CN113746892B - Remote upgrading method and wireless terminal equipment - Google Patents
Remote upgrading method and wireless terminal equipment Download PDFInfo
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- CN113746892B CN113746892B CN202110727199.8A CN202110727199A CN113746892B CN 113746892 B CN113746892 B CN 113746892B CN 202110727199 A CN202110727199 A CN 202110727199A CN 113746892 B CN113746892 B CN 113746892B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims description 20
- 238000004590 computer program Methods 0.000 claims description 9
- 238000004806 packaging method and process Methods 0.000 abstract description 6
- 238000012795 verification Methods 0.000 description 6
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- 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
- H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters
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- G—PHYSICS
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Abstract
The invention provides a remote upgrading method, which comprises the following steps: the wireless terminal equipment inquires whether the main board is upgraded or not, and if the main board is received to allow the upgrade to be returned, the upgrade data packet is downloaded from the server to the local at one time; and packaging the upgrading data packets, sending small data packets to the main board one by one, and receiving the upgrading result replied by the main board. The invention also provides wireless terminal equipment. Through the steps, the method is compatible with a remote upgrading method and a transmission type remote upgrading mode of local subcontracting and reissuing of the wireless terminal, so that the upgrading mode of the unit main board is diversified, more units can be compatible for upgrading, and the smooth upgrading of the unit main board is effectively ensured.
Description
Technical Field
The present invention relates to the field of remote upgrade technologies, and in particular, to a remote upgrade method and a wireless terminal device.
Background
In general, a remote upgrading of a heat pump unit adopts a DTU transmission mode, a server directly communicates with a main control board of equipment through DTU transmission, the DTU is only a transmission communication tool, and a main board can only receive data packets with shorter length at one time. The server needs to unpack the data for many times to carry out data transmission with the mainboard, and in the transmission process of the server, abnormal conditions such as data opposite flushing, network interruption and the like exist, so that the risk of data packet loss is caused, and a retransmission mechanism is started, so that excessive traffic loss is caused.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a remote upgrading method which reduces the load of a server and better realizes simultaneous upgrading of a plurality of devices.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A remote upgrade method comprising the steps of: the wireless terminal equipment inquires whether the main board is upgraded or not, and if the main board is received to allow the upgrade to be returned, the upgrade data packet is downloaded from the server to the local at one time; the wireless terminal equipment packetizes the upgrade data packets, sends small data packets to the main board one by one, and receives upgrade results replied by the main board.
Preferably, before the wireless terminal device downloads the upgrade data packet from the server to the local, a request signal sent by the main board for executing sending the small data packet needs to be obtained.
Preferably, the receiving the upgrade result of the main board reply includes: the wireless terminal equipment acquires reply information of successful upgrading of the main board; or if the wireless terminal equipment acquires the reply information of the failure of the main board to receive the small data packet or the failure of the main board to upgrade, repeating the steps, if the steps are repeated to the preset times, the wireless terminal equipment main board acquires the reply information of the failure of the main board to receive the small data packet or the failure of the main board to upgrade, and quitting the upgrade.
Preferably, when the wireless terminal device transmits small data packets to the main board one by one,
If the reply information of the small data packet received by the main board is obtained, continuing to send the current small data packet; if get it
Taking the reply information of the small data packet received by the main board in error, namely retransmitting the current small data packet;
If receiving request information of a main board continuous transmission small data packet, sending a next small data packet;
and if the reply information of failure of the main board to receive the small data packet is obtained or the reply is overtime, retransmitting the current small data packet.
Preferably, the wireless terminal device sends small data packets to the main board one by one through 485 communication lines.
Preferably, before the wireless terminal equipment packetizes the upgrade data packet, the upgrade data packet needs to be checked; and after all the small data packets are sent to the main board, checking the small data packets is needed.
Preferably, if the wireless terminal device fails to download the upgrade data packet locally, the upgrade data packet can be repeatedly downloaded for a preset number of times.
