WO2007056947A1

WO2007056947A1 - A remote monitoring centralized air conditioner system and corresponding group control methord

Info

Publication number: WO2007056947A1
Application number: PCT/CN2006/003079
Authority: WO
Inventors: Haichuan Song; Peng Ren; Peng Li
Original assignee: Gree Electric Appliances Inc. Of Zhuhai
Priority date: 2005-11-16
Filing date: 2006-11-16
Publication date: 2007-05-24
Also published as: CN100407652C; CN1968126A

Abstract

A remote monitoring digital multiple air conditioner system and corresponding group control method, which relates to home appliances of remote operation. In the method, computer polls all the communication modules ,and then sends group information to every communication module, the operation status information of each indoor units that connects to the communication module is acquired by the communication module at the same time (S5). Next step is performing the group control, that is the computer sends both the group number of a set of indoor units that requiring controlled and the control information to every communication module, and each communication module sends the control information to the indoor units which connecting to the communication modules and matching to the group number, the matched indoor units respond it, then completely control (S6). The remote monitoring centralized air conditioner system includes upper machine which has an apparatus with function of receiving and sending information, and lower machine which at least contains a set of units including a communication module, an outdoor unit, a plurality of indoor units. The upper machine and the indoor units of the lower machine communicate each other over the communication modules. The advantage of present invention is that users can control the indoor units in manner of either machine units or user-defined groups.

Description

Remote monitoring central air conditioning unit and grouping control method

The invention and the field of air conditioning, in particular, relate to the field of remote operation of central air conditioners.

Background technique

With the widespread use of central air-conditioning in residential buildings and commercial buildings. The current number of central air-conditioning units is increasing, the distribution of individual units in buildings is also scattered, the network structure is increasingly complex, and the control of air conditioners by users is becoming more and more complicated. With the rapid development of computer hardware and software technology, it has been realized to remotely monitor the operating status of the central air conditioning unit by using a computer. However, the original remote monitoring mode is generally grouped by unit, that is, all indoor units corresponding to one outdoor unit are grouped, and all indoor units of the group are issued commands. However, after running, this grouping method has highlighted many drawbacks. The most important one is that the indoor units under different units cannot be monitored and controlled at the same time, but often the indoor units of the same room belong to different outdoor units. It is not possible to monitor and control the indoor unit of the room at the same time. Therefore, the traditional control method can no longer meet the needs of people, and it is urgent to develop a group control method suitable for remote monitoring of central air conditioning units.

Summary of the invention

It is an object of the present invention to provide a group control method for remotely monitoring a central air conditioning unit and a central air conditioning unit. The method fully utilizes the existing advanced computer hardware and mature and stable computer software technology, and connects the computer, the communication module and the central air conditioning unit by using the shielded twisted pair cable, can realize the information transmission function, and monitor the operation state of each indoor unit at all times. The grouping method can not only monitor and control the indoor unit of the same unit at the same time, but also can according to the needs of the user.

1 Confirmation The internal machines are regrouped, and the same group of indoor units are controlled at the same time, including adjusting the temperature, humidity, power on, and off of the indoor environment. The unit includes a host computer and a lower position machine. The user can monitor the running status of each indoor unit at any time by using the upper computer, and use the upper computer to transmit commands to the lower position machine without the user personally reaching the environment with bad environment.

The object of the present invention is achieved as follows: a remote monitoring central air conditioning unit grouping control method, including an inbound, custom grouping control step, comprising:

Al, setting group: The computer names all the communication modules, transfers the group information to all communication modules, and the communication module acquires the running status information of each indoor unit connected thereto;

A2. Group control: The computer transmits the group number and control information of a group of indoor units to be controlled to each communication module, and each communication module sends the control information to the indoor unit connected with the group number and the group information. And responding with the indoor unit whose packet number matches the packet information, and the control is completed.

Further, in the step A2, after each indoor unit establishes communication with the computer, status information of each indoor unit is sent to the computer, and the computer controls the indoor unit according to a user instruction. .

Further, the method further includes: B, according to the unit control step, the computer sends the control information and the address identifier of the indoor unit that needs to respond to the communication module of the unit where the indoor unit is located, and the communication module sends the control information to the response that needs to be responded. After the indoor unit receives the control information, the corresponding indoor unit responds and completes the control;

Before the step A and the step B, there is further provided a selection step of selecting the control according to the step A or the step B.

Further, in the step B, after the computer establishes communication with the indoor unit that needs to respond, the operating state information of the indoor unit is transmitted to the computer, and the computer according to the user instruction The indoor unit is controlled.

