JP2015126803A - Bed-leaving detection mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bed-leaving detection mat which does not output caution information when a monitor performs operation such as nursing care, and can output the caution information reliably when a monitored person leaves a bed or falls from the bed.SOLUTION: A bed-leaving detection mat comprises: a first pressure sensitive area disposed on a floor surface that is stepped by a monitored person when leaving a bed; a second pressure sensitive area provided adjacent to the first pressure sensitive area; an output part for outputting caution information; and a control part for controlling the output part. At least under a monitoring state, when a predetermined load or more is applied to the second pressure sensitive area, the control part shifts from the monitoring state to a non-monitoring state. The second pressure sensitive area is on a traffic line when the monitoring person approaches the monitored person lying on the bed, and is provided adjacent to the first pressure sensitive area on the foot side in the longitudinal direction of the bed.

Description

  The present invention relates to a bed leaving detection mat capable of notifying a monitoring person that a monitoring subject lying on a bed has left the bed.

  Conventionally, a pressure sensor mat has been placed on the floor near the bed on which a person to be monitored, such as a patient or care recipient, lies mainly in a medical institution or a care facility, and a predetermined load is applied to the pressure sensor. If the person to be monitored has left the bed, or the person to be monitored has fallen from the bed, the nurse or the buzzer may There are known bed detection mats to be notified (see Patent Document 1 and Patent Document 2).

  However, when the above-mentioned bed detection mat is used, a nurse call or buzzer sounds even if there is no abnormality in the monitoring target person, such as when the monitoring person steps on the mat for nursing work or the like. There was a problem. In view of this, the wireless IC tag is carried by the supervisor, and the detection means for detecting the wireless IC tag is arranged near the bed. While the detection means detects the wireless IC tag, a load is applied to the mat. However, a system has been proposed in which an abnormality is not notified by a nurse call or a buzzer (see Patent Document 3). According to this configuration, when the supervisor steps on the mat in nursing or care work, there is no nurse call or buzzer.

Japanese Patent Laid-Open No. 10-94525 JP-A-11-213266 JP 2010-148700 A

  However, since there are many people who may step on the mat placed near the bed, such as many medical workers and caregivers, as well as families and visitors, distribute wireless IC tags to all of them. It is difficult. In addition, even if the supervisor does not look at the person to be monitored, such as when the wireless IC tag is left in the vicinity of the bed, if the wireless IC tag is in the vicinity of the bed, the person to be monitored has left or falls. However, there is a problem that an abnormality cannot be notified by a nurse call or a buzzer.

  The present invention does not output the caution information when the monitor performs a nursing operation or the like, and can reliably output the caution information when the monitored person leaves the bed or falls. An object of the present invention is to provide a bed detection mat that can be used.

  The bed leaving detection mat according to claim 1 is a sheet-like first pressure sensing region disposed on a floor surface at a position where a monitoring target person lying on a bed steps when leaving the bed, and the first feeling. A bed-like detection mat comprising: a sheet-like second pressure-sensitive area provided adjacent to the pressure area; an output unit that outputs caution information about getting out of the person being monitored; and a control unit that controls the output unit. The control unit, when a predetermined load or more is applied to the first pressure sensitive region, the monitoring state that causes the output unit to output the caution information, and the predetermined pressure or more to the first pressure sensitive region Can be shifted to a non-monitoring state in which the attention information is not output, and at least when the control unit is in the monitoring state, a load of a predetermined level or more is applied to the second pressure sensitive region. If the control unit The second pressure-sensitive region is on the flow line when the monitor approaches the monitoring target person lying on the bed, and is on the foot side in the length direction of the bed. It is provided adjacent to the first pressure-sensitive region.

  The bed leaving detection mat according to claim 2 is characterized in that the second pressure-sensitive region is provided on the head side in the length direction of the bed with respect to the end of the bed on the foot side.

  The bed leaving detection mat according to claim 3, wherein the second pressure-sensitive region is provided adjacent to a position of the first pressure-sensitive region farthest from the bed in the width direction of the bed. Yes.

  The bed leaving detection mat according to claim 4 is characterized in that the first pressure sensitive area and the second pressure sensitive area are reversible.

