KR100237047B1 - Apparatus for remote controlling vacuum cleaner - Google Patents

Abstract

The present invention relates to a remote control apparatus for a vacuum cleaner, and the present invention relates to a DTMF signal receiving unit of the cleaning main body which is converted into a DTMF signal through a DTMF signal transmitting unit and then sent on a carrier wave. The signal transmitted from the DTMF signal transmitter is received, demodulated into the original DTMF signal, and then converted into the original key signal and input to the controller. The operation of the cleaning main body is controlled by the control of the controller corresponding to the input key signal. If the communication cable is not wired to the hose connecting the handle and the main body, the manufacturing process of the hose is simplified and the weight of the hose can be reduced.

Description

Remote control device of vacuum cleaner

The present invention relates to a vacuum cleaner, and more particularly, to a remote control apparatus for a vacuum cleaner that enables remote control of the operation of the cleaning basic body through wireless communication in a key input unit on the handle side.

In general, as shown in FIG. 1, the vacuum cleaner includes a suction unit 10 which sucks dust or foreign matter by the suction force of air, and dust which is sucked by the suction unit 10. It consists of a communication portion 20 to be smoothly transferred to the dust collecting chamber built in 30, and the main body 30 to collect the dust moved by the communication portion 20.

Here, the suction unit 10 is composed of two first transfer member 11 provided on both sides, and a connecting tube 12 formed integrally with the rear upper end.

In addition, the communicating portion 20 is a first extension tube 21 and the second extension tube 22 of plastic material coupled to communicate with the hollow portion of the connecting tube 12 and the first and second extension tube 21 ( 22 is coupled to the handle 23 and coupled to communicate with the handle 23, as well as the hose 24 is made of a natural bending.

Here, the handle 23 is provided with a key input unit 40 which includes a button for controlling the on / off control of the vacuum cleaner and the step of adjusting the suction force of the air and converts the button operation into a corresponding key signal. The hose 24 is provided with a communication cable, not shown, to apply the key signal output from the key input unit 40 to the main body 30 described below.

In addition, the main body 30 has a hose connection port 31 to which the end of the hose 24 is connected, a dust display unit 33 to display the amount of dust collected, and two second transfer wheels installed at both sides ( 34), the carrying handle 35 which can be easily carried by the operator for the movement of the work place, and the power plug 36 which supplies the power are provided.

Here, an impeller (not shown) is provided inside the main body 30 to generate suction force of air by rotation.

However, as described above, since the communication cable is built in the hose 24 in order to control the operation of the cleaner body 30 through the key input unit 40 of the handle 23, the hose ( 24) the manufacturing process is complicated and the weight of the hose 24 is heavy, there was a problem inconvenient use.

Accordingly, the present invention has been made to solve the problems described above, by remotely controlling the cleaner body from the key input unit on the handle side by wireless communication using DTMF signal, the installation of the communication cable is unnecessary, the hose manufacturing process It is an object of the present invention to provide a remote control device for a vacuum cleaner that can simplify the pressure and reduce the weight of the hose.

The remote control apparatus of the vacuum cleaner according to the present invention for achieving the above object, generates a suction force of the air by driving the motor according to the control signal, and using this suction force to collect foreign substances such as dust in the dust collecting chamber And a key input unit configured to control on / off control of the vacuum cleaner and a suction force of air, and a key input unit for outputting a corresponding key signal as each button is operated, and outputted from the key input unit. A DTMF signal transmitter for converting a DTMF signal corresponding to a key signal into a carrier wave and transmitting the DTMF signal, and a DTMF signal received from the DTMF signal transmitter, demodulated into a DTMF signal, and then converted into an original key signal. The on / off of the vacuum cleaner and the suction force of the air are controlled according to the key signal converted through the signal receiver and the DTMF signal receiver. Characterized in that the control unit for generating a control signal for.

