JP2000230743A - Controller for apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To monitor sensors and switching elements comprehensibly by providing means for indicating the fixing positions of sensors through search of ID code when a main control means is connected with means for transmitting/ receiving data to/from the sensors, an indicator and the sensors through a signal line. SOLUTION: A control box 9 comprises a CPU 31, a memory 32 for storing ID codes and ID data, an I/O interface 33, and a bus I/O interface 34 connected as a transmitting/receiving means with a signal line 22 through a switch 39. The control box 9 further comprises a display 37 comprising a liquid crystal display panel, a switch 38 as an input means, e.g. a keyboard or a mouse, and a switch 39 wherein the display 37 and the switch 38 are connected with the I/O interface 33 and arranged on an operating panel. Thermometers TH1, TH2, TH3 are provided with temperature sensors 81-83 connected with the transmitting/receiving means M of a personal computer. According to the arrangement, fixing positions of sensors and switching elements can be indicated automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for equipment such as a commercial / home refrigerator, a low-temperature showcase, a prefabricated refrigerator, an air conditioner, a vending machine, and a thermometer.

[0002]

2. Description of the Related Art Conventionally, for example, commercial refrigerators are installed in kitchens of hotels and restaurants. A compressor, a condenser, a cooler, etc. constituting the cooling device are built in, or the compressor and the condenser are separately provided, and the refrigerant discharged from the compressor is condensed by the condenser, and decompressed by the decompression device. After that, the cooling air is supplied to a cooler to exhibit a cooling effect, and the cool air cooled by the cooler is circulated in the refrigerator by a fan inside the refrigerator to cool it to a predetermined 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]

When controlling the operation of the refrigerator, particularly in the case of equipment for business use, it is necessary to prevent damage to the stored products and materials due to failures. It is necessary for the user or the administrator to monitor the temperature detected by each sensor and the operation state of each device.

[0006] Further, it is necessary to monitor the temperature in the kitchen in which the commercial refrigerator is installed for food hygiene. In recent years, devices that monitor the temperature of such parts or devices have been developed, but especially when multiple sensors or switching elements are used, it is necessary for an administrator to determine whether or not the information is related to any of the sensors or switching elements. There was a problem that was difficult to understand.

The present invention has been made in order to satisfy such a conventional technical demand, and provides a control device for a device capable of monitoring a sensor, a switching element, and the like in a very easy-to-understand manner.

[0008]

According to a first aspect of the present invention, there is provided a control device including a main control unit, and a sensor connected to the main control unit by a signal line. The sensor includes a detection element and its own. Storage means holding an ID code, transmission / reception means for exchanging data with the main control means via a signal line,
A sensor-side control unit that fetches data detected by the detection element, writes the data in the storage unit, and transmits the data in the storage unit to the main control unit by the transmission / reception unit, and the main control unit exchanges data with the sensor Transmitting and receiving means,
When the display and the sensor are connected to the signal line,
Means for searching a D code and displaying the position where the sensor is attached on a display.

A control device according to a second aspect of the present invention includes a main control means, and a switching element connected to the main control means by a signal line and controlling operation of the device. The switching element comprises: a switching means; It has storage means holding its own ID code, transmission / reception means for exchanging data with the main control means via a signal line, and switching element side control means for controlling the switching means based on data from the transmission / reception means. At the same time, the main control means searches for the ID code when the switching element is connected to the signal line, the transmission / reception means for transmitting and receiving data to and from the switching element, and the switching element is attached. Means for displaying the position on a display device.

According to the first aspect of the present invention, the sensor-side control means of the sensor writes the data detected by the detection element into the storage means, and transmits the data to the main control means via the signal line by the transmission / reception means. The main control means can take in the data without any trouble. In this case, since the sensor has its own ID code in the storage means, the main control means can identify the sensor by connecting the sensor to the signal line, and the wiring of the sensor is completed.

According to the second aspect of the present invention, the switching element side control means of the switching element controls the switching means based on data from the main control means received by the transmission / reception means via the signal line. The control means can control the device without any trouble. Also in this case, since the switching element has its own ID code in the storage means, the main control means can identify the switching element by connecting the switching element to the signal line, and the wiring of the switching element is completed. I do.

