JP2000308165A - Remote control device and equipment to be controlled thereby - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote control device and equipment to be controlled thereby in which cable and radio remote control is performed and in which not only mechanical structure part but also an electric circuit part are shared and a communication format is made common. SOLUTION: This device is provided with a signal generating part 211 for generating a serial data signal having operating key input information, a transmission part buffer 22 connected to the output terminal of the signal generating part 211 and consisting a cable transmission part, a modulation part 23 for modulating a carrier wave with the serial data signal and a wave transmitting part 24 connected to the output terminal of the modulation part 23 and converting a modulated signal to a wave and transmitting it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device and a controlled device thereof, and more particularly, to a remote control for transmitting a serial data signal having operation key input information by selecting one of a wired transmission and a wireless transmission. The present invention relates to a control device and a controlled device thereof.

[0002]

2. Description of the Related Art A conventional example will be described with reference to FIG. Regardless of electrical equipment or mechanical equipment, the controlled equipment 1 is controlled by a remote control device 2 arranged at a position separated from its installation position.

Here, the remote control method includes a wired remote control method for connecting the controlled device 1 and the remote control device 2 via a wire cable 28 to transmit a control signal, and a remote control method for connecting the controlled device 1 and the remote control device 2 to each other. The transmission of control signals to and from the control device 2 is broadly classified into a wireless remote control method in which light, radio waves, ultrasonic waves, or other waves are used.

The wired remote control method uses an electric cable 28 for transmitting control signals, which hinders operation and is difficult to handle. However, the remote control device 2 is moved in the direction of the controlled device 1 during control operation. This is advantageous in that the control operation can be performed even in a state where the remote control device 2 is temporarily fixed at a position separated from the installation position of the controlled device 1. On the other hand, the wireless remote control method has good operability without using an intractable electric cable 28, but it is necessary to operate the remote control device 2 in the direction of the controlled device 1. And the remote control device 2 generally
Requires batteries as power source. Further, in a case where the controlled device 1 is installed on a small boat and is remotely controlled, if the remote control device 2 is a wireless remote control device, the remote control device 2 may fall into the sea and be lost. In such a case, the wired remote control device that is used by being connected to the electric cable 28 is preferable because it is not likely to be lost. Therefore, the controlled device 1 installed in the small boat is
Both a wired remote control device and a wireless remote control device are prepared according to the usage conditions of the user.

[0005] The remote control device 2 includes a housing, operation keys, and other mechanical structural parts that constitute the device.
Sharing is performed between the wired remote control device and the wireless remote control device.However, parts are not shared for the electric circuit portion, and different communication formats are used between the wired and wireless remote control devices. Has been adopted. Due to the different communication formats adopted between the wired remote control device and the wireless remote control device, both remote control devices are treated as completely different items, and the production and inventory of the remote control device are reduced. Leads to increased costs. Also, on the user side of the remote control device,
Since it is inconvenient to prepare only one of the wired and wireless remote control devices, two types of remote control devices must be prepared according to the usage conditions, and extra expenses are required. It will be accompanied.

[0006] Most home electric appliances today are controlled using a remote control device, and most of the remote control devices adopt a method of transmitting a control signal by modulating an infrared ray. here,
By connecting the remote control device and the device to be controlled via an optical fiber cable, a remote control device that can easily serve both as a wired remote control device and a wireless remote control device is realized. However, this increases the cost of the entire remote control device because both the optical fiber cable and the optical fiber connector are expensive. Since the optical fiber cable is structurally inflexible, its use significantly impairs the operability of the remote control device.

[0007] By combining both a wired remote control device using a flexible electric cable 28 and a wireless remote control device, a wired and wireless remote control device with good operability can be constructed. Incorporating two types of electric circuit parts, wired and wireless, in the remote control device naturally increases the price.

[0008]

SUMMARY OF THE INVENTION According to the present invention, parts are shared between a wired remote control device and a wireless remote control device not only for a housing, operation keys and other mechanical structural parts but also for an electric circuit part. Conduct,
An object of the present invention is to provide a remote control device and a device to be controlled that solve the above-mentioned problem by using a common communication format.

[0009]

Claim Means for Solving the Problems] 1: configuring a signal generating unit 21 ₁ for generating a serial data signal including an operation key input information, a wired transmission unit connected to the output terminal of the signal generator 21 ₁ A transmitting unit buffer 22, a modulating unit 23 for modulating a carrier with a serial data signal, and a modulating unit 23
And a wave transmitting section 24 connected to the output terminal of the first section for converting the modulated signal into a wave and transmitting the wave.

