JP2007036977A - Intercom system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a system common in wiring and small in equipment size by using a mobile phone as a portable terminal called from a slave unit. <P>SOLUTION: The intercom system comprises: a nurse call slave unit 2 installed inside a room; a passageway lamp 3 installed for each room and flickers/lights off a call indicator lamp 31 when there is a call from the slave unit; a nurse call master unit 4 installed within a nurse station; a controller 5 for controlling the passageway lamp and the master unit; an IP mobile phone 6 which is carried with a person in charge of medical treatment and uses a communication protocol for LAN for establishing a call to transmit/receive audio signals using digital data; an exchange 7 which specifies an address of an IP mobile phone with which a call is to be established and exchanges digital audio signals through packet exchange; and a wireless access point 8 connected to the exchange via LAN wiring L4 and including a wireless LAN function for wirelessly transmitting/receiving digital audio data of the IP mobile phone. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an interphone system in which a slave unit, a master unit and a mobile terminal communicate with each other, and in particular, by using a mobile terminal called from the slave unit as an IP mobile phone, wiring can be shared and equipment can be downsized. It is related with the intercom system which can be planned.

  Conventionally, as this type of intercom system, a nurse is carried in a facility with a plurality of slave units provided in a hospital room, a master unit for calling and calling from a plurality of slave units assigned with an identification number, A portable master unit that can display images and is called from the slave unit to make a call, a plurality of cameras that are installed in the room together with the slave unit and transmit video signals captured by a digital data protocol, and the master unit and the portable parent unit Call system comprising an IP telephone exchange connected to a portable device and connected to a portable device, transmitting a call signal from the child device to the portable parent device, and transmitting a video signal transmitted from the camera to the portable parent device as digital data Is disclosed (for example, see Patent Document 1). In the case where the slave unit is connected to the master unit via a corridor lamp, it is common to connect the master unit and the corridor lamp via a controller.

  Such a nurse call system is carried by a nurse under the control of an IP telephone switch that detects a call signal from a slave when a patient on a hospital bed presses the nurse call button of the slave to make a nurse call. The portable master unit notifies the patient that there is a nurse call request, and imaging of the periphery of the slave unit is started by a camera installed in the vicinity of the called slave unit.

Japanese Unexamined Patent Publication No. 2005-79857 (paragraph numbers “0039”, “0040”, “0052”)

  However, in the nurse call system described in the background art, since it is installed in a medical facility, a portable handset uses a PHS (Personal Handyphone System), which has a minor degree of interference caused by radio wave interference with medical electrical equipment. Therefore, a base station (antenna) connected by dedicated communication wiring and a large PHS switch are necessary. Also, since the camera wiring installed in the vicinity of each slave unit is also a LAN wiring, a LAN wiring independent of the communication wiring of the PHS and the communication line of the slave unit is necessary. Three independent wirings were required.

  In addition, when the slave unit is connected via a corridor lamp, the corridor lamp that connects the slave unit and the control device and the base station (antenna) that connects the portable master unit and the exchange are both in the hospital room. The hallways were cluttered because they were installed independently in the hallway.

  The present invention has been made to solve such a conventional problem, and by using a portable terminal called from a slave unit as an IP cellular phone, common wiring in the system and miniaturization of equipment are achieved. An object is to provide an intercom system capable of performing the above. It is another object of the present invention to provide an intercom system that can simplify the system by providing the controller with the function of the exchange. In addition, the present invention provides an intercom system that can reduce the number of devices installed in the hallway while reducing the number of lines by providing the hallway with the function of the base station (antenna) related to the IP mobile phone. Objective. Another object of the present invention is to provide an inexpensive intercom system by simplifying the system.

  An intercom system according to a first aspect of the present invention that achieves the above-described object is provided with a slave unit installed in a room for a person to be nursed such as a patient in a hospital bed to call a medical staff such as a nurse, A call indicator light flashes / lights when a call is received from a handset by a person who should be nursed, and a call from a person who should be nursed is located in a different facility from the room via the hall light. To establish a call, to establish a call, to establish a call, to control a corridor lamp and to control the main unit, and to carry out a call from a person who should be nursed by a medical worker. The IP mobile phone that transmits and receives voice signals using digital data using the LAN communication protocol and the IP mobile phone address that establishes the call are identified, and digital audio is transmitted by packet switching. An exchange for exchanging a signal, is connected to the exchange by the first LAN wiring, in which a plurality of wireless access points with a wireless LAN function for transmitting and receiving digital audio data of the IP mobile phone wirelessly.

