JP2001027438A - Control device for indoor electric appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save energy by reducing the wasteful consumption of electric energy. SOLUTION: This control device controls an air conditioning device 4 and illumination appliances 5 to 7 in a plurality of zones. The air conditioning device 4 is equipped with one unit of an external conditioner which air-conditions the outside air to be introduced and feeds the air to respective zones by an air feeding fan 8, air feeding dampers 19 to 21 which alter the outside air volumes being fed to respective zones from the external conditioner, air discharging dampers 22 to 24 which alter the air volumes being discharged from respective zones by an air discharging fan 26, and one unit of an air conditioner which air- conditions air in respective zones and returns the air to respective zones. A control means comprising a microcomputer 50 and a controller 60 control the opening degrees of both dampers of zones in such a manner that both dampers of zones having a seater's number 0 are totally closed, and required outside air introduction volumes for zones having a seater's number 1 or more may become values in response to the seater's numbers. Also, the microcomputer 50 and the controller 60 control the revolution numbers of both fans 10 and 26 in response to an overall outside air introduction volume obtained by the sum of required outside air introduction volumes for respective zones. By this constitution, energy and consumed power required for the cooling and heating of the outside air by the air conditioner are reduced, and the consumed power for both fans 10 and 26 is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an indoor electrical device used in a room such as an office building, a restaurant or a store, for example, a control device for an indoor electrical device for controlling an air conditioner, a lighting device and the like.

[0002]

2. Description of the Related Art Conventionally, as an air conditioner that introduces outside air while performing air conditioning in each room of an office building or the like,
For example, a carbon dioxide sensor unit, a thermal sensor unit, a variable air volume outlet (VAV), a VA
There is known a vehicle equipped with a V opening control means for introducing outside air in accordance with the concentration of carbon dioxide in each room (Japanese Patent Laid-Open No. 4-64853). In general, among the rooms of an office building, for example, in a room having a sales department, the number of occupants varies greatly, and the density of personnel in the same room is extremely different depending on the location. Also, in restaurants, many people are seated at the window table during non-peak hours,
After the peak, the number of customers drops significantly. In such office buildings and restaurants, wasteful energy, such as air conditioning and lighting, is introduced into unoccupied spaces in the same way as inhabited spaces, while introducing outside air. It is. It is strongly desired to reduce such wasteful energy consumption.

[0003]

However, in the above-mentioned prior art, by introducing outside air according to the concentration of carbon dioxide in each room, the amount of outside air according to the concentration of carbon dioxide is reduced by one.
Although it can be introduced into one room and can operate the air conditioner efficiently and economically, it only controls the total amount of outside air introduced into one room. Therefore, in one room, even in a space where there are no people or a space where there are few people, air conditioning is performed while introducing the same amount of outside air as a space where there are many people, and wasteful energy is consumed. was there. The present invention has been made in view of such a conventional problem, and an object thereof is to provide a control device for an indoor electric device that saves energy by reducing wasteful energy consumption.

[0004]

According to a first aspect of the present invention, there is provided an image forming apparatus, comprising: a plurality of rooms or a plurality of zones each including a plurality of divided areas within a room; A device for controlling the operation of an indoor electrical device, wherein the device is provided in each zone and detects seating information of the number of occupants in each zone, and seating in each zone based on information detected by the seating detecting device. Control means for detecting the number of occupants and controlling the electric equipment for each zone in accordance with the number of occupants. The control means operates the electric equipment for one or more zones where the number of occupants is one. To make the electrical equipment inactive for the zone where the number of workers is 0,
It is characterized by comprising. According to such a configuration, since the electric device is operated only in the zone where the occupant is present, useless energy consumption of operating the electric device in the zone where no occupant is present is eliminated. Therefore, wasteful energy consumption is reduced.

According to a second aspect of the present invention, the electric device includes an air conditioner for performing air conditioning of each zone while introducing outside air to each zone, and the control means controls the amount of outside air introduced to each zone. The air conditioner is controlled so as to be changed according to the number of persons. According to this configuration, when air conditioning of each zone is performed by the air conditioner while introducing outside air to each zone, an amount of outside air according to the number of occupants is introduced to each zone. At times, the wasteful energy consumption of introducing more air than necessary is reduced.

According to a third aspect of the present invention, there is provided an air conditioner comprising:
One external air conditioner that air-conditions the external air to be introduced and sends the external air to each zone by an air supply fan, and a plurality of air supply dampers that vary the amount of external air sent from the external air conditioner to each zone;
A plurality of exhaust dampers for varying the amount of air exhausted from each zone by an exhaust fan, and one air conditioner that air-conditions the air in each zone and returns the air to each zone,
Both dampers in the zone where the number of occupants is 0 are fully closed, and in the case of the zone where the number of occupants is 1 or more, both dampers of the zone are set so that the required outside air introduction amount of the zone becomes a value corresponding to the number of occupants. And the number of rotations of both fans is controlled in accordance with the total amount of outside air introduced obtained by summing up the required amount of outside air introduced into each zone. According to this configuration, the outside air is introduced only into the zone where the occupants are present, and the opening degree of both dampers is controlled so that the required amount of outside air introduced into the zone becomes a value corresponding to the number of occupants. Energy and power consumption required for cooling and heating the outside air of the air conditioner that air-conditions the air are reduced. Also,
The number of rotations of the air supply fan and exhaust fan is controlled according to the total amount of outside air introduced, which is determined by the sum of the necessary outside air introduction amounts for each zone.Therefore, the total outside air introduction amount does not increase more than necessary, and both Cools fan power consumption and outside air,
Energy required for heating is reduced. Therefore, during operation of the air conditioner, wasteful energy consumption of the air conditioners and both fans in each zone is reduced.

