JP3819569B2 - Centralized control air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a centralized control air-conditioner to automatically calculate a fundamental charge for each tenant. SOLUTION: An air-conditioning system comprises a plurality of devices 20 to be controlled divided into user units classified by a user; and a centralized control device 2 to control the device to be controlled. The centralized control device 2 has a function to compute the fundamental charge according to a given reference.

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a centralized control type air conditioning system, and more particularly to a centralized control type air conditioning system having a function of automatically calculating a basic charge of an air conditioning charge.
[0002]
[Prior art]
Conventionally, many indoor units and outdoor units constituting an air conditioning system are connected to a main controller via a communication line, and local control is performed by the controller in each indoor unit, while the main controller controls the entire air conditioning system. There is a centralized control type air conditioning system in which control is performed. In this type of centralized control type air conditioning system, when the total number of indoor units increases, the processing of the main controller becomes enormous, and as a result, the processing efficiency of the entire system decreases.
[0003]
Therefore, a plurality of indoor units are connected to the main controller via a sub controller and a communication line, and the entire system is controlled by the main controller. The sub controller provided on each user (hereinafter referred to as a tenant) side performs indoor control. Some have been proposed to control the machine.
[0004]
In this type of centralized control type air conditioning system, it is common to use the sum of the basic charge (fixed cost) and the metered charge as the air-conditioning charge. In this case, you must first set an individual basic charge for each tenant. I must. It is possible to make this basic charge the same for each tenant, but if the tenant's scale (floor area) and operating time are different, in order to correct the imbalance in air conditioning charges for each tenant, etc. An individual basic charge for each tenant was set.
[0005]
Conventionally, an individual basic fee is set by individually inputting a basic fee for each tenant to a main controller.
[0006]
This basic charge setting method includes a method that sets a basic charge proportional to the total capacity of each tenant's indoor units (capacity unit price method) and a method that sets a basic charge proportional to the floor area of each tenant (area unit price). Method).
[0007]
[Problems to be solved by the invention]
However, as the number of buildings rises, the total number of tenants managed by one centralized control air conditioning system tends to increase. In a centralized control type air conditioning system that supervises a large number of tenants, if an administrator inputs a large number of basic charges that are different for each tenant one by one, input errors are likely to occur and a large amount of labor is required for input. There is a problem.
[0008]
An object of this invention is to provide the centralized control type air conditioning system which can calculate the basic charge of each tenant.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 is an air conditioning system including a centralized control device that is connected to a plurality of controlled devices divided into user units divided for each user through a communication line and controls the controlled devices. The central control device calculates the total capacity of the controlled device for each user unit based on communication data input from each controlled device connected to the centralized control device via a communication line. This is characterized by having a function of calculating according to the total capacity .
[0012]
According to the present invention, for example, when calculating the basic fee based on the total capacity of the controlled device in units of users or the total floor area in units of users, the basic fee for all tenants obtained by the administrator's calculation etc. Compared to entering one by one, the basic charge can be set with extremely little effort.
[0013]
According to a second aspect of the present invention, there is provided an air conditioning system including a centralized control device that is connected to a plurality of controlled devices divided into user units divided for each user via a communication line and controls the controlled devices. The centralized control device calculates the total capacity of the controlled device for each user unit based on communication data input from each controlled device connected to the centralized control device via a communication line, and calculates according to the total capacity. A second function that calculates the basic charge for each user according to the total floor area of the user, and a third function that allows the basic charge for the user to be individually input. The first, second, and third functions can be alternatively selected.
