CN114151933B - Multi-split air conditioning unit upgrading system, upgrading controller and upgrading method - Google Patents
Multi-split air conditioning unit upgrading system, upgrading controller and upgrading method Download PDFInfo
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- CN114151933B CN114151933B CN202111483582.XA CN202111483582A CN114151933B CN 114151933 B CN114151933 B CN 114151933B CN 202111483582 A CN202111483582 A CN 202111483582A CN 114151933 B CN114151933 B CN 114151933B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
Abstract
The invention provides an upgrade system, an upgrade controller and an upgrade method of a multi-split air conditioning unit, wherein the upgrade controller implements upgrade to one or more multi-split air conditioning units through a gateway, makes OTA preparation and gives out a bus for equipment on the bus in a normal working mode through a point-to-point unicast silent instruction and a start instruction, discards upgrade data for equipment which does not need to be upgraded, receives and stores the upgrade data for the equipment which needs to be upgraded, sends the upgrade data in a broadcast mode, and sends an inquiry instruction and an end instruction in a point-to-point unicast mode after the upgrade data is sent, so that the one or more multi-split air conditioning units are upgraded at the same time, the point-to-point operation is not needed, the upgrade operation difficulty is reduced, and the upgrade efficiency is improved; when the upgrade data is broadcasted, no transmission conflict of other data exists, the conflict rate is reduced to the minimum, and the equipment which fails in upgrade can not influence the operation of the normal program.
Description
Technical Field
The invention belongs to the technical field of multi-split air conditioning units, and particularly relates to an upgrading system, an upgrading controller and an upgrading method of a multi-split air conditioning unit.
Background
With the development of the internet of things, big data and internet technologies, smart home products become essential for the home, and the central air conditioner is an important component of the smart home products, so that the market demand is continuously expanded, and the intelligent degree is higher and higher.
When the functions of the central air conditioner cannot meet the requirements of users, software upgrading of the air conditioner mostly needs to be performed by service personnel from door to door in a point-to-point manner, meanwhile, new functions of the air conditioner are continuously increased along with the requirements of the users, the preferences of the users are different, and how to meet the requirements of different users is achieved.
Disclosure of Invention
The invention provides an upgrade system, an upgrade controller and an upgrade method of a multi-split air conditioning unit, aiming at the technical problem that the existing multi-split air conditioning unit needs point-to-point upgrade, OTA (Over-the-air Technology) is carried out in a bus mode, and a unicast protocol and a broadcast protocol are combined, so that one or more devices of a single system or multiple systems can be upgraded simultaneously, the normal operation of the devices is not influenced, and the system upgrade efficiency is improved.
The invention adopts the following technical scheme:
the utility model provides a multi-connected air conditioning unit upgrading system includes:
the multi-split air conditioning unit consists of an outdoor unit and a plurality of indoor units, wherein the indoor units are connected with the outdoor unit through HBS buses;
the gateway is used as a communication node and connected to an HBS bus of the multi-split air conditioning unit;
the upgrade controller is communicated with the multi-split air conditioning unit through the gateway, upgrades the equipment of the multi-split air conditioning unit, and comprises:
sending a silencing instruction and a starting instruction to the multi-split air conditioning unit in a point-to-point mode through a gateway; wherein the mute instruction is to instruct the device to enter an OTA state, not to send data to the HBS bus, and to discard data received from the HBS bus; the start instruction is used for indicating the equipment to enter an OTA state and preparing to start receiving the upgrading data;
after receiving the confirmation of each device, broadcasting the upgrading data through the gateway; the upgrading data is divided into a plurality of frames, and each frame is sent at set time intervals;
after the upgrade data is sent, sending a query instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
when successful confirmation of the equipment is received, sending an ending instruction to the multi-split air conditioning unit through the gateway in a point-to-point mode;
and after receiving the confirmation of each device, finishing upgrading once.
The multi-split air conditioning unit upgrading controller is communicated with the multi-split air conditioning unit through a gateway to upgrade equipment of the multi-split air conditioning unit; the multi-split air conditioning unit consists of an outdoor unit and a plurality of indoor units, wherein the indoor units are connected with the outdoor unit through HBS buses; the gateway is used as a communication node and connected to an HBS bus of the multi-split air conditioning unit; the method comprises the following steps of:
sending a silencing instruction and a starting instruction to the multi-split air conditioning unit in a point-to-point mode through a gateway; wherein the mute instruction is to instruct the device to enter an OTA state, not to send data to the HBS bus, and to discard data received from the HBS bus; the start instruction is used for indicating the equipment to enter an OTA state and preparing to start receiving the upgrading data;
after receiving the confirmation of each device, broadcasting the upgrading data through the gateway; the upgrading data is divided into a plurality of frames, and each frame is sent at set time intervals;
after the upgrade data is sent, sending a query instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
when successful confirmation of the equipment is received, sending an ending instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
and after receiving the confirmation of each device, finishing upgrading once.
