JP2005101764A - Nurse call apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To specify easily a calling position of a wireless call button. <P>SOLUTION: A nurse call apparatus includes the wireless call button having a call switch T11 for starting the call, a transmitting ID code storage circuit T19 for storing previously an ID code, and a call high-frequency transmitting circuit T15 for adding the ID code to a call radio wave for calling when the call switch is pressed and transmitting the call radio wave. A receiver has a receiving ID code storage circuit J15 for storing previously the ID code; a called high frequency receiving circuit J12 for receiving the call radio wave; an electric field intensity detector circuit J13 for reading an electric field intensity of the call radio wave from a wireless call button received by the called high frequency receiving circuit; and a control circuit J14 for setting to switch from one to the other of the maximum receiving sensitivity and low receiving sensitivity in the called high frequency receiving circuit, and transmitting the electric field intensity data from the electric field intensity detector circuit via a passage light to specify the calling position of the wireless call button. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a nurse call device, and more particularly to a nurse call device provided with a wireless call button.

  Conventionally, as a nurse call device of this type, a call from a nurse call slave device is sent to a nurse call parent device via a corridor lamp and a controller, and a portable terminal via a corridor lamp, a controller, an exchange, and a radio base station. There is known a nurse call device for emitting / displaying sound (for example, see Patent Document 1).

  This nurse call device refers to an ordering system in which patient name data corresponding to the slave unit number information is stored in advance in the slave unit number information stored in the controller and transmitted to the portable terminal. An interface adapter is provided that takes in the patient name information and adds it to the handset number information.

  According to such a nurse call device, the call from the patient in the patient's room is confirmed by displaying on the portable terminal the child device number information corresponding to the caller's nurse call child device and the caller's patient name information. As a result, the convenience of visiting nurses is improved and a quick response is possible.

  However, in the nurse call device having such a configuration, since the plate slave unit and the grip button constituting the nurse call slave unit are connected by wire, the grip button is pulled when the bed is moved or by misuse of the patient. The grip button may be detached from the plate slave unit, or the cord connected to the grip button may be disconnected. In addition, there is a possibility that the plate slave is damaged by an impact during pulling.

  In order to eliminate such difficulties, the applicant can first make the call button wireless and communicate with the nurse call parent device wirelessly from any location in the hospital, thereby improving patient convenience. A nurse call device that can be improved is proposed (Japanese Patent Application No. 2003-74068).

  The nurse call device is provided with an extension adapter for a hallway lamp and a common part connected to the nurse call master unit, a plate slave unit connected to the hall light, and an ID code for calling the nurse call master unit. A wireless call button, the wireless call button having a call switch, a transmission ID code storage circuit for storing the ID code of the wireless call button in advance, and a call for transmitting a call radio wave for calling with an ID code added thereto A reception ID code storage circuit for storing an ID code in advance in at least one of the corridor lamp, the plate slave unit, and the extension adapter, and a called high-frequency reception circuit for receiving and demodulating a calling radio wave When the demodulated ID code matches the ID code stored in the received ID code storage circuit and matches, A call confirmation lamp for informing the state and a called high-frequency transmission circuit for transmitting a call confirmation radio wave with an ID code added thereto, and a wireless call button for receiving and demodulating the transmitted call confirmation radio wave A high-frequency receiving circuit and a call confirmation lamp that turns on / off to notify the calling state when the demodulated ID code matches the ID code stored in the transmission ID code storage circuit are matched.

  In the nurse call device having such a configuration, a call radio wave is transmitted from a wireless call button equipped with a transmission / reception function to a plate slave unit equipped with a transmission / reception function, and an incoming call confirmation radio wave is transmitted from the plate slave unit etc. to the wireless call button. As a result, the call confirmation lamp of the wireless call button blinks, so that the wireless call button side can recognize whether or not the wireless communication between the two devices has operated normally. Further, in this nurse call device, by comparing the electric field intensity data transmitted from each corridor lamp, the corridor lamp that transmits the maximum electric field intensity data can be specified as the calling position of the wireless call button.

  However, in the nurse call device having such a configuration, the corridor lamp that receives in the maximum reception sensitivity state, saturates the electric field strength data when receiving the electric field strength of a certain level or more, and transmits the maximum electric field strength data. As a result, there is a problem that the location where the wireless call button is called cannot be specified.