[0010] Then, claim 2 generates the serial data signal including an operation key input information, a signal generator modulating section ₂₁₂ for modulating the carrier wave by the serial data signal, connected to the output terminal of the signal generating modulation unit 21 ₂ a transmitter buffer 22 constituting the wired transmission unit Te constituted the remote control apparatus comprising a wave transmission unit 24 which is connected to the output terminal of the signal generating modulation unit 21 ₂ converts the modulated signal to the wave transmission .

Further, in the remote control device according to the present invention, the signal generation / modulation unit 21
A remote control device having a demodulation unit 29 interposed between the transmission buffer ₂ and the transmission unit buffer 22 was constructed. Further, in the fourth aspect, in the remote control device according to any one of the first to third aspects, the transmission unit buffer 2 is provided.
Reference numeral 2 denotes a remote control device having a connector for connecting an electric cable 28 including a signal cable 28 ₁ and a power cable 28 ₂ .

A fifth aspect of the present invention provides a remote control device according to the fourth aspect, wherein a transmission stop unit intervenes between the connector and the wave transmitting unit and sends an operation stop signal to the wave transmitting unit in response to power supply. The remote control device provided with was comprised. Further, in a sixth aspect of the present invention, in the remote control device according to the fifth aspect,
A remote control device including a battery connected to the connector and a charging unit 27 was configured.

[0013] Claim 7: Claims 1 to 3
In the remote control device described in any one of the above, a remote control device including the operation key illumination unit 26 is configured. In addition, in the remote control device according to any one of claims 8 to 7, the wave transmission unit 24 particularly constitutes a remote control device that is an infrared transmission unit.

[0014] Here, according to claim 9: receiver buffer 15 for inputting a modulated signal obtained by modulating the carrier wave by the serial data signal or the serial data signal transmitted via the remote control device 2 the signal cable 28 ₁ from
A wave receiving unit 14 for converting a wave signal transmitted from the remote control device 2 into a modulated signal; a demodulating unit 13 for demodulating an input modulated signal to generate a serial data signal; A controlled device comprising an instruction decoder unit 12 for converting a serial data signal input according to a given serial signal format into a digital code and decoding a key operation command based on this code, and an operation command execution unit 11 is constructed.

According to a tenth aspect of the present invention, there is provided a controlled device in which the output terminal of the receiving unit buffer 15 is directly connected to the input terminal of the instruction decoder unit 12. Further, in the controlled device according to the present invention, an output terminal of the receiving buffer 15 is connected to an input terminal of the demodulation unit 13.

In a twelfth aspect of the present invention, the power supply 16 is provided and the receiving unit buffer 15 is connected to the signal cable 2.
8 ₁ and has a connector for connecting the wire cable 28 of the power cable 28 _2, was constructed the controlled device connected to the power source 16 to the connector. Claim 13: Claim 9
In the controlled device according to any one of the twelfth to twelfth aspects, the wave receiving unit 14 constitutes a controlled device that is an infrared receiving unit.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Generally, serial data is used as signal information to be transmitted in a remote control. The controlled device executes a key operation command based on the received serial data. Basically, the operation command code of the remote control device is converted into a digital code, and this digital code is transmitted as a 1 or 0 signal at a certain communication speed in order from the lower bits.

Regarding the difference between the wired remote control method and the wireless remote control method, the wired remote control method transmits the serial data signal as it is via the electric wire cable, while the wireless method modulates the carrier by the serial data signal. Transmission. However, the communication format of the serial data signal itself is common and there is no problem.

According to the present invention, a common communication format optimal for transmission is used in both the wired remote control method and the wireless remote control method, the constituent circuit devices are shared, and the generated serial data signal is transmitted by wire. And a configuration in which a carrier is modulated by a serial data signal and transmitted wirelessly.

With the above configuration, it is possible to use one remote control device as a wired remote control device by connecting an electric wire cable to the remote control device, and remove the electric wire cable and connect it to the wireless remote control device. Can be used as a remote control device. Also, on the controlled device side, the output of the demodulation unit provided corresponding to the wireless remote control device can be commonly input to the command analysis unit to which the serial data signal transmitted through the wire is input and processed. it can.

