CN107273158B - Program upgrading method and device, host, slave and multi-split air conditioning system - Google Patents
Program upgrading method and device, host, slave and multi-split air conditioning system Download PDFInfo
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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- 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
Abstract
The invention provides a program upgrading method and a program upgrading device for a multi-split air-conditioning system, a host machine, a slave machine and the multi-split air-conditioning system, wherein the program upgrading method for the host machine of the multi-split air-conditioning system comprises the following steps: dividing the data of the upgrading program into a plurality of sections of program data; broadcasting and issuing each section of program data to each slave in a plurality of slaves of the multi-online air conditioning system respectively; and broadcasting a preset slave list to each slave, wherein the preset slave list is used for each slave to determine whether to upgrade the program according to each section of program data, and the preset slave list is expressed in a mask mode. By the technical scheme of the invention, the upgrading efficiency can be effectively improved, the upgrading cost is saved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of multi-split air conditioners, in particular to a program upgrading method of a multi-split air conditioner system, a program upgrading device of the multi-split air conditioner system, a host of the multi-split air conditioner system, a slave of the multi-split air conditioner system and the multi-split air conditioner system.
Background
The multi-split air conditioning system consists of a plurality of air conditioning subsystems, can realize the free combination of a plurality of outdoor units and a plurality of indoor units, and can reach 64 or more indoor units (hereinafter called slave units) at most.
In the process of engineering implementation or use of the multi-split air conditioning system, if the problem of the programs of the slave machines is found, the shells of all the slave machines are generally required to be opened one by one, and the programs loaded by the electric control board are updated, so that time and labor are wasted; in addition, program upgrading can be performed by adopting a bus communication mode, but because the bus transmission rate is generally slow, when the number of slave machines needing upgrading is large, long time is still needed for upgrading one by one.
According to the program upgrading scheme of the slave machine of the multi-split air conditioning system, the upgrading efficiency is too low, and poor experience is brought to users.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, an object of the present invention is to provide a new method for upgrading a program of a multi-split air conditioning system, which can effectively improve upgrading efficiency, and save time cost and labor cost for upgrading, thereby improving user experience.
Another object of the present invention is to provide a program upgrading apparatus for a multi-split air conditioning system and a multi-split air conditioning system, wherein the multi-split air conditioning system includes a master and a plurality of slaves.
To achieve at least one of the above objects, according to a first aspect of the present invention, there is provided a program upgrading method for a multi-split air conditioning system, for a main unit of the multi-split air conditioning system, the program upgrading method including: dividing the data of the upgrading program into a plurality of sections of program data; broadcasting and issuing each section of program data to each slave in the multiple slaves of the multi-split air conditioning system; and broadcasting a preset slave list to each slave, wherein the preset slave list is used for each slave to determine whether to upgrade the program according to each section of program data, and the preset slave list is represented in a mask mode.
In the technical scheme, when the programs of the slave machines of the multi-split air-conditioning system need to be upgraded, the data of the upgraded programs are divided into a plurality of sections of program data through the host machine of the multi-split air-conditioning system, and each section of program data is sequentially issued to each slave machine in a broadcasting mode, so that a large amount of transmission time can be saved, the data transmission burden can be reduced through the sectional transmission upgrading mode, the data transmission efficiency is improved, and the program upgrading efficiency is improved; furthermore, a preset slave machine list represented by a mask code needs to be issued to each slave machine, so that the slave machine determines whether the slave machine is in the same network as the host machine according to the preset slave machine list, and further determines whether to perform program upgrading according to the received program data, thereby ensuring the accuracy and the adaptability of the program upgrading. Therefore, the upgrading program divided into multiple sections and the preset slave list are sent to each slave in a broadcasting mode, the transmission rate of program data is improved, and meanwhile the slave needing program upgrading can be effectively ensured to accurately execute the program upgrading operation, so that the program upgrading efficiency is improved, and the user experience is improved.
In the foregoing technical solution, preferably, the method for upgrading a program of a multi-split air conditioning system further includes: and sending the check code corresponding to each section of program data to each slave machine in a unicast mode so that each slave machine can check each section of program data according to the check code.
In the technical scheme, after the multiple segments of program data of the upgrade program are respectively issued to the slaves in a broadcast manner, the check codes corresponding to the segments of program data are also required to be issued to the slaves in a unicast manner in a one-to-one correspondence manner, so that the slaves check the received segments of program data one by one, the accuracy of the program data is detected, and the program upgrade can be smoothly performed.
In any of the above technical solutions, preferably, the method for upgrading a program of a multi-split air conditioning system further includes: receiving a verification result of each slave machine on corresponding program data of each section according to the verification code; and after all the multiple sections of program data are broadcast and issued to each slave machine, sending the program data with the verification result of incorrect reception to the corresponding slave machine again for program upgrading.
In the technical scheme, when each slave machine checks each segmented program data according to the check code corresponding to each segment of program data and the segmented program data received by the slave machine is wrong in each check result fed back to the host machine, the received mistaken segmented program data needs to be retransmitted to the corresponding slave machine after the complete segmented program data is broadcast, namely, when the slave machine is upgraded again, the part which does not pass the check is upgraded only according to the checking condition of the upgrading program of each slave machine, so that the incremental upgrading of the segments and the breakpoint continuous transmission are realized, the upgrading efficiency is improved, and the accuracy and the completeness of the program upgrading can be effectively ensured.
