JP2023170216A - nurse call system - Google Patents

Abstract

To appropriately grasp whether or not a patient is present in a sickroom.SOLUTION: A nurse call system 100 includes: a nurse call master unit 3 installed in a nurse station for responding to a call from a patient; a corridor lamp 2 installed at an entrance of each sickroom having unique identification information; a camera 29 mounted on the corridor lamp 2 which is capable of imaging a common area of a hospital; and a corridor lamp CPU 21 for transmitting object person information for identifying the object person and identification information on the corridor lamp to the nurse call master unit 3 upon detection of the object person in an image captured with the camera 29. The nurse call master unit 3 notifies the object person information and the identification information, the object person being a patient associated with a sickroom.SELECTED DRAWING: Figure 7

Description

The present invention relates to a nurse call system.

BACKGROUND ART Conventionally, there is a monitoring system in which a human sensor is installed in a hospital room in order to detect when a patient has fallen from a bed in a hospital room (Patent Document 1).

Japanese Patent Application Publication No. 2011-86286

Since the motion sensor is a sensor that detects human movement, it is difficult to determine whether the patient is stationary within the hospital room or whether the patient has moved from the hospital room to a common area.

Therefore, an object of the present invention is to provide a nurse call system that can appropriately determine whether a patient is in a hospital room.

In order to achieve the above object, the nurse call system of the present invention includes:
A nurse call main unit installed at the nurse station to respond to calls from patients,
Corridor lights installed at the entrances of the hospital rooms for each hospital room and having unique identification information;
A camera capable of photographing a common area of the hospital and mounted on the hallway light;
a control unit that transmits subject information for identifying the subject and the identification information of the hallway light to the nurse call base unit when a subject is detected in the captured image captured by the camera; , comprising;
The nurse call base device notifies the target person information and the identification information,
The subject is a patient associated with the hospital room.

According to the present invention, it is possible to provide a nurse call system that can appropriately determine whether a patient is in a hospital room.

FIG. 1 is a configuration diagram of a nurse call system according to the present invention. FIG. 2 is a functional block diagram of a hallway light included in the nurse call system of FIG. 1. FIG. 2 is a diagram showing an example of the arrangement of hallway lights included in the nurse call system of FIG. 1. FIG. It is a flowchart explaining operation example 1 of a nurse call system. It is a figure which shows an example of the message displayed on the display part of a hallway light. It is a flowchart explaining the example 2 of operation of a nurse call system. It is a flow chart explaining operation example 3 of a nurse call system. It is a flow chart explaining operation example 4 of a nurse call system. It is a flowchart explaining example 5 of operation of a nurse call system. It is a flowchart explaining example 6 of operation of a nurse call system.

Hereinafter, a nurse call system 100 according to the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram showing an example of a nurse call system 100 according to the present invention. As shown in FIG. 1, the nurse call system 100 includes a nurse call handset 1 installed in each bed in a hospital room, a hallway light 2 installed at the entrance of each patient room, and a nurse station. It includes a nurse call master device 3 and a controller 4 that controls communication between devices. The nurse call system 100 further includes a hospital room camera 5 installed in each bed, a mobile terminal 6 carried by a nurse, and an exchange 7 that manages communication of the mobile terminal 6 via a base station 8. There is.

The nurse call handset 1 is a device for a patient to call and talk to a nurse, and has a call button 1a and a plate handset 1b installed on a wall. The plate handset 1b has a connection section to which a call button is connected, and a communication section for communicating with a nurse.

The nurse call base device 3 is a device for receiving and responding to calls from patients, and includes a talking section 3a and a display section 3b. The communication section 3a has a handset for communicating with the patient and a sound alarm section such as a speaker for making in-hospital broadcasts. Various information regarding the patient is displayed on the display section 3b. The various information includes patient information, identification information such as the hallway light ID received from the hallway light 2, and images captured by the hospital room camera 5. For example, a liquid crystal monitor is used as the display section 3b.

FIG. 2 is a functional block diagram of the hallway light 2. As shown in FIG. 2, the hallway light 2 includes a hallway light CPU (central processing unit) 21, an indicator light 22, a monitor 23, a speaker 24, a storage section 25, an operation button 26, and a recovery button 27. , a communication interface (hereinafter referred to as "communication IF") 28, and a camera 29. The hallway light 2 has unique identification information. The unique identification information includes a hallway light ID and installation location information where the hallway light 2 is installed.

The hallway light CPU 21 is configured to execute various functions of the hallway light 2, such as operating the monitor 23, speaker 24, and camera 29. The hallway light CPU 21 is configured by, for example, an electronic control unit (ECU). The electronic control unit includes a microcontroller including a processor and other electronic circuits (eg, transistors, etc.). The processor is, for example, a CPU (Central Processing Unit), an MPU (Micro Processing Unit), and/or a GPU (Graphics Processing Unit). The storage unit 25 is equipped with a memory. The memory includes a ROM (Read Only Memory) in which various control programs (for example, artificial intelligence (AI) programs, etc.) are stored, and a RAM (Random Access Memory) in which various control data are temporarily stored. The processor is configured to load programs specified from various control programs stored in the ROM onto the RAM, and execute various processes in cooperation with the RAM. A program related to control and processing of the hallway light 2 is stored in the memory. The hallway light CPU 21 executes each step shown in FIGS. 4 and 6 to 10 by the processor executing the program read from the memory of the storage unit 25. Further, the hallway light CPU 21 is configured to receive operations input from the operation button 26 and the recovery button 27, and perform control according to the input operations. Corridor light CPU21 is an example of a control part.

