JP2008241163A - Air conditioning control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioning control system controlling air conditioners so that mixed gain can be expected while preventing mixed loss due to the simultaneous operation of the air conditioners existing in the same space. <P>SOLUTION: A control plan determining part 53 of a server 5 has a function of determining the air conditioner in a preferential operation mode from demand information on all the air conditioners 1<SB>1</SB>-1n existing in the same space when the operation modes of the air conditioners 1<SB>1</SB>-1n controlling air-conditioning environment adjoining one another are different, determining a control plan for setting the set temperature of the air conditioners to which priority is not given, to the energy-saving side compared with the set temperature of the air conditioner to which priority is given or carrying out air blowing operation, and instructing the operation based on the control plan to the air conditioners. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air conditioning control system that performs air conditioning control of a building or the like.

  In recent years, social demands for energy conservation due to global warming are increasing. The current energy conservation law obliges the consumer sector not only to improve the energy conservation performance of individual devices, but also to conserve energy in terms of management using BEMS (Building and Energy Management System).

  However, as the actual situation of building management, the building manager does not always operate air conditioning devices such as cooling and heating appropriately from the viewpoint of comfort and energy saving. In particular, with regard to thermal environment management (for example, temperature management) of living spaces where energy saving and comfort are intricately related, a customary target temperature is set for ease of management, and it is received from users who enjoy the thermal environment. Generally, the set value is changed according to a claim.

  In other words, because temperature management is performed without fully considering the characteristics of the building or occupants, the living space is not necessarily kept in a comfortable state for the user, and furthermore, waste of energy consumed by the air conditioner occurs. There is. In addition, some users are dissatisfied with being unable to control their own thermal environment because they are in a thermal environment managed by the building manager.

  In response to the problems caused by temperature management of air conditioning control, users' requests for thermal environment are collected in real time from personal computer terminals (hereinafter referred to as personal computers) operated by each individual. There is a method to set the target temperature based on the relationship between the thermal environment desired by the user and the target temperature in real time, the user characteristics that change from moment to moment, the difference between the actual temperature of the living space and the detected temperature, etc. It is possible to change the thermal environment according to the characteristics of each building. (For example, refer to Patent Document 1).

  In the method disclosed in Patent Document 1, the thermal environment desired by the user is associated with the set temperature in real time, the user characteristics that change from moment to moment, the temperature difference between the measured value of the temperature sensor and the usage range, etc. It is possible to change the environment according to the building characteristics.

  By the way, in a space such as an office, there is unevenness in the thermal environment due to the usage pattern and the presence of the opening, regardless of the same space, and the air conditioner is operated so as to suppress the unevenness.

  As the case where the unevenness is extremely large, for example, as shown in FIG. 8 (a), the air conditioner 1a near the window side heats in the winter, while the air conditioner 1b on the indoor side cools, or the outside air There is a case where the air conditioner to be heated performs heating and another air conditioner performs cooling.

  In such a case, not only the cooled air and the heated air are mixed to cause heat loss, but also the temperature difference between the spaces (in the case of FIG. 8A, for example, the heating side is 26 ° C. and the cooling side is 24 ° C. (° C.) was an inducement, and air mixing was promoted as indicated by arrow Y, resulting in mixing loss. The air conditioners 1a and 1b shown in FIG. X are composed of an outdoor unit 10 and an indoor unit 11.

As a countermeasure, if the set temperature of the air conditioner 1a to be heated is 22 ° C., for example, as shown in FIG. 8B, the set temperature of the air conditioner 1b to be cooled is, for example, 26 ° C. and is not lower than the set temperature of heating. There is a way. In this case, the air flows from the warmer side to the colder side as indicated by the arrow Y, so that naturally generated heat is not cooled by cooling, but is heated by heating, resulting in a mixing gain that carries heat from the cooling to the heating, thereby saving energy. There is an advantage that A control method incorporating this method has been proposed (for example, Patent Document 2).
JP 2004-205202 A JP-A-8-61751

  By the way, even when a plurality of air conditioners are installed in the same space when performing temperature setting using a user's request report as in the system disclosed in Patent Document 1, each air conditioner is Since the respective set temperatures are changed based on the desired information, the mixing loss as described above may occur in some cases. In addition, when hot and cold places are unevenly distributed in the same space, if the air is agitated, the above-described mixing gain can be generated and maintained in a uniform environment without using cold or hot air. However, there was a problem that even a temporary uncomfortable environment could occur.

