JP2011135966A - Action detection system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To continue detection at other locations even when a non-target gets on a mat sensor and to prevent the generation of an erroneous report when the non-target gets on the mat sensor without making a monitoring person take time and labor. <P>SOLUTION: Radio equipment 1 is attached to the non-target, and the mat sensor 3 where a detection parts 4 for detecting an object are arranged and a reader 2 for reading the identification information of the radio equipment 1 are installed near a bed. When an object to which the radio equipment 1 is attached is detected, it is determined that the object is the non-target, and the operation of reporting is invalidated for the detection parts 4 arranged in a range corresponding to the identification information including a detection location. When the detection part 4 which has detected the object no longer detects the object, the operation of reporting is validated for the invalidated detection parts 4. In the case that the detection part 4 detects the object, when the reader 2 does not read the identification information or when the reader 2 does not read new identification information, it is determined that the object is a person to be monitored and reporting is performed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a behavior detection system for detecting behaviors such as wrinkles, falls, and falls by a patient or a care recipient in a hospital or a care facility.

  Conventionally, in hospitals and care facilities (hereinafter referred to as “facility”), patients and care recipients (hereinafter referred to as “monitored persons”) have unexpectedly left the bed and wandered. In addition, in the facility, the monitored person sometimes falls or falls from the bed. Therefore, it has been necessary to inform health care workers and caregivers (hereinafter referred to as “supervisors”) that the monitored person is hesitant and falls or falls.

  By the way, a technique for detecting that the monitored person is hesitant is known (for example, Patent Document 1). The spear alarm described in Patent Document 1 has a sheet-like sensor installed in the vicinity of the bed where the monitored person is present. When a person to be monitored or the like gets on the sheet-like sensor, the sheet-like sensor detects a human body by detecting a load on the sheet. When the human body is detected by the sheet-like sensor, it is determined that the person who is in bed has left the bed and hesitated, and a signal indicating that he / she has hesitated is output to a nurse call system or the like. As a result, in a nurse call system or the like to which a signal output from the sheet-like sensor is input, an alarm or display indicating that a wrinkle has occurred is performed, so that the monitored person can be informed that the person being monitored has frustrated. .

  However, in the technique described in Patent Document 1, not only when a person who is getting out of bed gets on a sheet-like sensor, detection of wrinkles such as a medical instrument used for the person himself or her is monitored. Even when an object that is not the object (hereinafter referred to as a non-object) is placed on the sheet-like sensor, a signal is output, so that there is a problem in that false alarms occur.

  In order to solve such a problem, a technique for invalidating load detection for a predetermined time is known (for example, Patent Document 2). The false alarm prevention device described in Patent Document 2 includes a wall-embedded slave unit that is installed on a wall surface near a bed where a monitored person is present and connected to a sheet-like mat sensor. In addition, the wall-embedded slave unit includes a stop button for stopping alarm output by the mat sensor for a predetermined time. When the stop button is operated by the supervisor, the wall-embedded slave unit outputs a signal even if a non-target object gets on the mat sensor until a predetermined time elapses after the stop button is operated. I try not to. As a result, when the monitoring person is performing a nursing action or the like on the monitored person, even if he / she gets on the mat sensor by mistake, the alarm output is not performed, and erroneous reporting can be prevented.

  However, the technique described in Patent Document 2 has a problem in that it takes time for the monitor because the monitor has to operate the stop button every time the monitored person performs a treatment. . In the technique described in Patent Document 2, since the monitored person can operate the stop button, the wall-embedded slave unit outputs a signal when the monitored person gets on the mat sensor after operating the stop button. There was a problem that the behavior of the monitored person could not be detected.

  By the way, the technique which switches the heating area of a sheet-like electric carpet is known (for example, patent document 3 etc.). The electric carpet described in Patent Document 3 is arranged such that the heating area of the heater of the square carpet is divided into a left block and a right block. When the heating area is switched by the user according to the situation at the time of use or the number of users, the electric carpet energizes only the left block or energizes only the right block. Switch.