Thus, according to the present invention, it is possible to wire sensors and switching elements by so-called plug-in, and it is possible to significantly simplify wiring. Further, since common software can be used for the main control means regardless of the number of sensors and switching elements, it is also possible to significantly reduce the cost due to the common use.

In particular, the main control means includes: a transmission / reception means for transmitting / receiving data to / from a sensor or a switching element;
Means for searching for the ID code of the sensor or the switching element when the sensor or the switching element is connected to the signal line and displaying the position where the sensor or the switching element is attached on the display. By connecting a sensor or a switching element to the control unit, the mounting position of the sensor or the switching element is automatically displayed on the display of the main control means.

Thus, when monitoring the sensor or the switching element, the user or the administrator can select the sensor or the switching element according to the mounting position and monitor the sensor or the switching element reliably and easily, which is extremely convenient. It will be rich in sex.

In the control device according to a third aspect of the present invention, the sensor or the switching element has, in the storage means, position data relating to a position to which the sensor or the switching element is attached, and the main control means receives the upload of the position data and receives the position data. Alternatively, there is provided a means for displaying the position where the switching element is mounted on a display.

According to the third aspect of the present invention, in addition to the above, the sensor or the switching element holds the position data relating to the position at which the sensor or the switching element is mounted in the storage means, and the main control means receives the upload of the position data and receives the upload. Since there is provided a means for displaying the position where the sensor or the switching element is attached on the display, the position data is held by the sensor or the switching element, and it is necessary to hold them on the main control means side. Disappears. Therefore, the amount of data stored in the main control means can be reduced, and a complete plug-in can be achieved for position display.

According to a fourth aspect of the present invention, the main control means includes means for changing the display position of the sensor or the switching element on the display, and the changed position data is stored in the sensor or the switching element. While transmitting to the sensor side control means or the switching element side control means,
The sensor-side control means or the switching element-side control means receives the transmission of the position data and rewrites the position data held in the storage means.

According to the fourth aspect of the present invention, in addition to the above, the main control means includes means for changing the display position of the sensor or the switching element on the display, and the changed position data is stored in the sensor or the switching element. Since the sensor-side control means or the switching-element-side control means receives the transmission of the position data and rewrites the position data held in the storage means, By changing the position of the sensor or the switching element on the display along with the change of the actual mounting position, the position data held in the sensor or the switching element can be rewritten.

Therefore, the position data held by the sensor or the switching element can be easily changed, for example, when the position at which it is actually mounted is changed.

According to a fifth aspect of the present invention, in the above invention, the main control means includes means for displaying a predetermined display corresponding to the sensor or the switching element selected on the display on the display. It is characterized by the following.

According to a fifth aspect of the present invention, in addition to the above inventions, the main control means includes means for displaying a predetermined display corresponding to the sensor or the switching element selected on the display on the display. With this configuration, a sensor or a switching element whose detection data or operation state is desired to be confirmed can be selected and displayed on the display device, and can be reliably and easily monitored.

[0022]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a kitchen K for explaining the present invention.
FIG. 2 is a schematic cross-sectional view of a commercial refrigerator 1 as an embodiment of a device to which the present invention is applied, FIG. 3 is a wiring diagram of an electric system of the refrigerator 1, and FIG. The wiring diagrams of the system are shown respectively.

In FIG. 1, a kitchen K is a kitchen of a hotel or restaurant, and a refrigerator 1 is installed at the upper left corner in the figure. A thermometer TH1 is attached to the wall surface K1,
A thermometer TH2 is attached to the wall surface K2. Further, it is assumed that a thermometer TH3 is attached to the wall surface K3.

In FIG. 2, the refrigerator 1 has a main body 5 composed of a heat insulating box 2 opening to the front, and a storage room 3 in the heat insulating box 2. This storage room 3
Is openably closed by a door 4. In the storage room 3, a cooler 6 constituting a refrigeration cycle of the cooling device and an in-compartment fan 7 driven by a motor are provided.

Further, a defroster (electric heater) 30 (FIG. 3) for defrosting is attached to the cooler 6, and a dew-proof heater 8 for preventing dew condensation is provided on an opening edge of the heat insulating box 2.
And an operation panel 11 of a control box 9 is attached to the front 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 dissipates heat in the condenser 14 and condenses. The pressure is reduced by a pressure reducing 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 they are air-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. 3, 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. AC power line 21 and signal line 22
Is connected to the control box 9,
The drive board 23 of the compressor 13, the fans 7, 1
The power supply board 24, the defroster 30, and the power supply board 26 of the dew-proof heater 8 are connected to the AC power line 21.