In any one of the above technical solutions, preferably, the step of dividing the data of the upgrade program into multiple segments of program data includes: equally dividing the data of the upgrading program into the multiple sections of program data by taking preset bytes as units; and adding a fixed value to the last section of program data for supplementation when the last section of program data in the plurality of sections of program data is less than the preset byte.
In the technical scheme, an equivalent dividing form can be adopted when the upgrading program is divided into a plurality of sections of program data, so that high program segmenting efficiency is ensured, and further, if the divided last section of program is not enough than equal preset bytes, the program data can be supplemented in a fixed value form, so that the equivalent property of each section of program data is ensured; the size of the preset byte can be specifically set according to the size of the upgrading program so as to better meet the actual situation.
According to a second aspect of the present invention, there is provided a program upgrading apparatus of a multi-split air conditioning system for a host of the multi-split air conditioning system, the program upgrading apparatus including: the dividing module is used for dividing the data of the upgrading program into a plurality of sections of program data; the first sending module is used for respectively broadcasting and issuing each section of program data obtained by the dividing module to each slave machine in the multiple slave machines of the multi-split air-conditioning system; and the second sending module is used for sending a preset slave list to each slave machine in a broadcast manner, wherein the preset slave list is used for each slave machine to determine whether to perform program upgrading according to each section of program data, and the preset slave list is represented in a mask mode.
In the technical scheme, when the programs of the slave machines of the multi-split air-conditioning system need to be upgraded, the data of the upgraded programs are divided into a plurality of sections of program data through the host machine of the multi-split air-conditioning system, and each section of program data is sequentially issued to each slave machine in a broadcasting mode, so that a large amount of transmission time can be saved, the data transmission burden can be reduced through the sectional transmission upgrading mode, the data transmission efficiency is improved, and the program upgrading efficiency is improved; furthermore, a preset slave machine list represented by a mask code needs to be issued to each slave machine, so that the slave machine determines whether the slave machine is in the same network as the host machine according to the preset slave machine list, and further determines whether to perform program upgrading according to the received program data, thereby ensuring the accuracy and the adaptability of the program upgrading. Therefore, the upgrading program divided into multiple sections and the preset slave list are sent to each slave in a broadcasting mode, the transmission rate of program data is improved, and meanwhile the slave needing program upgrading can be effectively ensured to accurately execute the program upgrading operation, so that the program upgrading efficiency is improved, and the user experience is improved.
In the foregoing technical solution, preferably, the program upgrading apparatus further includes: and the third sending module is used for sending the check code corresponding to each section of program data to each slave machine in a unicast mode so that each slave machine can perform check on each corresponding section of program data according to the check code.
In the technical scheme, after the multiple segments of program data of the upgrade program are respectively issued to the slaves in a broadcast manner, the check codes corresponding to the segments of program data are also required to be issued to the slaves in a unicast manner in a one-to-one correspondence manner, so that the slaves check the received segments of program data one by one, the accuracy of the program data is detected, and the program upgrade can be smoothly performed.
In any one of the above technical solutions, preferably, the program upgrading apparatus further includes: the receiving module is used for receiving a verification result of each slave machine on each corresponding section of program data according to the verification code; and the control module is used for controlling to send the program data which is not correctly received as the verification result to the corresponding slave machines again for program upgrading after all the multiple sections of program data are broadcast and issued to each slave machine.
In the technical scheme, when each slave machine checks each segmented program data according to the check code corresponding to each segment of program data and the segmented program data received by the slave machine is wrong in each check result fed back to the host machine, the received mistaken segmented program data needs to be retransmitted to the corresponding slave machine after the complete segmented program data is broadcast, namely, when the slave machine is upgraded again, the part which does not pass the check is upgraded only according to the checking condition of the upgrading program of each slave machine, so that the incremental upgrading of the segments and the breakpoint continuous transmission are realized, the upgrading efficiency is improved, and the accuracy and the completeness of the program upgrading can be effectively ensured.
In any one of the above technical solutions, preferably, the dividing module includes: the dividing submodule is used for equally dividing the data of the upgrading program into the multiple sections of program data by taking preset bytes as units; and the adding submodule is used for adding a fixed value to the last section of program data to supplement when the last section of program data in the plurality of sections of program data is less than the preset byte.
In the technical scheme, an equivalent dividing form can be adopted when the upgrading program is divided into a plurality of sections of program data, so that high program segmenting efficiency is ensured, and further, if the divided last section of program is not enough than equal preset bytes, the program data can be supplemented in a fixed value form, so that the equivalent property of each section of program data is ensured; the size of the preset byte can be specifically set according to the size of the upgrading program so as to better meet the actual situation.
According to a third aspect of the present invention, a host of a multi-split air conditioning system is provided, which includes the program upgrading device of the multi-split air conditioning system as described in any one of the above second aspect. Therefore, the host of the multi-split air conditioning system has all the beneficial technical effects of the program upgrading device, and the details are not repeated herein.
According to a fourth aspect of the present invention, there is provided a program upgrading method for a multi-split air conditioning system, for each of a plurality of slave machines of the multi-split air conditioning system, the program upgrading method including: receiving a plurality of sections of program data transmitted by a host broadcast; receiving a preset slave list issued by the host broadcast, wherein the preset slave list is represented in a mask mode; and when the local computer is determined to be in the preset slave computer list, upgrading the program according to each section of program data in the plurality of sections of program data.
