JP2000171080A - Controlling device setting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and accurately allocate the function of a switching element by sending a data to the switching element according to the ID code of the detected switching element, and by detecting the operation of a switching means for allocating the function to the switching element. SOLUTION: A controller requests an ID from switching elements 28A-28E, and the entire switching elements 28A-28E correspond to the request for returning own ID codes to the controller. Then, the controller sends an ON/OFF data to a signal line 22 with each ID code of the switching elements 28A and 28B corresponding to a compressor 13 and a fan 7 inside a refrigerator, and activates the compressor 13 and the fan 7 for starting cooling operation. After that, when temperature due to temperature data is increased after fixed time, the controller allocates a function where the sensor of the ID is set to a high- temperature sensor for storing into a memory.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a setting system of a control device used in, for example, a commercial / home refrigerator, a low-temperature showcase, a prefabricated refrigerator, an air conditioner, a vending machine, and the like.

[0002]

2. Description of the Related Art Conventionally, for example, a commercial refrigerator incorporates a compressor, a condenser, a cooler and the like constituting a cooling device, or a compressor and a condenser are separately provided, and a refrigerant discharged from the compressor is provided. Is condensed in a condenser and depressurized by a decompression device, and then supplied to a cooler to exert a cooling effect. Cooling to low temperature.

In addition, frost formed on the cooler by the cooling operation is heated and melted by a defroster (defrost heater), and dew adhering by a cooling action is removed by heating by a dew-proof heater. On the other hand, a condenser fan is provided around the compressor and the condenser, and the condenser fan is air-cooled by the condenser fan.

In order to perform such various operation controls,
The refrigerator is equipped with a controller constituted by a microcomputer. Further, various sensors for detecting the temperature of the inside of the refrigerator, the cooler, and the condenser are mounted, and switches for controlling the operation of mounted components such as a compressor, a defroster, a dew-proof heater, and a fan in the refrigerator are also mounted. And the controller controls the operation of the mounting parts by each switch.

[0005]

In order to control the operation of the refrigerator, whether the switch controls, for example, the operation of a compressor, or controls the energization of a defroster, or It is necessary to assign a function such as whether to control the energization of the dew-proof heater to the controller. If an error occurs in the assignment setting, it becomes impossible to perform normal operation control of the refrigerator.

Conventionally, function assignment is performed by specifying a connection port to a controller for each function. However, when the number of switches is increased, the operation at the time of production becomes complicated, and connection to an incorrect port is performed. There was a greater danger of getting rid of them and improvements were being made.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional technical problem, and has a setting capable of easily and reliably assigning functions of switching elements constituting a control device of a device. System.

[0008]

SUMMARY OF THE INVENTION A setting system according to the present invention comprises a switching element for controlling the operation of a mounting part, a storage device, and a main control for controlling the switching element with reference to data written in the storage device. Means, the switching element controlling the switching means based on data from the transmitting / receiving means, a transmitting / receiving means for transmitting / receiving data to / from the main control means, and a switching means, a storing means having its own ID code. Applied to a control device having switching element side control means, means for detecting an ID code of the switching element, means for transmitting data to the switching element based on the detected ID code, and for operating the switching means Means for detecting the operation of the switching means and allocating a function to the switching element; The ID code allocated function and the switching elements in correspondence in which and a means for writing into the storage device.

According to a second aspect of the present invention, in the control device setting system, a plurality of switching elements are provided, data is sequentially transmitted to each switching element based on the detected ID code, and each switching means is sequentially operated. While detecting the operation of the switching means and assigning functions to the switching elements,
The storage device is characterized in that a data table in which each assigned function is associated with the ID code of the switching element is configured in the storage device.

According to the control device to which the present invention is applied, the switching element-side control means of the switching element controls the switching means based on the data from the main control means received by the transmission / reception means. It is possible to control the operation of the mounting part without the need.

In this case, the switching element has its own ID code in the storage means, and the setting system of the present invention detects the ID code of the switching element and, based on the detected ID code, assigns the ID to the switching element. Since the data is transmitted and the switching means is operated, the operation of the switching means is detected, a function is assigned to the switching element, and the assigned function is associated with the ID code of the switching element and written into the storage device. The main control means can identify the switching element and the function assigned thereto by referring to the data in the storage device.