A remote monitoring central air conditioning unit, a upper computer and a lower computer; the lower computer includes at least one unit, the unit includes a communication module (2), an outdoor unit (7) and a plurality of indoor units (3), The outdoor unit (7) is connected in series with the indoor unit (3), and the communication module (2) is connected to the indoor unit (3), and all the indoor units (3) can be named. The control instruction information is transmitted to all indoor units (3), and the communication module (2) acquires information such as the operating status of each indoor unit (3) connected thereto;

The upper computer is a computer (1) connected to the communication module (2) through an opto-isolated converter (5), and the computer (1) controls information and grouping of a group of indoor units (3) to be controlled. The number is transmitted to the communication module (2), and the communication module (2) sends the control information to the indoor unit (3) that is connected with the group number, and the corresponding indoor unit (3) responds. Complete control.

Further, the lower position machine includes two or more sets of units, and the computer is connected to each set of units and controls all of the indoor units in the set.

Further, the number of indoor units in the unit is more than one and less than one.

Further, the central air conditioning unit adopts an RS-485 communication mode.

The advantages of the invention are as follows: (1) The user can simultaneously control all the indoor units or some indoor units of one unit, and can also re-group all the indoor units according to the needs, and the control is more convenient; (2) The system is convenient for networking The circuit structure is simple, the network capacity is suitable, and the utility is strong; (3) The user can remotely adjust each indoor unit as needed. DRAWINGS

1 is a schematic diagram showing the connection between a host computer and a lower computer in the first embodiment;

Fig. 2 is a flow chart showing the grouping control of the air conditioner unit of the lower position machine in the present invention. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS As shown in FIG. 1 , in the embodiment of the present invention, a central air conditioning unit is remotely monitored, and an RS-485 communication method is adopted, including a host computer and a lower computer. The upper computer is a computer 1, and the computer 1 is connected to the photoelectric isolation converter 5 through the serial port 4, and the RS-485 communication signal and the RS-232 communication signal are mutually converted by the photoelectric isolation converter 5, and the photoelectric isolation The converter 5 is connected to the communication module 2 of the lower computer through the shielded twisted pair 6. In this embodiment, the central air conditioning unit of the lower position machine is a digital multi-unit air conditioning unit, the communication module 2 is connected to the indoor unit 3, and the computer 1 can name all the communication modules 2, and transmit the group information to all the communication modules 2, and the communication module. 2 It is possible to obtain operational status information of each indoor unit 3 connected thereto, such as temperature, wind speed, on/off state, and the like. The central air conditioning unit comprises at least one set of units, the unit comprising a communication module 2, an outdoor unit 7 and at least one of up to sixteen indoor units 3, said outdoor unit 7 and all indoor units 3 passing through shielded twisted pair Line 6 is connected in series for communication. The communication module 2 is connected to the outdoor unit 7 or any of the indoor units 3 through the shielded twisted pair 6. The upper computer 1 and the indoor units 3 of the lower unit communicate with each other through the communication module 2.

When using this system, the air conditioning unit of the lower position machine must be powered on.

The function of transmitting and receiving information between the upper computer and the lower computer is realized by the following means: The user selects the indoor unit 3 according to the unit division by the remote monitoring computer 1 or performs regrouping control according to the indoor unit 3. If the user chooses to centrally control the indoor unit 3 according to the unit division, the user selects the indoor unit 3 that needs to respond in the same unit, and after acquiring the address marks of the indoor units, the computer 1 transmits the control information and the address mark to the indoor unit. 3 The communication module 2 of the unit, the communication module 2 issues control information to the indoor unit 3 that needs to respond, and the indoor unit 3 that meets the address mark responds and completes the control. If the user regroups the indoor unit 3 as needed, and controls the indoor unit 3 according to the grouping situation, the computer 1 first performs a name operation on all the communication modules 2, and transmits the group information to all the communication modules 2, and the communication module 2 Obtaining operational status information of each indoor unit 3 connected thereto. The computer 1 transmits the group information of the user to the communication module 2 of all the units. After the cycle name is once, all the communication modules 2 acquire the group information of all the indoor units 3 under the communication module from the point name information. When the custom group control is performed, the user input needs to monitor the group number of the indoor unit 3, the computer 1 transmits the group number and the control information to all the communication modules 2, and the communication module 2 sends the control information to the corresponding communication module 2 according to the group number. The indoor unit 3 matching the group number responds, so that the indoor unit can be simultaneously operated by the computer 1, including power on, set temperature, wind speed, shutdown, and the like.