[0007] The invention according to claim 4 is an air conditioner,
The outside air to be introduced is air-conditioned, and this outside air is sent to the outlets of each zone through the air supply duct by the air supply fan,
One central air conditioner that returns the return air returned by the return air fan from the intake port of each zone via the return air duct to each zone in an air-conditioned manner, and an air supply damper provided at the outlet of each zone. A return air damper provided at the suction port of each zone, and the control means adjusts the opening degree of both the damper so that the supply air damper and the return air damper of the zone where the number of occupants is 0 are fully closed. And controlling the return air fan so as to reduce the rotation speed of the return air fan in accordance with the increase in the number of zones in which both dampers are fully closed, and for the zone where the number of seated persons is one or more. Controls the opening of both dampers in the same zone so that the opening of both dampers becomes a predetermined opening. According to this configuration, the air supply damper and the return air damper in the zone where the number of seated persons is 0 are completely closed, so that it is not necessary to air-condition the air in the zone where no seated person is present by the central air conditioner. Energy and power consumption required for cooling and heating the outside air of the central air conditioner are reduced. In addition, since the rotation speed of the return air fan is reduced in accordance with the increase in the number of zones where the supply air damper and the return air damper are fully closed, the power consumption of the return air fan is also reduced.

[0008] The invention according to claim 5 is an air conditioner,
A plurality of air conditioners are provided for each zone, and the outside air introduced by one outside air intake fan is sent to each zone while the air in each zone is air-conditioned and returned to each zone. The air conditioner includes a plurality of air supply dampers for varying the amount of outside air sent to the air conditioner, and a plurality of exhaust dampers for varying the amount of air discharged from each zone by the exhaust fan. The air conditioner is turned off, and both dampers in the zone are fully closed. For the zone where the number of occupants is one or more, both dampers are adjusted so that the required outside air introduction amount in the zone becomes a value corresponding to the number of occupants. And controlling the rotational speeds of both fans in accordance with the total amount of outside air introduced obtained by summing up the required amount of outside air introduced into each zone. According to such a configuration, the air conditioner in the zone where the number of occupants is 0 is turned off, and both dampers in the zone are fully closed to reduce the amount of outside air introduced into the zone to 0.
In a zone where the number of seated passengers is one or more, outside air is introduced by an amount corresponding to the number of passengers, so that unnecessary energy consumption of the air conditioner in each zone is eliminated. In addition, since the rotation speeds of both fans are controlled in accordance with the total amount of external air introduced, which is obtained from the sum of the required amount of external air introduced into each zone, the total amount of external air introduced does not increase more than necessary, and the amount of both fans There is no needless power consumption. Therefore, during operation of the air conditioner, the energy required for cooling and heating the outside air of the air conditioner in each zone and the wasteful energy consumption of both fans are reduced.

According to a sixth aspect of the present invention, the electric device includes a lighting device installed in each zone in addition to the air conditioner, and the control means turns on the lighting device in the zone where the number of seated persons is one or more. The lighting equipment in the zone where the number of occupants is 0 is turned off. According to such a configuration, in addition to reducing wasteful energy consumption during operation of the air conditioner, the lighting device is turned on only for the zone where the occupant is present, so that the lighting device also uses unnecessary electric energy. Consumption is reduced.

According to a seventh aspect of the present invention, the electric device includes a lighting device installed in each zone, and the control means turns on the lighting device in the zone where the number of occupants is one or more and the number of occupants is zero. The lighting equipment in the zone is turned off. According to this configuration, since the lighting device is turned on only for the zone where the occupant is present, there is no needless power consumption of turning on the lighting device for the zone where no occupant is present. Therefore, wasteful consumption of electric energy is reduced.

In the invention according to claim 8, the seating detecting means provided in each zone is installed on a desk or table in each zone, and outputs a signal according to seating or leaving.
It is characterized by comprising the above-mentioned seating sensor.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing an example of an embodiment of a control device for indoor electrical equipment according to the present invention, and FIG. 2 is a schematic configuration diagram showing an air conditioner controlled by the control device. The indoor electric device control device shown in FIG. 1 is used for each of a plurality of rooms such as an office building, a restaurant, and a store, or a plurality of zones including a plurality of divided areas in one room. Control the operation of electrical equipment. In this example, there are N zones of the first zone 1, the second zone 2,... The Nth zone 3 shown in FIG. 2 and FIG.
As the indoor electrical equipment used for 3, the central type air conditioner 4 (see FIG. 2) and the lighting equipment installed in each zone are controlled. The lighting fixtures are No. 1 lighting fixtures 5, No. 2 lighting fixtures 6,.
.. N or N sets of No. N lighting fixtures 7 are included.

As shown in FIG. 2, the central type air conditioner 4 performs air conditioning in each zone while introducing outside air into each of the zones 1, 2,. Air conditioning processing such as dust removal, temperature control, humidification, and the like, and one air conditioner (outdoor air processing air conditioner) 9 for sending the air-conditioned outside air to each zone by an air supply fan 8, and air from each zone. One air conditioner (indoor load processing air conditioner) 11 that air-conditions (return air) and returns it to each zone by the circulation fan 10.

The outside air conditioner 9 includes, in addition to the air supply fan 8, a pre-filter 13, a neutral filter 14, a cooling coil 15, a heating coil 15, and a pre-filter 13, which are sequentially incorporated in the direction of the outside air introduced through the outside air introduction duct 12. A coil 16 and a humidifier 17 are provided. In the outside air conditioner 9, dust and the like in the outside air to be introduced are removed by the filters 13 and 14, and the outside air is cooled by heat exchange with cold water flowing through the cooling coil 15, and hot water flowing through the heating coil 16 is removed. The temperature control process of warming the outside air by the heat exchange of the above and the humidification process by the humidifier 17 are performed. The outside air that has been air-conditioned by the outside air conditioner 9 passes through the outside air supply duct 18 by the supply fan 8 to each of the zones 1, 2, and 2.
.., N are supplied to the outlets of No. 3 and provided at the respective outlets.
The air is introduced into each zone at a flow rate corresponding to the opening degree of the number-supply damper 21. The exhaust from each of the zones 1, 2,..., 3 is provided by the first exhaust dampers 22, 2 provided at the suction port of each zone.
.. Are exhausted by the exhaust fan 26 via the N number of exhaust dampers 23,. No. 1 air supply damper 19 and No. 1 exhaust damper 22, No. 2 air supply damper 20 and No. 2 exhaust damper 23,... No. N air supply damper 21 and No. N exhaust damper 24
The opening is variably controlled in conjunction with each other so that the opening of both dampers substantially match.