[0021]

An embodiment of the present invention will be described with reference to FIG. FIG. 2 is a diagram illustrating a first embodiment of the remote control device. 21 ₁ converts a circuit for detecting whether the one of the operation keys is operated, a digital code are determined this advance, consisting of a circuit for converting a serial signal format the converted code are predetermined It is a signal generator.

The operation instruction by the operation keys are digitally encoded in the signal generating unit 21 _1, the code is further converted into a serial data signal of a serial signal format defined. Reference numeral 22 denotes a transmission unit buffer. Serial data signal that has been allowed to occur in the signal generating unit 21 _1, the transmission unit electric cable 2 via the buffer 22
8 to the controlled device 1 via the signal cable 28 ₁ . The transmission buffer 22 has a connector for connecting the electric cable 28. The electric wire cable 28 is a power cable 28 _{2 in} addition to the signal cable 28 _1.
It also has

Reference numeral 23 denotes a modulator. Modulation unit 23 modulates the carrier wave by the serial data signal generated in the signal generator 21 _1. If the wave used is infrared, the frequency of the carrier is around 40 kHz. Reference numeral 24 denotes a wave transmission unit that converts an electric signal into light, electromagnetic waves, ultrasonic waves, and other waves. In the case of this embodiment, an infrared light emitting diode is used as the wave transmitter 24. The wave transmitter 24 composed of an infrared light emitting diode converts the modulated signal generated in the modulator 23 into infrared light and sends it to the controlled device 1.

An illumination unit 26 illuminates operation keys of the remote control device 2. When operating the remote control device 2 in a dark place, the operation keys are
When it is illuminated, the operation keys can be easily handled. The illumination unit 26, the connector of the transmitter buffer 22, while connected to the power supply 16 of the control device to be described later via a power cable 28 ₂ are connected to the battery and the charging unit is indicated by 27. Thus, the illumination unit 26, in the case of wire transmission, to implement the illumination is powered by the power source 16 via a power cable 28 _2. Lighting unit 2
In the case of wireless transmission, illumination is performed using a built-in battery 27 as a power supply. The battery 27 is built as a secondary battery, by adopting a configuration in which floating charged by the power source 16 via a power cable 28 ₂ this to charge the battery 27 when connecting the wired transmission time and the wire cable 28 Can be maintained in a charged state.

Reference numeral 25 denotes a transmission stop unit interposed between the connector and the wave transmitting unit 24 to stop the transmission of the wave transmitting unit 24. When the wire cable 28 is connected to the remote control device 2 when performing the wired transmission, the transmission stop unit 2
5 via a signal cable 28 ₁ Power 1 of the controlled device
6 is supplied with power, and the transmission stop unit 25 generates an operation stop signal in response to the power supply, sends the signal to the wave transmission unit 24, and stops the operation of the wave transmission unit 24 unnecessary in wired transmission.

A first embodiment of the controlled device will be described with reference to FIG. Reference numeral 15 denotes a receiving unit buffer. The receiver buffer 15 constitutes a receiving unit for inputting a serial data signal transmitted via the signal cable 28 ₁ from the remote control device 2. 14 is a wave receiving unit,
Light, electromagnetic waves, ultrasonic waves, and other wave signals transmitted from the remote control device 2 are to be converted into modulated electric signals. In the embodiment shown in FIG.
Reference numeral 4 denotes an infrared receiver, which is constituted by an infrared photodiode and a high-frequency amplifier as conversion elements. An infrared modulated signal transmitted from the remote control device 2 is received and input, and is amplified to a required level in a demodulation unit 13 at the next stage.

The demodulation section 13 is a section which demodulates the modulated signal received and amplified by the wave receiving section 14 and returns it to a serial data signal. Reference numeral 12 denotes an instruction decoder unit including a circuit for converting a serial data signal input according to a predetermined serial signal format into a digital code, and a decoder circuit for decoding a key operation command based on the code.

Reference numeral 11 denotes an operation command execution unit. Serial data signal transmitted input via the signal cable 28 ₁ to the receiver buffer 15 is converted by the instruction decoder unit 12 into digital codes, key operation instruction is decoded on the basis of the digital code. The decoded key operation command is instructed to the operation command execution unit 11, and the operation of the controlled device 1 according to the key operation is executed.

