JPH07100059A - Microcomputer-controlled cooker - Google Patents

Abstract

PURPOSE:To provide a cooker of high reliability that allows unmanned inspection. CONSTITUTION:In a microcomputer-controlled cooker having a microcomputer for controlling cooking operations, the microcomputer 20 is provided with a communications means 31, an input state transmission means 33 for transmitting information about the plurality of inputs of an input circuit device 30 to the outside via the communications means 31, and a current time reception means 34 for setting the current time of a timepiece means 25 by receiving a current time signal transmitted from the outside. The microcomputer 20 is further provided with an output operation means 35 for operating the plurality of output circuit devices 14 one by one or in combinations in response to specification data transmitted from the outside. An input state inspection device 40, a reference timepiece device 41 and an output inspection device 42 are programmed in the personal computer 39 of an inspection device 36 and the communication means 31 of the microcomputer 20 is connected to the communicator 37 of the inspection device 36, to transfer numerical data between the microcomputer 20 and the inspection device 36 for automatic inspection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microcomputer-controlled cooker such as a rice cooker, and to quality inspection thereof.

[0002]

2. Description of the Related Art A microcomputer-controlled cooker, for example, a microcomputer-controlled rice cooker, is used to cook delicious rice by finely adjusting the amount of fire such as "beginning choro choro medium papa ..." It is finely controlled by a microcomputer.

Further, it is convenient to apply this heat control to have a high function of cooking various menus such as "porridge" and a timer means for cooking the current time by providing a clock means for moving the current time. Functions are provided for the purpose of sex. The microcomputer is used not only for the microcomputer controlled rice cooker, but also for a microcomputer controlled electric pot, a microcomputer controlled bakery (baking machine), a microcomputer controlled hot plate, etc. for controlling the heating and improving convenience.

In such a microcomputer-controlled cooker, a plurality of input circuit devices such as an operation switch, a plurality of temperature sensors, a power supply frequency judgment circuit, a power supply voltage judgment circuit, etc. are used for the operation of the heating control and convenience function. Is provided. On the other hand, a plurality of output circuit devices such as a plurality of heaters, motors and buzzers, display circuits, etc. controlled by the microcomputer based on the input information from the input circuit device are also provided. As described above, it is more complicated than a cooker that is not of the microcomputer control type, and the operation inspection at the manufacturing stage also requires many steps and is complicated. In addition, the clock means is generally equipped with a backup power supply circuit to operate the microcomputer so that the current time does not disappear even if the plug is unplugged, and the hand movement is continued. The current time is shipped together.

[0005]

In such a microcomputer-controlled cooker, it is necessary to perform an inspection that requires a number of steps in manufacturing and to set the current time of the clock means, but it has to rely on manpower.

Therefore, it takes time for inspection and time adjustment,
It was too expensive to manufacture and could not be offered to consumers at low cost. In addition, relying on many inspection processes manually has a possibility of being overlooked, and there is a limit in terms of quality and reliability of the cooking device provided to consumers.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is provided with a communication means for exchanging data between a microcomputer and the outside, and a plurality of input circuit devices are provided through this communication means. Via the communication means, the input state transmitting means for transmitting the input information to the outside, the current time receiving means for receiving the current time signal transmitted from the outside through the communication means, and adjusting the current time of the clock means, Output operation means for operating one output circuit device or a combination of a plurality of output circuit devices in response to reception of specified data transmitted from the outside is provided, and the communication means is used as an input status inspection device / reference clock device / It was connected to the output inspection device.

[0008]

With the above construction, the communication means of the cooking device is connected to the personal computer of the testing device in which the input status inspection device, the reference clock device, and the output inspection device are incorporated as a program in the final inspection process of the cooking device. Then, the input state transmitting means of the cooker and the input state inspection device of the personal computer operate to sequentially transmit each input information from the input circuit device to the personal computer side. The personal computer judges whether or not each input information of the input circuit that has been sent is a pass value, and if it fails, displays the details of the failure on the screen and automatically inspects the wiring and operating status of the input circuit device. It

In the case of passing, the current time receiving means of the cooker and the reference timepiece device of the personal computer further operate, and the current time data is transmitted from the reference timepiece device of the personal computer to the current time receiving means, and the current time of the clock means of the cooker. And the hand movement operation is started, and the time of the clock is automatically adjusted.

Next, the output operation means of the cooking device and the output inspection device of the personal computer operate, and one or a combination of heater and motor output circuit devices are sequentially operated according to the specified data transmitted from the personal computer. A power meter connected to the power source to which the cooker is connected sends power consumption to the PC and determines if it matches the power consumption according to the specified data sent from the PC. Displayed on the screen, the connection and operation status of the output circuit device is automatically inspected.