In the technical scheme, when the slave machines of the multi-split air-conditioning system need to update the program, the multi-segment program data issued by the host machine of the multi-split air-conditioning system in a broadcasting mode are sequentially received, the data receiving burden can be relieved through the segmented receiving mode, the data transmission efficiency is improved, and when the slave machines are determined to be in a preset slave machine list issued by the host machine and represented in a mask mode, the program updating is carried out according to each segment of program data in the received multi-segment program data, namely, the program updating is started when the slave machines are determined to be matched with the updating program composed of the received multi-segment program data, so that the accuracy and the adaptability of the program updating are ensured. By the technical scheme, the slave machine which needs to be upgraded can be effectively ensured to accurately execute the program upgrading operation while the program data transmission rate is improved, so that the program upgrading efficiency is improved, and the user experience is improved.
In the foregoing technical solution, preferably, the method for upgrading a program of a multi-split air conditioning system further includes: receiving a check code corresponding to each section of program data issued by the host unicast; checking each corresponding section of program data according to the check code; and feeding back a verification result corresponding to each section of program data to the host so that the host can send the corresponding program data again when the verification result is not received correctly.
In the technical scheme, in order to ensure that each section of received program data is a correct program which is not damaged in the transmission process, each section of program data can be further verified according to a check code which is issued by the host in a unicast mode and corresponds to each section of program data, and a verification result is fed back to the host, so that the host re-issues the section of program data of which the verification result is incorrectly received, the accuracy and the integrity of each section of received program data are ensured, the program can be smoothly upgraded, and the program upgrading efficiency is improved.
In any one of the above technical solutions, preferably, when it is determined that the local computer exists in the preset slave computer list, the step of performing program upgrade according to each piece of program data in the plurality of pieces of program data includes: and when the verification result is correct reception and the historical program data segment stored in the local computer is different from each segment of program data, upgrading the program according to each segment of program data, wherein the historical program data segment corresponds to each segment of program data.
In the technical solution, further, after it is determined that the received segmented program data is correct, the program upgrading operation may be started, specifically, each segment of program data needs to be compared with a corresponding historical program data segment already existing in the slave, if each segment of program data is different from the corresponding historical program data segment, the historical program data segment is upgraded, and if the segment of program data is not different from the corresponding historical program data segment, the upgrade is omitted, so as to avoid useless work, and further improve the program upgrading efficiency.
According to a fifth aspect of the present invention, there is provided a program upgrading apparatus for a multi-split air conditioning system, for each of a plurality of slaves of the multi-split air conditioning system, the program upgrading apparatus comprising: the first receiving module is used for receiving a plurality of sections of program data transmitted by the broadcast of the host; the second receiving module is used for receiving a preset slave list issued by the host broadcast, and the preset slave list is represented in a mask mode; and the program upgrading module is used for upgrading the program according to each section of program data in the plurality of sections of program data when the local computer is determined to be in the preset slave computer list.
In the technical scheme, when the slave machines of the multi-split air-conditioning system need to update the program, the multi-segment program data issued by the host machine of the multi-split air-conditioning system in a broadcasting mode are sequentially received, the data receiving burden can be relieved through the segmented receiving mode, the data transmission efficiency is improved, and when the slave machines are determined to be in a preset slave machine list issued by the host machine and represented in a mask mode, the program updating is carried out according to each segment of program data in the received multi-segment program data, namely, the program updating is started when the slave machines are determined to be matched with the updating program composed of the received multi-segment program data, so that the accuracy and the adaptability of the program updating are ensured. By the technical scheme, the slave machine which needs to be upgraded can be effectively ensured to accurately execute the program upgrading operation while the program data transmission rate is improved, so that the program upgrading efficiency is improved, and the user experience is improved.
In the foregoing technical solution, preferably, the program upgrading apparatus of the multi-split air conditioning system further includes: a third receiving module, configured to receive a check code corresponding to each piece of program data sent by the host unicast; the checking module is used for checking each section of program data according to the checking code; and the feedback module is used for feeding back the verification result corresponding to each section of program data to the host so that the host can send the corresponding program data again when the verification result is not received correctly.
In the technical scheme, in order to ensure that each section of received program data is a correct program which is not damaged in the transmission process, each section of program data can be further verified according to a check code which is issued by the host in a unicast mode and corresponds to each section of program data, and a verification result is fed back to the host, so that the host re-issues the section of program data of which the verification result is incorrectly received, the accuracy and the integrity of each section of received program data are ensured, the program can be smoothly upgraded, and the program upgrading efficiency is improved.
In any one of the above technical solutions, preferably, the program upgrading module is configured to: and when the verification result is correct reception and the historical program data segment stored in the local computer is different from each segment of program data, upgrading the program according to each segment of program data, wherein the historical program data segment corresponds to each segment of program data.
In the technical solution, further, after it is determined that the received segmented program data is correct, the program upgrading operation may be started, specifically, each segment of program data needs to be compared with a corresponding historical program data segment already existing in the slave, if each segment of program data is different from the corresponding historical program data segment, the historical program data segment is upgraded, and if the segment of program data is not different from the corresponding historical program data segment, the upgrade is omitted, so as to avoid useless work, and further improve the program upgrading efficiency.