The serial data signal wirelessly transmitted from the remote control device 2 and input to the wave receiving unit 14 and demodulated by the demodulation unit 13 is similarly converted into a digital code by the instruction decoder unit 12 and is converted based on the digital code. Then, the key operation command is decoded, and the decoded key operation command is instructed to the operation command execution unit 11, and the operation of the controlled device according to the key operation is executed.

A second embodiment of the remote control device will be described with reference to FIG. Members common to the first embodiment are denoted by common reference numerals. 21 ₂ and the circuit for detecting whether any of the operation of key is operated, a circuit for converting a serial signal format which is converted into predetermined by which digital codes are determined the converted code in advance, This is a signal generation and modulation unit including a modulation circuit that modulates a carrier with the generated serial data signal. The signal generator modulating unit 21 ₂ is commonly used in infrared remote control device of recent household appliances, can be obtained easily at low cost is one chip. The modulated signal generated by the signal generation / modulation unit 21 ₂ remains at a high frequency via the signal cable 28 ₁ and the controlled device 1
Is transmitted by wire. When carrying out short-range remote control using short signal cable 28 _1, or as in the case of using a carrier wave of lower frequency as a carrier wave,
When the signal attenuation is not a particular problem, without using the demodulation unit 29 as in a third embodiment described later,
The remote control device 2 can be configured simply.

In the case of the second embodiment shown in FIG.
Is used as the controlled device 1 in FIG. That is, the second
In the case of the embodiment, the receiving unit buffer 15
Is also a modulated signal, and is supplied to the demodulation unit 13 to be demodulated into a serial data signal. A third embodiment of the remote control device will be described with reference to FIG. In the third embodiment, members common to the first and second embodiments are given the same reference numerals.

[0032] 21 ₂ converts a circuit for detecting whether any of the operation of key is operated, a digital code are determined this advance, into a converted serial signal format codes are predetermined A signal generating and modulating unit comprising a circuit and a modulating circuit for modulating a carrier with the generated serial data signal. The carrier wave is about 40 kHz when using infrared rays as waves. 29 is a demodulation unit. The demodulation unit 29 includes a signal generation modulation unit 21 ₂
, A modulated signal obtained by modulating a carrier with a serial data signal is input and demodulated to generate a serial data signal. The serial data signal generated by the demodulator 29 is
5 is transmitted to the controlled device 1 of FIG. 5 via the transmission unit buffer 22 in the same manner as in the embodiment, and the controlled device 1 is controlled based on this.

The modulated signal generated by the signal generation modulating unit 21 ₂ as in the second embodiment, which was converted into the wave at the wave transmission unit 24 of the infrared transmission section the controlled device of FIG. 5 1 and the controlled device 1
Control.

[0034]

As described above, according to the present invention, between the wired remote control device and the wireless remote control device, not only the housing, operation keys and other mechanical structural parts but also the electric circuit part are provided. It is possible to provide an inexpensive remote control device and its controlled device, in which parts are shared, the communication format is common, the configuration is simplified, and the handling is simplified.

That is, a signal generation unit for generating a serial data signal having operation key input information is provided, and a transmission unit buffer which is connected to an output terminal of the signal generation unit and forms a wired transmission unit is provided. A modulation unit that modulates a carrier wave, and a wave transmission unit that is connected to an output end of the modulation unit and converts the modulated signal into a wave and transmits the wave. In addition, it is possible to provide an inexpensive remote control device and a controlled device thereof, in which components are shared for an electric circuit portion, a common communication format is used, a configuration is simplified, and handling is facilitated.

By using the signal generating section as a signal generating and modulating section in which the modulating section is integrated, a general-purpose one-chip integrated signal generating and modulating section can be easily obtained at low cost. And contribute to reducing the cost of the remote control device. Further, by interposing a demodulation unit between the signal generation modulation unit and the transmission unit buffer, the demodulated serial data signal is transmitted via the signal cable, so that signal attenuation can be reduced.

Further, by providing a transmission stop unit which is interposed between the connector and the wave transmission unit and sends an operation stop signal to the wave transmission unit in response to power supply, the connector is capable of connecting an electric cable comprising a signal cable and a power cable. In the connected wired transmission, the unnecessary operation of the wave transmission unit 24 can be automatically stopped. By providing the battery and the charging unit connected to the connector, the battery can be charged from the power supply of the controlled device at the time of wired transmission with the electric cable connected, and the trouble of maintaining the power supply in the remote control device can be eliminated. it can.