The method is applied to the multi-split air conditioning unit, the multi-split air conditioning unit consists of an outdoor unit and a plurality of indoor units, and the indoor units are connected with the outdoor unit through an HBS bus; the gateway is used as a communication node and connected to an HBS bus of the multi-split air conditioning unit; the upgrading method comprises the following steps:
sending a silencing instruction and a starting instruction to the multi-split air conditioning unit in a point-to-point mode through a gateway; wherein the mute instruction is to instruct the device to enter an OTA state, not to send data to the HBS bus, and to discard data received from the HBS bus; the start instruction is used for indicating the equipment to enter an OTA state and preparing to start receiving the upgrading data;
after receiving the confirmation of each device, broadcasting the upgrading data through the gateway; the upgrading data is divided into a plurality of frames, and each frame is sent at set time intervals;
after the upgrade data is sent, sending a query instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
when successful confirmation of the equipment is received, sending an ending instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
and finishing upgrading once after receiving the confirmation of each device.
Compared with the prior art, the method has the following technical effects: the invention provides an upgrade system, an upgrade controller and an upgrade method of a multi-split air conditioning unit, wherein the upgrade controller realizes data communication with one or more buses of the multi-split air conditioning unit through a gateway, simultaneously upgrades one or more devices in a single system or multiple systems through a bus-type OTA, during upgrade, a silent instruction and a start instruction are sent to the single or multiple multi-split air conditioning units through the gateway in a point-to-point mode, the silent instruction enables the devices which do not need to be upgraded to enter an OTA state, the silent instruction does not send data to the buses and discards the data received from the buses, the start instruction enables the devices which need to be upgraded to enter the OTA state, the method comprises the steps that data are not sent to a bus and the upgrading data are prepared to be received, after the equipment returns confirmation to an upgrading controller, the upgrading data are broadcasted through a gateway, the upgraded equipment receives and stores the upgrading data from the bus, the uneupgraded equipment is discarded after receiving the upgrading data, after the upgrading data are broadcasted, the upgrading controller sends query instructions to a single or a plurality of multi-connected air conditioning units in a point-to-point mode through the gateway, and after the equipment returns success confirmation, an ending instruction is sent to the single or the plurality of multi-connected air conditioning units in the point-to-point mode through the gateway to end one upgrading process; based on the upgrading mode provided by the invention, through the silent instruction and the start instruction, the device on the bus is prepared by OTA in a normal working mode and gives out the bus, the device which does not need to be upgraded discards upgrading data, the device which needs to be upgraded receives and stores the upgrading data, and then the upgrading data is sent in a broadcasting mode, so that the simultaneous upgrading of one or more multi-online air conditioning units is realized, the point-to-point operation is not needed, the upgrading operation difficulty is reduced, and the upgrading efficiency is improved; when the upgrading data is broadcasted, no transmission conflict of other data exists, the conflict rate is reduced to the minimum, and the equipment with upgrading failure can not influence the running of the normal program.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a system architecture of an upgrade system of a multi-split air conditioning unit according to the present invention;
fig. 2 is a schematic step diagram of an upgrading method of a multi-split air conditioning unit according to the present invention;
FIG. 3 is a flowchart illustrating an upgrade controller sending a mute instruction and a start instruction according to an embodiment of the present invention;
FIG. 4 is a schematic flowchart illustrating an upgrade controller sending upgrade data according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating an example of an upgrade controller sending a query instruction according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating an upgrade controller sending an end instruction according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are 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.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The invention aims to realize the simultaneous upgrade of a single multi-split air conditioning system or a multi-split air conditioning system through the bus OTA, so that equipment can be upgraded remotely in a normal working mode, and compared with a point-to-point upgrade mode, the invention reduces the upgrade operation difficulty and improves the upgrade efficiency.
