JPH0342914Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a patient lighting/intercom device with a remote control function.

(Prior art) Figure 3 shows the patient lighting system already proposed by the applicant.
This shows the appearance of the intercom device, and 2
Reference numeral 3 is a wall unit fixed to the wall of the hospital room, and 3 is an arm rotatably attached to the wall unit 2 at one end and having a pillocide unit 4 movably attached to the other end. The pillocide unit 4 is provided with illumination means including a lamp LA ₁ and a sliding cover 44, and the lighting is turned on and off by a lighting flashing switch SW ₁ , and the sliding cover 44 is turned on and off as shown in FIG.
By manually sliding _{the lamp LA 1 between} the covered state and the exposed state as shown in
It is now possible to switch between reading light and treatment light. Further, a call switch SW ₂ , a speaker SP, and a microphone MIC allow calling and talking to a nurse call base unit (not shown) connected to the wall unit 2. Note that the LED is a call confirmation light. Further, 43 is a handle to be held when moving the pillowside unit 4 to an appropriate position, and 31 is a wiring cord for electrical wiring between the pillowside unit 4 and the wall unit 2.

FIG. 4 is a block diagram showing the circuit configuration of the patient illumination/intercom device shown in FIG. 3, and the same parts are given the same reference numerals. However, the nurse call base unit 1 has multiple wall units 2.
Each wall unit 2 is equipped with a call holding circuit 21 that holds the call until a response is made, and a call holding circuit 21 that issues an alarm when a disconnection of the connector or disconnection of the cord is detected. A dropout alarm circuit 22 is provided to generate a dropout alarm, and an emergency alarm circuit 23 is provided for a nurse to call other nurses or doctors when a patient is abnormal. They are connected via wires _l1 to _l4 in the arm 3. In addition, a step-down transformer _T1 for light bulbs is provided in the wall unit 2, and a low AC voltage of about 12V is supplied to the lamp _LA1 of the pillowside unit 4 via the wires _l5 and _l6 in the arm 3. It is becoming more and more common. This is to ensure safety in case a patient accidentally touches a power line, and is essential for this type of device.

FIG. 5 is a circuit configuration diagram showing FIG. 4 more specifically, and in the figure, 20 is a circuit section including a call holding circuit 21, a dropout alarm circuit 22, and an emergency alarm circuit 23 in the wall unit 2; 40 is a circuit section including a call holding circuit 41 and a speech amplification circuit 42 in the pillowside unit 4, CN ₁ is a connector connecting the wall unit 2 and the wires l ₁ to l ₆ in the arm 3, and SW ₃ is a The emergency switch, SW ₄ is a call switch with fall alarm, SW ₅ is a recovery switch, and LA ₂ is a hallway light.

Therefore, when making a report from the nurse call base unit 1 to the pillowside unit 4 side, the audio signal is supplied to the line l1 using the line _l3 in common, and the audio signal is supplied to the line _l1 , and the capacitor _C1
Sound is output from the speaker SP of the pillowside unit 4 via the impedance exchange transformer _T2 . On the other hand, a negative DC voltage of about -24V is applied to the line _L2 with reference to the normal line _L3 , and when the pillow side unit 4 calls the nurse call base unit 1, the call switch _SW2 is activated. When turned on, the thyristor SCR is triggered and turned on, and current flows through the wire l ₃ → thyristor SCR → diode
D ₄ , D ₃ , D ₂ → Flow to line l ₂ , call confirmation light LED
lights up, and the nurse call base unit 1 displays a call and generates a ring tone. This call operation is maintained by the operation of the call holding circuit by the thyristor SCR, and when the nurse call base unit 1 responds to the call, the conductor _l2 changes to a positive DC voltage of approximately +12V, the thyristor SCR is turned off, and the call confirmation light is turned off. The LED goes off, and power is then supplied to the speech amplification circuit made up of transistors Q 1 _and Q ₂ through the path of wire l ₂ → resistor R ₁ → diode D ₁ , and the patient's voice detected by the capacitor-type microphone MIC is transmitted. is superimposed on the line _l2 and sent to the nurse call base unit 1. Further, the wire _l4 is connected to the wire _l3 in the pillow side unit 4, and is guided into the wall unit ₂ via the arm ₃ and the connector _CN1 . The occurrence of wire breakage or the like can be detected by a fall alarm circuit within the wall unit 2. Further, a voltage is applied to the lamp LA ₁ through wires l ₅ and l ₆ provided separately from the signal wires l ₁ to l ₄ . Note that the lighting blinking switch SW ₁ is connected in series with the lamp LA ₁ , and voltage is always supplied even when the lamp LA ₁ is not in use.

