KR20030079585A - A method for time correction of microwave oven - Google Patents

Abstract

PURPOSE: A time correction method for a microwave oven is provided to achieve improved user convenience by transmitting the time displayed on a computer to the microwave oven through a single key operation. CONSTITUTION: A time correction method comprises a step of connecting a microwave oven and an external device through a communication unit; a step of selecting a time correction function; a step of comparing the output time of the external device and the output time of the microwave oven; and a step of setting the output time of the microwave oven to be equal to the output time of the external device in accordance with the result of the comparison.

Description

A method for time correction of microwave oven

The present invention relates to a microwave oven, and more particularly, to a time correction method of the microwave oven, which can easily reset the current time displayed on the microwave oven.

Looking at the time correction method of the microwave oven according to the prior art as follows.

1 is a control block diagram for driving a microwave oven according to the prior art.

A microcomputer (4) having built-in programs for each function of the microwave oven, and performing various control and calculations of the microwave oven, and inputting power supplied from the outside and converting the power into a power of a required size in the product, 4) a power supply circuit 1 for supplying the power supply, an oscillation circuit 2 for supplying a reference clock pulse for the microcomputer 4 to execute a program, and using a dial to set the function and cooking time of the microwave oven. And a dial input circuit 6 and a key input circuit 7 capable of directly inputting desired functions of the microwave oven.

In addition, the display device 5 for notifying a user to check the contents input from the key input circuit 7 and the dial input circuit 6 and the operation state of the microwave oven, and the key input circuit 7 and And a relay controller 3 for controlling the driving of the magnetron, the heater, the fan motor, the oven lamp, and the like so that the microwave oven is operated in accordance with the contents input from the dial input circuit 6.

Looking at the operation control process according to the control configuration as follows.

A function desired by the user for microwave cooking is input through the key input circuit 7 or the dial input circuit 6. The control signal input through the key input circuit 7 or the dial input circuit 6 is transmitted to the microcomputer 4. The microcomputer 4 determines the signal and outputs a control signal to the relay controller 3. The relay controller 3 controls the relay (not shown) connected to the magnetron, the heater, the fan motor, the oven lamp, and the like to turn on / off according to the control signal of the microcomputer 4.

In addition, the microcomputer 4 outputs a control signal to the display device 5 so that the user can confirm the cooking function selected by the user. The display device 5 receives the control signal of the microcomputer 4 to display the cooking function selected by the user on the display screen provided in the microwave oven.

Hereinafter, an embodiment of a time correction method of a conventional microwave oven according to the above configuration will be described.

2 is a control state diagram for resetting the time in the microwave oven according to the prior art.

As shown in the figure, the type of each cooking function, such as manual cooking, automatic cooking, thawing, is displayed on the initial display screen of the microwave oven. In the initial display screen state, the user inputs a cooking function desired by the user by using a key input or a dial. The input signal is input to the microcomputer 4, and the microcomputer 4 recognizes the input signal. The sub-function according to the function selected by the user is controlled to be displayed on the display device 5.

Therefore, as shown in the figure, when the user selects 'Wisdom of Life' among each function, the lower function corresponding to the 'Wise of Life' which is the upper function selected by the user is displayed on the display screen. That is, as shown in the drawing, the lower function corresponding to the wisdom of life among the upper functions, such as 'clock', 'deodorization', 'bottle sterilization', 'cooking dish towel' and the like are displayed on the display screen. Accordingly, the user selects the clock function to reset the time.

As the user selects the clock function, a time can be set, and a screen displaying the clock is output through the display screen. The user can confirm this and reset the time at the same time. When the user selects a time to be set by using a key input or a dial, the selected signal is input to the microcomputer 4. The microcomputer 4 controls the transmitted signal and outputs the same to the display device 5. The signal output through the display device 5 is displayed on the display screen so that the user can recognize at a glance.

Then, after resetting the time as described above, in order to complete the set items by pressing the dial key to inform that the time setting is completed. Accordingly, the microcomputer 4 receiving the signal recognizes the completion signal and controls the display screen to be displayed as the initial screen. In this case, a time reset by the user is output on the initial screen, and the user may confirm this.