  When such a technique described in Patent Document 3 is applied to the technique described in Patent Document 2, the load when riding on one of the right block and the left block obtained by dividing the sheet-like mat into left and right parts The detection of the load can be disabled while the detection of the load on the other block is enabled. Thus, the monitor can switch between a place where a signal is not output even when a non-object is on the mat sensor, and a place where a signal is output when the monitored person is on the mat sensor. However, this conventional technique has the following problems. In other words, it is necessary for the supervisor to decide where the signal is not output in advance, switch the detection of the load of the block corresponding to that place to invalid, and place a non-object on that block. I will let you.

JP-A-11-213266 JP 2007-282878 A Japanese Patent Laid-Open No. 10-276892

  The present invention has been made to solve such a problem, and in a behavior detection system for detecting that a person to be monitored rides on a mat sensor, when a non-target object gets on the mat sensor, An object is to continue detection at other locations and to prevent the occurrence of false alarms when a non-target object gets on the mat sensor without taking the trouble of the observer.

  In order to solve the above-described problem, the behavior detection system of the present invention attaches a wireless device to a non-target object that is not a detection target, and includes a plurality of detection units that detect objects in a predetermined range. A mat sensor arranged so that an object can be detected over and a reading device for reading identification information from the wireless device are installed in the vicinity of the bed. Then, when the detection unit detects an object, when the reading device reads the identification information, a notification operation is performed on the detection unit arranged in a range corresponding to the read identification information including the detection unit. Disabled. In addition, when the detection unit that detects the object stops detecting the object, the notification operation is enabled for the detection unit that has disabled the notification operation. In addition, when the detection unit that is not invalid detects an object and the reading device reads new identification information, the detection unit arranged in the range corresponding to the read identification information including the detection unit On the other hand, the notification operation is disabled. On the other hand, when the detection unit detects an object, the reading device does not read the identification information, or when the detection unit that is not invalid detects the object, the reading device does not read the identification information. , So as to notify.

  According to the present invention configured as described above, when the detection unit detects an object to which the wireless device is attached, it is determined that the detected object is a non-target object. The notification operation is automatically switched to invalid for the detection units arranged in the range corresponding to the identification information. In addition, when the detection unit that detects the object to which the wireless device is attached stops detecting the object, it is determined that the non-target object has moved away from the mat sensor. The notification operation is automatically switched to valid. As a result, when a wireless device is attached to a non-target object, notification is not performed simply by the non-target object getting on the mat sensor, so that it is possible to prevent the occurrence of false alarms without making the supervisor troublesome. Further, when the detection unit in which the notification operation is not disabled detects an object, and the reading device does not read new identification information, it is determined that the detected object is a monitored person, so that notification is made. Done. Thereby, when a non-target object gets on a mat | matte sensor, the detection of a to-be-monitored person's action in another place can be continued.

It is a block diagram which shows the structural example of the action detection system by this embodiment. It is explanatory drawing which shows the example of arrangement | positioning of the detection part in the mat sensor of the action detection system by this embodiment. It is explanatory drawing which shows the example of the memory content of the memory | storage part of the control apparatus of the action detection system by this embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of the behavior detection system according to the present embodiment. As shown in the figure, the behavior detection system according to the present embodiment includes a wireless device 1, a reading device 2, a mat sensor 3, and a control device 10.

  Further, the mat sensor 3 includes a detection unit 4. The control device 10 includes a control unit 11, an interface (hereinafter referred to as I / F) unit 12, a notification unit 13, and a storage unit 14.

  In FIG. 1, a wireless device 1 is configured by a so-called IC (Integrated Circuit) tag or the like, and is used for a part of a non-object that is not a detection target (for example, a footwear of a supervisor, a person to be monitored). Attached to the leg of a medical device). Here, the wireless device 1 stores in advance identification information (for example, a non-object ID) for identifying the non-object to which the wireless device 1 is attached. In addition, when the wireless device 1 approaches a distance at which the wireless device 1 and the reading device 2 can perform wireless communication, the wireless device 1 receives a radio wave transmitted from the reading device 2 and is supplied with power by the received radio wave. Then, the wireless device 1 transmits the identification information stored in the own device to the reading device 2. Further, the distance at which the wireless device 1 can transmit the identification information to the reading device 2 is the radio wave transmitted from the reading device 2 by the wireless device 1 at least when a non-object is on the mat sensor 3. It is preferable that the distance be such that it can be reliably received.