  According to the interphone system according to the first aspect as described above, since the wireless access point having a wireless LAN function for wirelessly transmitting and receiving with the IP mobile phone is provided, the wireless camera and the measurement for measuring the vital sign of the patient Since it is possible to perform wireless communication with a device having a wireless LAN function such as a device, wire saving can be realized. Therefore, it becomes possible to construct a system at a lower price than PHS.

  An intercom system according to a second aspect of the present invention that achieves the above-described object is provided with a slave unit that is installed in a room and for a person to be nursed such as a patient in a hospital bed to call a medical worker such as a nurse, A call indicator light flashes / lights when a call is received from a handset by a person who should be nursed, and a call from a person who should be nursed is located in a different facility from the room via the hall light. In addition, the main unit for establishing the call and the voice carried by the digital data using the communication protocol for the LAN for carrying out the call from the person who should be cared and carried by the medical staff and establishing the call The IP mobile phone that transmits and receives signals, and the IP mobile phone that controls the corridor lamp and the master unit, and establishes a call when a call that includes the IP mobile phone as the destination is received from the master unit or the slave unit. Is connected to the controller by the first LAN wiring, and the digital voice data of the IP mobile phone is transmitted to the IP mobile phone. And a plurality of wireless access points having a wireless LAN function for wireless transmission / reception.

  According to the interphone system according to the second aspect as described above, the controller can exchange the line with the IP mobile phone via the wireless access point, so that no exchange is required. Therefore, an inexpensive system can be constructed.

  According to a third aspect of the present invention, in the intercom system according to the first aspect or the second aspect, the wireless access point images a measuring instrument that measures a vital sign of a person to be nursed, a personal computer of a doctor, and a room A hub for connecting an electronic device such as a camera to the LAN wiring. According to such an intercom system, since the wireless access point has a hub function, a wired LAN connection device such as a camera that does not have a wireless LAN function can be easily connected. Therefore, the number of devices that can be connected to the wireless access points further increases, and the wireless access points can be easily connected to each other, thereby increasing the degree of freedom of wiring.

  According to a fourth aspect of the present invention, in the intercom system according to the first to third aspects, the corridor lamp is replaced by a second LAN wiring instead of the wireless access point connected to the first LAN wiring. It is connected to a corridor lamp or controller and has a built-in wireless access point. According to such an intercom system, a single wireless access point can be eliminated from the corridor by integrating the corridor lamp and the wireless access point. Therefore, since the single wireless access point is not exposed in the hallway, the appearance of the hallway is clean.

  According to a fifth aspect of the present invention, in the intercom system according to the fourth aspect, the corridor lamp is connected to the extension master unit through the second LAN wiring. Such an intercom system eliminates the need for an extension main trunk that has been required in the past, and further reduces the number of wires.

  According to a sixth aspect of the present invention, in the intercom system according to the first to fifth aspects, the second LAN wiring for connecting the corridor lamp and the controller has a digital communication signal of the corridor lamp and an IP mobile phone. The digital audio signal is superimposed and transmitted. According to such an intercom system, the digital communication signal of the corridor lamp and the digital audio signal of the IP mobile phone are superimposed and transmitted on the second LAN wiring connecting the corridor lamp and the controller. The cordless handset trunk line, which was necessary in the past, is no longer necessary, and further wire saving is possible.

  A seventh aspect of the present invention is the interphone system according to the first aspect to the sixth aspect, wherein the master unit is a display unit, an IP mobile phone number or an IP mobile phone that can be accessed via a wireless access point. And a control unit that displays the name of a medical worker using the telephone on the display unit. According to such an intercom system, since the master unit can grasp the operating status of the IP mobile phone and the mobile phone status of the medical worker, the operating status of the IP mobile phone system and the working status of the medical worker can be determined. I can confirm.

  In an intercom system according to an eighth aspect of the present invention, in the intercom system according to the seventh aspect, the control unit displays an alarm when the line usage rate of the LAN wiring connected to the wireless access point exceeds a predetermined threshold value. It has the control function displayed on the part. According to such an interphone system, since the master unit can grasp the line usage rate of the LAN wiring connected to the wireless access point, it is possible to grasp in advance the occurrence of an abnormal situation such as line congestion of the IP mobile phone system. it can.