The hallway light 2 includes an indicator light 22 as a notification section that notifies the patient of a call by flashing or lighting. Furthermore, the hallway light 2 includes, as a notification section, a monitor 23 that displays text information and a speaker 24 that outputs audio.
The indicator light 22 is, for example, a lamp, and is configured to notify by lighting or blinking that there is a call from the nurse call handset 1 in the hospital room where the hallway light 2 is installed.
The monitor 23 is, for example, a liquid crystal monitor, and is configured to display various information such as a hospital room name and a patient name. The various information includes messages encouraging disinfection. The monitor 23 is an example of a display section of the hallway light 2.
The speaker 24 is configured to sound the notification content output from the hallway light CPU 21. The speaker 24 is mounted on the hallway light 2. The speaker 24 is an example of a sound alarm part of the hallway light 2.

The storage unit 25 stores images captured by the camera 29 in addition to programs related to control and processing of the hallway light 2 .
The operation button 26 is a button for displaying/hiding various information.
The recovery button 27 is a button for stopping the notification operation and the like.
Corridor light 2 receives a call from nurse call handset 1 via communication IF 28 and line L1. Further, the hallway light 2 is connected to the nurse call main unit 3, the controller 4, and the hospital room camera 5 via the communication IF 28 and the HUB 9.

FIG. 3 is a diagram showing an example of the arrangement of the hallway lights 2. As shown in FIG. 3, a disinfectant liquid container 10 is placed near the hallway light 2. The disinfectant container 10 includes a manually pressed head 10a and a nozzle 10b that injects the disinfectant inside when the head 10a is pressed, and contains a disinfectant for disinfecting hands and fingers. The disinfectant liquid container 10 is placed, for example, near the entrance door 11 of the hospital room and under the hallway light 2.

The hallway light 2 is equipped with a camera 29. The camera 29 images a common area such as a hallway outside the hospital room. The camera 29 is capable of capturing moving images and still images. The camera 29 may take images all the time, or when a person such as a patient or an object such as a movable shelf approaches the hallway light 2, the camera 29 may detect this approach and start taking images. The image captured by the camera 29 is stored in the storage unit 25.

The camera 29 images a predetermined range from the hallway light 2 in the common area. For example, the camera 29 of the hallway light 2 installed at the entrance of hospital room No. 101 can be used to monitor the hallway within a few meters around the hallway light 2 and the entrance of the stairs leading from the floor containing room No. 101 to other floors. (not shown) can be imaged. When a visitor approaches hospital room 101 by climbing the stairs (not shown) from another floor, the camera 29 of hallway light 2 in room 101 will detect when the visitor is on the floor where room 101 is located after climbing the stairs. When the visitor appears, imaging of the visitor is started from the moment he appears from the stairs on the floor where room 101 is located, and the visitor is imaged as he moves in front of the hallway light 2 of room 101. The captured image is transmitted to the hallway light CPU 21.

When the disinfectant solution container 10 is placed near the hallway light 2, it is preferable that the predetermined range that can be imaged by the camera 29 includes the predetermined range that includes the disinfectant solution container. As a result, the camera 29 can detect, for example, whether or not a person presses the head 10a of the disinfectant container 10, whether or not an amount of disinfectant that can disinfect hands and fingers is released from the nozzle 10b, and the actions of the person disinfecting their hands. It is possible to image the presence or absence of As a result, the hallway light CPU 21 that has received the image captured by the camera 29 detects the movements of visitors and nurses who enter the hospital room by passing near the disinfectant container 10 without using the disinfectant container 10. It becomes possible.

The hospital room camera 5 is installed in the hospital room and captures images of the patient himself and surrounding images related to the patient in the hospital room. The hospital room camera 5 is connected to the hallway light 2 via a HUB 9 via LAN. The image captured by the hospital room camera 5 is transmitted to the hallway light CPU 21 via the HUB 9 and LAN.

The mobile terminal 6 is a terminal for responding to calls from a patient, and is, for example, a smartphone. The mobile terminal 6 has a display section 6a that can display the content of the nurse's call, and a sound reporting section 6b such as a speaker that can broadcast the content of the nurse's call.

The hallway light 2, the nurse call base unit 3, the control unit 4, and the hospital room camera 5 are each connected to a LAN via a HUB 9. The nurse call handset 1 is connected to a hallway light 2 via a transmission line L1 in each hospital room. The exchange 7 is connected to the controller 4 via a transmission line L2. The exchange 7 manages communication of the mobile terminal 6 via the base station 8 .

[Operation example 1]
Hereinafter, a first example of operation of the nurse call system 100 will be described using FIG. 4. FIG. 4 is a flowchart for explaining operation example 1 of the nurse call system 100.

