CN114741107A - Program online upgrading method and system and air conditioner - Google Patents
Program online upgrading method and system and air conditioner Download PDFInfo
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- CN114741107A CN114741107A CN202210498725.2A CN202210498725A CN114741107A CN 114741107 A CN114741107 A CN 114741107A CN 202210498725 A CN202210498725 A CN 202210498725A CN 114741107 A CN114741107 A CN 114741107A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
- G06F8/656—Updates while running
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
- G06F8/63—Image based installation; Cloning; Build to order
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5061—Partitioning or combining of resources
- G06F9/5077—Logical partitioning of resources; Management or configuration of virtualized resources
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Abstract
The invention discloses a program online upgrading method and system and an air conditioner. The program online upgrading method comprises the following steps: dividing the physical memory address of the device controller needing program upgrading into at least a conventional application program area and an upgrading processing program area; when the equipment controller establishes communication connection with an external online upgrading device to prepare for upgrading, the equipment controller is switched from the conventional application program area to an upgrading processing program area to be upgraded, logic data and upgrading data are interacted with the online upgrading device at the same time, and the online upgrading device replaces the equipment controller to control equipment. The invention realizes the non-stop upgrading of the equipment with less chip resources and cost.
Description
Technical Field
The invention relates to the technical field of program upgrading and updating, in particular to a program online upgrading method and a program online upgrading system without stopping normal operation of equipment.
Background
In order to make the hardware products meet the requirements of the user for updating, the program upgrade of the device is a matter which needs to be considered by most devices.
Taking air conditioning equipment as an example, with the rise of consumer service awareness, after-market service of air conditioning products becomes more and more important, and some after-market problems are solved by upgrading programs of controllers of indoor units and/or outdoor units. Programs in an indoor unit controller and an outdoor unit controller of an existing air conditioner are basically embedded controller programs.
The existing embedded controller program is generally upgraded in the following ways:
one is to directly replace the new indoor machine controller or outdoor machine controller, and the disadvantage of the method is that the replacement of the controller is involved, and the replacement cost is high;
secondly, the program is updated through a manufacturer IDE (Integrated Drive Electronics, electronic Integrated Drive or Integrated device circuit) and a simulator, and the method has the defects of very complex operation and unstable programming quality;
and thirdly, realizing automatic upgrading through communication data interaction by utilizing the online upgrading function of the controller chip.
Compared with the former two modes, the online upgrade is the most convenient scheme, but the online upgrade usually requires the unit to perform shutdown first, and for a special product of an air conditioner, once shutdown is performed, great trouble is caused to the daily life of a user. This is achieved by
Therefore, it is an urgent technical problem in the art to provide a method and a system for upgrading a program on-line, which has a low cost and allows normal operation of a device.
Disclosure of Invention
The invention provides a program online upgrading method and system and an air conditioner, and aims to solve the technical problems that in the prior art, the cost is high, and equipment needs to be shut down and upgraded.
The program online upgrading method provided by the invention comprises the following steps:
dividing the physical memory address of the device controller needing program upgrading into at least a conventional application program area and an upgrading processing program area;
when the equipment controller establishes communication connection with an external online upgrading device to prepare for upgrading, the equipment controller is switched from the conventional application program area to an upgrading processing program area to be upgraded, logic data and upgrading data are interacted with the online upgrading device at the same time, and the online upgrading device replaces the equipment controller to control equipment.
Further, still include:
and when the equipment controller finishes upgrading, the equipment controller switches from the upgrading processing program area to the conventional application program area to control the equipment and informs the online upgrading device of finishing upgrading.
Further, the device controller is switched from the regular application program area to the upgrading processing program area for upgrading, and the online upgrading device sends an online upgrading instruction to trigger the upgrading.
Further, the online upgrading instruction is triggered and sent through a key.
Further, the logic data includes operating parameters of the device and control parameters of the device.