However, the time correction method of the microwave oven according to the prior art has the following problems.

When the microwave oven according to the related art is in a standby state with power applied, a time set on the microwave oven may be counted quickly or slowly due to the influence of external noise or the like. At this time, in order to directly reset the time output on the display screen, the user had to set the time through a separate key input provided in the microwave oven while checking through the display screen. As a result, the user may feel troublesome.

Accordingly, an object of the present invention is to provide a time correction method of a microwave oven, which simply resets the time without a separate key input provided in the microwave oven.

1 is a control block diagram for driving a microwave oven according to the prior art.

2 is a control state diagram for resetting the time in the microwave oven according to the prior art.

3 is a control block diagram for driving the microwave oven according to the present invention.

Figure 4 is a control state diagram for correcting the time of the microwave oven according to the present invention using a computer.

5 is an operation control flow chart for setting the time of the microwave oven according to the present invention.

Explanation of symbols on the main parts of the drawings

10: power supply circuit 20: oscillation circuit

30: relay control unit 40: microcomputer

50: display device 60: dial input circuit

70: serial communication circuit 80: key input circuit

According to an aspect of the present invention, there is provided a method for calibrating a microwave oven and an external device through a communication means; Selecting a time correction function; Comparing the output time of the external device with the output time of the microwave oven; According to the comparison determination, it comprises a step of setting the output time of the microwave oven equal to the output time of the external device.

Hereinafter, a method for correcting time of a microwave oven according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a control block diagram for driving the microwave oven according to the present invention.

Built-in a program for each function of the microwave oven, the microcomputer 40 for performing various control and calculations, and input the power supplied from the outside to convert to the power of the required size in the product to the microcomputer 40 A power supply circuit 10 for supplying, an oscillation circuit 20 for supplying a reference clock pulse so that the microcomputer 40 can execute a program, and a key input circuit for a user directly inputting a desired function of a microwave oven ( 80), a dial input circuit 60 for inputting a function of a microwave oven desired by a user using a dial, and a serial communication circuit 70 for communicating with an external device. In the present invention, a computer connected to the Internet is used as an embodiment of the external device.

In addition, the relay control unit 30 for controlling the driving of the magnetron, heater, fan motor, oven lamp, etc. to operate the microwave oven according to the input from the key input circuit 70 or the dial input circuit 60, and the And a display device 50 for informing a user to check the contents input from the key input circuit 70 or the dial input circuit 60 and the operation state of the microwave oven.

Looking at the operation control process of the microwave oven according to the present invention according to the control configuration as described above are as follows.

In order to perform cooking using a microwave oven, a user inputs a cooking function through the key input circuit 70 or the dial input circuit 60. The control signal input through the key input circuit 70 or the dial input circuit 60 is transmitted to the microcomputer 40. The microcomputer 40 determines the signal and outputs a control signal to the relay controller 30. The relay controller 30 controls the turn on / off operation of a relay (not shown) connected to a magnetron, a heater, a fan motor, and an oven lamp according to a control signal of the microcomputer 40.

In addition, the microcomputer 40 outputs a control signal to the display device 50 so that the user can confirm the cooking function selected by the user. Accordingly, the display device 50 receives the control signal of the microcomputer 40 to display the cooking function selected by the user on the display screen provided in the microwave oven.

On the other hand, if you want to reset the time set in the microwave, the communication means is provided so that the time of the computer connected to the web is transmitted to the microwave, the communication means is a serial communication circuit (80). At this time, the communication protocol is set so that the microwave oven and the computer can communicate through the serial communication circuit 80, and in the embodiment of the present invention, a communication protocol such as LnCP is used.

Hereinafter, an embodiment of a time correction method of the microwave oven according to the present invention will be described.

4 is a control state diagram set using a computer for resetting the time of the microwave oven according to the present invention.

In the microwave oven according to the present invention, in addition to using the main body of the microwave oven to reset the time, the output time of the web-connected computer can be reset to the microwave oven.