  The reading device 2 is configured by a so-called IC tag reader or the like, and is installed near the bed. Here, the reading device 2 is connected to the control device 10 via a transmission line. The reading device 2 periodically transmits radio waves in order to supply power to the wireless device 1. When the wireless device 1 that has received the radio wave transmits identification information, the reading device 2 receives the identification information. Then, the reading device 2 reads the received identification information and outputs it to the control device 10. When the non-object is on the mat sensor 3, the reading device 2 continues to receive the identification information transmitted from the wireless device 1 attached to the non-object.

  The mat sensor 3 is configured by a sheet-like sensor or the like, and is for detecting an object near the bed. Here, the mat sensor 3 is installed in the vicinity of the bed so that it can detect that the person to be monitored gets out of the bed. The mat sensor 3 is connected to the control device 10 via a transmission line. The mat sensor 3 is provided with a plurality of detection units 4 so that an object can be detected over the entire detection range. The detection unit 4 detects an object within a predetermined range by detecting a load on the seat. Here, the predetermined range indicates a range in which the detection unit 4 can detect an object. When the detection unit 4 is arranged on the mat sensor 3, a region where a load cannot be detected is generated between a predetermined range of a certain detection unit 4 and a predetermined range of another detection unit 4 adjacent to the detection unit 4. By disposing a plurality of detection units 4 so as not to exist, the mat sensor 3 can detect an object over the entire area of the device itself.

  When the detection unit 4 detects an object, the mat sensor 3 outputs a detection signal to the control device 10. Further, the mat sensor 3 continuously outputs a detection signal while the detection unit 4 continues to detect an object. The detection signal includes detection unit identification information (for example, address information given according to the arrangement of the detection unit 4) for identifying the detection unit 4 that has detected the object from the other detection units 4.

  For example, as shown in FIG. 2, in the mat sensor 3, a plurality of detectors 4 are equally arranged in four vertical rows and five horizontal columns over the entire area of the mat body. Also, the detection unit 4 is assigned row addresses 1, 2,..., And column addresses A, B,. The value of the detection unit identification information is indicated by a combination of a row address and a column address. For example, if the combination of the row address and the column address is 1A, and the value of the detection unit identification information included in the detection signal is 1A, the detection unit 4 in the first row A column has detected the object. become.

  In the present embodiment, a plurality of detection units 4 are arranged in four vertical rows and five horizontal columns over the entire area of the mat body, but the present invention is not limited to this. For example, a plurality of detectors 4 may be arranged in five rows and six columns across the entire area of the mat body, or a plurality of detectors 4 may be arranged in two rows and one line across the entire mat body. Also good. In short, the number and arrangement of the detection units 4 are not limited as long as the mat sensor 3 can detect an object over the entire area of the mat body.

  The control device 10 is installed in a room (for example, a staff room) where a monitor for monitoring the monitored person is present, and is for informing the monitored person of the behavior of the monitored person. Here, the reading device 2 and the mat sensor 3 installed in the vicinity of each bed are connected to the control device 10. When the identification information output from the reading device 2 or the detection signal output from the mat sensor 3 is input, the control device 10 determines whether a non-object is on the mat sensor 3 by a determination process described later. Or whether the monitored person is on the mat sensor 3 or not.

  The control unit 11 controls each component of the control device 10 as described later. Moreover, the control part 11 performs the 1st control-3rd control mentioned later. The I / F unit 12 connects the control device 10 to the reading device 2 and inputs the identification information output from the reading device 2. The I / F unit 12 connects the control device 10 to the mat sensor 3 and inputs a detection signal output from the mat sensor 3.