Preferably, the method further comprises the following steps: the wireless terminal equipment fails or the wireless terminal equipment cannot download the upgrade data packet at one time, and the server upgrades the main board in a transparent transmission mode.
Preferably, the method comprises the following steps: if the wireless terminal device is powered off when sending small data packets to the main board one by one, after the power-off state is finished, the wireless terminal device starts to send the corresponding small data packets before the power-off state.
A wireless terminal device comprising a processor and a memory; the memory is used for storing a computer program; the processor is configured to execute the computer program and implement the remote upgrade method as described above when the computer program is executed.
The beneficial effects of the invention are as follows:
Through the steps, the method is compatible with a remote upgrading method and a transmission type remote upgrading mode of local subcontracting and reissuing of the wireless terminal, so that the upgrading mode of the unit main board is diversified, more units can be compatible for upgrading, and the smooth upgrading of the unit main board is effectively ensured.
Drawings
The invention is described in further detail below with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a remote upgrade method according to the present invention
FIG. 2 is a flow chart of a remote upgrade method according to the present invention;
FIG. 3 is a flow chart of sending small data packets to a motherboard one by one according to the present invention;
Fig. 4 is a schematic block diagram of a remote upgrade apparatus according to the present invention.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention are described in further detail below, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Referring to fig. 1 to 3, the remote upgrade method of the present invention includes the steps of:
S1, a wireless terminal device receives firmware information and a download address, and sends a software code version number of the firmware information to a main board to inquire whether the main board is upgraded;
S2, if the wireless terminal equipment receives the reply information of the main board for allowing upgrading, and receives a request signal sent by the main board for executing the sending of the small data packet, the upgrading data packet is downloaded from the server to the local at one time. If the wireless terminal equipment receives the reply information that the main board is not allowed to be upgraded, the upgrading process is exited and the reply information is reported to the server. If the wireless terminal device fails to download the upgrade data packet from the server to the local, the upgrade data packet can be repeatedly downloaded for a preset number of times, and the preset number of times is 5.
S3, after the downloading is completed, the wireless terminal equipment checks the upgrading data packet, and after the upgrading data packet passes the checking, the wireless terminal equipment packetizes the upgrading data packet, namely, the upgrading data packet is divided into small data packets;
the wireless terminal equipment checks the upgrade data packet, and specifically, the upgrade data packet is added with a check code; when the upgrade data packet is packetized, the check code is also split into several parts, each small data packet including a part. Therefore, the transmission speed of the server is effectively increased, the load of the server is greatly reduced, and the stable operation of the server is facilitated.
And S4, after the sub-packaging is completed, the wireless terminal equipment sends small data packets to the main board one by one through a 485 communication line, and after the sending is completed, the small data packets are checked, specifically, the wireless terminal equipment integrates the respective sub-check codes of all the small data packets and obtains a total check code, and the total check code is checked again. The wireless terminal equipment and the main board are in wired transmission through 485 communication lines, so that the data packet loss phenomenon caused by unstable signals, network interruption and other conditions is effectively reduced.
The wireless terminal device sends small data packets to the main board one by one, and the method comprises the following steps: if the wireless terminal equipment receives the reply information of the small data packet received by the main board correctly, continuing to send the current small data packet; if the wireless terminal equipment acquires the reply information of the small data packet received by the main board in error, retransmitting the current decimal packet; if the wireless terminal equipment receives the request information of the main board for continuously transmitting the small data packet, the wireless terminal equipment transmits the next small data packet; if the wireless terminal equipment acquires the reply information that the main board fails to receive the small data packet or the reply is overtime, the wireless terminal equipment resends the current small data packet.
After the main board receives the small data packets, the small data packets are checked, specifically, the respective sub-check codes of all the small data packets are integrated to obtain a total check code, and the total check code is compared with the total check received from the wireless terminal equipment before, so that the check is realized. And after the verification is finished, feeding back a verification result to the main board.
