KR19980075675A - Apparatus and method for managing reservation time of food cookware - Google Patents

Abstract

The present invention relates to an apparatus and method for managing a reservation time history of a food cooking utensil, and an object of the present invention is to store history data of a time reservation in the storage means by using a nonvolatile storage means in the food cooking utensil. In addition, each time the cooking utensil is connected to a power source, the reservation time is updated to automatically operate the function of the cooking utensil according to the most recently stored time reservation data.

In accordance with an embodiment of the present invention, a time reservation history management method includes determining whether a reset state is required for a food cooking utensil (S1) and, if necessary, a menu mode selected by a user in a ROM. Accessing the time reservation data corresponding to the time reservation data corresponding to the display unit 50 (S2); if the reset state is not necessary, accessing the time reservation data stored in the RAM 30 (S3), and the user inputs a key input unit ( 10) changing and setting the reservation time data (S4) and storing the changed set reservation time data in the RAM 30 (S5).

Description

Apparatus and method for managing reservation time of food cookware

The present invention relates to a time reservation function of a food cooking utensil, and more particularly, in the food cooking utensil, the non-volatile storage means stores historical data (data) of the time reservation in the storage means, and the cooking utensil is again provided. The present invention relates to an apparatus and a method for automatically operating a function of a cookware according to the most recently stored time reservation data each time it is connected to a power source.

As an example of a food cooker, an electric rice cooker generally includes a key input unit including a key for setting various operation modes of the electric rice cooker, and a heater driving unit installed at the bottom and the lid and the body of the electric rice cooker to drive a heater to heat the inside of the electric rice cooker. And a display unit for displaying various operation states of the rice cooker, and a microprocessor for controlling various operations of the rice cooker. In addition, it is installed on the bottom and the body and the lid of the rice cooker has a sensing unit for detecting the heat generated by the sensor by the sensor.

Referring to the conventional cooking operation function of the electric rice cooker having the above configuration and having a time reservation function, the microprocessor waits for key input when the power is connected, and the user enters the menu mode in a predetermined key input form through the key input unit. And time reservation key. Then, the microprocessor checks the menu mode selected by the user (for example, the steaming mode) and stores the data stored at the time of manufacture in the read-only storage device (ROM), that is, the data (for example, the time when the cooking process is scheduled to start). 6 am) and data on the cooking process time corresponding to the menu (for example, 2 hours) are accessed, and the data is displayed on the liquid crystal display (LCD) of the display unit. At this time, the user can check the displayed reservation time and cooking process time, and change the reservation time data to the desired reservation time (for example, 7 am) and cooking process time (for example, 4 hours) with a predetermined key input. have. The cooking process is performed according to the reservation time changed by the user.

In the time reservation function of the conventional electric rice cooker, after changing the reservation time and the cooking process time after the cooking process and cutting off the external commercial power source, the changed set data value is not stored, so the power is connected again. In this case, the data stored in the ROM at the time of manufacture (6 AM and 2 hours in the above example) is accessed instead of the historical data (7 AM and 4 hours in the above-described modified setting data). Therefore, the user has the inconvenience of changing the setting to the desired cooking start reservation time and cooking process time whenever you disconnect the power of the rice cooker.

The present invention has been made to solve the above problems, and when using the non-volatile storage means in the food cooking utensil to store the history data of the time reservation in the storage means, when the cooking utensil is connected to the power source again The purpose of the present invention is to provide a function for automatically operating the function of the cooking appliance according to the most recently stored time reservation data.

In order to achieve the above object, a method for managing a reservation time history of a food cooking appliance according to the present invention uses a RAM as an example of a data storage means in addition to an existing ROM, and data stored in the RAM is stored in an external commercial power source. A food cooking utensil using a back-up battery to be stored even when blocked, wherein the stored reservation time data corresponding to the menu mode selected by the user is accessed from the RAM, and the user makes a reservation through a key input means. Changing the set time, and storing the changed set reservation time data in the RAM instead of previous data. The method may further include accessing the reserved time data from the ROM when the cooking utensil is reset or when the RAM data is deleted.

1 is a block diagram of a control system of an electric rice cooker according to an embodiment of the present invention.

Figure 2 is a flow chart according to the reservation time history management method of the food cooking utensil of the present invention

Explanation of symbols on the main parts of the drawings

10: key input unit 20: microprocessor

30: RAM 31: back-up battery

40: heater driving unit 50: display unit

Hereinafter, a configuration according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a configuration diagram of a control system of an electric rice cooker according to an embodiment of the present invention, including a key input unit 10 including keys for setting various operation modes including a reservation time of the electric rice cooker, and controlling various operations of the electric rice cooker. The microprocessor 20, the RAM 30 for storing the data of the reservation time, the backup battery 31 for applying a voltage so as not to erase the data of the RAM, and the rice cooker is installed on the bottom, lid and body of the rice cooker The heater drive part 40 which drives the heater which heats the inside of the inside, and the display part 50 which display the various operation states of an electric rice cooker are comprised. In addition, there is a detector that is installed on the bottom and the body and the lid of the ROM and the rice cooker, which stores the data of the reservation time at the time of manufacturing the rice cooker, and detects the temperature generated by each sensor by the sensor.

