JPH109654A - Indoor environment control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a high energy saving effect without spoiling confortableness in an indoor environment control device. SOLUTION: A room has its inner space 10 divided into a plurality of control units C and these control units C are provided with blow-off openings 11 respectively. Each blow-off portion 11 is provided with a node ND. An air conditioning apparatus 15 which is disposed at a corner of the inner space 10 is provided with a node N., while a human body detector 13 which can overlook a full view of the inner space 10 is provided with a node NB. These nodes ND, NA, NB are connected with each other by a network circuit. Based on a position information of a mean 12 obtained from the human body detector 13, these nodes ND, NA, NB are constructed such that the remoter the control unit C is disposed from the man 12, the smaller a blow-off amount from the blow-off portion 11 becomes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor environment control device, and more particularly to an indoor environment control device for automatically controlling indoor air conditioning and lighting in various building facilities such as office buildings and houses. .

[0002]

2. Description of the Related Art In a conventional indoor environment control device of this type, a single central management device controls the air conditioning and lighting of the entire room, and all the air conditioning in the room are controlled. It controls the blowout section and the lighting system uniformly. Therefore, the air conditioner may be operated or illuminated more than necessary even for a part where no person is present, which is uneconomical.

[0003] On the other hand, it is assumed that only a blowout portion or a lighting device in a portion where a person is present is simply opened or lit, and a blowout portion or a lighting device in a portion where no human is present is automatically closed or turned off. If this is the case, there is a possibility that comfort, which is the original purpose of this type of indoor environment control device, may be impaired.

[0004] Therefore, there arises a technical problem to be solved in order to obtain a high energy-saving effect without impairing comfort, and an object of the present invention is to solve the problem.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-mentioned problems, and divides a room into a plurality of control units. In addition to detecting the presence / absence, an air outlet or a lighting device of the air conditioner is installed for each control unit, and the output from the air outlet or the lighting device of the control unit where no human is present is output as the control unit and the control unit where the human is present It is an object of the present invention to provide an indoor environment control device that performs adjustment based on a mutual positional relationship.

[0006]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described in detail with reference to FIG. As shown in FIG.
Is divided into five in each of the vertical and horizontal directions, and a total of 25 control units C are set, and an air-conditioning blowout unit 11 is provided for each control unit C.

Here, the horizontal arrangement of these control units C is defined as a row, and the vertical arrangement is defined as a column, on the paper surface, in what row from the top (in front of the room 10) and in what column from the left. The individual control unit C is specified depending on the control unit C. When a specific control unit is displayed below, a two-digit arithmetic numeral is added to the lower left of the code C, and the left-side arithmetic numeral indicates the row of the control unit, and the right-side arithmetic numeral is the control numeral. It shall represent a sequence of units. For example, the control unit at the upper left of the paper is C
Is _11, the lower left of the control unit is C _51.

Also, one control unit not specifically specified is
C to say rank_ij(That is, the control unit at the i-th row and the j-th column) and
Display, and three control units C in FIG.₄₁, C₃₃
And C₅₄Control where humans 12, 12 ... exist like
The unit is generally C _pq(That is, control of p rows and q columns
Unit).

Thus, as shown in FIG.
Is provided with a human body detector 13 such as an infrared sensor, an ultrasonic sensor, a VTR camera or a digital still camera at a place where the whole can be overlooked, and an output of the human body detector 13 is connected to the node _NH . .

Further, a suction port 14 is opened at one corner of the room 10, and an air conditioner 15 is installed behind the suction port 14. The output of the air conditioner 15 is controlled by the node N _A , and the output duct 16 of the air conditioner 15 repeats branching so that all of the air outlets 11,
11 ...

[0011] Further, these blow-out portions 11, 11 ...
Node N _D is provided in one-to-one s husband, each node N _D
The opening degree of the damper 17 of the blowing section 11 is adjusted by. Therefore, the node N _D is provided 25 in one by one all for each of the control units C. Further, the node N _H ,
When combined with N _A , the total number of nodes is 27. These 27 nodes N _H , N _A and N _D are connected to each other via a wired or wireless network line 18.

Here, the node means each control processor in the distributed network system. FIG. 3 shows a control flow in the node _NH . When the human body detector 13 looks down on the room 10 (step 101) and outputs the bird's-eye view data to the node _NH. , The node N _H analyzes the bird's-eye view data to determine the control units C _pq , C _pq , in which the humans 12, 12,... Exist (step 102). (That is, according to the example of FIG. 1,
The judgment results are C ₄₁ , C ₃₃ and C ₅₄ . Then, the determination result is uploaded to the network line 18 (step 103).