S5, if the wireless terminal equipment acquires that the reply information of the complete small data packet successfully received by the main board is completed and passes the verification, the reply information of successful upgrading of the main board is received; if the wireless terminal equipment acquires the reply information of the failure of the main board to receive the small data packet or the failure of the main board to upgrade, repeating the steps, if the steps are repeated to the preset times (the preset times are 3 times), the wireless terminal equipment acquires the reply information of the failure of the main board to receive the small data packet or the failure of the main board to upgrade, and quits the upgrade.
In the above-mentioned upgrading method, if the wireless terminal device fails or the wireless terminal device cannot download the upgrade data packet at one time, the server upgrades the main board through the transmission mode of the wireless terminal device, and the transmission mode upgrades the main board to mean that the server directly divides the data into small packets and sends the small packets to the main board, the main board reorganizes the small packets into the original upgrade data packet, and then the main board upgrades based on the upgrade data packet.
In the above upgrading method, if the wireless terminal device powers off when sending small data packets to the motherboard one by one, after the power off state is over, the upgrading program is restored, specifically comprising the following steps: and judging whether the transmission of all the small data packets is finished before the power failure, and if not, starting the transmission of the small data packets before the power failure state.
The server in the invention can be a local server or a cloud server. The cloud server can be an alicloud server; the local server may be CISC type server, such as the all-around server, NETSERVER server, etc. of HP company, and RISC type server, such as Alpha of Compaq (Conv/New Hewlett packard) company, PA-RISC of HP company, etc. with comprehensive server management capability and excellent system expansibility.
The wireless terminal equipment can be equipment capable of realizing wireless network transmission, such as DTU, wireless network card, smart phone, PC/notebook, internet-enabled television and the like; the wireless network transmission can realize an OTA interaction mode, namely the main board and the wireless terminal equipment realize OTA interaction, and the wireless terminal equipment and the server realize OTA interaction. The DTU is a wireless terminal device which is specially used for converting serial data into IP data or converting the IP data into the serial data to be transmitted through a wireless communication network.
The main board of the invention can be a main board of a heat pump unit, various air conditioner unit main boards and the like.
The data packet packetization and the generation of the original upgrade data packet on the main board can be performed by adopting the following scheme: the wireless terminal equipment acquires an upgrade data packet to be transmitted, and encapsulates the upgrade data to be transmitted into a command packet; when the data quantity of the command packet is larger than the preset data quantity, generating a starting packet, a plurality of data packets, an ending packet and a packet identification code; sequentially filling data into the initial packet, the data packets and the end packet; sequentially sending the filled initial packet, a plurality of data packets and the end packet to a main board; and analyzing and reorganizing the filled start packet, the plurality of data packets and the end packet to regenerate the upgrading data packet.
The following describes the method according to the present invention with an embodiment using DTU as a wireless terminal device:
S1, actively reporting a software and hardware code and a version number after a main board is electrified, and transmitting a communication address to a DTU; and the DTU reports the software and hardware codes, the version numbers and the communication addresses of the main board to the server. And meanwhile, the DTU receives the information that the server sends the version number successfully, and replies the information of successful reception to the main board.
S2, the server acquires an external instruction (the webpage end is clicked to be upgraded) to be upgraded, and firmware information and a downloading address are sent to the DTU; the firmware information includes URL address of the downloaded firmware, MD5 information, upgraded software code and version number.
And s3, after receiving the information sent by the server, the DTU sends a software code, a version number and a communication address of the firmware to the main board so as to inquire whether the main board needs to be upgraded.
And S4, the main board replies whether the upgrading is allowed or not to the DTU.
And S5, if the DTU acquires the reply information that the main board is not allowed to be upgraded, the DTU exits the upgrading process, and the DTU reports the main board not allowed to be upgraded to the server.
