WO2014098327A1

WO2014098327A1 - Method and device for estimating travel information through combination of measured results on motion by region

Info

Publication number: WO2014098327A1
Application number: PCT/KR2013/004444
Authority: WO
Inventors: 윤재석; 원광호; 김재호; 이상신; 안일엽; 송민환
Original assignee: 전자부품연구원
Priority date: 2012-12-17
Filing date: 2013-05-21
Publication date: 2014-06-26
Also published as: KR101492061B1; KR20140091786A

Abstract

Provided is a method and device for estimating travel information through a combination of measured results on motion by region. The device for estimating travel information according to an embodiment of the present invention includes sensors measuring motion in different measurement regions in a target area and a processor combining results measured by sensors and estimating travel information generated in the target area. Accordingly, there may be an advantage in that it is possible to obtain particular travel information at low cost.

Description

Method and apparatus for estimating motion information by combining motion measurement results for each area

The present invention relates to a method and apparatus for estimating movement information, and more particularly, to a method and apparatus for estimating movement information on a movement occurring in a target area.

CCTV cameras and PIR sensors (Pyroelectric InfraRed Sensors) are the representative equipment that can monitor the movements occurring in the target area.

Cameras have the advantage of detecting motion relatively accurately, but because they are expensive equipment, they are inadequate in situations where very high accuracy motion detection is not required.

Although the PIR sensor 10 shown in FIG. 1 can detect motion at low cost, movement information that can be detected is very limited. That is, the PIR sensor 10 can only detect the fact that a motion has occurred in the target area, and thus can be used only for an automatic lighting system in a bathroom, a staircase, a porch, and the like. That is, there is a problem that it is impossible to grasp specific movement information using the PIR sensor 10.

The present invention has been made to solve the above problems, an object of the present invention is to provide a low-cost equipment / elements to specifically recognize the movement information about the movement occurred in the target area, The present invention provides a method and apparatus for estimating motion information through a combination of motion measurement results for each region.

According to an aspect of the present invention, there is provided a motion information estimating apparatus comprising: sensors for measuring motion in different measurement areas within a target area; And a processor which combines the measurement results of the sensors to estimate movement information occurring in the target area.

The apparatus for estimating movement information according to an embodiment of the present invention may further include a storage unit in which the measurement results are matched with the movement information and stored in a DB. The processor may further measure the measurement in the DB stored in the storage unit. The movement information matched with the result may be searched to estimate the movement information.

The DB may learn and generate measurement results generated according to different movements.

The movement information may include at least one of a moving direction, a moving distance, a moving speed, and a moving height.

In addition, the sensors may be partly covered with a portion of the cover to detect after irradiating infrared rays to the different measurement areas.

In addition, some of the measurement areas may overlap each other.

In addition, the measurement areas may be arranged in a form of radiation in which the central areas overlap each other.

On the other hand, according to another embodiment of the present invention, a method for estimating motion information may include: measuring motion in different measurement areas within a target area; And combining the measurement results in the measuring step to estimate movement information generated in the target area.

As described above, according to the present invention, it is possible to specifically estimate the movement information on the movement occurring in the target region by combining the movement measurement results for each region using the sensors, thereby securing the specific movement information at low cost. You will be provided.

1 is a view showing the appearance of a PIR sensor covered with a cover,

2 is an external perspective view of the PIR cluster;

3 shows a target area and a measurement area;

4 to 7 are graphs illustrating sensor signals generated and output when different movements occur in a measurement target area;

8 is a block diagram of a motion information estimating apparatus according to a preferred embodiment of the present invention.

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

2 is an external perspective view of the PIR cluster 110 used in the motion information estimating apparatus according to the preferred embodiment of the present invention.

The PIR cluster 110 is a collection of PIR sensors 110-1, 110-2, 110-3, and 110-4 for measuring movement occurring in the target area in a plurality of measurement areas separated from the target area.

The PIR cluster 110 may be installed on the ceiling of a building to measure movement in the building downward.

The PIR sensors 110-1, 110-2, 110-3, and 110-4 have different parts of the sensor cover as shown in FIG. 2 so that the PIR sensors 110-1, 110-2, 110-3, and 110-4 can detect different irradiation areas after irradiation with infrared rays. It is hidden. In FIG. 2, the hatched portions are hidden, and they are preferably implemented by a material having high reflectance.

1) PIR sensor-1 (110-1) is a sensor cover is opened in the "-" direction, to observe the movement occurred in the measurement target area (○) shown in Figure 3 in the "200-1" region,

2) PIR sensor-2 (110-2) is a sensor cover is opened in the direction "|", and observes the movement occurring in the measurement target area (○) shown in Figure 3 in the "200-2" region,

3) In the PIR sensor-3 110-3, the sensor cover is opened in the "/" direction, and the movement generated in the measurement target region (○) shown in FIG. 3 is observed in the "200-3" region,

4) In the PIR sensor-4 110-4, the sensor cover is opened in the direction of " ＼ " to observe the movement occurring in the measurement target region ○ shown in FIG. 3 in the " 200-4 " region.

As shown in FIG. 3, the measurement areas of the PIR sensors 110-1, 110-2, 110-3, and 110-4 constituting the PIR cluster 110 appear to overlap some areas. . Specifically, the measurement areas are arranged in a radiation form in which the central areas overlap each other.

Since the measurement area is different, even if one movement occurs in the measurement object area (○), the PIR sensors 110-1, 110-2, 110-3, and 110-4 constituting the PIR cluster 110 are included. Are different from each other (ie, sensor signals generated and output from the PIR sensors 110-1, 110-2, 110-3, and 110-4).

