JPS58110922A - Cooking oven - Google Patents

Abstract

PURPOSE:To provide a cooking oven for cooking food with application of heat by use of a microprocessor, which is capable of keeping the capacity of a RAM constant irrespective of increasing of cooking data, by transmitting cooking data given from external equipment to the RAM in the main body of the cooking oven. CONSTITUTION:A cooking oven of this invention comprises a display section 15 for displaying cooking information and other data, a display control section 18 for controlling the display section 15, an input section 16 consisting of keys, a microprocessor 1 for executing computation according to the control sequence stored in a ROM2, a RAM3 for storing cooking data, etc. The microprocessor 1 is provided with a HOLD terminal 8, so that an address terminal 10, a data terminal 11, etc. of the microprocessor 1 are kept in a high-impedance state by transmitting a HOLD signal to the HOLD terminal 8 from the outside. Further, at least a HOLD signalling line 9 and an address signalling line 4 and a data signalling line 5 of the microprocessor 1 are extended to the outside 13 of the body of the cooking oven.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention belongs to the field of heating cookers such as microwave ovens and gas open cookers.

Conventionally, microwave ovens and the like have been made more user-friendly by combining humidity sensors, temperature sensors, atmosphere sensors, and microcomputers for the purpose of automatic cooking.

However, in automatic cooking, the heating power distribution and heating time are determined for each dish name.

The heating procedures after sensor detection are different, and the more you try to improve the quality of cooking, the more cooking data for one cooking item increases, and the heating method becomes complicated. It is becoming.

In addition, apart from automatic cooking, when looking at the actual usage of microwave ovens, most of the time they are used for reheating, and for this reason, there is a function that allows you to manually set the heating power and heating time. There is always one.

In other words, automatic cooking and manual cooking require a combination of both, and conventionally this has been done using the functions of a microprocessor, but the program size that indicates cooking information and microprocessor control means has become large. Although the capacity of storage means (ROM, RAM) has increased considerably, and the integration of memory is progressing day by day, large capacity devices still have the problem of increasing costs. Even in the microwave ovens currently on the market, two 4-pit microcomputers and two R
Currently, products with an OM capacity of 8 are also sold.

An object of the present invention is to transmit cooking information from an external device (for example, a home computer) to a RAM in the main body of the cooking opener in which cooking is performed using a microprocessor, thereby increasing the number of cooking items and providing cooking information. To provide a cooking opener in which the capacity of RAM can be kept constant even if the capacity increases, and the capacity of ROM can also be reduced compared to the conventional one without changing the program size.

The configuration and operation will be explained below based on the drawings.

FIG. 1 is a block diagram showing the microprocessor and peripheral circuitry of the cooking device according to the present invention. 1 is 8
bit-parallel microgrocer sensor (here, aosscpty made by Intel), 2 is ROM (RE
AD, 0NLY MEMORY), 3 is RAM
(RANDOM ACCESS MEMORY), 4
is an address signal line, 6 is a data signal line, 6 is a chip select circuit, 7 is a chip select signal line, 8 is HO
The LD terminal 9 is a HOLD signal line. Further, 10 is an address terminal, and 11 is a data terminal. Normally, when using the cooking open unit, the HOLD terminal 8 is at a LOW level, and the output terminal of the CPU 1 and the address terminal 10
．． The data terminal 11 is in a driven state, address information is transferred to the address signal line 4 by the operation of the microprocessor 1, the chip select terminal of the ROM 2 is activated in the chip select circuit 6, and data is transferred from the ROM 2 to the data signal line 4. The microprocessor 1 is entered via the microprocessor 1. R
The operation of AM5 is similar. Microprocessor 1 is
In this way, address information is updated one after another and various calculations are performed. Currently, manual cooking programs are stored in ROM2, and for automatic cooking, cooking data and information for each cooking item are stored in RAM3 from an external device (such as a home computer).
If it can be placed in the open cooking mode, manual cooking can always be done by itself. When performing automatic cooking, connect the external device 12 (for example, the home computer to the external device 12 by connecting the address signal line 4, data signal a5, and HOLD signal line 9 via the external device connection terminal 13).
When the HOLD signal line 9 is set to HIGH level, each output terminal, address terminal 10, and data terminal 11 of the microprocessor-1 all enter the f(IGH impedance state), and the microprocessor-1 stops operating. -1 peripheral area, ROM2, RAM
3 etc. are separated from the microprocessor-1 and can operate under the control of the external device 12. If address information and data information are transferred from the external device 12 to the address signal line 4 and data signal line 6 via the external device connection terminal 13, the data is stored in the RAM 3. If this data is used as cooking data for each cooking item, cooking data can be input from the external device 12 during automatic cooking. To obtain this 114 configuration, the system procedure program (//
j. For manual cooking programs and automatic cooking, only the core automatic cooking side procedure program is required without inputting cooking data, which reduces the program size and ROM capacity. There are advantages.

