JPH05215389A - Address setter for air conditioner - Google Patents

Abstract

PURPOSE:To set an address of an indoor unit merely by connecting a signal transmission line for connecting an outdoor unit to an indoor unit without restriction of a connecting format by eliminating a necessity of an operation for setting the address. CONSTITUTION:When a priority order is the order of indoor units 10a, 20a and 30a, communication monitors 25, 35 of the units 20a, 30a output lost competition signals from the monitors 25, 35 to interrupt a communication at the time of transmitting address set start signals from first communicating means 11, 12, 13. Thereafter, the monitor 25 of the unit 20a does not output the lost competition signal at the time of transmitting address set request signals from second communicating means 22, 32 to complete transmission. Address setting means 24 receives an address set signal from the third communicating means 13 of the unit 10a and sets an own-address.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an address setting device for an air conditioner.

[0002]

2. Description of the Related Art Recently, as an address setting device for an air conditioner, an automatic address setting device that does not require an operator to set an address when installing the air conditioner has been provided.
A conventional address setting device for an air conditioner is disclosed in, for example, Japanese Patent Laid-Open No. 63-61835.

A conventional address setting device for an air conditioner will be described below. FIG. 5 is an electric circuit diagram of the address setting device of the air conditioner. In FIG. 5, 1
Is an address setting device. Reference numerals 2a, 2b and 2c are indoor units, and an SCR as a switching means which is internally cut off from a photocoupler 4 for address setting control and which is cut off after address setting.
5, the photo coupler 4 is an SCR of another indoor unit.
The indoor units 2a, 2b, 2 by connecting the photo coupler 4 and the SCR 5 with each other and applying an AC voltage to the series connection circuit of the photo coupler 4 and the SCR 5
The connection between c is configured in a non-loop shape. A signal transmission line 3 connects the address setting device 1 and the indoor units 2a, 2b, 2c.

The operation of the address setting device of the air conditioner configured as described above will be described below.

First, an address setting control signal is sent from the address setting device 1 through the signal transmission path 3 to the indoor units 2a, 2b,
2c, and the indoor unit 2c in which the address is not set and the photocoupler 4 is in the OFF state returns a response signal to the address setting control signal.

Upon receiving the response signal, the address setting device 1 supplies the address setting signal to the indoor unit 2c. The indoor unit 2c sets its own address by the address setting signal, turns off its own SCR 5, and returns an address confirmation signal to the address setting device 1 through the signal transmission line 3.

Next, when the address setting control signal is supplied again from the address setting device 1 to the signal transmission line 3, the indoor unit 2b in which the photocoupler 4 is in the OFF state among the indoor units 2b and 2c in which the address is not set. The series of operations described above is performed with the address setting device 1. This series of operations is repeated until no response signal is returned to the address setting control signal from the address setting device 1, and the addresses of all the indoor units are set.

[0008]

However, in the conventional structure, although the address setting work is not necessary at the time of installation, a connection line for address setting is required between the indoor units in addition to the signal transmission line, and the non-looping is required. Since it is necessary to make a connection in a complicated manner, the wiring work is complicated and there is a high possibility that the connection will be erroneous, and there is a drawback that an address cannot be set if the connection is apologized.

The present invention solves the conventional problems.
It is an object of the present invention to provide an address setting device for an air conditioner in which an address is set only by connecting a signal transmission line without restriction of a connection form, and an address setting operation is unnecessary.

[0010]

In order to achieve this object, an address setting device for an air conditioner according to the present invention has a communication line for connecting a plurality of indoor units and a plurality of indoor units, each having a predetermined power-on state. A first communication means for transmitting an address setting start signal containing arbitrary data to a communication line after a lapse of time and an address setting request signal containing arbitrary data when the address setting start signal is received and an address is not set Second communication means for transmitting to the line, third communication means for receiving the address setting request signal and transmitting the address setting signal to the communication line,
When the priority order of the signal transmitted from the address setting means for receiving the address setting signal and setting the self address and the first communication means, the second communication means, and the third communication means is lower than the signal of the communication line, the competition loss signal is given. A communication monitoring device for outputting, and when the first communication means, the second communication means, and the third communication means transmit signals, the transmission is interrupted by a competition loss signal of the communication monitoring device, and the communication monitoring is performed when the address setting request signal is transmitted. Only the address setting means of the indoor unit that does not output the competition loss signal from the device receives the address setting signal and sets its own address.