Specifically, as shown in fig. 1, the upgrade system for a multi-split air conditioning unit according to the present invention includes:
the multi-split air conditioning unit comprises a plurality of multi-split air conditioning units 1, wherein each multi-split air conditioning unit comprises an outdoor unit and a plurality of indoor units, and the indoor units are connected with the outdoor units through HBS buses 2; the outdoor unit and the indoor unit are both used as equipment in the multi-split air conditioning unit in the application and can be selectively upgraded according to function needs and/or requirements.
And a gateway 3 connected to the HBS bus 2 of the multi-split air conditioning unit 1 as a communication node.
And the upgrading controller 4 is communicated with the multi-split air conditioning unit 1 through a gateway to upgrade the equipment of the multi-split air conditioning unit 1.
It should be noted that, in the application of the present invention, the gateway 3 is used as a node for communication between the multi-split air conditioning unit 1 and the upgrade controller 4, and may be a main gateway in an area, or may be a gateway device of the multi-split air conditioning unit, and is used as a transmission source, and has information such as a system identifier and a specific address.
Based on the above upgrade system architecture, as shown in fig. 2, the upgrade controller 4 in the present invention performs upgrade on one or more devices in a single multi-split air conditioning unit or a multi-split air conditioning unit according to the following steps:
s1, sending a silencing instruction and a starting instruction to a multi-split air conditioning unit in a point-to-point mode through a gateway.
The quiesce instruction is used to instruct the device to enter OTA state, not to send data to the HBS bus, and to discard data received from the HBS bus. The device responding to the mute instruction enters a mute state, does not transmit data to the HBS bus, and discards data received from the HBS bus.
The start instruction is used to instruct the device to enter the OTA state in preparation for starting to receive upgrade data. The device responding to the start instruction enters the start state, does not transmit data to the HBS bus, and is ready to start receiving upgrade data.
As shown in fig. 3, the quiesce instruction and the start instruction are sent to the HBS bus through the gateway in a point-to-point unicast manner, and after each device receives the quiesce instruction and the start instruction from the HBS bus, the content of the instruction is analyzed to determine whether the instruction is sent to itself, and a quiesce reaction or a start reaction is made according to the content of the instruction. In the invention, the instruction of point-to-point unicast requires the equipment and the upgrade controller to make ACK (Acknowledge character) feedback, and the upgrade controller 4 performs the next operation after receiving the equipment feedback.
In some embodiments of the present invention, the mute instruction consists of a packet header and a packet body, as shown in table one below:
watch 1
The packet header comprises a data packet identifier, a data length, a message sending source system, a message sending source address, a target system, a target address and a silent instruction code; the packet body is empty or reserved bytes.
After receiving the silent instruction, the device analyzes the header of the silent instruction, acquires the target system and the target address, judges whether the silent instruction is an instruction sent to the device, enters a silent state if the silent instruction is the instruction sent to the device, feeds back an acknowledgement signal to the HBS bus based on the source sending system and the source sending address acquired by analysis, and sends the acknowledgement signal to the upgrade controller 4 corresponding to the gateway.
In some embodiments of the present invention, the start command consists of a header and a body, as shown in table two below:
watch two
The packet header comprises a data packet identifier, a data length, a source sending system, a source sending address, a target system, a target address and a silent instruction code; the packet body comprises the total packet number of the upgrade data and a CRC check value.
After receiving the start instruction, the device analyzes the header of the start instruction, acquires the target system and the target address, judges whether the start instruction is an instruction to be sent to the device, enters a start state if the start instruction is the instruction to be sent to the device, feeds back a confirmation signal to the HBS bus based on the source system and the source address obtained through analysis, and sends the confirmation signal to the upgrade controller 4 by the corresponding gateway.
The upgrading controller enables all the devices of a single system or multiple systems to be prepared by OTA (over the air) through the silent instruction and the start instruction, and enables the upgrading controller to execute the step S2 after receiving the confirmation returned by each device.
And S2, after receiving the confirmation of each device, broadcasting the upgrading data through the gateway.
The upgrade data is broadcasted to the HBS bus of each multi-split air conditioning unit through the gateway, as shown in fig. 4, after a silent device receives the upgrade data from the bus, it drops it without processing, and the starting device receives the upgrade data from the bus and then locally stores it.
The upgrading data is divided into a plurality of frames, and each frame is sent at set time intervals until all upgrading data packets are sent.