  The bed leaving detection mat according to claim 5, wherein when the control unit is in the non-monitoring state, a load exceeding a predetermined value is not continuously applied to the first pressure sensitive region for a first predetermined time or more. In addition, the non-monitoring state is shifted to the monitoring state.

  The bed leaving detection mat according to claim 6 is characterized in that a display unit capable of displaying the passage of the first predetermined time is provided.

  The bed leaving detection mat according to claim 7, wherein the control unit changes from the non-monitoring state to the monitoring state when a predetermined load or more is applied to the second pressure-sensitive region in the non-monitoring state. It is characterized by transition.

  The bed leaving detection mat according to claim 8, wherein the control unit shifts from the non-monitoring state to the monitoring state when a second predetermined time has elapsed after shifting from the monitoring state to the non-monitoring state. It is characterized by.

  According to the bed leaving detection mat according to claim 1, the control unit causes the output unit to output caution information when a predetermined load or more is applied to the first pressure sensitive region, and the first pressure sensitive region. When a load exceeding the specified level is applied, it is possible to shift to a non-monitoring state in which warning information is not output, and when the monitored person leaves the bed or falls from the bed in the monitoring state. Since a load is applied to the first pressure-sensitive region, attention information can be output to the output unit. In addition, since the caution information is not output even when a predetermined load or more is applied to the first pressure-sensitive area in the non-monitoring state, the supervisor can use the first pressure-sensitive area for nursing or care work. No attention information is output even if you step on. When the control unit is in the monitoring state and a load exceeding a predetermined value is applied to the second pressure sensitive region, the control unit shifts from the monitoring state to the non-monitoring state. Before stepping on the first pressure-sensitive area for the work, stepping on the second pressure-sensitive area and shifting from the monitoring state to the non-monitoring state can prevent unnecessary caution information from being output. .

  The second pressure-sensitive region is provided on the flow line when the monitor approaches the monitoring target person lying on the bed, and is provided adjacent to the first pressure-sensitive region on the foot side in the length direction of the bed. Yes. In medical institutions and nursing care facilities, the bed is arranged so that the supervisor who performs nursing and nursing care approaches from the direction of the foot of the person to be laid down. Since the second pressure sensitive area can be stepped on before the one pressure sensitive area, and the second pressure sensitive area is also a sheet-like one arranged on the floor, the supervisor is necessary for nursing or nursing care. Even when an object is held with both hands, the second pressure-sensitive area can be easily stepped on.

  In addition, the first pressure-sensitive area is disposed at a position where the person to be monitored steps when getting out of the bed, and the second pressure-sensitive area is adjacent to the first pressure-sensitive area in the length direction of the bed. Because the load is applied to the first pressure-sensitive area before the second pressure-sensitive area when the person to be monitored leaves the bed or falls, the load is applied to the monitored object. Can be monitored reliably.

  According to the bed leaving detection mat described in claim 2, the second pressure-sensitive region is provided on the head side in the length direction of the bed from the end of the bed on the foot side. In a medical institution or a care facility, particularly in the case of a shared room, a passage is provided further on the foot side in the length direction of the bed than on the foot side end of the bed. Therefore, as described above, the second pressure-sensitive region is provided on the head side in the length direction of the bed with respect to the foot-side end of the bed, so that a person who passes through the passage is in the second pressure-sensitive region. Can be prevented from unintentionally entering a non-monitoring state.

  According to the bed leaving detection mat according to the third aspect, the second pressure sensitive area is provided adjacent to the position of the first pressure sensitive area farthest from the bed in the width direction of the bed. That is, since the second pressure-sensitive area is arranged at the position farthest from the bed, the second pressure-sensitive area precedes the first pressure-sensitive area when the monitoring subject leaves the bed or falls. It is possible to more reliably prevent the user from stepping on and to monitor the person to be monitored with certainty.

  According to the bed leaving detection mat according to claim 4, since the first pressure sensing area and the second pressure sensing area are reversible, the bed leaving detection mat is placed on either the right or left floor surface of the monitoring subject lying on the bed. Even in the case of arrangement, the second pressure-sensitive region can be arranged at a position farthest from the bed, and the versatility is excellent.

