JP2738481B2 - Nurse call device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nurse call device, and more particularly to a nurse call device capable of making a call with a nurse call slave unit using a cordless telephone.

[0002]

2. Description of the Related Art Conventionally, in a nurse call apparatus used in hospitals and the like, a nurse call master unit is provided at a nurse station, and a nurse call slave unit is provided in each hospital room. When the inpatient has a nurse, the nurse calls the nurse who is waiting in the nurse station by operating the nurse call slave unit in the hospital room.
The nurse can communicate with the patient by answering with the nurse call master unit, and if necessary, can go to a hospital room to perform treatment and the like.

[0003]

In this nurse call device, only the nurse call master unit and the remote master unit installed in the nurse call station can talk with the nurse call slave unit. Therefore, when the nurse is absent at the nurse station due to patrols in the hospital room or the like, there is a problem that the patient cannot contact the nurse.

[0004] The present invention has been made in view of the above problems, and has as its object to provide a nurse call device that can respond to a cordless telephone when a call is made from a nurse call slave unit.

[0005]

In order to achieve this object, a nurse call device according to the present invention comprises: a nurse call master device;
A plurality of nurse call slave units for making a call with the nurse call master unit, and conversion means for converting a call signal and a call signal from the nurse call slave unit output through the nurse call master unit into a telephone signal. A cordless telephone for communicating with each of the nurse call base units via the nurse call base unit and the conversion unit, wherein the conversion unit responds to the reception of the call signal and the call reception circuit for receiving the call signal. A dial signal generating circuit for outputting a dial signal, a polarity reversal detecting circuit for detecting polarity reversal when the cordless telephone responds to a call by the dial signal, and a 4-wire-2 connecting between the nurse call handset and the cordless telephone. The nurse call base unit includes a response detection circuit for detecting a response of the cordless telephone by detecting the polarity inversion of the polarity inversion detection circuit; A switch control circuit responsive detection signal of the detection circuit is input, a speech path corresponding to the calling handset under the control of the switch control circuit and a channel selection switch for controlling a closed state.

[0006]

When the nurse call base unit is called from the nurse call base unit, the converting means converts the calling signal and the call signal from the nurse call base unit output through the nurse call base unit into a telephone signal and outputs the signal. I do. The cordless telephone can communicate with each nurse call slave via the nurse call master and the conversion means.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a nurse call apparatus according to the present invention will be described below with reference to the drawings. In FIG. 1, n nurse call slave units 101 ₁ arranged in a hospital room are shown.
Numerals 101 to 101 _n are connected to a nurse call master device 102 provided at a nurse station. The terminals R1, RM, E, and R2 of the nurse call master device 102 are connected to the corresponding terminals R1, RM, E, and R2 of the adapter 103 as the conversion means. The terminals L1 and L2 of the adapter 103 are connected to a private branch exchange (PBX) 104. To the PBX 104, telephones 132 _{1 to} 132 _n are connected, and a cordless telephone base station 105 is connected. Corresponding to the cordless telephone base unit 105, there is provided a cordless telephone slave unit 106 for calling and communicating wirelessly.
Cordless telephone base unit 105 and cordless telephone handset 10
Reference numeral 6 denotes a normal outside line cordless telephone, which constitutes the cordless telephone of the present invention.

The nurse call slave units 101 _{1 to} 101 _n are provided with call switches 107 _{1 to} 107 _n , microphones 108 _{1 to} 108 _n , and speakers 109 _{1 to} 109 _n , respectively. In the nurse call master unit 102, the input section of the receiving circuit 111 is a call switch 107 _{1 to} 10
7 _n . Light emitting diodes (LEDs) 110 _{1 to} 110 _n corresponding to the slave units 101 _{1 to} 101 _n are connected between the power supply V _CC and the receiving circuit 111. An output section of the receiving circuit 111 is connected to a terminal R2 via an oscillation circuit 118 for generating a calling signal and an amplifier circuit 119. A speaker 120 is connected to an output section of the amplifier circuit 119. The tuning switches 112 _{1 to} 112 _n are connected to the microphones 108 _{1 to} 108 _n and 1 of the slave units 101 _{1 to} 101 _n.
09 _{1 to} 109 _n . The tuning switches 112 _{1 to} 112 _n are connected to a terminal R1 via an amplifier circuit 115 and a capacitor 116, and are also connected to a spring RM via an amplifier circuit 117. A response detection circuit 114 is connected between the power supply V _CC and the terminal R1. The response detection circuit 114 includes a switch control circuit 113
Is connected. Note that, in the nurse call master device 102, the ground line is omitted for convenience of description, and only the ground terminal E is shown.