In some embodiments of the present invention, the upgrade data is composed of a header and a body, as shown in table three below:
watch III
The packet head comprises data length, a source sending system, a source sending address and a data packet instruction code, and the updating data packet body comprises the current packet number and an updating data packet.
And the equipment responding to the starting instruction locally stores the upgrading data every time the upgrading data is received.
And S3, after the upgrade data is sent, sending a query instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway.
After the upgrade data is sent, the upgrade controller 4 sends a query instruction to each multi-split air conditioning unit in a point-to-point unicast direction through the gateway, and as shown in fig. 5, the device and the upgrade controller are also required to make ACK feedback.
The query instruction is used for instructing the device to inquire the state of receiving the upgrade data, acquiring the condition of receiving the upgrade data by the device, and returning the query condition to the upgrade controller 4.
In some embodiments of the present invention, the query command consists of a packet header and a packet body, as shown in table four below:
watch four
The packet header comprises data length, a source sending system, a source sending address, a target system, a target address and an inquiry instruction code, and the packet body is empty or reserved bytes.
And each device of the multi-split air conditioning unit receives and stores the upgrading data, analyzes the query instruction code after receiving the query instruction from the bus, acquires the query requirement of the upgrading controller 4, obtains the total package number of the upgrading data and the CRC (cyclic redundancy check) value from the analyzed content, judges whether the received upgrading data is complete according to the total package number of the upgrading data, and compares the received upgrading data with the CRC value.
And after receiving the query instruction, each device performs success confirmation or failure confirmation based on the comparison result of the CRC, feeds back the success confirmation or failure confirmation to the gateway according to the analyzed message sending source system and the analyzed message sending source address, and returns the message sending source system and the message sending source address to the upgrading controller through the gateway.
And the equipment receiving the silent instruction receives the query instruction and then successfully confirms.
S4, when successful confirmation of the equipment is received, sending an ending instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
after receiving the successful confirmation returned by the device, the upgrade controller 4 sends an end instruction to the multi-split air conditioning unit in a point-to-point unicast manner through the gateway 3, as shown in fig. 6, the device and the upgrade controller are also required to make ACK feedback.
The end instruction is used for indicating the end of the upgrading process, and the bus can be released.
In some embodiments of the present invention, the end command consists of a packet header and a packet body, as shown in table five below:
watch five
The packet header comprises data length, a source sending system, a source sending address, a target system, a target address and an end instruction code, and the packet body is empty or reserved bytes.
And after receiving the ending instruction from the bus, the equipment exits the OTA state release bus and makes an ending confirmation to the upgrading controller according to the sending source system and the sending source address.
And S5, finishing upgrading once after receiving the confirmation of each device.
And when all the devices return the confirmation of receiving the ending instruction, the upgrading controller ends the current upgrading operation.
For each device of the multi-split air conditioning unit, after receiving the end instruction, the OTA state is exited and the bus is released, the device receiving the silence instruction resets and restarts, the device receiving the start instruction reads the stored upgrade data to jump to run bootload for implementing upgrade, and the specific single-machine upgrade mode can be operated according to any existing implementation mode, which is not specifically limited by the invention.
In some embodiments of the present invention, in step S3, for the case where the query instruction determines that the receiving of the upgrade data is failed after being judged and verified, the device feeds back a failure confirmation to the gateway according to the analyzed message source system and message source address, and the gateway returns the failure confirmation to the upgrade controller, and the upgrade controller re-sends the start instruction to the multi-split air conditioning unit through the gateway in a point-to-point manner when receiving the failure confirmation of the device, and re-broadcasts the upgrade data through the gateway after receiving the confirmation returned by the device, and sends the query instruction to the multi-split air conditioning unit through the gateway in a point-to-point manner after the re-sending of the upgrade data is completed until the successful confirmation returned by all devices or the step after the re-sending of the start instruction reaches the set number of times, and sends the end instruction to the multi-split air conditioning unit through the gateway in a point-to-split air conditioning unit.
Through the steps, the upgrading controller simultaneously controls one or more devices of one or more multi-online air conditioning unit systems to implement one-time upgrading, during the period, the bus device enters an OTA state in a normal working mode in a point-to-point unicast mode to yield the bus, and the bus is guaranteed to be yielded and only upgrading data is transmitted in the subsequent upgrading data transmission process; through the silent instruction and the start instruction, the equipment needing to be upgraded receives the upgrading data, the equipment not needing to be upgraded directly discards the upgrading data, and the non-point-to-point upgrading of the specified equipment is achieved.
