JP3185679B2 - Remote control receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control receiving apparatus which learns an optical signal from an unspecified remote control apparatus and issues a predetermined output when there is a learned optical signal.

[0002]

2. Description of the Related Art Remote control devices utilizing infrared rays for operation of televisions, stereos, and the like are widely used. This remote control device emits a specific light signal pulse from a light emitting diode or the like by pressing an operation button of a remote control transmitter, and receives light from a photodiode or the like of a remote control receiver provided on a television or a stereo or the like on the operated side. The light is received by the element, and a device such as a television or a stereo is operated according to the type of the light signal. On the other hand, in hospitals and the like, an electric bed in which the back part is raised, an electric bed in which the legs can be raised / lowered, or an electric bed in which the height can be raised / lowered, is operated by operating a push button switch. I can do it. There is also a push button switch for performing a nurse call so that the patient can operate it when necessary.

[0003]

However, since the above-mentioned electric bed, nurse call, telephone and the like are not provided with a remote control device, it is necessary to operate a predetermined push button switch or the like in a hospital or the like. Here, a remote control receiver is attached to an electric bed, a nurse call, or the like, and if a special-purpose remote control transmitter other than the television or stereo remote control device is prepared, the electric bed is operated and a nurse call is performed using the transmitter. Although it is possible, if the patient to be operated is, for example, a person with severe physical disabilities, the remote control device may not be operated or a button attached to the remote control device may not be selected and operated. Further, depending on the patient, there may be a case where the user wants to share the remote control device with another remote control device that he can operate. The present invention has been made in view of such circumstances, and even with a different remote control transmitter, it learns the optical signal to be output and drives, for example, an electric bed, makes a nurse call, or makes a phone call. It is an object of the present invention to provide a remote control receiving device capable of generating such outputs in a distinguished manner.

[0004]

According to the present invention, there is provided a remote control receiving apparatus according to the present invention, comprising: a light receiving sensor for receiving an optical signal from an external remote control transmitter; and a computer in which a signal from the light receiving sensor is input. A remote control receiving device having a control unit and an output relay connected to the control unit and serving as an input signal of an external device, wherein the control unit stores a signal pattern from the light receiving sensor. Means, and output means for driving the output relay when there is a light receiving signal of a signal pattern learned by the learning means, wherein there are a plurality of output relays corresponding to the plurality of output relays. With a switch,
The control unit includes switch confirmation means for confirming that the respective switches have been pressed for a predetermined time, and confirms that the respective switches have been pressed for a predetermined time, and the learning means switches the respective output relays. A signal pattern from the light receiving sensor to be driven is learned, and a plurality of devices connected to the output relay can be independently operated by the remote control transmitter.

Thus, an optical signal from an external remote control transmitter is received by the light receiving sensor, and the signal pattern is learned and stored. And, when the optical signal of the learned signal pattern is from an external remote control transmitter,
This is detected and the output relay is turned on. Further, there are a plurality of output relays and corresponding switches, and a signal from the light receiving sensor is learned in a state where it is confirmed that the switch has been pressed for a predetermined time. Therefore, when an optical signal of the learned signal pattern is received, the output relay corresponding to the switch is activated, so that a plurality of output relays can be selected and turned on according to the signal pattern from the remote control transmitter. . In the remote control receiver according to the present invention, the output relay is a contact relay, and the output is a momentary output, so that the output can be used to make an electric bed, a nurse call, and make a telephone call. Can be.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. 1 and 2 are explanatory views of the operation of the remote control receiving apparatus according to one embodiment of the present invention, FIG. 3 is a plan view with the same part cut away, FIG. 4 is a side view thereof, FIG. FIG. 6 is a block diagram of the electric circuit, and FIG. 7 is a flowchart of the same.

As shown in FIGS. 1 to 6, a remote control receiver 10 according to an embodiment of the present invention includes a case body 11 having an arc-shaped opening window 11a through which infrared rays pass, and A pair of infrared light receiving sensors 12 and 12a arranged in the window 11a with different directions, a control unit 13 arranged in the case body 11, and a case body 11
The first to fourth push button switches 14 to 17 protrudingly provided on the sides of the light emitting diodes 18 and 1
9 and first to fourth output terminals 20 to 23 provided on the back of the case main body 11. Hereinafter, these will be described in detail.

