CN-121977271-A - Remote control and upgrading method and system for air disc of multi-split air conditioner

CN121977271ACN 121977271 ACN121977271 ACN 121977271ACN-121977271-A

Abstract

The application relates to a remote control and upgrading method and a remote control and upgrading system for an inner machine fan disc, wherein a linkage control parameter packet generating module is arranged in an outer machine controller capable of performing remote control and upgrading, so that the inner machine fan disc which is in communication connection with the outer machine controller through an RS485 interface realizes indirect remote control and function optimization, and an upgrading path of the inner machine fan disc, which takes the outer machine controller as a hinge and takes a linkage control parameter packet as a medium, breaks through the hardware limit that the inner machine fan disc cannot be remotely upgraded, and can form a high-efficiency cooperative mode of ' one-time outer machine upgrading to drive multiple inner machine fan discs to optimize functions ', without directly programming the inner machine fan disc '.

Inventors

HUANG MINGBO
LIU ZHIWEN
LIU YANG
ZHANG JING

Assignees

广东芬尼能源技术有限公司

Dates

Publication Date: 20260505
Application Date: 20251203

Claims (10)

1. A remote control and upgrade method for an air disc of a multi-split air conditioner is characterized in that: the external machine controller in communication connection with the cloud server executes the following steps: Receiving a new control program sent by a cloud server; analyzing the new control program to obtain the enabling state and control parameters corresponding to each load of the wind disc of the internal machine; Writing the enabling state and control parameters of each load into a register to generate a coordinated control parameter packet; the inner machine fan disc controller which is in communication connection with the outer machine controller through an RS485 interface executes the following steps: receiving a linkage control parameter packet; analyzing the data of each register in the coordinated control parameter packet, and storing the enabling state and control parameters of each load of the internal machine fan disc in the new control program; and driving the corresponding load to execute linkage action according to the stored enabling state and control parameters of each load.
2. The method for remotely controlling and upgrading a fan disc of a multi-split air conditioner according to claim 1, wherein the coordinated control parameter packet is formed in the following manner: writing the enabling state of each load into a first register, wherein the 0 th bit to the n-1 th bit of the first register sequentially correspond to the enabling states of the first load to the n-th load; And writing the control parameters belonging to each load into the second register to the n+1th register respectively.
3. The method for remotely controlling and upgrading a fan disc of a multi-split air conditioner according to claim 2, wherein the 0 th bit of the first register corresponds to a first load electronic expansion valve, the 1 st bit corresponds to a second load fan linkage, the 2 nd bit corresponds to a third load electric heating linkage and the 3 rd bit corresponds to a fourth load drainage pump; The second register is written into the linkage opening degree of the electronic expansion valve, the third register is written into the linkage rotating speed of the fan, the fourth register is written into the electric heating linkage control logic, and the fifth register is written into the drainage pump linkage control logic.
4. The remote control and upgrade method of the air conditioner in the multi-split air conditioner according to claim 2, wherein when analyzing the data of each register in the coordinated control parameter packet, the method is as follows: sequentially analyzing information in the coordinated control parameter packet according to the sequence from the first register to the n+1th register; Sequentially reading and analyzing the enabling states of the first load to the nth load from the first register; And sequentially reading control parameters corresponding to the first load to the n-th load from the second register to the n+1-th register.
5. The remote control and upgrade method of an air conditioner fan disc in a multi-split air conditioner according to any one of claims 1 to 4, wherein before the coordinated control parameter packet is sent to the air conditioner fan disc controller through an RS485 interface, the method further comprises checking the coordinated control parameter packet, and specifically comprises the following steps: Calculating a CRC value of the coordinated control parameter packet by adopting a CRC method; And (5) attaching the CRC value to the tail part of the coordinated control parameter packet.
6. The method for remotely controlling and upgrading a fan disc of a multi-connected air conditioner according to claim 5, wherein before analyzing the data of each register in the coordinated control parameter packet, the method further comprises checking a CRC value, and specifically comprises the following steps: SA1, extracting a CRC check value from a received coordinated control parameter Bao Weibu with the CRC check value; SA2, recalculating the CRC value of the coordinated control parameter packet with the CRC value removed according to the same CRC method in the step S5; SA3, comparing the recalculated CRC check value with the CRC check value extracted from the coordinated control parameter Bao Weibu: if the two parameters are consistent, indicating that the linkage control parameter packet has no error in the transmission process, and continuing the subsequent analysis step; If the parameters are inconsistent, the transmission of the coordinated control parameter packet is judged to be wrong, and a retransmission request signal is sent to the external controller through an RS485 interface.
7. The method for remotely controlling and upgrading an air conditioner fan disc in a multi-split air conditioner according to claim 1, wherein the outer machine control adopts a DTU module to establish a safe connection with a cloud server through a wireless network.
8. The remote control and upgrading system for the multi-split inner machine wind disc is characterized by comprising an outer machine controller and an inner machine wind disc controller, wherein the outer machine controller is in communication connection with a cloud server and is in communication connection with the inner machine wind disc controller through an RS485 interface, and the outer machine controller comprises a cloud communication module, a program analysis module and a linkage control parameter packet generation module; the cloud communication module is used for receiving a new control program sent by the cloud server; The program analysis module is used for analyzing the new control program to obtain the enabling state and the control parameters corresponding to each load of the inner machine fan disc; the coordinated control parameter packet generation module is used for writing the enabling state and the control parameters of each load into a register to generate a coordinated control parameter packet; The inner machine fan disc machine controller comprises a data receiving module, a parameter analysis storage module and a load control module; the data receiving module is used for receiving the coordinated control parameter packet; The parameter analysis storage module is used for analyzing the data of each register in the coordinated control parameter packet and storing the enabling state and control parameters of each load of the internal machine fan disc in the new control program; The load control module is used for driving the corresponding load to execute linkage action according to the stored enabling state and control parameters of each load.
9. The remote control and upgrade system of an inner fan tray of a multi-split air conditioner according to claim 8, wherein the outer fan controller further comprises a first parameter packet verification module, the first parameter packet verification module is configured to execute the following steps before transmitting a coordinated control parameter packet to the inner fan tray controller through an RS485 interface: Calculating a CRC value of the coordinated control parameter packet by adopting a CRC method; And (5) attaching the CRC value to the tail part of the coordinated control parameter packet.
10. The remote control and upgrade system of an air conditioner fan of a multi-split air conditioner according to claim 9, wherein the air conditioner fan controller further comprises a second parameter packet verification module, the second parameter packet verification module is configured to execute the following steps before analyzing the register data in the coordinated control parameter packet: SA1, extracting a CRC check value from a received coordinated control parameter Bao Weibu with the CRC check value; SA2, recalculating the CRC value of the coordinated control parameter packet with the CRC value removed according to the same CRC method in the step S5; SA3, comparing the recalculated CRC check value with the CRC check value extracted from the coordinated control parameter Bao Weibu: if the two parameters are consistent, indicating that the linkage control parameter packet has no error in the transmission process, and continuing the subsequent analysis step; If the parameters are inconsistent, the transmission of the coordinated control parameter packet is judged to be wrong, and a retransmission request signal is sent to the external controller through an RS485 interface.

