KR101655969B1 - Device and method of protecting patients fall and hurt by analyzing image - Google Patents

Abstract

The present invention relates to an apparatus and a method for preventing an accident that a patient falls on a bed, comprising a photographing unit for photographing a patient lying on a bed, a display unit for displaying an image photographed by the photographing unit, A setting unit for setting a warning line to be a criterion for judging the risk of fall, and a monitoring unit for monitoring images taken on the basis of the warning line set in the setting image, and judging that there is a risk of falling if the warning line is crossed by the patient And a warning unit for informing a warning situation to the outside when the control unit judges that there is a risk of a fall, so that a bed where the patient is lying is photographed, A device and a room to prevent a patient's fall through a method of warning that the patient is in danger of falling when the position is invaded by the patient It is about the law.

Description

TECHNICAL FIELD [0001] The present invention relates to a device and a method for preventing fall of a patient through image analysis,

The present invention relates to an apparatus and a method for preventing an accident that a patient falls on a bed, and more particularly, to an apparatus and method for preventing an accident when a patient falls from a bed, It prevents the fall of the patient who can actively and efficiently cope with the fall of the patient without the caregiver (caregiver) by providing a device to prevent the patient from falling, and to warn the patient when the patient moves in a direction in which the patient falls from the bed. And more particularly,

Falling from a bed is one of the most serious accidents that can occur when a caregiver is absent from a sick patient. Prevention or post-treatment is essential because sickness sufferers may suffer severe injuries from fall alone.

In general, a safety bar is installed on the side of the bed to prevent fall accidents. However, such a safety bar may cause inconvenience to the patients lying on the bed and the feeling of restraint. In addition, There is a risk that this can happen.

In order to overcome the existing weakness of the fall detection method and to prevent the falling fall more effectively, the fall prevention detection method is largely divided into an image-based fall detection method, a falling fall detection method using special clothes equipped with sensors, And the method of detecting falls by the combination of sensors installed at the point where the failure occurs.

An image-based fall detection method is a method of obtaining image data through a video device and processing it with a signal processing technique to find out whether the patient has fallen or not, but there is no device for restricting the patient, It is difficult to precisely detect the position of the patient when the patient is covered with foreign substances such as bedding, and it is difficult to precisely detect the fall because the fall detection is performed indirectly through signal processing.

In addition, in the case of fall detection using a special wearing apparel equipped with a sensor, an accelerometer or the like must always be attached to the patient, so that the special clothes equipped with the sensor must always be worn by the patient or attached to a specific part of the patient, Or discomfort.

The method of detecting the fall of the patient by the combination of the sensors installed at the point where the patient falls is vulnerable to the peripheral elements such as the external material around the bed, which makes it difficult to realize the precision of detecting the fall.

As described above, the conventional techniques for preventing falls are such that after the patient falls from the bed, the patient warns the patient to fall outside, and there is a lack of preventing the fall in advance, or physical and electrical means are imposed on the patient, In addition to the inconvenience, there is a problem that only the method of notifying the patient of the fall and notifying the outside is focused, and the part for physically responding to the fall and preventing the fall itself is not mentioned at all.

Laid-Open Patent Publication No. 10-2012-0114629: Fall detection method using image processing and image processing device therefor

Accordingly, the present invention has been proposed in consideration of the above-mentioned matters, and it is an object of the present invention to provide a method and apparatus for capturing a bed where a patient is lying, designating a position where a fall- It is an object of the present invention to provide a device for preventing fall of a patient by warning that there is a risk of falling.

In addition, the present invention can prevent the patient from falling himself or herself by taking physical and electrical actions on the bed, when the patient is determined that the possibility of falling is high through the image analysis of the patient, and thus can actively and positively cope with the fall of the patient It is an object of the present invention to provide an apparatus for preventing fall of a patient.

Further, the present invention provides a method for preventing fall of a patient, which can physically prevent a fall of a patient by using a device for preventing the fall of the patient, And to provide the above objects.

According to an aspect of the present invention, there is provided an apparatus for preventing falls of a patient through image analysis, including a photographing unit for photographing a patient lying on a bed, a display unit for displaying an image photographed by the photographing unit, A setting unit configured to set a position of a warning line to be used as a criterion for determining a risk of falling in an image displayed on the display unit; a control unit configured to determine a possibility of a fall of the patient based on the warning line set by the setting unit; And a warning unit for outputting a warning signal to the outside when it is determined that the possibility of falling is high.

In the embodiments of the present invention, the display unit is a touch screen, and the setting unit is configured to set an alarm line by touching the display unit.

