KR101204493B1 - Method and System for Location Tracking for Multi User Based on ubiquitous Home Environments - Google Patents

Abstract

A multi-user indoor location tracking method and system based on ubiquitous home environment is provided. The multi-user location tracking method detects the user's location and the user's use of the object, identifies the user among the plurality of users based on the object's use, and tracks the user's location separately from other users. do. As a result, non-responsive, self-aware multi-user indoor location tracking is possible, rather than an existing user's attached sensor and a location tracking technology of the device.

Description

Method and System for Location Tracking for Multi User Based on ubiquitous Home Environments}

The present invention relates to a multi-user indoor location tracking method, and more particularly to a multi-user indoor location tracking method based on the ubiquitous home environment.

The shift to a ubiquitous computing environment has had a significant impact on existing healthcare services. In particular, the monitoring system technology for the elderly living alone is effective for periodical health care purposes and prompt response to emergency situations through pilot services at home and abroad, and suggests the future of health care services. The core technology for this is based on monitoring residents' locations and behaviors.

In this regard, most domestic and overseas indoor location research studies are incorporating wireless communication technology using attached sensors and devices such as RFID tags and terminals. In addition, the service is provided through detection of one or more user identification and actions through an image.

Based on these existing researches, it is necessary to construct an expensive infrastructure based on smart home or ubiquitous home environment to apply to u-healthcare. At the same time, the study of user behavior patterns is faced with the complexity of defining daily life.

In addition, research on monitoring system for elderly people can use various sensors such as infrared sensor, activity sensor, and gas sensor. These systems detect behaviors by sensors attached to the body and apply them to monitoring service. Doing.

However, the method using the attached sensor has a difficult problem that is difficult to apply to the elderly living alone.

The present invention has been made to solve the above problems, the object of the present invention is a non-responsive, self-aware multi-user indoor location tracking method, rather than the existing user-attached sensor and the location tracking technology of the device. And providing a system.

According to the present invention for achieving the above object, a multi-user location tracking method comprising the steps of: sensing the location of the user; Detecting the use of objects by the user; Determining who the user is among the plurality of users based on the object usage status; And repeating the above steps, separately tracking the location of the user from other users.

In addition, it is preferable that the goods use status is different for the plurality of users.

In addition, the article use status includes a article use location, and the article use location may be different for the plurality of users.

In addition, the goods use status includes used goods information, and it is preferable that the used goods are different for the plurality of users.

In addition, the goods use status includes a goods use time, and the goods use time may be different for the plurality of users.

In addition, the article use status includes a article use count, and the article use count may be different for the plurality of users.

In addition, the present multi-user location tracking method, comprising: detecting a body characteristic of the user; And determining who the user is among the plurality of users based on the physical characteristics.

On the other hand, the multi-user location tracking system according to the present invention, the first sensor for sensing the location of the user; A second sensor for detecting an actual use of an object by a user; And location tracking to identify who the user detected by the first sensor is among a plurality of users based on the object usage detected by the second sensor, and to track the location of the user separately from other users. Server; includes.

In addition, it is preferable that the goods use status is different for the plurality of users.

In addition, the article use status includes a article use location, and the article use location may be different for the plurality of users.

In addition, the goods use status includes used goods information, and it is preferable that the used goods are different for the plurality of users.

In addition, the goods use status includes a goods use time, and the goods use time may be different for the plurality of users.

In addition, the article use status includes a article use count, and the article use count is different for each of the plurality of users.

In addition, the multi-user location tracking system according to the present invention further includes a third sensor for sensing a body characteristic of the user, wherein the location tracking server, based on the body characteristic sensed by the third sensor, It is desirable to know who the user is among the plurality of users.

As described above, according to the present invention, non-responsive, self-aware multi-user indoor location tracking is possible, rather than the existing user's attached sensor and the location tracking technology of the device.

In addition, in connection with the existing home network system, based on information such as personal history and care and counseling for residents, it can be used as a management service for the children of disabled and dual income couples as well as the elderly who need probation.

