JP3108154B2 - Command controller for distributed air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a command control device in a distributed air conditioner.

[0002]

2. Description of the Related Art As this type of apparatus, as shown in FIG.
A plurality of indoor units 201, 202,
203... 20n are connected so as to perform a linked operation, and a command for a distributed arrangement type air conditioner having a configuration for performing air conditioning such as cooling and heating in each indoor unit based on a control command for controlling the operation of each indoor unit and the outdoor unit. There is a control unit.

In such a configuration, each indoor unit 201
· 202 · 203 ··· 20n includes microcomputers 201B and 202 (referred to as CPU in the present invention).
B · 203B... 20 nB are provided, and operation units 201A, 202A, and 203A provided for each indoor unit are provided.
... Required operation conditions such as operation start, set temperature, and operation time designated by 20 nA are set as setting information A as C.
PU 201B / 202B / 203B... 20nB.

A measuring unit (not shown) is provided in each indoor unit.
Is provided, and measurement information B obtained by performing required measurement by using a temperature sensor, a clock, or the like is provided to each CPU 201B / 2.
02B / 203B ... 20nB.

[0005] Each of the CPUs 201B, 202B, 203B ...
.. 20nB transmits each individual control command obtained by processing information of each setting information A and each measurement information B to each of the indoor units 201 and 2.
02 · 203... The air conditioner (not shown) on the 20n side performs required operation control, and the CPU 101 provided in the outdoor unit 100 also receives required control commands to provide the outdoor unit 1
The air conditioner (not shown) on the 00 side performs a required operation, and the air conditioner (not shown) passes through each indoor unit 201/20.
2.203: Control is performed so that the air conditioning mechanism on the 20n side performs required air conditioning.

Each of the CPUs 201B, 202B, 203B ...
... The control command for the 20 nB outdoor unit 100 is CP
At predetermined time intervals, the contents of each individual control command are sequentially read from the U101 side and stored in the CPU 101, and are compared with the contents of each individual control command obtained last time to perform new control different from the last time. The command is detected, and based on the new control command, the air-conditioning mechanism on the outdoor unit 100 side is controlled to perform a required air-conditioning operation on the target indoor unit.

For this reason, in order to make the control commands of the CPU in each of the indoor units and the control commands of the CPU in the outdoor unit correspond to each of the indoor units, each of the indoor units is given an individual identification code. To give a control command.

[0008]

The setting of each individual identification code is performed by the outdoor unit 100 and each of the indoor units 201, 202,.
By operating the setting unit 111 and 211, 212, 213, 21n using a plurality of digits switches provided on each of the units 203 ... 20n, for example, a different unit number for each indoor unit is set as an identification code. Make up.

However, in such a configuration, since each indoor unit is generally mounted on a ceiling or the like, it is difficult to perform the operation of setting the identification code, it takes time to perform the setting operation, and furthermore, it is difficult to set the identification code with the identification code set on the outdoor unit side. In addition to being troublesome in the collation operation, there is a problem that the erroneous collation causes each indoor unit to perform an air-conditioning operation according to a control command from another indoor unit, causing unexpected inconvenience to the user. For this reason, there is a problem that it is desired to provide a simple configuration having no such inconvenience.

[0010]

According to the present invention, a plurality of indoor units are connected to one outdoor unit as described above, and a control command for controlling each indoor unit and the outdoor unit is provided. Based on the above, in the command control device for a distributed arrangement type air conditioner which performs air conditioning such as cooling and heating in each indoor unit, each CPU provided in each indoor unit newly newly has a temporary identification code when power is initially turned on. That is, a provisional code selection unit for selecting a provisional code, a CPU provided in the outdoor unit compares each provisional code, and detects a duplicate provisional code, that is, a duplication detection unit for detecting a duplicate provisional code. A selection change command means for giving a selection change command for causing the CPU of the indoor unit corresponding to the above-mentioned duplicate provisional code to select a new provisional code different from the current provisional code; If not, the CPU of the outdoor unit Each temporary code is processed to generate each predetermined code, and each predetermined code is stored in the CPU of the outdoor unit as an individual determination identification code corresponding to each indoor unit. Identification code storage command means for giving a storage command for storing each of the above decision identification codes to the CPU of the indoor unit, and identifying each indoor unit by a control command with the above individual decision identification code. The above object can be solved by providing an identification control means for performing the above control.

