JP4443312B2 - Dishwasher / dryer with built-in demo mode function - Google Patents

Description

  The present invention relates to a dishwasher / dryer incorporating a microcomputer having a storefront demonstration mode function.

  For the dishwasher / dryer, in order to explain and appeal the various functions to the user, a dishwasher / dryer for storefront demonstrations with a storefront demonstration function (hereinafter sometimes referred to as “storefront demo”) is dedicated. Prepared. In addition, since there is no water supply / drainage facility at the storefront, as the operation performed in the storefront demo mode, there are usually provided an injection operation and a dedicated operation for confirming the key operation and the display operation.

2. Description of the Related Art Conventionally, an example of heating stop control in a heating cooker has been proposed as a storefront demo mode program built in a microcomputer and capable of executing a storefront demo mode operation by a special key operation. That is, in a heating cooker that controls a microcomputer by an input signal from a keyboard and controls a heating means by an output signal of the microcomputer, in response to inputting a plurality of specific function keys on the keyboard, the heating stop means Has been proposed to stop only the heating means (Patent Document 1). In a storefront demonstration in which a plurality of heating cookers are arranged side by side, when the power supply capacity is insufficient, the power supply to only the heating means is cut off, and the storefront demonstration can be continued. In this case, since the storefront demo mode operation is canceled when the set is turned off, it is required to perform the special key operation again in order to resume the storefront demo mode operation.
Japanese Utility Model Publication No. 3-17134 (page 2, column 3, line 1 to column 4, line 13, FIG. 3)

Also, once in store, when the special sales promotion mode is entered under special operation, when the power is turned off and then turned on again, it is possible to enter the special sales promotion mode without special operation. A cooker has been proposed (Patent Document 2). Store in the non-volatile memory that the mode has been switched to the storefront demo mode, and when turning on the power again after turning off the power, the storefront demo is immediately performed without any special operation (by simple operation) based on the storage of the special operation in the non-volatile memory. By making it possible to shift to the mode, the troublesome transition to the special sales mode is solved. Since there is no need to distinguish between cookware for store demos and cookers for sale, it is possible to clear the non-volatile memory based on another special operation and switch to store demo mode at home when actually selling. I am trying not to.
JP-A-5-33944 (paragraphs [0014] to [0018], FIG. 4)

A system in which the above two methods can be selected at the time of production, that is, a system that automatically shifts to the storefront demo mode when the power is turned on after the power is turned off after switching to the storefront demo mode in the cooker having the storefront demo mode. It has been proposed that a production line can be selected as to whether or not the system needs to be specially operated again (Patent Document 3). That is, when the first data indicating that the store demo mode setting operation has been performed and the second data indicating that the first data is used are stored in the nonvolatile memory at power-on, no special operation is required. Control is performed so as to shift to the storefront demo mode, and if the second data that the first data is not used is stored, the storefront demo mode is not switched unless the setting operation of the storefront demo mode is performed. Control is done.
JP-A-7-19488 (paragraphs [0014] to [0022], FIG. 3)

  In addition, a conventional cooker having a storefront demo mode function has a method using a changeover switch. However, this method increases the number of parts such as a changeover switch and increases the manufacturing cost. By providing this, the storefront demo mode was automatically operated after the power was turned on.

Unlike dish cookers, dishwashers and dryers for in-store demonstrations use special parts such as acrylic plates instead of doors so that the interior of the set can be seen at all times. Therefore, the dishwasher / dryer for store demonstrations is handled as a dedicated machine for store demonstrations and not for sale to general consumers. If a dedicated machine for shop demonstration including a circuit equipped with a microcomputer that controls cleaning and drying is manufactured, it is not necessary to make settings by operating special keys every time the power is turned on. As a result, the manufacturing cost increases as a whole. If the above circuit is not differentiated between a commercial product and an in-store demo machine, an over-the-counter demo switching input will be added to the commercial dishwasher / dryer. Up is inevitable. In addition, there is a problem that if an operation of a storefront demo switching input is required, it may easily cause an erroneous operation or malfunction.

As for the dishwasher / dryer for the storefront demo, it is sufficient that the operation necessary for the storefront demo is performed, and it is not necessary to have all the functions for commercial use. Therefore, with regard to control circuit components, focusing on the fact that there is a function that can be provided in a dishwasher / dryer for a storefront demonstration compared to a commercial dishwasher / dryer, a part of the circuit corresponding to such a function It should be solved by making the control circuit components automatically distinguish and recognize the dishwasher / dryer for over-the-counter demos and the commercial dishwasher / dryer as processing by software. There are challenges.