In addition to the above configuration, the address setting device for an air conditioner according to another aspect of the present invention stores the transmission of the address setting signal from the third communication means in the indoor unit and receives the address setting start signal to give priority. The storage means for transmitting the address setting start signal having a higher priority is configured to receive the address setting start signal and transmit the address setting start signal having the higher priority. There is.

[0012]

According to the present invention, the indoor unit having the contention loss signal output from the communication monitoring device when the address setting start signal is transmitted from the first communication means transmits the address setting request signal from the second communication means. Only when there is no contention loss signal output from the communication monitoring device, the address setting signal is received by the address setting means and the address of the indoor unit is set by simply connecting each indoor unit with a signal transmission line to set its own address. Can be set.

Further, according to another aspect of the present invention, with the above configuration, the fact that the address setting signal is output to the indoor unit from the third communication means is stored in the storage means, and the priority is high when the address setting start signal is received. Since the address setting start signal is transmitted, even when the power of another indoor unit is turned on after the address setting is completed, the address is set by the indoor unit that transmitted the address setting signal at the previous address setting.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG.
Will be described with reference to.

FIG. 1 is a block diagram of an address setting device for an air conditioner according to a first embodiment of the present invention.

In FIG. 1, 40 is a communication line, and 10
a, 20a, 30a are indoor units. 11, 21, 31
Is a first communication means provided in the indoor units 10a, 20a, 30a for transmitting an address setting start signal including arbitrary data to the communication line 40 after a lapse of a predetermined time after the power is turned on. 1
2, 22, 32 are provided in the indoor units 10a, 20a, 30a, and receive the address setting start signal, and when the address is not set, send the address setting request signal including arbitrary data to the communication line 40. It is a means.

Reference numerals 13, 23 and 33 denote indoor units 10a and 20.
The third communication means is provided in a and 30a and receives the address setting request signal and transmits the address setting signal to the communication line 40. 14, 24, 34 are indoor units 10a, 20a, 30
The address setting means is provided in a and receives the address setting signal and sets the self address. Reference numerals 15, 25 and 35 denote signals transmitted from the first communication means 11, 21, 31 and the second communication means 12, 22, 32 and the third communication means 13, 23, 33 which are provided in the indoor units 10a, 20a and 30a. The communication monitoring device outputs a competition loss signal when the priority is lower than the signal of the communication line 40.

The first communication means 11, 21, 31, the second communication means 12, 22, 32, the third communication means 13, 2
3, 33, when transmitting a signal, the communication monitoring device 15, 25,
The indoor unit 10a, 20a, 3 which has stopped the transmission due to the competition loss signal of 35 and has not output the competition loss signal from the communication monitoring devices 15, 25, 35 at the time of transmitting the address setting request signal.
Only the address setting means 14, 24, 34 of 0a receives the address setting signal and sets its own address.

The operation of the air conditioner address setting device configured as described above will be described below with reference to the flow chart of FIG.

After a lapse of a predetermined time from the power supply to the indoor units 10a, 20a, 30a, the respective first communication means 11, 2
1, 31 start transmitting an address setting start signal including arbitrary data (step 1).

Next, the communication monitoring devices 15, 25, 35 are
Each compares the address setting start signal transmitted by itself and the signal of the communication line 40 (step 2), and outputs the competition loss signal when the priority order of the own address setting start signal is low (step 3 to Yes side). After branching, step 7).

In this embodiment, for example, the address setting start signal transmitted from the indoor unit 10a has the highest priority.
The communication monitoring devices 25, 35 of the indoor units 20a, 30a output the competition loss signal to the respective first communication means 21, 31 (after branching Step 3 to the Yes side, Step 7).

