JPH01283021A - Power charge managing system for air-conditioner - Google Patents

Abstract

PURPOSE:To facilitate wiring and to reduce installation cost by arranging W.H.M. in each group of air-conditioner in order to measure W.H. of each group then obtaining W.H. of each air-conditioner through proportional division of group W.H. by the accumulated value of current of each air-conditioner. CONSTITUTION:Air-conditioners 2a, 2b, 2c are classified into three groups (a), (b), (c), provided with W.M.s 1a, 1b, 1c associated with pulse transmitters for transmitting pulses through a controller 3a to a master unit 4, and the pulses are accumulated in a personal computer 5. Current values of the air-conditioners 2a, 2b, 2c are transmitted through a transmission controller 3b to the master unit 4 then they are converted into power values through the personal computer 5 and accumulated therein. W.H. values of the air-conditioners 2a, 2b, 2c are obtained through proportional division of group W.H.M. by a W.H.M. value of an air-conditioner belonging to the group obtained based on the current thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power rate management system for calculating power rates in accordance with the amount of power used by each tenant in a tenant building.

[Conventional technology]

FIG. 6 is a configuration diagram of a conventional power rate management system for air conditioners. In the figure, (1) is a power meter with a pulse transmitter installed in the power input section of all air conditioners, (2) is a split type air conditioner outdoor unit (indoor unit is omitted), (3)
a) is a transmission system that detects and integrates pulses from a power meter with a pulse transmitting device (1), and transmits the data to the master unit (4) every fixed period through a multiplex transmission line (8) using a two-wire crossing system. controller a.

(3b) is installed in each air conditioner, detects and integrates the current value for each air conditioner, and transmits the controller a (3a
), the transmission controller b1 (5), which transmits data to the master unit (4) at regular intervals, receives data from the master unit (4) and calculates the air conditioner electricity rate for each tenant. Computer,(
6) is a controller box containing a master unit (4) and a personal computer (5), (7) is a power line for each air conditioner, and transmission controller a (3a) and transmission controller (3b) have the same equipment configuration. It is.

Figure 3 shows a block diagram of a conventional general master unit, where (9) is a microcomputer (main CPU), Ql is an output section for displaying abnormalities, etc. during transmission, and 00 is a block diagram of a conventional master unit. Input unit for settings and operations, α is an MS-232C transmission unit for transmitting and receiving data with a personal computer, and G3 is R for storing integrated data.
AM card, a → is multiplex transmission board 3 for multiplex transmission signals
A programmable interface (PPI) for communicating between the sub-CPU in υ and the main CPU in the control board, [15] is a read-only memory (ROM) in which programs are written, and G61 is a readable and writable memory that temporarily stores data. Memory (RAM),
(171 is an electrically writable/readable memory (EAROM) that stores settings from a personal computer.
), and the a frame is a control board containing (9) to 09. αgl is a sub-CPU for multiplex transmission,
2 is an input section for setting an address.

Figure 5 shows a block diagram of a conventional transmission controller, where ■ indicates a microcomputer (main CPU).
U), @ is the output section for display, the example is the input section for setting, 4 is the analog input section for inputting the signal from the current sensor, (branch) is the same programmable interface as a, (// ) is a ROM that stores programs, (
(1) is a RAM that temporarily stores data, (2) is an EAROM that stores integrated data, and (I) is a control board containing ■~. Oka~f211 are exactly the same as those of the master unit.

Next, the operation will be explained.

The current value of each air conditioner outdoor unit detected by transmission controller b (3b) is integrated, and the current value is
The information is transmitted to the master unit (4) via a multiplex transmission line (8) of a line-crossing type and stored therein. In addition, the pulse integrated value of the electricity meter with pulse transmitter (1) detected by the transmission controller a (3a) is also
It is transmitted to the master unit (4) and stored in the same period as 3b).