That is, the air supply dampers 19, 20,...
The opening degree of each of the exhaust valves 21 and the exhaust dampers 22, 23,... 24 is variably controlled in a plurality of stages or continuously according to the number of occupants. For example, air supply dampers 19, 20,.
21 and the exhaust dampers 22, 23,..., 24 have opening degrees T0, T20, T40, T60, T80 and T1, respectively.
00 is variably controlled in six stages. Here, the opening degree T0 is 0
% Air volume (fully closed), T20 is 20% air volume, T40 is 4
0% air volume, T100 is 100% air volume (fully open)
It is. The fan motors of the air supply fan 8 and the exhaust fan 26 are driven at a rotation speed (inverter control) according to the frequency by changing the frequency of the drive signal by the inverter. .

The air conditioner 11 is also a packaged air conditioner. In addition to the circulation fan 10, the air conditioner 11 is incorporated in the direction of air (return air) returned from each zone through the return air duct 27 by the circulation fan. Pre-filter 28,
Neutral filter 29, cooling coil 30, and heating coil 3
1 is provided. In the air conditioner 11, the dust and the like in the return air are removed by the two filters 28 and 29, and the return air is cooled by heat exchange with the cold water flowing through the cooling coil 30 or the hot water flowing through the heating coil 31 is cooled. And heat control to heat the return air. The air supply air-conditioned by the air conditioner 11 is supplied to the air supply duct 32 by the circulation fan 10.
Through each of the zones 1, 2, ... 3
The air supply dampers 33, 34,.
··· Returns to each zone with the air flow according to the opening of 35. Further, return air dampers 36, 37,... 38 for returning the air in each zone to the air conditioner 11 are provided at the suction port of each zone. The air supply damper 33 and the return air damper 36 in the first zone 1, the air supply damper 34 and the return air damper 37 in the second zone 2,... The openings are variably controlled in conjunction with each other so that the opening of the damper becomes a value corresponding to the heat load of each zone, the set temperature, and the like. The fan motor of the air supply fan 10 is driven at a rotation speed corresponding to the frequency by changing the frequency of the drive signal by an inverter. The air supply fan 10 of the air conditioner 11
, And the supply air dampers 33, 34,... 35 and the return air dampers 36, 37,.

Further, as shown in FIG. 1, the control device for the indoor electric equipment of this embodiment is provided in each of the zones 1, 2,... 3, and detects the information on the number of occupants in each zone. 43, and the number of occupants in each zone is detected based on information detected by each of the occupant detection means, and the electric power for each zone is determined in accordance with the detected number of occupants. Control means for controlling the device.

Each of the seating detecting means 41, 42,... 43
Are one or more (five in this example) seating sensors that are installed on desks or tables in each of the zones 1, 2,... 3 and that output on and off signals in accordance with seating and leaving. It is composed of For example, in zone 1
As shown in FIGS. 3 and 5, seating sensors 41 a to 41 e are respectively installed at predetermined locations (for example, right corners) on the five desks 44. Similarly, 5 in zone 2
The seating sensors 42a to 42e are respectively installed at predetermined positions on the individual desks 44, and five desks 4
The seating sensors 43a to 43e are respectively installed at predetermined locations on the upper side 4. Then, each of the seating sensors 41a to 41
e, 42a to 42e, 43a to 43e are constituted by, for example, infrared sensors, and output a seating signal (for example, an ON signal) when there is a seated person, and a leaving signal (for example, an OFF signal) when the seated person leaves. Is output. In this manner, in each of the zones 1, 2,..., One occupant or a vacant person at each desk 44 is detected by one occupancy sensor. That is, there is a one-to-one relationship between each seating sensor and the person detected by the sensor. As a modified example of this example, when a plurality of people are seated on one table such as a table in a restaurant or the like, as shown in FIG. The determination may be made by one seating sensor 46.

The control means includes a microcomputer 5
0 and instructions from the microcomputer 50, the rotation speeds of the air supply fan 8, the exhaust fan 26, and the circulation fan 10, the air supply dampers 19, 20,..., And the exhaust dampers 22, 23,. , The opening degree of the supply air dampers 33 to 35 and the return air dampers 36 to 38, the lighting fixtures 5, 6,.
.. Comprises a controller 60 for controlling lighting (on), turning off (off), etc. of 7.

The microcomputer 50 has a CPU (Ce
ntral Processing Unit) 51 and RAM (Random Acce
ss Memory) 52 and ROM (Read Only Memory) 53
It is composed of The CPU 51 has an input port 54
Sensors 41a-41e, 42a in each zone via
To 42e and 43a to 43e are connected to the controller 60 via the output port 55. The RAM 52 has a data area for storing various data and a work area used for various processing operations.
The ROM 53 stores a control program for causing the CPU 51 to perform various processing operations.

CPU 51 of microcomputer 50
Is calculated by counting the number of seating sensors that output an ON signal among the five seating sensors in each of the zones 1, 2,... 3 for each zone with a preset zone number.
The number of occupants in each zone is detected. That is, among the seating sensors 41a to 41e in the first zone 1, the number of seating sensors that output an ON signal is counted to detect the number of seated persons in the same zone. For example, as shown in zone 1 in FIG.
When there are occupants at all of the desks 44, ON signals are output from all the seat sensors 41a to 41e. It is detected that the number of occupants is “5”.

For a zone where the number of occupants is 0, the CPU 51 sets the outside air introduction amount of the corresponding zone to 0 and turns off the lighting fixtures of the corresponding one of the lighting fixtures 5, 6,. At the same time, for a zone where the number of seated persons is one or more, the air conditioner 4 is controlled so that the outside air introduction amount of the corresponding zone is changed according to the number of seated persons. Specifically, for a zone where the number of occupants is 0, the CPU 51 determines that the air supply dampers and the exhaust dampers 22, 2 of the corresponding air supply dampers 19, 20,.
24, an opening control signal for setting each opening with the exhaust damper in the same zone to the opening T0 (fully closed), and a lighting control signal for turning off the lighting equipment in the corresponding zone. Output to the controller 60. Further, for a zone where the number of occupants is one or more, the CPU 51 calculates the required outside air introduction amount of each corresponding zone according to the number of occupants, and calculates the opening degree corresponding to the calculated required outside air amount of each zone. 24, the opening degree control signal for controlling the opening degree of the damper of the corresponding zone among the supply air dampers 19 to 21 and the opening degree of the damper of the same zone among the exhaust dampers 22, 23,. Output to In this example, each of the dampers 19, 20,.
The opening degrees of 21 and 22, 23,... 24 are set to the opening degree T20 when the number of occupants is one, to the opening degree T40 when the number is two, and to the opening degree T60 when the number is three. When the number is 4, the opening is T80, and when the number is 5, the opening is T100. Also, CP
U51 calculates the total amount of outside air introduced from the sum of the required amount of outside air introduced into each zone, and controls the air supply fan 8 by using an inverter so that the air supply fan 8 is rotated at a rotation speed at which the entire outside air introduction amount is obtained. Control. That is, when the CPU 51 outputs to the controller 60 a rotation speed control signal corresponding to the obtained outside air introduction amount, a drive signal having a frequency corresponding to the control signal is output from the controller 60 to the air supply fan 8. It has become.