The first communication means 21, 31 interrupt the transmission due to the respective competition loss signals (step 8), and complete the transmission of the address setting start signal only for the indoor unit 10a (after branching step 3 to the No side, Step 4). Indoor unit 10
The second communication means 22 and 32 of the indoor units 20a and 30a respectively receive the address setting start signal of "a" (step 9), and start transmitting the address setting request signal (step 10).

Next, the communication monitoring devices 25 and 35 compare the address setting request signal transmitted by each of them with the signal of the communication line 40 (step 11), and when the priority order of the own address setting request signal is low. Outputs a competition loss signal (after branching Step 12 to the Yes side, Step 1
6).

In this embodiment, for example, the address setting request signal transmitted from the indoor unit 20a has the highest priority.
The communication monitoring device 35 of the indoor unit 30a outputs the competition loss signal to the second communication means 31 (after branching Step 12 to the Yes side, Step 16). The second communication means 31 interrupts the transmission due to the competition loss signal (step 17), and the indoor unit 2
Only 0a completes the transmission of the address setting request signal (after branching Step 12 to the No side, Step 13).

The third communication means 13 of the indoor unit 10a receives the address setting request signal of the indoor unit 20a (step 5) and transmits the address setting signal (step 6). This address setting signal is received by the address setting means 24 of the indoor unit 20a which has completed the transmission of the address setting request signal (step 14) and sets its own address (step 1).
5).

Next, the second communication means 32 of the indoor unit 30a, which has interrupted the transmission of the address setting request signal, starts (step 17 to step 10) and performs the series of operations described above.

This series of operations can be repeated until each indoor unit stops transmitting the address setting request signal, and the addresses of all the indoor units can be set.

The second embodiment of the present invention will be described below with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

FIG. 3 is a block diagram of an address setting device for an air conditioner according to the second embodiment of the present invention.

In FIG. 3, reference numeral 40 is a communication line. 10
Reference numerals b, 20b and 30b are indoor units, and inside thereof are first communication means 11, 21, 31 and second communication means 12, 2 respectively.
2, 32, third communication means 13, 23, 33, address setting means 14, 24, 34, and communication monitoring devices 15, 2
5, 35 and the storage means 16 for storing that the address setting signal is transmitted from the third communication means 13, 23, 33, and for transmitting the address setting start signal having a higher priority when the address setting start signal is received. , 26, 36.

The operation of the air conditioner address setting device configured as described above will be described below with reference to the flowchart of FIG.

Address setting operation when the indoor units 10b, 20b and 30b are simultaneously turned on (step 22)
Since the operation from Step 18 to the end when the step A is not branched to Yes is the same as the operation of the first embodiment (the operation from Step 1 to the end), the description thereof will be omitted.

When the indoor units 10b and 20b are turned on at the same time and then the indoor unit 30b is turned on, the indoor unit 10
After a lapse of a predetermined time after the power supply to b and 20b is turned on, the respective first communication means 11 and 21 start transmitting an address setting start signal including arbitrary data (step 18).

Next, the communication monitoring devices 15 and 25 compare the address setting start signal transmitted by each of them with the signal of the communication line 40 (step 19), and when the priority order of the own address setting start signal is low. Outputs a competitive loss signal (after branching Step 20 to the Yes side, Step 2
6).

In this embodiment, for example, the address setting start signal transmitted from the indoor unit 10b has the highest priority.
An address setting operation (operation from Step 18 to the end when Step 22 is not branched to the Yes side) is performed, and the storage unit 16 of the indoor unit 10b stores that the address setting signal is transmitted from the third communication unit 13 ( Step two
5).

Then, after a lapse of a predetermined time from the power supply to the indoor unit 30b, the first communication means 31 starts transmitting an address setting start signal including arbitrary data. The storage means 16 and 26 receive the address setting start signal, and the storage means 16 having the memory for transmitting the address setting signal transmits the address setting signal having the higher priority (after branching Step 22 to the Yes side, Step 18). ..