As a result, the function of the connected switching element can be surely recognized without specifying the port at the time of connection, and the work of setting the function assignment is simplified, and the productivity of the equipment is remarkably increased. As well as improving the yield, the yield during production can be reduced.

According to the second aspect of the present invention, even when a plurality of mounting parts are provided and a plurality of switching elements are provided for each of them, the respective functions allocated in the storage device and the switching functions are provided. Since the data table corresponding to the element ID code is formed, the main control means can recognize the function of each switching element without error and can realize control of each mounting component without any trouble. is there.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic sectional view of a commercial refrigerator 1 as an embodiment of a device to which the present invention is applied, and FIG. 2 is a wiring diagram of an electric system of the refrigerator 1.

In FIG. 1, a refrigerator 1 has a main body 5 composed of a heat insulating box 2 opened to the front, and a storage room 3 formed in the heat insulating box 2. The front opening of the storage room 3 is closed by a door 4 so that it can be opened and closed. Also,
In the storage room 3, a cooler 6 constituting a refrigeration cycle of the cooling device and a fan 7 driven by a motor are installed.

A defroster (electric heater) 30 (FIG. 2) for defrosting is attached to the cooler 6, and a dew-proof heater 8 for preventing dew condensation is provided on the opening edge of the heat insulating box 2.
Is provided, and an operation panel 11 of a control box 9 as a main control means is attached to a front surface of the door 4.

On the other hand, a machine room 12 is formed below the heat insulating box 2, and in the machine room 12, together with the cooler 6, a compressor 1 constituting a refrigeration cycle of a cooling device.
3, a condenser 14, a condenser fan 16, and the like.

When the compressor 13 is operated, the high-temperature and high-pressure refrigerant discharged from the compressor 13 radiates heat in the condenser 14 to be condensed, decompressed by a decompression device (not shown), and then supplied to the cooler 6. Is done. In the cooler 6, the refrigerant evaporates and exerts a cooling function. Thereafter, the low-temperature gas refrigerant returns to the compressor 13 again. When the in-compartment fan 7 is operated, the cool air cooled by the cooler 6 is circulated into the storage room 3, whereby the storage room 3 is cooled.

When the condenser fan 16 is operated, outside air is passed through the condenser 14 and the compressor 13, so that the air is cooled. Further, the defroster 30 is energized every predetermined time or at a predetermined time. When the defroster 30 is energized, heat is generated and the cooler 6 is heated to perform defrosting. Furthermore, when the dew-proof heater 8 is energized, the opening edge of the heat-insulating box 2 is heated to prevent dew condensation.

Next, in FIG. 2, reference numeral 21 denotes an AC power supply line wired in the main body 5 of the refrigerator 1, and reference numeral 22 denotes a signal line for transmitting and receiving data. The AC power line 21 is connected to the compressor 13, the fans 7, 16 and the defroster 3.
0, while being connected to the drive substrate 26 of the dew-proof heater 8,
The control box 9 and the drive board 26 are connected to the signal line 22.

The signal line 22 has a chip-shaped internal temperature sensor 27 as a sensor for detecting the temperature in the storage room 3.
A chip-shaped defrost sensor 10 as a sensor for detecting the temperature of the cooler 6; a chip-shaped high-temperature sensor 20 as a sensor for detecting the temperature of the condenser 14; and a plurality of chips attached to the drive board 26 Switching elements 28A, 28B, 28C, 28D, 28E are connected via connectors.

Further, a memory 25 as a storage device is attached to the drive board 26, and is connected to the signal line 22. Further, a DC power supply 23 composed of a rectifier circuit is further attached to the drive board 26. This DC power supply 23
Is Vc from the commercial AC power supplied from the AC power line 21.
c power source (for example, DC + 5V), and
To the control box 9. The Vcc power generated by the DC power 23 is also supplied to the memory 25.

The drive board 26 has a switching element 2
8A, 28B, 28C, 28D, and 28E are provided for the compressor 13, the fans 7, 16, the defroster 30, and the dew-proof heater 8, respectively.

The structure of the control box 9 is shown in FIG.
Shown in The control box 9 is provided with a controller (substrate) 36. This controller 36
It comprises a CPU (microcomputer) 31, a memory 32 as storage means, an I / O interface 33, a bus I / O interface 34 as transmission / reception means, and the like. The control box 9 has a display 37 formed of a liquid crystal display panel, a switch 38 as input means (keyboard, mouse, etc.),
A switching device 39 or the like as switching means is provided. The display 37 and the switch 38 are connected to an I / O interface 33 and disposed on the operation panel 11.