In the embodiments of the present invention, the setting unit can always re-adjust the position of the warning line.

In the embodiments of the present invention, the warning line is two lines set inside the bed photographed in the image and adjacent to both sides of the bed, and the control unit determines that any one of the warning lines It is determined that there is a risk of fall and the warning unit is operated.

In the embodiments of the present invention, the setting unit may further set a risk line adjacent to both side edges of the bed or outside edges of the bed, the risk being immediately adjacent to both sides of the bed, The warning unit is operated.

In the embodiments of the present invention, the apparatus may further include a side rail coupled to both sides of the bed, and configured to be driven by the control unit when the warning unit is operated to form walls on both sides of the bed.

In the embodiments of the present invention, the apparatus includes a storage unit for storing an image captured by the imaging unit, and a control unit connected to the wired / wireless communication network to receive an image of the imaging unit, And a communication unit for transmitting the information to the device.

In the embodiments of the present invention, the apparatus may further include a call unit connected to the communication unit via a wireless communication unit, the call unit being capable of confirming a fall risk of the patient and repositioning the warning line in place of the setting unit.

In the embodiments of the present invention, the photographing unit may further include an infrared photographing unit for photographing even in a dark environment.

In the embodiments of the present invention, the control unit determines that the entire image taken by the photographing unit is displaced or the bed position is changed, .

In the embodiments of the present invention, when the part of the body corresponding to the preset ratio of the body of the patient exceeds the warning line, the controller may determine that the possibility of falling is high.

In the embodiments of the present invention, the control unit may determine the likelihood of a fall of the patient differently according to the direction in which the patient crosses the warning line.

A method for preventing fall of a patient through image analysis to accomplish the object of the present invention comprises the steps of: displaying an image taken by a display unit at a photographing unit; and when a setting unit is over a patient displayed on the display unit, The method comprising the steps of: setting an alarm line for determining whether there is a risk of falling in a bed adjacent to an edge of the bed; monitoring whether or not the patient exceeds the warning line in the image; The control unit may determine that there is a risk of falling, and the control unit drives the warning unit to output a warning signal.

In the embodiments of the present invention, the setting unit may set the warning line together with the setting unit adjoining both side edges of the bed or outside edges of the bed.

In the embodiments of the present invention, the setting step of the setting section may set an effective line that defines a range in which the setting section will detect that the patient falls over the warning line set on the image.

In the embodiments of the present invention, the display unit may further include a step in which the storage unit stores the image photographed by the photographing unit, after displaying the image photographed by the photographing unit.

In the embodiments of the present invention, the control unit may further include a step of driving the side rails to form walls for blocking the movement of the patient on both sides of the bed, do.

In the embodiments of the present invention, the control unit may further include a step of transmitting the information of the patient who is at risk of falling to the calling unit through the communication unit, after the step of determining that the control unit is in danger of falling.

The apparatus and method for preventing the fall of the patient through the image analysis as described above have the following effects.

First, the present invention monitors a patient on a bed and, if there is a risk of falling, informs the patient of the risk of a fall or alerts the patient to prevent a fall accident in advance.

Second, it is possible to prevent a patient from falling by setting a warning line that is a criterion for the possibility of fall of the patient and preliminarily determining whether or not to fall based on the warning line.

Third, if a danger line is additionally set outside the warning line and the patient crosses the danger line, the patient is judged to have fallen out of the bed and informed to the outside, so that when the actual patient falls, I can take it.

Fourth, since the warning line and the danger line for preventing the patient's fall can be set directly on the image taken by the user without taking any additional action to the patient, it is possible to set the warning line and the danger line, You can install it anywhere.

Fifth, the storage unit records and records the images of the patient, analyzes the past state of the patient or the sleeping habit of the patient when necessary, and applies the fall prevention program and apparatus separately for each patient.

Sixth, the communication department can transmit the image of the patient to the outside to remotely identify the patient and take action.

Seventh, when the patient is in danger of falling, the communication department reports it to the medical staff, so that the patient can be protected even if the guardian does not reside with the patient.

Eighth, when the photographing angle of the photographing unit changes due to an external impact or the like, the control unit detects the change and adjusts the photographing angle of the photographing unit to a predetermined state to prevent a situation in which the photographing state is poor and the patient can not judge the fall .

Ninth, when the possibility of falling of the patient is high, the side rail provided in the bed is actuated to physically block the patient from falling out of the bed, so that the patient can be actively and positively prevented from falling.