  The alerting | reporting part 13 is for alert | reporting a to-be-monitored person's action. In addition, the notification device 13 includes a speaker, a display display, an indicator lamp, and the like, and outputs a ringing tone and voice from the speaker, displays a call on the display display, and lights or blinks the indicator lamp. To notify. Here, when the detection unit 4 detects an object, the control unit 11 operates or does not operate the notification unit 13 by a determination process described later.

  The storage unit 14 is configured by a storage device such as a memory. Moreover, the memory | storage part 14 has memorize | stored beforehand the range information which shows the range which invalidates the detection in the mat sensor 3 for every non-object. Here, the range in which the detection is invalidated is an invalidity that is determined according to the size of the non-object (ground contact area) or characteristics (whether it is a person or an object) when the non-object is on the mat sensor 3. The detection part 4 which performs is shown.

  As shown in FIG. 3A, the storage unit 14 includes a non-object ID area 141 that stores identification information for identifying a non-object to which the wireless device 1 is attached, and the non-object is the mat sensor 3. Is stored in association with a range area 142 for storing range information indicating a range in which detection is invalidated.

  For example, information such as “01” and “02” is stored in the non-object ID area 141 as identification information. The range area 142 stores information such as “9” and “1” as range information. Here, “9”, which is the value of the range information, indicates a total of nine detection units 4 including the detection unit 4 that detects the object and the detection units 4 around the detection unit 4. Here, in the detection unit 4 (for example, 2B, 3B, 2C, 3C, 2D, and 3D in FIG. 2) having eight detection units 4 around, there are nine detection units 4 in total. However, in the detection unit 4 (for example, 2A, 3A, 1B, 4B, 1C, 4C, 1D, 2D, 2E, and 3E in FIG. 2) having only five detection units 4 around, a total of six detection units 4 It is assumed that the detection unit 4 satisfies the range information “9”. In addition, in the detection unit 4 (for example, 1A, 4A, 1E, and 4E in FIG. 2) in which only three detection units 4 exist in the periphery, the range information “9” is satisfied by a total of four detection units 4. It shall be. Further, “1” that is the value of the range information indicates a total of one detection unit 4 including only the detection unit 4 that has detected the object.

  In addition, the storage unit 14 stores the identification information read by the reading device 2 and the detection unit identification information for identifying the detection unit 4 that has detected the object when the identification information is read. Here, in the initial state, the identification information read by the reading device 2 and the detection unit identification information for identifying the detection unit 4 that has detected the object when the identification information is read are not stored in the storage unit 14. .

  As shown in FIG. 3B, the storage unit 14 stores the identification information and the detection unit identification information in association with each other. As shown in the figure, the storage unit 14 is for identifying the non-object ID region 143 that stores the identification information read by the reading device 2 and the detection unit 4 that has detected the object when the identification information is read. An address area 144 for storing detection unit identification information is stored. For example, when the detection unit 4 arranged in the B column in the first row in FIG. 2 detects a load due to the non-object whose identification information value is 01, the identification information is displayed in the non-object ID area 143. “01” is stored, and “1B” is stored in the address area 144 as detection unit identification information.

  As the first control, the control unit 11 has a non-object on the mat sensor 3, the detection unit 4 detects an object, and the mat sensor 3 outputs a detection signal including detection unit identification information of the detection unit 4. In this case, a process of invalidating the operation of the notification unit 13 is executed. Specifically, the control unit 11 determines whether or not the I / F unit 12 has input the detection signal output from the mat sensor 3. When the control unit 11 determines that the detection signal has been input, the control unit 11 determines whether the I / F unit 12 has input the identification information output from the reading device 2. When the control unit 11 determines that the identification information has been input, the control unit 11 refers to the storage unit 14 and determines whether the input identification information is already stored. When the control unit 11 determines that the identification information is not stored, the control unit 11 acquires range information stored in association with the input identification information. Moreover, the control part 11 extracts the detection part identification information contained in the input detection signal. Moreover, the control part 11 determines the detection part 4 which invalidates operation | movement of the alerting | reporting part 13 by the extracted detection part identification information and the acquired range information, and does not operate the alerting | reporting part 13. FIG. Then, the control unit 11 stores the input identification information and the extracted detection unit identification information in the storage unit 14 in association with each other. In this state, even if the detection unit 4 determined by the control unit 11 that invalidates the operation of the notification unit 13 detects an object, the control unit 11 does not operate the notification unit 13.

