic control software at the moment. Comparing the version number V1 before upgrading with the version number V2 after upgrading, and if V2 is greater than V1, the electronic control software is upgraded successfully; otherwise, the electronic control software fails to be upgraded. And finally, returning the WIFI module and the display panel to a normal user program for performing conventional control.
In the above embodiment, in order to ensure upgrading of a specified type device and ensure the status consistency of the upgrade package when the firmware upgrade package is deployed at the cloud, the software and hardware information includes information such as an SN number of the intelligent appliance, a type of the electronic control software, a software version number, and a hardware version number. When the firmware upgrade package is transmitted, a fault tolerance mechanism is added, whether the WIFI module receives a starting transmission command replied by the display panel within a certain time after the WIFI module sends the firmware transmission command, and whether the display panel receives first frame data after continuously sending the starting transmission command for multiple times. In addition, the intelligent household appliance can be interfered by environment and self factors during actual operation, packet loss can exist when the WIFI module is communicated with the display panel, in order to prevent the display panel from changing bricks in the upgrading process, an upgrading quitting instruction is added, communication detection is carried out on the WIFI module and the display panel for a certain time, and if the correct instruction is not received after the certain time is exceeded, the upgrading state and the guiding mode are quitted. When the electronic control software is restarted, the firmware upgrading package stored locally is used for upgrading again until the upgrading is successful, so that the firmware upgrading package downloaded from the cloud end every time can be correctly upgraded, the upgrading success rate can reach one hundred percent, and the upgrading efficiency and the upgrading success rate of the electronic control software can be greatly improved by the method provided by the embodiment of the invention.
In a second aspect, an embodiment of the present invention provides a device for remotely upgrading electronic control software of an intelligent appliance, where the device is located in a WIFI module in the intelligent appliance, and referring to fig. 4, the device includes:
the first acquisition module is used for acquiring software and hardware information from a display panel of the intelligent household appliance and inquiring whether a firmware upgrading package of electric control software of the display panel exists in a cloud end according to the software and hardware information;
the firmware downloading module is used for downloading the firmware upgrading package to a storage backup area of the WIFI module if the firmware upgrading package exists, and sending a firmware transmission request to the display panel after the firmware upgrading package is downloaded;
the firmware transmission module is used for sending the firmware upgrading packets in the storage backup area to the display panel frame by frame if a starting transmission command fed back by the display panel is received within a first time period after the firmware transmission request is sent;
the second acquisition module is used for acquiring the upgraded software and hardware information from the display panel after the transmission of the firmware upgrade package is finished; judging whether the electric control software is successfully upgraded according to the software and hardware information before and after upgrading;
the upgrading confirmation module is used for marking the position 0 of the storage backup area if the upgrading is successful; if the upgrade fails, marking the position 1 of the storage backup area; after the intelligent household appliance is restarted, if the flag bit is 1, returning to the firmware downloading module to execute the step of sending a firmware transmission request to the display panel; and if the flag bit is 0, ending the upgrading process provided by the device.
In one embodiment, the software and hardware information includes an SN number of the intelligent appliance, a model number of the electronic control software, a software version number and a hardware version number of the electronic control software;
correspondingly, the first obtaining module includes:
the first query unit is used for querying whether a firmware upgrade package meeting preset conditions exists in the cloud; wherein the preset conditions are as follows: the SN number of the intelligent household appliance, the model number of the electric control software and the hardware version number of the electric control software corresponding to the firmware upgrading packet are respectively in one-to-one correspondence with the SN number of the intelligent household appliance, the model number of the electric control software and the hardware version number of the electric control software obtained from the display panel, and the software version number of the firmware upgrading packet is higher than the software version number obtained from the display panel;
and the first determining unit is used for determining that the firmware upgrading package of the electric control software of the display panel exists in the cloud if the firmware upgrading package meeting the preset condition exists.