The tenth is to provide a ward that does not have a caregiver (caregiver) by preparing for the most cases in which a patient falls, from preliminary judgment of the patient's fall to informing the patient from the outside, And the patient's medical expenses.

For the eleventh time, it is possible to considerably reduce the damage of a hospital caused by a fall through a device and a method for preventing a patient from falling and recognizing the fall.

1 is a perspective view of a monitoring device according to embodiments of the present invention.
2 is a block diagram illustrating an apparatus according to embodiments of the present invention;
FIGS. 3A and 3B are diagrams for explaining setting of warning lines and dangerous lines, valid lines, and determination of a fall of a patient using a setting unit according to embodiments of the present invention; FIG.
4 is a diagram for explaining that a communication unit communicates with an external device according to embodiments of the present invention;
5 is a diagram for explaining a calling unit according to the embodiments of the present invention.
FIG. 6 is a conceptual view for explaining a bed to which a side rail is applied according to another embodiment of the present invention; FIG.
7 is a perspective view for explaining a bed according to an embodiment of the present invention;
FIG. 8 is a flowchart illustrating a method for preventing a fall of a patient through image analysis according to embodiments of the present invention. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a monitoring apparatus according to embodiments of the present invention, and FIG. 2 is a block diagram for explaining an apparatus according to embodiments of the present invention.

1 and 2, an apparatus according to an embodiment of the present invention includes a photographing unit 110 for photographing a patient lying on a bed, a display unit 120 for displaying an image photographed by the photographing unit 110, A setting unit 140 for setting a warning line and a danger line to be used as a criterion for determining a risk of falling in the image displayed on the display unit 120, A controller 130 for judging that the patient is likely to fall when the patient exceeds the warning line and determining that there is a risk of falling if the patient crosses the danger line, 130) outputs a warning signal to the outside when it is determined that there is a risk of falling.

The photographing unit 110 is a device that photographs a scene in a direction that the photographing unit 110 is directed to by using an image pickup device such as a CCD (charge coupled device), and converts the scene into a digital signal.

The display unit 120 includes a LCD, an LED, and an OLED. The display unit 120 is a display unit for displaying an image captured by the photographing unit 110. However, the display unit 120 is not limited to a specific display device, and any display unit for externally displaying the photographed image may be used.

According to the embodiments of the present invention, when a user directs the photographing unit 110 to a patient lying on the bed 40 and then displays a patient and a bed on the display unit 120 while watching an image output to the display unit 120 The position, and the height of the photographing unit 110 so that all of the photographing unit 110 is displayed.

The setting unit 140 sets a warning line and a danger line, which serve as criteria for determining the risk of falling and / or falling of the patient, from the photographed image displayed on the display unit 120 through the input of the user.

In the embodiments of the present invention, the method by which the setting unit 140 sets the warning line and the dangerous line can operate in various ways. For example, when the display unit 120 is configured as a touch screen, when the user controls the warning line on the image of the patient and the bed displayed on the display unit 120 while touching the touch screen, 120) or adjusts an existing warning line.

The setting unit 140 may also receive at least one of the alert lines and the dangerous lines that have been set by the user while photographing and monitoring the patient so as to readjust the position, length, and direction of the warning line and the dangerous line.

The warning line set by the setting unit 140 may be set adjacent to both side edges on the inside of the bed and two on the left and right sides of the patient to be set on both side edges of the bed 40. [ In addition, the danger line set by the setting unit 140 is set at a position adjacent to the edge of the bed or outside the edge of the bed, and the dangerous line may be configured as two left and right sides of the patient, like the warning line.

That is, in the embodiments of the present invention, the setting unit 140 sets the warning line inside the edge of the bed and sets the danger line to the outside of the warning line, And can alert the patient of the risk of falling through risk lines or inform the outside of the risk of falls. Of course, if the patient deviates significantly from the line of risk, he or she may be informed of the fall.

The setting unit 140 may be set and controlled by a controller that is directly operated by the user to set the position of the warning line and the dangerous line. Alternatively, the setting unit 140 may automatically include a function of setting the position of the warning line and the dangerous line in the captured image. That is, the setting unit 140 receives the image from the photographing unit 110, automatically recognizes the bed area in the image, and sets the warning line and the danger line near the edge of the recognized bed area.

When the photographing unit 110 photographs a bed while the photographing unit 110 is fixed, the setting unit 140 automatically recognizes the position of the bed in the image photographed by the photographing unit 110, You can also set up warning lines and danger lines automatically. After the setting unit 140 automatically sets the warning line and the danger line automatically, the user confirms the warning line and the danger line automatically set by the setting unit 140 through the display unit 120, If necessary, the setting unit 140 can readjust the warning line and the danger line.