According to a sixth aspect of the present invention, a slave of a multi-split air conditioning system is provided, which comprises the program upgrading device of the multi-split air conditioning system as described in any one of the above technical solutions of the fifth aspect. Therefore, the slave of the multi-split air conditioning system has all the beneficial technical effects of the program upgrading device, and the details are not repeated herein.
According to a seventh aspect of the present invention, there is further provided a multi-split air conditioning system, comprising the main machine of the multi-split air conditioning system according to the above third aspect; and a plurality of slave machines of the multi-split air conditioning system according to the technical scheme of the sixth aspect.
The master machine of the multi-split air-conditioning system and the multiple slave machines of the multi-split air-conditioning system adopt a bus type communication network topology, namely, the master machine can simultaneously carry out program upgrading on the multiple slave machines through the buses, so that the machine-dismantling upgrading program is avoided, and the purpose of saving the upgrading cost is achieved.
According to the multi-split air conditioning system, the upgrading program divided into multiple sections and the preset slave list are sent to each slave through the host in a broadcasting mode, the transmission rate of program data is improved, and meanwhile the slave needing program upgrading can be effectively ensured to accurately execute program upgrading operation, so that the program upgrading efficiency is improved, and the user experience is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a program upgrading method of a multi-split air conditioning system according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating a program upgrading method of a multi-split air conditioning system according to a second embodiment of the present invention;
fig. 3 is a schematic block diagram illustrating a program upgrading apparatus of a multi-split air conditioning system according to a first embodiment of the present invention;
FIG. 4 shows a schematic block diagram of the partitioning module shown in FIG. 3;
fig. 5 illustrates a schematic block diagram of a main unit of a multi-split air conditioning system according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a program upgrading method of a multi-split air conditioning system according to a third embodiment of the present invention;
fig. 7 is a flowchart illustrating a program upgrading method of a multi-split air conditioning system according to a fourth embodiment of the present invention;
fig. 8 is a schematic block diagram illustrating a program upgrading apparatus of a multi-split air conditioning system according to a second embodiment of the present invention;
fig. 9 illustrates a schematic block diagram of a slave of a multi-split air conditioning system according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 is a flowchart illustrating a program upgrading method of a multi-split air conditioning system according to a first embodiment of the present invention.
As shown in fig. 1, the method for upgrading a program of a host of a multi-split air conditioning system according to an embodiment of the present invention specifically includes the following steps:
step S10, the data of the upgrade program is divided into a plurality of pieces of program data.
And step S12, broadcasting each section of program data to each slave in the multiple slaves of the multi-split air conditioning system.
Step S14, a preset slave list is broadcast and sent to each slave, where the preset slave list is used for each slave to determine whether to perform program upgrade according to each piece of program data, and the preset slave list is represented in a mask form.
In the embodiment, when the programs of the slave machines of the multi-split air-conditioning system need to be upgraded, the data of the upgraded programs are divided into a plurality of sections of program data through the host machine of the multi-split air-conditioning system, and each section of program data is sequentially issued to each slave machine in a broadcasting mode, so that a large amount of transmission time can be saved, the data transmission burden can be reduced in a sectional transmission upgrading mode, the data transmission efficiency is improved, and the program upgrading efficiency is improved; further, a preset slave machine list represented by a mask needs to be issued to each slave machine, so that the slave machine determines whether the slave machine is in the same network as the master machine according to the preset slave machine list, and further determines whether to perform program upgrade according to received program data, so as to ensure accuracy and adaptability of the program upgrade, wherein the preset slave machine list may be represented by a 64-bit mask formed by 8 bytes, for example, the mask of a 0-15 slave machine is: FFFF 000000000000. Therefore, the upgrading program divided into multiple sections and the preset slave list are sent to each slave in a broadcasting mode, the transmission rate of program data is improved, and meanwhile the slave needing program upgrading can be effectively ensured to accurately execute the program upgrading operation, so that the program upgrading efficiency is improved, and the user experience is improved.
Further, as shown in fig. 2, in the above embodiment, the method for upgrading a program of a multi-split air conditioning system includes the following process steps in addition to the above steps S12 to S14:
step S16, sending the check code corresponding to each piece of program data to each slave machine in a unicast manner, so that each slave machine performs a check on each piece of program data according to the check code.
After the multiple segments of program data of the upgrade program are respectively issued to the slaves in a broadcast manner, the check codes corresponding to the segments of program data are also required to be issued to the slaves in a unicast manner one by one, so that the slaves check the received segments of program data one by one, the accuracy of the program data is detected, and the program upgrade can be smoothly performed.
It can be understood that, the host sends each segment of program data in turn by the upgrade program using a broadcast address (e.g. 0xff), and a packet carrying each segment of program data should carry at least the following information: the serial number of each segment, the check code of each segment and a preset slave list.
Step S18, receiving a result of checking the corresponding program data of each slave according to the check code.
Step S20, after all the multiple pieces of program data are broadcast and issued to each slave, sending the program data that the verification result is incorrectly received to the corresponding slave again for program upgrading.