After that, the indoor unit 10b completes the transmission of the address setting start signal (after branching Step 20 to the No side,
Step 21), the indoor unit 30b outputs a competitive loss signal (after branching Step 20 to the Yes side, Step 2
6). Hereinafter, from step 23, 24 and step 27 to the end, the address setting operation of the first embodiment (step 5
To the end). All indoor units 30
Set the address of b.

[0039]

As described above, according to the present invention, a communication line connecting a plurality of indoor units and an address setting start signal including arbitrary data after a lapse of a predetermined time from power-on are supplied to the plurality of indoor units. First communication means for transmitting to the communication line, and second communication means for receiving the address setting start signal and transmitting an address setting request signal including arbitrary data to the communication line when an address is not set, Third communication means for receiving the address setting request signal and transmitting the address setting signal to the communication line, address setting means for receiving the address setting signal and setting a self address, the first communication means, the second Communication means and a communication monitoring device that outputs a competition loss signal when the priority of the signal transmitted from the third communication means is lower than the signal of the communication line, the first communication means, the communication monitoring device 2 When the communication means and the third communication means transmit a signal, the transmission is interrupted by the competition loss signal of the communication monitoring apparatus, and the communication loss apparatus outputs the competition loss signal when transmitting the address setting request signal. Only the address setting means of the indoor unit, which does not exist, receives the address setting signal and sets its own address.

As a result, the work for setting the addresses is unnecessary, and the addresses of all the indoor units can be set only by connecting the outdoor unit and each indoor unit without restriction of the connection form.

Further, another aspect of the present invention is to further provide an indoor unit,
The indoor unit that stores the transmission of the address setting signal from the third communication unit, receives the address setting start signal, and transmits the address setting start signal of higher priority, and transmits the address setting signal. The storage means is configured to receive the address setting start signal and transmit the address setting start signal with high priority, thereby setting the addresses of all indoor units regardless of the power-on timing of the indoor units. can do.

[Brief description of drawings]

FIG. 1 is a block diagram of an address setting device for an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the address setting device of the air conditioner in the first embodiment of the present invention.

FIG. 3 is a block diagram of an address setting device for an air conditioner according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the address setting device of the air conditioner in the second embodiment of the present invention.

FIG. 5 is an electric circuit diagram of a conventional air conditioner address setting device.

[Explanation of symbols]

10a, 10b, 20a, 20b, 30a, 30b Indoor unit 11, 21, 31 First communication means 12, 22, 32 Second communication means 13, 23, 33 Third communication means 14, 24, 34 Address setting means 15, 25, 35 communication monitoring device 16, 26, 36 storage means 40 communication line

Claims (2)

[Claims] 1. A communication line for connecting a plurality of indoor units, and a first communication for transmitting an address setting start signal containing arbitrary data to the plurality of indoor units after a predetermined time has elapsed from power-on. Means, second communication means for receiving the address setting start signal and transmitting an address setting request signal containing arbitrary data to the communication line when the address is not set, and address receiving the address setting request signal From third communication means for transmitting a setting signal to the communication line, address setting means for receiving the address setting signal and setting a self-address, the first communication means, the second communication means, and the third communication means A communication monitoring device that outputs a competition loss signal when the priority of the signal to be transmitted is lower than the signal of the communication line, the first communication means, the second communication means, and the third communication When the means transmits a signal, the transmission is interrupted by the competition loss signal of the communication monitoring device, and the address setting of the indoor unit that does not output the competition loss signal from the communication monitoring device when transmitting the address setting request signal An address setting device for an air conditioner, wherein only the means is configured to receive the address setting signal and set a self address. 2. The indoor unit is provided with storage means for storing the transmission of the address setting signal from the third communication means, and for receiving the address setting start signal and transmitting the address setting start signal of higher priority, wherein the address setting signal is provided. 2. The address of the air conditioner according to claim 1, wherein the storage unit of the indoor unit that has transmitted the address is configured to receive the address setting start signal and transmit the address setting start signal having a high priority. Setting device.