JP3215201U - Monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring device capable of avoiding a fall of an object person on a bed with as few sensors as possible, thereby facilitating sensor installation work and reducing component costs required for the sensors. provide. SOLUTION: A detector 5 is provided on the foot side or the head side, preferably the foot side, of a bed B in a hospital room R, and the detector 5 is a region higher than a predetermined dimension from the surface of the bed B. When a target person exists in the system, it is detected and an alarm signal is transmitted. As a result, the detector 5 detects when the subject on the bed B wakes up, but does not detect the subject lying on the bed. In the hospital room R, a transmitter / receiver 6 that receives an alarm signal from the corresponding detector 5 is also arranged. When the transmitter / receiver 6 receives an alarm signal from the corresponding detector 5, the alarm signal Is transmitted from the room R to the outside. [Selection] Figure 1

Description

  The present invention relates to a monitoring device for monitoring a subject on a bed.

  For example, if a hospitalized patient falls from bed while sleeping, or if a patient with dementia wakes up and walks in the hospital, the nurse or If caregivers do not detect such facts as soon as possible, it may lead to a serious accident, so if they monitor the condition of the subject on the bed and detect the subject's getting out of bed, the nurse or caregiver will wait. A device has been developed that provides notification to a location remote from the subject, such as a station. Patent Document 1 described later as such a monitoring device discloses the following.

  6A and 6B are schematic diagrams showing how the monitoring device disclosed in Patent Document 1 is used. FIG. 6A is a plan view and FIG. 6B is a side view. The monitoring device includes a first infrared sensor 11 having a detection range on the bed B, second infrared sensors 12 and 12 having a detection range on the side of the bed B and above the bed B, and a first infrared sensor. 11 and a display unit (not shown) for displaying whether or not the subject is present on the bed according to outputs from the second infrared sensor 12 and the second infrared sensor 12 and a result of determination by the determination unit. And. The first infrared sensor 11 described above is disposed at the center of the end of the head side of the bed B and at a position 0.3 m above the bed, and the detection range D11 of the first infrared sensor 11 is horizontal in the vertical direction. The range is from the position to the depression angle of 50 °, and the left-right direction is an area from the central axis passing through the center of the bed B in the width direction to 15 ° in the left-right direction. The subject H lying on the bed B can be detected by the first infrared sensor 11.

  On the other hand, the second infrared sensors 12, 12 are arranged at a position 0.1 m apart from the first infrared sensor 11 in the left-right direction, and the detection ranges D12, D12 of both the second infrared sensors 12, 12 are up and down. The direction is a range from a horizontal position to an elevation angle of 30 °, and the left-right direction is parallel to the central axis passing through the center of the width direction of the bed B and is 15 from the axis passing through the second infrared sensors 12, 12 to the left-right direction. It is made in the region from ° to 45 °. The second infrared sensors 12 and 12 can detect the subject H standing on the side of the bed B.

  When the subject H lying on the bed B wakes up and sits on the side of the bed B and stands on the side of the bed B, first, the subject H moves on the bed B. The 1st infrared sensor 11 detects and outputs to a judgment means. Next, since the subject person H moves from the bed B to the side of the bed B and stands there, one of the second infrared sensors 12 and 12 detects it and outputs it to the determination means, Since the target person H no longer exists from the detection range D11 of the 1 infrared sensor 11, the output from the first infrared sensor 11 to the determination means stops. When the outputs from the first infrared sensor 11 and the second infrared sensors 12 and 12 change in this way, the determination means determines that the subject H has stood on the side of the bed B and displays the result. Display on the screen. For example, the display unit is arranged in a nurse station, and a nurse waiting in the nurse station heads for nursing of the subject when the result of detecting the standing of the subject is displayed on the display unit. Be able to.

JP-A-9-66077

  However, in such a conventional monitoring device, since the three sensors of the first infrared sensor 11 and the two second infrared sensors 12 and 12 are necessary, the installation of the sensors 11, 12, and 12 is complicated. In addition, the parts cost required for each sensor 11, 12, 12 is high. On the other hand, the determination means displays when the output from the first infrared sensor 11 is input, the output from the second infrared sensor 12, 12 is input, and the output from the first infrared sensor 11 is stopped. Since the target person H on the bed B is displayed on the display part only after being separated from the bed B, the response to the target person H is slow. For example, the bed B of the target person H There was a problem that it was not possible to avoid the fall.

