KR970002001B1 - Method for establishing address of airconditioner - Google Patents

Abstract

None.

Description

How to set the address of air conditioner

1 is a flow chart showing the main operation of address setting of a microprocessor for controlling a use unit using the present invention.

2 is a flowchart showing the main operation relating to address setting of a microprocessor for controlling the heat source side unit using the present invention.

3 is a schematic diagram showing an air conditioner connection relationship of the present invention.

4 is a time chart showing an address setting process of a heat source side unit and a use side unit using the present invention.

* Explanation of symbols for main parts of the drawings

1: heat source side unit 2: use side unit

3: User side unit 4: User side unit

5: User Unit 6: Remote Controller

7: Remote Controller 8: Remote Controller

9: remote controller 10: signal line

11: signal line 12: signal line

13 signal line 14 signal line

15: signal line

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automatic setting of an address of a use side unit which is used when receiving a control signal between heat source side units in an air conditioner in which a plurality of use side units are connected to one heat source side unit.

As a conventional method for automatically setting an address in such an air conditioner, there is one described in Japanese Patent Laid-Open No. 60-165452.

In this publication, the address of each unit is set by address setting means such as a switch.

In the case of setting the address as an address setting means such as switching in this way, this address setting must be set at the time of installation of the air conditioner, and in case of forgetting this setting or in violation of the setting (duplicate address setting), Trouble occurred at the start of the conditioner.

In response to such a problem, the address setting method of the present invention eliminates troubles caused by artificial address setting by automatically setting an address when the air conditioner is installed.

The air conditioner address setting method of the present invention is an air conditioner in which one heat source side unit and a plurality of use side units are connected so as to receive signals through mutual signal lines, and a unique address is assigned to each use side unit. In the address setting method to be set, when setting an address to each use side unit, each use side unit outputs a signal of request for setting an address to the heat source side unit after a randomly determined delay time, and the heat source The side unit outputs an address setting signal using the unused address as a transmission address in accordance with the setting request signal of this address, and the using side unit outputting the setting request signal of the address starts from the time of outputting the setting request signal of the address. When the address setting signal is received within a predetermined time, the received address The transmission address of the setting signal is set as the address of the using unit, and an acknowledgment signal is set as the transmission source using the address set in the using unit, and the heat source side unit uses the transmitting source address when receiving the confirmation signal. This registers as the completed address, and when the setting of most of the addresses set by the switch for setting the number of the use-side units is finished, the address setting end signal is output to all the use-side units.

The use side unit relates to a method of setting an address of an air conditioner that outputs a signal again after a randomly determined delay time when the output signal is duplicated by another unit.

In addition, the heat source side unit is provided with a switch for setting the number of the use side units connected to this heat source side unit, and when the number of addresses set in this switch is completed, the heat source side unit finishes address setting in all the use side units. To output a signal.

In the address automatic setting method of the air conditioner configured as described above, the address setting of the use side unit is automatically performed as power is supplied after setting the heat source side unit and the use side unit.

EXAMPLE

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described based on drawing.

3 is an electric wiring diagram showing a state in which the heat source side unit and the utilization side unit of the air conditioner of the present invention are connected by signal lines.

In this figure, 1 is a heat source side unit, 2-5 is a use side unit, and this use side unit 2-5 is installed in the same room or another room.

6 to 9 are remote controllers connected to the use side units 2 to 5 by signal lines 12 to 15, respectively.

The signal line is used as a unit on the use side, and is composed of two power lines for supplying DC power to the remote controller and one signal line for receiving signals between the unit and the remote controller.

Therefore, the signals from the respective remote controllers 6 to 9 control the operation of the use-side unit to which the remote controller is connected, the setting of the cooling / heating mode or the temperature set value, the ON / OFF of the operation, and the like.

10 and 11 are connected to the heat source side unit 1 and the use side units 2 to 5 as signal lines so that signals can be transmitted and received to each other.

Therefore, all units can receive the signal output from either unit.

1 is a flowchart showing the address setting operation of the using side unit (any using side unit).

This flowchart shows the main operation of the microprocessor in charge of the operation of the user-side unit.

First, in step S1, the supply of power is started and power-on reset is performed to the microprocessor.

Subsequently, in step S2, the microprocessor is initialized, that is, the initial settings of each constant are performed.

For example, the operation of the air conditioner is stopped, the cooling operation mode, and the clock is 12:00.

Next, in step S3, it is determined whether the heat source side unit is started.

That is, it is determined whether or not the initialization of the microprocessor which controls the heat source side unit is in the operating state.

This determination can be made based on whether or not there is an answer to the signal output from the use side unit.

Next, the delay time T is set in step S4.

