WO2015136679A1

WO2015136679A1 - Air conditioning system and central management device

Info

Publication number: WO2015136679A1
Application number: PCT/JP2014/056784
Authority: WO
Inventors: 山田　浩久
Original assignee: 三菱電機株式会社
Priority date: 2014-03-13
Filing date: 2014-03-13
Publication date: 2015-09-17

Abstract

This air conditioning management unit has: a priority calculating section for calculating priority of a reserved room on the basis of the intended purpose of rooms managed by a reservation management unit; an operation mode-setting section for setting, on the basis of the priority of a reserved room as calculated by the priority calculating section, an energy-saving operation mode of an air conditioner installed in the reserved room; and a machine control section for controlling the air conditioner in such a manner that an operation is carried out under the energy-saving operation mode set by the operation mode-setting section.

Description

Air conditioning system and central management device

The present invention relates to an air conditioning system and a central management device that control the operation of indoor units installed in a plurality of rooms.

In a conventional air conditioner, it has been proposed to perform energy saving control by performing schedule control of the air conditioner based on a schedule control database stored in an air conditioning management device (see, for example, Patent Document 1). In Patent Document 1, a predetermined indoor unit is set as a representative device corresponding to a sales department or a closed day. For example, all indoor units installed on the same floor as the indoor unit set as the representative device are operated. An air conditioning system that unifies the mode to the operation mode of the representative device is disclosed.

JP 2010-255893 A

Here, when there is a room such as a conference room where the usage status changes day by day, even if schedule control is performed as in Patent Document 1, the operation mode of the air conditioner does not match the usage status, which may impair comfort. . Therefore, in order to perform air conditioning management of a conference room or the like whose use schedule frequently changes, it is necessary to perform schedule control in accordance with the usage status of the user.

The present invention was made to solve the above-described problems, and an object of the present invention is to provide an air-conditioning system capable of performing energy-saving control of an air conditioner installed in a room in which usage conditions change daily. To do.

The air conditioning system of the present invention acquires an air conditioner having a plurality of indoor units respectively installed in a plurality of rooms, and room identification information of a reserved room and a purpose of use of the room when accepting a room reservation. A reservation management device that manages the reservation information, and an air conditioning management device that controls the operation of the air conditioner based on the room information stored in the reservation management device and the purpose of use of the room. Based on the purpose of use of the room managed in the reservation management device, a priority calculating unit that calculates the priority of the reserved room, and a reservation room based on the priority of the reserved room calculated by the priority calculating unit The air conditioner is controlled so that the operation is performed by the operation mode setting unit that sets the energy saving operation mode of the installed air conditioner and the energy saving operation mode that is set in the operation mode setting unit. And a device control unit for.

According to the air conditioning system of the present invention, the priority of the reserved room is calculated according to the purpose of use of the room, and the energy saving operation mode is set. Even if it exists, since the energy-saving operation mode of an air conditioner can be set according to the priority according to the usage purpose of a user's room, energy-saving control can be performed, maintaining comfort.

It is a schematic diagram which shows the air conditioning system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the air conditioning system which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows an example of the room information database of FIG. It is a schematic diagram which shows an example of the user information database of FIG. It is a schematic diagram which shows an example of the use purpose database of FIG. It is a schematic diagram which shows an example of the energy saving operation database of FIG. It is a flowchart which shows the operation example of the air conditioning system of FIG.

Embodiment 1 FIG.
Hereinafter, an air conditioning system and a central management device of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing an air conditioning system according to Embodiment 1 of the present invention. The air conditioning system 1 of FIG. 1 is installed in a building provided with a plurality of rooms, for example, and includes an air conditioner 2 and a central management device 10. The air conditioner 2 is connected to the central management device 10 through a transmission line so that data transmission is possible. The central management device 10 transmits and receives various signals to and from the air conditioner 2 through the transmission line. Do. In addition, in FIG. 1, although the case where one air conditioner 2 is connected to the central management apparatus 10 is illustrated, a plurality of air conditioners 2 may be connected.

The air conditioner 2 has an outdoor unit 3 and a plurality of indoor units 4A to 4C connected to the outdoor unit 3 by refrigerant piping. The indoor units 4A to 4C are respectively installed in different rooms A to C in the building. For example, the room A (office room), the room B (conference room 1), and the room C (conference room 2) One indoor unit 4A to 4C is installed for each. In each of the rooms A to C, hand remote controllers 5A to 5C are installed for the user to operate the indoor units 4A to 4C such as set temperature and air volume.