  Moreover, the control part 11 performs the process which validates operation | movement of the alerting | reporting part 13, when the non-object which was riding on the mat sensor 3 leaves | separates from the mat sensor 3 as 2nd control. Specifically, the control unit 11 determines whether or not the I / F unit 12 continuously inputs a detection signal including detection unit identification information of the detection unit 4 that has detected the object. When the control unit 11 determines that the detection signal is no longer input, the control unit 11 specifies the detection unit 4 that no longer detects the object based on the detection unit identification information. The control unit 11 refers to the storage unit 14 and acquires identification information stored in association with the detection unit identification information of the specified detection unit 4. Then, the control unit 11 deletes the acquired identification information and the specified detection unit identification information from the storage unit 14. On the other hand, the control unit 11 acquires range information stored in the storage unit 14 in association with the identification information. Moreover, the control part 11 determines the detection part 4 which validates operation | movement of the alerting | reporting part 13 with the specified detection part identification information and the acquired range information.

  In addition, as a third control, the control unit 11 gets on the mat sensor 3, the detection unit 4 detects an object, and the mat sensor 3 generates a detection signal including detection unit identification information of the detection unit 4. When it outputs, the process which operates the alerting | reporting part 13 is performed. Specifically, the control unit 11 determines whether or not the I / F unit 12 has input the detection signal output from the mat sensor 3. When the control unit 11 determines that the detection signal has been input, the control unit 11 determines whether the I / F unit 12 has input the identification information output from the reading device 2. In this case, since the control unit 11 determines that the identification information is not input, the control unit 11 operates the notification unit 13.

  In addition, as a third control, the control unit 11 is configured to perform a control other than the detection unit 4 determined by the control unit 11 when the monitored person invalidates the operation of the notification unit 13 while the non-object is on the mat sensor 3. When the detection unit 4 detects an object and the mat sensor 3 outputs a detection signal including detection unit identification information of the detection unit 4, the notification unit 13 is turned on. Execute the process to be operated. Specifically, the control unit 11 determines whether or not the I / F unit 12 has input the detection signal output from the mat sensor 3. When the control unit 11 determines that a detection signal has been input, it is determined whether the I / F unit 12 has input identification information output from the reading device 2. In this case, the control unit 11 determines that the identification information of the wireless device 1 attached to the non-object is input. Further, the control unit 11 determines whether or not the I / F unit 12 has input new identification information from the reading device 2 (in other words, whether or not identification information other than the identification information stored in the storage unit 14 has been input). )). In this case, the control unit 11 determines that new identification information is not input (in other words, identification information other than the identification information stored in the storage unit 14 is not input). To work.

  Here, in the behavior system according to the present embodiment, a process of notifying the notifying unit 13 will be described based on the examples illustrated in FIGS. 2 and 3. Further, in this example, the wireless device 1 with the identification information value “01” is attached to the drip stand, and the range information value stored in advance in the storage unit 14 in association with the identification information is set to “9”. Yes.

(1) When a non-object is put on the mat sensor 3 When the monitoring person puts the drip stand on the mat sensor 3, the detection unit 4 arranged in 1B detects an object, and the reading device 2 stores it in the wireless device 1. The identification information “01” is read. The mat sensor 3 outputs a detection signal including the detection unit identification information “1B” of the detection unit 4 that has detected the object to the control device 10. Further, the reading device 2 outputs the read identification information “01” of the wireless device 1 to the control device 10. The I / F unit 12 receives the detection signal output from the mat sensor 3 and receives the identification information “01” output from the reading device 2. The control unit 11 refers to the storage unit 14, determines that the input identification information “01” is not stored in the storage unit 14, and stores the range information “01” associated with the input identification information “01”. 9 ”is acquired. Further, the control unit 11 extracts the detection unit identification information “1B” included in the input detection signal. Further, the control unit 11 detects the detection unit 4 “1A, 2A, 1B, 2B, 1C, and the like that invalidates the operation of the notification unit 13 based on the extracted detection unit identification information“ 1B ”and the acquired range information“ 9 ”. 2C "is determined, and the detection of objects by those detection units 4 is invalidated. The control unit 11 stores the input identification information “01” and the extracted detection unit identification information “1B” in the storage unit 14 in association with each other. Here, the control unit 11 does not operate the notification unit 13 although the detection unit 4 arranged in 1B detects an object.