  According to the bed leaving detection mat according to claim 5, after the control unit is set to the non-monitoring state for nursing or the like, the supervisor is stepping on the first pressure-sensitive area during the nursing operation or the like. When the monitor moves away from the first pressure-sensing area beside the bed, the first pressure-sensing area is continuously applied for the first predetermined time or longer, and the load exceeding the predetermined value is not applied. Will shift to the monitoring state. Therefore, there is no transition to the monitoring state without permission during nursing or nursing work, so no caution information is output. Also, after the nursing or nursing work is finished, the monitor leaves the bed. In such a case, the monitoring person is not required to perform any operation, and the monitoring state is surely shifted, so that the monitoring target person can be reliably monitored.

  According to the bed leaving detection mat according to claim 6, since the display unit capable of displaying the passage of the first predetermined time is provided, the passage of the first predetermined time can be visually recognized, and from the non-monitoring state It is possible to know the timing of transition to the monitoring state. Therefore, when the monitor leaves the bed in the non-monitoring state, it can be known whether the monitoring state immediately shifts to the monitoring state or whether there is some time until the monitoring state shifts.

  According to the bed leaving detection mat according to claim 7, when a load greater than or equal to a predetermined value is applied to the second pressure-sensitive region in the non-monitoring state, the monitor moves from the non-monitoring state to the monitoring state. By stepping on the second pressure-sensitive region when leaving the bed, it is possible to shift from the non-monitoring state to the monitoring state. Therefore, it is possible to shift to the monitoring state without waiting for the elapse of a predetermined time.

  According to the bed leaving detection mat according to claim 8, the control unit shifts from the non-monitoring state to the monitoring state when the second predetermined time has elapsed after shifting from the monitoring state to the non-monitoring state. It is possible to reliably shift to the monitoring state, and to reliably monitor the monitoring target person.

The block diagram which shows the electric constitution of a bed leaving detection mat. The perspective view which shows the external appearance of a bed leaving detection mat. The abbreviated perspective view showing the arrangement of the bed leaving detection mat and the bed. The top view which shows arrangement | positioning of a bed leaving detection mat and a bed. The figure which arrange | positioned the bed detection mat | matte and the bed in shared rooms, such as a hospital room. The flowchart which shows the routine of the output process which outputs attention information. The flowchart which shows the routine of the state transition process of the control part of the bed leaving detection mat which concerns on 1st Embodiment. It is the perspective view which shows the modification of a bed leaving detection mat | matte, Comprising: (A) is the figure which looked at the surface, (B) was the figure which looked at the back surface. The figure which has arrange | positioned the bed detection mat | matte of a modification in a shared room. The flowchart which shows the routine of the state transfer process of the control part of the bed leaving detection mat which concerns on 2nd Embodiment.

[First Embodiment]
Hereinafter, a first embodiment of the bed leaving detection mat 1 of the present invention will be described with reference to FIGS. 1 to 7. The bed leaving detection mat 1 is stepped on when the monitoring person lying on the bed 2 leaves the bed 2 in order to notify the monitoring person that the monitoring person has left the bed 2 or has fallen from the bed 2. It is a mat arranged on the floor of the position. Here, the “monitoring person” is, for example, a person who may be in danger when getting out of the bed 2, such as dementia or an infant, or is difficult to stand up by himself when falling from the bed 2. A person who needs nursing, nursing, or nurturing, such as a person. Further, the “monitoring person” refers to a person who performs medical practice, nursing, nursing care, or nurturing with respect to the monitoring target person lying on the bed 2. In the present embodiment, a bed detection mat 1 installed on the floor surface close to the bed 2 of a monitoring subject who is admitted to a medical institution will be described as an example. In the following, nursing, care, or nurturing performed by the supervisor on the subject of monitoring is described as nursing or the like.