In addition, although the case where one indoor unit 4A to 4C is installed in each room A to C is illustrated, indoor units 4A to 4C that perform air conditioning in different rooms A to C are installed. It is sufficient that a plurality of indoor units are installed in one room according to the size of the room.

The central management device 10 includes a reservation management device 20 for managing reservations and use situations of the rooms A to C, and an air conditioning management device 30 for controlling the operation of the air conditioner 2 installed in the rooms A to C. It has. The reservation management apparatus 20 is connected to a facility reservation terminal RM for a user to perform a room reservation operation. A user who reserves the rooms A to C reserves the rooms A to C from the facility reservation terminal RM. The reservation management apparatus 20 acquires various information input to the facility reservation terminal RM.

Further, room detection terminals 6A to 6C for detecting entry / exit by the user are installed in the rooms A to C, respectively, and the reservation management device 20 is based on the information detected by the room detection terminals 6A to 6C. Perform occupancy management for AC. The entrance detection terminals 6A to 6C are installed, for example, at the entrances and exits of the rooms A to C, and are composed of card readers used for unlocking and locking when entering and leaving the room, and are stored in a user information card given to each user in advance. The user identification information (ID number in this case) is read, and the user's entry / exit is detected. The room entry detection terminals 6A to 6C may be card readers used for unlocking rooms, or human detection sensors and cameras provided in the room entry detection terminals 6A to 6C.

FIG. 2 is a block diagram showing an example of the air conditioning system of FIG. 1, and the reservation management device 20 and the air conditioning management device 30 of the central management device 10 of FIGS. 1 and 2 will be described. The reservation management device 20 includes a reservation management unit 21 and an occupancy management unit 22. The reservation management unit 21 manages reservations for the rooms A to C. Specifically, the reservation management unit 21 receives a reservation from the facility reservation terminal RM based on a room information database TB21 that stores information on rooms that can be reserved.

FIG. 3 is a schematic diagram showing an example of the room information database TB21 of FIG. In the room information database TB21 of FIG. 3, the room identification number in the building, the name of the room, and whether or not the room can be reserved are stored. Then, the reservation management unit 21 in FIG. 2 extracts the room identification number (room identification information) and the room name of the room that can be reserved based on the room information database TB21, and the extracted room from the facility reservation terminal RM. Accept reservations. The room information database TB21 is set by, for example, an administrator using the setting input device 10A. The setting input device 10A includes, for example, a touch panel type input device used in combination with a keyboard, a mouse, and a display screen.

The reservation management unit 21 in FIG. 2 stores the information input to the facility reservation terminal RM in the reservation storage unit 21a as reservation information. Here, the facility reservation terminal RM receives the room identification information of the rooms A to C to be reserved, the usage time of the rooms A to C, information about the user, and the purpose of use of the rooms A to C. These pieces of information are stored as reservation information in the reservation storage unit 21a. In other words, in the reservation storage unit 21a, the user information and the purpose of use of the rooms A to C are stored for each room A to C every hour. And when the reservation room of the predetermined time transmitted from the facility reservation terminal RM overlaps with the predetermined time of the reservation room already memorize | stored in the reservation memory | storage part 21a, the fact that a reservation is not possible is transmitted to the facility reservation terminal RM. .

The occupancy management unit 22 manages the occupancy status of the rooms A to C, and stores the occupancy status of the rooms A to C based on the detection results by the entrance detection terminals 6A to 6C in the storage unit 22a. It is. The occupancy management unit 22 acquires the room information scheduled to be used from the reservation management unit 21 when the use start time of the reserved rooms A to C is reached. Then, the occupancy management unit 22 determines that the reservation is canceled if the reserved rooms A to C do not become occupying even after a predetermined period (for example, 20 minutes) from the use start time. To the reservation management unit 21 and the air conditioning management device 30. Then, the reservation management unit 21 deletes the reservation information of the room that has not been in the room from the reservation storage unit 21a.

Next, the air conditioning management device 30 will be described with reference to FIGS. 1 and 2. The air-conditioning management device 30 controls the air conditioner 2 by setting the energy saving operation mode of the reserved room according to the user information and the purpose of use of the reserved room. In particular, the air conditioning management device 30 has a function of calculating the priority RP of the reserved room according to the user information and the purpose of use, and setting the energy saving operation mode based on the calculated priority RP. Specifically, the air conditioning management device 30 includes a priority calculation unit 31, an operation mode setting unit 32, and a device control unit 33.