In addition, it is possible to prevent the user from feeling uncomfortable, that is, the mental burden of being monitored by something, the inconvenience of operating something, and the constraint of being in the system.

1 is a block diagram of a multi-user indoor location tracking system, in accordance with an embodiment of the present invention;
2 is a flow chart provided in the description of the multi-user indoor location tracking method according to another embodiment of the present invention, and
3 is a diagram illustrating a location tracking result.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1. Multi-user indoor location tracking system

1 is a block diagram of a multi-user indoor location tracking system, in accordance with an embodiment of the present invention. The multi-user indoor location tracking system shown, based on the ubiquitous home environment, aims to be unconstrained and self-aware.

As shown in FIG. 1, the multi-user indoor location tracking system according to the present embodiment is constructed by connecting a plurality of sensors 110 to 170 and a location tracking server 200 to communicate with each other.

The multi-user indoor location tracking system shown in FIG. 1 is illustrated in a structure in which a plurality of sensors 110 to 170 are connected with respect to the location tracking server 200, which is merely exemplary.

The topology of the multi-user indoor location tracking system is not a problem as long as the sensing transient by the number of sensors 110-170 can only be communicated to the location tracking server 200. That is, the location tracking server 200 and the plurality of sensors 110 to 170 may be connected to a structure other than the structure shown in FIG. 1.

The sensors 110 to 170 detect the location, physical characteristics, and object usage of the multiple users, and transmit the detection result to the location tracking server 200.

The location tracking server 200 collects the detection results of the sensors 110 to 170, and performs location tracking for multiple users for each user based on this.

2. Sensor

Hereinafter, a multi-user indoor location tracking system is assumed to be built in a home, and the sensors 110 to 170 will be described in detail one by one.

2.1. Distance sensing sensor

The distance sensor 110 is a sensor that detects a distance to a user. When the distance detected by the distance sensor 110 is subtracted from the height of the room, a height, which is one of the user's body characteristics, may be calculated.

The distance sensor 110 is preferably installed in the porch, which is a place where users mainly stand, but can be installed in other places.

2.2. Weight sensing sensor

The weight sensor 120 is a sensor for detecting the weight of the user. The weight sensor 120 is preferably installed in the wash basin where the user is standing for a long time, it may be installed in other places, of course.

2.3. Activity detection sensor

The activity detection sensor 130 is a sensor that detects a user's activity and ultimately detects a place where the user is located.

It is preferable to install the activity detection sensor 130 in each place of the house, for example, it can be installed in the living room, the main room, the kitchen, the toilet, the veranda, the utility room, the entrance.

On the other hand, the front door has been described that the distance sensor 110 can be installed, the distance sensor 110 may be implemented to perform the role of the activity sensor 130 together. That is, when the distance to the user is detected by the distance sensor 110, it means that the user can be treated as being located at the front door.

2.4. Detailed Position Detection Sensor

The detailed position detection sensor 140 is a sensor for detecting a detailed position of the user and may be installed in furniture such as a bed, a sofa, a wardrobe, a shoe rack, a dining table chair, and the like. Here, the detailed position is a very specific position, for example

1) In case of bed, separate left and right sides of bed,

2) In case of sofa, divide the left, center and right side of sofa,

3) In case of closet, distinguish left and right side of closet,

4) In case of shoe box, distinguish upper and lower part of shoe box,

5) For dining chairs, distinguish the first chair, the second chair, the third chair and the fourth chair.

2.5. Proximity sensor

The proximity sensor 150 is a sensor that detects whether a user has approached and is installed in various products in the home, and may detect whether the user uses the product.

Examples of products in which the proximity sensor 150 may be installed may include a sink, a gas range, a refrigerator, and the like, and the other proximity sensor 150 may be installed in other products.

On the other hand, the proximity sensor 150 performs substantially the same function as the detailed position detection sensor 140, it is not necessary to distinguish between them in the implementation.