Further, the physical storage address of the online upgrading device is also at least divided into a conventional application program area and an upgrading processing program area which are the same as those of the device controller; and when the online upgrading device or the equipment controller is powered on, the identity of the online upgrading device or the equipment controller is identified.
Further, the equipment controller and/or the online upgrading device can identify the identity of the equipment controller and/or the online upgrading device through the pull-up and pull-down resistor selection interface circuit or the dial switch.
Furthermore, the physical memory address of the online upgrading device is not partitioned, and the online upgrading device is provided with a program which can realize the same function of the program in the conventional application program area and the upgrading processing program area.
The program online upgrading system provided by the invention comprises an equipment controller and an online upgrading device, wherein the equipment controller and the online upgrading device are upgraded by adopting the program online upgrading method in the technical scheme.
The air conditioner provided by the invention adopts the program online upgrading system of the technical scheme, and the equipment controller comprises at least one of an indoor unit controller and an outdoor controller.
Further, the equipment controller comprises a first communication interface for communicating with other nodes of the unit and a second communication interface for communicating with the online upgrading device.
Further, the first communication interface and/or the second communication interface is a UART interface.
The invention divides the device controller, respectively burns the program controlled conventionally and the upgraded program in different divisions, and prepares an online upgrading device, so that the online upgrading device also has the corresponding program, and the program can realize the functions of conventional control and upgrading. When the equipment is upgraded, the online upgrading device can communicate with a partition where an upgrading program of the controller of the equipment is located, the online upgrading device sends a control instruction and forwards the control instruction to each controlled load through the controller of the equipment, and therefore the equipment is upgraded without stopping.
The technical scheme of the invention realizes the non-stop online upgrade of the controller program by utilizing less chip resources, thereby not only saving the chip resources, but also reducing the cost of the non-stop upgrade.
Drawings
The invention is described in detail below with reference to examples and figures, in which:
FIG. 1 is a principal flow diagram of the present invention.
Fig. 2 is an overall flow diagram of one embodiment of the present invention.
Fig. 3 is a structural topology diagram of one embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Thus, a feature indicated in this specification will serve to explain one of the features of one embodiment of the invention, and does not imply that every embodiment of the invention must have the stated feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.
As shown in fig. 1 and fig. 2, in the program online upgrade method of the present invention, the physical memory address of the device controller that needs to be upgraded is divided into at least a normal application program area and an upgrade processing program area. For example, the physical memory address of the device controller is divided into two partitions, a regular application area and an upgrade handler area. The program in the routine application program area is used for realizing the normal operation of the equipment, the program in the upgrading processing program area is used for realizing the upgrading of the equipment, and the upgrading processing program area only relates to upgrading and some matching functions, so that the occupied chip resources are less.
Normally, the device controller runs in the regular application area, and when the device controller needs to be upgraded, an external online upgrade apparatus capable of establishing a communication connection with the device controller may be prepared. For example, the external online upgrading device can establish communication connection with the equipment controller in a wired communication mode.
When the device controller establishes communication connection with an external online upgrading device to prepare for upgrading, the device controller is switched from a conventional application program area to an upgrading processing program area for upgrading, and simultaneously, the device controller and the online upgrading device mutually exchange logic data and upgrading data, the online upgrading device replaces the device controller to control the device, wherein the online upgrading device is a device capable of being repeatedly reused, namely, for the same device, a plurality of devices can share the same online upgrading device, so that the upgrading hardware cost is reduced, the device controller still takes charge of the original normal operation function and upgrading function, only partitions are carried out on a physical storage address without increasing the expense of a device chip, and the online upgrading device replaces the function of controlling the device to normally operate by the device controller during the upgrading of the device controller, therefore, the equipment can be upgraded on line without stopping, the whole technical scheme has low cost and simple control, and the equipment can be upgraded on line without stopping.