JP 2002-247218 A (paragraph numbers “0024” to “0030”, FIG. 1)

  The present invention has been made to solve the above-mentioned problems, and provides a nurse call device that can specify the position where the wireless call button is called even if the field strength data transmitted from each receiver is saturated. It is intended to provide.

  A nurse call device according to a first aspect of the present invention includes a plate slave unit to which a nurse call master unit is connected via a corridor lamp, a controller for controlling the nurse call master unit and the corridor lamp, and a nurse call. The wireless call button is provided with an ID code for calling the parent machine and transmits a call radio wave, and a receiver for receiving the call radio wave. The wireless call button includes a call switch for starting the call, and an ID code. A transmission ID code storage circuit for storing in advance, and a call high-frequency transmission circuit for adding an ID code to a call radio wave for calling when the call switch is pressed, and a receiver receives a call radio wave. A call high-frequency receiving circuit, an electric field strength detection circuit for reading the electric field strength of a calling radio wave from the wireless call button received by the called high-frequency receiving circuit, and a called high-frequency receiving circuit Switching from one of the maximum receiving sensitivity and the low receiving sensitivity to the other, and a control circuit for transmitting the electric field strength data from the electric field strength detecting circuit via the corridor lamp in order to specify the position where the wireless calling button is called. It is provided.

  Further, according to a second aspect of the present invention, in the nurse call device according to the first aspect, the receiver or the controller is provided with a reception ID code storage circuit for storing an ID code in advance, and the receiver has a reception function. When the received ID code is matched with the ID code stored in the received ID code storage circuit, a called high-frequency transmission circuit is provided for transmitting by adding the ID code to the call confirmation radio wave. A call high-frequency receiving circuit that receives a call confirmation radio wave, and a call that notifies the call state by turning on / off when the received ID code matches the ID code stored in the transmission ID code storage circuit. A confirmation lamp is provided.

  According to the nurse call device of the first aspect or the second aspect of the present invention, the field strength detection is performed by switching the called high frequency reception circuit of the receiver from one of the maximum reception sensitivity and the low reception sensitivity to the other. Since the field strength data in the maximum receiving sensitivity state and the field strength data in the low receiving sensitivity state can be acquired in the circuit, the field strength data in the maximum receiving sensitivity state becomes the same due to saturation or the like in two or more receivers. Even in this case, the position where the wireless call button is called can be easily specified by comparing the electric field strength data in the low reception sensitivity state.

  Embodiments to which the nurse call device of the present invention is applied will be described in detail below with reference to the drawings. Here, FIG. 1 is a system configuration diagram of the nurse call device of the present invention, and FIG. 2 is a block diagram of the nurse call device.

  In FIG. 1, the nurse call device of the present invention includes a plate slave P1 installed in the vicinity of a plurality of patient beds for each hospital room A, B,... And the ceiling of each patient room A, B,. A receiver J1 installed on the ceiling of the corridor lamp near the entrance of each hospital room A, B,..., A plurality of wireless call buttons T1 arranged corresponding to each of the mobile terminals P1, and each hospital room A plurality of corridor lamps R1 installed near the entrances of A, B,..., And a controller C1 and a nurse call master M1 installed in the nurse station NS. Here, the control device C1 is connected to each corridor lamp R1 via the corridor lamp main line L1, and to the nurse call master unit M1 via the master unit trunk line L2, and each corridor lamp R1 is connected to the slave unit trunk line L3. Is connected to the corresponding plate slave P1 through the receiver trunk line L4 and the corresponding receiver J1.