Next, the operation of this embodiment having the above configuration will be described. First, the seating sensors 4 of each zone 1, 2,.
1a to 41e, 42a to 42e,... 43a to 43e
A seating signal or a leaving signal is input to the CPU 51 from (step S1). Zone numbers are set in the signals of the seating sensors so that the zone to which the signal belongs can be determined from the input position of each signal. Therefore, the CPU 51 counts the number of occupants for each zone by counting the number of occupant signals (the number of occupant sensors outputting the occupant signal) by zone number (step S).
2). For example, in the case shown in FIG. 5, there are seats in all seats in zone 1 and seating signals are output from all seating sensors 41a to 41e in zone 1, so the number of seating signals is Is counted, it is detected that the number of occupants in the same zone 1 is “5”. Similarly, 2
In the second zone, all the members are away, and all the seating sensors 42a to 42e in the second zone output a leaving signal. Therefore, it is detected that the number of occupants in the second zone is "0". In addition, in the N-th zone 3, two people are seated, and seating signals are output from the seating sensors 43a and 43d. By counting these two seating signals, the occupants in the zone 3 are counted. It is detected that the number is "2".

Next, the process proceeds to step S3, where it is determined whether or not there is a zone where the number of occupants is zero. When there is no zone where the number of occupants is 0, the external conditioner 9 and the air conditioner 11 are set to the operating state (ON), and the lighting fixtures 5, 6, and 6 of all the zones are set.
.. Are turned on (ON) (step S10). Thereafter, in all the zones, the required outside air introduction amount of each zone is calculated according to the number of occupants (step S11), and based on the calculated required outside air introduction amount of each zone, the air supply damper 1 of each zone is calculated.
, 21 and exhaust dampers 22, 23, ...
24, and controls the air supply damper and the exhaust damper so that the calculated opening degree is obtained (Step S).
7). In this example, the opening of each of the dampers 19, 20,... 21 and 22, 23,. In the zone of the opening, the opening is T40. In the zone of the same number, the opening is T60.
In the case of the same number of zones, the opening degree is set to T80, and in the case of the same number of zones, the opening degree is set to T100. by this,
In each zone, the outside air with the air volume according to the number of seated
Is air-conditioned and introduced. Thereafter, the process proceeds to step S8, and the sum of the required outside air introduction amounts of the respective zones calculated in step S7 (that is, the total number of occupants in all the zones ×
Based on the required outside air introduction amount for one person), the entire outside air introduction amount is calculated (step S8). Next, the rotational speeds of the air supply fan 8 and the exhaust fan 26 are calculated from the calculated values, and both the fans 8 and 26 are rotated at the rotational speeds.
26 (step S9). As a result, the air supply fan 8 introduces outside air having an air volume corresponding to the total number of occupants, and the exhaust fan 26 exhausts substantially the same amount of air as the external air volume.

If there is a zone where the number of occupants is 0, the process proceeds to step S4, and it is determined whether or not all zones have the number of occupants of 0. When the number of occupants is zero in all zones, the external air conditioner 9 and the air conditioner 11 are stopped, the air supply fan 8 and the exhaust fan 26 are stopped, and the air supply dampers 19, 20,.
24 and the exhaust dampers 22, 23,... 24 are set to T0 (fully closed).
Is turned off (step S12).

On the other hand, if there is a zone where the number of occupants is 0 and all the zones do not have the number of occupants, the process proceeds to step S5, where the external air conditioner 9 and the air conditioner 11 are operated (on), and 21 of the air supply dampers 19, 20,... 21 and the exhaust dampers 22, 23,.
24, the dampers in the same zone are fully closed, and among the lighting fixtures 5 to 7, those in the zone where the number of occupants is 0 are turned off,
Furthermore, the lighting equipment of each zone where the number of seated persons is one or more is turned on. Next, in step S6, in each zone where the number of occupants is one or more, the required outside air introduction amount of each zone is calculated in accordance with the number of occupants (step S6), and the above steps S7, S8 and S9 are further performed. Execute. As a result, outside air having an air volume corresponding to the total number of occupants is introduced by the air supply fan 8, and substantially the same amount of air as the outside air is exhausted by the exhaust fan 26. In each zone, the number of occupants is reduced. The outside air having the corresponding air volume is air-conditioned by the external air conditioner 8 and introduced.