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide an air-conditioner that exists in the same space in an air-conditioning control system that changes a set temperature of an air-conditioner based on a user's request report. Another object of the present invention is to provide an air conditioning control system for controlling an air conditioner so as to prevent mixing loss due to simultaneous operation of the air conditioners and to expect a mixing gain.

  In order to achieve the above object, according to the first aspect of the present invention, a plurality of air conditioners that are installed in the same space and independently control the corresponding air conditioning environment, and the cooling / heating of each of the air conditioners are provided. An operation mode acquisition unit for acquiring an operation mode, request information acquisition means for acquiring request information for each air conditioner from a user existing in the space, an operation mode acquired by the operation mode acquisition unit and the desire information acquisition Air conditioning control including a control plan determining unit that determines a set temperature of the air conditioner as a control policy based on request information corresponding to each air conditioner acquired by the means, and instructs the air conditioner to operate according to the control policy In the system, when the operation mode of the air conditioners that control the air conditioning environments adjacent to each other is different, the control plan determination unit prioritizes operation based on request information for all air conditioners existing in the same space. The air conditioner of the mode is determined, and the control policy for setting the air conditioner that has not been prioritized to the energy saving side from the set temperature of the prioritized air conditioner or the air blowing operation is determined. It has a function of instructing an air conditioner.

  According to the first aspect of the present invention, even if the air conditioners that exist in the same space and correspond to the adjacent air conditioning environment are in different operation modes of cooling and heating, respectively, By determining the priority operation mode based on the requested information, and setting the set temperature of the air conditioner in the operation mode not prioritized to the energy saving side, mixing loss due to simultaneous operation of cooling and heating is prevented, and mixing gain Can be expected.

  In the invention of claim 2, in the invention of claim 1, weighting is given so as to give priority to the request for strengthening heating compared to the request for strengthening cooling in the request information used for determining the priority operation mode. It is characterized by.

  In the invention of claim 2, the specific gravity of the heating that can eliminate the cold environment that easily affects the health and productivity of the user can be increased with respect to the cooling, and the air conditioning environment that takes into account the health and productivity of the user can be achieved. realizable.

  According to a third aspect of the present invention, in the second aspect of the present invention, a temperature sensor for measuring the outside air temperature is provided, and the weighting ratio is changed according to the temperature measured by the temperature sensor.

  According to the third aspect of the present invention, weighting can be performed in consideration of the season, and the temperature can be adjusted appropriately to the change in environment between seasons.

  The present invention is based on user request information corresponding to all air conditioners even when the air conditioners corresponding to the adjacent air conditioning environments are in the same space and are in different operation modes of cooling and heating, respectively. By determining the priority operation mode and setting the set temperature of the air conditioner in the non-priority operation mode to the energy saving side, mixing loss due to simultaneous operation of cooling and heating can be prevented and mixing gain can be expected There is.

  FIG. 1 shows a system according to an embodiment of the present invention, and the system according to the present embodiment includes an air conditioning system (I) and a control system (II).

The air conditioning system (I) is composed of an indoor unit 10 and an outdoor unit 11 as will be described later, and a plurality of multi-type air conditioners 1 _1, ..., 1n in which the indoor units 10 are installed in the same space. , each of the air conditioners 1 ₁ ..., the air conditioning controller 2 ₁ performed based on the control policy from the server 5 to be described later operation control of each provided in correspondence with 1n ..., constituted by a 2n.

The control system (II) is connected between the request input device 4 composed of a PC terminal used by a user and the request input device 4 via a network 3 such as a LAN, and a control signal line (or The network 3) and the like are configured by an air conditioning control device 2 ₁ ... Of the air conditioning system (I) and a server 5 connected to each air conditioner 1.