  Each wireless call button T1 has the same configuration, and as shown in FIG. 2, a call switch T11, a call detection circuit T12, a call confirmation light (hereinafter referred to as “call button call confirmation light”) T13, a control circuit ( Hereinafter referred to as “calling control circuit”) T14, calling high frequency transmission circuit T15, battery T16, power supply circuit T17, timer circuit T18, transmission ID code storage circuit T19, calling high frequency reception circuit T20, and duplexer (hereinafter referred to as “calling duplexer”). ) Each part of the antenna part T22 (hereinafter referred to as “calling antenna part”) T22 is provided. Here, the call control circuit T14 is connected to the call detection circuit T12, the call button call confirmation lamp T13, the call high-frequency transmission circuit T15, the timer circuit T18, the transmission ID code storage circuit T19, and the call high-frequency reception circuit T20. A call switch T11 is connected to T12, and a call duplexer T21 is connected to the call high-frequency transmission circuit T15 and the call high-frequency reception circuit T20. The battery T16 is connected to a power supply circuit T17, and power is supplied from the power supply circuit T17 to each circuit.

  Each receiver J1 has the same configuration as shown in FIG. 2. As shown in FIG. 2, the called high-frequency transmitting circuit J11, the called high-frequency receiving circuit J12, the electric field strength detecting circuit J13, the control circuit (hereinafter referred to as “receiver control circuit”). J14, a reception ID code storage circuit J15, and a duplexer (hereinafter referred to as “receiver duplexer”) J16, and an antenna unit (hereinafter referred to as “receiver antenna unit”) J17. Here, the receiver control circuit J14 is connected to the called high-frequency transmission circuit J11, the called high-frequency reception circuit J12, the electric field strength detection circuit J13, the reception ID code storage circuit J15, and the receiver trunk line L4, and the electric field strength detection circuit J13. Is connected to the called high-frequency receiving circuit J12, and the called high-frequency transmitting circuit J11 and the called high-frequency receiving circuit J12 are connected to the receiver duplexer J16.

  Each corridor lamp R1 has the same configuration, and as shown in FIG. 2, a control circuit (hereinafter referred to as “corridor lamp control circuit”) R11, a call confirmation lamp (hereinafter referred to as “corridor lamp call confirmation lamp”). R12, a first interface circuit (hereinafter referred to as “corridor lamp main line side IF circuit”) R13a and a second interface circuit (hereinafter referred to as “child machine main line side IF circuit”) R13b. Here, the corridor lamp control circuit R11 is connected to the corridor lamp call confirmation lamp R12, the corridor lamp main line side IF circuit R13a, the slave unit main line side IF circuit R13b, and the receiver main line L4, and the corridor lamp main line side IF circuit R13a includes The corridor lamp trunk line L1 is connected to the cordless handset trunk line side IF circuit R13b, and the cordless handset trunk line L3 is connected thereto.

  Next, the operation of the nurse call device of the present invention configured as described above will be described. In the nurse call device of the present invention, between the call function of the nurse call master unit M1 and the call function of the plate slave unit P1, the master unit trunk line L2, the control unit C1, the corridor lamp trunk line L1, the corridor lamp The point that the communication path is formed via R1 and the cordless handset L3 is the same as that of the conventional nurse call device, and thus detailed description thereof is omitted. Here, between the wireless call button T1 and the receiver J1 is omitted. The operation will be described focusing on the wireless communication operation.

  First, for example, a patient in the room A (hereinafter referred to as “first patient”) calls a wireless call button (hereinafter referred to as “first wireless call button”) T1 related to the first patient (hereinafter referred to as “first wireless call button”). When the T11 is pressed, a call signal is detected in the call detection circuit (hereinafter referred to as “first call detection circuit”) T12 of the first wireless call button T1, and the first call switch is called. The call detection signal is output from the detection circuit T12, and the call detection signal is sent to the call control circuit (hereinafter referred to as “first call control circuit”) T14 of the first wireless call button T1. At the same time, the ID code associated with the first wireless call button stored in advance in the transmission ID code storage circuit (hereinafter referred to as “first transmission ID code storage circuit”) T19 of the first wireless call button T1 ( (Hereinafter referred to as “first ID code”) is read, and the first ID code is read in the call high-frequency transmission circuit (hereinafter referred to as “first call high-frequency transmission circuit”) T15 of the first wireless call button T1. The added call radio wave (hereinafter referred to as “first call radio wave”) is transmitted from the call antenna portion (hereinafter referred to as “first call antenna portion”) T22 of the first wireless call button T1.