It can be understood that, when each slave machine checks each piece of segmented program data according to the check code corresponding to each piece of program data, and when there is an error in the piece of segmented program data received by the slave machine in each check result fed back to the host machine, it is necessary to resend the piece of segmented program data received with an error to the corresponding slave machine after broadcasting the complete piece of segmented program data, that is, when upgrading again, only the part that does not pass the check is upgraded according to the upgrade program check condition of each slave machine, so that segment incremental upgrade and breakpoint retransmission are realized, and the accuracy and integrity of program upgrade can be effectively ensured while the upgrade efficiency is improved.
Further, in any of the above embodiments, the step S10 may be specifically executed as the following flow steps, as shown in fig. 2:
step S102, equally dividing the data of the upgrading program into the multiple sections of program data by taking preset bytes as units.
And step S104, when the last section of program data in the plurality of sections of program data is less than the preset byte, adding a fixed value to the last section of program data for supplementation.
In this embodiment, specifically, when the upgrade program is divided into multiple segments of program data, an equivalent division mode may be adopted to ensure higher program segmentation efficiency, and further, if the divided last segment of program is less than the preset bytes of equal parts, a fixed value mode may be adopted for supplementation, such as 0xff supplementation, to ensure the equivalent property of each segment of program data; the size of the preset byte can be specifically set according to the size of the upgrade program, so as to better meet the actual situation, for example, the size of the preset byte can be 16 KB.
Fig. 3 illustrates a schematic block diagram of a program upgrading apparatus of a multi-split air conditioning system according to a first embodiment of the present invention.
As shown in fig. 3, the program upgrading apparatus 30 for a host of a multi-split air conditioning system according to the present invention includes: a partitioning module 302, a first sending module 304, and a second sending module 306.
The dividing module 302 is configured to divide data of an upgrade program into multiple segments of program data; the first sending module 304 is configured to broadcast each piece of program data obtained by the dividing module 302 to each slave of the multiple slaves of the multi-split air conditioning system; the second sending module 306 is configured to send a preset slave list to each slave machine in a broadcast manner, where the preset slave list is used for each slave machine to determine whether to perform program upgrading according to each piece of program data, and the preset slave list is represented in a mask form.
In the embodiment, when the programs of the slave machines of the multi-split air-conditioning system need to be upgraded, the data of the upgraded programs are divided into a plurality of sections of program data through the host machine of the multi-split air-conditioning system, and each section of program data is sequentially issued to each slave machine in a broadcasting mode, so that a large amount of transmission time can be saved, the data transmission burden can be reduced in a sectional transmission upgrading mode, the data transmission efficiency is improved, and the program upgrading efficiency is improved; further, a preset slave machine list represented by a mask needs to be issued to each slave machine, so that the slave machine determines whether the slave machine is in the same network as the master machine according to the preset slave machine list, and further determines whether to perform program upgrade according to received program data, thereby ensuring accuracy and adaptability of the program upgrade, wherein the preset slave machine list can be represented by a 64-bit mask formed by 8 bytes, for example, the mask of a slave machine No. 0-15 is: FFFF 000000000000. Therefore, the upgrading program divided into multiple sections and the preset slave list are sent to each slave in a broadcasting mode, the transmission rate of program data is improved, and meanwhile the slave needing program upgrading can be effectively ensured to accurately execute the program upgrading operation, so that the program upgrading efficiency is improved, and the user experience is improved.
Further, as shown in fig. 3, the program upgrading apparatus 30 further includes: a third sending module 308, configured to send the check code corresponding to each piece of program data to each slave in a unicast manner, so that each slave performs a check on each piece of program data according to the check code.
In this embodiment, after the multiple segments of program data of the upgrade program are respectively issued to the slaves in a broadcast manner, the check codes corresponding to the segments of program data are also required to be issued to the slaves in a unicast manner in a one-to-one correspondence manner, so that the slaves check the received segments of program data one by one, the accuracy of the program data is detected, and the program upgrade can be smoothly performed.
It can be understood that, the host sends each segment of program data in turn by the upgrade program using a broadcast address (e.g. 0xff), and a packet carrying each segment of program data should carry at least the following information: the serial number of each segment, the check code of each segment and a preset slave list.
Further, as shown in fig. 3, the program upgrading apparatus 30 further includes: a receiving module 310 and a control module 312.
The receiving module 310 is configured to receive a check result of each slave device on each corresponding section of program data according to the check code; the control module 312 is configured to control to send the program data that is not correctly received as the verification result to the corresponding slave device again for program upgrading after all the multiple pieces of program data are broadcast and issued to each slave device.
In this embodiment, when each slave machine checks each piece of segment program data according to the check code corresponding to each piece of program data, and there is an error in the segment program data received by the slave machine in each check result fed back to the host machine, it is necessary to resend the segment program data received with the error to the corresponding slave machine after broadcasting the complete segment program data, that is, when upgrading again, only the part that does not pass the check is upgraded according to the upgrade program check condition of each slave machine, so that segment incremental upgrade and breakpoint resume are realized, and the accuracy and integrity of program upgrade can be effectively ensured while the upgrade efficiency is improved.
Further, in any of the above embodiments, the dividing module 302 includes: a divide sub-module 3022 and an add sub-module 3024 as shown in fig. 4.