  In the intercom system according to an eighth aspect of the present invention, the control unit has a control function for displaying an alarm on the display unit when a terminal other than a predetermined terminal is connected to the wireless access point. It is what you have. According to such an intercom system, the parent device can grasp that an IP mobile phone, a wireless camera, and a device other than a measuring instrument for measuring a patient's vital sign are connected, which may adversely affect the IP mobile phone system. Can be eliminated.

  ADVANTAGE OF THE INVENTION According to this invention, the intercom system which can aim at the common wiring in a system and size reduction of an apparatus can be provided by making the mobile terminal which a medical worker carries into an IP mobile phone. Further, according to the present invention, it is possible to provide an intercom system that can simplify the system by providing the controller with the function of the exchange. Further, according to the present invention, the function of the base station (antenna) related to the IP mobile phone can be applied to the corridor lamp, and the call data between the corridor lamp and the controller can be transmitted using the communication protocol for LAN. Therefore, it is possible to provide an intercom system that can reduce the number of devices installed in the hallway with further line saving. Furthermore, according to the present invention, an inexpensive intercom system can be provided by simplifying the system.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best mode for carrying out the invention will be described with reference to the drawings. FIG. 1 to be referred to is a system configuration diagram showing an intercom system of the present invention.

  As shown in FIG. 1, an interphone system according to a preferred embodiment of the present invention is a nurse call system 1 used in a hospital that accommodates a patient who is a nursing person, for example. A plurality of nurse call slaves 2 for calling a medical worker, and installed in each hospital room, for example, a plurality of hall lights 3 installed in a hallway near the entrance of the hospital room, and installed in a nurse station A nurse call master unit 4 for notifying a call from a patient via the corridor lamp 3 and establishing a call, and a controller 5 installed in a nurse station or a common part of a hospital as a repeater. Digital data using a communication protocol for the LAN that is carried by each medical worker, informing the patient of the call and establishing a call Therefore, a plurality of IP mobile phones 6 that transmit and receive voice signals, an address of the IP mobile phone 6 that establishes a call, an exchange 7 that exchanges digital voice signals by packet exchange, and a plurality that wirelessly controls the IP mobile phone 6 Wireless access point 8. The LAN communication protocol is a physical protocol such as Ethernet (registered trademark) or token ring.

  The nurse call cordless handset 2 is a doctor or nurse whose patient is a medical worker, for example, a nurse in the room in the nurse station or a nurse traveling around the hospital while carrying the IP mobile phone 6. Calls with different call types, such as normal nurse call, emergency call that requires emergency, and toilet assistance call, to input / output voices for establishing a call. is there.

  The corridor lamp 3 has a call indicator lamp 31 that blinks / lights up when a call is received from the nurse call cordless handset 2 by the patient. When the call type from the nurse call handset 2 is different, the call indicator lamp 31 can be flashed / lit in a different pattern for each call type.

  The nurse call master unit 4 can output that the call from the nurse call slave unit 2 is output in a different pattern for each call type and can display a different pattern for each call type. It is possible to establish a call with a patient in a hospital bed from which a medical worker in the room is a caller. The nurse call parent device 4 includes a display unit 41 and a control unit 42.

  The control unit 42 displays the telephone number of the IP mobile phone 6 that can be accessed via the wireless access point 8 to be described later or the name of the medical worker using the IP mobile phone on the display unit 41. It has a function. With this first control function, the nurse call master unit 4 can grasp the operation status of the IP mobile phone 6 and the status of the health care worker's IP mobile phone 6, so that the operation status of the IP mobile phone system and the health care worker's Work status can be confirmed. The control unit 42 has a second control function for displaying an alarm on the display unit 42 when the line usage rate of the LAN wiring connected to the wireless access point 8 exceeds a predetermined threshold. . With this second control function, the nurse call master unit 4 can grasp the line usage rate of the LAN wiring connected to the wireless access point 8, so it knows in advance the occurrence of an abnormal situation such as line congestion in the IP mobile phone system. be able to. The control unit 42 has a third control function for displaying an alarm on the display unit 42 when a terminal other than a predetermined terminal is connected to the wireless access point 8. This third control function allows the nurse call master unit 4 to know that devices other than the IP mobile phone, wireless camera, and measuring instrument for measuring the vital signs of the patient are connected, thus adversely affecting the IP mobile phone system. It is possible to eliminate devices that may be at risk. These control functions do not have to be provided in the control unit 42 and can be selected as appropriate.

