KR100392395B1 - Control method for bi-directional communication of micro wave oven - Google Patents

Abstract

The present invention is to solve the above problems, and relates to a control method of a microwave oven capable of two-way communication and remote monitoring by remote control, and inputs data about the desired cooking through an external device, input Transmits the data to the microwave oven from the external device according to the preset data protocol, the microwave receives the data, stores the data in the storage unit, updates the cooking information, and when cooking is started, the cooking state information according to the preset monitoring protocol. By transmitting to an external device, not only the cooking level of the microwave can be set by the user in multiple stages, but also the state of the microwave can be remotely monitored.

Description

Control method for a microwave oven capable of two-way communication {Control method for bi-directional communication of micro wave oven}

The present invention relates to a microwave oven, and more particularly, to a control method of a microwave oven capable of multi-step cooking by remote control and capable of two-way communication capable of remote monitoring.

In general, a microwave oven is a device for cooking by ultra-high frequency unlike an external heating type cooking furniture using heat conduction and heat radiation. This microwave oven generates a high frequency of 2,450MHz by applying high voltage electricity to an ultra-high frequency oscillator tube called magnetron. The 2,450MHz high frequency generated from the magnetron changes the direction of the electric field by 2.45 billion times a second. When this high frequency is applied to the food, the molecules that make up the food rotate 2.45 million times a second and a lot of frictional heat. Is generated and food is cooked by this heat. Such a microwave oven can cook a desired food by selecting from a preset cooking menu.

Depending on the food, there are foods that require various output adjustments when cooking. For example, when cooking rice, it is first heated with a strong fire, but after a certain time elapses, it is put on low heat for a predetermined time. That is, depending on the food is a function that can be adjusted to vary the degree of cooking during cooking time.

An object of the present invention is to provide a control method of a microwave oven capable of two-way communication capable of multi-step cooking and remote monitoring by remote control.

1 is a block diagram illustrating a microwave oven capable of two-way communication according to the present invention.

2 is an explanatory diagram for explaining a protocol of a microwave oven capable of bidirectional communication according to the present invention;

3 is a flowchart illustrating a method for controlling a microwave oven capable of two-way communication according to the present invention.

Explanation of symbols on the main parts of the drawings

100: microwave oven 110: control unit

120: input unit 130: sensor unit

140: communication interface unit 150: load driving unit

160: storage unit

In accordance with another aspect of the present invention, a method for controlling a microwave oven capable of two-way communication includes an input unit for receiving information from a user, a storage unit for storing data, and a communication interface unit for transmitting and receiving information with an external device. A method of controlling a microwave oven, the method comprising: inputting data relating to desired cooking through the external device; transmitting the input data to the microwave oven according to a preset data protocol; Receiving and storing the storage unit and updating cooking information, and when cooking is started, transmitting cooking state information to an external device according to a preset monitoring protocol.

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

1 is a block diagram illustrating a microwave oven capable of bidirectional communication according to the present invention.

Referring to FIG. 1, the microwave oven 100 includes a control unit 110 that controls an operation. An input unit 120 that receives information from a user is electrically connected to the control unit 110. In addition, a sensor unit 130 for detecting an operation state of the microwave oven and a communication interface unit 140 capable of network connection with an external device are connected to the controller 110. At this time, the communication interface may be made of any one of LAN, RS-232C, Bluetooth (blue tooth) and power line modem.

In addition, the control unit 110 is connected to a load driving unit 150 for driving a load of a microwave oven such as a heater 151, a magnetron 152, and a storage unit 160 for storing updated information is electrically connected to the control unit. .

The microwave oven according to the present invention having the above-described configuration may set a multi-level cooking level according to the type of food to be cooked. In this embodiment, the cooking level of three levels is set.

The user sets the cooking level of the food to be cooked in the external device 200 (in this embodiment, a personal computer) for each step. At this time, the setting content sets the output of the microwave oven for each cooking time. For example, one minute after the start of cooking, the output maximum, two minutes after the output 50%, the remaining two minutes can be set to the output 35%. The contents set by the user are transmitted from the external device 200 to the communication interface unit 140 of the microwave oven 100 according to a preset data transmission protocol.