2.6. Smoke detection sensor

The smoke sensor 160 is a sensor for detecting the generated smoke, and specifically, may detect whether the user is smoking.

The smoke detection sensor 160 is preferably installed on the veranda, which is a suitable place for smoking, of course, can be installed in other places.

2.7. Type Sensor

Usage form detection sensor 170 is installed in the product, it is a sensor for detecting how the user uses the installed product. The use type detection sensor 170 is a product that can be installed, there is a bidet, the use type detection sensor 170 installed in the bidet detects whether the user raises and uses the toilet seat (man) and put down (man, woman).

In addition to the bidet, in the case of a product having a different usage type for each user, a usage type sensor 170 may be installed and used. For example, if user-1 uses the dryer as hot wind, and user-2 uses the dryer as cold wind, the user-1 may install the usage pattern detecting sensor 170 in the dryer to detect the usage form.

3. Multi-user identification and location tracking

The location tracking server 200 collects the detection results of the sensors 110 to 170, and based on this, identifies the multiple users and performs location tracking for each user. The process will be described in detail with reference to FIG. 2. .

2 is a flowchart provided to explain a multi-user indoor location tracking method according to another embodiment of the present invention. As shown in FIG. 2, when the user's location is detected (S310-Y), but the user's physical characteristics are not detected (S320-N), and only the object use status is detected (S330-Y), location tracking The server 200 determines who is the user whose location is detected in operation S310 based on the detected use status of the operation in operation S330 (S340).

The user's location in step S310 is detected by the activity detection sensor 130. In addition, the body characteristics detected in operation S320 include the height of the user sensed by the distance sensor 110 and the weight of the user sensed by the weight detection sensor 120.

On the other hand, the use of the object detected in step S330 is,

1) location of the object detected by the detailed position detection sensor 140,

2) information on the object of use detected by the proximity sensor 150,

3) information on whether smoking is detected by the smoke detection sensor 160, and

4) Use form of the object detected by the use form detection sensor 170

Or the like.

Hereinafter, a method of determining who is a user whose location is detected in step S310 will be described in detail based on the use status of goods in step S340.

Position tracking server 200, by the detailed position detection sensor 140,

i) If the user is detected on the left side of the bed, User-1, who mainly uses the left side of the bed, is located in the room where the bed is,

ii) If the user is detected on the right side of the bed, User-2, who mainly uses the right side of the bed, is located in the room where the bed is,

iii) If the user is detected on both the left and the right side of the bed, it is assumed that both User-1 and User-2 are located in the bed with the bed.

In addition, the location tracking server 200, by the detailed position detection sensor 140,

i) If the user is detected on the left side of the sofa, User-1, who mainly uses the left side of the sofa, is located in the living room with the sofa,

ii) If the user is detected in the center of the sofa, User-2, who mainly uses the center of the sofa, is located in the living room with the sofa,

iii) If the user is detected on both the left and the center of the sofa, it is assumed that both User-1 and User-2 are located in the room where the sofa is located.

On the other hand, the location tracking server 200, when the user is detected at the sink by the proximity sensor 150, the user-1 mainly using the sink is determined to be located in the kitchen with the sink.

And, the location tracking server 200, when the user is detected by the activity detection sensor 130 located on the veranda, and smoke is detected by the smoke detection sensor 160 as a user-2 smoker is located on the veranda. Figure out.

On the other hand, the location tracking server 200, when the user is detected by the activity detection sensor 130 located on the veranda, but the smoke is not detected by the smoke detection sensor 160, the non-smoker user-1 is located on the veranda I grasp it.

In addition, when the location tracking server 200 detects that the toilet seat is raised by the usage type sensor 170 installed in the bidet, the user 2, which is a male, is located in the toilet with the bidet.

In addition, the article usage time and article usage count may be further considered in the article usage situation detected in operation S330.

For example, if user-1 is at home during the day and night, and user-2 is at home only at night, the user sensed during the day may be regarded as user-1.