(2) When the monitor removes the drip stand placed on the mat sensor 3 When the monitor removes the drip stand placed on the mat sensor 3, the detection unit 4 detects the object detected by the I / F unit 12 Since the detection signal including the part identification information “1B” is no longer input, the control unit 11 specifies the detection unit 4 that no longer detects the object by the detection part identification information “1B”. In addition, the control unit 11 refers to the storage unit 14 and acquires the identification information “01” stored in association with the detection unit identification information “1B” of the specified detection unit 4. Then, the control unit 11 deletes the acquired identification information “01” and the specified detection unit identification information “1B” from the storage unit 14. On the other hand, the control unit 11 acquires the range information “9” stored in the storage unit 14 in association with the identification information “01”. In addition, the control unit 11 detects the detection unit 4 “1A, 2A, 1B, 2B, 1C, and the like that enables the operation of the notification unit 13 based on the specified detection unit identification information“ 1B ”and the acquired range information“ 9 ”. 2C "is determined, and the detection of objects by the detection unit 4 is made effective.

(3) When the person to be monitored rides on the mat sensor 3 with nothing on the mat sensor 3 When the person to be monitored gets on the mat sensor 3 with nothing on the mat sensor 3, 2E The detecting unit 4 arranged in the position detects an object. The mat sensor 3 outputs a detection signal including the detection unit identification information “2E” of the detection unit 4 that has detected the object to the control device 10. Further, since the reading device 2 cannot read the identification information of the wireless device 1, it does not output the identification information to the control device 10. When the I / F unit 12 inputs only the detection signal output from the mat sensor 3, the control unit 11 operates the notification unit 13. And the alerting | reporting part 13 alert | reports the action by a to-be-monitored person.

(4) When a non-object is on the mat sensor 3 while the non-object is on the mat sensor 3 A state in which the monitor places the drip stand on the mat sensor 3 (the state of (1) described above) ), When the person to be monitored gets on the mat sensor 3, the detection unit 4 arranged in 2E detects the object, and the reading device 2 reads the identification information “01” stored in the wireless device 1. The mat sensor 3 outputs a detection signal including the detection unit identification information “2E” of the detection unit 4 that has detected the object to the control device 10. Further, the reading device 2 outputs the read identification information “01” of the wireless device 1 to the control device 10. The I / F unit 12 receives the detection signal output from the mat sensor 3 and receives the identification information “01” output from the reading device 2. The control unit 11 refers to the storage unit 14, determines that the input identification information “01” is stored in the storage unit 14, and operates the notification unit 13. And the alerting | reporting part 13 alert | reports the action by a to-be-monitored person.

  As described above in detail, in the behavior detection system of the present invention, the wireless device 1 is attached to a non-target object that is not a detection target, and a plurality of detection units 4 that detect objects in a predetermined range are included in the detection range. A mat sensor 3 arranged so that an object can be detected over the entire area and a reading device 2 that reads identification information from the wireless device 1 are installed in the vicinity of the bed. When the detection unit 4 detects an object and the reading device 2 reads the identification information, the operation of the notification unit 13 is invalidated by the detection unit identification information of the detection unit 4 and the range information determined by the identification information. The detection unit 4 is determined, and the acquired identification information and the detection unit identification information are associated with each other and stored in the storage unit 14. Further, when the detection unit 4 that has detected the object stops detecting the object, the control unit 11 enables the operation of the notification unit 13 to the detection unit 4 that has disabled the operation of the notification unit 13. At the same time, the identification information and the detection unit identification information stored in the storage unit 14 are erased. As a result, when the wireless device 1 is attached to a non-target object, the notification is not performed only by the non-target object getting on the mat sensor 3, so that it is possible to prevent the occurrence of false alarms without making the supervisor troublesome. .