As shown in FIG. 4, first, the camera 29 of the hallway light 2 starts capturing an image (step S101). For example, the camera 29 of the hallway light 2 installed at the entrance of hospital room No. 101 detects a disinfectant container 10 placed near the hallway light 2 of room 101, and a distance of several meters around this disinfectant container 10. Start imaging the subject included in the range. The target person in this operation example is a person whose hands should be disinfected (visitors, nurses, etc.). The image captured by the camera 29 is transmitted to the hallway light CPU 21.

Next, the hallway light CPU 21 determines whether the photographed visitor has disinfected his or her hands based on the image received from the camera 29 (step S102). For example, if a visitor to room 101 presses the head 10a of the disinfectant container 10 placed under the hallway light 2 in room 101 and disinfects his/her hands with the disinfectant that comes out of the nozzle 10b, Based on the image of the camera 29, the hallway light CPU 21 determines whether the head 10a moves up and down, whether the disinfectant is sprayed from the nozzle 10b, and whether the visitor applies disinfectant to his or her hands and rubs his or her fingers together. Detects the presence and determines whether hands and fingers have been disinfected.
If it is determined that the hands and fingers have been disinfected (YES in step S102), the hallway light CPU 21 waits until it receives an image for making the next determination in step S102.

On the other hand, if it is determined that the hands and fingers have not been disinfected based on the image received from the camera 29 (NO in S102), the hallway light CPU 21 displays a message to encourage disinfection on the monitor 23 of the hallway light 2. (Step S103). The message displayed on the monitor 23 is, for example, the words "Please disinfect your hands" displayed on the monitor 23 shown in FIG. 5. Alternatively, the text may read "Unable to detect that hands have been disinfected. Please disinfect your hands." or an illustration of spraying disinfectant from a disinfectant container. By displaying such a message to encourage disinfection on the monitor 23, it is possible to encourage those who have not disinfected their hands at the entrance of the hospital room (target persons) to disinfect their hands, and to encourage the disinfection of the hands of the target persons. Hygiene conditions can be improved.

Next, the hallway light CPU 21 generates non-disinfection information including information indicating that the subject in the captured image has not disinfected his/her hands and fingers, and information for identifying the subject in the captured image. The hallway light CPU 21 transmits the generated non-disinfection information to the nurse call base unit 3 via the communication IF 28 and the LAN (step S104).

The nurse call base unit 3 that has received the non-disinfection information notifies the non-disinfection information (step S105). The non-disinfection information may be announced by displaying the hallway light ID and the non-disinfection information in text on the display section 3b, the non-disinfection information may be announced by voice from the speaker, or the non-disinfection information by voice from the speaker. At the same time, the hallway light ID and non-disinfection information may be displayed on the display section 3b. The non-disinfection information reported from the nurse call base unit 3 is confirmed by the nurse at the nurse station. In this way, by making a notification from the nurse call base unit 3, it is possible to identify subjects who have not disinfected their hands. The head nurse, etc. who has confirmed the non-disinfection information can directly ask the visitor to disinfect their hands if the person who has not disinfected their hands is a visitor; If the person is a nurse, the head nurse can instruct the nurse to disinfect their hands. Thereby, it is possible to thoroughly disinfect the hands of the patient entering the hospital room, and it is possible to improve the sanitary condition of the hands and fingers.

[Operation example 2]
Next, a second example of operation of the nurse call system 100 will be described using FIG. 6. FIG. 6 is a flowchart for explaining operation example 2.

In operation example 2, as shown in FIG. 6, the camera 29 of the hallway light 2 starts capturing an image of a predetermined range centered on the hallway light 2 (step S201). The predetermined range centered around the hallway light 2 in operation example 2 is, for example, a range in which a target person (visitor, nurse, etc.) approaching the hospital room can be detected. Specifically, the predetermined range includes the disinfectant container 10 disposed near the hallway light 2, and also includes the entrance door 11 of the hospital room and a part of the common areas such as the hallway. The predetermined range centered on the hallway light 2 is, for example, a range centered on the hallway light 2 and several meters away from the hallway light 2. The image captured by the camera 29 of the hallway light 2 is transmitted to the hallway light CPU 21.

Based on the image received from the camera 29, the hallway light CPU 21 determines whether the captured image includes a target person (a visitor whose hands should be disinfected, a nurse, etc.). Determination as to whether or not the target person is included in the image can be performed using various types of image processing or a method similar to the detection of the presence or absence of motion in motion example 1. If the subject is not included in the captured image, the hallway light CPU 21 determines that the subject is not within the predetermined range (NO in step S202), and displays the image for the next determination in step S202. Wait until received.