  Then, for example, a receiver antenna unit (hereinafter referred to as “first receiver antenna unit”) of the receiver (hereinafter referred to as “first receiver”) J1 in which the first calling radio wave is installed in the room A, for example. When received at J17, the first ID code is demodulated and demodulated at the called high-frequency receiving circuit (hereinafter referred to as "first called high-frequency receiving circuit") J12 of the first receiver J1. The ID code of the first receiver J1 and the first ID code stored in advance in the received ID code storage circuit (hereinafter referred to as “first received ID code storage circuit”) J15 of the first receiver J1 are collated. When the codes match, the call confirmation signal and the first incoming data are output from the receiver control circuit (hereinafter referred to as “first receiver control circuit”) J14 of the first receiver J1, and the former call confirmation signal. Via the receiver trunk L4 The corridor lamp corresponding to the first receiver J1 (hereinafter referred to as “first corridor lamp”) R1 corridor lamp control circuit (hereinafter referred to as “first corridor lamp control circuit”) R11, the latter first The incoming data is sent to a called high-frequency transmission circuit (hereinafter referred to as “first called high-frequency transmission circuit”) J11 of the first receiver J1. When the first call confirmation signal is detected by the first corridor lamp control circuit R11, the corridor lamp call confirmation lamp (hereinafter referred to as "first corridor lamp") of the first corridor lamp R1 is controlled by the first corridor lamp control circuit R11. And the second incoming data is output from the first corridor lamp control circuit R11, and this second incoming data is used as the corridor lamp main line of the first corridor lamp R1. Is sent to the corridor lamp main line L1 via the side IF circuit (hereinafter referred to as “first corridor lamp main line IF circuit”) R13a.

  Next, when the first incoming data is sent to the first called high-frequency transmission circuit J11, the first called high-frequency transmission circuit J11 adds a first ID code and receives an incoming confirmation radio wave (hereinafter referred to as “ "First incoming confirmation radio wave") is transmitted from the first receiver antenna unit J17. When the first incoming call confirmation radio wave is received by the first paging antenna unit T22, the paging high frequency receiving circuit (hereinafter referred to as “first paging high frequency receiving circuit”) T20 of the first wireless paging button T1. When the first ID code is demodulated, the demodulated first ID code and the first ID code stored in the first transmission ID code storage circuit T19 are collated, and the two ID codes match, Under the control of the first call control circuit T14, a call button call confirmation lamp (hereinafter referred to as “first call button call confirmation lamp”) T13 of the first wireless call button T1 is lit for a predetermined time. Thereby, it can be confirmed that the wireless communication between the first wireless call button T1 and the first receiver J1 is operating normally on the first wireless call button T1 side.

  On the other hand, when the second incoming data sent to the corridor lamp main line L1 is transmitted to the nurse call master unit M1 via the controller C1 and the master unit main line L2, the speaker (not shown) of the nurse call master unit M1 A ringing tone sounds and an incoming call is displayed on an incoming call display (not shown). Thereby, the call display / notification from the first patient is performed to the nurse in the nurse station NS.

  Here, when a response operation is performed by the nurse call master device M1, the first patient is connected to a speaker (not shown) of a plate slave device (hereinafter referred to as “first plate slave device”) P1 related to the first patient. A microphone (not shown) can be used to talk to a nurse in the nurse station NS. In the nurse call master device M1, when the call is terminated, the call between the two ends and returns to the standby state.

  Here, when the first wireless call button T1 does not receive the first incoming confirmation radio wave even after a predetermined time has elapsed, it is modulated by the first ID high frequency transmission circuit T15 with the first ID code. The call radio wave (hereinafter referred to as “second call radio wave”) is sent again, waits for the first incoming call confirmation radio wave again, and repeats this operation until the first incoming call radio wave is received. If the first incoming confirmation radio wave cannot be received even after repeating the above operation, the first call button call confirmation lamp T13 is flashed quickly.

  Next, a method for specifying the first wireless call button T1 that has transmitted the call signal in the controller C1 will be described.

  First, the called high-frequency receiving circuit J12 of each receiver J1 is set to the maximum receiving sensitivity under the control of the receiver control circuit J14.