The bus I / O interface 3
Reference numeral 4 is connected to the signal line 22 via the switch 39, and exchanges data with the temperature sensor 27 and the switching elements 28A, 28B, 28C, 28D, 28E via the signal line 22. An external laptop PC P (external control device) or the like can be connected to the switch 39 via a communication line 42. The switch 39 always connects the bus I / O interface 34 and the signal line 22, but when the personal computer P is connected, the bus I / O interface 34 (that is, the control box 9) is connected to the signal line 22. Then, the personal computer P is connected to the signal line 22.

The controller 36 includes the internal temperature sensor 27, the defrost sensor 10, the high temperature sensor 20, the switching elements 28A, 28B, 28C, 28D, 28E,
A predetermined communication protocol for performing data communication with the memory 25 and the personal computer P, and each sensor 27, 10, 20
And switching elements 28A, 28B, 28C, 28D,
Software and the like for searching for and identifying 28E are set. Each of the sensors 27, 1
0, 20 and switching elements 28A, 28B, 28C,
28D, 28E, a predetermined communication protocol for performing data communication with the memory 25 and the controller 36, the sensors 27, 10, 20 and the switching elements 28A,
It is assumed that software and the like for searching and identifying 8B, 28C, 28D, and 28E are set.

FIG. 4 shows the construction of the inside temperature sensor 27, the defrost sensor 10, and the high temperature sensor 20. still,
Since the sensors 27, 10, and 20 have the same configuration, the internal temperature sensor 27 will be described below. The internal temperature sensor 27 includes a CPU 43 as a sensor-side control unit, a memory 44 as a storage unit, and an I / O as a transmission / reception unit.
The interface 46, the A / D converter 47, and the A
It comprises a sensor unit 48 as a detecting element connected to the / D converter 47, a capacitor 49 as a power storage element, a diode 51 as a rectifying element, and the like.

In this case, the capacitor 49 is connected to the diode 5
1, and each element is connected to a connection point between the diode 51 and the capacitor 49. And
A potential (high potential) of, for example, +5 V is applied to the signal line 22, and data is composed of pulses that fall from the high potential to a low potential of 0 V, for example.

The internal temperature sensor 27 has Vcc (D
A power supply terminal 45 is provided, which is connected to a connection point between the diode 51 and the capacitor 49, and the Vcc power supply terminal 45 is connected to the DC power supply line 24. Thus, each element operates by power supply from the DC power supply line 24.

The Vcc power supply terminal 45 is connected to the DC power supply line 24.
Temperature sensor 27 is connected to the signal line 22
Is connected, power is supplied to each element as it is while the high-potential and low-potential pulse signals constituting the data are at the high potential, and the capacitor 49 is also charged. And
Since the capacitor 49 is discharged while the potential is low, as long as there is a pulse signal on the signal line 22, the power of each element is covered.

The CPU 43 fetches the temperature data detected by the sensor unit 48 via the A / D converter 47, and temporarily writes the data into the memory 44. Then, the controller 36 is connected to the controller 36 via the signal line 22 by the I / O interface 46.
, The temperature data written in the memory 44 is transferred to the signal line 2 by the I / O interface 46.
2 to the controller 36.

Here, the memory 44 has an internal temperature sensor 2
7 stores an ID code of itself, identification data indicating that the sensor is a sensor, set value data such as a low temperature / high temperature alarm temperature, a protocol for performing data communication with the controller 36, and the like. If a failure occurs in the internal temperature sensor 27, the failure data is also written to the memory 44 and transmitted to the controller 36.

Further, the memory 44 stores the sensor image data (display data) on the display 37 of the controller 36 and this image data on the display 3 of the controller 36.
7 stores software for display.

On the other hand, the switching elements 28A, 28
FIG. 5 shows the configuration of B, 28C, 28D, and 28E. still,
Each switching element 28A, 28B, 28C, 28D,
Since 28E has the same configuration, the switching element is represented by 28 in FIGS. 5 and 6. Switching element 28
Is a CPU 58 as a switching element side control means.
, A memory 59 as a storage unit, an I / O interface 61 as a transmission / reception unit, and an I / O interface as a driver.
An I / O interface 62, a transistor 63 as switching means connected to the I / O interface 62, a capacitor 64 as a power storage element, a diode 66 as a rectifying element, and the like.