The signal line 22 includes a memory 25 as a storage device, a chip-shaped internal temperature sensor 27 as a sensor for detecting the temperature in the storage room 3, and a sensor for detecting the temperature of the cooler 6. Chip defrost sensor 10
A chip-shaped high-temperature sensor 20 as a sensor for detecting the temperature of the condenser 14, the drive board 23, the power board 2
The chip-like switching elements 28,... Respectively attached to 4, 4 are connected via connectors. The power supply boards 24 and 26 include switching elements 28.
Are actually provided for each of the fans 7, 16, the defroster 30, and the dew-proof heater 8.

In the embodiment, the drive board 23 and the power supply boards 24 and 26 are the compressor 13 and the fans 7 and 16 respectively.
And the defroster 30 and the anti-dew heater 8 are shown as separate components.
4, 26 together with the respective switching elements 28,
Compressor 13, fans 7, 16 and defroster 3
0, it is good also as a structure built in each dew prevention heater 8.

According to this configuration, the wiring is completed only by connecting the compressor 13, the fans 7 and 16 or the defroster 30, the switching elements 28 built in the dew-proof heater 8 and the connector of the signal line 22. For,
Assembly and wiring workability is further improved.

The structure of the control box 9 is shown in FIG.
Is shown in The control box 9 is provided with a controller (substrate) 36. This controller 36
Is composed of 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 composed of a liquid crystal display panel and a switch 38 as input means (keyboard, mouse, etc.).
And a switching device 39 as switching means. 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, the switching elements 28,... Via the signal line 22. A personal computer P as a main control means is connected to the switch 39 via a signal line 42. The personal computer P includes a display D as a display, a transmission / reception unit M, a hard disk as a storage unit, and the switch 39 always connects the bus I / O interface 34 and the signal line 22. Bus I / O interface 3 upon request of
4 (ie, the control box 9) is connected to the signal line 22 for example.
And the personal computer P is connected to the signal line 22 via the signal line 42.

The controller 36 has a predetermined communication protocol for performing data communication with the internal temperature sensor 27, the defrost sensor 10, the high temperature sensor 20, the switching element 28, the memory 25, and the personal computer P, and the sensors 27 to be described later. Software for searching for and identifying the switching element 28, 10, 20 and the switching element 28, image data to be displayed on the display 37, and the like are set.

On the other hand, the thermometers TH1, TH2, TH3
Are provided with temperature sensors 81, 82 and 83, respectively.
Each of the temperature sensors 81, 82, and 83 is connected to a transmitting / receiving means M of the personal computer P via a signal line.

The hard disk of the personal computer P has predetermined sensors for performing data communication with the sensors 27, 10, 20 and the switching element 28, the memory 25, the controller 36, and the temperature sensors 81, 82, 83 of the refrigerator 1. Communication protocol and the sensors 27, 10, 2
It is assumed that software for searching and identifying 0, 81, 82, 83 and the switching element 28, layout image data of the kitchen K, and the like are written.

Next, the inside temperature sensor 27, the defrost sensor 10, the high temperature sensor 20, and the temperature sensors 81, 8
2 and 83 are shown in FIG. Each sensor 27, 1
Since 0, 20, 81, 82, and 83 have the same configuration,
Hereinafter, the inside temperature sensor 27 will be described. The in-compartment temperature sensor 27 includes a CPU 43 as sensor-side control means,
A memory 44 as storage means, and I as transmission / reception means
An I / O interface 46, an A / D converter 47, a sensor unit 48 as a detection element connected to the A / D converter 47, a capacitor 49 as a power storage element, a diode 51 as a rectifying element, and the like. It is configured.

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. Signal line 2
A potential (high potential) of, for example, +5 V is applied to 2, 42, and the data is composed of pulses that fall from this high potential to a low potential of 0 V, for example.

Then, the internal temperature sensor 27 is connected to the signal line 22.
(In the case of the temperature sensors 81 to 83, the signal line 42), 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. The capacitor 49 is also charged. During the low potential period, the capacitor 49 is discharged from the capacitor 49 to supply power to each element.