The dividing submodule 3022 is configured to divide the data of the upgrade program into the multiple segments of program data in an equal amount by using a preset byte as a unit; the adding submodule 3024 is configured to add a fixed value to the last piece of program data to supplement the last piece of program data when the last piece of program data in the plurality of pieces of program data is less than the preset byte.
In this embodiment, specifically, when the upgrade program is divided into multiple segments of program data, an equivalent division mode may be adopted to ensure higher program segmentation efficiency, and further, if the divided last segment of program is less than the preset bytes of equal parts, a fixed value mode may be adopted for supplementation, such as 0xff supplementation, to ensure the equivalent property of each segment of program data; the size of the preset byte can be specifically set according to the size of the upgrading program so as to better meet the actual situation.
Fig. 5 illustrates a schematic block diagram of a main unit of a multi-split air conditioning system according to an embodiment of the present invention.
As shown in fig. 5, the main unit 50 of the multi-split air conditioning system according to the embodiment of the present invention includes the program upgrading apparatus 30 of the multi-split air conditioning system as described in any one of the above embodiments. Therefore, the main unit 50 of the multi-split air conditioning system has all the beneficial technical effects of the program upgrading device 30, and will not be described in detail herein.
Fig. 6 is a flowchart illustrating a program upgrading method of a multi-split air conditioning system according to a third embodiment of the present invention.
As shown in fig. 6, the program upgrading method for the slave of the multi-split air conditioning system according to the embodiment of the present invention includes the following process steps:
step S60, receiving multiple pieces of program data broadcast by the host.
Step S62, receiving a preset slave list issued by the master broadcast, where the preset slave list is represented in a mask form.
And step S64, when the local computer is determined to be in the preset slave computer list, upgrading the program according to each section of program data in the plurality of sections of program data.
In this embodiment, when the slave of the multi-split air conditioning system needs to update the program, multiple pieces of program data issued by the master of the multi-split air conditioning system in a broadcast form are sequentially received, so that the data receiving burden can be reduced through the segmented receiving form, the data transmission efficiency is improved, and when the slave is determined to be present in a preset slave list issued by the master and represented in a mask form, the program is updated according to each piece of program data in the multiple pieces of received program data, that is, the program update is started when the slave is determined to be matched with the update program composed of the multiple pieces of received program data, so as to ensure the accuracy and adaptability of the program update. By the technical scheme, the slave machine which needs to be upgraded can be effectively ensured to accurately execute the program upgrading operation while the program data transmission rate is improved, so that the program upgrading efficiency is improved, and the user experience is improved.
The preset slave list may be represented by a 64-bit mask formed by 8 bytes, for example, the mask of a slave 0 to 15 is: FFFF 000000000000.
Further, as shown in fig. 7, in the above embodiment, the method for upgrading a program of a multi-split air conditioning system further includes the following process steps:
step S66, receiving the check code issued by the host unicast and corresponding to each piece of program data.
And step S68, performing verification on each corresponding segment of program data according to the verification code.
Step S70, feeding back the verification result corresponding to each piece of program data to the host, so that the host sends the corresponding program data again when the verification result is incorrect reception.
In this embodiment, in order to ensure that each piece of received program data is a correct program that is not damaged in the transmission process, each piece of program data may be further verified according to a check code corresponding to each piece of segmented program data issued by the host in a unicast manner, and a verification result is fed back to the host, so that the host re-issues the segmented program data of which the verification result is incorrectly received, thereby ensuring the accuracy and integrity of each piece of received program data, smoothly upgrading the program, and improving the program upgrading efficiency.
It can be understood that, the host sends each segment of program data in turn by the upgrade program using a broadcast address (e.g. 0xff), and a packet carrying each segment of program data should carry at least the following information: the serial number of each segment, the check code of each segment and a preset slave list.
Further, in any of the above embodiments, the step S64 may be specifically executed as:
and when the verification result is correct reception and the historical program data segment stored in the local computer is different from each segment of program data, upgrading the program according to each segment of program data, wherein the historical program data segment corresponds to each segment of program data.
In this embodiment, further, after it is determined that the received segmented program data is correct, the program upgrade operation may be started, specifically, each segment of program data needs to be compared with a corresponding historical program data segment already in the slave, if each segment of program data is different from the corresponding historical program data segment, the historical program data segment is upgraded, and if the segment of program data is not different from the corresponding historical program data segment, the upgrade is omitted, so as to avoid useless work and further improve the program upgrade efficiency.
Fig. 8 illustrates a schematic block diagram of a program upgrading apparatus of a multi-split air conditioning system according to a second embodiment of the present invention.
As shown in fig. 8, the program upgrading apparatus 80 for a slave of a multi-split air conditioning system according to an embodiment of the present invention includes: a first receiving module 802, a second receiving module 804, and a program upgrade module 806.
The first receiving module 802 is configured to receive multiple pieces of program data sent by a host broadcast; the second receiving module 804 is configured to receive a preset slave list issued by the host broadcast, where the preset slave list is represented in a mask form; the program upgrading module 806 is configured to, when it is determined that the local computer exists in the preset slave computer list, perform program upgrading according to each section of program data in the plurality of sections of program data.