In one embodiment, the step executed by the second obtaining module "judging whether the electronic control software is successfully upgraded according to the software and hardware information before and after upgrading" specifically includes: if the other information except the software version number in the software and hardware information before and after upgrading is uniform, corresponding and the same, and the software version number in the software and hardware information after upgrading is higher than the software version number in the software and hardware information before upgrading, the upgrading is successful; otherwise, the upgrade fails.
In one embodiment, the firmware downloading module is further configured to, after the downloading of the firmware upgrade package is completed and before sending the firmware transmission request to the display panel: sending an upgrading request to the display panel, switching to an upgrading state, and switching a transmission channel to a second baud rate at the current first baud rate; wherein the second baud rate is higher than the first baud rate; judging whether the confirmation information fed back by the display panel is received within a second time length after the upgrading request is sent; if yes, executing the step of sending a firmware transmission request to the display panel; otherwise, quitting the upgrading state and switching the transmission channel to the first baud rate; and the display panel is restarted after receiving the upgrading request, enters a guide mode after being restarted, and feeds back confirmation information in the guide mode.
In one embodiment, the apparatus may further comprise:
the upgrading quitting module is used for quitting the upgrading state and switching the transmission channel to the first baud rate after receiving a quitting upgrading command sent by the display panel; and if the display panel does not receive the firmware transmission request after the display panel enters the boot mode for a second time period, exiting the boot mode and sending the update exiting command to the WIFI module.
In one embodiment, the firmware transfer module includes:
the first receiving unit is used for receiving feedback information sent by the display panel after each frame of data of the firmware upgrade package is sent to the display panel;
the first processing unit is used for sending the next frame data of the firmware upgrading packet to the display panel if the feedback information is ACK information; if the feedback information is NAK information, current frame data is sent to the display panel again; if the feedback information is CAN information, exiting the upgrading state and switching a transmission channel to the first baud rate; after receiving each frame of data, the display panel checks the data frame, and feeds back ACK information to the WIFI module after the data frame is successfully checked; feeding back NAK information to the WIFI module after the verification fails; and if the number of times of the failure check on the same frame data reaches a first number of times, feeding back CAN information to the WIFI module.
In one embodiment, the apparatus further comprises:
the second processing unit is used for retransmitting the first frame data if a transmission starting command sent by the display panel is received after the first frame data of the firmware upgrading package is sent to the display panel; if receiving the notification information of exiting the guide mode sent by the display panel, exiting the upgrading state and switching a transmission channel to the first baud rate; if the display panel does not receive the first frame data within a third time length after the transmission starting command is sent, the transmission starting command is sent to the WIFI module once every fourth time length until the first frame data is received; and if the number of times of continuously sending the transmission starting command reaches a second number of times, exiting the guide mode and informing the WIFI module.
In one embodiment, the second obtaining module is further configured to, after the firmware upgrade package is completely transmitted, before obtaining the upgraded software and hardware information from the display panel: after the firmware upgrade package is transmitted, sending an EOT command to the display panel; if the confirmation information fed back by the display panel aiming at the EOT command is received, exiting the upgrading state and switching the transmission channel to the first baud rate; and if the display panel receives the EOT command, exiting the guide mode and feeding back confirmation information aiming at the EOT command.
It is to be understood that for the explanation, the detailed description, the beneficial effects, the examples and the like of the related contents in the apparatus provided in the embodiment of the present invention, reference may be made to the corresponding parts in the method provided in the first aspect, and details are not described herein again.
In a third aspect, an embodiment of the present invention provides a computing device, including: at least one memory and at least one processor; the at least one memory to store a machine readable program; the at least one processor is configured to invoke the machine-readable program to perform the method provided by the first aspect.
It is to be understood that for the explanation, the detailed description, the beneficial effects, the examples and the like of the related contents in the device provided in the embodiment of the present invention, reference may be made to the corresponding parts in the method provided in the first aspect, and details are not described here.
In a fourth aspect, the present invention provides a computer-readable medium, on which computer instructions are stored, and when executed by a processor, the computer instructions cause the processor to execute the method provided in the first aspect.
Specifically, a system or an apparatus equipped with a storage medium on which software program codes that realize the functions of any of the above-described embodiments are stored may be provided, and a computer (or a CPU or MPU) of the system or the apparatus is caused to read out and execute the program codes stored in the storage medium.