1 is a schematic structural diagram of a conventional vacuum cleaner;

2 is a schematic structural diagram of a vacuum cleaner to which the present invention is applied;

3 is a detailed view of a key input unit shown in FIG. 2;

Figure 4 is a schematic block diagram of a remote control device for a vacuum cleaner according to a preferred embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

400: key input unit 500: DTMF signal transmitter

600: DTMF signal receiving unit 700: control unit

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic structural view of a vacuum cleaner to which the present invention is applied, and the vacuum cleaner to which the present invention is applied is provided with a suction part 100 and a suction part 100 to suck dust or foreign matter by suction force of air. The communication unit 200 is configured to smoothly transport the dust sucked by the dust collecting chamber built into the main body 300, and the main body 300 to collect the dust moved by the communication unit 200. .

Here, the communication unit 200 is an extension pipe 210 and the handle 220 is coupled to the extension pipe 210, and the hose 230 is coupled to communicate with the handle 220, as well as naturally bent. The handle 220 includes a button for controlling the on / off control of the vacuum cleaner and the suction force of the air in steps as shown in FIG. 3, and converts the button operation into a corresponding key signal. The key input unit 400 and the DTMF signal transmitter 500 to be described later are provided.

In addition, an impeller (not shown) is provided inside the main body 300 to generate suction force of air by rotation, and a DTMF signal receiving unit 600 to be described later is installed at an outer side thereof.

4 is a schematic block diagram of a remote control device of a vacuum cleaner according to a preferred embodiment of the present invention. The remote control device of the present invention includes the key input unit 400, the DTMF signal transmitter 500, and the DTMF. The signal receiver 600, the controller 700, the motor driver 800, and the motor 810 are configured.

In FIG. 4, the DTMF signal generator 500 includes a DTMF signal generator 510, a transmitter oscillator 520, a modulator 530, a transmitter 540, and a transmitter antenna 550. The DTMF signal generator 510 outputs a DTMF signal (Dual Tone Multi-Frequency Pulsing) corresponding to the input key signal when the key signal is input from the key input unit 400, and the transmitting oscillator 520 is wireless. It is to oscillate the carrier of a frequency suitable for communication, the modulator 530 is to load the DTMF signal output from the signal generator 510 to the carrier oscillated by the transmitting oscillator 520, the transmitter 540 ) Amplifies the DTMF signal modulated by the modulator 530 to transmit through the transmitting antenna 550.

The DTMF receiver 600 includes a reception antenna 610, a reception unit 620, a reception oscillator 630, a demodulator 640, and a DTMF signal processor 650, and the reception unit 620 is a transmitter. It is to amplify the signal output from the 500 received through the receiving antenna 610, that is, the DTMF signal carried on the carrier wave, the receiving oscillator 630 oscillates the same frequency as the carrier of the transmitting oscillator 520 The demodulator 640 is configured to extract the original DTMF signal from the signal amplified by the receiver 620 according to the frequency oscillated by the receiving oscillator 630, and the DTMF signal processor 650 is a demodulator. The DTMF signal extracted at 640 is signal processed, converted into a corresponding key signal, and applied to the control unit 700.

In addition, the control unit 700 is to output a control signal for adjusting the on / off and rotational speed of the motor 810 in accordance with the key signal applied from the signal processing unit 650 of the DTMF signal receiving unit 600, the motor The driver 800 controls the on / off and rotation speed of the motor 810 by adjusting the input power of the motor 810 according to a control signal applied from the controller 800, and the motor 810 is a motor driver. It is driven by the power applied from the 800 is to rotate the impeller.

An operation example of the present invention configured as described above will be described in detail with reference to FIGS. 2 to 4.

When the power is supplied from a predetermined power supply source (for example, a battery) to the DTMF signal transmitter 500 installed in the handle 220 in the initial state, the oscillator 520 for transmitting the DTMF signal transmitter 500 is wireless. Oscillating unit 630 for oscillating a carrier of a frequency suitable for communication and connecting the power plug (see 36 in FIG. 1) to the power outlet shown in the drawing, power is supplied to the main body 300 while the DTMF signal receiving unit 600 is received. Oscillates at the same frequency as the carrier of the transmitting oscillator 520.