[0013] In this way, the control unit C _pq which rest on the network line 18, C _pq ... information, as shown in the control flow of FIG. 4, are downloaded to the node N _D of the control unit C _ij ( Step 201). That is, all 25 nodes N _D , N _D ... _{Respectively correspond to} the control units C _pq , C _pq .
Download the information. And these nodes N
_D, N _D ... are respectively the control unit C _pq, C _pq ... whether or not there is control unit C _ij that is in charge of their own in the (or, if there is only one control unit C _pq to information obtained, the control Unit C _pq
Is equal to or is a control unit C _ij in charge of their own) (step 202).

Then, those control units C_pq, C_pq…of
One of them (or its control unit C _pq) Own boss
Control unit C_ij, The control coefficient F_ij= Intrinsic factor
Child a _ij(Step 203), the control coefficient F_ij(=
a_ij), The control unit C under its own control_ijDamper
17 is adjusted (step 204).

On the other hand, those control units C_pq, C_pq…in
(Or its control unit C _pqBut) own boss
Control unit C_ijIf not, go to step 205
After the two-step calculation in step 206, the control coefficient F_ijCalculate
And the calculated control coefficient F _ijMy own boss to suit
Control unit C_ijAdjust the opening of the damper 17 (step
204).

Specifically, first, in step 205, the correlation factor f _ij (p, q) for each control unit C _pq is calculated by the following equation.

[0017]

(Equation 1)

The physical meaning of this equation 1 is that its control unit C
That is, the correlation factor f _ij (p, q) is determined so as to be inversely proportional to the distance between _pq and the control unit C _ij which is controlled by itself. In other words, the closer the control unit C _pq is to the control unit C _ij which is controlled by itself, the more the correlation factor f _ij (p, q)
Becomes larger, and the further the distance, the correlation factor f _ij (p,
q) becomes smaller. In other words Furthermore, the correlation factor human 12 as there if I closer to the control unit C _ij in charge of their own f _ij (p, q) is increased and the correlation factor as there if I farther f _ij (p, q ) Becomes smaller.

[0019] Incidentally, the correlation factor f _ij (p, q) is a control unit C _pq for each of the control units C _pq, since only be calculated C _pq ... number of control units C _pq, C _pq ... Number of And n
The individual correlation factors corresponding to each control unit C _pq are referred to for convenience as f _ij
(P ₁ , q ₁ ), f _ij (p ₂ , q ₂ )... F _ij (p _n , q
_n ).

Then, in step 206, control is performed.
Coefficient F_ijIs calculated by the following equation. F_ij= (F_ij(P₁, Q₁) + F_ij(P_Two, Q_Two) + ... + f_ij(P_n, Q_n)) / N... (Equation 2)_ij(P₁, Q₁), F_ij(P
_Two, Q_Two) ... f_ij(P _n, Q_n) Averaged (so to speak)
(Equivalent to the density of human beings 12 in the surrounding area)
Coefficient F_ijIt means to become. Also, p and q
Is a positive integer of 1 or more._ij(P,
q) <a_ijTherefore, from equation 2, F_ij<A_ijNana
You. That is, it is determined through these steps 205 and 206.
Control factor F_ijIs determined through step 203 described above.
Control factor F_ij(= A_ij).

Summarizing the above, when the human 12 is just present in the control unit C _{ij which} he controls (when the density of the human 12 is the highest), the control coefficient F _ij becomes the maximum possible value, As the presence density of the human 12 decreases from the control unit C _ij controlled by itself and its surroundings, the control coefficient F _ij
Is getting smaller.

More specifically, for example, in the case where the humans 12, 12,... Exist in the control units C ₄₁ , C ₃₃ and C ₅₄ as shown in FIG. 1, the control coefficient F _ij is calculated for each control unit C _ij. The result is as shown in the table of FIG.

As described above, each node N_DIs my husband
The control coefficient F calculated by oneself _ijAccording to myself
Control unit C controlled by itself_ijOf damper 17 was adjusted
Later (step 204 in FIG. 4), the control coefficient F_ij
Is uploaded to the network line 18 (step
207). That is, a total of 25 control coefficients F_ij, F
_ij... is uploaded to the network line 18
Is done. Then, as shown in FIG.
Number F_ij, F_ij... is a node N for the air conditioner 15 _ATo dow
It is downloaded (step 301).