[0011]

The temporary code selected by each indoor unit is compared by the outdoor unit, and after the change is instructed and the duplication is removed, the temporary code is changed to a proper identification code and stored in common with the outdoor unit and each indoor unit. The pre-processing is performed so that the mutual command required for the air conditioning control is given to the identification code.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the drawings. In FIG. 1, the same reference numerals as those in FIG. 5 indicate portions having the functions described with reference to FIG. The configuration of FIG. 1 is different from the configuration of the prior art of FIG. 5 in that, first, a setting unit 111 and 211, 212, 213, and 21n are provided by switches of a plurality of digits for setting an identification code. Second, the CPUs 101 and 201
B, 202B, 203B... 20nB include a process in place of the above-described setting of the identification code.

In FIG. 1, a CP provided in an outdoor unit 100 is shown.
U101 and each indoor unit 201/202/203 ... 20
CPUs 201B, 202B, 203B provided in n.
20 nB is configured to also perform the processing operation according to the flowchart of FIG. In FIG. 2, the flow on the left side corresponds to each CPU 201B / 202B / 20 on each indoor unit side.
3B... In the processing flow at 20 nB, the flow in the right part is the processing flow in the CPU 101 on the outdoor unit side, and the flow in the center part is each CPU 2 in each indoor unit side.
.. 20B and the CPU 101 of the outdoor unit process in common.

The outdoor unit 100 and each of the indoor units 201, 202,
203. When the power is initially turned on to 20n, each CPU
201B / 202B / 203B ... 20nB and CPU1
01 and the processing flow are reset to the initial stage, however, at this time, the memory contents contributing to the setting of the identification code are erased, and FIG.
Enters the state of "CPU reset" of step 1 in the flowchart of FIG.

In the "provisional code generation" of step 2, each of the CPUs 201B, 202B, 203B,.
For example, by operating a random number generation subroutine, a signal to be used as each temporary identification code is individually
It is generated as a tentative code (hereinafter, referred to as a random number code) based on a 12-bit random number.

In the "temporary code selection" of step 3, an appropriate temporary code, for example, a selected random number code is selected as a temporary code.

In step 4 "output temporary code", a signal of the selected temporary code is output as a temporary code signal to an input / output port (not shown) of each CPU. Here, each CPU 2
.. AA output from 01B, 202B, 203B... 20nB are all temporarily represented by different temporary codes, for example, different random numbers, but have the same temporary code. In some cases, the ones shown may be included.

In the step 5, "Temporary code acquisition", C
The PU 101 sets each provisional code signal AA1, AA2, AA3...
AAn is taken in a memory in the CPU 101 in an appropriate order and stored.

In step 6 "overlap judgment (whether there is the same provisional code?)", The comparison processing subroutine provided in the CPU 101 is operated, and the provisional code signals AA1, AA2, AA3,. Are sequentially compared to determine whether or not there is one having the same code content, that is, whether there is any duplicated provisional code. In step 6, when it is determined that there is no overlap, for example, when it is determined that there is no identical random number, the process proceeds to the next step 7, and when it is determined that there is an overlap, another step 1 is performed.
Move to 3.

In the "predetermined order arrangement" of step 7, C
The order rearrangement subroutine provided in the PU 101 is operated to arrange the contents of the provisional codes of the provisional code signals AA1, AA2, AA3... The signals rearranged in the above are regarded as predetermined order signals, and the respective provisional code signals AA1, AA2, AA
3. The storage order of AAn is exchanged and stored in the memory of the CPU 101.