The case main body 11 is made of a relatively small plastic or metal case, and has a protruding window 11a having an arc shape in plan view on the front side. The projecting window 11a is made of plastic that allows infrared rays to pass easily but does not allow visible light to pass through, and has light receiving sensors 12, 12a including a photodiode or the like inside.
Are arranged with their directions changed by about 30 to 50 degrees. Thus, by changing the direction of the light receiving sensors 12 and 12a and arranging them in parallel, the original light incident angle of the light receiving sensors 12 and 12a can be expanded over a wider range.

The control unit 13 has a computer (minicomputer) inside. As shown in FIG. 6, this computer has a CPU 24 having a ROM therein and performing arithmetic processing, and an R connected to the CPU 24.
It has an AM 25, an EEPROM 26, and input / output interfaces 27 and 28. The input interface 27 is connected to the light receiving sensors 12, 1 through an OR circuit 27a.
2a is connected and the push button switch 14
To 17 and first to fourth contact operation mode changeover switches 29 to 32 are connected. The output interface 28 is connected to red and green light-emitting diodes 18 and 19 serving as indicator lights, output relays 20 a to 23 a for emitting contact outputs to the outside, and a buzzer 33. The input interface 27 and the output interface 28 can be housed in one package.
In addition, although 35 indicates an AC adapter constituting a power supply circuit, it may be a battery.

Since a program for controlling the entire remote control receiver 10 is described in a ROM attached to the CPU 24, this flow will be described with reference to FIG. First, when you start, first CP
Initial setting of hardware such as U24 and initial setting of the RAM 25 are performed (step S1). At first, it is determined whether any of the first to fourth push button switches (CH switches) 14 to 17 has been pressed for 3 seconds or more (step S).
2) When pressed, the red light emitting diode 18 as the learning lamp is turned on, and when the green light emitting diode 19 as the used lamp is turned on, the light is turned off (step S3). Thereafter, it is determined again whether any one of the first to fourth push button switches 14 to 17 has been pressed (step S4), and an optical signal from the external remote control transmitter 34 is received. In this case, since there is a disturbance, it is determined whether or not there are 32 or more infrared pulses from the external remote control transmitter 34 within a specific time (step S5). Is regarded as a predetermined light receiving signal, the buzzer 33 is sounded for 0.8 seconds (step S6), and the light emitting diode 19 as a used lamp is turned on, and the light emitting diode 18 as a learning lamp is turned off (step S7). The EEPROM 26 stores 32 pulse times of the received light signal and the first to first pulses in the process of step S4.
Which of the fourth push button switches 14 to 17 has been pressed is stored (step S8). By the above operation, the optical signal emitted from the external remote control transmitter 34 is stored. Since the remote control receiver 10 according to this embodiment includes the first to fourth push button switches 14 to 17, it is possible to internally store optical signals of four channels.

Next, in the process of step S2, the first
When the third push button switches 14 to 17 are not pressed, it is determined that data is written in the EEPROM 26 (step S9) and that the light receiving signal has 32 or more pulses within a predetermined time. After confirmation (step S10), the signal pattern of the received light signal and the EEPROM 2
6 (step S11),
If they match, the corresponding channel, i.e.
Turn on one of the output relays 20a to 23a corresponding to the fourth push button switches 14 to 17 (step S
12). Output terminals 20-2 of output relays 20a-23a
3, when the momentary output (about 1 second) is desired, the corresponding first to fourth contact operation mode changeover switches 29 to 32 are turned off, and the output relays 20a to 23a are turned off.
In order for the output terminals 20 to 23 to be turned on while pressing the push button switch of the external remote control transmitter 34, the corresponding first to fourth contact operation mode changeover switches 29 to 32 Turn on.