  The present invention has been made in view of such circumstances, and can respond quickly to an object person on a bed with as few sensors as possible, and thereby facilitate the installation work of the sensors. A monitoring device that can reduce the cost of components required for a sensor is provided.

  (1) A monitoring device according to the present invention is a detector that is arranged in the vicinity of a bed on which the subject lies, or that detects the presence or absence of the subject lying on the bed with an infrared detection element and outputs a signal. And a monitoring device that receives a signal from the detector and notifies a warning, wherein the detector is a non-detection region from the surface of the bed to a predetermined height position, In addition, the detection area is a region that faces the surface of the bedding and is higher than the non-detection region, and the detector receives a detection signal from the infrared detection element for a predetermined time or more. And a signal output means for outputting an alarm signal.

  In the monitoring device of the present invention, a detector that detects the presence or absence of a subject lying on a bed with an infrared detection element and outputs a signal, and a notification that receives a signal from the detector and notifies an alarm With a bowl. Here, the detector is arranged, for example, on a frame of a bed on which a person to be monitored lies, or a wall or a support member in the vicinity of the bed.

  Thus, since this monitoring apparatus only installs one detector with respect to one subject person, the installation work of a detector can be performed easily. Moreover, the cost required for the detector can be reduced as much as possible.

  By the way, in the above-described detector, a region from the surface of the bed to a predetermined height position is set as a non-detection region, and a region facing the surface of the bedding and higher than the non-detection region is set as a detection region. On the other hand, the detector includes signal output means for outputting an alarm signal, and the signal output means outputs an alarm signal when a detection signal is given from the infrared detection element for a predetermined time or more. .

  In this way, since the area from the surface of the bed to the predetermined height position is set as a non-detection area, if the subject is lying on the bed, the subject on the bed is detected even if he turns over. The detector will not detect it because it is in the non-detection region of the detector. Thus, erroneous detection can be reduced as much as possible even with a single detector.

  On the other hand, when the subject lying on the bed wakes up, the upper body of the subject enters the detection area of the detector, so the detector detects it and the signal output means can output an alarm signal. Become. Thus, since the detector detects the target person at the timing when the target person lying on the bed wakes up, the target person on the bed can be handled quickly.

  Here, for subjects who are likely to fall from the couch, in many cases, a fall prevention member such as a fence is attached to both sides of the couch, and in such a case, in order for the subject to fall from the couch, It is necessary to get over one of the fall prevention members, but the subject raises the upper body, so the detector detects this and sends an alarm signal. It can prevent falling from the bed.

  In addition, depending on the subject, there is a case where the upper body is woken up from a lying state for a short time and then quickly relieved, but there is no particular problem with this operation, and no action is required by the nurse. For this reason, it is required to avoid sending an alarm signal from the detector. In this monitoring apparatus, as described above, the signal output means is configured to output an alarm signal when the detection signal from the infrared detection element is applied for a predetermined time or longer. Can satisfy the request.

  (2) In the monitoring device according to the present invention, the detection area of the detector is set between a horizontal position and an appropriate elevation angle, and the detector is arranged at a required height from the surface of the bed. It is characterized by being provided.

  In the monitoring device of the present invention, the detection region of the detector is set between the horizontal position and the position of the elevation angle as appropriate, and the detector is disposed at a required height from the surface of the bed. Thus, the detection area and the non-detection area described above are formed. Here, the elevation angle can be set to about 20 ° or more and about 25 ° or less.

  (3) In the monitoring device according to the present invention, the signal output means includes a delay circuit that delays the detection signal from the infrared detection element, a comparator provided with a pair of input terminals, and an alarm that generates an alarm signal. A signal generation circuit, wherein one input terminal of the comparator is connected to an output terminal of the delay circuit, and the other input terminal of the comparator is connected to an output terminal of the infrared detection element. The comparator is configured to transmit an alarm signal from an alarm signal transmission circuit when a signal is input to both input terminals.