  Further, when the detection unit 4 that does not invalidate the operation of the notification unit 13 detects an object, when the reading device 2 reads new identification information, it is determined by the detection unit identification information and the identification information of the detection unit 4. The detection unit 4 that invalidates the operation of the notification unit 13 is determined based on the range information, and the acquired identification information and the detection unit identification information are associated with each other and stored in the storage unit 14. On the other hand, when the detection unit 4 detects an object, the reading device 2 does not read the identification information, or when the detection unit 4 that does not invalidate the operation of the notification unit 13 detects the object, the reading device When 2 is not reading new identification information, the control unit 11 operates the notification unit 13. Thereby, when a non-target object gets on the mat | matte sensor 3, the detection of a to-be-monitored person's action in the other place can be continued.

  In the above-described embodiment, the mat sensor 3 does not output a detection signal even if the detection unit 4 determined by the control unit 11 detects an object in order to invalidate the operation of the notification unit 13. However, it is not limited to this. For example, in order to invalidate the operation of the notification unit 13, the mat sensor 3 may output a detection signal when the detection unit 4 determined by the control unit 11 detects an object. In this case, the control unit 11 stores the detection unit 4 that invalidates the operation of the notification unit 13 and prevents the notification unit 13 from operating even when the detection unit 4 inputs a detection signal.

  In addition, the configuration, processing procedure, contents, and the like of the nurse call system can be variously modified and implemented without departing from the gist of the present invention. Moreover, various inventions can be formed by combining a plurality of constituent elements disclosed in the embodiment. For example, you may make it delete a some component from all the components shown by embodiment. Furthermore, you may make it combine the component covering different embodiment suitably.

DESCRIPTION OF SYMBOLS 1 Radio | wireless machine 2 Reading apparatus 3 Mat sensor 4 Detection part 10 Control apparatus 11 Control part 12 Interface (I / F) part 13 Notification part 14 Storage part 141,143 Non-object ID area 142 Range area 144 Address area

Claims (1)

A wireless device that is attached to a non-object that is not to be detected and stores identification information for identifying the non-object;
A mat sensor that is installed in the vicinity of the bed where the monitored person who is the detection target is present and that detects a plurality of objects in a predetermined range so that the object can be detected over the entire detection range;
A reader installed near the bed and reading identification information from the wireless device;
A notification unit for notifying the behavior of the monitored person, and the detection unit identification information for identifying the identification information read by the reader and the detection unit that has detected an object near the bed when the identification information is read. Are stored in association with each other, and a storage unit that preliminarily stores range information indicating a range in which detection is invalidated for each identification information, and when the detection unit detects the object, the reading device reads the identification information. In some cases, if the identification information read by the reading device with reference to the storage unit is not stored in the storage unit, it is specified by the range information corresponding to the identification information including the detection unit that has detected the object. The operation of the notification unit is invalidated for the detection unit arranged in the range, and the identification information read by the reading device and the detection unit detecting the object are identified. The first control for associating the detection unit identification information for storage with the storage unit and storing it in the storage unit, and when the detection unit that detects the object no longer detects the object, it is arranged in the range specified by the range information The operation of the notification unit is enabled for the detection unit that is being detected, and the detection unit identification information of the detection unit that no longer detects the object with reference to the storage unit and the detection unit identification information are stored in association with each other. A second control for erasing the identification information that has been detected from the storage unit, and a detection unit that detects when the reading device has not read the identification information when the detection unit detects the object, or has detected the object The reading device does not read the identification information when the detection unit other than the detection unit arranged in the range specified by the range information corresponding to the identification information detects the object. Sometimes, a controller and a control unit that performs a third control to operate the notification unit,
A behavior detection system comprising:

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