  The object of the present invention has been made in consideration of the above-mentioned problems, and circuit components to be mounted on a substrate when it is assumed to be a commercial product while using the same control board manufacturing process as a commercial product. By not implementing partly, it is possible to reduce the cost of the dishwasher / dryer for storefront demonstrations and realize a dishwasher / dryer dedicated for storefront demos.

In order to solve the above-described problems, a dishwasher / dryer with a storefront demonstration mode function according to the present invention operates under the control of a control unit equipped with at least one microcomputer, and in that operation, the washing from the nozzle to the tableware or the like is performed. A dish washer / dryer that sprays water to wash dishes and displays an operation state including the washing on a display device, wherein the control unit includes control sequence data for controlling a normal operation of dish washing and drying . it is possible to mount the nonvolatile memory is a storage means for storing part, wherein the control unit includes a memory mounted determination means for determining whether the non-volatile memory is mounted when the power is turned on, When the memory mounting determination unit determines that the nonvolatile memory is mounted, the dishwasher / dryer Performing normal operation of the dishwasher using sequence data, and when the memory mounting determination means determines that the nonvolatile memory is not mounted, the dishwasher dryer is the display device, It is characterized by performing an operation exclusively for the storefront demonstration mode in which only the operation of ejecting the nozzle is performed.

According to the dishwasher / dryer with a built-in storefront demonstration mode function, if the memory mounting determination means provided in the control unit determines that the nonvolatile memory is not mounted, for example, when the power is turned on, the microcomputer sets the dishwasher / dryer. Operate in store demonstration mode. When the memory loading determination means determines that a non-volatile memory is installed, the microcomputer recognizes the dishwasher as a commercial dishwasher and operates in the normal mode as a commercial dishwasher. Let

Further, the dishwasher / dryer with a storefront demonstration mode function according to the present invention operates under the control of a control unit equipped with at least one microcomputer, and in the operation, the washing water is sprayed from the nozzle to the tableware or the like. A dishwasher / dryer for displaying the operating state including the washing on the display device, wherein the control unit is equipped with a first microcomputer for controlling the display device , and is used for dishwashing other than the display device control. and can be mounted to the second microcomputer for dry operation control, the first microcomputer, a microcomputer determines whether the second microcomputer is mounted - with the motor mounting determination unit, the microcomputer - data loaded determination means determines that the second microcomputer is not Tei mounted Case, the first microcomputer is characterized by performing the operation of the dishwasher dryer the display device displaying the demonstration mode operation only dishwashing dryer performs control only.

  According to the dishwasher / dryer with a built-in store demonstration mode function, the first microcomputer includes the microcomputer mounting determination means for determining whether or not the second microcomputer is mounted. For example, when the power is turned on, the second microcomputer for controlling the dish washing / drying operation other than the display control is not mounted according to the determination of the microcomputer mounting determination means based on the communication between the microcomputers. When it is determined that only the microcomputer is installed, the dishwasher is executed in the display demo mode. When it is determined that the second microcomputer is mounted, normal operation is performed.

Furthermore, a dishwasher / dryer with a storefront demonstration mode function according to the present invention operates under the control of a control unit equipped with at least one microcomputer, and in the operation, the washing water is sprayed from the nozzle to the tableware or the like. A tableware washing and drying machine for washing tableware and displaying an operation state including the washing on a display device, wherein the control unit is equipped with a first microcomputer for nozzle control and is used for tableware washing and drying other than the nozzle control. and can be mounted a second microcomputer for controlling the operation, the first microcomputer, a microcomputer determines whether the second microcomputer is mounted - with the motor mounting determination unit, the microcomputer - data mounted determination means determines that the second microcomputer is not Tei mounted Case, the first microcomputer is characterized by performing the operation of the dishwasher dryer of the nozzle control washing water jetting demonstration mode operation only dishwashing dryer that performs only.