  In the monitoring apparatus of the present invention, the signal output means described above includes a delay circuit that delays the detection signal from the infrared detection element, a comparator provided with a pair of input terminals, and an alarm that generates an alarm signal. And a signal generation circuit. One input terminal of the comparator is connected to the output terminal of the delay circuit, and the other input terminal of the comparator is connected to the output terminal of the infrared detection element. When the signal is input to both input terminals, that is, when the detection signal from the infrared detection element is continuously input to the comparator for the delay time set in the delay circuit, the alarm signal An alarm signal is transmitted from the transmission circuit. Thus, the signal output means can be formed with a relatively simple configuration, and the component cost can be reduced as much as possible.

  (4) In the monitoring device according to the present invention, at least two delay circuits are provided, the delay time of one delay circuit is longer than the delay time of the other delay circuit, and the detector includes both A switch for switching the delay circuit is provided.

  In the monitoring device of the present invention, at least two delay circuits are provided, and the delay time of one delay circuit is longer than the delay time of the other delay circuit. The detector is provided with a switch for switching both delay circuits. When the subject wakes up and then lies down again for a relatively short time, the other delay circuit and the comparator are connected by a switch such as a changeover switch, and the subject's operation described above is slow. When a relatively long time is required, one delay circuit and the comparator are connected by a switch. Accordingly, the monitoring device can appropriately perform monitoring according to each of a plurality of subjects.

  (5) The monitoring apparatus according to the present invention further includes a transceiver that receives an alarm signal output from the detector and transmits the alarm signal to the alarm.

  The monitoring device of the present invention further includes a transceiver that receives the alarm signal output from the detector and transmits the alarm signal to the alarm device. Since the detector and the alarm device are arranged at a distance, a certain amount of power consumption is loaded when an alarm signal is transmitted to the alarm device. Therefore, when outputting an alarm signal directly from the detector to the alarm device, it is necessary to provide a cord for connecting to external power such as an outlet. In such a case, the arrangement of the detector is limited. On the other hand, when a transmitter / receiver that receives an alarm signal output from the detector and transmits it to the alarm device is provided, the power consumption of the detector can be reduced as much as possible. The built-in battery can be used. This eliminates the need for connection to external power and allows the detector to be placed at an arbitrary location.

  (6) The monitoring device according to the present invention further includes an imaging device that is arranged in the vicinity of the bed on which the subject is lying or in the vicinity of the bed, and that outputs an alarm signal from the detector. In this case, the image pickup signal is transmitted from the image pickup device to the notification device.

  The monitoring device of the present invention further includes an imager that images the subject on the bed. Similar to the detector described above, such an imager is arranged on a bed on which a subject lies down or in the vicinity of the bed. When an alarm signal is output from the detector, the imaging signal is transmitted from the imaging device to the alarm device. Thereby, in a place separated from the detector, it is possible to grasp the situation of the subject person of the bed to which the alarm signal is transmitted from the image related to the imaging signal. From such an image, it can be determined whether or not an urgent response / treatment is necessary, and an accurate response can be given to the subject.

  (7) A monitoring device according to the present invention includes one or a plurality of portable terminals, a communication device that receives the alarm signal and transmits the alarm signal to the portable terminal instead of or in addition to the alarm The portable terminal is configured to notify an alarm when an alarm signal is transmitted from a communication device.

  In the monitoring device of the present invention, one or a plurality of portable terminals are provided instead of the alarm or in addition to the alarm, and the alarm is sent from the detector to the portable terminal via the communication device. A signal is transmitted. And a portable terminal will alert | report an alarm, when an alarm signal is transmitted from a communication apparatus. Even when a nurse or caregiver visits multiple subjects, even if an alarm signal is sent from a detector placed on a bed on which other subjects lie, Caregivers and the like can know this through a portable terminal and can take prompt action.

  (8) The monitoring device according to the present invention receives one or a plurality of portable terminals, the alarm signal, and the imaging signal instead of the notification device or in addition to the notification device, and transmits them to the portable terminal device. The mobile terminal is configured to issue an alarm when an alarm signal and an imaging signal are transmitted from the communication device and to display an image related to the imaging signal. To do.

  The monitoring device of the present invention includes one or a plurality of portable terminals instead of or in addition to the alarm, and the mobile terminal includes a detector and an imaging device via a communication device. Thus, an alarm signal and an imaging signal are transmitted. When the alarm signal is transmitted from the communication device, the mobile terminal issues an alarm and displays an image related to the imaging signal. Even when a nurse or caregiver visits multiple subjects, even if an alarm signal is sent from a detector placed on a bed on which other subjects lie, A caregiver or the like can know the alarm through the portable terminal and can visually recognize an image related to the imaging signal. As a result, an accurate response can be quickly taken for the subject.