And S6, after the DTU acquires the reply information of the main board reporting permission of upgrading and receives a request signal of 'starting to send upgrading data' sent by the main board, downloading an upgrading data packet from the server. If the download fails, the download can be re-downloaded, but the number of re-downloads cannot exceed 5. Before the main board sends a request signal for starting to send upgrade data, the firmware size is further judged, if the firmware size exceeds a preset value, the firmware is reported that the upgrade is not allowed to the DTU, namely the upgrade process is exited, and the DTU is reported to the server.
And S7, after the DTU downloads the upgrade data packet, packaging the data packet. The downloaded upgrade data packet includes an MD5 check code, and the upgrade data packet needs to be checked before the subpackaging, and the subpackaging is performed after the check is passed.
S8, after the sub-packaging is completed, the DTU sends small data packets to the main board one by one, and the specific steps comprise:
And sending a small data packet to the main board, wherein the small data packet comprises a communication address, a total page number, a current page number and upgrade data. The main board replies information to the DTU based on the received small data packet, wherein the information comprises a communication address, whether the data packet is correct or not ' 0-incorrect/1-correct ', the receiving state is ' 0-receiving failure ', 1-continuing to receive and 2-receiving is completed '.
After each small data packet is sent, the next small data packet is sent.
When the motherboard replies "1-continue to receive" to the DTU, the DTU sends the next packet. When the DTU receives the reply message of 1-correct, the DTU can continue to send small data packets; if a reply message of "0-incorrect" is received, the message is retransmitted. When the master board replies 0-receiving failure to the DTU, the DTU retransmits, or the DTU does not receive the reply information, and retransmits after 5 s. When the DTU sends small data packets to the main board, the DTU reports a progress to the server every time a certain number of data packets are sent.
And S9, after the main board receives the small data packet, feeding back a progress including a communication address, 1-correct and 2-receiving completion to the DTU. And whether the main board receives successfully or fails, a receiving end mark is sent to the DTU, wherein the receiving end mark comprises a communication address and "3-data sending success".
And S10, after the main board receives the small data packet, the DTU needs to check the small data packet, and after the small data packet passes the check, the DTU replies successful check information to the main board.
And S11, after the main board receives the small data packet and receives the information of successful verification, the main board is updated.
And S12, after the main board is successfully upgraded, sending a sign of successful upgrading to the DTU, and replying successful upgrading information to the DTU.
In addition, in s11-s13, if the DTU fails to check the small data packet or the main board upgrade, the main board sends and receives an end mark, including a communication address, a "4-sent data failure"; the DTU replies a communication address and a 4-reply data transmission failure; the main board sends an upgrade flow completion flag including a communication address and a 6-upgrade failure. And replying an address and a 6-reply upgrade to the DTU fails.
Then, repeating the steps s1-s11, and repeating the steps for the third time, wherein the upgrade still fails, i.e. the upgrade is pushed out.
If step s9 is performed, the power is turned off, and after the power-off state is completed, the upgrade program is restored. The method specifically comprises the following steps:
a1, actively reporting a software and hardware code and a version number after the main board is electrified, and transmitting a communication address to the DTU; and the DTU reports the software and hardware codes, the version numbers and the communication addresses of the main board to the server.
A2, the DTU sends information of successful receiving the version number, specifically replies to the communication address and 7-replies to the version number, and sends the information to the main board.
And A3, judging whether the small data packet is sent before the power failure, and if the small data packet is not sent, starting to send the small data packet corresponding to the successful page number corresponding to the power failure state.
Referring to fig. 4, the present invention also provides a wireless terminal device, including the following modules:
The inquiry module is used for inquiring whether the main board is upgraded or not by the wireless terminal equipment;
The upgrade module is used for downloading the upgrade data packet from the server to the local at one time if receiving reply information of the mainboard allowing upgrade; the upgrading module comprises a confirmation module, and is used for acquiring a request signal which is sent by the main board and used for executing the sending of the small data packet before the wireless terminal equipment downloads the upgrading data packet from the server to the local.