As shown in the figure, if the 'Wise of life' function among the upper functions outputted from the initial display screen is selected through the key input circuit 70 or the dial input circuit 60, the signal is the microcomputer 40. Is passed on. The microcomputer 40 recognizes the transmitted signal and controls to display 'clock', 'deodorize', 'bottle bottle disinfection', 'live dish', 'internet', etc., which are sub-functions of 'the wisdom of life'.

Under the control of the microcomputer 40, the sub-function of the 'Wisdom of Life' is displayed on the display screen, among which the user selects the 'clock' function to reset the time. The screen for setting the time by the function selection is output through the display screen.

Therefore, the user selects a time using the key input circuit 70 and the dial input circuit 60 on the display screen, and the time information set by the user is transmitted to the microcomputer 40. Accordingly, the microcomputer 40 recognizes that the time has been reset. After resetting the time as described above, the dial key is pressed to transmit the time setting completion signal to the microcomputer 40.

In response to the dial key input as described above, the microcomputer 40 recognizes that the time reset is completed, and outputs the initial screen of the microwave oven. At the same time, as shown in the figure, the time set by the user is output on the initial screen.

Next, the microwave oven of the present invention can reset the time by an external connection.

That is, as shown in the figure, when the 'Internet' function is selected from the upper functions configured on the initial screen, the selection signal is transmitted to the microcomputer 40. At this time, the microcomputer 40 receiving the signal is connected to the computer through the serial communication circuit 80 to reset the time of the microwave oven corresponding to the signal.

At this time, the computer is automatically connected to the Internet, and the control keys of the microwave oven are listed as downloadable web pages on the screen of the computer. Select the 'clock correction' key from the control keys. According to the 'clock correction' key selection, the output time of the computer is transmitted to the microcomputer of the microwave oven through the serial communication circuit. At this time, a separate memory means (not shown) is provided to store the time data.

The microcomputer compares the output time on the computer with the output time on the microwave, and controls the output time on the microwave oven to be automatically reset to the output time on the computer without further user intervention.

5 is an operation control flowchart for setting the time of the microwave oven according to the present invention.

When the time is displayed on the display screen of the microwave oven (Step 100), when the 'Internet' function provided in the display device 50 of the microwave oven described with reference to FIG. 4 is selected (Step 110), the input signal Is transmitted to the microcomputer 40. The microcomputer 40 recognizes that the signal is a time correction signal and automatically connects to the Internet. At this time, the signal is transmitted to the computer through the serial communication circuit 80 to automatically connect to the Internet.

In response to the transmitted signal, the computer displays a time correction (setting) key provided on the Internet, and the user selects the key (step 120). As the key is selected, the time being counted on the computer is transmitted to the microcomputer 40 through the serial communication circuit 80, and the microcomputer 40 is counted on the microwave oven and the computer. It is determined whether or not the same (step 130).

According to the above determination, if the time counted on the microwave oven and the computer is the same, it is not necessary to correct the time. If the time counted on the microwave oven and the computer is not the same, time correction is necessary.

Therefore, according to the determination of step 130, the setting time of the microwave oven is corrected by the setting time of the computer (step 140). Due to the correction, the corrected time is output on the initial display screen of the microwave oven (step 150).

As described above, the microwave oven according to the present invention is connected to a computer, and compares the time data counted by the computer and the microwave oven, and controls to be set as the time data of the computer.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

Therefore, the following effects can be expected due to the present invention.

The time correction method of the microwave oven according to the present invention transmits the time on the computer to the microwave oven with the time setting key provided in the microwave oven with a single key operation, and sets the time through a lot of manual operation, thereby making time. Reduce waste. Therefore, by providing convenience to the user, it is possible to maximize the satisfaction of the product.

Claims (1)

Connecting the microwave oven and an external device through a communication means; Selecting a time correction function; Comparing the output time of the external device with the output time of the microwave oven; And setting the output time of the microwave oven equal to the output time of the external device according to the comparison decision.