KR20150004575A - Blowing system of position tracking and customize air blowing method using blowing system of position tracking - Google Patents

Abstract

The present invention relates to a position tracking type blowing system and a customized blowing method using the same. The blowing method comprises: a step of recognizing the position of an object; a step of calculating a separation distance from the object and the position coordinate through the position information of the object; and a step of blowing air in blowing conditions according to the separation distance from the object and the position coordinate. Therefore, the position tracking type blowing system can save electric energy required for blowing compared with the existing blowing types which deal with the entire blowing load according to a setting temperature in the entire blowing space, by discharging air to a narrow area requiring blowing by tracking a user. The position tracking type blowing system also can significantly improve blowing satisfaction compared with the existing blowing types according to an individual requiring blowing and the narrow space and can discharge air by regulating the degree of blowing toward a specific user or a direction where users are concentrated.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a position tracking type air blowing system and a customized air blowing method using the same,

[0001] The present invention relates to a position tracking type air blowing system and a customized air blowing method using the same, and more particularly, to a position tracking type air blowing system capable of controlling the degree of air blowing according to the degree of distribution of a tracked object, .

In recent years, in order to provide a convenient, safe and pleasant residential environment for residents, smart home appliances have been introduced, actively responding to residents' behaviors, and providing intelligent services most suitable for the occupants Purpose.

In recent years, there has been an increasing interest in location-based services in order to provide higher-quality intelligent services based on various information such as the presence of residents, life patterns, health status, emotional state, and the like.

In other words, if the presence of residents or life pattern can be grasped in a smart home, home appliances will be able to perform services more actively, and will be able to cope with residents' demands in advance.

For example, past cooling and heating devices operated passively by residents 'operation, but future home appliances will be able to actively provide the best environment for the residents by understanding residents' residential location and health status.

In recent years, various location recognition systems have been developed to identify residents' location information at home, and the location recognition system can be classified into three types according to the method used.

First, the triangulation method calculates the position of an object by measuring distances from predefined reference points. It uses Active Badges using infrared rays, Active Bats using ultrasound, There is a system such as Easy Living which you use.

Second, the scene analysis method is a method of determining the position of the object by detecting the movement of the feature point of the object to be observed, such as a motion star using a DC magnetic tracker and a radar using IEEE 802.11.

Finally, the proximity method is a method of determining the position using the proximity to a known reference point, including a Smart Floor using a pressure sensor and an Automatic ID system using RFID.

As an example of a smart home appliance, a technology for tracking a user and controlling airflow has been proposed in Japanese Patent Application Laid-Open Nos. 2000-0036325 and 2005-0034077.

Hereinafter, the integrated heat trace air-conditioning system disclosed in the prior arts 2000-0036325 and 2005-0034077 and the method of centralized control of the direction of the air conditioner by the position signal of the remote controller will be briefly described.

1 is an overall flow chart of an integrated heat tracing and air conditioning system in the patent application 2000-0036325 (hereinafter referred to as "prior art 1"). As shown in FIG. 1, the integrated heat trace air conditioning system of the prior art 1 includes an infrared heat tracing device, an indoor / outdoor temperature sensor, a basic program for controlling the same, Driver heat tracing program (tracking by head / chest / foot traces, temperature tracking, skin temperature tracking right after entering the driver's cab), control position to control this device, and air- An air-conditioner outlet switching device, an additional device such as an engine temperature sensor, an audio sound control device, a seat control device, a seat belt tension control device, and a sunroof control device.

However, the integrated heat trace air-conditioning system according to the prior art 1 has a disadvantage in that the recognition rate is lowered at the ambient temperature because the air volume and the discharge direction of the air conditioner are controlled through the body temperature of the human body.