The sub-packaging module is used for sub-packaging the upgrade data packet;
The sending module is used for sending the small data packets to the main board one by one; the sending module comprises a classified sending module and a classified sending module, wherein the classified sending module is used for continuously sending the current small data packet if the main board is obtained to correctly receive the reply information of the small data packet; if the reply information of the small data packet received by the main board in error is obtained, the current small data packet is retransmitted; if receiving request information of a main board continuous transmission small data packet, sending a next small data packet; and if the reply information of failure of the main board to receive the small data packet is obtained or the reply is overtime, retransmitting the current small data packet.
The receiving module is used for receiving the upgrade result replied by the main board;
The successful upgrading module is used for receiving reply information of successful mainboard upgrading obtained by the wireless terminal equipment;
And the repeated execution module is used for repeating the steps if the wireless terminal equipment acquires the reply information of the failure of the main board to receive the small data packet or the failure of the main board to upgrade, and if the steps are repeated to the preset times, the wireless terminal equipment main board acquires the reply information of the failure of the main board to receive the small data packet or the failure of the main board to upgrade, and the wireless terminal equipment main board exits from upgrade.
Further comprises: a verification module, the verification module comprising: the first checking module is used for checking the upgrade data packet before the wireless terminal equipment packetizes the upgrade data packet; and the second checking module is used for checking the small data packets after all the small data packets are sent to the main board.
The wireless terminal equipment also comprises a repeated downloading module which is used for repeatedly downloading the upgrade data packet with preset times if the wireless terminal equipment fails to download the upgrade data packet to the local.
The wireless terminal device further comprises a power-off continuous transmission module, wherein the power-off continuous transmission module is used for powering off when the wireless terminal device sends small data packets to the main board one by one, and after the power-off state is finished, the wireless terminal device starts to send the corresponding small data packets before the power-off state.
The invention also provides wireless terminal equipment, which comprises a processor and a memory; the memory is used for storing a computer program; the processor is used for executing the computer program and realizing the remote upgrading method of the heat pump unit DTU when executing the computer program.
The wireless terminal equipment can be equipment capable of realizing wireless network transmission, such as DTU, wireless network card, smart phone, PC/notebook, internet-enabled television and the like. The DTU is a wireless terminal device which is specially used for converting serial data into IP data or converting the IP data into the serial data to be transmitted through a wireless communication network.
The remote upgrading method reduces the load of the server, and can be used for upgrading a plurality of devices simultaneously and is easy to realize; the flow is reduced, so that the data packet loss phenomenon caused by the conditions of unstable signals, network interruption and the like is effectively reduced; the local OTA interaction can improve the OTA speed and is more beneficial to the subsequent large data volume transmission mode; the method for simultaneously and compatibly upgrading the DTU local and transparent OTA is realized, the upgrading modes of the unit main board are diversified, more units can be compatible, and the smooth upgrading of the unit main board is effectively ensured. The problem that when a plurality of unit mainboards need to be upgraded, the load of a server is large, and the server is easy to crash or jam, so that the upgrading is failed is further solved; the OTA mode of the direct interaction device of the server cannot adapt to the problem of the trend of increasing the speed and increasing the data packet in the future.