The control unit 130 determines whether the patient exceeds the warning line and the danger line through the image captured by the photographing unit 110. [ In the embodiments of the present invention, when the patient exceeds the warning line set by the setting unit 140 in the photographed image, the control unit 130 determines that there is a possibility of fall primarily, and if the patient exceeds the danger line It is determined that a risk of falling or a fall has occurred.

The control unit 130 may include a gesture recognition algorithm for recognizing that an object moves on the image. Here, the gesture recognition algorithm can be realized by various element technologies such as visual surveillance, human-computer interaction, and intelligence robot.

In the motion recognition, the motion of a person to be recognized has various meanings such as an 'attitude' expressing how a body part is arranged or an 'motion' indicating a motion of a body having a specific meaning. Here, in the case of 'posture', a skeleton representing a relatively non-deformable position of the body part and connection information between the body parts is representative. This means that only the shape information of a person is abstracted, It has the purpose of delivering efficiently. In addition, 'motion' generally assumes dynamic movement of body parts but also includes static posture. This action has a specific meaning that the actor intends to convey consciously or unconsciously.

In the embodiments of the present invention, the controller 130 determines whether the patient crosses the warning line and the danger line based on the 'posture' information and / or the 'operation' information of the patient.

If the control unit 130 determines that the patient is likely to fall or is in danger of falling, the control unit 130 drives the warning unit 160 to output a warning signal.

That is, the warning unit 130 interlocks with the control unit 130 and outputs a warning signal to the outside. Since a fall occurs when the patient's energy is weakened or the body is not free, the patient can not recognize the risk of falling, so that the patient is cautioned. Therefore, the warning unit 160 recognizes that the patient himself is in danger of falling A warning signal may be output to the patient and a warning signal may be output to the persons around them to allow the patient to recognize that there is a patient with a high risk of falling or a patient with a fall.

The alarm unit 160 may include a speaker to output a predetermined alarm sound, and may include a lamp to output a warning signal through the blinking of the lamp during a warning.

After the warning unit 160 is driven, if the patient is located inside the warning line set on both sides of the bed 40, the control unit 130 determines that the risk of falling is solved and stops the operation of the warning unit 160.

The device for preventing fall of a patient according to the embodiment of the present invention includes a storage unit 135 for storing images taken by the imaging unit 110, a storage unit 135 connected to the wired / wireless communication network, And a communication unit 150 for receiving the risk of falling of the patient determined by the image or control unit 130 and transmitting the received risk to the external device 30.

The storage unit 135 may be any of a flash memory, a hard disk, and a storage device for storing digital data such as a solid state drive (SSD). The user can confirm the past state of the patient, such as a special case where the patient should be intensively observed, through the photographed image recorded in the storage unit 135. [

The communication unit 150 is for providing the external device 30 with an image taken by the photographing unit 110 or a risk of falling of the patient determined by the control unit 130 and occurrence of a fall.

Here, the external device 30 that receives information from the communication unit 150 may be a management system configured in the hospital to collectively manage the status of the patient, or may be a small portable device owned by a medical staff caring for the patient .

The communication unit 150 is connected to a network for transmitting a photographed image or a risk of falling to the external device 30. The communication unit 150 may be a closed network such as a LAN (Local Area Network) or a WAN (Wide Area Network) Or an open network such as the Internet. The Internet can be divided into several services, such as HyperText Transfer Protocol (HTTP), Telnet, File Transfer Protocol (FTP), Domain Name System (DNS), Simple Mail Transfer Protocol (SMTP) Simple Network Management Protocol (NFS), Network File Service (NFS), and Network Information Service (NIS).

The storage unit 135 is not necessarily composed of one device combined with the photographing unit 110 but may be a web site installed in a separate place, And may be configured to receive and store the photographed image transmitted from the communication unit 150 in the form of a server.

A web server is a computer system that is connected to an unspecified number of clients or another server through an open computer network such as the Internet and receives a request to perform a work of a client or another web server and derives a result of the work, It means installed computer software (Web server program).

The device for preventing fall of the patient according to the embodiment of the present invention is connected to the communication unit 150 by radio communication means to confirm the condition of the patient and to readjust the warning line and the danger line on behalf of the setting unit 140 And a calling unit 300 capable of performing a predetermined function.