FIG. 2A shows a plan view of an installation example of the present embodiment. As shown in the drawing, in the area A of the floor F, which is the air conditioning target of the building, each room of the air conditioners 1 ₁ ,. The air conditioners 1 ₁ ..., 1n are sequentially arranged in parallel from the window side to the indoor side so as to control the corresponding air conditioning environment.

  Also, in the area A, external air conditioners 6a and 6b are installed that adjust the temperature of the outside air from the blower 60 and take it into a space (room) to be air-conditioned.

  Each indoor unit 10 has a function of controlling the output so that the set temperature matches the temperature detected by the temperature sensor provided at the suction port.

FIG. 2B shows a cross section of the building. As shown in FIG. 2A, the indoor units 10 and the outdoor units 11 of the air conditioners 1 (1 ₁ ..., 1n) are respectively installed on the floors F1 to F4 of each floor. is, the air conditioner _{1 (1} 1 ..., 1n) air conditioning controller _{2 (2} 1 ..., 2n) to the indoor unit 10 is provided for each floor F1~F4 of being connected to, the air conditioning controller 2 _{(2 1} ... , 2n) is connected to a server 5 not shown in FIG.

  Each floor F1 to F4 is provided with a PC terminal constituting the request input device 4 corresponding to each user who enjoys the air-conditioning environment in each space, and is connected to the server 5 via the network 2.

  Here, the request input device 4 of the control system (II) is realized by installing application software for request input on a personal computer used by each user and executing the application software. When executed, as shown in FIG. 3, the monitor has a unique request that specifies the air conditioning temperature, such as “I want you to raise the temperature”, “I want you to lower the temperature”, or “I need to keep it as it is”, and the individual user. Information (name, e-mail address, etc.) and the number of the air conditioner 1 to be requested (air conditioning number) are displayed on the report screen for uploading to the server 5, and a keyboard or mouse pointing device is operated. By doing so, the user can send such information to the server 5. The device number and unique information are cached for each request input device 4 and are automatically input when a report screen is displayed. A web server may be installed on the server 5 side, and a web page for inputting desired information on the web server may be accessed and displayed by a web browser installed on the PC terminal.

The server 5 includes a request information acquisition unit 50 having a communication function for acquiring user's request information input by the request input device 4 as described above by access from the request input device 4, and the request information acquisition unit. A request information storage unit 51 for storing the request information acquired at 50, an operation mode acquisition unit 52 for acquiring the cooling / heating operation mode set by the user in each air conditioner 1 of the air conditioning system (I), Each air conditioner 1 _{1 of the} air conditioning system (I) is obtained from the request content acquired by the operation mode acquisition unit 52 and the user request information for the air conditioning temperature acquired by the request information acquisition unit 50 and stored in the request information storage unit 51. ... determines 1n air conditioning control policy set based on the determination content temperature, the operation content of the air is stopped to be described later, the air conditioning controller 2 ₁ ..., 1 ₁ ... individually to the air conditioner through 2n, the 1n And a control plan determining unit 53 to generate instruction data to be constant.

The operation mode acquisition unit 52 acquires information on the operation mode (heating or cooling) set in the air conditioners 1a and 1B corresponding to each of the air conditioning controllers 2 ₁ ... 2n, and operates as described later. It is determined whether or not the modes are mixed, and the result is passed to the control plan determination unit 53.

  The control plan deciding unit 53 derives a set temperature for deriving a set temperature for changing the current set temperature of the indoor units 10 of the air conditioners 1a and 1b in the desired direction based on the request information held in the request information storage unit 51. As a basic function. That is, the control plan determination unit 53 takes in the request information from the request information storage unit 51 at predetermined time intervals, processes it as control effective data described later, and then forms consensus.

  In the request information storage unit 51, as shown in FIG. 4 (a), a request ("1" in the figure) is input from the request input devices 4 (differentiated as A to D in the figure) at an arbitrary time. ”,“ −1 ”indicates“ desired to lower the temperature ”and“ 0 ”indicates“ can be left as is ”), and the control plan determination unit 53 stores the stored request information. It is processed as control effective data as shown in FIG.