This delay time is the sum of the time based on the value first obtained from the A / D (analog / digital) conversion for temperature detection and the basic time.

Therefore, different delay times are set according to the conditions for each use side unit.

In step S5, it waits until this time T passes.

In other words, the timer elapses and the time elapses.

When the delay time T has elapsed, the process proceeds to step S6 and step S7 to output the address setting signal to the signal lines 10 and 11.

The address setting signal is, for example, destination address DA = 10 (fixed unique address of the column source side unit to 10), source address SA = 1B (1B indicates undetermined address), and command C = 56 ( Command for indicating address setting control).

Further, the data D is data indicating the state of the current air conditioner (heat exchanger capacity, operating state, heat exchanger temperature or room temperature detected by A / D conversion).

In accordance with the transmission of this signal, the collision of the signal is determined in step S8.

In other words, it is determined whether or not the other using side unit or the heat source side unit is simultaneously transmitting a signal.

When a signal collides, there is a problem that the transmission signal changes.

This signal collision is performed by receiving a signal from the signal lines 10 and 11 at the same time as outputting the signal, and determining whether the received signal matches the output signal.

If the signal collides, the process returns to step S4 and the signal is retransmitted by following the above steps again after a predetermined delay time.

This operation is executed until the end of transmission of the signal is determined in step S9.

Next, when the transmission of the signal is completed, it is judged whether or not a signal is received between the predetermined time S in steps S10 and S11. When no signal is received, the process returns to the step S4 and performs the above steps again.

In addition, the predetermined time S is started by the timer of step S11.

Upon receiving the signal, the flow advances to step S12 to determine whether SA = 10 and C = 64 are satisfied with the received signal.

When the condition of step S12 is satisfied, the DA value of the signal received in step S13 is stored in the storage location ADD as the unique address.

Subsequently, DA = 10, SA = ADD, and C = 56 are set in step S22.

This signal is output from step S15 to step S19.

Since the output order of the signals is the same as that described above, explanation is omitted.

In step S20, it is determined whether or not the unique address set in this way overlaps with another user side unit.

This determination is judged by whether or not the signal transmitted from the other user side unit coincides with the unique address stored in the storage location ADD.

If the addresses match, it is determined that the use side units are duplicated, and in step S21, the value is cleared, and the address setting is again requested to the heat source side unit.

When a signal indicating the end of address setting output from the heat source side unit is input, the flow advances to step S22 to finish the address setting and start normal operation.

2 is a flowchart showing the main operation relating to the microprocessor address setting for controlling the operation of the heat source side unit.

In this flowchart, power supply is started in step S31, and power-on reset is performed to the microprocessor.

Subsequently, in step S32, the microprocessor is initialized, that is, the initial setting of each constant is performed.

For example, the compressor OFF, the fan motor OFF and the four-way valve are initially set in the cooling state OFF.

In this initialization, the setting value of the switch which sets the number of connections of the use unit at the same time is input.

When address setting of the use-side unit is performed by the number set by this switch, the address setting end is determined.

In step S3, it is determined whether or not the heat source side unit is activated.

In other words, it is determined whether or not the initialization of the microprocessor that performs the control of the user side unit is in the operating state.

In this judgment, it is determined by whether or not the number of responses to the signal output from the user side unit has reached the set value of the switch input at the time of initialization.

In step S33, when it is confirmed that the user side unit is started, the process proceeds to step S34.

In this step, it is determined whether the heat source side unit has received a signal, and when it receives a signal, the flow proceeds to step S35.

In step S35, it is determined whether the command C of the received signal is 56, and when C = 56 is satisfied, the address setting operation is started.

When SA = 1B and DA = 10 of the signal received in step S36 are satisfied, steps S37 to S39 are performed.

In step S37, an address given to the use side unit is selected and stored in the ADD.

This address selection sequentially gives the smaller numbers among the addresses not yet used.

For example, it is an address from 00, 01, 02, 03 to the set value by a switch.

In step S38 and step S39, the values of DA, SA and C are set and the signal is output to the signal lines 10 and 11.

Next, when SA = ADD and DA = 10 of the signal received in step S40 are satisfied, i.e., the destination address of the signal transmitted and set in steps S37 to S39 first matches the source address of the signal currently received. In step S41, the source address SA of this signal is registered in the storage unit as the registered address.

In step S42, it is judged whether or not such an address setting operation has ended by the number of the use-side units set by the switch. When the address setting by the set number is completed, the process proceeds to step S43.

In step S43, a signal indicating the end of address setting is output to all the use side units, and then the routine operation is shifted.

4 is a time chart when the address automatic setting of the user side unit is performed using the flowcharts shown in FIG. 1 and FIG.