  The controller 5 is for controlling the corridor lamp 3, the nurse call master 4 and the exchange 7, and has a function of specifying the IP mobile phone number corresponding to the room number and the bed number according to the type of signal. is doing.

  The IP mobile phone 6 is carried by, for example, a medical worker who is traveling in a hospital, displays that there is a call from the nurse call handset 2 in a different pattern for each call type, and outputs a ringing tone. The medical worker who has confirmed the information has an individual IP mobile phone number for establishing a call with the patient on the bed that is the caller.

  The exchange 7 has a function of controlling the line of the wireless access point 8. The wireless access point 8 has a wireless LAN function for wirelessly transmitting and receiving digital voice data of the IP mobile phone 6.

  The nurse call system 1 includes a plurality of wireless access points 8 having a wireless LAN function for transmitting and receiving wirelessly to and from a plurality of IP mobile phones 6 in this way. Since it is possible to perform wireless communication with a device having a wireless LAN function such as a device, wire saving can be realized. Here, a device having a wireless LAN function refers to a device that can transmit and receive signals using a LAN communication protocol. The vital sign refers to four pieces of biological information such as pulse, respiration, blood pressure, and body temperature.

  In such a nurse call system 1, a plurality of nurse call slaves 2 are connected to the hall light 3, and the hall light 3 to which the plurality of nurse call slaves 2 are connected is connected to the hall light connection line L1 by a bus. The corridor lamp connection line L1 is connected to the controller 5. In FIG. 1, only one corridor lamp 3 is connected. However, any number of corridor lamps 3 can be connected because of bus connection. In addition, although there are two slave unit transmission systems in which the corridor lamp 3 is bus-connected to the corridor lamp connection line L1, the number is not limited to the number of transmission systems, and is determined based on the number of floors, for example. . The nurse call base unit 4 is connected to the control unit 5 through the communication line L2, and the control unit 5 is connected to the switch 7 through the switch connection line L3. A plurality of wireless access points 8 are connected to the exchange 7 by a base station connection line L4, which is a first LAN wiring configured by a LAN cable and transmitting digital data according to a LAN communication protocol.

  A specific operation of the nurse call system 1 configured as described above will be described below.

  A patient in a hospital bed calls a health care worker who is in charge (in charge) of a health care worker in the nurse station or a health care worker traveling around the hospital while carrying the IP mobile phone 6 Therefore, when the call function of the nurse call slave unit 2 is made active, the corridor lamp 3 connected to the caller's nurse call slave unit 2 transmits a call signal S1 to the corridor lamp connection line L1. This calling signal S1 is transmitted to the controller 5 via the corridor lamp connection line L1. In the corridor lamp 3, the call indication signal 31 is transmitted to the corridor lamp connection line L1 and the call indicator lamp 31 is blinked / lighted to notify the medical staff in the corridor of the hospital room. it can.

  The controller 5 detects the call signal S1 from the corridor lamp 3, and transmits the call signal S3 including the room number, the call type included in the call signal S1 and the handset number, to the call part line L2. To do. This call signal S3 is transmitted to the nurse call parent device 4 through the call section line L2. The nurse call base unit 4 detects the call type, room number, and handset number included in the call signal S3 from the control unit 5, and outputs a ring tone having a different pattern for each call type. The nurse call parent device 4 has the caller's nurse call child device 2 installed in the hospital room based on the call type, room number, and child device number included in the call signal S3 from the controller 5. It is detected that there is a call from a patient in a hospital bed, and the display unit 41 displays the call in a different pattern for each call type.