As another example, if user-2 uses the refrigerator one time for eating, while user-1 uses the refrigerator many times in a short time for cooking, the user-2 uses a refrigerator many times in a short time. If the user is detected by the number of times, it can be seen that User-1 is located in the kitchen with the refrigerator.

After operation S340, the location tracking server 200 tracks the location for each user by referring to the detected location in operation S310 and the identified user in operation S340 (S350).

On the other hand, if the user's body characteristics are detected in step S320 (S320-Y), the location tracking server 200, based on the body characteristics detected in step S320, who is the location is detected in step S310 In operation S360, the operation S350 is performed.

The location tracking result in step S350, as well as reference to the location tracking for the multi-user, can predict the next behavior of the user, can be used for monitoring the patient emergency, as well as can be used for monitoring the child care.

4. Example of location tracking result

FIG. 3 illustrates a location tracking result when one woman P1 and one man P2 live in a home with multiple users. Here, P1 is a non-smoker, but P2 is assumed to be a smoker, and not only has a habit of mainly using a specific location when using a sofa or a table chair, but also assumes that P1 uses kitchen products more frequently than P2.

As shown in FIG. 3, through the user's height (key) detection by the distance detecting sensor 110 of the front door, "P2" is "returned" and located in the "front door", and adjacent sensing provided in a sink, a gas range, and a refrigerator. The user by the sensor 110, the "P1" is located in the "kitchen" for "cooking", the user by the detailed position detection sensor 140 provided in a specific part of the closet (for example, the left side of the closet) "P2" is located in the "room" where the wardrobe is provided to "change clothes" through the detection, ..., "P2" is detected by the user height (key) detection by the distance sensor 110 of the porch " It appears that you are in the "front door" for work.

In FIG. 3, the locations detected by the users are connected by user, and these connections correspond to the location movement trajectory which is a result of the location tracking of the users.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

110: distance detection sensor 120: weight detection sensor
130: activity detection sensor 140: detailed position detection sensor
150: proximity detection sensor 160: smoke detection sensor
170: usage detection sensor 200: location tracking server

Claims (14)

Detecting a location of the user;
Detecting the use of objects by the user;
Determining who the user is among the plurality of users based on the object usage status; And
Repeating the above steps, separately tracking the location of the user from other users; and
The use condition of the article,
Multi-user location method, characterized in that different for the plurality of users.
delete The method of claim 1,
The article use situation includes a article use position,
And wherein the object use location is different for the plurality of users.
The method of claim 1,
The article use fact includes use article information,
Multi-user location tracking method characterized in that the object of use is different for the plurality of users.
The method of claim 1,
The article use fact includes article use time,
And wherein the article use time is different for the plurality of users.
The method of claim 1,
The article use status includes the number of article usages,
And the number of times of use of the object is different for the plurality of users.
The method of claim 1,
Sensing body characteristics of the user; And
Based on the physical characteristics, determining who the user is among the plurality of users; multi-user location tracking method further comprising.
A first sensor detecting a location of a user;
A second sensor for detecting an actual use of an object by a user; And
A location tracking server that grasps the user who is detected by the first sensor based on the object usage detected by the second sensor, and tracks the location of the user separately from other users. Including;
The use condition of the article,
Multi-user location system, characterized in that different for the plurality of users.
delete The method of claim 8,
The article use situation includes a article use position,
And the location of the object use is different for the plurality of users.
The method of claim 8,
The article use fact includes use article information,
Multi-user location tracking system characterized in that the object of use is different for the plurality of users.
The method of claim 8,
The article use fact includes article use time,
And wherein the article use time is different for the plurality of users.
The method of claim 8,
The article use status includes the number of article usages,
And the number of times of use of the object is different for the plurality of users.
The method of claim 8,
Further comprising: a third sensor for sensing the physical characteristics of the user,
The location tracking server,
And determining who the user is from among the plurality of users based on the physical characteristics sensed by the third sensor.

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