In this case, the program code itself read from the storage medium can realize the functions of any of the above-described embodiments, and thus the program code and the storage medium storing the program code constitute a part of the present invention.
Examples of the storage medium for supplying the program code include a floppy disk, a hard disk, a magneto-optical disk, an optical disk (e.g., CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD + RW), a magnetic tape, a nonvolatile memory card, and a ROM. Alternatively, the program code may be downloaded from a server computer via a communications network.
Further, it should be clear that the functions of any one of the above-described embodiments may be implemented not only by executing the program code read out by the computer, but also by causing an operating system or the like operating on the computer to perform a part or all of the actual operations based on instructions of the program code.
Further, it is to be understood that the program code read out from the storage medium is written to a memory provided in an expansion board inserted into the computer or to a memory provided in an expansion module connected to the computer, and then causes a CPU or the like mounted on the expansion board or the expansion module to perform part or all of the actual operations based on instructions of the program code, thereby realizing the functions of any of the above-described embodiments.
It is to be understood that for the explanation, the detailed description, the beneficial effects, the examples and the like of the contents in the computer-readable medium provided in the embodiment of the present invention, reference may be made to the corresponding parts in the method provided in the first aspect, and details are not described here.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference may be made to the partial description of the method embodiment for relevant points.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this disclosure may be implemented in hardware, software, hardware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.
Claims (10)
1. A remote upgrading method for electric control software of an intelligent household appliance is characterized by being executed by a WIFI module in the intelligent household appliance, and comprises the following steps:
acquiring software and hardware information from a display panel of the intelligent household appliance, and inquiring whether a firmware upgrade package of electric control software of the display panel exists in a cloud end according to the software and hardware information;
if the firmware upgrade package exists, downloading the firmware upgrade package to a storage backup area of the WIFI module, and sending a firmware transmission request to the display panel after the firmware upgrade package is downloaded;
if a starting transmission command fed back by the display panel is received within a first time after the firmware transmission request is sent, sending the firmware upgrading packets in the storage backup area to the display panel frame by frame;
after the transmission of the firmware upgrading package is completed, acquiring upgraded software and hardware information from the display panel; judging whether the electric control software is successfully upgraded according to the software and hardware information before and after upgrading;
if the upgrade is successful, marking the position 0 of the storage backup area; if the upgrade fails, marking the position 1 of the storage backup area; after the intelligent household appliance is restarted, if the flag bit is 1, returning to the step of sending a firmware transmission request to the display panel; if the flag bit is 0, the method is ended.
2. The method of claim 1, wherein the software and hardware information includes an SN number of the intelligent appliance, a model number of the electronic control software, a software version number of the electronic control software, and a hardware version number;
correspondingly, the querying whether a firmware upgrade package of the electronic control software of the display panel exists in the cloud according to the software and hardware information includes:
inquiring whether a firmware upgrading package meeting preset conditions exists in the cloud; wherein the preset conditions are as follows: the SN number of the intelligent household appliance, the model number of the electric control software and the hardware version number of the electric control software corresponding to the firmware upgrading packet are respectively in one-to-one correspondence with the SN number of the intelligent household appliance, the model number of the electric control software and the hardware version number of the electric control software obtained from the display panel, and the software version number of the firmware upgrading packet is higher than the software version number obtained from the display panel;
and if the firmware upgrading package meeting the preset condition exists, the firmware upgrading package of the electric control software of the display panel exists in the cloud.
3. The method according to claim 2, wherein the determining whether the electronic control software is successfully upgraded according to the software and hardware information before and after upgrading comprises:
if the other information except the software version number in the software and hardware information before and after upgrading is uniform, corresponding and the same, and the software version number in the software and hardware information after upgrading is higher than the software version number in the software and hardware information before upgrading, the upgrading is successful; otherwise, the upgrade fails.