In "identification code determination" of step 8,
By operating the identification code determination subroutine provided in the CPU 101, the predetermined identification signals BB1, BB2, BB3,..., BBn are determined by assigning predetermined codes to the predetermined order signals stored in the memory of the CPU 101 in accordance with the order. And each decision identification code BB1, BB2, BB
3 ... BBn is converted to each indoor unit 201/202/203 ... 2
It is stored in the memory of the CPU 101 as an identification code corresponding to 0n. The decision identification code determines, for example, a machine number in accordance with the order of random numbers arranged in the above-mentioned predetermined order, and the machine number is assigned, for example, a binary 12-bit numerical value in the above-mentioned predetermined order in order. Number.

In step 9 "determination identification code output", the determination identification codes BB1 and BB2 determined in step 8
BB3 ... BBn is converted to each provisional code signal AA1, AA2, A
A3: output to an input / output port (not shown) of the CPU 101 in correspondence with AAn.

In the step 10 "fetching and determining the decision identification code", each of the CPUs 201B, 202B and 203B
... 20 nB operate the decision identification code taking subroutine provided for each, and each provisional code signal AA1, AA2, A
A3... BB1 · BB based on AAn
... BB3... BBn, each of its own identification codes is individually fetched and stored in the memory of the CPU.

In the "setting completion instruction" of step 11, each CPU 201B / 202B / 203B... 20n
B is a setting completion signal CC1, CC2, C indicating that the setting of the identification code is completed based on the signal in which the self-determined identification code in step 10 has been stored in the memory.
After outputting C3 · CCn to the input / output port of each CPU,
It is ready to issue a control command for air conditioning control.

In the "setting completion confirmation" of step 12, the CPU 101
3B: Setting completion signals CC1 and CC output by 20 nB
The air conditioner can be controlled based on the signal obtained by capturing 2.CC3.CCn.

If it is determined in steps 5 and 6 that there is an overlap, the process proceeds to another step 13. In this case, in “temporary code reselection” in step 13, the CPU 101 duplicates the command signal for causing the CPU of the indoor unit that has output the duplicated temporary code to perform an operation of selecting another temporary code. The data is output to the input / output port of the CPU 101 based on the provisional code.

Based on this command signal, only the CPU of the indoor unit performs the operations from “provisional code generation” in step 2 to “provisional code output” in step 4 and the CPU 1
01 is an operation from “acquisition of provisional code” in step 5 to “duplication determination (whether there is the same provisional code?)” In step 6;
The process is repeated until it is determined that there is no overlap. The operation according to the flow of FIG. 2 as described above is performed again every time the power is turned on.

[Modification] The present invention can be modified as follows. (1) The provisional code is configured to select a simple decimal number or binary number without using a random number. In this case, the determination identification code, that is, the machine number is determined by making the number one or two digits higher than the provisional code.

(2) Each indoor unit 201, 202, 203 ...
The operation of giving the setting information A of the operating condition for 20n
As illustrated in FIG. 3, the processing function according to the flow of FIG. 2 is applied to a common operation unit, for example, one configured to be operated by the operation unit 201 </ b> A.

(3) The structure of FIG. 1 and the structure of FIG.
And a hybrid configuration such as [Configuration A] and [Configuration B] in FIG. 4, for example.

(4) A signal line between each CPU and a signal line of the operation device in the configuration of FIGS. 1 and 3 are connected via a relay terminal P provided in the outdoor unit and each indoor unit as shown in FIG. It is configured to be wired.

(5) In a configuration in which a plurality of outdoor units are provided side by side, for example, as shown in FIG.
The CPU 101A and 101B are controlled in a joint manner via a terminal P, and the processing function according to the flow of FIG.
U101A or 101B is configured to perform the processing.

(6) Each provisional code signal AA1, AA2, AA3
... AAn and decision identification codes BB1, BB2, BB3 ...
.., BBn, the CPU 101 and each of the CPUs 201B, 20
2B · 203B... 20 nB of memory address.

(7) Immediately after the equipment is installed, the power supply of the outdoor unit and all the indoor units is turned on all at once, so that the identification codes for all the indoor units are initialized. The stored memory is configured to be continuously stored by a battery provided in each CPU.