In this case, the capacitor 64 is connected to the diode 6
6, and each element is connected to a connection point between the diode 66 and the capacitor 64. The switching element 28 is provided with a Vcc (DC + 5V) power supply terminal 55, which is connected to a connection point between the diode 66 and the capacitor 64. The Vcc power supply terminal 55 is connected to the DC power supply line 24. Thus, each element operates by power supply from the DC power supply line 24.

The Vcc power supply terminal 55 is connected to the DC power supply line 24.
, The switching element 28 is connected to the signal line 2
2, power is supplied to each element as it is while the high-potential and low-potential pulse signals constituting data are at the high potential, and the capacitor 64 is also charged. Since the capacitor 64 is discharged while the potential is low, the power of each element is covered as long as the signal line 22 has a pulse signal.

When ON / OFF data is transmitted from the controller 36 via the signal line 22 by the I / O interface 61, the CPU 58 turns ON / OFF the ON / OFF data.
The transistor 63 is turned on / off by the I / O interface 62 based on the F data. CPU5
8 indicates the current operating state (ON or OF) when ON / OFF data is not transmitted from the controller 36.
F) is self-holding.

Here, the memory 59 stores an ID code of each switching element 28 itself, identification data indicating that the switching element is a switching element, a protocol for performing data communication with the controller 36, and the like. If a failure has occurred in the switching element 28, the data is also written to the memory 59, and the controller 3
6 is sent.

Further, the memory 59 stores switching element image data (display data) to the display 37 of the controller 36 and this image data.
The software for displaying on the display 37 is stored.

Each switching element 28 is wired on the drive board 26 as shown in FIG.
8. That is, 69 is a photocoupler composed of a photodiode 69A and a phototriac 69B, 71 is a resistor, 72 is a diode as a rectifying element,
74 is a capacitor as a storage element.

In this case, the capacitor 74 is connected to the diode 7
2 is connected between the connection point of the diode 72 and the capacitor 74 and the collector terminal (indicated by S2 in FIG. 5) of the transistor 63 of the switching element 28.
1 and the photodiode 69A are connected in series. The terminal S1 (FIG. 5) of the switching element 28 is connected before the diode 72. The phototriac 69B is interposed between the AC power line 21 and the compressor 13, the fans 7, 15, the defroster 30, and the dew-proof heater 8, respectively.

A Vcc power supply terminal 60 is connected to a connection point between the diode 72 and the capacitor 74, and the Vcc power supply terminal 60 is connected to the DC power supply line 24. Thus, the photodiode 69A operates by power supply from the DC power supply line 24.

When the diode 72 is connected to the signal line 22, power is supplied to the photodiode 69A via the resistor 71 as long as the high-potential and low-potential pulse signals constituting data are at the high potential. The capacitor 74
Is also charged. While the potential is low, the capacitor 74 is discharged from the capacitor 74 to supply power to the photodiode 69A. Therefore, even if the Vcc power supply terminal 60 is not connected to the DC power supply line 24,
As long as there is a pulse signal, the switching unit 68 operates.

The memory 25 on the drive board 26 includes:
Each of the switching elements 28A, 28B on the drive substrate 26,
Data on the correspondence between the compressors 28C, 28D, and 28E, the compressor 13, the fans 7, 16, the dew-proof heater 8, and the defroster 30 is stored. In this case, the correspondence relationship is between the switching elements 28A, 28B, 28C, 28D, 2
8E ID code and compressor 13, each fan 7, 1
6. The memory 25 is stored in the memory 25 as a data table (FIG. 11) indicating the correspondence between the dew-proof heater 8 and the defroster 30, for example, with the attachment component code. Then, the controller 36 refers to the data table in the memory 25 shown in FIG.
To perform data communication with

The creation of the data table in the memory 25 is performed in an inspection process during the production of the drive board 26. 11 shows a setting device (jig) 81 used in the inspection process of the drive substrate 26 according to FIG. The setting device 81 is composed of a normal personal computer or the like, and has input / output ports PO and input ports corresponding to the compressor 13, the internal fan 7, the condenser fan 16, the dew-proof heater 8, and the defroster 30, respectively. PI1 to PI
5 are provided.

On the other hand, the switching elements 28A, 28B, 28C, 28D, 28E
And a photocoupler 69 (here, only the photocoupler is shown as a representative) which is connected to them and constitutes a switching unit.