On the other hand, if the target person is not included in the image received from the camera 29 but the target person is included in the next image received from the camera 29, the hallway light CPU 21 moves toward the hallway light 2. It is determined that there is a target person approaching. Further, if the subject is included in the image received from the camera 29, the hallway light CPU 21 determines that the subject has entered the predetermined range (YES in step S202). If it is determined that the subject has entered the predetermined range, the hallway light CPU 21 issues a message urging disinfection of hands via the hallway light 2 (step S203). A message urging people to disinfect their hands may, for example, be displayed on the monitor 23 of the hallway light 2 saying, "There is disinfectant at the entrance to the hospital room, so please disinfect your hands," or the speaker 24 of the hallway light 2 may display "Disinfectant in the hospital room." Please disinfect your hands with the disinfectant at the entrance before entering," the audio announcement reads. In this way, by detecting a target person approaching the entrance of a hospital room and notifying the target person in advance using the hallway light 2 that there is a disinfectant container 10 near the hallway light 2, the target person can be informed of the presence of the disinfectant container 10 near the hallway light 2. Disinfection can be encouraged.

Next, the hallway light CPU 21 determines whether the subject who has entered the predetermined range has disinfected his or her hands (step S204). The determination in step S204 is the same as step S102 shown in FIG. 4, and when it is determined that the hands and fingers have not been disinfected (NO in S204), steps S205 to S207 are the same as steps S103 to S105 in FIG. , detailed explanation will be omitted.

As explained above, the nurse call system 100 according to the above operation examples 1 and 2 includes a nurse call handset 1 for a patient to call a nurse, and a nurse station installed in order to respond to a call from a patient. It includes a nurse call base unit 3, a hallway light 2 provided at the entrance of a patient's room, etc., and a disinfectant container 10 mounted on the hallway light 2 and placed outside the patient's room and near the hallway light 2. A camera 29 captures an image of a predetermined range, and if a subject in the image captured by the camera 29 does not disinfect their hands using the disinfectant container 10, a message is sent to the hallway light 2 urging them to disinfect their hands. A hallway light CPU 21 is provided. According to this configuration, by having the hallway lights broadcast a message to encourage disinfection to those who are not disinfecting their hands (target individuals), visitors, nurses, and other targets who should disinfect their hands can disinfect their hands. This can improve the hand hygiene of the target person.

Further, in the nurse call system 100 of the above operation examples 1 and 2, the hallway light CPU 21 controls the monitor 23 of the hallway light 2 and the speaker 24 when the subject in the image captured by the camera 29 enters a predetermined range. A message may be broadcast. According to this configuration, by detecting people approaching the hospital room and notifying in advance that there is a disinfectant container 10 near the hallway light 2, the target people, such as visitors and nurses, whose hands should be disinfected can be encouraged to disinfect their hands.

Furthermore, in the nurse call system 100 of the above operational examples 1 and 2, the hallway light 2 may include a monitor 23, and a message urging disinfection of hands may be displayed on the monitor 23. According to this configuration, by displaying a message to encourage disinfection on the monitor 23 of the hallway light 2 for those who have not disinfected their hands, visitors who should disinfect their hands, nurses, and other target persons can disinfect their hands. can be encouraged more effectively.

Further, in the nurse call system 100 of the above operational examples 1 and 2, the hallway light 2 may include a speaker 24, and the speaker 24 may output a message urging disinfection of hands. According to this configuration, by issuing a warning from the speaker 24 of the hallway light 2 to those who have not disinfected their hands, disinfection of their hands is more effective for those who should disinfect their hands, such as visitors and nurses. can be encouraged.

In addition, in the nurse call system 100 of the above operation examples 1 and 2, the hallway light CPU 21 displays information indicating that the subject in the captured image has not disinfected his/her hands and that the subject is not disinfected, including subject information for identifying the subject. The information may be transmitted to the nurse call base unit 3, and the nurse call base unit 3 may notify the non-disinfection information. According to this configuration, it is possible to identify subjects who have not disinfected their hands, so if the subject who has not disinfected their hands is a visitor, the nurse may directly ask them to disinfect their hands, or if the subject has not disinfected their hands. If the target person is a nurse, the head nurse can instruct them to disinfect their hands, thereby ensuring that the target person's hand hygiene is thoroughly improved.

[Operation example 3]
Next, a third operation example of the nurse call system 100 will be described using FIGS. 1 to 3 and FIG. 7. FIG. 7 is a flowchart for explaining operation example 3.

As shown in FIG. 7, the camera 29 of the hallway light 2 starts capturing an image of a common area such as a hospital hallway (step S301). The common area imaged by the camera 29 also includes the entrance door 11 of the hospital room where the hallway light 2 is placed. The camera 29 transmits the captured image to the hallway light CPU 21. The hallway light CPU 21 determines whether a target person has been detected in the common area based on the received image (step S302). The target person in operation example 3 is a patient associated with the hospital room in which the hallway light 2 is installed, that is, a patient who belongs to the hospital room in which the hallway light 2 is installed. If the target person is not detected in the captured image, the hallway light CPU 21 determines that the target person has not been detected in the common area (NO in step S302), and continues until the next image is received for determination in step S302. stand by.

On the other hand, if the target person is detected in the captured image, the hallway light CPU 21 determines that the target person is detected in the common area (YES in step S302). When a target person is detected in a common area, for example, if the camera 29 of the hallway light 2 in the patient's room captures the image of the target person (patient) moving from his or her own hospital room to the common area, the same This includes a case where images of the subject's movement through the hallway are captured by the cameras 29 of the hallway lights 2 in multiple hospital rooms.