On the other hand, in the adapter 103, a terminal R1 connected to the terminal R1 of the nurse call master device 102 is connected to a 4-wire to 2-wire conversion circuit 124 via a capacitor 121 and a transformer 122. 4-wire to 2-wire conversion circuit 12
4 is connected to terminals L1 and L2. The transformer 123 connected between the terminal RM and the terminal E is a 4-wire to 2-wire conversion circuit 124.
It is connected to the. A resistor 125 is connected between the terminal R1 and the terminal E.
The photocoupler 126 is connected via the. Also,
The photocoupler 126 is connected to a terminal via a polarity inversion circuit 127.
Connected to L1 and L2. The terminal R2 is connected to terminals L1 and L2 via a call receiving circuit 128 constituted by a call signal detecting circuit 129 and a photocoupler 130, and a dial signal generating circuit 131.

[0010] In the nurse call system constructed in this manner, a call switch 1 nurse call handset 101 ₁
When 07 ₁ is pressed, the receiving circuit 111 of the nurse call master device 102 responds to this by pressing the nurse call slave device 1.
The LED 110 ₁ corresponding to 01 ₁ is turned on. at the same time,
The receiving circuit 111 outputs a control signal to the oscillation circuit 118. The oscillation circuit 118 starts oscillating in response to the control signal and outputs a calling signal. The call signal is amplified by the amplifier circuit 119 and then output to the speaker 120. As a result, a ringing tone sounds from the speaker 120.

On the other hand, the calling signal is output from terminal R2 to terminal R2 of adapter 103. Ring signal detection circuit 12
Reference numeral 9 detects the call signal and drives the photocoupler 130 to a photocoupler ON state. When the photocoupler 130 is turned on, the dial signal generating circuit 131 responds to this by turning on the cordless telephone base station 10 set in advance.
The dial signal corresponding to the number 5 is output. The dial signal from the dial signal generating circuit 131 is supplied to terminals L1 and L2.
Is output to the PBX 104, and the cordless telephone base station 105 is called. Cordless parent machine 1 in response
05 calls the cordless telephone handset 106.

When cordless telephone handset 106 answers the call, PBX 10
4 detects this and inverts the polarities of the terminals L1 and L2. The polarity inversion detection circuit 127 detects the inversion of the polarity and drives the photocoupler 126 to the ON state. Photo coupler 12
6 is turned on, a negative potential is applied to the adapter 103.
Is supplied to the response detection circuit 114 through the terminal R1 of the nurse call telephone master terminal 102 and the terminal R1 of the nurse call telephone master unit 102. Response detection circuit 1
The switch control circuit 1 detects the negative potential.
13 outputs a response detection signal. Switch control circuit 11
3 in response to said response detection signal, the channel selection switches 112 ₁ corresponding to the calling handset to control in a closed state. As a result, the microphone 108 ₁ and the speaker 109 of the slave unit 101 _1
1 is an amplifier circuit 116, ₁
17 is connected. Further, the terminals R1 and RM of the nurse call master device 102, the terminals R1 and RM of the adapter 103, the transformer 12
2, 123, 4-wire to 2-wire conversion circuit 124, PBX 104
And a cordless telephone base unit 106 via the cordless telephone base unit 105. Thus, handset 101 ₁ and the cordless phone extension master station 106, it is possible to call.

After the end of the call, when the cordless telephone handset 106 goes off-hook, the polarities of the terminals L1 and L2 are reversed to the original state. The polarity inversion detection circuit 127 detects the polarity inversion and outputs a signal indicating the end of the call to the response detection circuit 114. The response detection circuit 114 outputs a call end signal indicating the end of the call to the switch control circuit 113 in response to the signal from the polarity inversion detection circuit 127. Switch control circuit 11
Reference numeral 3 denotes a channel selection switch 112 in response to the call end signal.
₁ is opened, and a series of operations is completed.