According to this dishwasher / dryer with a built-in storefront demo mode function, the first microcomputer includes the microcomputer mounting determination means for determining whether or not the second microcomputer is mounted. For example, when the power is turned on, according to the determination by the microcomputer mounting determination means based on the communication between microcomputers, the second microcomputer for controlling the dish washing and drying operation other than the nozzle control is not mounted, that is, the dish washing water is jetted . When it is determined that only the first microcomputer for controlling the nozzle is installed, the dishwasher / dryer is executed in the dishwashing water jet demonstration mode. When it is determined that the second microcomputer is mounted, normal operation is performed.

  The memory loading determination means or the microcomputer loading determination means is a nonvolatile memory or a nonvolatile memory that responds to a data signal transmitted when the microcomputer or the first microcomputer is activated or an acknowledge signal from the second microcomputer. It can be determined whether or not the second microcomputer is mounted. When the microcomputer is activated, in order to confirm the normal operation of the system, a data signal for confirming the existence of other components such as other microcomputers, peripheral devices, and mounted parts is transmitted. If there is an acknowledge signal in response to the data signal, it is confirmed that the component is mounted. By using the presence / absence of the acknowledge signal, it is possible to confirm whether or not some of the components are not mounted for a store demonstration.

  As described above, when the dishwasher / dryer according to the present invention is used as a dishwasher / dryer dedicated to a storefront demonstration, it can be realized by mounting only a minimum microcomputer necessary for executing the storefront demonstration operation. Non-volatile memories that can store sequence data for dishwashers and microcomputers that perform functions related to tableware washing and drying other than storefront demonstration operations are required for commercially available dishwashers, so they are used as substrates. However, since it is not necessary to install the dishwasher / dryer for store demonstration, the parts cost and the manufacturing cost can be reduced accordingly. In addition, at the storefront, the storefront demonstration operation is performed without any special key operation or switch switching, so there is no need for troublesome work, and normal operation is performed by mistake, such as heater energization and drainage operation. There is no dangerous behavior as an over-the-counter demonstration. Furthermore, in the present invention, when the nonvolatile memory or the microcomputer breaks down at the user's house, these parts are in a state equivalent to non-mounting, and as a result, it is determined that the set of abnormal operations cannot be assumed. Therefore, safety is improved because it is simply changed to a safe storefront demonstration operation.

  Hereinafter, an embodiment of a dishwasher / dryer with a built-in storefront demo mode function according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic block diagram showing an embodiment of a dishwasher / dryer with a built-in store demo mode function according to the present invention.

As shown in FIG. 1, the dishwasher / dryer includes a microcomputer 11 that controls the washing and drying of dishes, a power supply circuit 12 that supplies power to the microcomputer 11, and a control from the microcomputer 11. Display device 13 for displaying the operation state, input means 14 such as a key for inputting a command to the microcomputer 11, various relays 15 for controlling the operation state of the dishwasher by control from the microcomputer 11, a dishwasher Various sensors 16 that detect the operating state of the computer and transmit detection signals to the microcomputer 11, a part of the control sequence data of the dishwasher is stored, and non-volatile that exchanges signals with the microcomputer 11 It consists of an EEPROM 17 as a memory. In the example shown in FIG. 1, the EEPROM 17 is not mounted in the dishwasher / dryer for shop demonstration. In this embodiment, the control unit is a one provided with a microcomputer 11, Memory mounting determination unit 18 is provided in the microcomputer 11. As a basic operation of the dishwasher / dryer, washing water is sprayed from the nozzles onto the tableware and the like to wash the dishes, and the operation state including the washing is displayed on the display device 13. Here, “mounting” a component on a circuit board has the same meaning as “surface mounting” in which electronic components are directly soldered to the substrate, and is synonymous with fixed mounting on the circuit board. is there.

FIG. 3 is a flowchart showing a control operation of the dishwasher / dryer shown in FIG. After the power is turned on, the microcomputer 11 is first initialized (step 1, abbreviated as “S1”, the same applies hereinafter). Next, the reading operation of data recorded in the EEPROM 17 is started (S2). The microcomputer 11 recognizes whether or not the EEPROM 17 is mounted (S3). When the microcomputer 11 recognizes that the EEPROM 17 is mounted by the memory mounting determination means 18, it performs a normal operation (S4), and when it recognizes that the EEPROM 17 is not mounted, it performs a storefront demo operation (S5). ).