The internal temperature sensor 27 has Vcc (DC
+ 5V) A power supply terminal 45 is also provided, which is connected to the connection point between the diode 51 and the capacitor 49. If the Vcc power supply terminal 45 is connected to a power supply line, each element is connected to the power supply line. It is configured to be able to operate also by the power supply of. That is, in this case, each element operates without filling the capacitor 49, so that convenience is improved when it is desired to quickly operate the internal temperature sensor 27 at the time of inspection or the like.

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. When polling from the controller 36 or the personal computer P via the signal lines 22 and 42 by the I / O interface 46, the memory 4
4 is written to the controller 36 via the signal lines 22 and 42 by the I / O interface 46.
Or to the personal computer P.

Here, the internal temperature sensor 2 is stored in the memory 44.
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 personal computer P, and the like. In addition, the inside temperature sensor 2
If a failure has occurred in 7, the failure data is also written to the memory 44 and transmitted to the controller 36 and the personal computer P.

Further, the memory 3 has the controller 3
6 and the sensor image data (display data) to the personal computer P (only the personal computer P in the case of the temperature sensors 81 to 83) and the image data are displayed on the display 37 of the controller 36 and the display D of the personal computer P. Software for performing the operation is stored.

Further, the memory 44 stores position data relating to the position where the sensor is mounted. The position data is configured as XY coordinate data for graphically displaying the position where the sensor is mounted on the kitchen layout screen on the display D of the personal computer P.

FIG. 6 shows the structure of the switching element 28. The switching element 28 includes a CPU 58 as a switching element side control unit, a memory 59 as a storage unit, an I / O interface 61 as a transmission / reception unit, an I / O interface 62 as a driver, and an I / O interface 62 as a driver. , A transistor 63 as a switching means, 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. When the switching element 28 is connected to the signal line 22, power is supplied to each element as long as the high-potential and low-potential pulse signals constituting data are at the high potential as described above, and the capacitor 64 is also supplied to the capacitor 64. Charged. While the potential is low, the capacitor 64 discharges power to supply power to each element.

The switching element 28 is also provided with a Vcc (DC + 5V) power supply terminal 55 connected to the connection point between the diode 66 and the capacitor 64, as shown by the broken line in FIG. If connected, each element of the switching element 28 can operate even by power supply from the power supply line. That is, in this case, each element operates without filling the capacitor 64.
The convenience is improved when the user wants to operate the camera 8 quickly.

When ON / OFF data is transmitted from the controller 36 or the personal computer P via the signal line 22 by the I / O interface 61, the CPU 58 transmits the ON / OFF data to the I / O interface 62 based on the ON / OFF data. The transistor 63 is turned on / off.

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

Further, the memory 3 stores the controller 3
6 stores image data (display data) of the switching element for the display 37 and the personal computer P and software for displaying the image data on the display 37 of the controller 36 and the display D of the personal computer P.

Further, the memory 59 stores position data relating to the position where the switching element 28 is mounted. The position data is configured as XY coordinate data for graphically displaying the position where the switching element is mounted on the kitchen layout screen on the display D of the personal computer P.

The switching element 28 is connected to each drive board 2
3. The switching unit 68 is wired on the power supply boards 24 and 26 as shown in FIG. That is, 69 is a photocoupler comprising a photodiode 69A and a phototriac 69B, 71 is a resistor, 72 is a diode as a rectifying element, and 73 is a capacitor 74 as a power storage element.

In this case, the capacitor 74 is connected to the diode 7
A resistor 7 is connected between the connection point of the diode 72 and the capacitor 74 and the collector terminal (indicated by S2 in FIG. 6) of the transistor 63 of the switching element 28.
1 and the photodiode 69A are connected in series. The terminal S1 (FIG. 6) 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.

When the diode 72 is connected to the signal line 22, power is supplied to the photodiode 69A via the resistor 71 while 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.

Similarly, the diode 72 and the capacitor 7
Vcc power supply terminal 60 is connected to the connection point
If the power supply terminal 60 is connected to the power supply line, the photodiode 69A can operate even by power supply from the power supply line. That is, in that case, each element operates without filling the capacitor 74.
Convenience is improved when it is desired to operate quickly at the time of inspection or the like.