  As shown in FIGS. 1 and 2, the bed leaving detection mat 1 is formed in a rectangular sheet shape, and is arranged on the floor surface at a position where the person to be monitored steps on when leaving the bed 2. A rectangular sheet-shaped second pressure-sensitive region 4 provided adjacent to the region 3, the first pressure-sensitive region 3, and an elongated display unit disposed at the boundary between the first pressure-sensitive region 3 and the second pressure-sensitive region 4 5, an output unit 6 that outputs caution information about getting out of the monitoring subject, a control unit 7 that controls the output unit 6, and a storage unit 8 that stores a program of processing performed by the control unit 7. .

The first pressure-sensitive region 3 is a rectangular sheet having a thickness of 4 mm, a width of 610 mm, and a length of 910 mm, and is a pressure sensor that detects a load of ² kg / 15 cm ² . Therefore, in the present embodiment, the “load of a predetermined value or more” in the present invention corresponds to a load of ² kg / 15 cm ² or more. The size and the detection load of the first pressure-sensitive region 3 are not limited to those described above, and are a size that can be laid in a region including the position of the floor surface to be stepped on when the monitoring subject leaves the bed 2. And a pressure sensor that can detect a load applied to the floor surface when the monitoring subject leaves the bed 2. The storage unit 8 stores a predetermined threshold separately from the minimum limit load value that can be detected by the first pressure-sensitive region 3, and the control unit 7 outputs the output unit 6 only when a load exceeding the predetermined threshold is applied. It may be configured to output the attention information.

The second pressure-sensitive region 4 is a pressure sensor similar to the first pressure-sensitive region 3, and has a dimension of 4 mm in thickness and a side adjacent to the first pressure-sensitive region 3 of 610 mm. The side parallel to the longitudinal direction is 200 mm. The second pressure sensitive region 4 also detects a load of ² kg / 15 cm ² . The display unit 5 provided at the boundary between the first pressure-sensitive region 3 and the second pressure-sensitive region 4 is formed by arranging a plurality of LED elements in a line. The display unit 5 displays the passage of a first predetermined time to be described later by increasing or decreasing the number of LED elements that emit light. In addition, the aspect of the display part 5 is not limited to the line of the LED element which light-emits, You may display a 1st predetermined time by the change of a number or a color. Further, the display unit 5 is provided at the boundary between the first pressure-sensitive region 3 and the second pressure-sensitive region 4 so that the boundary between the first pressure-sensitive region 3 and the second pressure-sensitive region 4 can be clearly seen. In addition, there is an advantage that the monitor does not make a mistake in stepping on the first pressure sensitive region 3 and the second pressure sensitive region 4, but the position of the display unit 5 is not limited to this, and the display unit 5 is not limited to this. It may be arranged at the position.

  The display unit 5 is configured to notify the outside whether the control unit 7 is in a monitoring state or a non-monitoring state. For example, the LED element can be controlled to emit light in red or green, emits red light in the non-monitoring state, and emits green light in the monitoring state, thereby notifying the state of the control unit 7. .

  The first pressure sensitive area 3 and the second pressure sensitive area 4 are fixed to each other as a single mat.

  In this embodiment, the output unit 6 is an output interface connected to the nurse call terminal 11. A cable 10 extends from the output unit 6 and is connected to a nurse call terminal 11 provided on the wall 12. When the control unit 7 sends a signal indicating that attention information is output to the output unit 6, a nurse call master unit (not shown) provided in the nurse station emits a light and sound through the output unit 6. Make the person aware of the attention information. For example, in the case of nursing at home, the output unit 6 may be one that makes the monitor recognize the attention information by emitting light or sound, or may be a mobile phone or the like. You may make a supervisor recognize warning information by transmitting mail etc. to the terminal which a supervisor carries.

  The control unit 7 is a microprocessor that determines whether to output caution information to the output unit 6 based on a load signal detected by the first pressure-sensitive region 3 and the second pressure-sensitive region 4. The control unit 7 has a monitoring state in which attention information is output to the output unit 6 when a predetermined weight or more is applied to the first pressure-sensitive region 3, and a case where a predetermined or greater weight is applied to the first pressure-sensitive region 3. Furthermore, it is possible to shift to a non-monitoring state in which attention information is not output. The storage unit 8 is a memory that stores programs of various processes performed by the control unit 7 and the state of the control unit 7.