When determining that a target person has been detected in the common area, the hallway light CPU 21 generates target person information regarding the detected target person. The target person information includes person authentication information of the target person identified by the hallway light CPU 21. The person authentication information of the target person may be patient information identified by the transmitter ID acquired by the hallway light CPU 21 from a transmitter (not shown) carried by each patient, and the face It may also be patient information identified through authentication. Person recognition and face recognition can be performed using conventional methods.
The hallway light CPU 21 transmits the generated subject information and the identification information of the hallway light 2 to the nurse call base unit 3 (step S303). The identification information of the hallway light 2 transmitted to the nurse call base unit 3 includes the hallway light ID and the installation location information where the hallway light 2 is installed.

The nurse call base device 3 that has received the subject information and identification information notifies the subject information and identification information (step S304). The target person information and identification information may be notified by text display on the display section 3b, or by voice notification from a speaker. The characters displayed on the display unit 3b include the patient's name (an example of subject information), the patient's disease name (an example of subject information), the hallway light ID (an example of identification information), and the hallway light installation location information (identification (Example of information) may also be displayed. In this way, it is possible to identify patients who have moved from the hospital room to the common area using the hallway light CPU 21, and the nurse can notify the patient by calling the parent that the patient who should remain in the hospital has moved to the common area and is not in the hospital room. It can be notified by machine 3.

[Operation example 4]
Next, a fourth example of operation of the nurse call system 100 will be described using FIGS. 1 to 3 and FIG. 8. FIG. 8 is a flowchart for explaining operation example 4.

As shown in FIG. 8, first, the hospital room camera 5 starts capturing images inside the hospital room (step S401). The image inside the hospital room captured by the hospital room camera 5 is transmitted to the hallway light CPU 21 via the HUB 9.

The hallway light CPU 21 determines whether the subject is in the hospital room based on whether the subject (patient) is included in the received image (step S402). If the target person is included in the captured image, the hallway light CPU 21 determines that the target person is in the hospital room (YES in step S402), and includes the captured image, date and time information when the image was captured, and whether the target person is in the hospital room. The information that there is a person is stored in the storage unit 25, and the process waits until receiving an image for making the determination in the next step S402.

On the other hand, if the subject is not included in the captured image, the hallway light CPU 21 determines that the subject is not in the hospital room (NO in step S402), and determines that the subject is not included in the captured image. The date and time information and the information that there is no subject in the hospital room are stored in the storage unit 25. Next, the hallway light CPU 21 determines whether a certain period of time has passed since it was determined that the subject is not in the hospital room (step S403). The determination as to whether a certain period of time has passed since it was determined that the subject is not in the hospital room is determined by checking the information that the subject is not in the hospital room stored in the storage unit 25 and the date and time information when the image was captured. Judgment is made using The predetermined time is a predetermined time for searching for and appropriately watching over a patient when the patient is absent from the hospital room, and can be set to 5 minutes, for example. When the hallway light CPU 21 determines that the subject is not in the hospital room and a certain period of time has not elapsed (NO in step S403), the process returns to step S402.

If the hallway light CPU 21 determines that a certain period of time has passed since determining that the subject is not in the hospital room (YES in step S403), the camera 29 of the hallway light 2 starts capturing images of the common area (step S404). . The common areas photographed by the camera 29 include the entrance and exit of the hospital room, the door 11 of the hospital room, and the hallway of the hospital ward. The image captured by the camera 29 is transmitted to the hallway light CPU 21. The hallway light CPU 21 determines whether the subject (patient) is present in the common area based on whether the subject (patient) is included in the image received from the camera 29 (step S405). If the received image includes the target person, the hallway light CPU 21 determines that the target person is in the common area (YES in step S405), and includes the captured image, the date and time information when the image was captured, and the target person in this image. is stored in the storage unit 25, and the process returns to step S405.

If the target person is not included in the received image, the hallway light CPU 21 determines that there is no target person in the common area (NO in step S405), and includes the captured image, the date and time information when the image was captured, and the target person in this image. Information indicating that the person is not included is stored in the storage unit 25. Next, the hallway light CPU 21 determines whether a certain period of time has passed since it was determined that the subject is not in the common area (step S406). The determination as to whether a certain period of time has elapsed since it was determined that the subject is not in the common area can be the same as the determination as to whether or not a certain period of time has elapsed in step S403. If the hallway light CPU 21 determines that a certain period of time has not elapsed since determining that the subject is not in the common area (NO in step S406), the process returns to step S405.

On the other hand, if a certain period of time has passed since determining that the subject is not in the common area (YES in step S406), the hallway light CPU 21 determines that the subject is neither in the hospital room nor in the common area. The case where it is determined that the subject is not in the hospital room or the common area is, for example, the case where the patient moves from the hospital room through the hallway to the stairs leading to another floor. When the hallway light CPU 21 determines that the target person is neither in the hospital room nor in the common area, the corridor light CPU 21 displays information regarding the target person such as the name of the target person, and information that the target person is not in the hospital room or in the common area. Generates absence information including. The hallway light CPU 21 transmits the generated absence information to the nurse call base unit 3 (step S407). The nurse call base unit 3 that has received the absence information notifies the absence information (step S408). Absence information may be notified by voice from a speaker, or may be displayed on the display section 3b. Thereby, the nurse can check the notification from the nurse call main unit 3 and search for a patient who is away from the hospital room or common area, and can appropriately watch over the patient.