Calling and talking between another nurse call slave and the cordless telephone slave 106 are performed in the same manner as described above. When making a call to an outside line from the cordless telephone handset 106 and the telephones 132 _{1 to} 132 _n , respectively, the cordless telephone handset 106 and the telephone 132 ₁
The outside line number is dialed by 132 _n through 132 _n , and a call is made via the PBX 104. Further, when there is an incoming call from the outside line to the cordless telephone handset 106 and the telephones 132 _{1 to} 132 _n , each of them makes a call by going off-hook.

As described above, according to the present embodiment, the adapter for converting the calling signal and the calling signal from the nurse call slave units 101 _{1 to} 101 _n output through the nurse call master unit 102 into the telephone signal. 103, and cordless telephones 105 and 106 for making a call between each of the nurse call slave units 101 _{1 to} 101 _n via the nurse call master unit 102 and the adapter 103.

Therefore, the cordless telephones 105, 1
06, it is possible to communicate with the nurse call slave units 101 _{1 to} 101 _n.
By carrying the 06, it is possible to respond quickly to a call from a patient or the like. Further, only connecting simply converting means without modifying the existing nurse call master unit 102, a cordless telephone handset when there is a call from the nurse call slave unit 101 ₁ to 101 _n to the nurse call master unit 102 Answering and talking can be performed using this.

The cordless telephones 105, 106
Is connected to an outside line via the PBX 104, so it is possible to make a call with the outside line, so that it is possible to manage outside line calls even during patrols and urgently need to call an outside line. Even in this case, it is possible to make an outside line immediately. .

[0018]

As is apparent from the above description, according to the nurse call apparatus of the present invention, it is possible to talk with a nurse call slave unit using a cordless telephone, so that a nurse or the like carries the cordless telephone. This makes it possible to respond quickly to a call from a patient or the like. Also, by simply connecting the conversion means without modifying the existing nurse call base unit, it is possible to answer and talk using a cordless telephone when a nurse call base unit calls the nurse call base unit. . Furthermore, if a cordless telephone is connected to an outside line via a switch, it is possible to make a call to the outside line, so it is possible to manage outside line calls even during patrols, and it is necessary to urgently call an outside line. If it does, you can immediately make an outside line call.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a nurse call device according to the present invention.

[Explanation of symbols]

101 _{1 to} 101 _n: Nurse call slave unit 102: Nurse call master unit 103: Adapter as conversion means 105: Cordless telephone base unit constituting a cordless telephone 106: Cordless telephone unit Cordless telephone handset 112 _{1 to} 112 _n ... Tuning switch 113 ... Switch control circuit 114 ... Response detection circuit 124 ... 4-wire to 2-wire conversion circuit 127 ... Polarity inversion detection circuit 128 ... Call receiving circuit 131 ... Dial signal generation circuit

Claims (1)

(57) [Claims] 1. A nurse call master unit (102), a plurality of nurse call slave units (101 _{1 to} 101 _n ) communicating with the nurse call master unit, and an output via the nurse call master unit. Conversion means (1) for converting a calling signal and a call signal from the nurse call slave unit to a telephone signal.
03), and a cordless telephone (105, 106) for making a call between the nurse call base unit and each of the nurse call slave units via the conversion unit. The conversion unit receives the call signal. A call receiving circuit (128), a dial signal generating circuit (131) for outputting a dial signal in response to the reception of the call signal, and detecting a polarity inversion when the cordless telephone answers a call by the dial signal. Polarity inversion detection circuit (1
27), and a 4-wire to 2-wire conversion circuit (124) for connecting between the nurse call slave unit and the cordless telephone, wherein the nurse call base unit detects the polarity inversion of the polarity inversion detection circuit. A response detection circuit (114) for detecting a response of the cordless telephone, a switch control circuit (113) to which a response detection signal of the response detection circuit is input, and a telephone call corresponding to a slave called by the control of the switch control circuit. A nurse call device comprising: a channel selection switch (112 _{1 to} 112 _n ) for controlling a road to a closed state.