The priority calculation unit 31 calculates the priority RP of the reserved room according to the user information and the purpose of use. Specifically, the air conditioning management device 30 stores a user information database TB31 that stores user information and the first priority RP1 in association with each other, and a use purpose database that stores the use purpose and the second priority RP2 in association with each other. TB32. Then, the priority calculation unit 31 calculates the priority RP of the reserved room with reference to the user information database TB31 and the usage purpose database TB32 based on the user information and the usage purpose.

FIG. 4 is an example of the configuration of the user information database TB31 of FIG. In the user information database TB31 of FIG. 4, a user identification ID, a user name, and a user attribute for each user are stored in association with the first priority RP1. In FIG. 4, the attributes of the user are classified into important customers, general visitors, senior employees (president, officer), and general employees, and the first priority RP1 is set higher (larger numerical value) in this order. . Note that the user attributes in FIG. 4 are examples, and arbitrary attributes can be set according to the use environment, and the numerical value of the first priority RP1 can be set as appropriate. The user information is registered by the administrator using the setting input device 10A in advance or at the time of building reception.

FIG. 5 is an example of the purpose database TB32 of FIG. As shown in FIG. 5, the usage purpose database TB32 stores the usage purpose of the room such as the in-house general meeting and the normal office work in association with the second priority RP2.

The priority calculation unit 31 calculates the priority calculation unit 31 based on the first priority RP1 calculated based on the user information and user information database TB31 and the use purpose and use purpose database TB32. The priority RP of the reserved room is calculated by adding the second priority RP2. When a plurality of users are registered, the priority calculation unit 31 calculates the priority RP by extracting the highest first priority RP1 among the plurality of users. Note that the priority calculation unit 31 exemplifies the case where the priority RP is calculated based on both the user attribute and the purpose of use of the room, but the priority RP is calculated based on at least the purpose of use of the room. Anything to do.

The operation mode setting unit 32 sets the energy saving operation mode of each reserved room according to the priority RP calculated by the priority calculation unit 31. Specifically, the air-conditioning management device 30 has an energy saving operation database TB33 that stores the relationship between the priority RP and the energy saving level, and the operation mode setting unit 32 uses the energy saving operation database TB33 to set a reserved room. Set the energy-saving operation mode of the corresponding indoor units 4A to 4C.

FIG. 6 is a schematic diagram showing an example of the energy saving operation database TB33 of FIG. As shown in FIG. 6, the energy saving operation database TB33 stores a plurality of energy saving operation modes corresponding to the priority RP for each energy saving degree (level). This energy saving level is classified into, for example, three levels from level 1 to level 3, with energy saving level 3 having the highest energy saving performance, energy saving level 2 and energy saving level 1 decreasing in order. “OFF” means a normal state in which the energy saving mode is not set.

The setting of the energy saving levels 1 to 3 is performed by the administrator or the like in the setting input device 10A. The operation mode setting unit 32 may have a function of setting which energy saving level among the energy saving levels 1 to 3 is used for operation. For example, the operation mode setting unit 32 sets the energy saving level 3 when the number of reserved rooms in the same time period is large, and sets the energy saving level 1 when the number of reserved rooms in the same time period is small. Also good. The manager sets the energy saving level from the setting input device 10A. Although FIG. 6 illustrates the case where three energy saving levels are set, the present invention is not limited to this case, and any energy saving level of one or more may be set.

In each energy saving level 1 to 3, the energy saving operation mode is classified for each reserved room based on the priority RP. In FIG. 6, each of the energy saving levels 1 to 3 is classified into three energy saving operation modes of 20% or more of the priority RP, 20 to 30% of the priority RP, and 30% or less of the priority RP. For example, the energy saving level 3 is classified into “set temperature 28 ° C.”, “fan”, and “operation stop”, and the energy save level 2 is set to “set temperature 26 ° C.”, “set temperature 26 ° C.”, and “fan”. The energy saving level 1 is classified into “set temperature 24 ° C.”, “set temperature 26 ° C.”, and “set temperature 28 ° C.”.

The operation mode setting unit 32 sets a set temperature and the like for a plurality of rooms A to C reserved in the same time period based on the priority RP calculated by the priority calculation unit 31. Then, the device control unit 33 controls the operations of the air conditioner 2 and the indoor units 4A to 4C according to the energy saving operation mode set in the operation mode setting unit 32. Here, when the energy saving operation mode based on the energy saving levels 1 to 3 is set, the device control unit 33 performs control so as to prohibit the operation by the local remote controllers 5A to 5C installed in the rooms A to C. Thereby, it can prevent that the effect of energy-saving control is impaired by a user's operation. At this time, if the remote control 5A-5C of the room in the time zone where no reservation is made is controlled, or if the air conditioner 2 is operating during the unreserved time zone, the operation of the air conditioner 2 is stopped. Control such as enabling can be set by the administrator.