The phototriac 69B of the photocoupler 69 connected to the switching element 28A is connected to the connection terminal 13P for the compressor 13 of the drive board 26, and the phototriac of the photocoupler 69 connected to the switching element 28B is connected. 69B is connected to the connection terminal 7P of the drive board 26 for the internal fan 7. The phototriac 69B of the photocoupler 69 connected to the switching element 28C is
The phototriac 69B of the photocoupler 69 connected to the switching element 28D is connected to the connection terminal 8P for the dew-proof heater 8 of the drive board 26. Furthermore,
Photocoupler 69 connected to switching element 28E
The phototriac 69B is connected to a connection terminal 30P for the defroster 30 of the drive board 26.

The drive board 2 pre-assembled as described above
6 is set in the setting device 81. Then, the switching elements 28A, 28B, 28C, 28D, 28E and the storage device 25 are connected to the input / output port PO using the same signal line 22 as described above. The connection terminal 13P is connected to the input port PI1, the connection terminal 7P is connected to the input port PI2, the connection terminal 16P is connected to the input port PI3, the connection terminal 8P is connected to the input port PI4, and the connection terminal 30 is connected.
Connect P to input port PI5.

After setting as described above, when the setting device 81 is started, the setting device 81 first uses the input / output port PO to switch the switching element 28A connected to the signal line 22,
Search the status of 28B, 28C, 28D, 28E.
In this case, the setting device 81 controls all the switching elements 28
A, 28B, 28C, 28D, 28E make an ID request. Switching elements 28A, 28B, 28C, 28
D and 28E return their ID codes and the like to the setting device 81, and the setting device 81 receives the ID code and the like from the input / output port PO, thereby switching the switching elements 28A, 28B, 28C, 28D, and 28E on the drive board 26. Recognize each ID code (for example, 0000-0004).

Next, based on the returned ID code, the setting device 81 determines, for example, the youngest ID code (eg, 00
00), ON / OFF data (in this case, ON data) is transmitted to the signal line 22 together with the ID code. A switching element that has received ON data together with its own ID code (at this time, 28A, 28B, 28
The CPU 58 of any of C, 28D, and 28E) turns on the transistor 63. When the transistor 63 is turned on, the photodiode 69A is turned on (emit light), whereby the phototriac 69B is turned on.

At this time, the switching element 28A
Assuming that the phototriac 69B of the photocoupler 69 connected to is turned on, the setting device 81 detects this from the input port PI1, and the function of the switching element 28A of the ID code turns the compressor 13 ON / OFF.
It is determined to be turned off. And the input / output port PO
Transmits data to the memory 25 via the signal line 22 from
The switching element 2 is located at the top of the data table in FIG.
8A-ID code (for example, 0000) -Compressor 1
As shown in FIG.

The setting device 81 transmits ON data to the signal line 22 together with, for example, a next younger ID code (for example, 0001), and similarly turns on one of the phototriacs 68B. In this case, the switching element 28
Assuming that the phototriac 69B of the photocoupler 69 connected to B is turned on, the setting device 81 detects this from the input port PI2, and the function of the switching element 28B of the ID code turns the internal fan 7 ON / OFF. O
It is determined that FF is performed. Then, data is transmitted from the input / output port PO to the memory 25 via the signal line 22, and the switching element 28B-ID code (for example, 0001) -the And write them in correspondence.

Hereinafter, the setting device 81 transmits the ID code 0002
0004 are sequentially transmitted, and a table corresponding to an ID code as shown in FIG. 11 is generated for the condenser fan 16, the dew-proof heater 8 and the defroster 30. The drive board 26 set in the memory 25 in this manner is removed from the setting device 81 and is actually mounted on the refrigerator 1.

The operation of the above configuration will now be described. First, it is assumed that the personal computer P is not connected to the switch 39, and the operation during production of the refrigerator 1 will be described. The controller 36 (CPU 31) first sends each element (sensors 27, 10, 20, switching element 28) to the signal line 22.
The connection status of A, 28B, 28C, 28D, 28E is searched.

In this case, the controller 36 controls all the sensors 27, 10, 20 and the switching elements 28A, 28
B, 28C, 28D and 28E make an ID request, and in response, all the sensors 27, 10, and 20 and the switching elements 28A, 28B, 28C, 28D and 28E
A D code or the like is returned to the controller 36. The controller 36 recognizes that the temperature sensor 27, the defrost sensor 10 and the high temperature sensor 20 are connected to the signal line 22 based on the returned ID code and the like.