Although an example has been described in which the camera 29 starts capturing images of the common area when the hallway light CPU 21 determines that a certain period of time has passed since it was determined that the subject is not in the hospital room, the camera 29 in this operational example The imaging start timing is not limited to the example described above. The camera 29 may start capturing images at the same timing as the hospital room camera 5 starts capturing images, for example, or may constantly capture images.

[Operation example 5]
Next, operation example 5 of the nurse call system 100 will be described using FIG. 9. FIG. 9 is a flowchart for explaining operation example 5.

As shown in FIG. 9, the camera 29 of the hallway light 2 starts capturing images of the common area (step S501). Similar to Operation Example 4, the common area includes the entrance/exit of the hospital room, the door 11 of the hospital room, and the hallway. In this operational example, the hallway light 2 is also installed at the entrance of the hospital room near the no-entry area. Prohibited areas include areas where patients are at risk of falling, areas where the distance exceeds the walking limit for patients with walking difficulties, and stairs and entrances to stairs that lead to other floors for patients who have a tendency to escape from the hospital. It can be done. The prohibited area is determined according to the individual patient's medical condition and behavior characteristics such as tendency to escape. For example, the entrance to a staircase leading to another floor of a ward, or the distance traveled from a hospital room exceeds the walking limit (for example, 10 m). The vicinity of the entry-prohibited area is, for example, 1 m before the entry-prohibited area (a position 1 m closer to the subject's hallway light 2 than the entry-prohibited area). Information on the prohibited area and information on the patient for whom the prohibited area has been determined are stored in the storage unit 25, for example. The image captured by the camera 29 is transmitted to the hallway light CPU 21.

The hallway light CPU 21 determines whether or not the target person (patient) is detected in the common area based on whether the target person (patient) is included in the image received from the camera 29 (step S502). If the target person is not included in the image, the hallway light CPU 21 determines that the target person is not detected in the common area (NO in step S502), and waits until receiving an image for making the determination in the next step S502.

On the other hand, if the received image includes the target person, the hallway light CPU 21 determines that the target person has been detected in the common area (YES in step S502). Subsequently, the hallway light CPU 21 determines whether or not the target person is detected in the vicinity of the target person's entry prohibited area (step S503). Whether or not the target person has been detected near the area where the target person is prohibited from entering is determined by the fact that the target person detected in step 502 is imaged by the camera 29 of the hallway light 2 installed near the area where the target person is prohibited from entering. The judgment is made based on whether or not the If the target person is not detected near the entry-prohibited area (NO in step S503), the process returns to step S502.

On the other hand, if the target person is detected near the no-entry area (YES at step S503), the hallway light CPU 21 collects the target person information such as the name of the person detected near the no-entry area, and the hallway light 2 The system generates entry information that includes identification information of the target person and detection information that the target person was detected near the entry-prohibited area. The identification information of the hallway light 2 includes a hallway light ID and installation location information where the hallway light 2 is installed. The hallway light CPU 21 transmits the generated entry information to the nurse call base unit 3 (step S504). The nurse call base unit 3 that has received the entry information notifies the entry information (step S505). The notification of the entry information may be output by voice from a speaker, or may be displayed in text on the display section 3b. This notification from the nurse call base unit 3 allows the nurse to know at an early stage that the patient has approached the prohibited area.

As explained above, the nurse call system 100 according to the above operation examples 3 to 5 includes a nurse call base unit 3 installed at the nurse station to respond to calls from patients, and a nurse call base unit 3 installed at the entrance of each patient room. When a camera 29 mounted on the hallway light 2 and a target person are detected in the image captured by the camera 29, The system includes a hallway light CPU 21 that transmits target person information for identifying the target person and identification information of the hallway light 2 to the nurse call base unit 3. The nurse call base unit 3 notifies the subject information and identification information. The subject is a patient associated with a hospital room. According to this configuration, it is possible to identify patients who have moved from the hospital room to the common area using the hallway light CPU 21, so that it is possible to identify patients who should remain in the hospital room but have moved to the common area and are not present in the hospital room. The nurse call base unit 3 can be used to notify. Therefore, it is possible to know at an early stage that a patient who should remain in the hospital room has left the hospital room.

Further, in the nurse call system 100 of the above operation examples 3 to 5, the hospital room camera 5 capable of capturing an image inside the hospital room is further provided, and the hallway light CPU 21 is configured such that the hospital room camera 5 does not detect the subject for a certain period of time, and the camera 29 If the patient is not detected for a certain period of time, information on the absence of the patient may be transmitted to the nurse call base unit 3. According to this configuration, if the patient's whereabouts are unknown for a certain period of time or more, the nurse call base unit 3 can be notified, and the patient can be appropriately watched over by searching for the patient away from the hospital room and common areas.