  Next, the arrangement of the bed 2 and the bed leaving detection mat 1 will be described with reference to FIGS. As shown in FIGS. 4 and 5, generally in a room of a medical institution or a nursing facility, the bed 2 has a head side of a person to be monitored lying close to the wall 12 in the length direction X, and a person on the foot side is a person who is a monitor. The passage 14 can be passed. One of the width direction Y of the bed 2, that is, the left and right direction of the monitoring subject lying on the bed 2, is partitioned by the wall 12 and the curtain 13. Further, among the left and right directions of the monitoring target person lying on the bed 2, on the other side, a storage shelf on which the monitoring target person's luggage, daily necessities, treatment tools and the like can be placed, or the monitoring person cares for the monitoring target person. There is a space, and this space is a dedicated space 9 where only a person who has a use for the monitoring target can enter. When the monitor approaches the person to be monitored, the person passes through the passage 14 and enters the dedicated space 9 to perform nursing care of the person to be monitored.

  As shown in FIGS. 3 and 4, the bed leaving detection mat 1 is placed on the floor surface of the dedicated space 9 close to the bed 2. The bed leaving detection mat 1 is placed on the floor surface beside the bed 2 such that the center in the length direction X of the bed 2 is the center in the longitudinal direction of the first pressure sensitive area 3. The second pressure-sensitive region 4 is arranged on the foot side in the length direction X of the bed 2, that is, on the passage 14 side of the first pressure-sensitive region 3. The end of the second pressure-sensitive region 4 closest to the passage 14 is disposed closer to the head side in the length direction X of the bed 2 than the end of the bed 2 on the foot side. That is, the second pressure sensitive area 4 does not protrude to the passage 14 side and is placed on the floor surface of the dedicated space 9.

  In the present embodiment, one side in the width direction Y of the bed 2 is partitioned by the wall 12, and the bed leaving detection mat 1 is placed on the floor surface of the other dedicated space 9 in the width direction Y of the bed 2. However, in the case of a room mainly in a private room where both sides in the width direction Y of the bed 2 are not partitioned by the wall 12 or the curtain 13, the dedicated spaces 9 are respectively provided on both sides in the width direction Y of the bed 2. The floor detection mat 1 may be placed on the floor surfaces of the dedicated spaces 9 on both sides.

  Next, attention information output processing mainly performed by the control unit 7 will be described with reference to FIG. In the attention information output process, first, it is determined whether or not the state of the control unit 7 is a monitoring state (S100). For example, an area for storing the state of the control unit 7 is provided in the storage unit 8, and the flag is set to ON when in the monitoring state, and the flag is set to OFF when in the non-monitoring state. With reference to the area of the storage unit 8, it is determined whether or not it is ON. If it is determined that the state of the control unit 7 is not the monitoring state (S100: NO), since the state of the control unit 7 is the non-monitoring state, this process is returned without outputting the caution information.

  On the other hand, if it is determined that the state of the control unit 7 is a monitoring state (S100: YES), it is then determined whether or not a predetermined load or more is applied to the first pressure-sensitive region 3 (S101). That is, it is determined whether or not a signal indicating that a predetermined load or more has been detected from the first pressure-sensitive region 3 has been received. If it is determined that a predetermined load or more is not applied to the first pressure-sensitive region 3 (S101: NO), this processing is returned without outputting the caution information. On the other hand, if it is determined that a predetermined load or more is applied to the first pressure-sensitive region 3 (S101: YES), the control unit 7 sends a signal indicating that attention information should be output via the output unit 6 to a nurse call terminal (not shown). (S102), and the process returns. When a signal indicating that attention information should be output is output to the nurse call terminal 11, the nurse call master unit of the nurse station emits light and sound to notify the monitoring person of the attention information. Therefore, the monitoring person can know that there is a possibility that the monitoring target person has left the bed 2 or has fallen.