FIG. 2 is a schematic diagram of a method for controlling the concentration of a direction of an air conditioner according to a position signal of a remote control unit in Japanese Patent Laid-Open No. 2005-0034077 (hereinafter referred to as "Prior Art 2"). As shown in FIG. 2, the air-conditioning direction control method of the air conditioner according to the position signal of the remote controller 20 of the prior art 2 includes a first step of receiving a wind direction concentration operation command by a remote controller, The main control unit of the air conditioner sets the wind direction concentration operating time T by the centralized operation command; A third step of receiving a position signal transmitted from the remote controller 20 during the wind direction concentration operating time T; A fourth step of controlling the wind direction adjusting device 10 to track the remote control position signal to perform a wind direction concentration operation; A fifth step of determining whether or not a stop command signal has occurred during the airstream concentration operation; A sixth step of switching to a normal operation when a stop command signal is generated in the fifth step; A seventh step of comparing the concentrated operation progress time (t) with a preset centralized operation time (T) when there is no stop command signal in the fifth step; An eighth step of returning to the third step when the concentrated driving progress time t is smaller than the set central driving time T; And returning to the normal operation when the concentrated operation progress time (t) is greater than the set centralized operation time (T).

However, according to the conventional technique 2, the directional control method of the air conditioner by the position signal of the air conditioner detects the user's remote control through the remote control sensor so that the direction of the air conditioner is adjusted so that the remote control is lost, There was an impossible problem.

Furthermore, the existing air conditioner has a problem in that efficient air blowing can not be realized because the air conditioner can restrictively control the air flow direction and the air blowing degree through the limited mode in which the air is periodically transmitted to the upper, lower, left and right sides periodically.

KR 2000-0036325 A KR 2005-0034077 A

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-described problems of the prior art, and to provide a blowing method of a conventional blowing type that tracks a user and discharges the blowing air to a local area requiring blowing, The present invention provides a position tracking type air blowing system and a customized blowing method using the same, which can reduce the required electric energy required for blowing air and can greatly improve the satisfaction of the blowing according to the individual who needs blowing and the local space.

Another object of the present invention is to provide a position tracking type air blowing system capable of adjusting the blowing degree to a specific user or an intensively distributed user direction, and a customized blowing method using the same.

According to an aspect of the present invention, there is provided a method of detecting a position of an object, comprising: recognizing a position of an object; Calculating a distance and a positional coordinate between the object and the object through the positional information of the object; And a step of blowing air in a blowing condition in accordance with a distance between the object and the position and coordinates of the object.

Further, the blowing condition in the present invention is characterized by being the blowing intensity, the blowing temperature, the blowing angle, the blowing time and the blowing direction.

In addition, the step of recognizing the position of the object in the present invention may be performed by sensing information of a specific part of the object by sensing information provided in the position tracking type air blowing system.

In addition, the step of recognizing the position of the object in the present invention may be performed by calculating the distance to a specific part of the object after shooting with a plurality of cameras provided in the position tracking type air blowing system.

In addition, the step of recognizing the position of the object in the present invention may be performed by calculating an angle with respect to the upper, lower, left, and right positions in the center of the camera through an object photographing image of the camera provided in the position tracking type air blowing system.

Also, the step of recognizing the position of the object in the present invention may be performed through identification of the object recognition ID.

In the present invention, the object recognition ID may be an RFID tag or a terminal.

In addition, a blowing condition for each object can be set in advance for each of the object recognition IDs in the present invention.

In addition, the present invention may include a step of calculating a distribution ratio of the object to the object distance and the position coordinate calculation step.

Further, in the blowing step of the present invention, the blowing degree may be varied depending on the degree of distribution of the object.

Further, in the blowing step of the present invention, if the position of the object can not be grasped, the degree of blowing can be performed according to the setting information.

According to another aspect of the present invention, An information calculation unit for calculating a distance and a positional coordinate between the object and the object through the positional information of the object by the recognition unit; And an air blowing unit blowing air in accordance with a distance and a position coordinate between the object and the calculated position calculated by the information calculating unit.

According to the present invention, it is possible to reduce the required electric energy required for blowing air as compared with the conventional blowing method that covers the entire blowing load according to the temperature set in the entire blowing space, by tracing the user and discharging the blowing air to the local area requiring blowing. It is possible to greatly improve the satisfaction of blowing according to the individual who needs and the local space and to control the blowing degree to the specific user or the concentrated distribution user.