In this embodiment, when the slave of the multi-split air conditioning system needs to update the program, multiple pieces of program data issued by the master of the multi-split air conditioning system in a broadcast form are sequentially received, so that the data receiving burden can be reduced through the segmented receiving form, the data transmission efficiency is improved, and when the slave is determined to be present in a preset slave list issued by the master and represented in a mask form, the program is updated according to each piece of program data in the multiple pieces of received program data, that is, the program update is started when the slave is determined to be matched with the update program composed of the multiple pieces of received program data, so as to ensure the accuracy and adaptability of the program update. By the technical scheme, the slave machine which needs to be upgraded can be effectively ensured to accurately execute the program upgrading operation while the program data transmission rate is improved, so that the program upgrading efficiency is improved, and the user experience is improved.
The preset slave list may be represented by a 64-bit mask formed by 8 bytes, for example, the mask of a slave 0 to 15 is: FFFF 000000000000.
Further, in the above embodiment, the program upgrading apparatus 80 of the multi-split air conditioning system further includes: a third receiving module 808, a verification module 810, and a feedback module 812, as shown in fig. 8.
The third receiving module 808 is configured to receive a check code corresponding to each piece of program data sent by the host unicast; the checking module 810 is configured to perform checking on the corresponding each segment of program data according to the check code; the feedback module 812 is configured to feed back a verification result corresponding to each piece of program data to the host, so that the host sends the corresponding program data again when the verification result is incorrect reception.
In this embodiment, in order to ensure that each piece of received program data is a correct program that is not damaged in the transmission process, each piece of program data may be further verified according to a check code corresponding to each piece of segmented program data issued by the host in a unicast manner, and a verification result is fed back to the host, so that the host re-issues the segmented program data of which the verification result is incorrectly received, thereby ensuring the accuracy and integrity of each piece of received program data, smoothly upgrading the program, and improving the program upgrading efficiency.
It can be understood that, the host sends each segment of program data in turn by the upgrade program using a broadcast address (e.g. 0xff), and a packet carrying each segment of program data should carry at least the following information: the serial number of each segment, the check code of each segment and a preset slave list.
Further, in any of the above embodiments, the program upgrade module 806 is configured to: and when the verification result is correct reception and the historical program data segment stored in the local computer is different from each segment of program data, upgrading the program according to each segment of program data, wherein the historical program data segment corresponds to each segment of program data.
In this embodiment, further, after it is determined that the received segmented program data is correct, the program upgrade operation may be started, specifically, each segment of program data needs to be compared with a corresponding historical program data segment already in the slave, if each segment of program data is different from the corresponding historical program data segment, the historical program data segment is upgraded, and if the segment of program data is not different from the corresponding historical program data segment, the upgrade is omitted, so as to avoid useless work and further improve the program upgrade efficiency.
Fig. 9 illustrates a schematic block diagram of a slave of a multi-split air conditioning system according to an embodiment of the present invention.
As shown in fig. 9, the slave 90 of the multi-split air conditioning system according to the embodiment of the present invention includes the program upgrading apparatus 80 of the multi-split air conditioning system as described in any one of the above embodiments. Therefore, the slave 90 of the multi-split air conditioning system has all the beneficial technical effects of the program upgrading device 80, and will not be described in detail herein.
As an embodiment of the present invention, there is also proposed a multi-split air conditioning system including a master 50 of the multi-split air conditioning system as described in the above embodiment and a plurality of slaves 90 of the multi-split air conditioning system as described in the above embodiment.
The master 50 of the multi-split air conditioning system and the plurality of slaves 90 of the multi-split air conditioning system adopt a bus-type communication network topology, that is, the master 50 performs program upgrade on the plurality of slaves 90 through a bus at the same time, so that the disconnection upgrade program is avoided, and the purpose of saving upgrade cost is achieved.
According to the multi-split air conditioning system, the upgrading program divided into multiple sections and the preset slave list are sent to each slave through the host 50 in a broadcasting mode, the transmission rate of program data is improved, and meanwhile the slave 90 needing program upgrading can be effectively ensured to accurately execute program upgrading operation, so that the program upgrading efficiency is improved, and the user experience is improved.
Compared with single-unit one-by-one upgrading, the multi-split air conditioning system adopts a broadcast upgrading program mode, and when the number of upgrading units is more than 2, the broadcast mode upgrading can save a large amount of time, for example, when 16 slave units are upgraded, the required communication quantity broadcast mode is 1/8-1/16 of a unicast mode.
Further, any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
The technical scheme of the invention is explained in detail with the accompanying drawings, the upgrading program divided into multiple sections and the preset slave list are sent to each slave in a broadcasting mode, the program data transmission rate is improved, and meanwhile, the slave needing program upgrading can be effectively ensured to accurately execute the program upgrading operation, so that the program upgrading efficiency is improved, and the user experience is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A program upgrading method of a multi-split air conditioning system is used for a host of the multi-split air conditioning system, and is characterized by comprising the following steps:
dividing the data of the upgrading program into a plurality of sections of program data;
broadcasting and issuing each section of program data to each slave in the multiple slaves of the multi-split air conditioning system;
broadcasting a preset slave machine list to each slave machine, wherein the preset slave machine list is used for each slave machine to determine whether to perform program upgrading according to each section of program data, and the preset slave machine list is represented in a mask mode;
the program upgrading method further comprises the following steps:
and sending the check code corresponding to each section of program data to each slave machine in a unicast mode so that each slave machine can check each section of program data according to the check code.