The calling unit 300 may be connected to the above-described open computer network to perform wireless communication with the communication unit 150. The calling unit 300 may be a pager which can be carried by the medical staff in the hospital individually, or may be a computer placed in a place where the medical staff waits.

In addition, the calling unit 300 can confirm whether or not the patient is in danger of falling, and at the same time can re-adjust the warning line and the danger line set by the setting unit 140. Accordingly, the user can directly readjust the warning line and the dangerous line through the calling unit 140, so that the user does not have to visit the patient's room.

In order to readjust the warning line and the danger line, the calling section 300 includes a display section (not shown) for displaying the image and warning line taken by the photographing section 110 and a danger line, a warning line and a warning line, A controller (not shown) having a function of adjusting the temperature of the liquid.

In addition, the photographing unit 110 according to the embodiment of the present invention may further include an infrared photographing unit 112 for photographing even in a dark environment.

At night, it is common for the patient's room to go out for sleeping, but a typical imaging device can not shoot without illumination. Therefore, the infrared ray photographing unit 112 may further include an infrared ray photographing unit 112 for photographing an object with infrared light to observe a patient even in a dark environment.

It is preferable that an infrared ray lamp (not shown) for irradiating the infrared ray together with the infrared ray photographing unit 112 is also included in the photographing unit. Since the infrared ray is generally invisible to the human eye, You will not be nearly disturbed in taking sleep.

The apparatus may further include a housing 100 surrounding the apparatus according to embodiments of the present invention and a cradle 170 coupled to one side of the housing 100 to support the housing 100 from the ground and fix it in the air .

The housing 100 is configured in the form of a cover for covering and protecting the structures according to the embodiment of the present invention.

The holder 170 is coupled to one side of the housing 100 to support and hold the device from the ground so that it can float in the air.

Thus, the apparatus according to the embodiments of the present invention can prevent and prevent the fall of the patient by providing a configuration for recognizing the possibility of fall of the patient and the occurrence of fall directly from the image.

FIGS. 3A and 3B are diagrams for explaining setting of warning lines and dangerous lines, valid lines, and determining a fall of a patient using a setting unit according to the embodiments of the present invention.

3A and 3B, when the display unit 120 displays the photographed image, the setting unit 140 sets the positions of the warning lines (1) and (2) in the photographed image. The warning lines ((1), (2)) are set on the inside of the bed 40 adjacent to both side edges of the bed 40 among the images displayed on the display unit 120.

In addition, the setting unit 140 also has a function of readjusting the positions of the warning lines ((1), (2)). If the bed 40 is moved or moved in a place where the photographing unit 110 is installed, the controller 130 can not correctly determine the fall of the patient. Therefore, the setting unit 140 can receive the input from the user or recognize the movement of the object to be photographed and adjust the warning lines ((1), (2)) again.

When the setting unit 140 sets warning lines ((1), (2)) on the image, the control unit 130 monitors the displacement between the warning lines (1) and (2) in the image. When the object displaced in the corresponding range, that is, the body of the patient, exceeds the warning line (1), (2) during monitoring, the controller 130 determines that the possibility of a fall is high.

(1), (2), the control unit 130 sets the warning line ((1), (2)) while the patient is moving outside the warning lines ), (2)) is not considered a fall risk. That is, if the body part of the patient exceeds the warning line 1 in the 'a' direction on the basis of the warning line 1 located on the right side of the patient, the controller 130 does not determine that the fall will occur, It is determined that a fall occurs when a part of the body exceeds the warning line 1 in the direction of 'b'.

The setting unit 130 further sets the risk lines A and B adjacent to both sides of the bed 40 or outside edges of the bed 40 photographed on the image Can be set.

The risk lines (A) and (B) are located on the edge or outside of the bed 40 so that the risk lines ((A), (B) ) Means that there is a greater risk of falling than when the warning line ((1), (2)) is exceeded, or that a fall accident has already occurred. The risk lines ((A) and (B)), as well as the warning lines, are the risk of falling if the body part of the patient crosses the hazard lines (A) and (B) .

Before passing the hazard lines (A) and (B), the patient first crosses the warning line ((1), (2)). Therefore, when the patient exceeds the danger lines (A) and (B), the warning unit 160 does not start outputting the warning signal but the patient has already exceeded the warning line ((1), (2) Should change the warning signal that it outputs. That is, when the patient exceeds the danger line ((A), (B)), a warning signal different from that when the warning section 160 exceeds the warning line ((1), (2) An increase in the volume of the warning sound when the warning signal is output by the user, and a warning sound output with the other pattern.