1 is an overall flowchart of an integrated heat trace air conditioning system according to prior art 1;
2 is a schematic view of a method for controlling the concentration of a direction of an air conditioner according to the position signal of the remote controller according to the prior art 2. Fig.
FIG. 3 is a block diagram of a customized blowing method using the position tracking type blowing system according to the present invention.
4 is a schematic view of a position-tracking type ventilation system according to the present invention.
5 and 6 are conceptual diagrams illustrating a calculation process of the separation distance in the customized air blowing method using the position-position tracking type air blowing system according to the present invention.
7 is a schematic view showing a blowing state implemented by a customized blowing method using the position tracking type blowing system according to the present invention.

The terms or words used in the present specification and claims are intended to mean that the inventive concept of the present invention is in accordance with the technical idea of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to explain its invention in the best way Should be interpreted as a concept.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the term " part "in the description means a unit for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a position tracking type air blowing system and a customized air blowing method using the same according to the present invention will be described in detail with reference to the drawings.

FIG. 3 is a block diagram illustrating a customized blowing method using the position tracking type blowing system according to the present invention. FIG. 4 is a schematic view of a position tracking type blowing system according to the present invention. FIG. 7 is a conceptual diagram illustrating a calculation process of the separation distance in the customized air-blowing method using the position-tracking type air-blowing system according to the present invention. State is shown schematically.

According to these drawings, the customized air blowing method using the position tracking type air blowing system of the present invention includes step S100 of determining the position of an object, a distance between the object and a position coordinate calculation step S110 and a blowing step S120.

In the present embodiment, the position-tracking blower system is applicable to air conditioners (stand-type or wall-mounted type, more broadly, for personal use or business use) .

Step S100 of recognizing the object position is a step of recognizing the position of the object according to the degree of distribution of the specific object or the object through the recognition unit 200. [ On the other hand, the object in this embodiment is illustrated as being a person.

Meanwhile, the step S100 of recognizing the position of the object may be realized by any one of a method of sensing, a method of photographing a plurality of cameras, a method of calculating a direction connecting a camera and a user, and a method of identifying a user recognition ID Do. The position tracking type air blowing system includes a recognition unit 200 including a sensor and a camera, an information calculation unit 210, a control unit 220, and a blowing unit 230.

That is, the sensing method for implementing the step S100 of recognizing the position of the object is a sensing part 200 provided on the front surface of the position tracking type air blowing system, that is, a sensor (not shown) And performs the sensing in the control unit 220 through the sensing information. Here, a specific part of the user's body includes a face or the like.

Next, a photographing method of a plurality of cameras for implementing the step S100 of recognizing the object position is performed by a recognition unit 200 provided in front of the position tracking type air blowing system, that is, a plurality of cameras C1 and C2, And then calculates the distance to a specific part of the user and performs the calculation in the control unit 220.

A method of photographing a plurality of cameras used for implementing the step S100 of recognizing the position of the object will be described in more detail with reference to FIGS. 4 and 5. FIG.

The above method is a method using an angle of view of two cameras (C1 and C2), a size of photographed images of the two cameras (C1 and C2), and position information of an arbitrary specific pattern in photographed images of the two cameras (C1 and C2) .

That is, if the angle of view information of the first and second cameras C1 and C2, the size of the captured image, and the position of the specific pattern in the captured image are known, the position of any point between the first and second cameras C1 and C2 The photographing position portion) to a specific pattern (smoke portion) can be obtained. The distance thus obtained corresponds to the separation distance.

The calculation process of the separation distance will be described with reference to FIGS. 5 and 6. FIG.

In FIG. 5, the points of the first and second cameras C1 and C2 are P _C1 and P _C2 , and the target user T point is P _T. The first and second cameras C1 and C2 correspond to the first camera C1 and the second camera C2 respectively and the user T can be regarded as an element corresponding to the feature pattern. The distance b between the first camera C1 and the second camera C2 is a known value. A1 and A2 are viewing angles of the first camera C1 and the second camera C2, respectively, which are also known values.