2. The program upgrading method according to claim 1, further comprising:
receiving a verification result of each slave machine on corresponding program data of each section according to the verification code;
and after all the multiple sections of program data are broadcast and issued to each slave machine, sending the program data with the verification result of incorrect reception to the corresponding slave machine again for program upgrading.
3. The program upgrading method according to claim 1 or 2, wherein the step of dividing the data of the upgraded program into a plurality of pieces of program data includes:
equally dividing the data of the upgrading program into the multiple sections of program data by taking preset bytes as units;
and adding a fixed value to the last section of program data for supplementation when the last section of program data in the plurality of sections of program data is less than the preset byte.
4. A program upgrading device of a multi-split air conditioning system, which is used for a host of the multi-split air conditioning system, and is characterized by comprising the following steps:
the dividing module is used for dividing the data of the upgrading program into a plurality of sections of program data;
the first sending module is used for respectively broadcasting and issuing each section of program data obtained by the dividing module to each slave machine in the multiple slave machines of the multi-split air-conditioning system;
the second sending module is used for sending a preset slave list to each slave machine in a broadcast mode, wherein the preset slave list is used for each slave machine to determine whether to perform program upgrading according to each section of program data, and the preset slave list is represented in a mask mode;
the program upgrading apparatus further includes:
and the third sending module is used for sending the check code corresponding to each section of program data to each slave machine in a unicast mode so that each slave machine can perform check on each corresponding section of program data according to the check code.
5. The program upgrading apparatus according to claim 4, further comprising:
the receiving module is used for receiving a verification result of each slave machine on each corresponding section of program data according to the verification code;
and the control module is used for controlling to send the program data which is not correctly received as the verification result to the corresponding slave machines again for program upgrading after all the multiple sections of program data are broadcast and issued to each slave machine.
6. The program upgrading apparatus according to claim 4 or 5, wherein the dividing module comprises:
the dividing submodule is used for equally dividing the data of the upgrading program into the multiple sections of program data by taking preset bytes as units;
and the adding submodule is used for adding a fixed value to the last section of program data to supplement when the last section of program data in the plurality of sections of program data is less than the preset byte.
7. A master unit of a multi-split air conditioning system, comprising the program upgrading apparatus of the multi-split air conditioning system as claimed in any one of claims 4 to 6.
8. A program upgrading method for a multi-split air conditioning system, for each of a plurality of slave machines of the multi-split air conditioning system, the program upgrading method comprising:
receiving a plurality of sections of program data transmitted by a host broadcast;
receiving a preset slave list issued by the host broadcast, wherein the preset slave list is represented in a mask mode;
when the local computer is determined to be in the preset slave computer list, program upgrading is carried out according to each section of program data in the plurality of sections of program data;
the program upgrading method further comprises the following steps:
receiving a check code corresponding to each section of program data issued by the host unicast;
checking each corresponding section of program data according to the check code;
when the local computer is determined to be in the preset slave computer list, the step of upgrading the program according to each section of program data in the plurality of sections of program data comprises the following steps:
when the verification result is correct reception and the historical program data segment stored in the local computer is different from each segment of program data, program upgrading is carried out according to each segment of program data, wherein the historical program data segment corresponds to each segment of program data;
the program upgrading method further comprises the following steps:
and feeding back a verification result corresponding to each section of program data to the host so that the host can send the corresponding program data again when the verification result is not received correctly.
9. A program upgrading apparatus for a multi-split air conditioning system, for each of a plurality of slave devices of the multi-split air conditioning system, the program upgrading apparatus comprising:
the first receiving module is used for receiving a plurality of sections of program data transmitted by the broadcast of the host;
the second receiving module is used for receiving a preset slave list issued by the host broadcast, and the preset slave list is represented in a mask mode;
the program upgrading module is used for upgrading a program according to each section of program data in the plurality of sections of program data when the local computer is determined to be in the preset slave computer list;
a third receiving module, configured to receive a check code corresponding to each piece of program data sent by the host unicast;
the checking module is used for checking each section of program data according to the checking code;
the program upgrading module is used for:
when the verification result is correct reception and the historical program data segment stored in the local computer is different from each segment of program data, program upgrading is carried out according to each segment of program data, wherein the historical program data segment corresponds to each segment of program data;
the program upgrading apparatus further includes:
and the feedback module is used for feeding back the verification result corresponding to each section of program data to the host so that the host can send the corresponding program data again when the verification result is not received correctly.
10. A slave of a multi-split air conditioning system, comprising the program upgrading apparatus of the multi-split air conditioning system as set forth in claim 9.
11. A multi-split air conditioning system, comprising:
the main unit of the multi-split air conditioning system as claimed in claim 7; and
a plurality of slaves of a multi-split air conditioning system as set forth in claim 10, connected to said master through a communication bus.
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| CN110933663B (en) * | 2019-12-17 | 2020-11-24 | 珠海格力电器股份有限公司 | Multi-connected air conditioning unit and remote upgrading method thereof |
| CN113315797A (en) * | 2020-02-26 | 2021-08-27 | 新开普电子股份有限公司 | Method, system and node for remote upgrading of local area network in batches |
| CN111562933B (en) * | 2020-04-23 | 2023-08-01 | Tcl空调器(中山)有限公司 | Air conditioner upgrading method and air conditioner system |
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