By illuminating the operation keys with the operation key illuminating section, key operations can be properly performed even in a dark place. Here, as a controlled device controlled by the remote control device, a receiving unit buffer for inputting a serial data signal transmitted from the remote control device via a signal cable or a modulated signal obtained by modulating a carrier wave with the serial data signal. Comprising a wave receiving unit for converting a wave signal transmitted from the remote control device into a modulated signal, comprising a demodulation unit for demodulating an input modulated signal and generating a serial data signal, A controlled device comprising an instruction decoder unit for converting a serial data signal input according to a predetermined serial signal format into a digital code and decoding a key operation command based on the code, and having an operation command execution unit. did.

The controlled device is provided with a power supply,
The receiving unit buffer has a connector for connecting an electric cable consisting of a signal cable and a power cable, and by connecting a power source to the connector, power can be easily supplied to the remote control device, and the wave transmitting unit Switching of cutting and illumination of the key operation unit can be easily performed.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a relationship between a controlled device and a remote control device.

FIG. 2 is a diagram illustrating a first embodiment of the remote control device.

FIG. 3 is a diagram illustrating a second embodiment of the remote control device.

FIG. 4 is a diagram illustrating a third embodiment of the remote control device.

FIG. 5 is a diagram illustrating a first embodiment of a controlled device.

FIG. 6 is a diagram illustrating a controlled device according to a second embodiment.

[Explanation of symbols]

REFERENCE SIGNS LIST 11 operation command execution unit 12 instruction decoder unit 13 demodulation unit 14 wave reception unit 15 reception unit buffer 16 power supply 2 remote control device 21 ₁ signal generation unit 21 ₂ signal generation modulation unit 22 transmission unit buffer 23 modulation unit 24 wave transmission unit 25 transmission Stop unit 26 Operation key illumination unit 27 Battery and charging unit 28 Electric wire cable 28 ₁ Signal cable 28 ₂ Power cable 29 Demodulation unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04Q 9/10 H04Q 9/10 E

Claims (13)

[Claims] 1. A signal generator for generating a serial data signal having operation key input information, a transmitter buffer connected to an output terminal of the signal generator to form a wired transmitter, and a carrier wave modulated by the serial data signal. A remote control device comprising: a modulation unit; and a wave transmission unit connected to an output terminal of the modulation unit, for converting a modulated signal into a wave and transmitting the wave. 2. A signal generation modulator for generating a serial data signal having operation key input information and modulating a carrier wave by the serial data signal, and a transmission connected to an output terminal of the signal generation modulator to constitute a wired transmission unit. A remote control device comprising: a unit buffer; and a wave transmission unit connected to an output terminal of the signal generation modulation unit to convert a modulated signal into a wave and transmit the wave. 3. The remote control device according to claim 2, wherein a demodulation unit is interposed between the signal generation modulation unit and the transmission unit buffer. 4. The remote control device according to claim 1, wherein the transmission unit buffer has a connector for connecting an electric cable including a signal cable and a power cable. Remote control device. 5. The remote control device according to claim 4, further comprising a transmission stop unit that is interposed between the connector and the wave transmission unit and sends an operation stop signal to the wave transmission unit in response to power supply. And a remote control device. 6. The remote control device according to claim 5, further comprising a battery connected to the connector and a charging unit. 7. The remote control device according to claim 1, further comprising an operation key illumination unit. 8. The remote control device according to claim 1, wherein the wave transmission unit is an infrared transmission unit. 9. A receiving unit buffer for inputting a serial data signal transmitted from a remote control device via a signal cable or a modulated signal obtained by modulating a carrier with the serial data signal, and a wave signal transmitted from the remote control device. A wave receiver that converts a modulated signal, a demodulator that demodulates an input modulated signal to generate a serial data signal, and converts an input serial data signal into a digital code according to a predetermined serial signal format. A controlled device comprising: an instruction decoder unit for decoding a key operation instruction based on the code; and an operation instruction execution unit. 10. The controlled device according to claim 9, wherein an output terminal of the receiving unit buffer is directly connected to an input terminal of the instruction decoder unit. 11. The controlled device according to claim 9, wherein an output terminal of the receiving unit buffer is connected to an input terminal of the demodulation unit. 12. The controlled device according to claim 9, further comprising a power supply, wherein the receiving buffer has a connector for connecting a wire cable comprising a signal cable and a power cable. And a power supply connected to the connector. 13. The controlled device according to claim 9, wherein the wave receiving unit is an infrared receiving unit.