  Further, the controller 5 detects the call type, the room number, and the slave number, respectively, specifies the IP mobile phone number corresponding to the room number and the bed number, and uses this IP mobile phone number and predetermined call display data. The terminal call control signal S2 including it is transmitted to the exchange connection line L3. The terminal call control signal S2 is transmitted to the wireless access point 8 via the exchange connection line L3 → the exchange 7 → the base station connection line L4. The wireless access point 8 converts the terminal call control signal S2 into a wireless LAN signal S4. To a plurality of IP mobile phones 6. The plurality of IP mobile phones 6 include the IP mobile phone number included in the terminal call control signal S2 from the controller 5 and the IP mobile phone number of the call display data and the individual IP mobile phone number of the own terminal. Only when they match, the call display data is judged to be valid and displayed only when they match, and a ringing tone having a different pattern for each call type is output.

  Here, when a medical worker in the room confirms a call from a patient in a hospital bed where the caller's nurse call cordless handset 2 is installed in the room, the nurse call master unit 4 responds. The call function of the nurse call master unit 4 and the call function of the caller's nurse call slave unit 2 are: a call line via the call unit line L2, the controller 5, the corridor lamp connection line L1, and the corridor lamp 3. The voice signal is transmitted / received through the call line, so that the nurse in the nurse station and the patient in the hospital bed where the nurse call cordless handset 4 is installed in the patient room. A call is established between them.

  On the other hand, when a medical worker in charge of traveling around the hospital while carrying the IP mobile phone 6 responds with the IP mobile phone 6, the call function of the IP mobile phone 6 and the nurse call child of the caller The call function that the machine 2 has is that a call line is formed through the wireless access point 8, the base station connection line L4, the exchange 7, the exchange connection line L3, the controller 5, the corridor lamp connection line L1, and the corridor lamp 3. By transmitting and receiving voice signals via the call line, the medical staff in charge (in charge) traveling around the hospital while carrying the IP mobile phone 6 and the nurse call cordless handset 2 of the caller in the hospital room A call is established with the patient in the hospital bed.

  When the IP mobile phone 6 is on standby, the nurse call parent device 4 can confirm the connection of the specific IP mobile phone 6. This is because the IP mobile phone 6 has an individual telephone number. When this connection confirmation function is activated in the nurse call parent device 4, the connection confirmation signal S4 output from the nurse call parent device 4 is wirelessly transmitted via the telephone line L2 → the control device 5 → the exchange connection line L3 → the exchange 7. The wireless access point 8 converts the connection confirmation signal S4 into a wireless LAN signal S4 and transmits it to the plurality of IP mobile phones 6. Upon receiving the connection confirmation signal S4 from the nurse call parent device 4, the plurality of IP mobile phones 6 transmit a response signal S5, and this response signal S5 is sent to the nurse call parent device 4 through a signal route opposite to the connection confirmation signal S4. Is transmitted. When the nurse call base unit 4 receives the response signal S5, the first control function of the control unit 42 displays the telephone number of the IP mobile phone 6 that has received the connection confirmation signal S4 on the display unit 41. I can confirm that. Further, if the name of the nurse who carries the IP mobile phone 6 is registered in the nurse call parent device 4 or the ordering system (not shown), the nurse call parent device 4 uses the first control function of the control unit 42 to display the display unit 41. The name of the medical worker carrying the IP mobile phone 6 can be displayed together with the phone number of the IP mobile phone 6. Further, depending on which wireless access point 8 has received the signal of the IP mobile phone 6, approximate position information of a medical worker carrying the IP mobile phone 6 is displayed on the display unit 41 of the nurse call parent device 4. You can also.

  In the nurse call system 1, since the wireless access point 8 has a wireless LAN function, many medical devices can be connected. For example, in order for a doctor to explain to a patient, a method of using a notebook personal computer wirelessly connected to the wireless access point 8 and explaining a moving image may be considered. However, if such use is performed simultaneously in a plurality of hospital rooms, there is a problem in that the line usage rate increases and the transmission of voice data and nurse call signals of the IP mobile phone 6 is hindered. For this reason, the nurse call master unit 4 constantly monitors, for example, the line usage rate of the base station connection line L4 by the second control function of the control unit 42, and the display unit 41 displays when the line usage rate exceeds a certain threshold. A warning about LAN line congestion is displayed, and a medical staff who sees this warning announces to the patient's room to use the broadcast function of the nurse call master unit 4 to suppress the use other than the nurse call to the IP mobile phone. By doing so, transmission of each signal for nurse call to the IP mobile phone can be stabilized. The line usage rate may be monitored at any position in the system such as the controller 5 and the wireless access point 8. Further, the warning may be displayed on the IP mobile phone 6.