2A is an explanatory diagram for explaining a protocol of a microwave oven capable of bidirectional communication according to the present invention.

Referring to (a) of FIG. 2, the data protocol transmitted from the external device 200 to the microwave oven 100 includes a head code, a flag, a cook item number, and a weight. (Defrost g), first cooking level (1st. Power level), first cooking time (1st. Time MIN and 1st. Time SEC), second cooking level (2nd. Power level), second cooking time (2nd. time MIN and 2nd.time SEC, third cooking level (3rd.power level), third cooking time (3rd.time MIN and 3rd.time SEC), remaining minutes and seconds, and check sum for error correction It consists of 16 data such as. The flag FLAG data indicates the start, end and door state of cooking.

2 (b) is an explanatory diagram for explaining a data transmission protocol for remote monitoring according to the present invention.

Referring to (b) of FIG. 2, the monitoring protocol transmitted from the microwave oven 100 to the external device 200 includes a head code, a flag, a cook item number, and a weight. It consists of seven pieces of data: (thaw g), residual and residual seconds, and check sum. The flag FLAG data indicates the start, end and door state of cooking.

Hereinafter will be described the operation according to the present invention.

3 is a flowchart illustrating the operation of the microwave oven according to the present invention.

The user inputs data relating to desired cooking through the external device 200 (S10). At this time, the user sets the cooking level in multiple stages according to the type of food to be cooked. After the user inputs data about cooking, the external device 200 transmits the input data to the microwave oven 100 according to a preset protocol ((a) of FIG. 2) (S20).

The controller 110 of the microwave oven 100 determines whether data is received through the communication interface 140 (S30). If it is determined in step S30 that data is received by the communication interface unit 140, the controller 110 stores the received data in the storage unit 160 and updates cooking information (S40).

After data is not received by the communication interface unit 140 in step S30 or the data received in step S40 is updated in the storage unit 160, the controller 110 determines whether to start cooking ( S50). In order to determine the start of the cooking, the controller 110 determines whether a cooking command is input to the input unit 120 or a cooking start command is input by flag data among information received from the external device 200 through the communication interface 140. To judge.

If it is determined in step S50 that cooking is started, the controller 110 controls the load driving unit 150 to start cooking, and according to the protocol (FIG. 2 (b)) set in advance through the communication interface unit 140. The cooking state information is transmitted to the external device 200. The cooking state information is the weight and temperature of the food detected through the sensor unit 130 and the remaining cooking time. Accordingly, the user can monitor the current cooking state through the external device 200 and control the microwave oven through the external device 200 according to the monitoring result.

The controller 110 determines whether cooking is completed (S70), and ends when it is determined that cooking is completed.

As described above, according to the microwave oven capable of two-way communication according to the present invention, the cooking level of the microwave oven may be set by the user in multiple stages, and the state of the microwave may be remotely monitored.

Claims (5)

(correction) In the control method of the microwave oven comprising an input unit for inputting information from the outside, a storage unit for storing data, and a communication interface unit for transmitting and receiving information with an external device, Inputting cooking data of a cooking item which a user desires to cook to the external device; Configuring, by the external device, the input cooking data to satisfy a preset data protocol and transmitting the input cooking data to the microwave oven; Updating cooking data of the pre-stored food by receiving the cooking data transmitted from the external device and storing the cooking data in the storage unit; The microwave starting cooking according to the received cooking data; A method of controlling a microwave oven capable of bidirectional communication, comprising: configuring cooking state information of the food satisfying a monitoring protocol set to include a head code, a flag, a cooking item number, and remaining cooking time data, to the external device; . The method of claim 1, The data protocol transmitted to the microwave includes a head code, a flag FLAG, a number of cooking items, a weight, a first cooking level, a first cooking time, a second cooking level, a second cooking time, a third cooking level, And a third cooking time, remaining minutes and remaining seconds, and a checksum for error correction. (correction) The method of claim 1, The monitoring protocol is a control method of a microwave oven capable of two-way communication including weight data of the food and checksum data for error correction. (correction) The method of claim 2 or 3, The flag data includes a start and end information of cooking and opening and closing state information of the door control method of a microwave oven capable of two-way communication. (delete)