CN110933663A - Multi-connected air conditioning unit and remote upgrading method thereof - Google Patents
Multi-connected air conditioning unit and remote upgrading method thereof Download PDFInfo
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- CN110933663A CN110933663A CN201911304914.6A CN201911304914A CN110933663A CN 110933663 A CN110933663 A CN 110933663A CN 201911304914 A CN201911304914 A CN 201911304914A CN 110933663 A CN110933663 A CN 110933663A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
- H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/30—Decision processes by autonomous network management units using voting and bidding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
- H04W8/245—Transfer of terminal data from a network towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/407—Bus networks with decentralised control
Abstract
The invention relates to a multi-connected air conditioning unit and a remote upgrading method thereof, wherein the remote upgrading method of the multi-connected air conditioning unit comprises the following steps: each multi-connected air conditioning unit is upgraded remotely through a GPRS module, the GPRS module adopts an election mechanism in a network, and when the GPRS module elects, a selected zone bit and upgrade packet data are sent to a bus; and when the GPRS module is not elected, judging whether the selected zone bit or the upgrading packet data exists on the bus, if so, not participating in election, and if not, participating in election. When the GPRS module upgrades the air conditioning unit, the GPRS module on election sends a large amount of upgrade packet data to the bus, even if the GPRS module on non-election cannot receive the selected zone bit sent by the bus within the preset time, the upgrade packet data sent by the bus can be received, once the GPRS module on non-election receives the upgrade packet data, the GPRS module on non-election indicates that one GPRS module on election is already in the same project, the GPRS module on election does not participate in election, and therefore normal upgrade of the air conditioning unit is guaranteed.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a multi-connected air conditioning unit and a remote upgrading method thereof.
Background
At present, the multi-split air conditioning unit has a GPRS module remote upgrading function, the GPRS module downloads an upgrading package from a server through a bus and sends the downloaded upgrading package to the bus, and therefore the air conditioning unit on the same bus is upgraded. In one project, more than two GPRS modules may exist, in order to save traffic, the GPRS modules have an election mechanism in a network, that is, one GPRS module is elected to work in the same network, and other GPRS modules are in standby. According to the conventional processing scheme, the selected flag bit flag =1 is sent to the bus by the GPRS module in election once every preset time, and when the selected flag bit flag =1 sent by the bus is received by other GPRS modules in non-election within the preset time, the GPRS modules do not participate in election, so that normal upgrading of the air conditioning unit is guaranteed.
In the prior art, due to the fact that the data volume of the upgrade package is large, the time for the GPRS module to send the upgrade package to the bus is long, the phenomenon that the selected flag bit flag =1 is unsuccessful easily exists, once the sending is unsuccessful, the GPRS module on other non-elected modules cannot receive the selected flag bit flag =1 within the preset time, therefore, the GPRS module can participate in the election again, and if other GPRS modules elect, the phenomenon that the original GPRS module is interrupted in transmission of the upgrade package occurs, so that the normal upgrade of the air conditioning unit is affected.
Disclosure of Invention
The invention mainly aims to provide a multi-connected air conditioning unit and a remote upgrading method thereof, and aims to solve the technical problem that in the prior art, under the condition of bus blockage, the transmission of an upgrading packet of a GPRS module is interrupted.
A remote upgrading method for a multi-connected air conditioning unit comprises the following steps: each multi-connected air conditioning unit is upgraded remotely through a GPRS module, the GPRS module adopts an election mechanism in a network, and when the GPRS module elects, a selected zone bit and upgrade packet data are sent to a bus; and when the GPRS module is not elected, judging whether the selected zone bit or the upgrading packet data exists on the bus, if so, not participating in election, and if not, participating in election.
Wherein, not participating in elections comprises: the election condition value is not sent to the bus, a counter is established, whether the GPRS module receives the selected zone bit or the upgrade packet data sent by the bus within the preset time is judged, and if yes, the timer is cleared; if not, the election is participated.