  In this case, each time the request information is input, it is updated to new request information. However, if there is no new request information after a certain time (for example, 1 hour) has elapsed since the last time it was input, It is reset under the control of the control plan determination unit 53. It is also reset when it is adopted in the consensus building described below. In addition, the set temperature is changed by consensus formation, and control by changing the set temperature by new consensus formation is not performed until the temperature of the suction port of the air conditioner 1 reaches the changed temperature or until a certain time has elapsed from the change. It has become.

Now, the consensus building process of the control plan determination unit 53 is performed at predetermined time intervals. Until the request information input as described above is updated or reset from the input time point, for example, as shown in FIG. In the control effective data corresponding to the request information of each request input device 4 at the time of the composite formation process, the number of requests “I want to increase the temperature” U and “The temperature is decreased” Based on the ratio of the desired number D and the number thereof, it is determined whether the predetermined change ΔT is to be added to or subtracted from the set temperature T, and the temperature obtained by adding or subtracting the predetermined change ΔT to the current set temperature T is newly determined. The set temperature data is sent to the air conditioning control devices 2 ₁ ... 2n. Air-conditioning control device 2 ₁ . 2n changes the present set temperature of each air conditioner 1 based on this set temperature.

  FIG. 5 shows an example of logic for determining the set temperature in the consensus building process. In this example, when the slope of U / D is 7/13 or less, the temperature decreases (▼), When the slope is 13/7 or more, it is determined that the current temperature is maintained in the direction in which the temperature is increased (▲) and between 13/7 and 7/13. However, when the number of requests in both directions is 2 or less, it is determined to maintain the current temperature. Note that this logic is an example, and the method of setting the inclination can be set according to the purpose of air conditioning.

Therefore, the air-conditioning environment controlled by the indoor units 10 of the air conditioners 1 ₁ ..., 1n is controlled at the set temperature based on the consensus forming process based on the user's request information for the air conditioners by the request input device 4. That is, the set temperature of the air conditioners 1 _1, ..., 1n corresponding to each air conditioning environment area is changed based on the request contents for the air conditioning number specified in the request information.

In addition, as another function, the control plan determination unit 53 acquires information on whether the operation mode set in the air conditioners 1 _1, ..., 1n that controls adjacent air conditioning environments in the same space is heating or cooling. It has a function of acquiring through the unit 52 and determining an operation mode to be prioritized based on the acquired information and the contents of desired information corresponding to all the air conditioners 1 ₁ ,.

  Next, the processing operation of the control plan determination unit 53 that determines the above-described priority operation mode will be described based on the flowchart of FIG.

First, when the system is activated, the control plan determination unit 53 of the server 5 acquires information on the operation modes of the air conditioners 1 ₁ ..., 1n through the operation mode acquisition unit 52 (S1).

It is checked whether or not the acquired information indicates that the cooling operation mode and the heating operation mode are mixed (S2). If the acquired information indicates mixing, the current cooling side set temperature is checked. And the set temperature on the heating side are compared (S3). In this comparison, when the set temperature on the cooling side is higher by a predetermined value than the set temperature on the heating side, the priority mode is determined to be the heating side (S4), and the set temperature on the cooling side is set to a predetermined value compared with the set temperature on the heating side. If the value is not high, the request information for all the air conditioners 1 ₁ ..., 1n is collected from the request information storage unit 51 (S5). From the collected request information, the operation mode with the larger one is determined as a priority operation mode from the comparison of the number of requests “I want to raise the temperature” and “I want to lower the temperature” (S6).

  In determining the operation mode to be prioritized in step S6, weighting is given to the declaration that the temperature of the user seated on the heating side is to be increased, and the temperature of the user seated on the cooling side is to be decreased. If the number of requests for reporting exceeds the number of requests desired to be raised on the heating side exceeds the reference number, it is determined that the heating side has priority.

When the operation mode is determined, in the loop of S7 to S9, the control plan determination unit 53 collects the request information of each air conditioner 1 ₁ ... The set temperature on the air conditioner side of the air conditioner is set and the set temperature on the air conditioner side in the non-prioritized operation mode is set to the energy saving side with respect to the set temperature on the air conditioner side in the preferred operation mode, or The process which determines the control policy which makes this driving | operation the ventilation driving | operation is performed.