  Further, in this nurse call system 1, since the wireless access point 8 is provided with a wireless LAN function, it is possible to connect a device that is not related to the nurse call system or medical device, for example, a patient's personal laptop computer without permission. There is. Therefore, the third control function of the control unit 42 of the nurse call parent device 4 is used. An IP address of a device that can be connected is registered in advance in a storage area (not shown) of the control unit 42 of the nurse call master device 4, and the nurse call master device 4 constantly monitors the IP address of transmission data, When an IP address that has not been registered in advance is found, an abnormal connection warning is displayed on the display unit 41, and a health care worker who sees the warning removes the device, thereby stabilizing the transmission of each signal of the nurse call. Can be made.

  In this nurse call system 1, the base station connection line L4 is connected to a plurality of access points 8, and therefore, transmission is performed using a LAN communication protocol. However, the exchange connection line L3 connects the exchange 7 and the controller 5. Therefore, either a LAN communication protocol or a dedicated protocol may be used. In this case, when the exchange connection line L3 is a dedicated protocol, the exchange 7 is provided with a protocol conversion function.

  In the nurse call system 1 described above, the wireless access point 7, the wireless camera, and a device having a wireless LAN function such as a measuring instrument for measuring a vital sign of a patient are wirelessly communicated. However, when the camera or the measuring instrument does not have a wireless LAN function, it is necessary to perform wired communication. Therefore, the wireless access point may have a hub function.

  FIG. 2 is a system configuration diagram showing a nurse call system 10 of the present invention having a wireless access point having a hub function.

  As shown in FIG. 2, the nurse call system 10 includes an electronic device such as a wireless access point 80 that measures a vital sign of a person to be nursed, a doctor's personal computer, and a wired camera 9B that images a room. Is provided with a hub 81 for connecting to the LAN wiring L4. The hub 81 is provided with a port so that a plurality of LAN cables can be connected. According to such a nurse call system 10, since the wireless access point 80 has a hub function, a wired LAN connection device such as a camera that does not have a wireless LAN function can be easily connected.

  Since the nurse call system 10 has the same configuration as the nurse call system 1 described above except for the wireless access point 80, the same elements are denoted by the same reference numerals, and descriptions of the configurations, operations, and operations thereof are omitted.

  A video line L5 for transmitting digital data according to a LAN communication protocol is connected between any one of the wireless access points 80 and the nurse call master unit 4, and a plurality of wireless access points 80 are connected to each other by a hub 81. Are connected in series via an access point line L6. Further, since the plurality of wireless access points 80 are connected in series via the hub 81 via the access point line L6, the exchange 7 needs to be connected to all the wireless access points 80 via the base station connection line L4. Instead, it is only necessary to connect to at least one base station connection line L4. Accordingly, the wireless camera 9A and the wired camera 9B can be installed in or near the hospital room, the wireless camera 9A is wirelessly connected using the wireless LAN function of the wireless access point 80, and the wired camera 9B is wirelessly accessed. The hub 81 of the point 80 is connected to the camera connection line L7. The wireless camera 9A has a wireless LAN function, and the wired camera 9B has a wired LAN function.

  When such a nurse call system 10 activates the wireless camera 9A or the wired camera 9B according to an instruction from any of the nurse call master unit 4, the controller 5, the corridor lamp 3, or the wireless access point 80, the wireless camera 9A or The wired camera 9B outputs a video signal S6 including the called patient in the imaging range. Since the imaged video signal S6 is transmitted to the IP mobile phone 6 that is called by the caller's nurse call handset 2 via the wireless access point 80 and is ringing, the IP mobile phone 6 A captured image is displayed on a display unit (not shown). Also, the imaged video signal S6 is transmitted to the nurse call master unit 4 that is called by the caller's nurse call slave unit 2 and is ringing via the wireless access point 80 and the video line L5. Therefore, the captured image is displayed on the display unit 41 of the nurse call parent device 4.

  In this nurse call system 10, the captured image is displayed on any of the display units of the IP mobile phone 6 and the nurse call parent device 4, but either one of the images may be displayed. When no video is displayed on the nurse call base unit 4, the video line L5 is not necessary. In this nurse call system 10, the devices for displaying the captured images are limited to the IP mobile phone 6 and the nurse call parent device 4, but in reality, LAN connection is possible and the images of the cameras 9 </ b> A and 9 </ b> B are displayed. Can be displayed on any device by branching the access point line L6 and the video line L5 with a hub.