If there is a change in the number of occupants in any of the zones 1, 2,.
When all the five persons are seated, as in zone 1 shown in FIG. 5, when the person at the 1-1 desk 44 leaves the seat, the signal of the seat sensor 41a changes from the seat signal to the seat signal. , The number of occupants in the same zone 1 counted in step S2 becomes “4”. Here, since the number of occupants in the same zone 1 is decreased by 1 from the previous value (5), the first zone 1
The opening degree of the supply damper 19 and the exhaust damper 22 is set to the opening degree T1.
Change from 00 to the opening degree T80. As a result, the amount of outside air introduced into the zone 1 is reduced by one person. At this time,
The number of rotations of the air supply fan 8 and the exhaust fan 26 is reduced by an amount corresponding to the required amount of outside air introduced in the zone 1 by one person, thereby reducing the whole amount of outside air introduced. In addition, when the absence in a certain zone is detected, a predetermined time (for example, 1
0 minutes), and only when the unattended person does not return to his / her seat after the elapse of the predetermined time, the two dampers of the same zone, for example, the supply damper 19 and the exhaust damper 22 of the first zone 1 The opening is reduced according to the number of departures, and the rotation speeds of the air supply fan 8 and the exhaust fan 26 are reduced. In this way, when the unattended person returns within a predetermined time after leaving the seat, the outside air amount in the zone does not need to be changed, and the rotation speeds of the air supply fan 8 and the exhaust fan 26 are reduced. Since it is not necessary to change the air conditioning, more comfortable air conditioning control is performed. When the number of occupants increases in a certain zone, for example, when there are occupants at the N-2 and N-3 desks 44 in the N-th zone 3 shown in FIG. Changes from the unseat signal to the seat signal, and the number of occupants in the same zone 3 counted in step S2 becomes “4”. As a result, the number of occupants in the same zone 1 becomes 2 from the previous value “2”.
Therefore, in step S7, the opening degrees of the air supply damper 21 and the exhaust damper 24 in the N-th zone 1 are changed to the opening degree T40.
To the opening degree T80. By this, the same zone 3
The amount of outside air to be introduced to is increased by two people. At this time, the number of rotations of the air supply fan 8 and the exhaust fan 26 is increased by an amount corresponding to an increase in the required outside air introduction amount in the zone 3 for two persons, thereby increasing the entire outside air introduction amount.

As described above, according to the control apparatus for an indoor electric device according to the present embodiment, the following operation and effect can be obtained. (1) When there is a zone where the number of occupants is 0, the outside air introduction amount of the corresponding zone is set to 0, and the air volume (total air volume) obtained by summing up the necessary outside air introduction amount of each zone calculated according to the number of occupants The number of rotations of the air supply fan 8 is controlled so that the external air (introduction amount of outside air) is introduced by the air supply fan 8 of the external air quantity machine 9. Further, only in each zone where the number of occupants is one or more, an amount of outside air (necessary outside air introduction amount) corresponding to the number of occupants in each zone is introduced. That is, outside air is introduced only into the zone where the occupants are present, and the required amount of outside air introduced into the zone is set to a value corresponding to the number of occupants. For this reason, outside air is not introduced into a zone where no one is present, or an unnecessary amount of outside air is not introduced, and wasteful power consumption of the air supply fan 8 required for introducing the outside air is reduced. The exhaust fan 26 also
Since the number of revolutions is controlled to discharge substantially the same amount of air as the amount of outside air introduced by the air supply fan 8, the air is not exhausted more than necessary, and wasteful consumption of the exhaust fan 26 required for the exhaust is prevented. Power is also reduced. In addition, since the required amount of outside air is introduced into each zone according to the number of seated people,
The energy consumption required for one air conditioner 11 to air-condition the return air from each of the zones 1, 2, ... 3 is reduced. Therefore, wasteful energy consumption during operation of the central type air conditioner 4 can be reduced to save energy. (2) When there is a zone where the number of occupants is 0, lighting equipment 5 to 7
Of the corresponding zone is turned off, so that unnecessary power consumption of turning on the lighting equipment in a zone where no one is present is reduced. Therefore, for lighting equipment,
Energy can be saved by reducing wasteful consumption of electric energy.

Next, a modified example of the control device for an indoor electrical device according to the above example will be described with reference to FIG. The control device according to this modification is the control device according to the above example,
A central type air conditioner 4A shown in FIG. 6 is controlled instead of the central type air conditioner 4 shown in FIG. 2, and the other points are the same as those of the control device according to the above example. In addition, the same reference numerals are given to the same members as those in the above-described example, and the repeated description will be omitted.

The air conditioner 4A in this modification is
As shown in FIG. 6, the outside air introduced through the outside air introduction duct 12A is air-conditioned and the outside air is supplied by the air supply fan 10 to the outlets of the zones 1, 2,... 3 through the air supply duct 32A. One central air conditioner 11 which returns the return air returned from the return air fan 26A from the suction port of each zone via the return air duct 27A to the respective zones through air conditioning.
A, and air supply dampers 33 provided at the outlets of each zone,
35, and return air dampers 36, 37,... 37 provided at the suction ports of the respective zones. A part of the return air returned from the inlet of each zone by the return air fan 26A via the return air duct 27A is
Exhausted through A.

The control means including the microcomputer 50 and the controller 60 is provided with the air supply dampers 33 and 3.
, 37, the exhaust dampers in the same zone among the return air dampers 36, 37,... 37 are fully closed. The opening degree is controlled, and the return air fan 26A is controlled so as to decrease the rotation speed of the return air fan 26A in accordance with the increase in the number of zones in which both dampers are fully closed. Further, the control means controls the opening of both dampers in a zone where the number of occupants is one or more so that the opening of both dampers in the zone is constant (for example, fully open). Has become. Further, the control means includes the lighting devices 5, 6,.
7 is controlled in the same manner as in the above example.

According to this modification, the supply air dampers 33, 3
Of the air intake dampers in the zones where the number of seated passengers is 0 among the air intake dampers and the return air dampers 36, 37,. Is set to 0, and the return air amount returned from the zone to the central air conditioner 11A is set to 0. Therefore, it is not necessary to air-condition the air in the zone where no seated person is present in the central air conditioner 11A, and the energy consumption of the central air conditioner 11A is reduced accordingly. Further, since the rotation speed of the return air fan 26A is reduced in accordance with the increase in the number of zones in which the supply air damper and the return air damper are fully closed, the power consumption of the return air fan 26A is also reduced. Therefore, when performing central air conditioning control using the central air conditioner 11A, it is possible to reduce wasteful energy consumption and save energy. Also, as in the case of the above example, if there is a zone where the number of occupants is 0, the corresponding one of the lighting devices 5 to 7 is turned off, so that the lighting device is turned on in a zone where no people are present. Wasted power consumption is reduced. Therefore, also for the lighting equipment, it is possible to reduce energy consumption by reducing wasteful consumption of electric energy.

Next, another example of the embodiment of the control device for the indoor electric equipment according to the present invention will be described with reference to FIGS. In the description of this example, the same members as those of the above-described example shown in FIGS. 1 and 2 are denoted by the same reference numerals, and the repeated description will be omitted. In the control device of the indoor electric device according to the present example, as the indoor electric device used for the plurality of zones 1, 2,..., The individual-type air conditioner 4B and the lighting fixture 5 installed in each zone are used. , 6,... 7 are controlled.