FIG. 7 is a flowchart illustrating an operation example of the air-conditioning system 1 according to Embodiment 1, and an operation example of the air-conditioning system 1 will be described with reference to FIGS. 1 to 7. First, when a user wants to use a vacant room such as a conference room (room A) in a predetermined time zone, the user inputs a reservation to the facility reservation terminal RM (step ST1). Then, in the reservation management apparatus 20 of the central management apparatus 10 from the facility reservation terminal RM, the reservation status of each room A to C is changed to the facility reservation terminal RM based on the reservation information stored in the room information database TB21 and the reservation storage unit 21a. (Step ST2).

Thereafter, the reservation status of each of the rooms A to C is displayed on the facility reservation terminal RM side, and the user uses the reservation information displayed on the facility reservation terminal RM to obtain the user information, the room to be reserved, and the use of the room. The purpose and scheduled use time are input (step ST3). The input user information, the room to be reserved, the purpose of use of the room, and the scheduled use time are transmitted from the facility reservation terminal RM to the reservation management apparatus 20. In the reservation management unit 21 of the reservation management device 20, the reservation information transmitted from the facility reservation terminal RM is analyzed, and the current reservation state stored in the reservation storage unit 21a is referred to. When there is no overlap in usage time, the reservation management unit 21 updates the reservation information of the room to be reserved in the reservation storage unit 21a. Thereafter, the fact that the reservation has been completed is transmitted from the reservation management apparatus 20 to the facility reservation terminal RM (step ST4), and the fact that the reservation has been completed is displayed on the facility reservation terminal RM (step ST5). If the room reservation is duplicated, the fact that the reservation cannot be made is transmitted to the facility reservation terminal RM.

When the room reservation is completed, the priority calculation unit 31 of the air conditioning management device 30 calculates the first priority RP1 based on the room user information and the user information database TB31. Similarly, the second priority RP2 is calculated based on the use purpose of the room and the use purpose database TB32. Then, the first priority RP1 and the second priority RP2 are added, and the priority RP of the reserved room is calculated (step ST6).

After that, the operation mode setting unit 32 sets the energy saving operation mode for each of the indoor units 4A to 4C installed in the reserved room in the use time zone based on the energy saving operation database TB33, the level setting of the energy saving mode and the priority RP. To do. Then, each of the indoor units 4A to 4C operates based on the energy saving operation mode set in the operation mode setting unit 32 under the control of the device control unit 33 (step ST7).

If the user is not in the room even after a certain period of time after the reservation has been made (step ST8), it is considered that the reservation of the target room has been canceled, and the reservation information in the reservation storage unit 21a Is updated (step ST9), and a reservation for the current time is accepted. If the reservation is changed, for example, the reservation of the room is canceled, the priority RP of the reserved room is recalculated and the control of the air conditioner 2 is reset (step ST10).

According to the above embodiment, by calculating the priority RP of the reserved room according to the purpose of use of the room and setting the energy saving operation mode, the air conditioner 2 installed in the room where the usage situation changes daily Even if it exists, since the energy saving operation mode of the air conditioner 2 can be set according to the priority RP corresponding to the purpose of use of the room, energy saving control can be performed while maintaining comfort.

In addition, when the priority calculation unit 31 has a function of calculating the priority RP of the reserved room from the attribute of the user who uses the reserved room stored in the reservation management apparatus 20 and the user information database TB31, the priority RP It is possible to perform energy-saving control while accurately calculating and maintaining comfort.

Further, the operation mode setting unit 32 stores a plurality of energy saving operation modes corresponding to the priority RP in the energy saving operation database TB33 for each degree of energy saving (level), and the operation mode setting unit 32 saves energy. When the energy saving operation mode corresponding to the priority RP of the reserved room is set, the energy saving operation mode considering power consumption such as demand control can be set.

The embodiment of the present invention is not limited to the above embodiment. For example, in FIG. 1, the case where the reservation management device 20 and the air conditioning management device 30 are built in the central management device 10 is illustrated, but the reservation management device 20 is installed as a device different from the central management device 10. It may be what was done. In this case, the user's attributes and purpose of use are transmitted as reservation information from the reservation management device 20 to the central management device 10, and the air conditioning management device 30 performs energy saving control based on the reservation information.