At the time of charge calculation, the accumulated data in these master units is transmitted to the personal combiator through the R8-232C line. At this time, the power amount of each air conditioner is calculated by dividing the power amount of all air conditioners based on the pulse integrated value proportionally by the ratio of the current integrated value of each air conditioner outdoor unit, and the power amount of each air conditioner is calculated, and the group setting for each tenant is set in advance. , air conditioner electricity charges for each tenant were calculated using data such as unit prices.

[Problem to be solved by the invention]

In the conventional air conditioner power rate management system, power is supplied to all air conditioners from a single electricity meter with a pulse transmitter as described above, so the outdoor units of the air conditioners were distributed throughout the building. Wiring may be difficult if the air conditioner is used in a large building or if two types of power supply voltages are mixed, or the electricity charges for equipment (lights, outlets, etc.) that have a different voltage than the air conditioner. There was a problem in that it could not be applied when calculating charges, or when calculating charges by installing a watt-hour meter with a pulse transmitter for each tenant.

This invention was made to solve the above-mentioned problems, and even when the outdoor units of air conditioners are distributed within a building or applied to a large building, wiring is easy.
Another object of the present invention is to obtain an air conditioning charge management system that can be applied even when there are multiple types of power supply voltages or when a watt-hour meter with a pulse transmitter is installed for each tenant.

[Means to solve the problem]

In this invention, a watt-hour meter with a pulse transmitter is installed on the power supply main line for each group of air conditioners connected to each power supply voltage system in a tenant building or for each group of air conditioners installed on the same power supply voltage system. and a transmission controller A that integrates the pulses output from each electricity meter with a pulse transmitter and stores this integrated value, and a transmission controller A that is installed corresponding to each air conditioner and detects and integrates the current of each air conditioner. A transmission controller B that stores this integrated value, a master unit that receives and stores the integrated data stored in transmission controller A and transmission controller B through multiplex transmission, and a pulse integrated value that is stored in the master unit by input from the keyboard. Then, the current integrated value is received, and the amount of power used for each air conditioner is calculated by proportionally dividing the pulse integrated value for each group by the current integrated value of the corresponding air conditioner in the group, and the amount of power used by each air conditioner is calculated. By providing a personal computer that calculates charges for each corresponding tenant, a power charge management system for air conditioning equipment is configured to achieve the above object.

[For production]

The electricity rate management system for air conditioning equipment in this invention includes:
Calculate the amount of electricity determined for each power meter with pulse transmitter installed on the main power line for each group of connected air conditioners for each power supply voltage system or for each group of air conditioners installed on the same power supply voltage system. The amount of power used for each air conditioner is calculated by proportionally dividing the current integrated value of the air conditioners in each corresponding group, and the amount of power and power rate for each tenant corresponding to each air conditioner is calculated.

〔Example〕

FIG. 2 shows an example of the arrangement of air conditioner outdoor units in a tenant building. (2a), (2b), and (2c) each indicate a split type air conditioner outdoor unit, and (2a) (
2c) C, for three-phase 200V power supply, (2b) C, single-phase 1
This is for 00V power supply.

FIG. 1 shows an embodiment of the system in the arrangement shown in FIG. 2, and is divided into three types of air conditioner installation groups: (a) (bl fc). (la) (lb) (lc
) are respectively electricity meters with pulse transmitter, (2a)
(2b) (2c) are the outdoor units of split type air conditioners, (3a) (3b) f41 (51 (6) and f81 are the same as the conventional ones, respectively, (7a) (7b) (7C)
) respectively indicate the power lines of the air conditioner installation group fat (bl ic).

FIG. 3 is a block diagram showing the main part configuration of the master unit, and FIG. 4 is a block diagram showing the main part structure of the transmission controller, which is the same as the conventional one.

FIG. 5 is a block diagram showing the operation of one embodiment of the present invention. The air conditioner installation group fat will be explained.