In this time chart, the heat source side unit AD is fixed, and since the use side unit address is arbitrarily assigned 00 to 03, it is determined by which use side unit the units of addresses AD = 00 to 03 correspond to the address. It is unclear at the time of setting.

In addition, the method of knowing the assigned address can be known from the display of the remote controller.

First, when the operation of the heat source side unit and the use side unit is confirmed, each use side unit outputs a signal indicating address setting to the signal line during a randomly determined delay time.

In the time chart of FIG. 4, the delay times T0 to T3 are determined such that the relationship of T0T1T2T3 is established.

When the delay time T0 has elapsed, the use side unit outputs an address setting request signal of 101B56 to the signal lines 10 (11).

At this time, since the heat source side unit is in a signal reception possible state, it receives a signal output to the signal lines 10 and 11.

According to the received signal, the heat source side unit selects an address.

At this time, since it is not yet set to the address of any use side unit, 0, which is the smallest value, is selected as the setting address.

If an address is selected, the column source side unit outputs to the signal lines 10 and 11 an address setting signal which uses this selection address as the destination address.

The utilization unit which outputs the signal 101B56 is in a signal reception standby state for a predetermined time S after the output of this signal.

When the receiving unit receives a signal output from the heat source unit on the signal line during this standby state, it registers the destination address of the received signal as a unique address of its unit, and sets this address as the source address. Output to the signal line.

As the heat source side unit receives the signal whose source address is the address set as the destination address through the signal line, confirms that the selected address is set as the address of the user unit, and prepares for signal reception in preparation for the next address setting. Go to standby.

In addition, the addressing user unit determines whether or not duplication of addresses occurs until a signal indicating completion of address setting is received.

If address duplication occurs, the address is set to the heat source side unit again by clearing its own address.

When this address overlaps, for example, the heat source side unit cannot receive a signal output from the utilization side unit and performs a double instruction of the address.

Next, after the delay time T2, another using side unit outputs the address setting request signal 101B56 to the signal lines 10 and 11, and the same address setting is performed as described above.

At this time, since the use side unit 0 is already registered in the heat source side unit, the next address 1 is given to the address of the use side unit which outputs this signal.

In the following manner, the address of the user unit is set to 2 3 and the address setting of all the user unit ends (the number of the user unit set in the switch and the number of the user unit that registered the address match the address setting). When the determination is made to terminate, a signal indicating the end of address setting is output to the signal lines 10 and 11, and the routine operation is shifted.

In addition, the delay times T0 to T3 are set so that the interval (about 200 mm seconds) at which the series of address setting processes can be terminated is maintained.

In the case of using the air conditioner configured as described above, when the heat source side unit and the use unit are started, after the delay time set as random, an address setting signal is output from the respective use side unit to the heat source side unit, and the address is received from the heat source side unit. Since the selection setting is performed, the address setting is automatically performed in the order of the shortest delay time.

Therefore, the address of each use-side unit can be set automatically by connecting signal lines and supplying power to each unit without individually setting the address for the use-side unit.

As a result, there is no duplicate setting of the artificial address, which can shorten the installation time of the air conditioner and prevent abnormal operation of the air conditioner.

Claims (2)

An air conditioner in which one heat source side unit 1 and a plurality of use side units 2, 3, 4, and 5 are connected to receive signals through mutual signal lines 10 and 11, respectively. In the address setting method of setting a unique address in each use side unit (2) (3) (4) (5), an address is set in each use side unit (2) (3) (4) (5). In setting the, each using side unit (2) (3) (4) (5) outputs a signal of an address setting request to the heat source side unit (1) after a randomly determined delay time, and the heat source The side unit 1 outputs an address setting signal using the unused address as a transmission line address in accordance with the setting request signal of this address, and the using side unit (2) (3) (4) which outputs the setting request signal of the address. (5) is received when the address setting signal is received within a predetermined time from the time point at which the address setting request signal is output. The transmission line address of the address setting signal is set as the address of this use side unit (2) (3) (4) (5) and simultaneously set in the use side unit (2) (3) (4) (5). The acknowledgment signal having one address as a transmission source is output, and when the acknowledgment signal is received, the heat source side unit 1 registers the transmission source address as the used address, and is set by a switch for setting the number of the use side units. An address setting method of an air conditioner, characterized by outputting a signal of completion of address setting to all the use side units (2) (3) (4) (5) when setting of most addresses is completed. The method according to claim 1, wherein (2) (3) (4) (5) is a case in which the output signal overlaps with the (1) (2) (3) (4) (5) signal outputted by another unit. And outputting a signal again after a randomly determined delay time.