[0014]
According to the present invention, it is possible to arbitrarily select any one of individual input, capacity unit price, and area unit price, and when the capacity unit price or area unit price is selected, the calculation is performed by the administrator. Compared to entering the basic charges for all tenants one by one, the basic charges are set with very little effort.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
[0016]
FIG. 1 is a block diagram illustrating a schematic configuration of a centralized control type air conditioning system according to an embodiment. The air conditioning system 1 includes a main controller 2 that is a centralized control device that controls the entire air conditioning system 1 and terminal processing control that is connected to the main controller 2 via a two-wire main communication line LM that uses a multiplex transmission method. A plurality of communication adapters 3-1 to 3-3 serving as devices and connected to each of the communication adapters 3-1 to 3-3 via the two-wire sub communication lines LS 1 to LS 3 as in the main communication line LM. It consists of a control device group UG.
[0017]
Next, an aspect of the controlled device group UG will be described with reference to FIG. Various modes of the controlled device group UG can be considered, and an example thereof will be described below. The first communication adapter 3-1 is connected to a plurality of indoor units 20 and outdoor unit controllers 21 as controlled devices via a sub communication line LS 1, and further to a plurality of units via an outdoor unit controller 21 as a local control unit. The outdoor unit 22 is connected.
[0018]
The second communication adapter 3-2 is connected to the first controlled device group to which the plurality of indoor units 20 and one outdoor unit 22 are connected via the first sub communication line LS21, and the second sub communication line LS22. Similarly, a second group of controlled devices to which a plurality of indoor units 20 and one outdoor unit 22 are connected are connected.
[0019]
The third communication adapter 3-3 is connected to a plurality of indoor / outdoor unit sets 24, each of which is connected to one indoor unit 20 via a sub communication line LS3. A plurality of indoor / outdoor unit sets 26 are connected via a group control communication line GL, which is a control line.
[0020]
Here, the configuration of the main controller 2, the communication adapter 3-1 and the communication adapter 3-2 will be described.
[0021]
The main controller 2 includes a communication control board having a configuration substantially similar to the configuration of a communication adapter, which will be described later, a controller body 2-1 in which a control board, which will be described later for performing various controls, and the like, various setting data, and A display unit 2-2 for displaying an operation state and the like, and a printer 2-3 for printing out various data are configured.
[0022]
As shown in FIG. 2, the communication adapter 3-1 includes a CPU 10 that controls the entire communication adapter 3-1, a ROM 11 that stores control programs, data, and the like, a RAM 12 that temporarily stores various data, and an external device. The CPU 10, the ROM 11, the RAM 12 and the interface unit 13 are connected via a bus.
[0023]
Furthermore, controlled devices U11 to U1n such as indoor units and outdoor units are connected via an interface unit 13 and a sub communication line LS1. The same applies to other communication adapters 3-3.
[0024]
As shown in FIG. 3, the communication adapter 3-2 includes a CPU 10 that controls the entire communication adapter 3-2 in substantially the same manner as the communication adapter 3-1, a ROM 11 that stores control programs and data, and data. It comprises a RAM 12 that also functions as a buffer and temporarily stores various data, and an interface unit 13A that performs an interface operation with the outside. The CPU 10, ROM 11, RAM 12, and interface unit 13A are connected via a bus. ing. Furthermore, controlled devices U11 to U1n such as indoor units and outdoor units are connected via an interface unit 13A, a communication connection terminal T1 and a sub communication line LS21. Furthermore, controlled devices U21 to U2n are connected to an interface unit. 13A, connected via a communication connection terminal T2 and a sub-communication line LS22.
[0025]
Next, the indoor unit control system will be described by taking the indoor unit 20 connected to the communication adapter 3-1 through the sub communication line LS1 as an example.
[0026]
As shown in FIG. 4, the indoor unit 20 includes a CPU 30 that controls the entire indoor unit 20, a ROM 31 that stores a control program, data, and the like, a RAM 32 that temporarily stores various data, and an external interface. The CPU 30, the ROM 31, the RAM 32, and the interface unit 33 are connected via a bus. Furthermore, the communication adapter 3-1, the other indoor unit 20, and the outdoor unit controller 21 are connected via the interface unit 33 and the sub communication line LS1.