The operation of the above configuration will be described. First, the operation of the refrigerator 1 during production will be described. Each sensor 2 of the refrigerator 1
7, 10, 20 and the switching element 28.
2 is connected to the controller 36 (C
PU 31) firstly connects each element (sensor 27,
10, 20, the connection status of the switching elements 28...) Is searched.

In this case, the controller 36 sends IDs to all the sensors 27, 10, 20 and the switching elements 28,.
Make a request and in response all sensors 27, 10, 2
0, the switching element 28... Replies its own ID code or the like to the controller 36. The controller 36 is connected to the internal temperature sensor 27, the defrost sensor 10 and the high temperature sensor 20 on the signal line 22 based on the returned ID code and the like, and the switching element 28 for the compressor 13 and the switching element for the defroster 30. 2
8. It is recognized that the switching elements 28 for the internal fan 7 and the switching element 28 for the dew-proof heater 8 (actually, there is also a condenser fan) are connected.

The controller 36 stores the recognized connection state between the temperature sensors 27, 10, 20 and the switching elements 28,... In the memory 32, and thereafter transmits data to each element using this ID code. Will be.

The refrigerator 1 is a kitchen K shown in FIG.
The thermometers TH1 to TH3 are also mounted at the positions shown in FIG. 1 and are connected to the personal computer P via a signal line 42.

Thereafter, C of the controller 36 of the refrigerator 1
The PU 31 polls the sensors 27, 10, and 20 at a predetermined cycle. This polling is performed based on the above-mentioned ID code. CPU 4 for sensors 27, 10, 20
3 transmits the temperature data to the controller 36 in response to the polling. The CPU 31 of the controller 36 once writes the received temperature data in the memory 32, compares the temperature data from the in-chamber temperature sensor 27 with the set temperature in a preset parameter, and turns the temperature ON / O.
The FF data is transmitted to the signal line 22 together with the ID code of the switching element 28 of the drive board 23.

The C of the switching element 28 of the drive board 23
When receiving the ON / OFF data of its own ID code, the PU 58 receives the ON / OFF data of the
Is turned ON / OFF. ON / O of this transistor 63
The photodiode 69A is turned ON (light emission) by the FF /
The photo triac 69B is turned on / off, thereby turning on / off the compressor 13.

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 28 of the power supply board 26, 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, 15 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 the switching element 28 of each of the power supply boards 24 and 26. Each switching element 28 operates or energizes each of the fans 7, 15 or the dew-proof heater 8 based on the ON / OFF data.

Next, the monitoring operation in the personal computer P will be described. Switch 39 of refrigerator 1 and each thermometer TH
When the temperature sensors 81, 82, 83 of TH1, TH2, TH3 are connected to the signal line 42, the personal computer P
To each element (sensors 27, 10, 2 of refrigerator 1 and thermometer)
0, 81, 82, 83, and the connection status of the switching elements 28...

In this case, the personal computer P is
And an ID request to all of the temperature sensors 81, 82, and 83, and in response to this, the controller 36 returns the ID code of each sensor of the refrigerator 1 and the switching element to the personal computer P. The temperature sensors 81, 82, and 83 return their own ID codes and the like to the personal computer P. The personal computer P is connected to the signal line 42 with the controller 36 of the refrigerator 1 and the like based on the returned ID code and the like.
It recognizes that 1, 82 and 83 are connected.

The personal computer P stores the recognized status of each element of the refrigerator 1 and the connection status of the temperature sensors 81, 82, 83 on the hard disk, and thereafter transmits data to each element using this ID code. Will do.

Further, each sensor 27, 10, 2 of the refrigerator 1
From 0, the sensor image data in the respective memories 44, software for displaying the sensor image data, and the position data are uploaded to the personal computer P via the signal lines 22 and 42. Each switching element 28
・ Also, the switching element image data in each memory 59 and the software for displaying it are:
Then, the position data is uploaded to the personal computer P via the signal lines 22 and 42. Note that the above is similarly executed for the controller 36.

Further, the temperature sensors 81, 82, and 83 of the thermometers TH1 to TH3 also output sensor image data in the respective memories 44, software for displaying the image data, and the position data to the signal line 42. Via the PC.