  In addition, as long as all devices such as a camera connected to the wireless access point 80 and a measuring instrument that measures a patient's vital signs are connected by wire, the access point may be dedicated to wire connection.

  In the nurse call systems 1 and 10 described above, the wireless access points 8 and 80 are provided independently. However, the present invention is not limited to this, and the wireless access points 8 and 80 may be incorporated in the corridor lamp 3.

  FIG. 3 is a system configuration diagram showing a nurse call system 100 of the present invention having a corridor lamp with a built-in wireless access point.

  As shown in FIG. 3, the nurse call system 100 has a built-in wireless access point having functions similar to those of the corridor lamp 3 and the wireless access points 8 and 80 of the nurse call systems 1 and 10. Therefore, since the corridor lamp and the wireless access point can be integrated, the wireless access point can be eliminated from the corridor. Further, the controller 50 controls the corridor lamp 30 and the nurse call master unit 4 and establishes a call when a call including the IP mobile phone 6 as a destination is received from the nurse call master unit 4 or the nurse call slave unit 2. It has a function of specifying an IP mobile phone address, sending a call signal to the IP mobile phone, and exchanging digital voice signals by packet exchange. That is, the functions of the exchange 6 of the nurse call systems 1 and 10 and the function of the controller 5 are integrated. Therefore, since the controller 50 can perform line switching with the IP mobile phone via the wireless access point, no exchange is required.

  Since the nurse call master unit 4 of the nurse call system 100 has the same configuration as the nurse call systems 1 and 10 described above except for having a LAN function, the same reference numerals are assigned and description of the configuration is omitted.

  In such a nurse call system 100, the corridor lamp 30 and the nurse call master 4 transmit and receive voice signals and data signals by digital data using a communication protocol for LAN. Therefore, the communication line L2 that connects the nurse call master unit 4 and the controller 50 and the corridor lamp connection line L1 that is the second LAN wiring that connects the corridor lamp 30 and the controller 50 are both LAN cables. It consists of Therefore, all the signals transmitted to the base station connection line L4 and the access point line L6 by the nurse call systems 1 and 10 can be transmitted to the corridor lamp connection line L1. That is, the digital communication signal of the corridor lamp 30 and the digital audio signal of the IP mobile phone 6 are superimposed and transmitted on the corridor lamp connection line L1, which is the second LAN wiring connecting the corridor lamp 30 and the controller 50. ing. Therefore, the cordless handset trunk line that has been necessary in the past is not necessary, and further wire saving is possible.

  Further, the extension master unit 11 having a LAN function is connected to the corridor lamp connection line L1 which is the second LAN wiring. As described above, since the extension master unit 11 can be connected to the corridor lamp connection line L1 which is the second LAN wiring, the extension master unit main line which has been conventionally required is not required, and further line saving is possible.

  Such a nurse call system 100 has the same operation and operation as those of the nurse call systems 1 and 10 described above, and thus the description thereof will be omitted. However, the nurse call master unit 4, the controller 50, the corridor lamp 30, and the extension master unit 11 are respectively provided. Since they are connected by a LAN cable, a communication protocol for LAN is adopted for transmission / reception of signals of each device.

  In the nurse call system 100, the controller 50 connected to the corridor lamp 30 has a function of an exchange. However, the present invention is not limited to this, and the controller and the exchange are separately provided as in the nurse call systems 1 and 10. The corridor lamp 30 may be connected to the exchange.

  In the nurse call systems 1 and 10 described above, the controller 5 and the exchange 7 are provided separately. However, the present invention is not limited to this, and similarly to the controller 50 of the nurse call system 100, the corridor lamp 3 and the nurse call are provided. The base unit 4 is controlled, and when the call including the IP mobile phone 6 is received from the nurse call base unit 4 or the nurse call handset 2, the address of the IP mobile phone that establishes the call is specified, and the IP mobile phone is specified. You may make it have the function to exchange a digital voice signal by sending a call signal and exchanging packets. In this case, each of the plurality of wireless access points 8 is connected to a controller having the function of the exchange through a base station connection line L4.