  (9) The monitoring apparatus according to the present invention is characterized in that the detector includes a pyroelectric infrared detection element.

  In the monitoring device of the present invention, the detector includes a pyroelectric infrared detection element, and therefore can detect the movement of the subject having a predetermined temperature. Therefore, when the subject is not moving or an object that does not have a predetermined temperature, such as a curtain, is not detected by the infrared detection element, and the monitoring accuracy by the monitoring device is high.

It is explanatory drawing explaining the example of 1 structure of the monitoring apparatus which concerns on this invention. It is a schematic diagram which shows the usage condition of the detector shown in FIG. FIG. 3 is a block diagram illustrating a configuration example of the detector illustrated in FIGS. 1 and 2. It is explanatory drawing explaining the structure of the monitoring apparatus which concerns on a 2nd form. It is a schematic diagram which shows the usage condition of the image pick-up device shown in FIG. It is a schematic diagram which shows the usage condition of the monitoring apparatus disclosed by patent document 1. FIG.

A monitoring device according to the present invention will be described in detail with reference to the drawings.
Note that the monitoring device described in the present embodiment is an example for explaining the gist of the present invention, and it goes without saying that the present invention includes modifications and alterations without departing from the gist.

(First form for carrying out the invention)
FIG. 1 is an explanatory diagram for explaining a configuration example of a monitoring apparatus according to the present invention, and shows a case where the present invention is applied to a hospital. A plurality of hospital rooms R, R,... Are provided in the hospital, and beds (beds) B, B,. 1 shows a case where one bed B, B,... Is arranged in each hospital room R, R,..., But a plurality of beds are provided in any hospital room R, R,. Needless to say, B, B,.

  A detector 5 is provided on the foot side or the head side of the bed B in the hospital room R, preferably on the foot side, and the detector 5 is a region higher than a predetermined dimension from the surface of the bed B as described later. When a target person exists in the system, it is detected and an alarm signal is transmitted. As a result, the detector 5 detects the upper body of the subject on the bed B, but does not detect it even when the subject lying on the bed turns over. In the hospital room R, a transmitter / receiver 6 that receives an alarm signal from the corresponding detector 5 is also arranged. When the transmitter / receiver 6 receives an alarm signal from the corresponding detector 5, the alarm signal Is transmitted from the room R to the outside.

  On the other hand, a nurse station S on which the nurse waits is provided at a position away from each hospital room R, R,..., And the nurse station S is disposed in each hospital room R, R,. When the alarm signal transmitted from the transmitter / receiver 6, 6,... Is received, the alarm device 2 that notifies the number and alarm of the hospital room from which the alarm signal is started by light and / or sound and / or display is arranged. It is set up.

  When the alarm is notified by the alarm device 2, the nurse in the nurse station S confirms the number of the patient room R from which the alarm signal is started, and uses the communication device such as an intercom to communicate with the subject of the patient room R. Get in touch, check the status of the subject and / or move to the room R and take the necessary action.

  Here, when the alarm signal is directly transmitted from the detector 5 to the alarm device 2 of the nurse station S, the detector 5 consumes required power because there is a distance between the two. For this reason, the detector 5 needs to be provided with a cord connected to external power such as an outlet. In such a case, the range in which the detector 5 can be disposed on the bed B or the like is limited. On the other hand, when the transmitter / receiver 6 for transmitting and receiving the alarm signal output from the detector 5 is provided, the power consumption of the detector 5 can be reduced as much as possible. Can respond. The detector 5 shown in FIG. 1 has a built-in battery as will be described later. Therefore, the detector 5 can be arranged at an arbitrary place.

  2A and 2B are schematic views showing how the detector 5 shown in FIG. 1 is used. FIG. 2A is a plan view and FIG. 2B is a side view. In FIG. 2, parts corresponding to those shown in FIG.