Also, the returned ID code and the memory 25
, A switching element 28A for the compressor 13, a switching element 28B for the in-compartment fan 7, a switching element 28C for the condenser fan 16, a switching element 28D for the dew-proof heater 8,
It recognizes that each switching element 28 of the switching element 28E for the defroster 30 is connected.

The controller 36 recognizes the temperature sensors 27, 10, 20 and the switching elements 28A, 28B,
The connection status of 28C, 28D, and 28E is held in the memory 32, and data is transmitted to each element using the ID code.

The sensor image data in the respective memories 44 and software for displaying the sensor image data are uploaded from the sensors 27, 10, and 20 to the controller 36 via the signal line 22. Further, from each of the switching elements 28,..., The switching element image data in the respective memory 59 and software for displaying the switching element image data are transmitted to the controller 36 via the signal line 22.
Will be uploaded to.

The CPU 31 of the controller 36 uploads the uploaded sensor image data of the sensors 27, 10, and 20, and the switching elements 28A, 28B, 28C,
The switching element image data of 8D and 28E and software are stored in the memory 32.

Then, based on the recognition result, the controller 36 further displays windows W1 to W7 as shown in FIG. Switching elements (control I / O) 28 (partially omitted) are displayed side by side.

When any one of the sensors or the switching elements is removed from the signal line 22, the controller 36 deletes the corresponding window. Also,
Conversely, if a sensor or switching element is added, the image data and software
6 and the controller 36 additionally displays a corresponding window.

As described above, the image data and software are stored in each of the sensors 27, 10, 20 or the switching element 28.
Since A, 28B, 28C, 28D, and 28E hold these, there is no need to hold them on the controller 36 side. Therefore, the amount of data stored in the memory 32 of the controller 36 can be reduced.

Next, in the inspection process of the refrigerator 1, the personal computer P is connected to the switch 39. At this time, the controller 36 is disconnected from the signal line 22 as described above. In this state, from the personal computer P, the memory 2 is connected via the signal line 22.
5, parameters (data) such as the type (freezing / refrigeration), control method, and function (temperature zone) of the refrigerator 1 are written.

Thereafter, the personal computer P is disconnected from the switch 39, and the controller 36 is connected to the signal line 22 again.
When the controller 36 is connected to the signal line 22, the controller 36 accesses the memory 25, reads the parameters written as described above from the memory 25, and holds the parameters in its own memory 32. Thus, the setting of the parameters from the personal computer P to the controller 36 is completed.

Next, the controller 36 is turned ON / OFF.
The data is transmitted to the signal line 22 together with the ID codes of the switching elements 28A and 28B corresponding to the compressor 13 and the internal fan 7, and the cooling operation is started by activating the compressor 13 and the internal fan 7. And the controller 3
The sixth CPU 31 polls the sensors 27, 10, and 20 at a predetermined cycle. This polling is performed based on the above-mentioned ID code. C of sensors 27, 10, 20
The PU 43 transmits the temperature data to the controller 36 in response to the polling. CPU 31 of controller 36
Writes the received temperature data into the memory 32 once,
Next, the function assignment of each sensor is performed based on the transition of the temperature data after the start of the cooling operation.

That is, if the temperature according to the temperature data has increased after a certain period of time from the start of the cooling operation, the controller 36 assigns a function to the effect that the sensor of the ID is the high-temperature sensor 10, and the memory 32 To memorize. If the temperature according to the temperature data has dropped and the temperature is relatively high, the controller 36 performs a function assignment to the effect that the sensor of the ID is the internal temperature sensor 27 and stores the function in the memory 32. Further, when the temperature according to the temperature data is lowered and the temperature is relatively low, the controller 36 performs a function assignment to the effect that the sensor of the ID is the defrost sensor 20 and stores the function in the memory 32. Thus, the function of each sensor is assigned to the controller 36 without setting in advance.

Next, the actual control operation after installation of the refrigerator 1 will be described. The CPU 31 of the controller 36 polls the sensors 27, 10, and 20 at a predetermined cycle as described above. This polling is performed based on the above-mentioned ID code. CPU 43 of sensors 27, 10, and 20
Transmits the temperature data to the controller 36 in response to the polling as described above. CPU 3 of controller 36
1 temporarily writes the received temperature data into the memory 32, compares the temperature data from the internal temperature sensor 27 with the set temperature in the parameters set as described above, and outputs ON / OFF data to the compressor 13. Is transmitted to the signal line 22 together with the ID code of the switching element 28A.