FIG. 2 is a flowchart illustrating a method for managing a reservation time history of a food cooking utensil according to the present invention, in which step S1 determines whether a food cooking utensil requires a reset state, and if necessary, corresponds to a menu mode selected by a user in a ROM; Accessing the time reservation data on the display unit 50 (S2); accessing the time reservation data stored in the RAM 30 (S3) if the reset state is not necessary; and a user inputs the key input unit 10. And changing and setting the reservation time data (S4), and storing the changed and set reservation time data in the RAM 30 (S5).

Referring to the operation of the embodiment of the present invention configured as described above are as follows.

When an electric rice cooker as an example of a food cooking utensil is manufactured, data of a reservation time is stored in a ROM, which is a permanent storage means. When the rice cooker is connected to a power source and the user operates the operation key of the key input unit 10, the microprocessor 20 checks the menu selected by the user in the key input and stores data of the reservation time corresponding to the menu. Access is made from the means (RAM or ROM) and displayed on the display unit 50. However, if the reserved time data previously executed in the RAM 30 is stored, the reserved time history data stored in the RAM 30 is accessed and displayed on the display unit 50, but the history data is stored in the RAM 30. If not, the data at the time of manufacture is accessed from the ROM and displayed on the display unit 50.

That is, the microprocessor 20 determines whether a reset state is required in step S1, when the user presses the reset key of the key input unit 10, or the backup battery 31 supplies the RAM 30 to the RAM 30. If the voltage to be applied is 2.5 V or less (check the advantage in the judgment step S1), and if the history data of the RAM 30 is erased, it is determined that a reset state is necessary (Yes). The historical data of the reservation time is accessed (S2).

The user sees the reservation time displayed on the display unit 50 (for example, 6 am as the cooking start time, 2 hours as the cooking time of the steaming), and changes the reservation as desired through the key input unit 10 (for example, Set the cooking start time to 7:00 AM and steam cooking time to 4 hours). The microprocessor 20 stores the reservation time data changed and set by the user in the RAM 30 (S5). In this way, the historical data is updated with the latest reservation time. If the user does not change the reservation time data, it moves to the next process after a few seconds.

When the microprocessor 20 stores data in the RAM 30 (S5), the backup battery 31 applies voltage to the RAM 30 even when the external commercial voltage is blocked in the rice cooker. The changed (updated) history data stored is not erased, and when the time reservation function of the rice cooker is used next, the recently changed and performed reservation time data (ie, history data) is accessed from the RAM 30 to display the display unit ( 50) (S3). The next step of the rice cooker includes a step in which the heater of the heater driving unit 40 is driven and cooked according to the reservation time.

In addition, in order to update, store, and display the reservation time data of various menus in the present invention, when the reservation time data is stored in the RAM 30, the storage address (address) and menu for storing cooking start reservation time data are stored. Also, the storage locations for storing the reserved cooking process time data are divided. That is, the microprocessor 20 checks the menu mode selected and input by the user and accesses data from the storage where the reserved time of the confirmed menu is stored and displays the data on the display unit 50 (S3). The same is true when accessing data from the ROM (S2). Since the storage locations are divided according to menus, cooking reservation times of various menus can be stored as much as the storage capacity.

Therefore, the above description is given only for the steaming, but is not limited to this, the present invention can be applied to various menus. In addition, although the RAM and the backup battery have been exemplified as a means for storing the changed scheduled time in the above description, the method of updating the reserved time of the present invention is not limited thereto, and if a nonvolatile storage means is used, the present invention may be updated as desired. Reservation time (history data) can be used.

The present invention operated as described above, by using the non-volatile storage means in the food cooking utensils to store and manage the reservation time value changed by the user in the storage means to provide a function to display the changed reservation time data later do.

Therefore, the present invention enables the user to automatically use the recently used reservation time again, thereby making the use of the time reservation function of the cooking utensil more convenient. In addition, since the user may know the time when the cooking process of the recently cooked food menu is performed, it may be effective to reset the cooking process time by referring to the state of the recently cooked food menu when cooking the food again.

Claims (4)

In the food cooking utensil having a reservation function of the cooking start time for each menu according to the type of cooking start reservation time and a predetermined number, Non-volatile storage means that the microprocessor accesses so that the time reservation data changed by the user is stored and the history data is reused. In the method for setting the reservation time of the food cooking utensil having non-volatile storage means for managing the history data so that the history data can be reused in the cooking process, Accessing history data from the storage means at a predetermined time corresponding to a menu mode selected by a user and displaying the data on a predetermined display means; Changing and setting a reservation time by a user using a predetermined input means; And storing the reserved time data changed and set by the user in the storage means. The method of claim 2, further comprising the step of accessing the predetermined reservation time data stored in the ROM at the time of manufacture of the cookware from the ROM when the history data is not stored in the storage means. Reservation time history management method of a food cooking appliance comprising a. The method of claim 2, wherein when the food cooking utensil is in a reset state, accessing predetermined reservation time data stored in the ROM at the time of manufacture of the cooking utensils from the ROM and storing the accessed data in the storage means. History management method of the reservation time of the food cooking appliance further comprising a.