  As shown in FIGS. 2A and 2B, the detector 5 is disposed at a substantially central position on the foot side of the bed B. The detection area of the detector 5 extends in the left-right direction and the vertical direction. If the detection area in the left-right direction is D1 and the detection area in the vertical direction is D2, the angle α extending from the detector 5 in the detection area D1 in the left-right direction. Is determined according to the width and length of the bed B. Here, in many cases, the width dimension of the single bed installed in the hospital room is approximately 100 cm to approximately 120 cm, and the length dimension is approximately 200 cm. When the bed B has such a size, the angle α spreading from the detector 5 in the detection region D1 in the left-right direction may be set to about 25 °. Thereby, the detection area D1 can cover the central portion of the bed B, that is, the area where the subject H is highly likely lying on the entire area in the longitudinal direction of the bed B. The angle α is preferably set to about 20 ° or more and about 25 ° or less.

  On the other hand, as shown in FIG. 2 (b), the detector 5 is attached at an appropriate height from the surface of the bed B. The mounting height of the detector 5 is determined in accordance with the thickness dimension of the subject H so that the subject H does not enter the detection region D2 of the detector 5 when the subject H is lying on the bed B. Thus, a non-detection region N where the detector 5 does not detect the subject H on the bed B is formed. As will be described later, the detection area D2 in the vertical direction of the detector 5 is set above the horizontal position, and considering the height of the pelvis when the subject H faces sideways on the bed B, The height dimension of the detection region N is preferably set to about 50 cm to 60 cm.

  The detector 5 may be attached to the frame of the bed B, or may be attached to an appropriate support member or support. In the latter case, the gap between the support member and the bed B is made as narrow as possible so that no person or object other than the target person H on the bed B enters the detection areas D1 and D2 of the detector 5. deep.

  Further, the detection area D2 in the vertical direction of the detector 5 is set to be in a range from the horizontal position to an appropriate elevation angle β. The elevation angle β is determined according to the length dimension of the bed B. When the bed B is the single bed dimension described above, the elevation angle β may be set to about 20 ° or more and about 25 ° or less.

  In this way, the detector 5 is attached to a position at an appropriate height from the surface of the bed B, and the detection areas D1 and D2 of the detector 5 are set to the above-described ranges in the left and right directions and the vertical direction. Since the non-detection region N is provided from the surface to a predetermined height position, when the subject H is lying on the bed B, the subject H on the bed B is Since it is in the non-detection region N, the detector 5 does not detect it. Thereby, even if it is one detector 5, false detection can be reduced as much as possible.

  Moreover, since this monitoring apparatus 1 only installs one detector 5 with respect to one monitoring object, the installation work of the detector 5 can be performed easily. Further, the cost required for the detector 5 can be reduced as much as possible.

  On the other hand, when the subject H lying on the bed B raises the upper body, the upper body of the subject H enters the detection areas D1 and D2 of the detector 5, so that the detector 5 detects it and described above. An alarm signal is transmitted as follows. Thus, since the detector 5 detects the subject H at the timing when the subject H lying on the bed B wakes up, the subject H on the bed B can be quickly dealt with. The fall of the subject H on the bed B from the bed B can also be avoided.

  That is, in many cases for the subject H who is highly likely to fall from the bed B, as shown in FIGS. 2 (a) and 2 (b), on both sides thereof, fall prevention members B1, B1 such as fences are provided. , B1 to which B1 and B1 are detachably attached is applied. In such a case, in order for the subject person H to fall from the bed B, it is necessary to get over any of the fall prevention members B1, B1, B1, B1, but at this time, the subject person H raises the upper body, so the detector 5 Since this is detected and an alarm signal is transmitted, before the subject H falls from the bed B, the alarm device 2 of the nurse station S is operated, and the treatment by the nurse is performed.

  Here, the detector 5 incorporates a pyroelectric infrared detection element, so that when the subject H having an appropriate body temperature enters the detection areas D1 and D2, the detector 5 Although detection can be performed, even if an object that does not have an appropriate temperature, such as bedding or a curtain, enters the detection regions D1 and D2, the object is not detected. As described above, the detector 5 detects only when the subject H having an appropriate body temperature enters the detection areas D1 and D2 by the built-in infrared detection element. Even so, false detection can be reduced as much as possible.