Then, using the layout image data of the kitchen K, the personal computer P displays a kitchen layout screen showing a kitchen layout R on the display D as shown in FIG. Also, based on the position data of each sensor and switching element uploaded based on the above recognition result,
The temperature sensors 81, 82, and 83 of the thermometers TH1 to TH3 are displayed in the kitchen layout R.

This corresponds to the position in the kitchen K where the thermometers TH1 to TH3 are actually attached. in this case,
In the memory 44 of each sensor, position data created assuming a position where the sensor (thermometer) is actually attached is written as an initial value.

The sensors 27, 10, 20 of the refrigerator 1
The switching element 28 is integrated from each position data, and is first displayed as the refrigerator 1 in the kitchen layout R.

Then, for example, a thermometer TH using a mouse
When the temperature sensor 81 corresponding to 1 is double-clicked,
The personal computer P displays a window W1 on the display D as shown in FIG. In this case, the personal computer P uses the temperature data from the temperature sensor 81 to display the graphic G1 of the thermometer.
And the numerical value N1, the temperature of the kitchen K at the position where the thermometer TH1 is attached is displayed.

In addition, the angle of the arrow graphic G2 indicates whether the inside temperature is currently rising, has not changed (shown), or has dropped. 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 temperature history is displayed in a graph (another window). Note that FIG. 9 shows a window W1 corresponding to the temperature sensor 81, but the other temperature sensors 82 and 83 are also the same, and the description is omitted.

Further, when the refrigerator 1 is double-clicked with the mouse, a window W0 simulating the interior of the refrigerator 1 as shown in FIG. In this window W0, based on the position data, the internal temperature sensor 27, the defrost sensor 10, and the high temperature sensor 20 are shown corresponding to the actual position in the refrigerator 1, and the switching element 28 also corresponds to the actual position. (In the embodiment, 1
Only).

Then, when, for example, the inside temperature sensor 27 is double-clicked with a mouse, the personal computer P displays a window similar to that shown in FIG. Switching element 2
When the user double-clicks 8, a window W4 corresponding to, for example, the switching element 28 of the compressor 13 is displayed as shown in FIG. The personal computer P is the ON / OF
Opening / closing of the switching element 28 (OFF of the compressor 13) by the graphic G4
/ ON) state is displayed. Also, OPEN / CLOSE
The display G5 displays the status in characters.

Next, a case where the actual mounting position of the thermometer TH1 is changed to the position shown by the broken line in FIG. 1 will be described. In this case, assuming the changed position in the kitchen K, the temperature sensor 81 is dragged on the kitchen layout screen of the personal computer P shown in FIG. 8 to change the display position to the position shown by the broken line in FIG.

The personal computer P generates position data from the changed XY coordinates, and outputs the position data via the signal line 42 to the thermometer T.
It is transmitted together with the ID code to the temperature sensor 81 of H1. When receiving the position data of its own ID code, the CPU 43 of the temperature sensor 81 rewrites the position data in the memory 44 to the received position data.

In the embodiment, the position data created assuming the position where the sensor (thermometer) is actually mounted is written as the initial value in the memory of each sensor. However, the present invention is not limited to this. A fixed position on the upper side (for example, the right corner) is uniformly written and set as an initial value,
By moving the inside of the kitchen layout R on the screen by the same drag operation as the above-described position change, the position data of each sensor may be rewritten to the coordinates corresponding to the actually attached position.

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.

Furthermore, in the embodiments, the present invention has been described using a commercial refrigerator or a thermometer. However, the present invention is not limited to this. The present invention is also effective for home automation and security systems in houses.

[0082]

As described above in detail, according to the first aspect of the present invention, the sensor-side control means of the sensor writes the data detected by the detecting element into the storage means, and the main control means via the signal line by the transmission / reception means. The main control means can take in the data without any trouble. In this case, since the sensor has its own ID code in the storage means, the main control means can identify the sensor by connecting the sensor to the signal line, and the wiring of the sensor is completed.

According to the second aspect of the present invention, the switching element side control means of the switching element controls the switching means based on data from the main control means received by the transmission / reception means via the signal line. The control means can control the device without any trouble. Also in this case, since the switching element has its own ID code in the storage means, the main control means can identify the switching element by connecting the switching element to the signal line, and the wiring of the switching element is completed. I do.