As described above, since the cooking device and the inspection device are connected by the communication means and the inspection and the current time are automatically adjusted, a large number of inspection processes can be completed in an instant without requiring human labor, so that the manufacturing cost is reduced. High quality
It becomes a reliable cooker.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

1 and 2, reference numeral 1 is a main body. Two
Is an inner pot housed inside the main body 1, and is heated by a bottom heater 3 provided on the bottom surface of the main body inner wall 9 and a side heater 4 provided on the side surface of the main body inner wall 9. Reference numeral 5 is a lid portion in which a lid heater 6 and a lid temperature sensor 27 are provided.
The upper openings of the main body 1 and the inner hook 2 are openably and closably covered. 8
Is a circulation fan that is rotated by a motor 7 and blows air, and circulates air in a space provided on the lower side surface of the inner wall 9 of the main body and formed by the inner kettle 2 and the inner wall 9 of the main body to enhance a side surface heating effect of the inner kettle 2. Is working. Reference numeral 10 denotes a panel portion provided on the front surface of the upper portion of the main body 1, which has an operation portion 11, a display portion 12 and a connection terminal 32, and a sheet 13 is attached to the entire surface. Reference numeral 19 is a control portion provided directly below the panel portion 10, and 26 is a bottom temperature sensor provided so as to come into contact with the bottom portion of the inner pot 2.

In FIG. 3, reference numeral 14 is an output circuit device. The contact A15 is connected to the bottom heater 3, the contact B16 is connected to the side heater 4, the contact C17 is connected to the lid heater 6, and the contact D18 is connected to the motor 7. The contacts A15 to D18 are operated by a command of a program of the microcomputer 20 provided in the control unit 19.

Reference numeral 22 is a stabilized power supply circuit for converting the commercial power source introduced through the plug 21 into DC power for the microcomputer 20, and 23 is a backup power circuit for supplying power to the microcomputer 20 even if the plug 21 is removed. is there.

A timer means 24 and a clock means 25 are programmed in the microcomputer 20, and even if the plug 21 is removed by the backup power supply circuit 23, the clock means 2
The current time hand movement operation of No. 5 is continued.

Reference numeral 26 is a bottom temperature sensor for contacting the bottom of the inner pot 2 to measure the temperature of the inner pot 2, and 27 is a lid temperature sensor provided inside the lid 5 for measuring the temperature of the lid 5.
Reference numeral 8 is a voltage sensor for measuring the voltage of the commercial power source, and 29 is a frequency sensor for measuring the frequency of the commercial power source.

Reference numeral 30 denotes an input circuit device which is composed of the sensors 26 to 29 and the operating section 11 and inputs various information to the microcomputer 20.

Reference numeral 31 is a communication means provided in the microcomputer 20, and is connected to a connection terminal 32 provided near the panel section 10.

The microcomputer 20 is provided with an input state transmitting means 33, a current time receiving means 34, and an output operating means 35 as a program.

Reference numeral 36 denotes an inspector, which is an input status inspection device 40,
The reference clock device 41 and the personal computer 39 in which the output inspection device 42 is programmed are connected to the connection terminal 32 of the cooking device via the communication device 37. 38 is a plug 2 of the cooking device
The power consumption of the cooking device is transmitted to the personal computer 39 by the power meter connected to the inspection cooking device power supply 43 into which 1 is inserted.

The operation of this embodiment having the above structure will be described.

The cookers assembled in the factory production line are finally inspected.

First, the communicator 37 of the inspector 36, which is in a standby state for communication when a start signal (for example, a numerical value 60) is set in the communicator 37 in response to a command from the personal computer 39, is connected to the connection terminal 32 of the cooker. .

Next, when the inserting plug 21 of the cooking device is inserted into the inspection cooking device power source 43 of the inspecting device 36, power is supplied from the stabilized power source circuit 22 to the control unit 19, and at the same time, the power source frequency ( 50Hz or 6
A signal synchronized with 0 Hz) is input to the microcomputer 20. Accordingly, the microcomputer 20 detects that it is connected to the power source and operates the communication means 31. As a result, when the activation signal 60 is transmitted from the communication device 37, the microcomputer 20 shifts to the program operation of the input state transmission means 33. Here, to explain the operation when used by ordinary consumers,
When the plug 21 is inserted into the commercial power supply, the microcomputer 20 operates the communication means 31 in the same procedure as described above, but since the communication means 31 of the inspection device 36 is not connected, the activation signal 60 cannot be obtained and the input state is obtained. It does not shift to the operation of the transmission means 33 but shifts to a normal consumer use operation.

When the input state transmission means 33 operates upon receiving the activation signal, information from each of the bottom temperature sensor 26, the lid temperature sensor 27, the voltage sensor 28, and the frequency sensor 29 and the switch state of the operation unit 11 are input. The input state of the circuit device 30 is digitized and transmitted to the communication device 37 one by one using the communication means 31. Then, the personal computer 39 switches to the program operation of the input status inspection device 40, judges the input state from the numerical value sent via the communication device 37, and displays the result of comparison with a predetermined pass value on the screen of the personal computer 39. To do. When the inspection of the input status is completed, the operation of the reference timepiece device 41 is automatically replaced, and the personal computer 39 sets the numerical data of the present time in the communication device 37. After the operation of the input state transmission means 33 is completed, the microcomputer 20 shifts to the operation of the current time reception means 34, and the communication means 31 receives the data sent from the communication device 37. The current time is known from the received numerical data and the time is set in the clock means 25 to start the hand movement operation.