As shown in Figure 2, when the host computer remotely monitors the lower computer, the packet control operation flow is as follows -

51, after the unit is powered on, initialization, that is, the computer 1 obtains the address of each unit communication module 2 and the address mark of all indoor units 3 through the monitoring software database, and then proceeds to step S2;

52, the user can select the group control mode according to his own needs, if the selection is controlled by the unit, then to step S3, if the custom grouping control is selected, then step S5;

53. If the user chooses to centrally control the indoor unit 3 according to the unit division, the user selects the indoor unit 3 that needs to respond in the same unit, and after acquiring the address marks of the indoor units 3, the computer 1 transmits the control information and the address mark. To the communication module 1 of the unit where the indoor unit 3 is located, the communication module 2 issues control information to the indoor unit 3 that needs to respond to the indoor unit 3, responds to the address mark, completes the control, and then proceeds to step S4;

S4: The user confirms whether the indoor unit responds correctly, and if it responds correctly, exits the program, if the response is not correct, then returns to step S2;

S5. The computer names all the communication modules, and transmits the group information to all the communication modules. At the same time, the communication module obtains the operating status information of each indoor unit connected thereto, and then proceeds to step S6;

S6. If the user regroups the indoor unit 3 as needed, and controls the indoor unit 3 according to the grouping situation, the computer 1 first performs a name operation on all the communication modules 2, and transmits the group information to all the communication modules 2, and simultaneously communicates. The module acquires operational status information of each indoor unit 3 connected thereto. The computer 1 passes the user's group information to the communication module 2 of all the units. After the cycle name is clicked, all communication modules 2 obtain the group information of all the indoor units 3 under the communication module from the point name information. When the custom group control is performed, the user input needs to monitor the group number of the indoor unit 3, the computer 1 transmits the group number and the control information to all the communication modules 2, and the communication module 2 sends the control information to the corresponding communication module 2 according to the group number. The indoor unit 3 matching the group number responds, so that the indoor unit can be simultaneously operated by the computer 1, including power on, set temperature, wind speed, shutdown, and the like. Then to step S7;

S7: The user confirms whether the indoor unit responds correctly, and if it responds correctly, exits the program. If the response is not correct, it returns to step S2.

If a person skilled in the art makes non-substantial, obvious changes or improvements in accordance with the present invention, it should fall within the scope of the claims of the present invention.

Claims

Rights request

A remote monitoring central air conditioning unit grouping control method, comprising: A, a custom grouping control step, comprising:

The remote monitoring central air conditioning unit group control method according to claim 1, wherein in the step A2, after each indoor unit establishes communication with the computer, the indoor unit Status information is sent to the computer, and the computer controls the indoor unit according to user instructions.

3. The remote monitoring central air conditioning unit group control method according to claim 2, wherein the method further comprises: B, according to the unit control step, the computer sends the control information and the address sign of the indoor unit that needs to respond to the indoor unit. The communication module of the unit, the communication module sends the control information to the indoor unit that needs to respond, and the corresponding indoor unit responds after receiving the control information, and completes the control;

Before the step A and the step B, a selection step C for selectively controlling according to the step A or the step B is further provided.

The remote monitoring central air conditioning unit group control method according to claim 3, wherein in the step B, after the computer establishes communication with the indoor unit that needs to respond, The operating state information of the indoor unit is transmitted to the computer, and the computer controls the indoor unit according to a user instruction.

5. A remote monitoring central air conditioning unit, characterized in that: a host computer and a lower computer; the lower computer comprises at least one unit, the unit comprising a communication module (2), an outdoor unit (7) and a plurality of units The indoor unit (3), the outdoor unit (7) is connected in series with the indoor unit (3), and the communication module (2) is connected to the indoor unit (3) for communication to all indoor units ( 3) performing a name, transmitting control command information to all indoor units (3), and the communication module (2) acquires information such as the operating status of each indoor unit (3) connected thereto;

The upper computer is a computer (1) connected to the communication module (2) through an optical isolating converter (5), and the computer (1) controls information and grouping of a group of indoor units (3) to be controlled. The number is transmitted to the communication module (2), and the communication module (2) sends the control information to the indoor unit (3) that is connected with the group number, and the corresponding indoor unit (3) responds. Complete control.

6. The remote monitoring central air conditioning unit according to claim 5, wherein the lower position machine comprises two or more sets of units, and the computer (1) is connected to each set of units and controls all the units in the set. Said indoor unit (3).

7. The remote monitoring central air conditioning unit according to claim 5 or 6, wherein the number of indoor units in the unit is more than one and less than one.

The remote monitoring central air conditioning unit according to claim 5 or 6, wherein the central air conditioning unit adopts an RS-485 communication mode.