The term "comprising" and any variations thereof as referred to in the description herein is intended to cover non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to only those steps or modules but may include other steps or modules not listed or inherent to such process, method, article, or apparatus. The terms "first", "second" are used herein merely to distinguish between the descriptions and are not of special significance.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (9)
1. A method of remote upgrade comprising the steps of: the wireless terminal equipment inquires whether the main board is upgraded or not, and if the main board is received to allow the upgrade to be returned, the upgrade data packet is downloaded from the server to the local at one time; the wireless terminal equipment packetizes the upgrade data packets, sends small data packets to the main board one by one, and receives upgrade results replied by the main board; generating a small data packet back to an upgrade data packet on a main board;
The wireless terminal device packetizes the upgrade data packet, including:
The wireless terminal equipment acquires an upgrade data packet to be transmitted, and encapsulates the upgrade data to be transmitted into a command packet; when the data quantity of the command packet is larger than the preset data quantity, generating a starting packet, a plurality of data packets, an ending packet and a packet identification code; sequentially filling data into the initial packet, the data packets and the end packet; sequentially sending the filled initial packet, a plurality of data packets and the end packet to a main board;
Generating the small data packet back to the upgrade data packet on the main board comprises the following steps:
Analyzing and reorganizing the filled initial packet, the plurality of data packets and the end packet to regenerate the upgrade data packet;
before the wireless terminal device packetizes the upgrade data packet, the upgrade data packet needs to be checked, including:
before the wireless terminal equipment packetizes the upgrade data packet, a check code is added in the upgrade data packet; when the upgrade data packet is packetized, the check code is also split into a plurality of parts, and each small data packet comprises a part;
After all the small data packets are sent to the main board, the small data packets need to be checked, including:
And after all the small data packets are sent to the main board, integrating the respective division check codes of all the small data packets to obtain a total check code, and comparing the total check code with the check code of the upgrade data packet received from the wireless terminal equipment before.
2. The remote upgrade method according to claim 1, wherein the wireless terminal device obtains a request signal for performing the sending of the small data packet sent from the main board before downloading the upgrade data packet from the server to the local.
3. The remote upgrade method according to claim 1, wherein the receiving the upgrade result replied to the motherboard comprises:
The wireless terminal equipment acquires reply information of successful upgrading of the main board;
Or the wireless terminal equipment acquires the reply information of the failure of the main board to receive the small data packet or the failure of the main board to upgrade, repeats the steps, and if the steps are repeated for a preset number of times, the wireless terminal equipment acquires the reply information of the failure of the main board to receive the small data packet or the failure of the main board to upgrade, and exits the upgrade.
4. A remote upgrade method according to claim 1 or 2, characterized in that the wireless terminal is provided with
When the small data packets are sent to the main board one by one,
If the reply information of the small data packet received by the main board is obtained, continuing to send the next small data packet; if the reply information of the small data packet received by the main board in error is obtained, retransmitting the current small data packet;
If receiving request information of a main board continuous transmission small data packet, sending a next small data packet;
and if the reply information of failure of the main board to receive the small data packet is obtained or the reply is overtime, retransmitting the current small data packet.
5. A remote upgrade method according to any one of claims 1 to 3, wherein the wireless terminal device transmits small data packets to the main board one by one through 485 communication lines.
6. The remote upgrade method according to claim 1, wherein if the wireless terminal device fails to download the upgrade data packet locally, the download can be repeated a preset number of times.
7. The remote upgrade method according to claim 1, further comprising the steps of: the wireless terminal equipment fails or the wireless terminal equipment cannot download the upgrade data packet at one time, and the server upgrades the main board in a transparent transmission mode.
8. The remote upgrade method according to claim 1, comprising the steps of: if the wireless terminal device is powered off when sending small data packets to the main board one by one, after the power-off state is finished, the wireless terminal device starts to send the corresponding small data packets before the power-off state.
9. A wireless terminal device comprising a processor and a memory; the memory is used for storing a computer program; the processor for executing the computer program and for implementing the remote upgrade method according to any of the claims 1 to 8 when executing the computer program.
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| CN114584467A (en) * | 2022-04-23 | 2022-06-03 | 华邦创科(惠州市)智能科技有限公司 | Remote upgrading method for intelligent safety electricity utilization equipment |
| CN114866525B (en) * | 2022-05-19 | 2024-04-12 | 深圳市艾迪思特信息技术有限公司 | Remote online firmware upgrading method and system for embedded device in one master multi-slave mode |
| CN114884815A (en) * | 2022-07-11 | 2022-08-09 | 广州宇洪科技股份有限公司 | Broadband network terminal equipment with wireless upgrading awakening function and upgrading system thereof |
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