The air conditioner 4B is, as shown in FIG.
A plurality of air conditioners are provided for each of zones 1, 2,... 3 and return the air in each zone to the respective zones while sending the outside air introduced by one outside air intake fan 70 to the respective zones. 73, a plurality of air supply dampers 19A, 20A,... 21A for varying the amount of outside air sent to each air conditioner by an outside air intake fan 70, and an exhaust fan 26 from each zone. There are a plurality of exhaust dampers 22A, 23A,... 24A for varying the amount of air to be exhausted. The air conditioners 71, 72, ... 73 are packaged air conditioners. The air conditioners 71, 72, ... 73 are introduced by the outside air intake fan 70, and the outside air introduction duct 12B and the air supply dampers 19A, 20A, ...
··· Perform air-conditioning processing such as dust removal processing, temperature control processing, and humidification processing on the outside air sent via 21A. At the same time, each of the air conditioners 71, 72,... 73 performs the dust removal process for removing dust and the like in the air (return air) returned through the return air duct 27B from the suction port of each zone, and the return process. The above-mentioned temperature adjustment processing for cooling or warming the air is performed. The return air that has been air-conditioned by each air conditioner 11 passes through the air supply duct 32 by the air supply fan 10 to each of the zones 1, 2,.
3 sent to the outlet. In addition, each zone 1, 2, ...
Part of the air of 3 is discharged by the exhaust fan 26 via the exhaust duct 25B, the exhaust dampers 22A, 23A,... 24A, and the exhaust duct 25C, respectively.

In the present embodiment, each of the seating detecting means 4
, 43 are constituted by eight seating sensors installed in the same manner as in the above example on eight desks 44 in each of the zones 1, 2,. That is, 1
Eight seating sensors 41a to 41h are located in
Eight seating sensors 42a to 42h are also located in zone 1 and eight seating sensors 43a to 43 are also located in zone N3.
h are respectively set on the desk 44 (see FIG. 7).

The control means comprising the microcomputer 50 and the controller 60 comprises air conditioners 71, 72,.
.. among 73, the air conditioner in the zone where the number of seated passengers is 0 is stopped (turned off), the air supply damper and the exhaust damper in the zone are fully closed, and for the zone where the number of seated passengers is 1 or more, Each opening degree of the air supply damper and the exhaust damper is controlled so that the required amount of outside air introduced into the zone becomes a value corresponding to the number of occupants. Further, the control means controls the rotation speeds of the outside air intake fan 70 and the exhaust fan 26 according to the total outside air introduction amount obtained from the sum of the necessary outside air introduction amounts of the respective zones. And
The opening degree of each of the air supply dampers 19A, 20A,... 21A and the exhaust dampers 22A, 23A,. For example, in this example, each zone 1, 2,.
Since up to a person can be seated (see FIG. 8), the air supply damper 19 is provided.
A, 20A,... 21A and exhaust dampers 22A, 23
A,... 24A each have an opening degree T0, T10, T2.
0, T30, T40, T50, T60, T70 and T
The variable control is performed in nine steps of 100. Here, the opening degree T0 is 0% air volume (fully closed), and T10 is 12%.
, T20 is a 24% air volume, T30 is a 36% air volume, T40 is a 48% air volume, T50 is a 60% air volume, T
60 is 72% air volume, T70 is 84% air volume, and T
100 is a 100% air volume (fully open). Each of the dampers has an opening T0 in a zone where the number of occupants is 0, an opening T10 in a zone where the number of seats is 1, an opening T30 in a zone where the number of seats is 2 and so on in a zone where the number of seats is 7. Opening T70
And the control means controls the opening degree T100 in the eight equal zones.

Next, the operation of the control device for the indoor electric device according to another example having the above-described configuration will be described with reference to FIG.
First, the seating sensors 41a to 41c of the zones 1, 2,.
41h, 42a to 42h, ..., 43a to 43h to C
A seating signal or a leaving signal is input to the PU 51 (step S21). The zone number is set in the signal of each seat sensor in the same manner as in the above example. Therefore, the CPU 51
Calculates the number of seated persons for each zone by counting the number of seated signals (the number of seated sensors outputting seated signals) by zone number (step S22). For example, when there are seats in all seats in zone 1 shown in FIG. 8, all seat sensors 41a to 41
Since the seating signals are output from h, counting the number of these seating signals detects that the number of seated persons in the zone 1 is “8”. Similarly, 2 shown in FIG.
If everyone is away from the second zone, the second zone
Are output from all the seating sensors 42a to 42h, it is detected that the number of seated persons in the zone 2 is "0". When two persons are seated in the N-th zone 3 shown in the same figure, the seating signals are output from the sensors of the two seats where the seated person is present among the seating sensors 43a to 43h. By counting the seating signals,
It is detected that the number of occupants in the same zone 3 is “2”.

Next, the process proceeds to step S23, where the number of occupants is 0.
It is determined whether or not a zone exists. If there is no zone with no seated passengers, the air conditioners 71, 72,... 73 of all the zones 1, 2,. , 7 are turned on (step S30). Thereafter, in all the zones, the required outside air introduction amount of each zone is calculated according to the number of seated persons (step S31), and the air supply dampers 19A, 20 of each zone are calculated from the calculated necessary outside air introduction amount of each zone.
A,... 21A and exhaust dampers 22A, 23A,.
24A is calculated, and each air supply damper and each exhaust damper are controlled so as to have the calculated opening (Step S).
27). In this example, both dampers 19A, 20A,.
The opening degrees of 1A and 22A, 23A,... 24A are, as described above, the opening degree T10 in the zone where the number of occupants is one, the opening degree T20 in the zone where the number is two, and the opening degree T20 in the zone where the number is three. In the opening T30, in the zone of the same number 4 in the opening T40,
In the zone with the same number 5, the opening degree T50, in the zone with the same number 6, the opening degree T60, and in the zone with the same number 7, the opening degree T70.
The opening degree T100 is set for the zone having the same number of eight. As a result, outside air having an air volume corresponding to the number of seated passengers is air-conditioned by the external air conditioner 8 and introduced into each zone. Thereafter, the process proceeds to step S28, and the total outside air introduction amount is calculated based on the sum of the required outside air introduction amounts of the respective zones calculated in step S27. Next, the rotation speeds of the outside air intake fan 70 and the exhaust fan 26 are calculated from the calculated values, and the two fans 70, 26 are rotated at this rotation speed.
26 is controlled (step S29). As a result, the outside air intake fan 70 introduces outside air having an air volume corresponding to the total number of seated persons, and the exhaust fan 26 exhausts substantially the same amount of air as the outside air amount.