Thereafter, the node N _A calculates the air flow W of the air conditioner 15 based on the control coefficients F _ij , F _ij ... (Step 302).

[0025]

(Equation 2)

Here, w _max is the maximum air flow per one of the blow-out sections 11. In addition, _assuming that the amount of air blown from the blowing unit 11 in each control unit C _ij is w _ij , w _ij = w _max
Since it is F _ij , Equation 3 can be expressed as the following equation.

[0027]

(Equation 3)

The node N _A is connected to the air conditioner 15
The control is executed so that the output of the air flow becomes the blowing amount W (step 303). In this way, the blowing amount w from each blowing unit 11 is proportional to the control coefficient F _ij corresponding to the blowing unit 11.
_ij (= w _max F _ij ) will be output. Therefore,
As can be seen from FIG. 5, each control unit C _ij is assumed to have the same eigen factor a _ij for all control units C _ij , C _ij .
By comparing the air blowing amount w _ij for each _ij mutually control unit C _ij just humans 12 is present, i.e., C ₄₁ In C _pq (Fig, C
₃₃ and C ₅₄ ), the air flow rate w _ij from the air outlet 11
, The other control units C _ij are located farther from the control units C _pq , C _pq .
The blowing amount w _ij from the blowing unit 11 becomes small. That is,
The lower the density of the humans 12 in the surrounding area, the smaller the airflow amount w _ij .

At this time (when it is assumed that the characteristic factors a _ij are equal for all the control units C _ij , C _ij ... In FIG. 5), the blown air amount W from the air conditioner 15 is expressed by the following equation (3) or (3). ', W = 13.9156 w _max a _ij . On the other hand, if all of the 25 conventional without such control from the blowout unit 11, 11 ... to have uniform manner blast, becomes W = 25.0000w _max a _ij identical conditions. Therefore, in the example of FIG. 1, the calculation is such that the blowing amount W can be reduced by about 40% as compared with the conventional case. As a result, the load on the blowing power and the heat source of the air conditioning is reduced, and high energy saving can be secured.

Further, relatively large air is blown in and around the space where the person 12 is located, and the amount of air blow decreases as the distance from the person 12 increases. Therefore, even when the person 12 moves, air conditioning is rapidly performed. There is no such thing as entering a space that has not been done. Therefore, comfort is not impaired.

In this embodiment, the air blowing control has been described, but the present invention is naturally applied to other air conditioning control and lighting control. In addition, the correlation factor f _ij (p, q) can be a factor including various conditions and states such as the area and volume (air volume) of the control unit C _ij , the number of humans, and their interrelation. .

Thus, the present invention can be variously modified without departing from the spirit of the present invention, and it is natural that the present invention extends to the modified ones.

[0033]

As described above, according to the present invention, the output is increased as the human being is closer, and the output is increased as the human being is farther (the density of the surrounding human beings is lower). Since the output is reduced, the load on air conditioning and lighting is reduced, and a high energy saving effect can be exhibited.

Further, even if a person moves, the person does not suddenly enter a space where air conditioning or lighting is not performed, and comfort is not impaired.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention and is an explanatory plan view of a room.

FIG. 2 is an explanatory front view showing an embodiment of the present invention.

FIG. 3 is a flowchart showing control contents performed in a node for a human body detector.

FIG. 4 is a flowchart showing the contents of control performed by a node for a blowing unit installed for each control unit.

FIG. 5 is a table showing control coefficient values for each control unit in FIG. 1;

FIG. 6 is a flowchart showing the contents of control performed by a node for an air conditioner.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Room 11 Blow-out part 12 Human 13 Human body detector 14 Suction port 15 Air conditioner 16 Output duct 17 Damper 18 Network line C, C _ij control unit F _ij control coefficient N _A , N _D , N _H node W, w _ij

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hirokazu Suzuki 2-1 Tsukudo-cho, Shinjuku-ku, Tokyo Kumagaya Gumi Tokyo Head Office (72) Inventor Kazuto Shimoirisa 2-1 Tsukudo-cho, Shinjuku-ku, Tokyo Kumagaya Gumi Tokyo Head Office

Claims (1)

[Claims] 1. The room is divided into a plurality of control units, and
The human body detection device detects the presence or absence of a human for each control unit, and installs a blowout unit or lighting device of an air conditioner for each control unit, and outputs from a blowout unit or lighting device of a control unit where no human is present. , Based on the mutual positional relationship between the control unit and the control unit in which a human exists.