  In such a state, when the first called high-frequency receiving circuit J12 set to the maximum receiving sensitivity receives the first calling radio wave, the electric field strength detection circuit (hereinafter referred to as the “first receiving circuit”) of the first receiver J1. The electric field strength in the maximum reception sensitivity state is read at J13 and sent to the first receiver control circuit J14 as the maximum electric field strength data. After that, the low receiving sensitivity is switched and set, the electric field strength in the low receiving sensitivity state is read by the first electric field strength detection circuit J13, and is sent to the first receiver control circuit J14 as low electric field strength data.

  When the maximum field strength data and the low field strength data are detected by the first receiver control circuit J14, the maximum field strength data containing the address of the first receiver J1 from the first receiver control circuit J14. And the low electric field strength data are output, and the maximum electric field strength data and the low electric field strength data are transmitted through the receiver main line L4, the first corridor light control circuit R11, and the first corridor light main line side IF circuit R13a. It is sent to the trunk line L1.

  As a result, the controller C1 compares the maximum electric field strength data related to the same ID code transmitted from each corridor lamp R1, thereby comparing the first corresponding to the receiver J1 that transmits larger maximum electric field strength data. The wireless call button T1 can be specified as the calling position. Here, when the field strength data in the maximum reception sensitivity state becomes the same due to saturation or the like in two or more receivers, larger low field strength data is transmitted by further comparing the low field strength data. The first wireless call button T1 corresponding to the receiver J1 can be specified as the calling position.

  In the above embodiment, the blinking of the corridor lamp call confirmation lamp by the call confirmation signal and the lighting of the call confirmation lamp by the incoming confirmation radio wave are performed before specifying the calling position (receiver position). You may make it perform after specifying the position (position of a receiver) called in the controller.

  In the preferred embodiment of the nurse call device according to the present invention, position detection by a plurality of receivers having one antenna is described. For example, three receivers are used in one receiver. The same effect can be obtained even if the diversity antenna is used.

The system block diagram of the nurse call apparatus of this invention. The block diagram of the nurse call apparatus of this invention.

Explanation of symbols

J1: Receiver J11: Called high frequency transmission circuit J12: Called high frequency reception circuit J13: Field strength detection circuit J14: Control circuit J15: Reception ID code storage circuit M1・ ・ ・ ・ ・ Nurse Call Master R1 ・ ・ ・ ・ ・ Corridor P1 …… Plate Slave T1… Wireless Call Button T11 ・ ・ ・ Call Switch T13 ・ ・ ・ Call Confirmation Light T15 ・..High frequency transmission circuit T19: Transmission ID code storage circuit T20: High frequency reception circuit for calling

Claims (2)

A plate slave unit (P1) to which a nurse call master unit (M1) is connected via a corridor lamp (R1), a controller (C1) for controlling the nurse call master unit and the corridor lamp, and the nurse A wireless paging button (T1) that is provided with an ID code for calling the call base unit and transmits a calling radio wave, and a receiver (J1) that receives the calling radio wave;
The wireless call button includes a call switch (T11) for starting the call, a transmission ID code storage circuit (T19) for storing the ID code in advance, and a call switch for the call when the call switch is pressed. A call high-frequency transmission circuit (T15) that transmits the call radio wave with the ID code added thereto,
The receiver includes a called high-frequency receiving circuit (J12) that receives the calling radio wave, and an electric field strength detection circuit (J13) that reads the electric field strength of the calling radio wave received from the wireless calling button received by the called high-frequency receiving circuit. The called high frequency receiving circuit is switched from one of the maximum receiving sensitivity and the low receiving sensitivity to the other, and the field strength data from the field strength detecting circuit is specified in order to specify the position where the wireless calling button is called A nurse call device comprising a control circuit (J14) for transmitting via a corridor lamp. The receiver or the controller is provided with a reception ID code storage circuit (J15) for storing the ID code in advance,
The receiver receives the ID code stored in the received ID code storage circuit and compares it with the ID code stored in the received ID code storage circuit, and adds the ID code to the call confirmation radio wave for transmission. J11)
The wireless paging button matches the paging high frequency receiving circuit (T20) that receives the transmitted paging confirmation radio wave, and the received ID code matches the ID code stored in the transmission ID code storage circuit. The nurse call device according to claim 1, further comprising a call confirmation lamp (T13) that is turned on and off to notify the call state.

Images