At this time, when the user operates the suction force control button (for example, strongest, strong, medium, weak, etc.) of the key input unit 400 installed in the handle 220, a key signal corresponding to the button operation from the key input unit 400 The signal generator 510 is applied to the DTMF signal transmitter 500.

Accordingly, a DTMF signal corresponding to the key signal input from the key input unit 400 is generated from the signal generator 510 in the DTMF signal transmitter 500 and applied to the modulator 530. The DTMF signal input from the transmitter 500 is loaded on the carrier wave oscillated by the transmitter oscillator 520 and applied to the transmitter 540.

Then, the DTMF signal modulated by the modulator 530 through the transmitter 540 is amplified at a predetermined amplification ratio suitable for wireless communication, and is transmitted to the DTMF signal receiver 600 of the main body 300 through the transmitter antenna 550. Is sent.

In this case, the signal transmitted from the transmitting antenna 550 of the DTMF signal transmitting unit 500 is received by the receiving antenna 610 of the DTMF signal receiving unit 600, and the signal received through the receiving antenna 610 is received. The receiver 620 is amplified at a predetermined amplification rate and applied to the demodulator 640.

The signal input from the receiver 620 is demodulated into the original DTMF signal according to the frequency oscillated by the receiving oscillator 630 in the demodulator 640, and the demodulated DTMF signal is processed by the signal processor 650. And converted to the original key signal, and then applied to the control unit 700.

For reference, the DTMF signal is a signal in which the low group frequency and the high frequency group are respectively converted into the low group frequency and the high group frequency according to the key signal of the key input unit 400 in the DTMF signal generator 510, and then the noise of the noise group is combined. Incorporation and crosstalk are prevented to prevent malfunction of the vacuum cleaner.

Here, the command of the user corresponding to the key signal input from the signal processor 650 of the DTMF signal receiver 600, that is, the suction force of the air selected by the user is determined by the controller 700, and is determined by the controller 700. A control signal for driving the motor 810 at a speed corresponding to a user's command is applied from the controller 700 to the motor driver 800.

In addition, power of a power corresponding to a control signal applied from the control unit 700 by the motor driver 800 is applied to the motor 810 to drive the motor 810 at a speed corresponding to the control signal.

At this time, the impeller is rotated by the motor 810 driven by the power applied from the motor driver 800 to generate the suction force of air.

In this way, foreign matter such as dust is sucked into the dust collecting chamber of the main body 300 through the suction part 100 and the communication part 200 by the suction force of the air generated by the rotation of the impeller.

Thereafter, when the user operates a button of the key input unit 400 installed in the handle 220 to stop the operation of the vacuum cleaner or change the suction force of the air, the key signal is controlled by the wireless communication as described above. The suction force of the air and the on / off of the motor 810 are controlled by the motor driving unit 800 according to the control signal of the control unit 700 corresponding to the input key signal.

As described above, according to the present invention, by remotely controlling the cleaner body from the key input unit on the handle side by wireless communication using DTMF signal, it is unnecessary to install a communication cable, which can simplify the manufacturing process of the hose and reduce the weight of the hose. It works.

Claims (1)

In a vacuum cleaner which drives a motor according to a control signal to generate air suction force, and collects foreign substances such as dust into the dust collecting chamber by using the suction force. A key input unit comprising a plurality of buttons configured to control on / off control of the vacuum cleaner and suction force of air, and output a corresponding key signal as each button is operated; A DTMF signal transmitter which converts a DTMF signal corresponding to the key signal output from the key input unit and transmits the DTMF signal on a carrier; A DTMF signal receiver which receives the signal transmitted from the DTMF signal transmitter, demodulates the DTMF signal, and converts the signal into an original key signal; And a control unit for generating a control signal for adjusting on / off of the vacuum cleaner and suction force of air according to the key signal converted through the DTMF signal receiving unit.