FIG. 3 is a block diagram illustrating a configuration example of the detector 5 illustrated in FIGS. 1 and 2.
The detector 5 includes a pyroelectric infrared detection element 51, a first delay circuit 53 and a second delay circuit 54 that delay a detection signal output from the infrared detection element 51, and the infrared detection element 51 and the first delay circuit 54. Between the delay circuit 53 and the second delay circuit 54, a changeover switch (switch) 52 for switching between the delay circuits 53 and 54 is interposed. Here, the delay time of the detection signal of the first delay circuit 53 is relatively shorter than that of the second delay circuit 54, and the delay time of the detection signal of the first delay circuit 53 is relative to that of the first delay circuit 53. It ’s long. For example, the delay time of the first delay circuit 53 is set to 2 seconds, while the delay time of the second delay circuit 54 is set to 4 seconds.

  The output terminals of the first delay circuit 53 and the second delay circuit 54 are connected to one input terminal provided in the comparator 55, and the other input terminal provided in the comparator 55 is connected to the infrared detection element 51. A detection signal is input directly from the output terminal. When the detection signal is input to both the input terminals, the comparator 55 causes the alarm transmission circuit 56 to transmit the alarm signal. The infrared detecting element 51, the first delay circuit 53, the second delay circuit 54, the comparator 55, the alarm transmission circuit 56 and the like are supplied with power from the battery 60.

  As a result, the target person H within the detection areas D1 and D2 shown in FIGS. 2 and 3 is not less than the delay time set in the first delay circuit 53 or the second delay circuit 54, for example, 2 seconds or 4 seconds or more, If present, an alarm signal is emitted from the detector 5.

  Depending on the subject H, there is a case where the upper body is woken up from a lying state for a short time and then quickly relieves, but there is no particular problem with this operation, and no action is required by the nurse. For this reason, it is required to avoid transmission of an alarm signal from the detector 5. On the other hand, this requirement can be satisfied by configuring the detector 5 as described above.

  Here, when the operation of the subject H is relatively short, the first delay circuit 53 and the comparator 55 are connected by the changeover switch 52, and the operation of the subject H is slow. When a relatively long time is required, the second delay circuit 54 and the comparator 55 are connected by the changeover switch 52. Accordingly, the monitoring device can appropriately perform monitoring according to each of a plurality of subjects.

  In the present embodiment, the case where the first delay circuit 53 or the second delay circuit 54 and the comparator 55 are used has been described. However, the present invention is not limited to this, and the subject H is included in the detection areas D1 and D2. Needless to say, a configuration other than the first delay circuit 53 or the second delay circuit 54 and the comparator 55 may be applied as long as the alarm signal is transmitted when the signal exists for a predetermined time or longer.

  In the present embodiment, the case where the detector 5 is provided with the changeover switch 52, the first delay circuit 53, the second delay circuit 54, the comparator 55, and the alarm transmission circuit 56 has been described. However, the transmitter / receiver 6 may be provided with a changeover switch 52, a first delay circuit 53, a second delay circuit 54, a comparator 55, and an alarm transmission circuit 56. Thereby, the power consumption of the detector 5 can be suppressed as much as possible, and the replacement timing of the battery 60 can be delayed.

(Second form for carrying out the invention)
FIG. 4 is an explanatory diagram for explaining the configuration of the monitoring apparatus according to the second embodiment, and an imaging signal obtained by imaging the subject can be transferred to the portable terminal in parallel with the transmission of the alarm signal. In the figure, parts corresponding to those shown in FIG.

  As shown in FIG. 4, each hospital room R, R,... Is provided with an imager 7, 7,. .., And image signals obtained by the image pickup devices 7, 7,... Are supplied to the transmitter / receivers 6, 6,. In a hospital, since the monitoring target period is often set to night, an infrared camera may be used as the image pickup device 7, 7,.

  5A and 5B are schematic views showing how the image pickup device 7 shown in FIG. 4 is used. FIG. 5A is a plan view and FIG. 5B is a side view. In FIG. 5, parts corresponding to those in FIG.

  As shown in FIG. 5A, the imager 7 is located at a distance from the foot-side end of the bed B, and as shown in FIG. 5B, the bed B It is preferable to arrange it at a height position from the surface. The arrangement of the image pickup device 7 may be a position slightly away from the end on the head side of the bed B, or may be the wall of the patient room R shown in FIG. 4 and is supported by a support member such as an infusion stand. You may make it make it.