  FIG. 4 is a signal line diagram showing a signal example of the 2-wire serial communication system. FIG. 4 shows a timing example of SCL (serial clock signal) and SDA (serial data signal). In the case of the two-wire serial communication system as shown in FIG. 4, if EEPROM 17 (FIG. 1) exists (or operates normally), start of 8-bit data from microcomputer 11 (FIG. 1). After the bit is output, an acknowledge signal is output from the EEPROM 17. Therefore, the recognition of whether or not the EEPROM 17 is mounted (or operating normally) depends on whether or not the microcomputer 11 recognizes the acknowledge signal within a certain time. ) Or not. If the EEPROM does not output an acknowledge signal, data at a specific address can be read, and if the data is different, it can be determined that the EEPROM is not mounted.

  FIG. 2 is a schematic block diagram showing another embodiment of the dishwasher / dryer with a built-in store demo mode function according to the present invention. The dishwasher / dryer shown in FIG. 2 includes a display control microcomputer 21 that controls display / key control of the dishwasher / dryer and an injection control microcomputer 22 that controls sequence control. Here, “injection” refers to injection of a cleaning liquid or cleaning water from a nozzle in order to clean tableware. The injection control microcomputer 22 receives power supply from the power supply circuit 23, receives detection signals from various sensors 27, and outputs control signals to various relays 26 for cleaning and drying sequences of dishes. The display control microcomputer 21 is supplied with electric power from the power supply circuit 23, receives an input signal from an input means 25 such as a key, and outputs a display control signal to the display device 24.

  When the display control microcomputer 21 is not mounted, the microcomputer mounting determination means 29 in the ejection control microcomputer 22 determines that the display control microcomputer 21 is not mounted. In accordance with this determination, the injection control microcomputer 22 executes an injection demonstration, so that the dishwasher / dryer functions as a dishwasher / dryer for the injection demonstration. When the injection control microcomputer 22 is not mounted, the microcomputer mounting determination means 28 in the display control microcomputer 21 determines that the injection control microcomputer 22 is not mounted. Such a determination can be made using a dedicated signal between dedicated ports between microcomputers or a constant communication data signal between normal ports when the dishwasher is started up. In accordance with this determination, the display control microcomputer 21 executes a display demonstration, so that the dishwasher / dryer functions as a dishwasher / dryer for display demonstration.

Figure 5 is a flow chart showing the control operation of the dishwasher drying machine shown in FIG. After power-on, after microcomputer initialization processing (S11), communication processing with microcomputer 22 (FIG. 2) other than display control is started (S12), and it is determined whether there is a response (S13). . If there is a response, normal operation is performed (S14), and if there is no response, the microcomputer 22 other than the display device control is not implemented, so only the display by the display device control microcomputer 21 is switched in response to the key operation. A display demonstration operation is performed (S15). Whether a response to the microcomputer 22 other than the display device control, if there is a signal line indicating a communication request, the display device control micro computer 21 can be determined by monitoring the signal a certain time. That is, when an RDY signal as a communication timing signal from the microcomputer 22 to the microcomputer 21 is input, if the microcomputer 22 is in a receivable state as Hi, this Hi signal is monitored, and the Hi signal Communication is started by confirmation. On the other hand, when the Lo signal is continuously received over a certain period on the microcomputer communication, it can be determined that the microcomputer 22 does not exist (or malfunctions).

  When there is no signal line indicating a communication request or when the other party's response is unknown due to serial communication, etc., there is no other party's microcomputer by using fixed data in part of the communication data for normal communication. In this case, it can be determined using the fact that this fixed data cannot be received. That is, when there is no communication request signal line using the above RDY signal, serial communication using the hardware of the microcomputer is used, but the CLK from the master-side microcomputer 21 is used. In synchronization with the signal, the master side transmits a TXD signal, and the slave side transmits an RXD signal. In this case, communication is possible even if the slave-side microcomputer 22 is not present (the RXD signal does not change and is always the same signal), but it cannot be distinguished from the original data. Fixed data (which also serves as a check for data corruption caused by noise) is added to communication data. By always using this fixed data for normal communication, it can be determined that the slave-side microcomputer 22 is present when the fixed data is received, and when the fixed data is not received, the slave-side microcomputer is used. It can be determined that 22 is not present.

