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Bus resource allocation method and device and air conditioning system

A technology of an air conditioning system and a distribution method, which is applied in the field of automation and can solve the problems of low utilization of CAN bus resources and the like

Active Publication Date: 2020-10-27
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a bus resource allocation method and device, and an air-conditioning system to solve the technical problem of low utilization of CAN bus resources in the related art

Method used

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  • Bus resource allocation method and device and air conditioning system
  • Bus resource allocation method and device and air conditioning system
  • Bus resource allocation method and device and air conditioning system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0033] The method embodiment provided in Embodiment 1 of the present application may be executed in a processor, an air conditioner, an air conditioner external unit, a controller, or similar electronic devices. Take running on the air conditioner as an example, figure 1 It is a structural block diagram of an air conditioner for allocating bus resources in an embodiment of the present invention. like figure 1 As shown, the air conditioner 10 may include one or more ( figure 1 Only one is shown in ) processor 102 (processor 102 may include but not limited to processing devices such as microprocessor MCU or programmable logic device FPGA) and memory 104 for storing data. Optionally, the above-mentioned air conditioner can also be Including, input and output devices 108 . Those of ordinary skill in the art can understand that, figure 1 The shown structure is only for illustration, and it does not limit the structure of the above-mentioned air conditioner. For example, the ai...

Embodiment 2

[0078] In this embodiment, a device for allocating bus resources and an air-conditioning system are also provided, which are used to realize the above-mentioned embodiments and preferred implementation modes, and those that have already been described will not be described in detail. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0079] The embodiment provides a device for allocating bus resources, Figure 4 is a structural block diagram of a device for allocating bus resources in an embodiment of the present invention, and the device includes: an acquisition module 40 and an adjustment module 42, wherein,

[0080] The obtaining module 40 is used to obtain bus occupancy parameters of the air-condi...

Embodiment 3

[0091] An embodiment of the present invention also provides a storage medium, in which a computer program is stored, wherein the computer program is set to execute the steps in any one of the above method embodiments when running.

[0092] Optionally, in one aspect of this embodiment, the above-mentioned storage medium may be configured to store a computer program for performing the following steps:

[0093] S1. Obtain the bus occupancy parameters of the air conditioning system, wherein the air conditioning system connects the external unit and multiple internal units through the CAN bus of the controller area network, and the bus occupancy parameters are used to represent the access of the internal units to the CAN bus Quantity and bus occupancy information;

[0094] S2. Adjust the communication cycle of the internal unit according to the bus occupation parameter.

[0095] Optionally, in this embodiment, the above-mentioned storage medium may include but not limited to: U di...

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Abstract

The invention provides a bus resource allocation method and device and an air conditioning system. The method comprises the steps: obtaining bus occupation parameters of the air conditioning system, wherein the air conditioning system is in communication connection with an outdoor unit and a plurality of indoor units through a controller area network (CAN) bus, and the bus occupation parameters are used for representing the access number of the indoor units of the CAN bus and bus occupation information; and adjusting the communication periods of the indoor units according to the bus occupationparameter. Through the method and the device, the technical problem of low utilization rate of CAN bus resources in related technologies is solved, the resource utilization rate of the CAN bus is improved, the maximum utilization of the bus resources is realized, and the data updating speed of the indoor units and the outdoor unit is also improved.

Description

technical field [0001] The invention relates to the field of automation, in particular to a bus resource allocation method and device, and an air-conditioning system. Background technique [0002] In related technologies, a Controller Area Network (CAN) is one of the most widely used field buses at present, and the CAN bus is a serial communication bus that effectively supports distributed control or real-time control. The distributed control system built by the CAN bus has the advantage of strong real-time data communication between each node device. In the distributed control system built by the CAN bus, each device node can actively send information to other device nodes at any time , according to the priority order of the information sent by each device node to determine the communication order. [0003] In related technologies, an air-conditioning network usually has many internal units and a large amount of data. If the RS485 communication bus technology is adopted, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40F24F11/58
CPCF24F11/58H04L12/40006H04L12/40013
Inventor 彭志富龙腾黄超洪蔡海春宋飞方许丹
Owner GREE ELECTRIC APPLIANCES INC
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