Further, in the nurse call system of the above operation examples 3 to 5, when the camera mounted on the hallway light 2 located near the area where the subject is prohibited from entering in the common area detects the subject, the hallway light CPU 21 performs the following operations. The subject's entry information may be transmitted to the nurse call base unit 3. According to this configuration, it is possible to know at an early stage that the patient has approached the prohibited area. Thereby, for example, it is possible to prevent a patient who has a tendency to escape from escaping, or it is possible to promptly respond to a patient approaching a staircase or the like where there is a risk of falling.

Further, in the nurse call systems of the above operational examples 3 to 5, the identification information may include installation location information of the hallway light 2. According to this configuration, the nurse can confirm the patient's movement route from the installation location information notified from the nurse call base unit 3, and it becomes easier to find the patient moving in the common area.

[Operation example 6]
Next, operation example 6 of the nurse call system 100 will be explained using FIGS. 1 to 3 and FIG. 10. FIG. 10 is a flowchart for explaining operation example 6.

As shown in FIG. 10, the camera 29 of the hallway light 2 starts capturing images of the common area (step S601). The common area imaged by the camera 29 includes the hallway near the hallway light 2. The image captured by the camera 29 is transmitted to the hallway light CPU 21 of the hallway light 2.

The hallway light CPU 21 determines whether the target person is detected in the common area based on whether the target person is included in the received image (step S602). The subject in this operation example is a patient in a hospital room in which a hallway light 2 is installed. If the target person is not included in the received image, the hallway light CPU 21 determines that the target person is not detected in the common area (NO in step S602), and receives the next image from the camera 29 for performing the determination in step S602. Wait until.

On the other hand, if the target person is included in the received image, the hallway light CPU 21 determines that the target person has been detected in the common area (YES in step S602), and determines that the target person's posture or motion included in the image is in a specific manner. It is determined whether it is a posture or a specific motion (step S603). The specific posture is a typical posture taken when the patient's condition suddenly changes, and includes, for example, a collapsed posture, a crouching posture, and a posture holding the chest. The specific movement is a typical movement seen when the patient's condition suddenly changes, such as falling down, crouching down, or holding the chest. If the hallway light CPU 21 does not detect a specific posture or specific motion of the subject from the received image (NO in step S603), it waits until it receives the next image from the camera 29 to be detected in step S602.

When the hallway light CPU 21 detects a specific posture or specific motion of the subject from the received image (YES in step S603), the hallway light CPU 21 detects the specific posture or specific motion with subject information such as the subject's name. The identification information of the detected hallway light 2 is generated. The hallway light CPU 21 transmits the generated subject information and identification information to the nurse call base unit 3 (step S604). The identification information of the hallway light 2 includes the hallway light ID of the hallway light 2 and installation location information where the hallway light 2 is installed.
The nurse call base device 3 that has received the subject information and identification information notifies the subject information and identification information (step S605). The notification of the target person information and the identification information may be output by voice from a speaker, or may be displayed in text on the display unit 3b. The notification from the nurse call base unit 3 allows the nurse to know at an early stage that a patient who has suddenly deteriorated is in the common area, and can protect the patient at an early stage.

Next, the hallway light CPU 21 notifies target person information and identification information from the notification section of the hallway light 2 (step S606). The notification of the target person information and the identification information may be displayed in text on the monitor 23, or may be outputted as audio from the speaker 24. Furthermore, the hallway light 2 may notify of a sudden change in the patient's condition as well as the subject information and identification information. A sudden change in the patient's condition may be notified visually by, for example, flashing the indicator light 22 at a shorter time interval than when the indicator light 22 is lit for a normal call from a patient (nurse call). It may be visually notified by displaying the words "A person is lying down in the hallway" on the speaker 23, or audibly by outputting a voice from the speaker 24 saying, "A person is lying in the hallway." may be notified.

As explained above, the nurse call system 100 according to the sixth operation example includes a nurse call base unit 3 installed at the nurse station to respond to calls from patients, a nurse call base unit 3 installed at the entrance of each patient room, Corridor light 2 that has unique identification information and a camera 29 that is capable of photographing common areas of the hospital and that detects the posture or movement of the subject in the image taken by camera 29 A hallway light CPU 21 is provided. When the hallway light CPU 21 detects a specific posture or a specific motion of the subject, it transmits subject information and identification information for identifying the subject to the nurse call base unit 3, and the nurse call base unit 3 Notify target person information and identification information. According to this configuration, it is possible to know at an early stage that there is a patient whose condition has suddenly changed in the common area, and the patient can be protected at an early stage.

Further, in the nurse call system 100 of the above operation example 6, the specific posture or specific motion is a posture or motion in which the subject falls down, a posture in which the subject crouches or a motion in which the subject crouches, a posture in which the subject holds his chest, or It may be at least one of the following actions. According to this configuration, these postures and movements can be reported as a sudden change event of the subject.

Further, in the nurse call system 100 of the above operation example 6, the hallway light 2 includes an indicator light 22 for notifying a call from a patient, a monitor 23, and a speaker 24, and the hallway light CPU 21 monitors 23 for subject information and identification information. The notification may also be made from the speaker 24. According to this configuration, a sudden change in a patient in a common area is notified from the notification section of the hallway light, so that a nurse near the notified hallway light can quickly rush to the patient.