When the upgrade of the equipment controller is finished, the equipment controller is switched to the conventional application program area from the upgrade processing program area again to restore the control of the equipment, and simultaneously informs the online upgrade device of finishing the upgrade, and after the online upgrade device receives a signal of finishing the upgrade, the online upgrade device stops the control of the equipment and returns to the most initial state of preparing for upgrade.
In an embodiment, the device controller switches from the regular application program area to the upgrade processing program area for upgrading, the switching action may be triggered by the online upgrade apparatus sending the online upgrade instruction, and the specific online upgrade instruction may be sent by triggering a key or by counting a delay, for example, after the online upgrade apparatus establishes a communication connection with the device controller, the online upgrade apparatus sends the online upgrade instruction by delaying for several seconds, and a person skilled in the art may also use other methods of triggering an instruction to trigger the online upgrade instruction, which all fall within the protection scope of the present invention.
When the equipment controller runs in the program area of the upgrading processing, the logic data interacted between the equipment controller and the online upgrading device mainly comprises logic data including operation parameters of the equipment and control parameters of the equipment, and as all loads controlled by the equipment controller are in communication connection with the equipment controller, the equipment controller needs to acquire some operation parameters of the equipment, such as working state parameters and the like, and then sends the operation parameters to the online upgrading device, so that a program corresponding to the online upgrading device can give correct control parameters according to the acquired operation parameters, and the control parameters are transmitted to the equipment controller by the online upgrading device and then control the corresponding loads or corresponding parts of the equipment.
The online upgrading device has two implementation modes.
In one embodiment, the online upgrade apparatus may be a duplicate of the device controller, i.e., the physical memory address of the online upgrade apparatus is also divided into at least a regular application area and an upgrade handler area identical to the device controller. For example, the physical memory address of the online upgrade apparatus is divided into two partitions, namely a regular application program area and an upgrade processing program area. At this time, since the device controller and the online upgrade apparatus run the same program, the device controller recognizes its own identity when the device controller is powered on. Similarly, when the online upgrade device is powered on, the identity of the online upgrade device needs to be identified.
The identity recognition mode is various, and the equipment controller and/or the online upgrading device can recognize the identity of the equipment controller and/or the online upgrading device through the pull-up and pull-down resistor selection interface circuit or the dial switch. Other identification means may be used by those skilled in the art to identify whether the program is running on the device controller or the online upgrade at that time.
In another embodiment, the physical memory address of the online upgrade apparatus may not be partitioned, as long as the online upgrade apparatus has a program that can implement the same function of the program in the normal application program area and the upgrade processing program area, and the program that implements the same function may be a set of whole programs that implement the function of the program burned in the normal application program area of the device controller and the function of the program burned in the upgrade processing program area through different modules. At this time, the program burning mode and the code in the online upgrade apparatus are different from the program in the device processor, so in this embodiment, the device processor and the online upgrade apparatus do not need to identify their own identities when powered on, and each of the programs can be operated under the condition of mutual communication and interaction.
The invention also protects a corresponding program online upgrading system, which comprises an equipment controller and an online upgrading device, wherein the equipment controller and the online upgrading device are upgraded by adopting the program online upgrading method described in any embodiment of the technical scheme.
The invention also protects the air conditioner, and adopts the program online upgrading system of the invention, when the equipment is specifically the air conditioner, the equipment controller of the invention comprises at least one of an indoor machine controller and an outdoor controller.
As shown in fig. 3, the device controller has at least two communication interfaces, including a first communication interface for communicating with the rest of the nodes of the plant group and a second communication interface for communicating with the online upgrade apparatus, and the rest of the interfaces are used for system load control and detection. In one embodiment, the first communication interface and/or the second communication interface is a UART interface. The conventional application program area in the device controller mainly adopts a unit communication protocol, similarly, if the online upgrading device adopts the device controller copy version, the conventional application program area also adopts the unit communication protocol, the upgrading processing program area of the device controller mainly adopts an upgrading processing protocol, and the upgrading processing program area of the corresponding online upgrading device in the figure also adopts the upgrading processing protocol.