[0027]
Next, the configuration of the outdoor unit controller 21 will be described with reference to FIG.
[0028]
As shown in FIG. 5, the outdoor unit controller 21 includes a CPU 40 that controls the entire outdoor unit controller 21, a ROM 41 that stores control programs, data, and the like, a RAM 42 that temporarily stores various types of data, The CPU 40, the ROM 41, the RAM 42, and the interface unit 43 are connected via a bus. Furthermore, the communication adapter 3-1 and the indoor unit 20 are connected via an interface unit 33 and a sub communication line LS1, and each outdoor unit 22 is connected via a second sub communication line LSB.
[0029]
FIG. 6 shows a schematic configuration diagram of the control board 50 in the controller main body 2-1. The control board 50 includes an internal timer 51A that outputs a timing control signal CTM, a CPU 51 that controls the entire control board 50, a ROM 52 that stores a control program, data, and the like for performing automatic control, and a temporary A daily timer program for performing automatic control, a nonvolatile RAM 53 for storing and holding various data, and an interface unit 54 for performing an interface operation with the outside. The CPU 51, ROM 52, nonvolatile RAM 53, interface unit 54, display unit 2-2, and printer 2-3 are connected via a bus. Further, the communication adapters 3-1 to 3-3 are connected via the interface unit 54 and the main communication line LM.
[0030]
In the above configuration, as shown in FIG. 8, the plurality of indoor units 20 are divided into user units divided for each user (tenant A, B), and the main controller 2 has a basic air conditioning charge for each user. It has a function to calculate a charge (fixed cost) according to a predetermined standard.
[0031]
FIG. 7 shows a “basic charge calculation menu” screen, which is displayed on the display section 2-2 of the main controller 2 by a predetermined operation. Basic charge calculation methods include, for example, a method that sets a basic charge proportional to the total capacity of each tenant's indoor units (capacity unit price method), and a method that sets a basic charge proportional to the floor area of each tenant (area Unit price method).
[0032]
(A) The ability unit price method administrator who calculates the basic charge based on the capacity of the indoor unit calls up the “basic charge calculation menu” screen on the display section 2-2 of the main controller 2 by a predetermined operation. Select “Calculate based on indoor unit capacity”. In this case, information indicating which tenant A, B... Each indoor unit 20 belongs to is input in the main controller 2 in advance.
[0033]
In FIG. 8, the communication adapter 3-1 and the indoor units 20-1, 20-2, 20-3 constitute a first controlled system, and the indoor units 20-1, 20-2 belong to the tenant A. The indoor unit 20-3 is assumed to belong to the tenant B.
[0034]
The communication adapter 3-1 outputs a capability value request command to the indoor units 20-1, 20-2, 20-3... At a predetermined interval, and receives the capability value request command. 20-2, 20-3,... Transmit their own maximum driving capacity together with their own indoor unit number to the communication adapter 3-1 via the sub communication line LS1.
[0035]
When the communication adapter 3-1 collects all the driving capacities of the indoor units 20-1, 20-2, 20-3..., The main communication is performed with the main controller 2 in a state where these driving capacities are associated with the indoor unit numbers. Transmit via line MS. Such communication is performed similarly in all other communication adapters.
[0036]
Specifically, 4.5 kW + 5.0 kW = 9.5 kW is transmitted as the total capacity value for tenant A, and 4.5 kW is transmitted for tenant B because there is one indoor unit belonging to tenant B. .
[0037]
At this stage, the “basic charge input request” screen is called up on the display section 2-2 of the main controller 2. Therefore, the manager inputs, for example, “300” yen as the basic charge per kW. The main controller 2 calculates a basic fee for each tenant based on the basic fee per 1 kW. Specifically, for tenant A, it is 300 yen × 9.5 kW = 2850 yen. For tenant B, the price is 300 yen × 4.5 kW = 1350 yen.