In the above-mentioned operation example 6, after the nurse call base unit 3 notifies the subject information and identification information (step S605), the notification unit of the hallway light 2 notifies the subject information and identification information (step S606). Although described above, the timing of notification of target person information and identification information is not limited to the above example. For example, the notification from the nurse call base unit 3 and the notification from the notification unit of the hallway light 2 may be made at the same time, or the notification from the nurse call base unit 3 may be made after the notification from the notification unit of the hallway light 2.

In the above-described operation example, an example in which the hallway light CPU 21 determines the image captured by the hospital room camera 5 has been described, but the configuration for determining the image is not limited to the above-described example. For example, a CPU for determining images captured by the hospital room camera 5 may be provided within the hospital room camera 5.

Further, in the above-described operation example, an example of notification from the nurse call base unit 3 has been described, but the example of notification is not limited to the above. For example, the information may be transmitted from the hallway light CPU 21 to the mobile terminal 6 and displayed in text on the display section 6a of the mobile terminal 6, or may be output as a sound from a speaker serving as the sound alarm section 6b.

The present invention is not limited to the embodiments described above, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, numerical value, form, number, arrangement location, etc. of each component in the above-described embodiments are arbitrary and not limited as long as the present invention can be achieved.

As explained above, the following matters are disclosed in this specification.
(1) A nurse call main unit installed at the nurse station to respond to calls from patients;
Corridor lights installed at the entrances of the hospital rooms for each hospital room and having unique identification information;
A camera capable of photographing a common area of the hospital and mounted on the hallway light;
a control unit that transmits subject information for identifying the subject and the identification information of the hallway light to the nurse call base unit when a subject is detected in the captured image captured by the camera; , comprising;
The nurse call base device notifies the target person information and the identification information,
A nurse call system, wherein the subject is a patient associated with the hospital room.
According to this configuration, the control unit can identify patients who have moved from the hospital room to the common area, so that the nurse can confirm that a patient who should remain in the hospital room has moved to the common area and is not in the hospital room. It can be notified by the call base unit. Therefore, it is possible to know at an early stage that a patient who should remain in the hospital room has left the hospital room.

(2) further comprising a hospital room camera capable of imaging the inside of the hospital room;
The control unit transmits absence information of the target person to the nurse call base unit when the hospital room camera does not detect the target person for a certain period of time and the camera does not detect the target person for a certain period of time. The nurse call system described in (1) above.
According to this configuration, if a patient's whereabouts are unknown for a certain period of time or more, a notification can be sent to the nurse call main unit, and the patient can be appropriately watched over by searching for the patient away from the hospital room and common areas.

(3) When a camera mounted on the hallway light located near a prohibited area for the subject in the common area detects the subject, the control unit may cause the nurse call base unit to send the subject to the nurse call base unit. The nurse call system according to (1) or (2), which transmits entry information of a person.
According to this configuration, it is possible to know at an early stage that the patient has approached the prohibited area. Thereby, for example, it is possible to prevent a patient who has a tendency to escape from escaping, or it is possible to promptly respond to a patient approaching a staircase or the like where there is a risk of falling.

(4) The nurse call system according to any one of (1) to (3), wherein the identification information includes installation location information of the hallway light.
According to this configuration, the nurse can confirm the patient's movement route from the installation location information notified from the nurse call base unit, and it becomes easier to find the patient moving in the common area.

1 Nurse call handset, 2 Corridor light, 3 Nurse call base unit, 3a Talk unit, 3b Display unit, 4 Control unit, 5 Hospital room camera, 6 Mobile terminal, 7 Exchange, 8 Base station, 10 Disinfectant container, 10a Head , 10b nozzle, 11 door, 22 indicator light, 23 monitor, 24 speaker, 25 storage unit, 26 operation button, 27 recovery button, 28 communication interface, 29 camera, 100 nurse call system

Claims (4)

A nurse call main unit installed at the nurse station to respond to calls from patients,
Corridor lights installed at the entrances of the hospital rooms for each hospital room and having unique identification information;
A camera capable of photographing a common area of the hospital and mounted on the hallway light;
a control unit that transmits subject information for identifying the subject and the identification information of the hallway light to the nurse call base unit when a subject is detected in the captured image captured by the camera; , comprising;
The nurse call base device notifies the target person information and the identification information,
A nurse call system, wherein the subject is a patient associated with the hospital room. further comprising a hospital room camera capable of imaging the inside of the hospital room,
The control unit transmits absence information of the target person to the nurse call base unit when the hospital room camera does not detect the target person for a certain period of time and the camera does not detect the target person for a certain period of time. The nurse call system according to claim 1, wherein the nurse call system transmits a message. When the camera mounted on the hallway light located in the vicinity of a prohibited area for the subject in the common area detects the subject, the control unit may cause the nurse call base unit to send information about the subject to the nurse call base unit. The nurse call system according to claim 1, wherein the nurse call system transmits entry information. The nurse call system according to claim 1 or 2, wherein the identification information includes installation location information of the hallway light.

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