  As described above, when the person to be monitored leaves the bed 2 or falls, a load of a predetermined level or more is applied to the first pressure-sensitive area 3 of the bed detection mat 1, so the state of the control unit 7 is monitored. In the case of the state, the warning information can be surely notified to the monitor. Further, when the control unit 7 is in the non-monitoring state, the output process is returned without determining whether or not a predetermined load or more is applied to the first pressure-sensitive region 3, so that the supervisor can By setting the non-monitoring state before stepping on the first pressure-sensitive region 3 with, etc., unnecessary caution information can be prevented from being output.

  Next, a state transition process for mainly shifting the state of the control unit 7 performed by the control unit 7 between the monitoring state and the non-monitoring state will be described with reference to FIG. In this state transition process, first, it is determined whether or not the state of the control unit 7 is a monitoring state (S201). Specifically, as described above, a flag that is ON in the monitoring state and OFF in the non-monitoring state is provided in a predetermined area of the storage unit 8, and the control unit 7 refers to the storage unit 8 area. Then, it is determined whether or not the flag is ON.

  If it is determined that the state of the control unit 7 is a monitoring state (S201: YES), it is then determined whether or not the second pressure-sensitive region 4 has detected a load greater than or equal to a predetermined amount (S202). That is, it is determined whether or not the control unit 7 has received a signal from the second pressure sensitive region 4 that a load greater than or equal to a predetermined value has been detected. If it is determined that a predetermined load or more is detected from the second pressure sensitive area 4 (S202: YES), the supervisor enters the dedicated space 9 through the passage 14 for nursing or the like, and enters the second pressure sensitive area. 4 is determined, the state of the control unit 7 is shifted from the monitoring state to the non-monitoring state (S203), and the process returns. Specifically, the flag in the predetermined area of the storage unit 8 is changed from ON indicating the monitoring state to OFF indicating the non-monitoring state, and the process returns. As a result, even if the supervisor subsequently steps on the first pressure-sensitive area 3 for nursing or the like, the monitor is in a non-monitoring state, so that unnecessary attention information can be prevented from being output.

  On the other hand, returning to step S202, when the second pressure-sensitive region 4 has not detected a load greater than or equal to the predetermined value (S202: NO), the monitoring state is maintained as it is, and the process is returned.

  If it is determined in step S201 that the control unit 7 is not in the monitoring state (S201: NO), it is next determined whether or not the second pressure-sensitive region 4 has detected a predetermined load or more (S204). If it is determined that a load greater than or equal to a predetermined value has been detected (S204: YES), it is determined that the supervisor has finished work such as nursing and exits from the dedicated space 9 to the passage 14, and shifts to a monitoring state (S205). Return processing.

  On the other hand, if it is determined in step S204 that a predetermined load or more is not detected (S204: NO), then a predetermined load or more is applied to the first pressure-sensitive region 3 continuously for a first predetermined time or more. It is determined whether it is not (S206). Here, the first predetermined time is, for example, 1 minute. If it is determined that a predetermined load or more is not continuously applied to the first pressure-sensitive region 3 for a first predetermined time or longer (S206: YES), the process shifts to a monitoring state (S207), and the process returns. That is, when a predetermined load or more is not continuously applied for one minute, the supervisor has not stepped on the first pressure-sensitive area 3 for one minute or longer. In this case, the state shifts from the non-monitoring state to the monitoring state. On the other hand, if it is determined that the first predetermined time has not elapsed since a load greater than or equal to the predetermined pressure is applied to the first pressure-sensitive area 3 (206: NO), the work such as nursing of the supervisor has not been completed. Therefore, the non-monitoring state is maintained and the process returns to step S204.

  As described above, when the predetermined pressure or more is not continuously applied to the first pressure sensitive region 3 for a predetermined time or longer, the state of the control unit 7 is shifted from the non-monitoring state to the monitoring state. Even if the finished monitor leaves the bed 2 and forgets to step on the second pressure-sensitive area 4, it automatically shifts to the monitoring state after the first predetermined time has elapsed, and the monitored person is surely left or falls. Can be monitored.