And all of the air conditioner 1 ₁ ..., the decision of 1n of the control policy is completed, sends an instruction based on the determined control strategy each of the air conditioner 1 ₁ ..., the air conditioning controller 2 ₁ ... corresponding to 1n, to 2n Thereafter, the processing from S1 to S9 is repeated at a constant cycle.

Thus, in this embodiment, when the operation mode of the air conditioners 1 _1, ..., 1n installed in the same space and controlled by the adjacent air conditioning environment is different, the operation mode is given priority based on the user's request. And the setting temperature of the air conditioner on the operation mode side that is not prioritized is set to the energy saving side than the setting temperature of the air conditioner in the operation mode that is prioritized or is blown, thereby mixing in two operation modes Loss can be prevented from occurring, and the air conditioning environment can be controlled in accordance with the user's request.

  By the way, as described above, when the priority mode is determined, the heating side is weighted so that the cooling side operation mode is not prioritized unless the number of requests on the cooling side exceeds the reference number with respect to the number of requests on the heating side. The temperature sensor 7 for measuring the outside air temperature is attached as shown in FIG. 7, although it is possible to prevent the user from catching a cold or reducing productivity due to cold. In step S6 of step 6, the reference number for weighting is changed according to the temperature measured by the temperature sensor 7, for example, the season is determined based on the outside air temperature, and the reference number for weighting in midwinter when the outside air temperature is low, for example. Increasing the number of standards in the spring and autumn season transition period, etc., compared to midwinter, can flexibly cope with changes in the air conditioning environment between seasons.

  It is also possible to change the weighting based on the working temperature in consideration of the radiant heat from the winter window in addition to the outside air temperature.

  Furthermore, since the number of users seated on the window side is generally small, weighting the report according to the number of people seated on the indoor side and the window side can reduce the disparity in the weight of the report between areas. It can be corrected.

It is a system configuration figure of one embodiment. It is an installation example figure of the air conditioner of one embodiment. It is a demand input screen example figure of the demand input device of one Embodiment. It is explanatory drawing of the request information used for the consensus formation process of one Embodiment. It is logic explanatory drawing of the consensus formation process of one Embodiment. It is a flowchart for operation | movement description of one Embodiment. It is a system configuration | structure figure of another example of one Embodiment. It is explanatory drawing of a prior art example.

Explanation of symbols

(I) Air conditioning system 1 ₁ ..., 1n Air conditioner 2 ₁ ... 2n Air conditioning controller
(II) Control system 3 Network 4 Request input device 5 Server 50 Request information acquisition unit 51 Request information storage unit 52 Operation mode acquisition unit 53 Control plan determination unit

Claims (3)

A plurality of air conditioners that are installed in the same space and independently control the corresponding air conditioning environment;
An operation mode acquisition unit for acquiring an operation mode of cooling and heating of each air conditioner;
Request information acquisition means for acquiring request information for each air conditioner from users existing in the space;
Based on the operation mode acquired by the operation mode acquisition unit and the request information corresponding to each air conditioner acquired by the desire information acquisition means, the set temperature of the air conditioner is determined as a control policy, and the operation according to the control policy is In an air conditioning control system with a control plan determination unit that instructs an air conditioner,
When the operation mode of the air conditioner that controls the air conditioning environment adjacent to each other is different, the control plan determination unit determines an air conditioner in the operation mode to be prioritized from the request information for all the air conditioners existing in the same space, It has a function to determine the control policy for setting the air-conditioner that has not been set to the energy-saving side from the set temperature of the prioritized air-conditioner or to perform the air blowing operation, and to instruct the air-conditioner to perform the operation according to the control policy An air conditioning control system characterized by that. 2. The air conditioning control system according to claim 1, wherein weighting is given in such a way that priority is given to a request for strengthening heating compared to a request for strengthening cooling among the request information used for determining the priority operation mode. The air conditioning control system according to claim 2, further comprising a temperature sensor that measures an outside air temperature, wherein the weighting ratio is changed according to a temperature measured by the temperature sensor.

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