An embodiment of the program online upgrade method according to the present invention is described in detail below with an air conditioner as a specific example.
In this embodiment, the controller (which may be an indoor controller or an outdoor controller) to be upgraded and the online upgrade apparatus use the same main control chip, IO port configuration, and program code.
The controller to be upgraded needs to include two or more UARTs or similar communication interfaces, one of which is responsible for communicating with the rest of the nodes (rest of the nodes) of the unit, the other of which is used for online upgrade processing, and the rest of which is used for system load control and detection.
The on-line upgrading device only reserves a minimum control system and a communication interface on the basis of a controller needing to be upgraded and synchronously adds a storage module. The control system is used for executing system logic processing and on-line upgrading functions, the communication interface is used for carrying out data interaction with a controller needing to be upgraded, and the storage module is used for storing a program needing to be upgraded.
Since the same program code is used for the controller to be upgraded and the online upgrading device, they are required to identify their identities first when they are powered on. The specific identification realization mode can be realized by a pull-up and pull-down resistor selection port circuit or a dial switch and the like.
The controller and the online upgrading device which need to be upgraded need to be partitioned, and program codes are divided into two large areas, namely a conventional application program area and an upgrading processing program area. The controller of the unit required to be upgraded operates in the conventional application program area when not entering the online upgrading mode, and operates in the upgrading processing program area when entering the online upgrading mode. And the specific program area operated by the online upgrading device is completely opposite to the controller needing upgrading.
Different partitions have different functions, the conventional application program area is mainly responsible for the logic operation of the unit, the first communication interface is responsible for communicating with other nodes of the unit, the second communication interface is responsible for communicating with the online upgrading device, and when the second communication interface receives a corresponding instruction for entering the upgrading of the online upgrading device, the operation of the conventional application program area is switched to the upgrading processing program area. The upgrading processing program area completely deletes the operation logic of the unit, and only reserves the functions of the load control and communication part of the unit so as to save chip resources.
The specific upgrade mode entering mode of the controller of the unit can be entered through operations such as key pressing.
The controller of the unit to be upgraded mainly has two interactive protocols, and the interaction in the first communication interface is a conventional running protocol of the unit; the second communication interface adopts an upgrade processing protocol.
The data involved in the upgrade processing protocol mainly includes the following contents.
1. The operation parameters required by the system detected by the unit controller and other nodes, such as the ambient temperature of the unit, the user set temperature of the unit, the system pressure and the like;
2. the online upgrading device operates and calculates system load control parameters such as compressor frequency, fan rotating speed, electronic expansion valve step number and the like according to conventional application programs;
3. program data, i.e., upgraded program code, is upgraded online.
The controller of the unit runs the unit control logic through a conventional application program area, the first communication interface keeps communication with other nodes, and the second communication interface waits for an online upgrading instruction.
The online upgrading device operates according to the upgrading processing program area, waits for an online upgrading instruction sent by a user, triggers the online upgrading instruction through a key and the like, and transmits the online upgrading instruction to a controller needing to be upgraded of the unit through the second communication interface.
And switching the controller to be upgraded of the unit to an upgrade processing program area for operation, and returning to enter an upgrade state, a current operation state of the unit and system operation parameters, wherein the original load output is kept unchanged in the process.
And the online upgrading device is switched to a conventional application program area to operate, the control logic is operated according to the operation parameters (such as system parameters) returned by the controller required to be upgraded by the unit, and the latest calculated load control parameters are returned. And synchronously, the online upgrading device reads the self storage equipment or obtains the program code required to be upgraded through other external equipment, and the program code and the load control parameter are distributed to the controller required to be upgraded of the unit.