1) FIG. 4 illustrates a sensor signal generated and output by the PIR sensors 110-1, 110-2, 110-3, and 110-4 when the user enters the measurement target area ○ in the direction of "→". Is a graph showing

2) FIG. 5 illustrates a sensor signal generated and output by the PIR sensors 110-1, 110-2, 110-3, and 110-4 when the user enters the measurement target area ○ in a direction ←. Is a graph showing

3) FIG. 6 illustrates a sensor signal generated and output by the PIR sensors 110-1, 110-2, 110-3, and 110-4 when the user enters the measurement target area ○ in the direction of "↑". Is a graph showing

4) FIG. 7 illustrates a sensor signal generated and output by the PIR sensors 110-1, 110-2, 110-3, and 110-4 when the user enters the measurement target area ○ in the direction of “↓”. This is a graph.

As shown in each of FIGS. 4 to 7, it can be seen that for one movement in the measurement target area (○), the PIR cluster 110 generates four different sensor signals.

8 is a block diagram of a motion information estimating apparatus according to a preferred embodiment of the present invention. As shown in FIG. 8, the apparatus for estimating motion information according to the present embodiment includes a PIR cluster 110, a signal processor 120, a processor 130, and a storage 140.

The PIR cluster 110 has PIR sensors 110-1, 110-2, 110-3, and 110-4 designed to react differently to movement in the target area, as described above.

The signal processor 120 performs signal processing on sensor signals output from the PIR sensors 110-1, 110-2, 110-3, and 110-4. Signal processing performed by the signal processor 120 includes amplification, noise removal, A / D conversion, and the like.

The processor 130 operates in two modes, a learning mode and an estimation mode, which will be described in detail below.

The learning mode generates different patterns of movement in the measurement target region of the PIR cluster 110, and is measured / generated by the PIR sensors 110-1, 110-2, 110-3, and 110-4. In this mode, the sensor signals are matched with the movement information and stored in a DB in the storage unit 140.

Here, the movement information includes a moving direction, a moving distance, a moving speed and a moving height. If there are four movement directions (→, ←, ↑, ↓), three movement distances (long, medium, and short), three movement speeds (fast, normal and slow), and moving heights (height of moving body) If is divided into three (high, low), the movement information pattern is 72 (= 4 × 3 × 3 × 2).

Thus, since there are 72 entries of the DB generated in the learning mode, four sensor signal patterns are stored in one entry, so that a total of 288 sensor signal patterns are stored in the DB. The sensor signal contained in the DB can be implemented as an average of several learning results.

The estimation mode is a mode for estimating movement information indicating a motion occurring in the target area. The DB stored in the storage 140 in the learning mode is referred to the movement information estimation.

In detail, the processor 130 stores movement information matched to patterns of sensor signals that are the measurement results of the PIR sensors 110-1, 110-2, 110-3, and 110-4 in the learning mode. Movement information estimation is performed by searching the DB stored in 140.

That is, in the estimation mode, the processor 130 combines the measurement results of the PIR sensors 110-1, 110-2, 110-3, and 110-4, and stores the DB stored in the storage 140 in the learning mode. Based on this, it can be said to estimate the movement information about the movement occurring in the target area.

So far, the apparatus for estimating motion information and the PIR cluster 110 applicable thereto have been described in detail.

The PIR sensor mentioned in the above embodiment is a kind of sensor for detecting a motion, and of course, the PIR sensor may be replaced with a general infrared sensor as well as other types of motion detection sensors.

In addition, the number of PIR sensors constituting the PIR cluster 110 is assumed to be four, which is merely an example for convenience of description. That is, the number of PIR sensors constituting the PIR cluster 110 may be two, three or five or more, which is a matter of choice.

The angles formed by the opening directions of the PIR sensor cover decrease as the number of PIR sensors increases, and decrease as the number of PIR sensors decreases. Therefore, as the number of PIR sensors increases, it is possible to estimate the movement information more precisely. However, since this increases the learning amount and the DB, it is important to appropriately select the number of PIR sensors.

Meanwhile, in the above embodiment, it is assumed that the opening directions (measurement areas) of the PIR sensor cover are radial, but this is merely illustrative and can be implemented differently. For example, PIR sensor-1 110-1 measures the upper region, PIR sensor-2 110-2 measures the lower region, and PIR sensor-3 110-3 measures the left region. In addition, even when the PIR sensor-4 110-4 is deformed to measure the right region, the technical idea of the present invention is applicable.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims

Sensors for measuring movement in different measurement areas within the target area; And

And a processor which combines the measurement results of the sensors to estimate movement information generated in the target area.
The method of claim 1,

The storage result is matched with the movement information and stored in the DB; further includes,

The processor,

And moving information matched with the measurement result from the DB stored in the storage unit to estimate the moving information.
The method of claim 1,

The DB,

The apparatus for estimating movement information, characterized by learning by generating measurement results generated according to different movements.
The method of claim 1,

The movement information,

And at least one of a moving direction, a moving distance, a moving speed, and a moving height.
The method of claim 1,

The sensors,

And a part of the cover is differently covered so as to detect and irradiate infrared rays to the different measurement areas.
The method of claim 1,

The measurement areas,

The apparatus for estimating movement information, wherein some regions overlap each other.
The method of claim 6,

The measurement areas,

The mobile information estimation device, characterized in that the central region is arranged in the form of radiation overlapping each other.
Measuring motion in different measurement areas within the target area; And

Estimating movement information generated in the target area by combining the measurement results in the measuring step.