(Problem that the invention aims to solve) By the way, there are lights, televisions, air conditioners, electric beds, etc. in the hospital room, and the operation of these is done by the patient himself, except for seriously ill patients. It is very cumbersome to walk up to the machine and operate it, so there is a strong desire to be able to operate it using a remote control or the like.

For this purpose, it is conceivable to install a separate remote control device, but this would complicate the surroundings of the bed in the hospital room and impede emergency treatment, and it would also prevent high voltage from being placed near the patient. The disadvantage is that the device is complicated and expensive due to the requirement that it not be left unattended.

It is also possible to integrate a wired remote control device into the patient lighting/intercom device described in the prior art section, but the number of wires in the arm must be at least six as described above. There was a problem that it could not be realized because the design made it difficult to run more wires than this.

(Means for Solving the Problems) The present invention has been proposed in view of the above points, and can be easily applied to the patient lighting/intercom device described in the prior art section, and furthermore, It is an object of the present invention to provide a patient illumination/intercom device with a remote control function, which has a simplified configuration and reduced cost by using the same configuration as a remote control.

In order to achieve the above object, the present invention is equipped with a lamp, a call switch, a speaker, and a microphone in a pillow side unit that is movably attached to the wall unit via an arm, and is used as a noise filter and voltage drop in the wall unit. A voltage obtained by stepping down the commercial power supply using a transformer is supplied to the lamp for illumination, and the call switch, speaker, and microphone enable calling and talking to a nurse call main unit connected to the wall unit. In the patient lighting/intercom device, a remote control operation unit is connected to the lamp wiring of the pillowside unit to superimpose modulated data on the lamp wiring, and a remote control control unit is connected to the lamp wiring of the wall unit. A remote control function characterized in that the unit is connected to receive and decode the signal appearing on the secondary side of the transformer, and the patient can control various equipment such as lighting, air conditioner, and television by operating the remote control operation section. The main focus is on patient lighting and intercom equipment.

(Example) Hereinafter, the present invention will be described in detail with reference to drawings showing examples.

Figure 1 shows the patient lighting with remote control function of this invention.
1 is a block configuration diagram showing one embodiment of an intercom device. In the figure, the configurations of the nurse call base unit 1, wall unit 2, arm 3, and pillowside unit 4 are the same as the conventional device shown in FIG. has been done. Remote control operation section 5
a selection switch 51 for instructing control of the device;
An encoder 52 that encodes the state of the selection switch 51, a P/S converter 53 that converts parallel data provided by the encoder 52 into serial data, and a P/S converter 53 that converts the serial data provided from the P/S converter 53 into a predetermined value. a modulation section 54 that modulates the carrier wave of , and a transmission tuning section that matches and superimposes the signal given from this modulation section 54 on the lines l ₅ and l ₆ of the lamp LA ₁ in the pillowside unit 4. 55, and a power supply unit 56 that generates a DC voltage from an AC voltage of about 12V supplied to the lamp _LA1 .

The remote control unit 6 also connects the wires l ₅ and l ₆ in the wall unit 2 (light bulb step-down transformer T ₁
a reception tuning unit 61 that is connected to the secondary side of
A frequency decoder 62 converts the frequency modulated signal obtained through the reception tuning section 61 into a level change, a comparator 63 converts the output of the frequency decoder 62 into a binary level, and the output of the comparator 63 is sequentially converted into a level change. A shift register 64 receives the data and converts it from serial data to parallel data.
and a decoder 6 which takes in and decodes the parallel data given from the shift register 64 at the timing of the signal given from the comparator 63.
5, a driver 66 that amplifies the output of this decoder 65, and a remote control relay 67 driven by this driver 66. This remote control relay 67 controls devices such as lighting 71, air conditioner 72, television 73, and electric bed 74 is now under control. In addition, 68 is a power transformer, 6
9 is a power supply section.

When the selection switch 51 is operated in the remote control operation unit 5, the operation content is modulated into a carrier wave as data and superimposed on the wires _l5 and _l6 , and is received and decoded by the remote control control unit 6, depending on the operation content. control (for example, turning on/off the air conditioner 72)
etc.) is performed. Note that the general carrier data transmission method has the disadvantage that the carrier signal affects other equipment through the commercial power line.