4. The method of claim 1, wherein after the firmware upgrade package is downloaded and before the firmware transmission request is sent to the display panel, the method further comprises:
sending an upgrading request to the display panel, switching to an upgrading state, and switching a transmission channel to a second baud rate at the current first baud rate; wherein the second baud rate is higher than the first baud rate;
judging whether the confirmation information fed back by the display panel is received within a second time length after the upgrading request is sent;
if yes, executing the step of sending a firmware transmission request to the display panel;
otherwise, quitting the upgrading state and switching the transmission channel to the first baud rate;
and the display panel is restarted after receiving the upgrading request, enters a guide mode after being restarted, and feeds back confirmation information in the guide mode.
5. The method of claim 4, further comprising:
if an upgrade quitting command sent by the display panel is received, quitting the upgrade state, and switching a transmission channel to the first baud rate;
and if the display panel does not receive the firmware transmission request after the display panel enters the boot mode for a second time period, exiting the boot mode and sending the exit upgrading command to the WIFI module.
6. The method of claim 4, wherein sending the firmware upgrade package in the storage backup area to the display panel frame by frame comprises:
after each frame of data of the firmware upgrade package is sent to the display panel, receiving feedback information sent by the display panel;
if the feedback information is ACK information, sending the next frame data of the firmware upgrade package to the display panel; if the feedback information is NAK information, resending the current frame data to the display panel; if the feedback information is CAN information, exiting the upgrading state and switching a transmission channel to the first baud rate;
after receiving each frame of data, the display panel checks the data frame, and feeds back ACK information to the WIFI module after the data frame is successfully checked; feeding NAK information back to the WIFI module after verification fails; and if the number of times of the failure check on the same frame data reaches a first number of times, feeding back CAN information to the WIFI module.
7. The method of claim 6, further comprising:
after first frame data of the firmware upgrade package is sent to the display panel, if a transmission starting command sent by the display panel is received, the first frame data is sent again; if receiving the notification information of exiting the guide mode sent by the display panel, exiting the upgrading state and switching a transmission channel to the first baud rate;
if the display panel does not receive the first frame data within a third time length after the transmission starting command is sent, the transmission starting command is sent to the WIFI module once every fourth time length until the first frame data is received; and if the number of times of continuously sending the transmission starting command reaches a second number of times, exiting the guide mode and informing the WIFI module.
8. The method of claim 4, wherein before obtaining the upgraded software and hardware information from the display panel after the firmware upgrade package is transmitted, the method further comprises:
after the firmware upgrade package is transmitted, sending an EOT command to the display panel;
if the confirmation information fed back by the display panel aiming at the EOT command is received, exiting the upgrading state and switching the transmission channel to the first baud rate;
and if the display panel receives the EOT command, exiting the guide mode and feeding back confirmation information aiming at the EOT command.
9. The utility model provides a long-range upgrading device of automatically controlled software of intelligent household electrical appliances which characterized in that is arranged in the WIFI module of intelligent household electrical appliances, the device includes:
the first acquisition module is used for acquiring software and hardware information from a display panel of the intelligent household appliance and inquiring whether a firmware upgrading package of electric control software of the display panel exists in a cloud end according to the software and hardware information;
the firmware downloading module is used for downloading the firmware upgrading package to a storage backup area of the WIFI module if the firmware upgrading package exists, and sending a firmware transmission request to the display panel after the firmware upgrading package is downloaded;
the firmware transmission module is used for sending the firmware upgrading packets in the storage backup area to the display panel frame by frame if a starting transmission command fed back by the display panel is received within a first time period after the firmware transmission request is sent;
the second acquisition module is used for acquiring the upgraded software and hardware information from the display panel after the transmission of the firmware upgrade package is finished; judging whether the electric control software is successfully upgraded according to the software and hardware information before and after upgrading;
the upgrading confirmation module is used for marking the position 0 of the storage backup area if the upgrading is successful; if the upgrade fails, marking the position 1 of the storage backup area; after the intelligent household appliance is restarted, if the flag bit is 1, returning to the firmware downloading module to execute a step of sending a firmware transmission request to the display panel; and if the flag bit is 0, ending the upgrading process provided by the device.