As described above, since the risk line ((A), (B)) indicates that the patient is in greater danger of falling than the warning line ((1), (2) (A), (B)) and the warning line ((1), (2)) overlap each other or two warning lines (1, (A) and (B)) can not be positioned between the hazard lines (A) and (B).

The setting unit 140 can additionally set valid lines ((a), (b)) that can limit only the range of the warning line ((1), (2)) to be detected by the patient.

The distances and relative positions of the bed 40 and the photographing unit 110 differ from each other in the environment to which the embodiment of the present invention is applied so that the range in which the patient can not act on the warning lines (1) and (2) Can be. As shown in Fig. 3A, the upper and lower range of the bed 40 corresponds to this. That is, the control unit 130 determines whether or not the alarm line ((1), (2)) and the dangerous lines (A), (B) existing between the valid lines It will be judged whether or not. Therefore, the effective line ((a), (b)) sets the effective range to be monitored by the control unit 130 out of the range of the warning lines ((1), (2) And can further reduce judgment errors caused by a mobile object other than a patient.

The control unit 130 determines that the entire image captured by the photographing unit 110 is displaced or the bed 40 is changed to an environment where the risk of falling of the patient is no longer determined, Can be operated.

According to the embodiment of the present invention, it is preferable that the photographing unit 110 is fixed in one place to photograph the bed 40, and the bed 40 to be photographed is also fixedly photographed. Accordingly, when the controller 130 monitors the bed 40 and the surrounding background which are hardly changed in the image together with the patient and a considerable displacement occurs such that the surrounding object such as the bed 40 or the background which has been fixed without movement changes It is determined that the image can not be monitored any more and the warning unit 160 is operated. At this time, the medical staff recognizing the warning signal of the warning unit 160 adjusts the photographing range of the photographing unit 110 again to monitor the accurate patient condition, and the setting unit 140 sets the warning line ( 2) and the hazard line ((A), (B)).

Furthermore, the control unit 130 may be configured to determine whether or not the warning unit (1), (2), and (3) (1), (2)) and the dangerous lines ((A), (B)), it is necessary for the control unit The warning unit 160 can be driven. For example, if only the areas where the patient is free to move during sleep, such as the patient's arm or leg, exceed the warning lines ((1), (2)) and the hazard lines ((A), The control unit 130 determines that the warning unit 160 is in a state where more than 20% of the body of the patient exceeds the warning line ((1), (2)) and the danger line ((A) ) Can be determined.

4 is a diagram for explaining that a communication unit communicates with an external device according to embodiments of the present invention.

Referring to FIG. 4, the communication unit 150 may transmit information to the external device 30 through a wireless communication method or a wired communication method.

Here, the external device 30 may be a computer device that receives a plurality of photographed images as a system for managing the state of a patient configured in a hospital, as shown in the figure, or may be a portable device held by a medical staff in a hospital.

In the case where the external device 30 is a system for managing the patient's condition in a hospital, the system can be configured to simultaneously monitor the risk of falls of various patients, thereby providing a patient's room without a guardian, . ≪ / RTI >

5 is a diagram for explaining a calling unit according to embodiments of the present invention.

Referring to FIG. 5, an apparatus according to an embodiment of the present invention may further include a call unit 300 connected to the communication unit 150 and wireless communication means to receive patient status information.

The calling unit 300 is a device that a medical staff caring for a patient can carry. The calling unit 300 may be a dedicated portable device capable of wireless communication with the communication unit 150, but may also be manufactured as an application that can be installed in a smart phone widely used in modern times.

When the control unit 130 determines the risk of a fall of the patient, the control unit 130 transmits the information to the calling unit 300 through the communication unit 150. When the calling unit 300 receives the transmitted signal, And is displayed on the display unit provided in the calling unit 300.

When the call unit 300 receives the information of the patient who is at risk of falling, the display unit is provided in the calling unit 300 so that the medical staff can immediately go to the patient, and as shown in FIG. 5, The information such as the position of the room is displayed on the display unit.

Here, the calling unit 300 can reset the warning lines ((1), (2)) and the dangerous lines (A) and (B) instead of the setting unit 140. That is, the image displayed on the display unit 120 is photographed by the photographing unit 110 and displayed on the display unit of the calling unit 300 in the same manner to check the state of the patient, By touching the touch-screen display, warning lines ((1), (2)) and hazard lines ((A), (B)) can be set.

6 is a conceptual diagram for explaining a bed to which a side rail is applied according to another embodiment of the present invention.