When receiving the ON / OFF data of its own ID code, the CPU 58 of the switching element 28A turns on / off the transistor 63 as described above based on the data.
F. By turning on / off the transistor 63,
The photodiode 69A is turned ON (emit light) / OFF (turned off), whereby the phototriac 69B is turned off.
N / OFF, whereby the compressor 13 is started / stopped.

The CPU 31 of the controller 36
The ON / OFF data is transmitted to the signal line 22 together with the ID code of the switching element 28E of the defroster 30, and the defroster 30 is energized at a predetermined cycle or at a predetermined time to defrost the cooler 6. Then, based on the temperature data from the defrost sensor 10 received as described above, defrost control of the cooler 6 (end at a predetermined temperature) is executed.

Since the fans 7, 16 and the anti-condensation heater 8 are continuously energized, the ON / OFF data to that effect is
It is transmitted based on the ID code of each switching element 28B, 28C, 28D. The switching elements 28B, 28C, 28D operate or energize the fans 7, 16 or the dew-proof heater 8 based on the ON / OFF data.

Here, the display device 3 by the controller 36 is used.
7 and 8 will be described with reference to FIGS. 8 and 9. FIG. Although FIG. 8 shows the window W1 corresponding to the in-compartment temperature sensor 27, the other sensors 10 and 20 are the same, and the description is omitted. The controller 36 is provided with the internal temperature sensor 2
Based on temperature data from 7, graphic G of thermometer
The temperature in the storage room 3 (hereinafter referred to as the internal temperature) is indicated by 1 and the numerical value N1.

Further, the angle of the arrow graphic G2 indicates whether the temperature in the refrigerator is currently increasing, has not changed (shown), or has decreased. Furthermore, the numerical value N
2, the high temperature alarm temperature and the low temperature alarm temperature are displayed by N3,
When the trend frame G3 is clicked, the history of the internal temperature is displayed in a graph (another window).

Next, FIG. 9 shows a window W4 corresponding to the switching element 28A of the compressor 13, but the other switching elements 28 are the same, and the description is omitted. The controller 36 opens and closes the switching element 28A (OFF / ON of the compressor 13) by the switch graphic G4 according to the ON / OFF data.
ON) Displays the status. The OPEN / CLOSE display G5 displays the status in characters.

The controller 36 controls each sensor 27,
If the temperature data from any of the sensors does not change after the start of operation based on the temperature data from 10 and 20, it is determined that the sensor has failed. If the temperature data from all the sensors does not change, it is determined that the cooling device itself such as the compressor 13 has failed. If the temperature data from the sensor cannot be acquired, it is determined that the line to the sensor has been disconnected.

Further, the switching elements 28A, 28B
···················································································· Controller 3
When such a failure occurs, the CPU 31 of the display 6
To indicate that a failure has occurred in the sensor 27, 10, 20 or the switching element.

On the other hand, the controller 36 controls the sensors 27, 10, and 20 and the switching elements 28A and 28B.
.. Are written into the memory 25 based on the data from the...

Next, maintenance of the refrigerator 1 (maintenance
When performing (inspection), the personal computer P is connected to the switch 39. As a result, the controller 36 is disconnected from the signal line 22 as described above, and the personal computer P is connected to the signal line 22 instead. When a predetermined key operation is performed on the personal computer P, the personal computer P accesses the memory 25 and reads the written history data.

The personal computer P is connected to the sensors 27, 10 and 20 and the switching elements 28 A, 2
8B... And the sensor 27,
10, 20 and each switching element 28A, 28B ...
Capture the current state of. As a result, the operating state and the history of the failure of the refrigerator 1 and the current state are taken into the personal computer P and can be checked, so that a service person or the like can perform maintenance very quickly and accurately.

Particularly, in this case, since the controller 36 is once disconnected from the signal line 22, the switching element 28
A, 28B,... Cannot receive ON / OFF data.
Since the PU 58 self-maintains the current ON / OFF state, it is possible to maintain the operating states of the compressor 13, the fans 7, 16 and the like without any trouble during the maintenance.