In the above description, steps S5 to S8
Constitutes the learning means described above, and steps S4 and S8 constitute the switch confirmation means.
11 and step S12 constitute output means. Thereby, as shown in FIG. 1, the electric bed 36 is connected to the first output terminal 20 and the nurse call 37 is connected to the second output terminal 21.
Can be operated from an external remote control transmitter 34 by connecting a telephone 38 to the third output terminal 22. If there is a remote control transmitter that has better operability for the user, any remote control can be used by resetting the settings again, and a remote control device with extremely high operability can be provided.

Although the above embodiment has four channels of output, the present invention can be applied to one to three or five or more channels. Further, in this embodiment, a signal having 32 pulses within a predetermined time is used as the light receiving signal. However, the number of pulses may be different or another pulse pattern may be used. The output of the remote control receiver is a contact output, but may be a non-contact output.

[0014]

As is apparent from the above description, the remote control receiving apparatus according to the first and second aspects of the present invention learns the optical signal from the external remote control transmitter once by the learning means and detects the optical signal. In this case, a specific output relay is operated by the output means by identifying the signal, so that even a general-purpose remote control transmitter other than the dedicated remote control transmitter can transmit a signal. Therefore, it is possible to select a remote control transmitter suitable for the operator.
Furthermore, since a plurality of output relays can learn and operate a remote control transmitter that emits different optical signals,
Multiple devices can be operated independently from a non-dedicated remote control transmitter. In the remote control receiver according to the second aspect, since the output relay is a contact relay and the output is a momentary output, various devices (for example,
It is suitable as an output to operate an electric bed, nurse call, telephone).

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the operation of a remote control receiver according to one embodiment of the present invention.

FIG. 2 is an explanatory diagram of the operation.

FIG. 3 is a cutaway plan view of the same part.

FIG. 4 is a side view of the same.

FIG. 5 is a rear view of the same.

FIG. 6 is a block diagram of the electric circuit.

FIG. 7 is a flowchart of the same.

[Explanation of symbols]

10: Remote control receiver, 11: Case body, 11a:
Projection window, 12: light receiving sensor, 12a: light receiving sensor, 13: control unit, 14: push button switch, 15:
Push button switch, 16: push button switch, 1
7: push button switch, 18: light emitting diode, 1
9: light emitting diode, 20: output terminal, 20a: output relay, 21: output terminal, 21a: output relay, 22: output terminal, 22a: output relay, 23: output terminal, 23
a: output relay, 24: CPU, 25: RAM, 26:
EEPROM / ROM, 27: input interface, 27
a: OR circuit, 28: output interface, 29: changeover switch, 30: changeover switch, 31: changeover switch, 32: changeover switch, 33: buzzer, 34:
Remote control transmitter, 35: AC adapter, 36: Electric bed, 37: Nurse call, 38: Telephone

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-58565 (JP, A) JP-A-1-220596 (JP, A) JP-A-6-62458 (JP, A) JP-A-7- 294332 (JP, A) JP-A-4-91491 (JP, U) JP-A-5-59989 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04Q 9/00-9 / 16

Claims (2)

(57) [Claims] 1. A light receiving sensor for receiving an optical signal from an external remote controller transmitter, a control unit having a signal therein as an input and having a computer therein, and a control unit connected to the control unit for controlling an external device. A remote control receiving device having an output relay serving as an input signal, wherein the control unit has a learning unit for storing a signal pattern from the light receiving sensor, and a light receiving signal of the signal pattern learned by the learning unit. Output means for driving the output relay in the case, the output relay includes a plurality of switches, and a switch corresponding to the plurality of output relays, and the control unit includes:
A switch confirming means for confirming that each of the switches has been pressed for a predetermined time; confirming that each of the switches has been pressed for a predetermined time, the learning means detects the light from the light receiving sensor which drives the respective output relays; A remote control receiving device that learns the signal pattern of the above and can independently operate a plurality of devices connected to the output relay by the remote controlling transmitter. 2. The remote control receiver according to claim 1, wherein said output relay is a contact relay, and the output is a momentary output.