  In the above-described embodiment of the present invention, it is limited to the IP mobile phone. However, the present invention is not limited to this, and any portable information terminal such as a PDA (Personal Digital Assistant) using a LAN communication protocol may be used. Any portable information terminal may be used. In the case of a PDA, a call cannot be made, but call notification and image display are possible.

  Further, in the above-described embodiment of the present invention, the nurse call system is used in a hospital. However, the present invention is not limited to this, and any facility that can accommodate a nursing person such as a geriatric insurance facility can be used. It can also be applied at facilities.

1 is a system configuration diagram showing the best mode of implementation of an intercom system of the present invention. It is a system configuration | structure figure which shows other best embodiment by the intercom system of this invention. It is a system configuration | structure figure which shows other best embodiment by the intercom system of this invention.

Explanation of symbols

1, 10, 100 ... Nurse call system (intercom system)
2 …… Nurse call handset 3 …… Corridor lamp 31 …… Call indicator 4 …… Nurse call master unit 41 …… Display unit 42 …… Control unit 5 …… Control unit 6 …… IP mobile phone 7 …… Exchange 8 …… Wireless access point 81 …… Hub 11 …… Additional master unit 30 …… Corridor lamp with wireless access point function 50 …… Control device with exchange function

Claims (9)

  When a child device such as a patient in a hospital bed installed in a room calls a health care worker such as a nurse, and when a call is made from the child device installed in the room by the person to be nursed A corridor lamp in which a call indicator lamp blinks / lights, and a master unit that is installed in a facility different from the room and informs a call from the caregiver via the corridor lamp and establishes a call; A controller for controlling the corridor lamp and the master unit, and a communication protocol for LAN carried by the medical staff, informing the call from the caregiver and establishing a call. An IP mobile phone that transmits and receives a voice signal using digital data and an address of the IP mobile phone that establishes the call are specified, and the digital voice signal is exchanged by packet exchange An intercom system comprising: an exchange; and a wireless access point connected to the exchange by a first LAN wiring and having a wireless LAN function for wirelessly transmitting and receiving digital voice data of the IP mobile phone .   When a child device such as a patient in a hospital bed installed in a room calls a health care worker such as a nurse, and when a call is made from the child device installed in the room by the person to be nursed A corridor lamp in which a call indicator lamp flashes / lights, and a master unit that is installed in a facility different from the room and informs a call from the caregiver via the corridor lamp and establishes a call; An IP mobile phone that is carried by a medical worker, notifies a call from the person to be cared for, and transmits and receives a voice signal by digital data using a communication protocol for LAN for establishing a call; and the corridor The address of the IP mobile phone that controls the lamp and the base unit, and establishes the call when there is a call from the base unit or the slave unit including the IP mobile phone as a destination A controller for sending a call signal to the IP mobile phone and exchanging the digital voice signal by packet switching; and a digital voice of the IP mobile phone connected to the controller by a first LAN wiring. An intercom system comprising a wireless access point having a wireless LAN function for transmitting and receiving data wirelessly.   The wireless access point is a hub for connecting electronic devices such as a measuring instrument for measuring vital signs of the person to be cared for, a personal computer of a doctor, and a camera for imaging the room to the first LAN wiring. The intercom system according to claim 1 or 2, further comprising:   The corridor lamp is connected to another corridor lamp or the controller through a second LAN wiring, instead of the wireless access point connected to the first LAN wiring, and includes the wireless access point. The intercom system according to any one of claims 1 to 3, characterized in that:   5. The intercom system according to claim 4, wherein an extension master unit is connected to the corridor lamp by the second LAN wiring.   The second LAN wiring connecting the corridor lamp and the controller transmits the digital communication signal of the corridor lamp and the digital audio signal of the IP mobile phone in a superimposed manner. The intercom system according to claim 4 or 5.   The master unit displays a display unit and a telephone number of the IP mobile phone accessible via the wireless access point or a name of the medical worker using the IP mobile phone on the display unit. The intercom system according to any one of claims 1 to 6, further comprising a control unit.   The control unit has a control function of displaying an alarm on the display unit when a line usage rate of a LAN wiring connected to the wireless access point exceeds a predetermined threshold value. The listed intercom system. The interphone system according to claim 8, wherein the control unit has a control function for displaying an alarm on the display unit when a terminal other than a predetermined terminal is connected to the wireless access point.

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