(8) In a use state in which the power of a plurality of indoor units is individually and appropriately turned on, the processing of the flow of FIG. 2 is performed by the provisional codes of some of the turned on indoor units. Perform and set the identification code for some of the powered indoor units, and then when the remaining indoor units are powered on, leave the already set identification code,
Thereafter, the provisional codes of the indoor units that are turned on and the identification codes that have already been set are processed as the fetched codes of step 5 and step 6 so that similar processing is performed.

(9) Remote wireless command control for establishing a connection between each indoor unit and each operating device by wireless connection, for example, by light wave communication using infrared rays, sound wave communication using ultrasonic waves, radio wave communication using ultrashort waves, etc. It consists of a type.

(10) The connection between each indoor unit and the outdoor unit is constituted by a remote wireless command control type which is connected by wireless connection, for example, by light wave communication using infrared rays or radio wave communication using ultrashort waves.

[0038]

According to the present invention, at the time of initial power supply, each CPU of each indoor unit newly creates a temporary identification code individually selected for each of the outdoor units based on the temporary identification code. The CPU on the side determines each individual decision identification code for each indoor unit, and controls the air conditioning such as cooling and heating in each indoor unit by the control command with this decision identification code. Can automatically set the identification code of each indoor unit, and it is set to a unique identification code, so there is no need for complicated operations such as setting the identification code by operating inside each indoor unit after installation In addition, it is possible to provide a device that does not cause unexpected inconvenience to users due to malfunction due to mismatch of identification codes between indoor units and outdoor units, and a multi-digit switch for setting identification codes, etc. Manipulation by In the part no simple arrangement has a feature, such as may be provided.

[Brief description of the drawings]

 The drawings show the embodiments, and the contents of each drawing are as follows.

FIG. 1 is a block diagram of the present invention.

FIG. 2 is a flowchart of an operation of a main part of the present invention.

FIG. 3 is a block diagram showing a modified block of the present invention.

FIG. 4 is a block diagram of a modified block according to the present invention.

FIG. 5 is a block diagram of a conventional technique.

[Explanation of symbols]

100 Outdoor Unit 101 CPU 201, 202, 203, 20n Indoor Unit 201A, 202A, 203A, 20nA Operation Unit 201B, 202B, 203B, 20nB CPU 111, 211, 212, 213, 21n Multiple Digit Switch

Claims (2)

(57) [Claims] 1. A system in which a plurality of indoor units are linked to one outdoor unit, and each of the indoor units is controlled based on a control command for controlling the operation of each of the indoor units and the outdoor unit. A command control device (hereinafter, referred to as a device) for a distributed arrangement type air conditioner for performing air conditioning such as cooling and heating, wherein each CPU provided in each of the indoor units when power is initially turned on.
However, a temporary code selecting means for newly selecting a temporary identification code (hereinafter, referred to as a temporary code) individually, and a CPU provided in the outdoor unit performs a comparison process on each of the temporary codes to form a duplicate temporary code. (Hereinafter referred to as a duplicate temporary code), and the CPU of the outdoor unit causes the CPU of the indoor unit corresponding to the duplicate temporary code to select a new temporary code different from the current temporary code. A selection change command means for giving a selection change command for, when the detection is not obtained, the CPU of the outdoor unit processes each of the provisional codes to generate each predetermined code, and converts each of the predetermined codes into each of the indoors. A decision storage means for storing in the CPU of the outdoor unit as each individual decision identification code corresponding to the unit; and a storage command for causing the CPU of the outdoor unit to store the individual decision identification code in the CPU of each indoor unit. Give identification An apparatus comprising: code storage commanding means; and identification control means for performing the control by identifying each of the indoor units according to the control command to which the individual determination identification code is attached. 2. The apparatus according to claim 1, further comprising: said temporary code selecting means using a random number as said temporary code; and said decision storage means using a serial number as said predetermined code. Equipment to do.