Here, a triangle having three points including P _T , P _C1 , and P _C2 can be constructed as shown in FIG. Each side of the constructed triangle has a length of a, b, c.

In FIG. 5, when an equilateral triangle formed by the second side and the third side, which are the same length b as the first side connecting the points P _C1 and P _C2 , is arbitrarily shown, B ₁ indicates the points P _C1 and P _T (Length c) and the second side, and B ₂ represents an angle formed by the side (length a) connecting the points P _C2 and P _T with the third side.

6A is a view of the user T viewed from the first camera C1 and FIG. 6B is a view of the user T viewed from the second camera C2. FIG. 6 shows an image in which an object is photographed at an angle of view of each camera. At this time, the width information L ₁ and L ₂ of the photographed image are used as the size information of the photographed image, respectively.

In the case of the image (a) photographed by the first camera C1, the user T is distanced by W ₁ from the right edge of the photographed image, and in the case of the image photographed by the second camera C2, (T) W ₂ from the left edge of the captured image As shown in FIG.

,

로 각각 정의될 수 있다. 제1, 2 카메라(C1, C2)의 시야각 A₁과 A₂는 이미 알고 있는 값에 해당되므로 B₁과 B₂값은 위의 식을 통해 쉽게 연산될 수 있다.5 and 6 that the values of B ₁ and B ₂ are

,

Respectively. Since the viewing angles A ₁ and A ₂ of the first and second cameras C1 and C2 correspond to known values, the values of B ₁ and B ₂ can be easily calculated by the above equation.

,

로 나타낼 수 있다.D ₁ is an angle between the side connecting P _C1 and P _C2 in FIG. 6 and the second side, and D ₂ is an angle formed by the side connecting P _C1 and P _C2 and the third side. These D ₁ and D ₂

,

.

,

를 이용하면,

,

로 정의된다. here,

,

In this case,

,

.

이므로,

이고,

이다. 본 발명에서는 제1, 2 카메라(C1, C2)의 시야각 A₁과 A₂, 그리고 제1, 2 카메라(C1, C2) 사이의 거리 b를 미리 알고 있으므로 a와 c값은 상기의 수학식들을 사용하여 쉽게 연산될 수 있다. 한편, 다른 방법으로는 깊이(depth) 카메라를 이용하여 송풍 시스템과 사용자 거리를 측정할 수 있다.Finally

Because of,

ego,

to be. Since the viewing angles A ₁ and A ₂ of the first and second cameras C1 and C2 and the distance b between the first and second cameras C1 and C2 are known in advance in the present invention, Can be easily calculated using. On the other hand, another method can measure the distance between the ventilation system and the user using a depth camera.

In this case, the step S100 of recognizing the position of the object through the various embodiments recognizes, for example, the distribution of the personnel through the user distribution ratio calculating unit 212 to determine whether the user has the largest section, The first section is blown intensively, while the second section and the third section are not blown. In the first section, the air is strongly blown. In the third section, the blown air is blown And a mode of weakly blowing air in the second section. (See Fig. 6)

Next, a method of calculating a direction connecting the camera and the user for implementing the step S100 of recognizing the position of the object is to determine whether the user is located at several degrees from the center of the camera, And calculates the position of the user. At this time, it is possible to calculate the direction according to the position of the left, right, top, and bottom of the camera image, assuming that the angle of view of the camera is known in advance.

Lastly, a method by identification of the user recognition ID for implementing the step S100 of recognizing the object position may be performed in accordance with the position coordinates of the user identified by the user tracking device in a state in which the air- Is determined through identification of the user identification ID, which is an object, so that the ventilation system can be operated in a customized manner.

For example, by setting the air condition for each object in advance for each recognition ID by using the user's ID (facial recognition, RFID tag usage, user's own smart terminal) and recognizing the environment Etc.) can be discharged. Individual preference environments can be set in advance in the ventilation system.