If there is a zone where the number of occupants is zero, the process proceeds to step S24, and it is determined whether or not all zones have zero occupants. When the number of occupants is zero in all zones, the air conditioners 71, 72,... 73 in all zones are stopped, the outside air intake fan 70 and the exhaust fan 26 are stopped, and the air supply dampers 19 in all zones are stopped. , 20,... 21 and the exhaust damper 22,
24 are set to T0 (fully closed), and the luminaires 5 to 7 in all the zones are turned off (step S32).

On the other hand, if there is a zone where the number of occupants is 0 and not all the zones have the number of occupants 0, the process proceeds to step S25 and the number of occupants of the air conditioners 71, 72,. The air conditioner in the zone is stopped (turned off) and the lighting fixtures in the same zone among the lighting fixtures 5, 6,... 7 are turned off (turned on), and the air supply dampers 19, 20,.
1, the intake and exhaust dampers 22 and 2 in the same zone
Among 3, 3, 24, the exhaust dampers in the same zone are fully closed. Furthermore, the lighting equipment of each zone where the number of seated persons is one or more is turned on. Next, in step S26, in each zone where the number of occupants is one or more, the required outside air introduction amount of each zone is calculated in accordance with the number of occupants (step S26), and the above steps S27, S28 and S29 are further performed. Execute. As a result, the outside air intake fan 70 introduces outside air having an air volume corresponding to the total number of seated persons, and the same amount of air as the outside air is exhausted by the exhaust fan 26. Dampers 19A, 20A, ... 21A
73 is air-conditioned by the air conditioners 71, 72,... 73 and introduced.

If there is a change in the number of occupants in any one of zones 1, 2,..., For example, zone 1 shown in FIG.
The opening degrees of the supply air damper 19A and the exhaust damper 22A are increased or decreased according to the fluctuation. For example, when the number of occupants is eight in the same zone 1, when one person leaves the seat, the opening of both dampers 19A and 22A is changed from the opening T100 to the opening T70.
Change to As a result, the amount of outside air introduced into the zone 1 is reduced by one person. At this time, in step 28, the number of rotations of the outside air intake fan 70 and the exhaust fan 26 is reduced by an amount corresponding to the required outside air introduction amount in the zone 1 reduced by one person, thereby reducing the entire outside air introduction amount.

When the number of occupants increases in a certain zone,
For example, when two people are seated in the Nth zone 3 shown in FIG.
The opening degrees of 0A and 23A are changed from the opening degree T20 to the opening degree T40. Thereby, the amount of outside air introduced into the zone 3 is increased by two people. At this time, in step 28,
The number of rotations of the outside air intake fan 70 and the exhaust fan 26 is increased by an amount corresponding to the increase in the required outside air introduction amount in the zone 3 for two persons, thereby increasing the entire outside air introduction amount.

As described above, according to the control device for the indoor electric device according to the present embodiment, the following operation and effect can be obtained as in the case of the above-described example. (1) The outside air is introduced only into the zone where the occupants are present, and the required amount of outside air introduced into the zone is set to a value corresponding to the number of occupants. For this reason, the outside air is not introduced into the zone where no one is present, or an unnecessary amount of outside air is not introduced, and the unnecessary power consumption of the outside air intake fan 70 required for introducing the outside air is reduced. The exhaust fan 26 is also the outside air intake fan 7.
Since the number of rotations is controlled so that the same amount of air as the introduced outside air is exhausted by zero, the unnecessary amount of air is not exhausted, and wasteful power consumption of the exhaust fan 26 required for this exhaust is also reduced. Is done. In addition, since a required amount of outside air is introduced into each zone according to the number of seated persons, each air conditioner 7
The cooling and heating energy required for 1, 72,... 73 to air-condition the return air from each zone is reduced.
Therefore, it is possible to reduce wasteful energy consumption during operation of the individual-type air conditioner 4B and save energy.

(2) When there is a zone where the number of occupants is 0, the corresponding one of the luminaires 5 to 7 is turned off, so that the luminaire is turned on in a zone where no person is present, which wastes power consumption. Is reduced. Therefore, also for the lighting equipment, it is possible to reduce energy consumption by reducing wasteful consumption of electric energy.

In the above example shown in FIGS. 1 and 2, the modified example shown in FIG. 6, and the other examples shown in FIGS. 7 and 8, the seating detecting means 41 of each zone 1, 2,. , 4
Instead of using a plurality of seating sensors for 2, 3,... 43, video cameras installed in each zone, and images of the vicinity of tables and desks are taken by the cameras, and the image signals are used to recognize persons by image processing. And an image processing means for detecting the number of occupants. In the case of this configuration, the same operation and effect as in the above-described examples can be obtained.

In the above example shown in FIGS. 1 and 2, the external conditioner 9 and the air conditioner 11 are not limited to those using cold water and hot water as heat sources as shown in FIG. As the air conditioner 11, another type of air conditioner, for example, a so-called heat pump air conditioner may be used.

[0047]

As described above, according to the first aspect of the present invention, it is possible to reduce wasteful energy consumption and save energy.

According to the second aspect of the present invention, it is possible to reduce wasteful energy consumption of introducing an unnecessary amount of outside air during operation of the air conditioner.

According to the third aspect of the invention, it is possible to reduce the energy required for cooling and heating the outside air of the air conditioner in each zone and the wasteful energy consumption of both fans during the operation of the air conditioner.

According to the fourth aspect of the present invention, during operation of the air conditioner, energy and power consumption required for cooling and heating the outside air of the central air conditioner can be reduced, and power consumption of the return air fan can be reduced.

According to the fifth aspect of the invention, when the air conditioner is operating, it is possible to reduce the energy required for cooling and heating the outside air of the air conditioner in each zone and the wasteful energy consumption of both fans.