6, the apparatus according to another embodiment of the present invention is formed on both sides of the bed 40. When the control unit 130 operates the warning unit 160, And a side rail 400 that forms a wall so that the bed can not escape out of the bed.

The side rail 400 physically blocks the patient from moving further out of the bed 40, allowing the clinician to make time to take action. The side rail 400 includes a rail driving unit 410 electrically connected to the control unit 130 and controlled by the control unit 130 and a control unit 130 for raising the rail driving unit 410 when the rail driving unit 410 is driven, And a blocking portion 430 that is a wall on both sides.

As shown in the drawing, the blocking unit 430 is rotatably coupled to the rail driving unit 410 so that when the rail driving unit 410 is driven to rotate, the blocking unit 430 rotates together, Respectively. The rail driving unit 410 is controlled by the controller 130. The rail driving unit 410 and the control unit 130 may be connected to each other by a wire. However, the side rail 400 may also include a wireless communication unit, And control signals may be transmitted through wireless communication to control the driving.

When the rail driving unit 410 is driven, the blocking unit 430 mechanically coupled to the rail driving unit 410 is lifted to prevent the patient from falling off the bed on both sides of the bed 40.

Also, if the patient returns to between the two warning lines (1) and (2) and the likelihood of a fall is low, a medical staff member such as a doctor or nurse confirms & So that the blocking unit 430 can be blocked.

Alternatively, the control unit 130 may automatically lower the blocking unit 430 in the reverse direction to the rail driving unit 410.

7 is a perspective view illustrating a bed according to an embodiment of the present invention.

Referring to FIG. 7, the housing 100 is fixed in the air by the cradle 170 to monitor the bed 40. As shown in FIG. 5, the holder 170 is formed at one end of a clip that can be fixed to the bed 40 lying on the patient, or can be mounted on a pole used when a linger is normally applied in a hospital And may be implemented in a form that supports the present invention by being fixed directly to the floor, ceiling, or wall.

Next, a driving method of a photographing apparatus for preventing fall of a patient through image analysis according to an embodiment of the present invention will be described.

8 is a flowchart illustrating a method for preventing a patient from falling through image analysis according to embodiments of the present invention.

8, a method according to an exemplary embodiment of the present invention includes a step S1 of displaying an image taken by the display unit 120 at the photographing unit 110 and a step S1 of setting the setting unit 140 at the display unit 120 (1), (2) for determining whether there is a risk of a fall when the patient overturns on the displayed image, (S3) setting the position of the warning line (1), (2)). If the patient exceeds the warning line ((1), (2)) in the image, the control unit (130) (S5), and the control unit (130) drives the warning unit (160) to output a warning signal (S6).

The setting (S3) of the warning line ((1), (2)) in the setting unit 140 is performed when the user of the present invention manually operates the display unit 120 constituted by the button operation or touch screen configured on one side of the housing 100 The setting unit 140 first detects the bed 40 in the image and then sets the two warning lines ((1), (2), and (3)) adjacent to the edge of the bed 40 inside the bed 40, (2)) can be automatically set.

When the warning lines ((1), (2)) are set, the control unit 130 monitors the images on which the warning lines (1) and (2) are set (S4). For monitoring, the control unit 130 includes an image analysis algorithm for tracking an object moving in an image.

The setting unit 140 sets the warning lines ((1), (2)) when the setting unit 140 sets the warning lines ((1) (A) and (B) adjacent to both side edges of the hazard lines (A) and (B).

When the patient exceeds the warning lines ((1), (2)) or the danger lines ((A) and (B)), the warning unit 160 preferably outputs different warning signals. For example, when the warning unit 160 is a speaker, when the patient first crosses the warning line ((1), (2)), the speaker outputs a regularly- (B)), it is possible to output a continuous sound at a higher volume.

The setting unit 140 sets the warning lines ((1), (2)) on the warning line ((1), (2)) set on the image by the setting unit 140 An effective line ((a), (b)) may be set together to define the extent to which the patient will perceive the transgression.

The step S1 of displaying the image captured by the image capturing unit 110 by the display unit 120 may further include the step S2 of storing the image captured by the image capturing unit 110 in the storage unit 135 . At this time, the storage unit 135 may store the image after the setting unit 140 sets the warning lines ((1), (2)) and the dangerous lines (A) and (B) have. The storage unit 135 stores an image photographed by the photographing unit 110, such as a black box, so that the user can see the patient's past when necessary.

The control unit 130 controls the side rails 400 to physically block the movement of the patient on both sides of the bed 40, (Step S7).