  The imaging range of the imaging device 7 is set on substantially the entire surface of the bed B and around the bed B as shown in FIGS. As a result, the imager 7 can capture images in any case, such as when the subject H is lying on the bed B, when the upper body is raised on the bed B, or when the subject H falls from the bed B. It has become.

  In addition, the arrangement position of the imaging device 7 may be, for example, the ceiling of the hospital room R so that the entire surface of the bed B and the periphery of the bed B can be imaged.

  On the other hand, as described above, each transmitter / receiver 6, 6,... Is also provided with an alarm signal from the corresponding detector 5, 5,. When an alarm signal is given from 5, 5,..., The alarm signal is transmitted, and an imaging signal given from the corresponding imager 7, 7,. For example, minutes are transmitted for a predetermined time. In addition, you may comprise so that the said image signal can be recorded in parallel with transmission of an imaging signal.

  Note that the imaging signal may be constantly output from the imaging device 7 to the transceiver 6 in this way, and the transceiver 6 may transmit only for a predetermined time after the alarm signal is given from the detector 5. When the detector 6 is given an alarm signal from the detector 5, it gives an output command from the transceiver 6 to the corresponding imager 7, causes the imager 7 to execute an image pickup operation for a predetermined time, and gives it from the imager 7. The captured imaging signal may be transmitted.

  In the nurse station S described above, in place of the alarm device 2 shown in FIG. 1 or together with the alarm device 2 (not shown), a communication device 3 such as a router, and a terminal device such as a personal computer or a tablet computer. 4, the alarm signal and the imaging signal transmitted from the transceivers 6, 6,... Are received by the communication device 3 and given to the terminal device 4. The terminal device 4 includes a monitor provided with a display unit for displaying an image and a speaker for outputting sound. When an alarm signal and an imaging signal are provided, the alarm information and the alarm signal of the patient room R from which the alarm signal is transmitted are provided. The room information such as the number, the subject information such as the subject's name and disease name, and the image based on the imaging signal are displayed on the monitor, and an alarm sound is output. The subject information described above may be stored in the terminal device 4, or may be read from a database of an information system (HIS (Hospital Information System)) provided in advance in the hospital.

  On the other hand, mobile terminals 8, 8, 8,... Such as smartphones are distributed to one or a plurality of nurses who visit each hospital room R, R,. In addition, an alarm signal and an imaging signal are transmitted from the communication device 3 described above. When the alarm signal and the imaging signal are transmitted from the communication device 3, the portable terminals 8, 8, 8,... Notify the alarm by sound and / or vibration and display an image based on the patient room information and the imaging signal. To do.

  When a nurse in the hospital is on standby at the nurse station S and an alarm signal is transmitted from any of the detectors 5, the terminal 4 provided in the nurse station S or a portable terminal When possessing the device 8, the mobile terminal device 8 and the terminal device 4 know the warning and confirm the image to grasp the situation of the subject person. When the nurse determines that treatment is necessary, the nurse rushes to the corresponding hospital room R. On the other hand, if the nurse cannot determine whether or not a treatment is necessary, he / she speaks to the subject by voice using a pre-installed intercom, etc. If it judges, it will wait as it is.

  In addition, a nurse who is traveling knows the alarm by using the portable terminal device 8 that he / she has, and confirms the situation of the subject by checking the image. When the nurse determines that treatment is necessary, the nurse rushes to the corresponding hospital room. On the other hand, if the nurse cannot determine whether or not treatment is necessary, the image displayed on the portable terminal 8 is observed for a while. If judged, the patrol is continued as it is.

  Note that each time the above-described imaging signal is transmitted from the transmitter / receiver 6, 6,..., It may be associated with the corresponding target person information and stored in the database of the hospital information system.

DESCRIPTION OF SYMBOLS 1 Monitoring apparatus 2 Alarm device 3 Communication device 4 Terminal device 5 Detector 6 Transmitter / receiver 7 Image pick-up device 51 Infrared detection element 53 1st delay circuit 54 2nd delay circuit D1 detection area D2 detection area H Target person B Bed (bed)

(1) A monitoring device according to the present invention is a detector that is arranged in the vicinity of a bed on which the subject lies, or that detects the presence or absence of the subject lying on the bed with an infrared detection element and outputs a signal. And a monitoring device that receives a signal from the detector and notifies a warning, wherein the detector is a non-detection region from the surface of the bed to a predetermined height position, Further, when the detection surface is provided for a predetermined time or more from the infrared detection element, the detection region is a region that faces the surface of the bed and is higher than the non-detection region. And a signal output means for outputting an alarm signal.

