JPH0510575A - Controller for group of air conditoners - Google Patents

Abstract

PURPOSE:To permit the trial operation of respective control instruments without necessitating any exclusive switch in a group controller for air conditioners. CONSTITUTION:The title controller is provided with an address setting switch 33, specifying an address, a memory 32, storing address information, and a writing permitting switch 31, writing the address information. Further, the title controller is provided with transmission and receiving circuits 35, 36 and a processing circuit 34, stopping transmission through the transmission circuit 35 when the address information, transmitted and received by the transmission and receiving circuits 35, 36, are not coinciding to each other and when the transmission of the address information is finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a group control device for multipurpose use of a self address setting switch for controlling a plurality of indoor units such as an air conditioner in a group.

[0002]

2. Description of the Related Art Conventionally, as an address setting method configured to individually address and control a plurality of indoor units, for example, there is one shown in FIG. FIG. 3 is a block diagram showing an example of a conventional system disclosed in, for example, Japanese Patent Application Laid-Open No. 1-123145, in which 1 is a line including a power supply line and a signal line, 3, 4, and 5 are indoor units,
Memories 32, 42, and 52 are provided in the respective indoor units. Reference numeral 6 is an outdoor unit, 2 is an input operation means for individually controlling the indoor units 3, 4, and 5.

Next, the operation will be described. A plurality of indoor units 3, 4 and 5 are commonly connected in parallel to an outdoor unit 6 and a line 1 including a power supply line and a signal line. The indoor units 3, 4, and 5 each have a function of individually setting an address in each indoor unit, and the address information once set is stored in the memories 32, 42, and 52. The operation from the input operation means 2 is once received by the indoor unit 3 and the address information and the operation information stored in the memory 32 are transmitted by the transmission circuit via the line 1 to the other indoor units 4, 5 and the outdoor unit. It was transmitted to Aircraft 6. On the contrary, the information from other units is received by the receiving circuit via the line 1, and each indoor unit 3,
4, 5 were operated individually. In addition, each indoor unit 3,
When special operations such as test operation, test operation, and inspection of the unit are performed on the units 4 and 5, the switches provided for each function in the indoor units 3, 4 and 5 are used.

[0004]

As described above, the conventional self-address setting switch of each indoor unit provided for group control of a plurality of devices is used only for determining an address for group control. However, there was a problem that a dedicated switch was required for trial operation of each control device and acquisition of maintenance information.

The present invention has been made in order to solve the above problems, and an object thereof is to make it possible to perform a trial run of each control device without requiring a special switch.

[0006]

A group control device for an air conditioner according to the present invention stores a memory for storing address information designated corresponding to each indoor unit, and the memory. A transmission circuit that transmits address information, a reception circuit that receives an output from an indoor unit, an outdoor unit, or an input operation unit other than itself, an address information that is transmitted by the transmission circuit, and an address information that is received by the reception circuit. A processing circuit for stopping the transmission by the transmission circuit is provided when they do not match and after the address information is completely transmitted.

[0007]

In the present invention, each indoor unit is provided with a memory for storing the address information designated corresponding to each indoor unit. When setting the address, the address information set by the address setting switch (for example, a DIP switch) is stored in the memory by operating the write permission switch. This address information is transmitted from the transmission circuit and is received and processed by the reception circuit of each indoor unit.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, the same reference numerals as those in FIG.
Reference numerals 4 and 5 denote indoor units, and each indoor unit is connected in parallel to an outdoor unit 6 including a processing circuit therein and a line 1 including a power supply line and a signal line. The indoor units 3, 4, and 5 have memories 32 and 42 for storing address information, respectively.
52 (for example, EEPROM). Each of the indoor units 3, 4, 5 is provided with a setting switch (for example, a DIP switch) 33, 43, 53 for setting an address, and switches 31, 41 for permitting the write operation of the address information in the memories 32, 42, 52. , 51. Further, the input means 2 for individually operating each indoor unit is connected to the indoor unit R.

FIG. 2 is a block diagram relating to the information transmission of the indoor unit 3. The indoor unit 3 is realized by including a microcomputer and the like, and is provided with a processing circuit 34. From the processing circuit 34, a signal is sent from the transmission circuit 35 at the time of transmission, and a signal is received from the reception circuit 36 at the time of reception and processed.

Next, the operation will be described. Address information for group control of a plurality of indoor units includes address setting switches (eg, DIP switches) 33, 43, 5
It is set by 3. In order to store this value in the memory as valid information (as an address for system control), the memory write permission switches 31, 41, 51 are operated to write the information in the memory. Each of the indoor units 3, 4 and 5 converts the above address information into a digital signal and serially outputs it to the line 1 bit by bit, and outputs it to the outdoor unit 6 or the input operation means 2 together with the current operation information and the like. On the contrary, the operation information from the outdoor unit 6 or the input operation means 2 is processed by the receiving circuit 36 and the processing circuit 34 through the line 1. Further, the signal output from the transmission circuit 35 is transmitted by the processing circuit 34 when the signal sent to the receiving circuit 36 and sent to the line 1 changes at the same time due to noise on the line, or when the transmission processing is normally completed. To stop. The address information is stored in the indoor unit memory 3
Once written in 2, 42 and 52, the processing circuit 34 can control as described above. Therefore, it becomes possible to change the set values of the address setting switches 33, 43 and 53 and use them instead of the conventional operation switches for each function.

[0011]

As described above, according to the present invention, a setting switch for individually specifying an address for each indoor unit, each memory for storing the specified address information, and this memory A switch that allows writing operation of specified address information, a transmission circuit that transmits the address information stored in each of the above memories, and receives outputs from indoor units, outdoor units, and operation input devices other than itself. When the address information sent by the receiving circuit does not match the address information sent by the sending circuit, and when the address information received by the receiving circuit does not match, and after the address information has been sent, the processing circuit stops sending by the sending circuit. Therefore, conventionally, an operation switch was required for each function, but it is possible to upgrade the function without adding parts. Those having the effect of preventing a decrease in sex.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing a main part of the present invention.

FIG. 3 is a block diagram for controlling a conventional air conditioner.

[Explanation of symbols]

 1 power supply line and signal line 2 input operation means 3 indoor unit 31 write operation switch 32 memory 33 address setting switch 34 processing circuit 35 transmission circuit 36 reception circuit

Claims (1)

Claims: 1. An outdoor unit is commonly connected to a plurality of indoor units,
In a group control device for an air conditioner that individually controls the addresses of these indoor units by group control, a setting switch for individually specifying the address for each indoor unit and the designated address information A memory to store, a switch for permitting the operation of writing address information specified in the memory, a transmission circuit for transmitting the address information stored in the memory, an indoor unit other than oneself, an outdoor unit, an operation input When the receiving circuit that receives the output from the device and the address information sent by the sending circuit do not match the address information received by the receiving circuit, and when the address information has been sent, the sending circuit stops sending. Equipped with a processing circuit for setting the address setting switch once and writing the address information to the memory. After, the group control unit of the air conditioner, characterized by used for purposes other than the address setting switch for address setting.