Based on the upgrading mode provided by the invention, the normal program operation cannot be influenced even if the equipment is failed to be upgraded, only the upgraded broadcast data exists on the bus, and the conflict rate is reduced to the lowest.
It should be noted that, in a specific implementation process, the control part may be implemented by a processor in a hardware form executing a computer execution instruction in a software form stored in a memory, which is not described herein, and all programs corresponding to actions executed by the control part may be stored in a computer readable storage medium of the system in a software form, so that the processor can call and execute operations corresponding to the above modules.
The computer-readable storage media above may include volatile memory, such as random access memory; non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; combinations of the above categories of memory may also be included.
The processor referred to above may also be referred to collectively as a plurality of processing elements. For example, the processor may be a central processing unit, but may also be other general purpose processors, digital signal processors, application specific integrated circuits, field programmable gate arrays or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or the like. A general-purpose processor may be a microprocessor, or may be any conventional processor or the like, or may be a special-purpose processor.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. Many online air conditioning unit upgrade systems includes:
the multi-split air conditioning unit consists of an outdoor unit and a plurality of indoor units, wherein the indoor units are connected with the outdoor unit through HBS buses;
the gateway is used as a communication node and connected to an HBS bus of the multi-split air conditioning unit;
it is characterized by also comprising:
the upgrading controller is communicated with the multi-split air conditioning unit through the gateway, upgrades the equipment of the multi-split air conditioning unit, and comprises:
sending a silencing instruction and a starting instruction to the multi-split air conditioning unit in a point-to-point mode through a gateway; wherein the mute instruction is to instruct the device to enter an OTA state, not to send data to the HBS bus, and to discard data received from the HBS bus; the start instruction is used for indicating the equipment to enter an OTA state and preparing to start receiving the upgrade data;
after receiving the confirmation of each device, broadcasting the upgrading data through the gateway; the upgrading data is divided into a plurality of frames, and each frame is sent at set time intervals;
after the upgrade data is sent, sending a query instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
when successful confirmation of the equipment is received, sending an ending instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
and finishing upgrading once after receiving the confirmation of each device.
2. The multi-split air conditioning unit upgrading system according to claim 1, wherein the silencing instruction and the starting instruction are both composed of a packet header and a packet body; wherein, the packet header comprises a data packet identifier, a data length, a sending source system, a sending source address, a target system, a target address and a silence/start instruction code; the body of the silent instruction is empty or reserved bytes, and the body of the start instruction comprises the total package number of the upgrade data and a CRC (cyclic redundancy check) value;
each device of the multi-split air conditioning unit receives and stores the upgrade data, judges whether the received upgrade data is complete according to the total package number of the upgrade data, and compares the upgrade data with a CRC (cyclic redundancy check) value;
after receiving the query instruction, each device carries out successful confirmation or failure confirmation based on the comparison result of the CRC; and the equipment receiving the silent instruction receives the query instruction and then successfully confirms.
3. The system of claim 2, wherein the upgrade controller retransmits a start command to the multi-split air conditioning unit through the gateway in a point-to-point manner when receiving a failure acknowledgement of the device, retransmits upgrade data through the gateway after receiving an acknowledgement returned by the device, and retransmits an inquiry command to the multi-split air conditioning unit through the gateway in a point-to-point manner after retransmitting the upgrade data, and transmits an end command to the multi-split air conditioning unit through the gateway in a point-to-point manner until receiving successful acknowledgements returned by all devices or when the number of times of repeatedly transmitting the start command reaches a set number.
4. The multi-split air conditioning unit upgrading system according to claim 1, wherein the upgrading data, the query instruction and the end instruction are each composed of a packet header and a packet body;
the package head of the upgrading data comprises a data length, a message sending source system, a message sending source address and a data package instruction code, and the package body of the upgrading data comprises the current package number and an upgrading data package; the packet head of the query/end instruction comprises data length, a source sending system, a source sending address, a target system, a target address and a query/end instruction code, and the packet body of the query/end instruction is empty or reserved bytes.
5. The multi-split air conditioning unit upgrading system according to claim 1, wherein after the upgrading controller finishes upgrading, the device receiving the mute instruction resets and restarts, and the device receiving the start instruction reads the stored upgrading data to implement upgrading.