[0038]
The calculated basic fee is displayed on the display section 2-2 of the main controller 2. When the basic fee needs to be corrected, another menu screen is called and the basic fee is corrected by this screen operation. Thereafter, if it is necessary to print a list of the determined basic charges, printing is performed by the printer 2-3.
[0039]
(B) The area unit price administrator who calculates the basic charge based on the floor area of the tenant selects “2. Calculate using the floor area of the tenant” on the “Basic charge calculation menu” screen shown in FIG. This menu operation is used to input the area occupied by each tenant and input the basic charge per 1 m ² . Then, the main controller 2 calculates (basic charge per 1 m ² ) × (tenant occupied area) and displays the calculation result on the display unit 2-2.
[0040]
The calculated basic fee is displayed on the display section 2-2 of the main controller 2. When the basic fee needs to be corrected, another menu screen is called and the basic fee is corrected by this screen operation. Thereafter, if it is necessary to print a list of the determined basic charges, printing is performed by the printer 2-3.
[0041]
(C) The individual input method manager selects “3. Individual input” on the “basic charge calculation menu” screen shown in FIG. In this case, the manager calls up another menu screen and inputs the basic fee determined for each tenant by this screen operation one by one.
[0042]
All the functions of the methods (A) to (C) described above are added to the main controller 2, and the administrator can arbitrarily select any method depending on the circumstances. When the method of (A) or (B) is selected, the basic fee can be reduced with much less labor than when entering the basic fee of all tenants obtained by calculation of the manager one by one. Can be determined.
[0043]
【The invention's effect】
According to the invention of claim 1 Symbol placement, for example, the total capacity of the control device of the user units, or when calculating the base rate, based on the total floor area of the user units, obtained by the administrator of calculation or the like Compared to entering the basic charges for all tenants one by one, the basic charges can be set with very little effort.
[0044]
According to the second aspect of the present invention, it is possible to arbitrarily select any one of the individual input, the capacity unit price, and the area unit price. Compared to entering the basic fees for all tenants calculated one by one, the basic fee is set with very little effort.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of an air conditioning system.
FIG. 2 is a block diagram showing a schematic configuration of a communication adapter.
FIG. 3 is a block diagram showing a schematic configuration of another communication adapter.
FIG. 4 is a block diagram illustrating a schematic configuration of an indoor unit control system.
FIG. 5 is a block diagram showing a schematic configuration of an outdoor unit controller.
FIG. 6 is a schematic configuration diagram of a control board of the main controller.
FIG. 7 is a diagram showing a basic charge calculation menu.
FIG. 8 is a diagram illustrating an outline operation of the air conditioning system according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air conditioning system 2 Main controller 2-1 Controller main body 2-2 Display part 20 Indoor unit 21 Outdoor unit controller 22 Outdoor unit 24,26 Indoor / outdoor unit set 25 Remote controller 50 Control board LM Main communication line LS1, LS21, LS22, LS3, LSB Sub-communication line UG Controlled device group U11 to U1n, U21 to U2n Controlled device

Claims (2)

In an air conditioning system including a centralized control device that is connected to a plurality of controlled devices divided into user units divided for each user via a communication line and controls the controlled device.
The centralized control device calculates a basic charge for each user based on communication data input from each controlled device connected to the centralized control device via a communication line, and calculates a total capacity of the controlled device for each user unit. The centralized control type air conditioning system is provided with a function of calculating according to the total capacity . In an air conditioning system including a centralized control device that is connected to a plurality of controlled devices divided into user units divided for each user via a communication line and controls the controlled device.
The central control device is:
Based on the communication data input from each controlled device connected to the centralized control device through a communication line, the basic charge for each user is calculated based on the total capacity of the controlled device for each user unit. A first function to
A second function for calculating the basic charge per user according to the total floor area per user;
A centralized control type comprising a third function that enables individual input of the basic charge for each user , and the first, second, and third functions can be alternatively selected Air conditioning system.

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