The current value of each air conditioner outdoor unit (2a) detected by the transmission controller B (3b) is integrated (see reference numeral 31a in Fig. 5), and is transmitted at regular intervals via the two-wire multiplex transmission line (8). sent to the master unit (4),
The electric energy meter with pulse transmitter (1
The pulse integrated value of a) is also transmitted to transmission controller B (3b).
(See reference numeral 32a in Fig. 5) and is stored in the master unit (4) at the same cycle as the above (see reference numeral 32a in Fig. 5). At the time of charge calculation, the accumulated data in the master unit is inputted from the keyboard and transmitted through the MS-232C line. , is sent to the personal computer (5). At this time, each air conditioner in group a is divided by proportionally dividing the obtained electric power based on the integrated pulse value, pulse multiplier, and type of power supply voltage according to the integrated current value of each air conditioner outdoor unit (2a). Calculate the amount of electricity and install the air conditioner based on data such as tenant group designation and unit price set in advance on the computer! The air conditioner power charge for each tenant within ¥a is calculated (see reference numeral 33a in FIG. 5).

Similar processing is performed for the air conditioner installation groups and C, and the sum is added for each tenant (see reference numeral 34 in FIG. 5) to obtain the air conditioner power charge for each tenant.

In addition, although the above example describes a power rate management system for air conditioners in tenant buildings, the above implementation can also be applied to power rate management systems other than air conditioners, gas and water rate management systems in tenants, and power rate management systems in Mansiran. It has the same effect as the example.

〔Effect of the invention〕

In this invention, the power consumption with a pulse transmitter installed on the power supply main line for each group of air conditioners connected to each power supply voltage system in a tenant building, or for each group of any number of air conditioners installed on the same power supply voltage system. A transmission controller A is installed corresponding to each air conditioner, and is installed to detect and integrate the current value of each air conditioner. , a transmission controller B that stores this integrated value, a master unit that receives and stores the integrated data stored in transmission controller A and transmission controller B through multiplex transmission, and a pulse integrated value that is stored in the master unit by input from the keyboard. and the integrated current value, and calculates the amount of power used by each air conditioner by proportionally dividing the integrated pulse value for each group by the integrated current value of the corresponding air conditioner in the group, and calculates the amount of power used by each air conditioner. By installing a personal computer that calculates charges for each tenant, we have created a power rate management system for air conditioners, so even if air conditioners are installed dispersed within a building, the pulse transmitter can be By installing a power meter, wiring becomes easier and construction costs are lower. Further, it has the advantage that it can be used even when two or more types of power supply voltages are mixed.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of an embodiment of the electricity rate management system according to the present invention, Fig. 2 is an example of the arrangement of outdoor units of air conditioners for tenant buildings corresponding to the electricity rate management system shown in Fig. 1, and Fig. 3 is an example of the arrangement of outdoor units of air conditioners for tenant buildings. FIG. 4 is a block diagram showing the main part configuration of a conventional general master unit. FIG. 4 is a block diagram showing the main part structure of a conventional general transmission controller. FIG. 5 is a block diagram showing the operation of one embodiment of the present invention, and FIG.
The figure is a configuration diagram of a conventional power rate management system. In the figure, (la), (lb), and (lc) are electricity meters with pulse transmitters, (2a), (2b), and (2c) are air conditioners, and (3a) and (3b) are transmission controllers A, respectively.
and B, (4) is a master unit, (5) is a personal computer, (7a), (7b), and (7c) are power lines, and (8) is a signal line for multiplex transmission. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] A power meter with a pulse transmitter installed on the main power supply line for a group of air conditioners connected to each power supply voltage system in a tenant building, or a group of any number of air conditioners installed on the same power supply voltage system, each pulse transmitter A transmission controller A that integrates the pulses output from the watt-hour meter and stores this integrated value, is installed corresponding to each air conditioner, detects the current of each air conditioner, integrates it, and stores this integrated value. Transmission controller B, transmission controller A, and a master unit that receives and stores the integrated data stored in transmission controller B through multiplex transmission, and pulse integrated values and current integrated values stored in the master unit by input from the keyboard. is received, and the amount of electricity used for each air conditioner is calculated by proportionally dividing the integrated pulse value for each group by the integrated current value of the corresponding air conditioner in the group, and the amount of electricity used for each tenant corresponding to the air conditioner is calculated. An electric power rate management system for air conditioning equipment that is equipped with a personal computer that calculates rates.