The control unit 130 determines whether there is a risk of falling or not (S5). Next, the control unit 130 transmits the information of the patient who is at risk of falling to the calling unit 300 through the communication unit 150 S8).

The communication unit 150 transmits the image or risk of falling by using a wireless communication so that a caregiver or a medical staff can remotely check the risk of a fall of the patient. When the control unit 130 determines the risk of fall of the patient, the information is transmitted through the communication unit 150, and the calling unit 300 in the range where wireless communication is possible receives and displays the information.

Thus, through the method for preventing the patient's fall according to the practice of the present invention, the image of the patient is analyzed to determine the likelihood of falling and the risk of falling, and furthermore, the side rail is operated, It can respond by physically blocking the fall.

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. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

100: housing 110:
112: infrared ray photographing unit 120: display unit
130: control unit 135:
140: setting unit 150: communication unit
160: Warning section 170: Cradle
300: calling unit 400: side rail
410: Rail drive unit 430:
30: external device 40: bed
(1), (2): warning line
(A), (B): Hazardous line
(A), (B): Effective line

Claims (18)

A photographing unit for photographing a patient lying on the bed,
A display unit for displaying the image photographed by the photographing unit,
A setting unit configured to set a position of a warning line as a reference for determining a risk of falling in an image displayed on the display unit;
A control unit for determining a possibility of a fall of the patient based on the warning line set by the setting unit;
And an alarm unit for outputting a warning signal to the outside when the control unit determines that there is a fall possibility,
Wherein the display unit is a touch screen,
Wherein the setting unit is configured to set an alarm line by touching the display unit,
Wherein the warning line is two lines set inside the bed photographed on the image and adjacent to both edges,
The control unit determines that there is a risk of falling even if the patient located between the warning lines exceeds one of the warning lines and operates the warning unit,
Wherein the control unit determines that the entire image captured by the photographing unit is displaced or the bed position is changed, and that the risk of falling of the patient is no longer determined, and the warning unit is operated A device for preventing a patient from falling. delete The method according to claim 1,
Wherein the setting unit is capable of always resetting the position of the warning line. delete The method according to claim 1,
The setting unit may further set risk lines adjacent to both side edges of the bed photographed on the image or both side edges of the bed,
Wherein the control unit operates the warning unit when the patient crosses the danger line. 6. The method of claim 5,
Further comprising a side rail coupled to both sides of the bed and configured to be driven upward when the control unit operates the warning unit to form walls on both sides of the bed. The method according to claim 1,
A storage unit for storing an image shot by the shooting unit;
Further comprising a communication unit connected to the wired / wireless communication network for receiving the image captured by the imaging unit or the risk of falling of the patient determined by the control unit and transmitting the received image to an external device. . 8. The method of claim 7,
Further comprising a calling unit connected to the communication unit via a wireless communication unit to confirm the status of the patient and to readjust at least one of the warning line and the danger line in place of the setting unit. . The method according to claim 1,
Wherein the photographing unit further includes an infrared ray photographing unit for photographing even in a dark environment. delete The method according to claim 1,
Wherein the control unit determines that the patient is likely to fall when a part of the body corresponding to a preset ratio of the body of the patient exceeds the warning line. The method according to claim 1,
Wherein the controller determines a possibility of a fall of the patient differently according to a direction in which the patient crosses the warning line. A step of displaying an image taken by the display unit in the photographing unit,
Setting a warning line inside the bed to a position adjacent to the edge of the bed when the setting unit is over the patient on the image displayed on the display unit,
Monitoring whether the patient exceeds the warning line in the image,
Determining that the controller is in danger of falling if the patient exceeds the warning line in the captured image,
The control unit driving the side rails to form walls for blocking movement of the patient on both sides of the bed,
And the control unit driving the warning unit to output a warning signal,
Wherein the display unit is a touch screen,
Wherein the setting unit is configured to set an alarm line by touching the display unit. 14. The method of claim 13,
Wherein the setting unit sets the warning line,
And setting a risk line adjacent to both side edges of the bed at both side edges of the bed or outside the bed. 15. The method of claim 14,
Wherein the setting unit sets the warning line together with an effective line that defines a range in which the setting unit detects that the patient falls over the warning line set on the image. / RTI > 14. The method of claim 13,
Further comprising the step of storing the image captured by the image capturing unit after the display unit displays the image captured by the image capturing unit. delete 14. The method of claim 13,
The control unit may further include a step of transmitting the information of the patient who is at risk of falling to the call unit through the communication unit, after the step of determining that there is a risk of falling. How to prevent.

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