6. The multi-split air conditioning unit upgrading controller is communicated with the multi-split air conditioning unit through a gateway and is used for upgrading equipment of the multi-split air conditioning unit; the multi-split air conditioning unit consists of an outdoor unit and a plurality of indoor units, wherein the indoor units are connected with the outdoor unit through HBS buses; the gateway is used as a communication node and connected to an HBS bus of the multi-split air conditioning unit;
the method is characterized by upgrading the equipment of the multi-split air conditioning unit through the following steps:
sending a silencing instruction and a starting instruction to the multi-connected air conditioning unit in a point-to-point mode through a gateway; wherein the mute instruction is to instruct the device to enter an OTA state, not to send data to the HBS bus, and to discard data received from the HBS bus; the start instruction is used for indicating the equipment to enter an OTA state and preparing to start receiving the upgrading data;
after receiving the confirmation of each device, broadcasting the upgrading data through a gateway; the upgrading data is divided into a plurality of frames, and each frame is sent at set time intervals;
after the upgrade data is sent, sending a query instruction to the multi-split air conditioning unit through the gateway in a point-to-point mode;
when successful confirmation of the equipment is received, sending an ending instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
and finishing upgrading once after receiving the confirmation of each device.
7. The multi-split air conditioning unit upgrade controller according to claim 6, wherein the upgrade controller retransmits a start instruction to the multi-split air conditioning unit through the gateway in a point-to-point manner when receiving a failure acknowledgement of the device, retransmits upgrade data through the gateway after receiving an acknowledgement returned by the device, and transmits a query instruction to the multi-split air conditioning unit through the gateway in a point-to-point manner after the retransmission of the upgrade data is completed, until the success acknowledgement returned by all devices is received or the number of times after the retransmission of the start instruction reaches a set number, transmits an end instruction to the multi-split air conditioning unit through the gateway in a point-to-point manner.
8. The multi-split air conditioning unit upgrading method is applied to the multi-split air conditioning unit, the multi-split air conditioning unit consists of an outdoor unit and a plurality of indoor units, and the indoor units are connected with the outdoor unit through HBS buses; the gateway is used as a communication node and connected to an HBS bus of the multi-split air conditioning unit;
the upgrading method is characterized by comprising the following steps:
sending a silencing instruction and a starting instruction to the multi-split air conditioning unit in a point-to-point mode through a gateway; wherein the mute instruction is to instruct the device to enter an OTA state, not to send data to the HBS bus, and to discard data received from the HBS bus; the start instruction is used for indicating the equipment to enter an OTA state and preparing to start receiving the upgrading data;
after receiving the confirmation of each device, broadcasting the upgrading data through the gateway; the upgrading data is divided into a plurality of frames, and each frame is sent at set time intervals;
after the upgrade data is sent, sending a query instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
when successful confirmation of the equipment is received, sending an ending instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway;
and finishing upgrading once after receiving the confirmation of each device.
9. The multi-split air conditioning unit upgrading method according to claim 8, wherein the silencing instruction and the starting instruction are both composed of a packet header and a packet body; wherein, the packet header comprises a data packet identifier, a data length, a sending source system, a sending source address, a target system, a target address and a silence/start instruction code; the body of the silent instruction is empty or reserved bytes, and the body of the start instruction comprises the total package number of the upgrade data and a CRC (cyclic redundancy check) value; the method further comprises the following steps:
each device of the multi-split air conditioning unit receives and stores upgrading data, judges whether the received upgrading data is complete according to the total package number of the upgrading data, and compares the received upgrading data with a CRC (cyclic redundancy check) value;
after receiving the query instruction, each device carries out successful confirmation or failure confirmation based on the comparison result of the CRC; and the equipment receiving the silent instruction receives the query instruction and then successfully confirms.
10. A multi-split air conditioning unit upgrading method as claimed in claim 9, further comprising:
and after the updating data is retransmitted, sending a query instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway until the successful confirmation returned by all the equipment is received or the step after the starting instruction is repeatedly sent reaches the set times, and sending an ending instruction to the multi-split air conditioning unit in a point-to-point mode through the gateway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| US20150276252A1 (en) * | 2012-12-20 | 2015-10-01 | Mitsubishi Electric Corporation | Air conditioning system and gateway apparatus |
| JP6723829B2 (en) * | 2015-09-14 | 2020-07-15 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ | Gateway device, firmware updating method and control program |
| CN106681777A (en) * | 2017-01-18 | 2017-05-17 | 青岛海尔空调电子有限公司 | Quick program updating method for multi-split unit |
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