According to the sixth aspect of the present invention, it is possible to reduce unnecessary energy consumption during operation of the air conditioner, and also to reduce unnecessary energy consumption of lighting equipment.

According to the seventh aspect of the present invention, unnecessary power consumption for turning on the lighting equipment in a zone where no occupant is present is eliminated, and wasteful energy consumption of the lighting equipment can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a control device for an indoor electrical device according to an example of an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing an air conditioner controlled by the control device shown in FIG. 1;

FIG. 3 is an explanatory view showing one of seating sensors used in the control device shown in FIG. 1;

FIG. 4 is a flowchart showing the operation of the control device shown in FIG. 1;

FIG. 5 is a schematic plan view showing a plurality of zones in which the control device shown in FIG. 1 is used.

FIG. 6 is a schematic configuration diagram showing an air conditioner controlled by a modified example of the control device shown in FIG. 1;

FIG. 7 is a block diagram showing a control device for indoor electrical equipment according to another example of an embodiment of the present invention.

FIG. 8 is a schematic configuration diagram showing an air conditioner controlled by the control device shown in FIG. 7;

9 is a flowchart showing the operation of the control device shown in FIG.

FIG. 10 is an explanatory view showing a modification of the seating sensor shown in FIG. 3;

[Explanation of symbols]

1, 2, ... 3 Zone 5, 6, ... 7 Lighting equipment 4, 4A, 4B Air conditioner 8, 10 Air supply fan 9 Outside air conditioner 11 Air conditioner 11A Central air conditioner 19, 20, ... .. 21A air supply dampers 19A, 20A,... 21A air supply dampers 22, 23,... 24 exhaust air dampers 22A, 23A,... 24A exhaust air dampers 26 exhaust fans 26A return air fans 27, 27A return air ducts 32 , 32A, 32B Air supply ducts 33, 34, ... 35 Air supply dampers 36, 37, ... 38 Exhaust dampers 41, 42, ... 43 Seating detection means 41a to 41h, 42a to 42h, 43a to 43h
Seat sensor 50 Microcomputer (control means) 60 Controller (control means) 70 Outside air intake fan 71, 72, ... 73 Air conditioner

Claims (8)

[Claims] 1. An apparatus for controlling the operation of an indoor electrical device used for each of a plurality of rooms or a plurality of zones each including a plurality of divided areas in one room, A seat detection means for detecting information on the number of occupants in each zone, and a number of occupants in each zone based on information detected by the occupancy detection means. Control means for controlling an electric device, wherein the control means operates the electric device for the zone where the number of seated persons is one or more, and disables the electric device for the zone where the number of seated persons is zero. A control device for an indoor electrical device, wherein 2. The electric device includes an air conditioner that air-conditions each zone while introducing outside air into each of the zones, and the control unit converts the amount of outside air introduced into each of the zones into the number of occupants. The control device for an indoor electric device according to claim 1, wherein the air conditioner is controlled so as to change in accordance with the air conditioner. 3. The air conditioner includes an air conditioner that air-conditions outside air to be introduced and sends the outside air to each zone by an air supply fan, and an amount of outside air sent from the outside air conditioner to each zone. A plurality of air supply dampers for varying the air flow, a plurality of exhaust dampers for varying the amount of air exhausted from each zone by an exhaust fan, and one air conditioner that air-conditions the air in each zone and returns the air to each zone. Wherein the control means completely closes both dampers in the zone where the number of seated persons is 0, and for a zone where the number of seated persons is one or more, the required amount of outside air introduced in the zone depends on the number of seated persons. Controlling the opening degree of both dampers in the zone so as to obtain the required value, and controlling the rotation speeds of both fans in accordance with the total outside air introduction amount obtained by the sum of the required outside air introduction amounts in each zone. 3. The room according to claim 2, wherein Control device for electrical equipment. 4. The air conditioner air-conditions external air to be introduced, sends the external air to an air outlet of each zone through an air supply duct by an air supply fan, and returns a return air duct from a suction port of each zone. One central air conditioner that returns the return air returned by the return air fan to each zone in an air-conditioned manner, an air supply damper provided at the outlet of each zone, and provided at the suction port of each zone A return air damper, wherein the control means controls the opening degree of both the damper so that the supply air damper and the return air damper in the zone where the number of seated passengers is 0 are fully closed, and the dampers are both The return air fan is controlled so as to reduce the rotation speed of the return air fan in accordance with the increase in the number of zones to be fully closed. Set both dampers so that the opening of the damper is the specified opening. 3. The control device for an indoor electric device according to claim 2, wherein the control unit controls an opening degree of the electric appliance. 5. A plurality of air conditioners are provided for each of the zones, and air in each zone is conditioned and returned to each zone while sending outside air introduced by one outside air intake fan to each zone. A plurality of air conditioners, a plurality of air supply dampers for varying the amount of outside air sent to each of the air conditioners by the outside air intake fan, and a plurality of exhaust dampers for varying the amount of air discharged from each zone by the exhaust fan. And the control unit turns off the air conditioner of the zone where the number of seated persons is 0 and fully closes both dampers of the zone. For a zone where the number of seated persons is 1 or more, The opening degree of both dampers is controlled so that the required outside air introduction amount becomes a value corresponding to the number of occupants, and both fans are controlled according to the total outside air introduction amount obtained from the sum of the necessary outside air introduction amounts of the respective zones. Rotation speed 3. The method according to claim 2, wherein the control is performed.
A control device for indoor electrical equipment according to the above. 6. The electric device includes a lighting device installed in each of the zones in addition to the air conditioner, and the control unit turns on the lighting device in the zone where the number of seated persons is one or more. 6. The control device for an indoor electrical device according to claim 2, wherein the luminaires in the zone where the number of occupants is zero are turned off. 7. The electric device includes a lighting device installed in each of the zones, and the control unit controls the number of occupants to be one.
The control device for an indoor electrical device according to claim 1, wherein the lighting devices in the zones are turned on and the lighting devices in the zone where the number of occupants is zero are turned off. 8. The seat detection means provided in each zone is provided on a desk or table in each zone, and is constituted by one or more seat sensors that output signals according to seating and leaving. Claims 1, 2, 3, 4,
8. The control device for an indoor electric device according to 5, 6, or 7.