Further, the microcomputer 20 uses the output operation means 35.
And the contact A15 of the output circuit device 14 is turned on.
Then, the energization of the bottom heater 3 is started. At the same time, the communication means 31 transmits numerical data to the communicator 37, which means that the contact A15 is operated. The personal computer 39 has shifted to the operation of the output inspection device 42 after the reference clock device 41 has transmitted the current time, and when the communication device 37 receives the operation data of the contact A15, it reads the pointer of the power meter 38 (the power meter 38 and the personal computer). Data is also exchanged between 39), and the result of comparison with a predetermined power passing value of the bottom heater 3 is displayed on the screen of the personal computer 39. Next, the personal computer 39 transmits numerical data indicating that the electric power of the bottom heater 3 has been read to the communication means 31 via the communication device 37. Receiving this, the microcomputer 20 turns off the contact A15 and turns off the contact B1.
Turn on 6. After that, the contact C17 and the contact D18 are sequentially operated one by one in the same procedure, and these combinations are also operated, and the pointer of the power meter 38 is read each time, and the result is displayed by comparing it with the power passing value. When all combinations are completed, the microcomputer 20 of the cooking device shifts to a normal consumer use operation. Of course, the clock means 25 continues the hand movement operation from the set current time during this period.

As described above, all the results are displayed in a list on the screen of the personal computer 39 on which the operation of the series of input status inspection device 40, reference clock device 41, and output inspection device 42 has been completed. I know what failed. That is, if there is a defect in the control unit 19 or there is a connection error in the contacts A15 to D18 in the manufacturing stage, the input status may not fall within the acceptable range, or the power value of the output inspection may not fall within the acceptable value. , Can be identified as rejected. The accepted product is packaged and shipped with the sheet 13 attached to the panel portion 10 so that the connection terminals 32 cannot be seen from the outside.

[0029]

As described above, according to the present invention, data is exchanged between the microcomputer and the personal computer through the communication means of the cooking device and the communication device of the inspecting device to inspect the input status from the cooking device and the clock of the cooking device. Since all output (power consumption) inspections can be performed automatically by adjusting the current time of the method, the inspection can be completed in a much shorter time than the conventional method that was performed manually, and the reliability of inspection and time adjustment can be improved. Since there is no human intervention, there is no error or oversight, the manufacturing cost is reduced, and a microcomputer-controlled cooker with high quality and reliability is provided.

[Brief description of drawings]

FIG. 1 is a perspective view of a microcomputer-controlled cooker showing an embodiment of the present invention.

FIG. 2 is likewise a sectional view.

FIG. 3 is likewise a block diagram showing connection of main parts.

[Explanation of symbols]

 10 panel section 11 operation section 12 display section 13 sheet 14 output circuit device 19 control section 20 microcomputer 24 timer means 25 clock means 28 voltage sensor 29 frequency sensor 30 input circuit device 31 communication means 32 connection terminal 33 input state transmission means 34 current time Reception means 35 Output operation means 36 Inspection device 37 Communication device 39 Personal computer 40 Input status inspection device 41 Reference clock device 42 Output inspection device

Claims (6)

[Claims] 1. A microcomputer-controlled cooker comprising a microcomputer (20) for controlling cooking operation, wherein the microcomputer (2
0), an input circuit device (30), and a communication means (31) for exchanging data between the microcomputer (20) and the outside.
And an input state transmission means (33) for transmitting a plurality of input information from the input circuit device (30) to the outside via the communication means (31). . 2. The microcomputer (20) has a timer means (24) for reserving cooking time and a clock means (2) for moving the current time as a reference for operating time of the timer means (24).
5) and a current time receiving means (34) for receiving the current time signal transmitted from the outside through the communication means (31) and adjusting the current time of the clock means (25). The microcomputer-controlled cooker according to claim 1. 3. A microcomputer (20), an output circuit device (14) for connecting a plurality of loads, and the communication means (31).
And an output operating means (35) for operating one of the output circuit devices (14) or a combination of a plurality of output circuit devices (14) in response to reception of specified data transmitted from outside via The microcomputer-controlled cooker according to claim 1, wherein: 4. The communication means (31), an input status inspection device (40) and a communication device (37) for judging whether a signal sent from the input status transmission means (33) is within a predetermined acceptable value range. ), The microcomputer-controlled cooker according to claim 1 or 3, wherein 5. The communication means (31) is connected to a reference clock device (41) for transmitting the current time via a communication device (37). Microcomputer-controlled cooker. 6. The communication means (31) is connected via a communication device (37) to an output inspection device (42) for judging whether or not the power consumption of a plurality of loads is within a predetermined acceptable value range. The microcomputer-controlled cooker according to claim 1 or 3, characterized in that.