JPH04174219A - High-frequency heating device - Google Patents

Abstract

PURPOSE:To contrive a reduction in the costs arising from the provision of jumper lines and the masking of a microcomputer by setting up key numbers in the microcomputer through the entry of a menu selection key and processing the same. CONSTITUTION:The key scan of P41-46 is displayed by a microcomputer. When, for example, a power key is depressed in a large-scale model, an input signal is entered from R1 port into the microcomputer at the same time as the key scan is delivered from the P42. Based on thus fed data, the key number is set up in the microcomputer and a separate key is processed for each key number on the program. By this method, the kinds of devices are identified on a key matrix, whereby the kinds of the microcomputer component parts and the casts can be reduced. By reducing the kinds of the microcomputer, the developmental efficiency thereof can also be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a high-frequency heating device in which a microcomputer determines the model based on the pressed positions of menu selection keys arranged in a matrix.

BACKGROUND ART FIG. 5 is a matrix table of developed models, and FIG. 4 is a diagram showing a method for determining the model of a microcomputer used in a conventional high-frequency heating device.

1 is a microcomputer (hereinafter referred to as microcomputer) that processes each menu selection key and controls relays, etc. 2 and 3 are jumper wires, 2 is +5V, 3 is O
(1), but depending on the model, either 2 or 3 will be installed.

In Fig. 4.5.6 are the types of microcontrollers to be developed, and the mark Q is the developed model. 4 and 6, for example, determine the model for Australia and for New Sealant using a conventional model determination method.

Problems to be Solved by the Invention However, with this configuration, developing three types of microcomputers increases costs such as mask fees, and also requires time and effort for management such as debugging during the development stage. When trying to develop 5 and 6 as one microcontroller, the conventional method requires new jumper wires to be installed.

Therefore, the present invention aims to develop a microcomputer using a key matrix and a model determination method that does not require jumper wires, and to reduce costs associated with installing jumper wires and masking the microcomputer.

Means for Solving the Problems In order to achieve the above object, the high frequency heating device of the present invention includes:
A heating means for heating food, a matrix of menu selection keys for setting a desired cooking menu, and a microcomputer for processing each of the menu selection keys, relaying, etc. Create a keyhole in a microcomputer by hand,
By operating this, the model is determined.

Function: The high-frequency heating device of the present invention has two types of microcomputers installed at a distance of 11 m.
Furthermore, by introducing a model determination method that does not require the installation of jumper wires, it is possible to reduce costs and improve efficiency by eliminating the hassle of management during the development stage and on-line inspection process. This has the effect that development can be carried out.

EXAMPLE Hereinafter, a microwave oven as a high-frequency heating device according to the present invention will be explained with reference to the drawings.

FIG. 1 is a key matrix diagram showing an embodiment of the present invention, and is a matrix of the microcomputer 5 shown in FIG. Figure 2 is also the same key matrix diagram as Figure 1.
This is a matrix of the microcomputer 6 shown in the figure. P41-46
A key scan is output from the microcomputer 1. For example, in a large model, if the Power key is pressed, the microcomputer 1 is sent from the R1 port at the timing when a key scan is issued from R42.
The system is such that the input signal is taken in.

Based on the captured data, a key block is created within the microcomputer, and each key is processed for each key level on the program. Therefore, in order to specify the branch destination address for each key Nα on the program, the conventional method requires 24 pieces of data.

λ Located in A block of the middle model in the *th time,
If the menu selection key is moved to the B block, the pattern will be the same as the large model.

In this way, if the key lock patterns of the two models are unified by manipulating the key locks, only 16 key level branch destination address data will be needed in the program, and as a result, This will also reduce the size of the program.

FIG. 3 is a flowchart of a process for unifying the key matrix of a medium-sized model with that of a large-sized model.

Assuming that a key of a medium-sized model is pressed, for example, the BAKE key (key resistance is 10) (steps 21 and 22),
A flag indicating a medium-sized model is raised (step 23)
, then subtract 8 from the key floor to get the BA of the larger model.
The key number of the KE key is 8, and the BAKE key is processed based on the data of the branch destination address.

By determining the model on the key matrix in this way, the number of types of parts such as microcomputers can be reduced, and costs can be reduced. Additionally, by reducing the number of types of microcontrollers, the efficiency of microcontroller development is improved.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) The number of microcontroller types to be developed is reduced by one, and there is no need to install new jumper wires, so the types of parts ordered can be reduced and costs can be reduced.

(2) By reducing the number of microcomputers to be developed, it is possible to reduce the effort required to check operation, etc., improving the efficiency of developing microcomputers and making standardization possible, which also improves productivity.

(3) Since there is no need to manually change models on the factory line, quality can be improved.

[Brief explanation of drawings]

1 and 2 are key matrix diagrams showing an embodiment of the high-frequency heating device of the present invention. FIG. 3 is a flowchart for unifying the key matrices of the Kaishin model and the Dai model. The figure shows the conventional model determination means.
FIG. 5 is a matrix diagram of the developed models. l...Microcomputer, 2-3...
··Jumper. Name of agent Patent attorney Akira Okaji and 2 others 01 Zushin P46 P45 P44 P43
P42 P41 Figure 1 Figure 3 Figure 4

Claims (1)

[Claims] A heating means for heating food, a matrix of menu selection keys for setting a desired cooking menu, and a microcomputer for processing each of the menu selection keys and controlling relays, etc. A high-frequency heating device that determines the pressed position of a selection key within the microcomputer and operates the data to determine a plurality of models.