Description

Remote control and upgrading method and system for air disc of multi-split air conditioner Technical Field The invention relates to the technical field of heat pump control, in particular to a method and a system for remotely controlling and upgrading an air disc of an internal machine of a multi-split air conditioner. Background The fan coil (simply called fan disc) is directly connected into a multi-split air conditioner (VRV) system, and is managed by a networking temperature controller or an intelligent controller, so that the fan coil is called as the multi-split inner fan disc. The air disc of the multi-split inner machine reserves the heat exchange mode of the independent refrigerant flow path of the air disc, but the start and stop, the wind speed, the set temperature and the like are all uniformly scheduled by the multi-split outer machine, so that the multi-split inner machine can be operated by local keys and can be controlled in a centralized way remotely on a platform. The program for controlling the fan coil needs to be updated according to working conditions, application environments and the like, and if the fan coil in the multi-connected air conditioner cannot be updated remotely, the control program can be updated only through an off-line burning program. Off-line programming generally requires professional after-sales personnel to carry specific equipment to go to the site for operation, and in large commercial complexes or high-rise office buildings, the multi-online system may cover multiple floors and large areas, and after-sales personnel need to perform programming floor by floor and fan disc by fan disc. The method not only can influence the normal operation of a commercial place, but also can cause the dissatisfaction of users due to the fact that the indoor environment comfort level is reduced due to overlong operation time, and in addition, the frequent after-sales service also increases the labor cost of multiple online system suppliers. Disclosure of Invention Therefore, the invention aims to provide a remote control and upgrading method for an inner machine fan disc of a multi-split air conditioner, which is characterized in that a linkage control parameter packet is added between an outer machine and the inner machine fan disc, and the optimization and the upgrading of the control program of the air disc of the inner machine are realized by means of the remote upgrading of the outer machine program, and after-sales personnel are not required to go to the gate for processing. A remote control and upgrade method for an air disc of a multi-split air conditioner comprises the following steps: the external machine controller in communication connection with the cloud server executes the following steps: Receiving a new control program sent by a cloud server; analyzing the new control program to obtain the enabling state and control parameters corresponding to each load of the wind disc of the internal machine; Writing the enabling state and control parameters of each load into a register to generate a coordinated control parameter packet; the inner machine fan disc controller which is in communication connection with the outer machine controller through an RS485 interface executes the following steps: receiving a linkage control parameter packet; analyzing the data of each register in the coordinated control parameter packet, and storing the enabling state and control parameters of each load of the internal machine fan disc in the new control program; and driving the corresponding load to execute linkage action according to the stored enabling state and control parameters of each load. Compared with the prior art, the invention has the advantages that the linkage control parameter packet generating module is arranged in the external machine controller capable of carrying out remote control and upgrading, so that the internal machine wind disc which is in communication connection with the external machine controller through the RS485 interface realizes indirect remote control and function optimization, the upgrading path of the internal machine wind disc which takes the external machine controller as a hinge and takes the linkage control parameter packet as a medium breaks through the hardware limit that the internal machine wind disc cannot be remotely upgraded, and the efficient collaborative mode of 'one-time external machine upgrading to drive multiple internal machine wind disc function optimization' can be formed without directly programming the internal machine wind disc. Meanwhile, the invention fully utilizes the existing RS485 communication interface of the system, does not need to additionally increase a hardware interface or refit the inner machine fan disc, and can realize the remote upgrading function of the inner machine fan disc only through program optimization of a software layer. The soft innovation mode greatly reduces the reconstruction cost of the existing har