10. A computer readable medium having stored thereon computer instructions which, when executed by a processor, cause the processor to perform the method of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210840224.8A CN115113901A (en) | 2022-07-18 | 2022-07-18 | Remote upgrading method, device and medium for electric control software of intelligent household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210840224.8A CN115113901A (en) | 2022-07-18 | 2022-07-18 | Remote upgrading method, device and medium for electric control software of intelligent household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115113901A true CN115113901A (en) | 2022-09-27 |
Family
ID=83332888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210840224.8A Pending CN115113901A (en) | 2022-07-18 | 2022-07-18 | Remote upgrading method, device and medium for electric control software of intelligent household appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115113901A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115480802A (en) * | 2022-10-18 | 2022-12-16 | 深圳市兆兴博拓科技股份有限公司 | Lithium battery BMS Internet of things system updating method, device, medium and equipment |
| CN117992091A (en) * | 2024-04-02 | 2024-05-07 | 深圳朗田亩半导体科技有限公司 | Firmware upgrading method and system based on file feature description |
-
2022
- 2022-07-18 CN CN202210840224.8A patent/CN115113901A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115480802A (en) * | 2022-10-18 | 2022-12-16 | 深圳市兆兴博拓科技股份有限公司 | Lithium battery BMS Internet of things system updating method, device, medium and equipment |
| CN115480802B (en) * | 2022-10-18 | 2023-04-25 | 深圳市兆兴博拓科技股份有限公司 | Lithium battery BMS (battery management system) Internet of things system updating method, device, medium and equipment |
| CN117992091A (en) * | 2024-04-02 | 2024-05-07 | 深圳朗田亩半导体科技有限公司 | Firmware upgrading method and system based on file feature description |
| CN117992091B (en) * | 2024-04-02 | 2024-06-07 | 深圳朗田亩半导体科技有限公司 | Firmware upgrading method and system based on file feature description |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115113901A (en) | Remote upgrading method, device and medium for electric control software of intelligent household appliance | |
| CN104915237A (en) | Upgrading method and upgrading control method of Bluetooth device firmware program, and equipment | |
| CN101958799B (en) | Method, device and system for updating terminal | |
| EP3011446B1 (en) | Synchronized update of multiple devices in a local network | |
| CN101778378B (en) | Firmware node updating method, device and system | |
| CN101951391A (en) | Method, device and system for remotely upgrading monitoring equipment | |
| US7200643B2 (en) | Controller and controlling method thereof | |
| CN110633097A (en) | OTA (over the air) upgrading method and device for single chip microcomputer | |
| CN112104487B (en) | Remote upgrading method of Internet of things terminal, internet of things master station and storage medium | |
| CN113721966B (en) | Node upgrading method and device, storage medium and electronic device | |
| CN111240713A (en) | Method for detecting remote breakpoint continuous transmission through power utilization | |
| CN102693142A (en) | Network adaptation method and device | |
| CN111901419B (en) | Method, device and equipment for upgrading household appliance bottom plate | |
| JP2003051796A (en) | Downloading system | |
| WO2008100114A1 (en) | Method for transmitting data transmitted incompletely between server and client | |
| CN113746892A (en) | Remote upgrading method and wireless terminal equipment | |
| EP2391062A1 (en) | Method and apparatus for realizing remote control of devices through network address configuration server | |
| CN114915671A (en) | NB-IoT-based remote upgrading method for street lamp controller | |
| CN112395237A (en) | Method and system for communication between at least two controllers | |
| WO2017049557A1 (en) | Adapter upgrade method, mobile terminal, and adapter | |
| CN104618802A (en) | Mobile terminal, network set-top box based on Android and system recovery method thereof | |
| CN112865990B (en) | File upgrading method, system and device | |
| CN114440389A (en) | Air conditioner, method of upgrading the same, computer device, and computer-readable storage medium | |
| CN115129349A (en) | Online upgrading method, device, equipment and medium for electronic control firmware | |
| CN116107618A (en) | Flowmeter controller upgrading method, computer equipment and storage medium |
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 |