And the controller to be upgraded of the unit controls the load operation according to the result calculated by the online upgrading device, and maintains the interaction with other nodes according to the unit protocol through the first communication interface. And synchronously, the controller required to be upgraded by the unit can upgrade the conventional application program area of the controller according to the received program codes. And after the program upgrading of the conventional application program area of the controller required to be upgraded by the unit is completed, returning a completion mark to the online upgrading device. And the online upgrading device is recovered to the initial state, waits for the next upgrading, and returns an upgrading end mark to the controller of the unit to be upgraded.
The stack controller switches back to the regular application area and continues to run in logical calculations based on the current operating parameters.
The conventional application program is operated by the online upgrading device, so that the unit does not stop in the upgrading process, and if the upgrading program is directly operated by the controller of the unit, the control of the unit needs to be stopped in the upgrading process.
In addition, the online upgrading device is only temporarily upgraded equipment, and needs to be removed after upgrading is completed, so that the online upgrading device cannot be always placed in the unit to replace the controller of the unit to operate.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (12)
1. A program online upgrading method is characterized by comprising the following steps:
dividing the physical memory address of the device controller needing program upgrading into at least a conventional application program area and an upgrading processing program area;
when the equipment controller establishes communication connection with an external online upgrading device to prepare for upgrading, the equipment controller is switched from the conventional application program area to an upgrading processing program area to be upgraded, logic data and upgrading data are interacted with the online upgrading device at the same time, and the online upgrading device replaces the equipment controller to control equipment.
2. The program online upgrade method of claim 1, further comprising:
and when the equipment controller finishes upgrading, the equipment controller switches from the upgrading processing program area to the conventional application program area to control the equipment and informs the online upgrading device of finishing upgrading.
3. The program online upgrade method according to claim 1, wherein the device controller switching from the regular application program area to the upgrade handler area for upgrading is triggered by the online upgrade apparatus sending an online upgrade instruction.
4. The program online upgrade method according to claim 2, wherein the online upgrade instruction is sent by key activation.
5. The program online upgrade method according to claim 1, wherein the logic data includes operating parameters of a device and control parameters of the device.
6. The program online upgrade method according to any one of claims 1 to 5, wherein a physical memory address of the online upgrade apparatus is also divided into at least a regular application program area and an upgrade processing program area, which are the same as the device controller; and when the online upgrading device or the equipment controller is powered on, the identity of the online upgrading device or the equipment controller is identified.
7. The program online upgrade method according to claim 6, wherein the device controller and/or the online upgrade apparatus recognizes their own identity through a pull-up and pull-down resistor selection interface circuit or a dial switch.
8. The program online upgrade method according to any one of claims 1 to 5, wherein a physical memory address of the online upgrade apparatus is not partitioned, and the online upgrade apparatus has a program that can implement the same function as the program in the regular application program area and the upgrade processing program area.
9. A program online upgrade system, comprising a device controller and an online upgrade apparatus, wherein the device controller and the online upgrade apparatus are upgraded by the program online upgrade method according to any one of claims 1 to 8.
10. An air conditioner characterized in that the on-line program upgrading system according to claim 9 is employed, and the equipment controller includes at least one of an indoor unit controller and an outdoor controller.
11. The air conditioner according to claim 10, wherein the equipment controller includes a first communication interface for communicating with the rest of the nodes of the unit, and a second communication interface for communicating with the online upgrade apparatus.
12. The air conditioner according to claim 11, wherein the first communication interface and/or the second communication interface is a UART interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210498725.2A CN114741107A (en) | 2022-05-09 | 2022-05-09 | Program online upgrading method and system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210498725.2A CN114741107A (en) | 2022-05-09 | 2022-05-09 | Program online upgrading method and system and air conditioner |
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| Publication Number | Publication Date |
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| CN114741107A true CN114741107A (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210498725.2A Pending CN114741107A (en) | 2022-05-09 | 2022-05-09 | Program online upgrading method and system and air conditioner |
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- 2022-05-09 CN CN202210498725.2A patent/CN114741107A/en active Pending
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