Next, an example in which this embodiment is applied to a microwave oven will be described.

FIG. 2 is a perspective view of the microwave oven 14, where 15 is a display section (CRT in this case), 16 is an input section consisting of a keyboard, and 13 is an external Vrlk device connection terminal connection terminal 7 which is an external device connection line. 12 (for example, a home computer). FIG. 3 is a block diagram of the electric circuit section of the microwave oven, where 18 is a display section, 16 is a display section, 19 is an I10 interface for the keyboard (input section) 16, and 20 is a block diagram of the electric circuit section of the microwave oven. is I10 for microwave oven drive circuit
It is an interface. When cooking manually, input the heating power and heating time from the keyboard (input section) 16,
By inputting the start key to start cooking, the microprocessor-1 executes the control procedure from the ROM2.
The microwave oven drive circuit is operated via the Ilo interface 20 to perform cooking. A description of the microwave oven drive circuit 21 will be omitted here. Display section 1 at that time
The screen of No. 6 is shown in FIG. 4-1. During automatic cooking,
The display control unit 18 is controlled from the external device 12 (home converter in this case), and the display unit 15 [Fig. 4-2
screen is displayed, and after transferring the cooking items and the cooking information (data) of the cooking items to the RAM 3, if the HOLD signal is set to LOW, the connection with the external device 12 is disconnected, and the microprocessor-1 is also disconnected. And the microwave works.

Therefore, by pressing the start key on the input section 16, automatic cooking can be performed. Therefore, when used as a standalone microwave oven, especially when reheating with manual cooking, you can easily cook with conventional operations, and when using automatic cooking, even if the cooking software changes one after another. Also, even if the number of cooking items increases one after another, automatic cooking is possible by transmitting cooking data from an external device, making usability 1 - very convenient.

As is clear from the above explanation, the ROM around the micro-pro sensor installed in the cooking opener of the present invention,
If the RAM etc. can be connected to and accessed from external devices, cooking data can be transmitted from the external device, and the ROM and RAM inside the Cooking Open main unit contain the basic control procedure program. The ROM capacity can be small since it is only necessary to memorize only the following information. Needless to say, this also leads to reduced costs for open cooking.

Father, the microprocessor inside the cooking open body does not intervene in the transmission of cooking data to external devices, so the transmission speed is fast (direct memory access → DM).
There is also the advantage of method A).

[Brief explanation of the drawing]

Figure 1 is a circuit block diagram around the cooking open microprocessor sensor of the present invention, Figure 2 is a perspective view of a microwave oven that is an embodiment of the present invention, and Figure 3 is an electronic Range microprocessor - peripheral circuit block diagram, Figure 4 1. -2 is a diagram showing an example of a display screen of the display unit. 1...Microprocessor-12...
ROM. 3...-RAM, 4-@...address signal line, 5...data signal line, 8...HOL
D terminal, 9...HOLD signal line, 1o...
...Address terminal, 11...Data terminal, 12
······External device. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
Figure 4-1 Figure 4-2

Claims (1)

[Claims] (1) At least a display section that displays cooking information, a display section that controls the display section, an input section consisting of keys, a microprocessor that operates according to control procedures stored in ROM, and ElfU information. The microprocessor has a RAM for storing HOLD, etc.
Each output terminal (address terminal, data terminal, etc.) of the microprocessor is configured to be in a high impedance state by transmitting a HOLD signal from the outside to the core terminal, and at least the HOLD signal line and the microprocessor A cooking open with the address signal line and data line exposed outside the cooking open main unit. <2) If you connect at least the HOLD signal line, the rear address signal line, and the signal line to another external device (for example, a pomcon beater), you can connect the HOL signal line from the external +S device.
The cooking opener according to claim 1, wherein the RAM, display section, etc. in the cooking opener main body can be accessed by transmitting the D signal.