  The display unit 5 is configured by, for example, 20 LED elements arranged in a line, and when the first predetermined time is 1 minute, a load greater than or equal to a predetermined value is applied to the first pressure-sensitive region 3. When the LED element is controlled to emit light every 3 seconds after it stops being applied, and when all the LED elements emit light when shifting from the non-monitoring state to the monitoring state, the monitoring state It is possible to visually recognize the passage of time until the transition to, and to know the timing of transition from the non-monitoring state to the monitoring state. Therefore, when the monitor leaves the bed 2 in the non-monitoring state, it can be known whether the monitoring state immediately shifts to the monitoring state or whether there is some time until the monitoring state shifts.

  As described above, the bed leaving detection mat 1 of the present embodiment has the control unit 7 in the non-monitoring state when the monitor is on the side of the bed 2 on which the monitoring target person lies for nursing or the like. When the monitor leaves the bed 2, the control unit 7 is surely in a monitoring state and can monitor the monitoring subject's getting out of bed or falling. The second pressure-sensitive region 4 is on the flow line 15 when the monitor approaches the monitoring target person lying on the bed 2, and on the foot side in the length direction X of the bed 2. When the observer approaches the bed 2, the second pressure sensitive area 4 can be stepped on before the first pressure sensitive area 3, and the second pressure sensitive area is provided. Since the region 4 is also a sheet-like material arranged on the floor surface, the second pressure-sensitive region 4 can be easily stepped on even when the observer holds an object necessary for nursing or care with both hands. it can.

  Furthermore, since the second pressure-sensitive region 4 is provided so as not to protrude into the passage 14, for example, in the case of a shared room, a person who passes through the passage 14 by nursing such as another patient can There is no fear of stepping on the region 4, and it is possible to prevent unintentional monitoring.

  In addition, in the bed leaving detection mat 1 of the present embodiment, the second pressure-sensitive region 4 is provided adjacent to the first pressure-sensitive region 3 and has the same length as the width of the first pressure-sensitive region 3. The configuration of the bed leaving detection mat 1 of the present invention is not limited to this. Next, an example in which the second pressure sensitive area 4 is provided in a part of the width direction of the first pressure sensitive area 3 will be described as a modified example of the bed leaving detection mat 1 of the first embodiment. As shown in FIGS. 8A and 9, the bed leaving detection mat 1 is provided with a second pressure sensitive region 4 adjacent to a position of the first pressure sensitive region 3 that is farthest from the bed 2. Therefore, when the monitoring subject leaves the bed 2 or falls, the second pressure-sensitive region 4 is arranged at the farthest position, so the second pressure-sensitive region is ahead of the first pressure-sensitive region 3. 4 can be more reliably prevented and the person to be monitored can be reliably monitored.

  This bed leaving detection mat 1 is preferably reversible. That is, the first pressure-sensitive region 3 and the second pressure-sensitive region 4 are not less than a predetermined value regardless of whether the front side shown in FIG. 8A or the back side shown in FIG. It is preferable that the load can be detected. With this configuration, as shown in the upper and lower beds 2 in FIG. 9, the second pressure-sensitive region 4 is arranged in the bed 2 even when the bed leaving detection mat 1 is arranged on either the right or left floor surface of the bed 2. It can be placed at the position farthest from the surface, and is highly versatile.

[Second Embodiment]
Next, the bed leaving detection mat 1 according to the second embodiment will be described. The bed detection mat 1 according to the second embodiment has the same dimensions and other physical shapes as those of the bed detection mat 1 according to the first embodiment, and a description thereof will be omitted. The bed detection mat 1 according to the second embodiment is different from the bed detection mat 1 according to the first embodiment in the state transition process for shifting the state of the control unit 7 between the monitoring state and the non-monitoring state. . Of the processes in FIG. 7 of the bed detection mat 1 according to the first embodiment, the processes in steps S201 to S205 are the same as those performed in the bed detection mat 1 according to the second embodiment. The same reference numerals are given and the description thereof is omitted.