Wherein, participating in elections comprises: sending and receiving election condition values to a bus, judging whether the election condition values of the GPRS module meet election conditions, if so, setting an election flag bit flag of the GPRS module to be 1, and sending the selected flag bit flag =1 and upgrade packet data to the bus; if not, not participating in election.
Wherein, judging whether the election condition value of the GPRS module meets the election condition comprises the following steps: and comparing the election condition values of all GPRS modules, and electing the GPRS module with the largest election condition value.
Wherein, the election condition value is a SIM card signal value.
The signal value of the SIM card is the signal intensity sent by the SIM card to the bus.
And when the SIM card signal values of the GPRS modules are the same, one of the GPRS modules is selected.
The GPRS module reads an election flag bit flag from the FLASH every preset time; when the read election flag bit flag =1, the election is indicated, and the selected flag bit flag =1 and upgrade packet data are sent to the bus every Y seconds; and when the read election flag bit flag =0, indicating that the bus is not elected, and judging whether the selected flag bit flag =1 or upgrading the packet data exists on the bus every N seconds.
Wherein time Y seconds is less than time N seconds.
The multi-connected air conditioning unit adopts the remote upgrading method.
According to the multi-connected air conditioning unit and the remote upgrading method thereof, when the GPRS module upgrades the air conditioning unit, the elected GPRS module can send a large amount of upgrading packet data to the bus, even if the unselected GPRS module cannot receive the selected zone bit sent by the bus within the preset time, the elected GPRS module can receive the upgrading packet data sent by the bus, once the unselected GPRS module receives the upgrading packet data, the GPRS module indicates that one GPRS module has elected under the same project, the election is not carried out, and therefore normal upgrading of the air conditioning unit is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a network topology diagram of a multi-connected air conditioning unit and a GPRS module according to an embodiment of the present invention.
Fig. 2 is a flowchart of a remote upgrade method for a multi-connected air conditioning unit according to an embodiment of the present invention.
Fig. 3 is another flowchart of a remote upgrade method for a multi-connected air conditioning unit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a network topology diagram of a multi-connected air conditioning unit and GPRS modules, where multiple clients correspond to one server, one server corresponds to multiple projects, one project corresponds to multiple outdoor units and corresponding GPRS modules, and one outdoor unit and one GPRS module correspond to multiple indoor units. When all outdoor units in a project need to be upgraded, all GPRS modules in the project are on the same bus, so that all outdoor units on the bus can be upgraded by only downloading the upgrade package from the server through one GPRS module, and each GPRS module is not required to download the upgrade package from the server, so that the flow is saved.
For example, the project 1 in fig. 1 is a project, and an external unit 1+ GPRS module 1, and an external unit 2+ GPRS module 2 … …, an external unit n + GPRS module n, are disposed below the project 1, where the GPRS module 1 and the GPRS module 2 … … are connected by a bus.
As shown in fig. 2, in this embodiment, a method for remotely upgrading a multi-connected air conditioning unit is provided, where the method specifically includes the following steps:
in this embodiment, each multi-connected air conditioning unit is upgraded remotely through a GPRS module, and the GPRS module employs an election mechanism in a network.
S100, when the GPRS module is elected, the selected zone bit and the upgrading packet data are sent to the bus.
Specifically, when the GPRS module elects, it indicates that one GPRS module is already in an operating state in the same project, and therefore it needs to tell other GPRS modules in the project through the bus that they do not participate in the election, thereby saving traffic.
S200, when the GPRS module is not elected, judging whether the selected zone bit or the upgrading packet data exists on the bus, if so, not participating in the election, and if not, participating in the election.
Specifically, when the GPRS module is not selected, it is necessary to determine whether a selected flag bit or upgrade packet data exists on the bus, and perform corresponding processing according to the determination result, thereby ensuring normal upgrade of the air conditioning unit.