Although the embodiment has been described with reference to a sensor for detecting temperature, the present invention is also effective as a humidity sensor or a pressure sensor by using an element for detecting humidity or pressure as the sensor unit.

Further, in the embodiments, the present invention has been described using a commercial refrigerator. However, the present invention is not limited to this, and various types of electric equipment such as a home refrigerator, a low-temperature showcase, a prefabricated refrigerator, a vending machine, an automobile, a house, etc. The present invention is also effective for home automation and security systems.

[0082]

According to the control device to which the present invention is applied as described above, the switching element side control means of the switching element controls the switching means based on the data received from the main control means by the transmission / reception means. So
The main control means can control the operation of the mounting component without any trouble.

In this case, the switching element has its own ID code in the storage means, and the setting system of the present invention detects the ID code of the switching element, and stores the ID code in the switching element based on the detected ID code. Since the data is transmitted and the switching means is operated, the operation of the switching means is detected, a function is assigned to the switching element, and the assigned function is associated with the ID code of the switching element and written into the storage device. The main control means can identify the switching element and the function assigned thereto by referring to the data in the storage device.

As a result, the function of the connected switching element can be surely recognized without specifying the port at the time of connection, etc., and the function assignment setting work is simplified, and the productivity of the device is remarkably increased. As well as improving the yield, the yield during production can be reduced.

According to the second aspect of the present invention, even in the case where there are a plurality of mounting parts and a plurality of switching elements are provided for each of them, the functions allocated in the storage device and the corresponding switching functions are provided. Since the data table corresponding to the element ID code is formed, the main control means can recognize the function of each switching element without error and can realize control of each mounting component without any trouble. is there.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a commercial refrigerator according to an embodiment of the present invention.

FIG. 2 is an electrical wiring diagram of the refrigerator of FIG. 1;

FIG. 3 is a block diagram of an electric circuit of the control box.

FIG. 4 is a block diagram of an electric circuit of the temperature sensor.

FIG. 5 is a block diagram of an electric circuit of the switching element.

FIG. 6 is an electric circuit diagram of a switching unit using a switching element.

FIG. 7 is a diagram illustrating a display state of a display unit of a control box.

FIG. 8 is a diagram showing a window corresponding to the internal temperature sensor displayed on the display.

FIG. 9 is a view showing a window corresponding to the switching element of the compressor displayed on the display.

FIG. 10 is a block diagram illustrating a circuit connection between a driving board and a setting device.

FIG. 11 is a diagram showing a data table in a memory in which an ID code and a function of a switching element are written.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 6 Cooler 7 Internal fan 8 Dew prevention heater 9 Control box 10 Defrost sensor 13 Compressor 14 Condenser 16 Condenser fan 20 High temperature sensor 22 Signal line 23 DC power supply 24 DC power supply line 25 Memory 26 Drive board 27 Internal temperature Sensor 28 Switching element 30 Defroster 31, 43, 58 CPU 32, 44, 59 Memory 37 Display 39 Switcher 42 Communication line 45, 55, 60 Vcc power supply terminal 46, 61 I / O interface 48 Sensor unit 49, 64 Capacitor 51 , 66 Diode 63 Transistor 69 Photocoupler 69A Photodiode 69B Phototriac 81 Setting device P PC

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsumi Maekawa 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Kazuya Imamura 2--5 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Tsutomu Ishikura 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3L045 AA02 DA02 NA19 PA02 PA06 3L061 BA07

Claims (2)

[Claims] 1. A switching device for controlling an operation of a mounting component, a storage device, and main control means for controlling the switching device with reference to data written in the storage device, wherein the switching device includes a switching device. Means, storage means having its own ID code, transmission / reception means for exchanging data with the main control means, and switching element-side control means for controlling the switching means based on data from the transmission / reception means. Means for detecting an ID code of the switching element,
A means for transmitting data to the switching element based on the detected ID code and operating the switching means, a means for detecting the operation of the switching means and assigning a function to the switching element, Means for writing the ID code of the switching element to the storage device in association with the ID code of the switching element. 2. A plurality of switching elements are provided, and data is sequentially transmitted to each switching element based on the detected ID code, and each switching means is sequentially operated, and the operation of the switching means is detected and detected. 2. The setting system for a control device according to claim 1, wherein a function is assigned to each switching element, and a data table in which each assigned function is associated with an ID code of the switching element is configured in a storage device.