  As shown in FIG. 10, in the state transition process of the bed leaving detection mat 1 in the second embodiment, if it is determined in step S204 that a load exceeding a predetermined value has not been detected (S204: NO), then non-monitoring is performed. It is determined whether or not a second predetermined time has elapsed since the transition to the state (S306). Here, the second predetermined time is, for example, 5 minutes. If it is determined that the second predetermined time or more has elapsed since the control unit 7 shifted to the non-monitoring state (S306: YES), the monitoring unit shifts to the monitoring state (S307), and the process returns. That is, when 5 minutes or more have passed since the transition to the non-monitoring state, it is determined that the supervisor has finished work such as nursing, and the transition is made from the non-monitoring state to the monitoring state. On the other hand, if it is determined that the second predetermined time or more has not elapsed since the control unit 7 shifted to the non-monitoring state (S306: NO), the work such as nursing of the supervisor is not completed. The non-monitoring state is maintained, and the process returns to step S204.

  As described above, when the second predetermined time has passed since the transition to the non-monitoring state, the state of the control unit 7 is shifted from the non-monitoring state to the monitoring state. Even if you forget to step on the second pressure-sensitive area 4 when you leave the bed 2, the monitor automatically shifts to the monitoring state after the second predetermined time has elapsed, and reliably monitors the person to be monitored who has left or falls. be able to.

  As described above, the bed leaving detection mat 1 of the present embodiment has the control unit 7 in the non-monitoring state when the monitor is on the side of the bed 2 on which the monitoring target person lies for nursing or the like. When the monitor leaves the bed 2, the control unit 7 is surely in a monitoring state and can monitor the monitoring subject's getting out of bed or falling.

  Needless to say, the embodiments of the present invention are not limited to the above-described embodiments, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The bed leaving detection mat 1 according to the present invention is, for example, a home in the case of a medical institution, a nursing facility, or home care, and detects the bed leaving or falling from the bed 2 of the monitoring subject and notifies the monitoring person. It can be suitably used as the mat 1.

DESCRIPTION OF SYMBOLS 1 Bed detection mat 2 Bed 3 1st pressure sensitive area 4 2nd pressure sensitive area 5 Display part 6 Output part 7 Control part

Claims (8)

A sheet-shaped first pressure-sensitive area disposed on the floor surface of the position to be stepped on when the person to be monitored lying on the bed steps out of the bed, and a sheet-shaped sheet provided adjacent to the first pressure-sensitive area A bed detection mat comprising: a second pressure sensitive area; an output unit that outputs caution information about the monitoring person's bed leaving; and a control unit that controls the output unit;
The control unit, when a predetermined weight or more is applied to the first pressure sensitive region, a monitoring state that causes the output unit to output the attention information, and a predetermined weight or greater is applied to the first pressure sensitive region In the case where it is possible to shift to a non-monitoring state in which the output of the caution information is not performed, and when at least a predetermined weight is applied to the second pressure-sensitive region when at least the control unit is in the monitoring state , The control unit shifts from the monitoring state to the non-monitoring state,
The second pressure-sensitive region is provided on a flow line when the monitor approaches the monitoring target person lying on the bed, and is provided adjacent to the first pressure-sensitive region on the foot side in the length direction of the bed. Bed leaving detection mat.   2. The bed leaving detection mat according to claim 1, wherein the second pressure-sensitive region is provided on a head side in a length direction of the bed with respect to an end portion on a foot side of the bed.   The second pressure-sensitive region is provided adjacent to a position of the first pressure-sensitive region farthest from the bed in the width direction of the bed. Bed leaving detection mat.   The bed leaving detection mat according to claim 3, wherein the first pressure sensitive area and the second pressure sensitive area are reversible.   In the non-monitoring state, the control unit changes from the non-monitoring state to the monitoring state when a predetermined weight or more is not continuously applied to the first pressure-sensitive region for a first predetermined time or more. 5. The bed leaving detection mat according to any one of claims 1 to 4, wherein the mat is moved.   The bed leaving detection mat according to claim 5, further comprising a display unit capable of displaying the passage of the first predetermined time.   The control unit shifts from the non-monitoring state to the monitoring state when a predetermined weight or more is applied to the second pressure-sensitive region in the non-monitoring state. The bed leaving detection mat according to claim 6.   The control unit shifts from the non-monitoring state to the monitoring state when a second predetermined time has elapsed after shifting from the monitoring state to the non-monitoring state. The bed leaving detection mat according to any one of the above.

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