Moreover, although the case where the set temperature is stored as the operation mode is illustrated in the energy saving operation database TB33 of FIG. 6, other known operation modes such as the air volume may be stored. Further, FIG. 7 illustrates the case where the operation mode is reset when the reservation is canceled. However, even when the use time ends at the end of the reservation time or before the reservation time, the energy saving operation database TB33 is used. The energy saving operation mode may be reset.

1 air conditioning system, 2 air conditioner, 3 outdoor unit, 4A, 4B, 4C indoor unit, 5A, 5B, 5C local remote control, 6A, 6B, 6C entry detection terminal, 10 central management device, 10A setting input device, 20 Reservation management device, 21 reservation management unit, 21a reservation storage unit, 22 occupancy management unit, 22a storage unit, 30 air conditioning management device, 31 priority calculation unit, 32 operation mode setting unit, 33 device control unit, RM facility reservation terminal , RP priority, RP1 first priority, RP2 second priority, TB21 room information database, TB31 user information database, TB32 purpose database, TB33 energy saving operation database.

Claims

An air conditioner having a plurality of indoor units respectively installed in a plurality of rooms;
A reservation management device for acquiring room identification information of a reserved room and a purpose of use of the room and managing it as reservation information when accepting a reservation of the room;
An air conditioning management device that controls the operation of the air conditioner based on the room information stored in the reservation management device and the purpose of use of the room, and
The air conditioning management device
A priority calculating unit that calculates the priority of the reserved room based on the purpose of use of the room managed in the reservation management device;
Based on the priority of the reserved room calculated by the priority calculating unit, an operation mode setting unit that sets an energy saving operation mode of the air conditioner installed in the reserved room;
An air conditioning system comprising: a device control unit that controls the air conditioner so that the operation is performed in the energy saving operation mode set in the operation mode setting unit.
The air-conditioning management device includes a use purpose database that stores the use purpose and priority of a room in association with each other.
2. The air conditioning system according to claim 1, wherein the priority calculation unit calculates a reservation room priority stored in the reservation management apparatus and a priority of the reservation room based on the use purpose database.
The reservation management device acquires and stores user information for using a reserved room as reservation information,
The air conditioning management device includes a user information database that stores user information, user attributes and priorities in association with each other,
The said priority calculation part has a function which calculates the priority of the reservation room from the attribute of the user who uses the reservation room memorize | stored in the said reservation management apparatus, and the said user information database. Air conditioning system.
The air conditioning management device has an energy saving operation database in which energy saving operation modes are stored according to priority,
The operation mode setting unit sets an energy saving operation mode of the air conditioner installed in the reserved room based on the energy saving operation database and the priority of the reserved room. The air conditioning system according to item.
In the energy saving operation database, a plurality of energy saving operation modes corresponding to priorities are stored for each degree of energy saving,
The air conditioning system according to claim 4, wherein the operation mode setting unit is configured to select a degree of energy saving and to set an energy saving operation mode according to a priority of the reserved room.
The reservation management device is connected to a facility reservation terminal that inputs a reservation room information and a purpose of use of the room and reserves the room so that data can be transmitted,
A reservation storage unit for storing information on a reserved room input and reserved in the facility reservation terminal and a purpose of use;
The reservation management unit for transmitting information on a reservable room to the facility reservation terminal based on information on a reserved room stored in the reservation storage unit. The air conditioning system described.
The reservation management apparatus includes an occupancy management unit that manages the occupancy status of a reservation room based on a detection result of an entry detection terminal that is installed in the room and detects entry of a user of the room. The air conditioning system according to any one of 1 to 6.
The reservation management device has a function of canceling the reservation of the reserved room when the user's occupancy cannot be detected even after a predetermined period from the use start time of the reserved room in the occupancy management unit,
The air conditioning according to claim 7, wherein when the reserved room is canceled, the operation mode setting unit resets the energy-saving operation mode of the air conditioner without the canceled reserved room. system.
A central management device for controlling an air conditioner having a plurality of indoor units respectively installed in a plurality of rooms,
A reservation management device for acquiring room identification information of a reserved room and a purpose of use of the room and managing it as reservation information when accepting a reservation of the room;
An air conditioning management device that controls the operation of the air conditioner based on the room information, the user information, and the purpose of use of the room stored in the reservation management device,
The air conditioning management device
A priority calculating unit that calculates the priority of the reserved room based on the purpose of use of the room managed in the reservation management device;
Based on the priority of the reserved room calculated by the priority calculating unit, an operation mode setting unit that sets an energy saving operation mode of the air conditioner installed in the reserved room;
And a device control unit that controls the air conditioner so that the operation is performed in the energy saving operation mode set in the operation mode setting unit.