A drawback is that pulse-like noise from other devices using commercial power (especially noise from electromagnetic cookers, etc.) affects data transmission.

The disadvantage is that changes in power line impedance and impedance load affect operation.

In order to prevent these problems, it is necessary to install a filter at the end of the area where data transmission takes place, but in this invention, the step-down transformer _T1 for the light bulb inside the wall unit 2 functions as a filter. , there is no need to consider the above points.

Next, FIG. 2 is a circuit configuration diagram showing FIG. 1 more specifically, and the same parts are given the same reference numerals. Therefore, in the remote control operation section 5, 52
a is a priority encoder (C-MOS; 4532) that constitutes the encoder 52; 53a is a transmission IC (ED-9) that constitutes the P/S converter 53; 53b;
53c is a monostable multivibrator (C-
MOS; 4538), 56a is 3 that constitutes the power supply section 56
It is a terminal regulator.

Further, in the remote control control unit 6, 62
a is an IC (567) that constitutes the frequency decoder 62, 6
3a is a receiving IC (ED) that constitutes the comparator 63.
-5), 64a constitutes the shift register 64
IC (C-MOS; 4015), 65a is a decimal decoder (C-MOS; 4028) that constitutes the decoder 65,
66a is a transistor array that constitutes the driver 66; 67a, 67b, and 67c are VS units (AGC1213) that constitute the remote control relay ₆₇ ;
k ₅ is the relay coil, 69a, 69b are the power supply section 69
This is a three-terminal regulator that constitutes a.

(Effects of the invention) As described above, in the present invention, a lamp, a call switch,
The wall unit is equipped with a speaker and a microphone, and a voltage obtained by stepping down the commercial power supply using a noise filter/step-down transformer in the wall unit is supplied to the lamp for illumination. In a patient lighting/intercom device that enables calling and talking to a nurse call base unit connected to At the same time, a remote control control unit is connected to the lamp connection of the wall unit to receive and decode the signal appearing on the secondary side of the transformer and control various devices. It is very convenient to be able to control various devices while lying on the bed.

(b) Since the switches, lights, and intercom operated by the patient are integrated, operability is improved, and the area around the bed is tidy and does not interfere with emergency treatment.

(c) It can be easily configured by simply connecting the remote control operation section and the remote control control unit to the lamp wiring in the conventional patient lighting/intercom device.

(d) The lamp transformer installed inside the wall unit works as a filter to prevent the carrier signal modulated by data from leaking to the outside, and also to prevent the negative effects of external noise. There is no need to provide a filter.

(e) Since there is no need to increase the number of wires inside the arm, there is no need to improve the mechanism.

(F) The power source for the remote control operation unit can be obtained by rectifying and smoothing the low-voltage AC voltage for the lamp supplied to the pyroside unit, so there is no need to install a new power line.

There are other effects.

[Brief explanation of the drawing]

Figure 1 shows the patient lighting with remote control function of this invention.
FIG. 2 is a block diagram showing an example of an intercom device, FIG. 2 is a more specific configuration diagram of FIG. 1, FIG. 3 is an external view of a conventional patient lighting/intercom device, and FIG. A block configuration diagram showing the circuit configuration of the patient lighting/intercom device shown in Figure 3;
FIG. 5 is a configuration diagram showing FIG. 4 more specifically. DESCRIPTION OF SYMBOLS 1...Nurse call base unit, 2...Wall unit, 3...Arm, 4...Pillowside unit, 5...Remote control operation section, 6...Remote control control unit.

Claims (1)

[Scope of Claim for Utility Model Registration] A lamp inside a pillowside unit movably attached to a wall unit via an arm.
The lamp is equipped with a call switch, a speaker, and a microphone, and a voltage obtained by stepping down the commercial power supply using a noise filter/step-down transformer in the wall unit is supplied to the lamp for illumination. In a patient lighting/intercom device that enables calling and talking to a nurse call base unit connected to the wall unit, a remote control operation unit is connected to the lamp wiring of the pillow side unit to modulate the lamp wiring. At the same time, a remote control control unit is connected to the lamp wiring of the wall unit to receive and decode the signal appearing on the secondary side of the transformer, and the patient can control the lighting, air conditioner, etc. by operating the remote control unit. A patient lighting/intercom device with a remote control function, which is characterized by being able to control various devices such as a television.