In this embodiment, when the GPRS module upgrades the air conditioning unit, the GPRS module on election sends a large amount of upgrade packet data to the bus, and even if the GPRS module on non-election cannot receive the selected flag bit sent by the bus within a preset time, the GPRS module on non-election receives the upgrade packet data sent by the bus, once the GPRS module on non-election receives the upgrade packet data, it indicates that one GPRS module has elected under the same project, the GPRS module does not participate in election, thereby ensuring normal upgrade of the air conditioning unit.
In the embodiment, when an air conditioning unit upgrading task exists on a bus, a GPRS module reads an election flag bit flag from a FLASH every preset time; when the read election flag bit flag =1, the GPRS module is indicated to be elected, the GPRS module downloads an upgrade package from a server, and sends the elected flag bit (flag = 1) and upgrade package data to a bus every Y seconds; and when the read election flag bit flag =0, the GPRS module is indicated as not elected, and whether the selected flag bit (flag = 1) or the upgrade packet data exists on the bus is judged every N seconds, if so, the GPRS module does not participate in the election, and if not, the GPRS module participates in the election.
In the present embodiment, the time Y seconds is less than the time N seconds. If the time for sending information (selected flag bit and upgrade packet data) by the elected GPRS module is longer than the time for receiving information by the unselected GPRS module, the information is lost due to the fact that one side sends the information too fast and the other side receives the information too slow, and the unselected GPRS module cannot normally receive the information, so that the time Y second is less than the time N second.
In this embodiment, opt-out includes: the election condition value is not sent to the bus, a counter is established, whether the GPRS module receives the selected zone bit or the upgrade packet data sent by the bus within the preset time is judged, and if yes, the timer is cleared; if not, the election is participated.
In this embodiment, the purpose of the timer is to calculate whether the time is out, so that the GPRS module that has not elected is ready to participate in election at any time. And if the selected zone bit or the upgrade packet data is received within the preset time, which indicates that a GPRS module has already been selected in the same project, clearing. And if the election flag bit or the upgrade packet data is not received within the preset time, indicating that the GPRS module does not elect under the project, participating in election. Whether the time is overtime is calculated through a timer, once the time is overtime, election is actively participated, and therefore the utilization rate of the GPRS module is improved.
In this embodiment, participating in elections includes: the current GPRS module sends and receives election condition values to the bus, judges whether the election condition values of the current GPRS module meet election conditions or not, if yes, sets an election flag bit flag of the GPRS module to be 1, and sends the selected flag bit flag =1 and upgrade packet data to the bus; if not, not participating in election.
Specifically, before election, the SIM card in the GPRS module needs to be registered, after registration, the GPRS module sends its own election condition value to the bus, and also receives election condition values of other GPRS modules sent by the bus, by comparing the election condition values of the GPRS modules, the GPRS module with the largest election condition value is elected, and sets the election flag of the GPRS module on election to 1, and sends the elected flag =1 and upgrade packet data to the bus.
In this embodiment, the election condition value is specifically a SIM card signal value, and the SIM card signal value is specifically a signal strength sent by the SIM card to the bus.
For example, the following steps are carried out: if there are four GPRS modules, GPRS module A, GPRS, module B, GPRS, module C, and GPRS module D. At this time, the election flag bit flag =0 on the bus or the upgrade packet data does not exist, and the four GPRS modules respectively create a timer, so that the election condition values of the GPRS modules are compared within a preset time. The four GPRS modules respectively send the SIM card signal value and the IMEI value of the four GPRS modules to the bus, and receive the SIM card signal value and the IMEI value of other GPRS modules sent by the bus. The election rules are as follows: comparing the SIM card signal values of the four GPRS modules, wherein the GPRS module with the maximum SIM card signal value meets the selection condition. If the SIM card signal value of GPRS module a is-75 dB, the SIM card signal value of GPRS module B is-78 dB, the SIM card signal value of GPRS module C is-72 dB, and the SIM card signal value of GPRS module D is-80 dB, the GPRS module C is elected because the SIM card signal of GPRS module C is the largest.