The distance and position coordinates calculation step S110 of calculating the distance and position coordinates between the object and the object are performed through the information calculation unit 210 using the positional information of the user, to be.

The user distribution ratio calculating unit 212 may further include a step of calculating the distance between the object and the distribution ratio of the user in the position coordinate computing step S110. At this time, the step of calculating the distribution ratio of the user evaluates the degree of distribution of the user through the recognition unit 200, and when a plurality of users use the air conditioner, Can be transmitted. When the blowing system is started, people can send a long time or strong wind in a lot of directions and a short time or a weak wind in the direction that a person is short.

The blowing step S120 is a step of blowing air through the blowing unit 230 under the blowing condition according to the positional distance and the distance from the user. In particular, the blowing step (S120) may vary the blowing degree depending on the degree of distribution of use. Here, the blowing condition refers to the blowing intensity, the blowing temperature, the blowing angle, the blowing time and the blowing direction.

On the other hand, if it is impossible to grasp the position of the user in the blowing step (S120), the blowing degree is performed according to the setting information. If the user does not move, the temperature and intensity of the blowing system discharge air are automatically and weakly discharged . However, if the user moves indoors, he can track the user and tailor wind according to his personal preference and distance.

Therefore, according to the present invention, when a specific user moves in the room or when a plurality of users are gathered, the air conditioner winds the air and discharges the air to the local area. Therefore, compared with the conventional air conditioner, It is possible to reduce the required electric energy required for the cooling and the cooling satisfaction according to the individual who needs cooling and the local space. On the other hand, the present invention can adjust the air conditioner wind according to user preference, local cooling load, distance (temperature, wind strength, etc.).

Further, the operation and stopping time of the position tracking type air blowing system can be adjusted differently according to the personnel distribution, and the air flow intensity and the blowing distance in the position tracking type air blowing system can be adjusted differently.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the equivalents of the appended claims, as well as the appended claims.

200:
210: Information calculation unit
212: User distribution ratio calculating section
220:
230:
C1, C2: First and second cameras
T: User

Claims (12)

Recognizing the position of the object;
Calculating a distance and a positional coordinate between the object and the object through the positional information of the object; And
And blowing the air in a blowing condition according to a distance between the object and the position and coordinates of the object.
The method according to claim 1,
Wherein the blowing conditions are blowing intensity, blowing temperature, blowing angle, blowing time and blowing direction.
3. The method of claim 2,
Wherein the step of recognizing the object position is performed by sensing information of a specific part of the object by a sensor provided in the position tracking type air blowing system and using the sensing information.
3. The method of claim 2,
Wherein the step of recognizing the object position is performed by calculating a distance to a specific portion of the object after photographing the object using a plurality of cameras provided in the position tracking type air blowing system.
3. The method of claim 2,
Wherein the step of recognizing the position of the object is performed by calculating an angle with respect to the upper, lower, left, and right positions in the center of the camera through an image of the object of the camera provided in the position tracking type air blowing system.
3. The method of claim 2,
Wherein the step of recognizing the object position is performed through identification of the object recognition ID.
The method according to claim 6,
Wherein the object recognition ID is an RFID tag or a terminal.
The method according to claim 6,
Wherein a blowing condition for each object is set in advance for each of the object recognition IDs.
The method according to claim 1,
And calculating a distribution ratio of the object in the step of calculating the positional distance from the object and the position coordinates.
The method according to claim 1,
Wherein the blowing step is performed by using a position tracking type air blowing system that varies the blowing degree according to the degree of distribution of the object.
The method according to claim 1,
Wherein the blowing step performs the blowing degree according to the setting information when the position of the object can not be grasped.
A recognition unit for recognizing a position of an object;
An information calculation unit for calculating a distance and a positional coordinate between the object and the object through the positional information of the object by the recognition unit; And
And an air blowing unit for blowing air in accordance with a distance from the object and a positional coordinate calculated by the information calculating unit.

Images