  FIG. 6 is a flowchart showing the operation of the ejection control microcomputer of the dishwasher. After the power is turned on, the microcomputer initialization process (S21) is started, and communication processing with the microcomputer 21 other than the ejection control is started. Then, it is determined whether there is a response (S23). If there is a response, normal operation is performed (S24). If there is no response, since the microcomputer 21 other than the injection control is not implemented, an injection demonstration operation for performing only injection periodically is performed (S25). The presence or absence of a response with the microcomputer 21 other than the injection control can be performed in the same manner as described above.

The schematic block diagram which shows one Example of the commercial dishwasher by this invention. The schematic block diagram which shows another Example of the commercial tableware washing dryer by this invention. The flowchart which shows operation | movement regarding the tableware washing dryer shown in FIG. Signal example of 2-wire serial communication system. The flowchart which shows the microcomputer operation for display control regarding the tableware washing dryer shown in FIG. The flowchart which shows operation | movement of the microcomputer for jet control regarding the tableware washing dryer shown in FIG.

Explanation of symbols

11 Microcomputer 12, 23 Power supply circuit 13, 24 Display device 14, 25 Input means 15, 26 Various relays 16, 27 Various sensors 17 EEPROM (non-volatile memory)
DESCRIPTION OF SYMBOLS 18 Memory mounting determination means 21 Display control microcomputer 22 Injection control microcomputer 23 Power supply circuit 24 Display device 25 Input means 26 Various relays 27 Various sensors 28 Microcomputer mounting determination means 29 Microcomputer mounting determination means

Claims (5)

Tableware that operates under the control of a control unit equipped with at least one microcomputer, in which the washing water is sprayed from the nozzle onto the tableware to wash the tableware, and the operation state including the washing is displayed on the display device. A washing and drying machine,
Wherein the control unit is capable of mounting a non-volatile memory is a storage means for storing a part of the control sequence data for controlling the normal operation of the dishwashing drying,
The control unit includes a memory mounting determination unit that determines whether or not the nonvolatile memory is mounted when power is turned on,
When the memory mounting determination means determines that the nonvolatile memory is mounted, the dishwasher performs normal operation of the dishwasher using the sequence data,
When the memory mounting determination means determines that the nonvolatile memory is not mounted, the dishwasher / dryer performs an operation exclusively for the storefront demonstration mode in which only the display device and the nozzle spray operation are performed. A dishwasher with a built-in store demonstration mode.   The memory mounting determination means determines whether or not the nonvolatile memory is mounted based on the presence or absence of an acknowledge signal from the nonvolatile memory that responds to a data signal transmitted when the microcomputer is started up when the power is turned on. The dishwasher / dryer with a built-in store demonstration mode function according to claim 1. Tableware that operates under the control of a control unit equipped with at least one microcomputer, in which the washing water is sprayed from the nozzle onto the tableware to wash the tableware, and the operation state including the washing is displayed on the display device. A washing and drying machine,
The control unit is equipped with a first microcomputer for controlling a display device, and can be equipped with a second microcomputer for controlling a dish washing and drying operation other than the display device control,
The first microcomputer includes microcomputer mounting determination means for determining whether or not the second microcomputer is mounted.
When the microcomputer mounting determination means determines that the second microcomputer is not mounted, the first microcomputer performs a display demonstration mode in which only the display device control of the dishwasher is performed. A dishwasher / dryer with an in-store demonstration mode function, which operates a dedicated dishwasher / dryer. Tableware that operates under the control of a control unit equipped with at least one microcomputer, in which the washing water is sprayed from the nozzle onto the tableware to wash the tableware, and the operation state including the washing is displayed on the display device. A washing and drying machine,
The controller is equipped with a first microcomputer for nozzle control, and can be equipped with a second microcomputer for controlling dish washing and drying operations other than the nozzle control,
The first microcomputer includes microcomputer mounting determination means for determining whether or not the second microcomputer is mounted.
When the microcomputer mounting determination means determines that the second microcomputer is not mounted, the first microcomputer performs a cleaning water injection demonstration that performs only the nozzle control of the dishwasher. A dishwasher / dryer with a built-in storefront demonstration mode function, which operates the dishwasher / dryer exclusively for mode operation.   The microcomputer mounting determination means includes the second microcomputer depending on the presence or absence of an acknowledge signal from the second microcomputer that responds to a data signal transmitted when the first microcomputer is started up when the power is turned on. The dishwasher / dryer with a built-in store demonstration mode function according to claim 3 or 4, wherein the dishwasher / dryer has a built-in storefront demonstration mode function.

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