In this embodiment, when the SIM card signal values of the GPRS modules are the same, one of the GPRS modules is selected.
Specifically, if the SIM card signal values of the four GPRS modules are all equal, one of the IMEI values is selected, and since the IMEI value is unique and fixed, there must be one GPRS module elected.
As shown in fig. 3, a remote upgrade method for a multi-connected air conditioning unit is provided, which specifically includes the following steps:
the first step is as follows: and starting the air conditioning unit and the GPRS module, wherein the bus is provided with an air conditioning unit upgrading task.
The second step is that: and the GPRS module reads the election flag bit flag from the FLASH FLASH memory.
The third step: judging whether the flag is 1, if so, entering the eighth step; if not, the fourth step is entered.
The fourth step: judging whether the bus has the selected zone bit or the upgrade packet data, if so, entering a fifth step; if not, the sixth step is carried out.
The fifth step: the election condition value of the current GPRS module is not sent to the bus, a counter is established, whether the current GPRS module receives the selected flag bit or the upgrade packet data sent by the bus within the preset time or not is judged, and if yes, the timer is cleared; if not, the sixth step is carried out.
And a sixth step: an election condition value is sent to the bus and received.
The seventh step: judging whether the election condition value of the current GPRS module meets the election condition, if so, entering an eighth step; if not, the fifth step is entered.
Eighth step: and setting an election flag bit flag of the GPRS module to be 1, and sending the selected flag bit flag =1 and upgrading packet data to the bus.
In the above description, for a person skilled in the art, according to the idea of the embodiment of the present invention, there are changes in the specific embodiment and the application range, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A remote upgrade method for multi-connected air conditioning units is characterized in that each multi-connected air conditioning unit is upgraded remotely through a GPRS module, and the GPRS module adopts an election mechanism in a network, and the method comprises the following steps:
when the GPRS module elects, sending the selected zone bit and the upgrade packet data to a bus;
and when the GPRS module is not elected, judging whether the selected zone bit or the upgrading packet data exists on the bus, if so, not participating in election, and if not, participating in election.
2. The method of claim 1, wherein opt-out comprises: the election condition value is not sent to the bus, a counter is established, whether the GPRS module receives the selected zone bit or the upgrade packet data sent by the bus within the preset time is judged, and if yes, the timer is cleared; if not, the election is participated.
3. The method of claim 1, wherein participating in an election comprises: sending and receiving election condition values to a bus, judging whether the election condition values of the GPRS module meet election conditions, if so, setting an election flag bit flag of the GPRS module to be 1, and sending the selected flag bit flag =1 and upgrade packet data to the bus; if not, not participating in election.
4. The method of claim 3, wherein determining whether the election condition value of the GPRS module meets an election condition comprises: and comparing the election condition values of all GPRS modules, and electing the GPRS module with the largest election condition value.
5. The method of claim 4, wherein the election condition value is a SIM card signal value.
6. The method of claim 5, wherein the SIM card signal value is a signal strength of the SIM card transmitted to the bus.
7. A method according to claim 5, characterized in that when the SIM card signal values of the respective GPRS modules are the same, one of the GPRS modules is optionally selected.
8. The method of claim 1,
the GPRS module reads an election flag bit flag from the FLASH every preset time;
when the read election flag bit flag =1, the election is indicated, and the selected flag bit flag =1 and upgrade packet data are sent to the bus every Y seconds;
and when the read election flag bit flag =0, indicating that the bus is not elected, and judging whether the selected flag bit flag =1 or upgrading the packet data exists on the bus every N seconds.
9. The method of claim 8, wherein time Y seconds is less than time N seconds.
10. A multi-connected air conditioning unit, characterized in that it employs the remote upgrade method as claimed in any one of claims 1 to 9.
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