By the way, in the above-described detector, an area from the surface of the bed to a predetermined height position is set as a non-detection area, and the area facing the surface of the bed and higher than the non-detection area is set as a detection area. On the other hand, the detector includes signal output means for outputting an alarm signal, and the signal output means outputs an alarm signal when a detection signal is given from the infrared detection element for a predetermined time or more. .

(3) In the monitoring device according to the present invention, the signal output means includes a delay circuit that delays the detection signal from the infrared detection element, a comparator provided with a pair of input terminals, and an alarm that transmits an alarm signal. A signal transmission circuit, wherein one input terminal of the comparator is connected to an output terminal of the delay circuit, and the other input terminal of the comparator is connected to an output terminal of the infrared detection element. The comparator is configured to transmit an alarm signal from an alarm signal transmission circuit when a signal is input to both input terminals.

In the monitoring apparatus of the present invention, the signal output means described above includes a delay circuit that delays the detection signal from the infrared detection element, a comparator provided with a pair of input terminals, and an alarm that transmits an alarm signal. And a signal transmission circuit. One input terminal of the comparator is connected to the output terminal of the delay circuit, and the other input terminal of the comparator is connected to the output terminal of the infrared detection element. When the signal is input to both input terminals, that is, when the detection signal from the infrared detection element is continuously input to the comparator for the delay time set in the delay circuit, the alarm signal An alarm signal is transmitted from the transmission circuit. Thus, the signal output means can be formed with a relatively simple configuration, and the component cost can be reduced as much as possible.

Claims (9)

A bed placed on or near the bed on which the subject is lying, a detector for detecting the presence or absence of the subject lying on the bed with an infrared detecting element and outputting a signal, and receiving a signal from the detector And a monitoring device provided with a notification device that notifies a warning,
The detector has a region from the surface of the bed to a predetermined height position as a non-detection region, and is opposed to the surface of the bedding, and has a region higher than the non-detection region as a detection region,
The detector includes a signal output means for outputting an alarm signal when a detection signal is given from the infrared detection element for a predetermined time or more. The detection area of the detector is set between a horizontal position and an appropriate elevation angle position,
The monitoring device according to claim 1, wherein the detector is arranged at a required height from the surface of the bed. The signal output means includes a delay circuit that delays a detection signal from the infrared detection element, a comparator provided with a pair of input terminals, and an alarm signal generation circuit that generates an alarm signal,
One input terminal of the comparator and the output terminal of the delay circuit are connected, the other input terminal of the comparator and the output terminal of the infrared detection element are connected,
The monitoring device according to claim 1 or 2, wherein the comparator is configured to transmit an alarm signal from an alarm signal transmission circuit when a signal is input to both input terminals. At least two delay circuits are provided, the delay time of one delay circuit is longer than the delay time of the other delay circuit,
The monitoring device according to claim 1, wherein the detector is provided with a switch for switching both delay circuits.   The monitoring device according to any one of claims 1 to 4, further comprising a transmitter / receiver that receives an alarm signal output from the detector and transmits the alarm signal to the alarm.   An imager that images the image of the subject on the bed on which the subject is lying or is located near the bed, and when the alarm signal is output from the detector, the image is captured from the imager to the alarm device. The monitoring apparatus according to claim 1, wherein the monitoring apparatus is configured to transmit a signal. In place of the alarm or in addition to the alarm,
One or more portable terminals;
A communication device that receives the alarm signal and transmits the alarm signal to the mobile terminal;
The monitoring device according to any one of claims 1 to 5, wherein the portable terminal is configured to notify an alarm when an alarm signal is transmitted from a communication device. In place of the alarm or in addition to the alarm,
One or more portable terminals;
A communication device that receives the alarm signal and the imaging signal and transmits the signal to the portable terminal;
The monitoring apparatus according to claim 6, wherein the portable terminal issues an alarm when an alarm signal and an imaging signal are transmitted from a communication device, and displays an image related to the imaging signal. The monitoring device according to claim 1, wherein the detector includes a pyroelectric infrared detection element.

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