Thus, according to the present invention, it is possible to wire sensors and switching elements by so-called plug-in, and it is possible to significantly simplify wiring. Further, since common software can be used for the main control means regardless of the number of sensors and switching elements, it is also possible to significantly reduce the cost due to the common use.

In particular, the main control means includes transmitting / receiving means for transmitting and receiving data to and from sensors and switching elements, a display,
Means for searching for the ID code of the sensor or the switching element when the sensor or the switching element is connected to the signal line and displaying the position where the sensor or the switching element is attached on the display. By connecting a sensor or a switching element to the control unit, the mounting position of the sensor or the switching element is automatically displayed on the display of the main control means.

Thus, when monitoring the sensor or the switching element, the user or the administrator can select the sensor or the switching element according to the mounting position and monitor the sensor or the switching element reliably and easily, which is extremely convenient. It will be rich in sex.

According to the third aspect of the present invention, in addition to the above, the sensor or the switching element holds the position data relating to the position to which the sensor or the switching element is mounted in the storage means, and the main control means receives the upload of the position data and receives the upload. Since there is provided a means for displaying the position where the sensor or the switching element is attached on the display, the position data is held by the sensor or the switching element, and it is necessary to hold them on the main control means side. Disappears. Therefore, the amount of data stored in the main control means can be reduced, and a complete plug-in can be achieved for position display.

According to the fourth aspect of the present invention, in addition to the above, the main control means includes means for changing the display position of the sensor or the switching element on the display, and the changed position data is transmitted to the sensor or the switching element. Since the sensor-side control means or the switching-element-side control means receives the transmission of the position data and rewrites the position data held in the storage means, By changing the position of the sensor or the switching element on the display along with the change of the actual mounting position, the position data held in the sensor or the switching element can be rewritten.

Therefore, the position data held by the sensor or the switching element can be easily changed, for example, when the position to be actually mounted is changed.

According to the fifth aspect of the present invention, in addition to the above inventions, the main control means includes means for displaying a predetermined display corresponding to the sensor or switching element selected on the display on the display. With this configuration, a sensor or a switching element whose detection data or operation state is desired to be confirmed can be selected and displayed on the display device, and can be reliably and easily monitored.

[Brief description of the drawings]

FIG. 1 is a plan view of a kitchen for explaining the present invention.

FIG. 2 is a schematic sectional view of a commercial refrigerator as an embodiment of a device to which the present invention is applied.

FIG. 3 is a wiring diagram of an electric system of the refrigerator of FIG. 2;

FIG. 4 is a wiring diagram of an electric system of a device in the kitchen of FIG. 1;

FIG. 5 is a block diagram of an electric circuit of the temperature sensor.

FIG. 6 is a block diagram of an electric circuit of the switching element.

FIG. 7 is an electric circuit diagram of a switching unit using a switching element.

FIG. 8 is a diagram showing a display state of a display of a personal computer.

FIG. 9 is a diagram showing a window corresponding to a temperature sensor displayed on a display.

FIG. 10 is a view showing a window corresponding to a switching element of a compressor displayed on a display.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 6 Cooler 7 In-compartment fan 8 Dew-proof heater 9 Control box 10 Defrost sensor 13 Compressor 14 Condenser 16 Condenser fan 20 High-temperature sensor 22, 42 Signal line 27 In-compartment temperature sensor 28 Switching element 30 Defroster 31, 43, 58 CPU 32, 44, 59 Memory 37 Display 39 Switcher 46, 61 I / O interface 48 Sensor unit 49, 64 Capacitor 51, 66 Diode 63 Transistor 69 Photocoupler 69A Photodiode 69B Phototriac 81-83 Temperature sensor K Kitchen P personal computer TH1-TH3 thermometer

 ──────────────────────────────────────────────────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 BA01 CA02 DA02 EA01 GA07 HA01 LA16 LA18 MA02 MA04 MA05 MA06 NA19 NA22 NA24 PA04 PA06 3L061 BA01 BA05 5H215 AA11 AA20 BB01 BB09 BB12 CC05 CX05 CX06 GG02 GG05 JJ02 JJ04 JJ13 KK03 9A001 HH34 JJ61 KK32 LL09

Claims (5)

[Claims] 1. A control device comprising: a main control unit; and a sensor connected to the main control unit by a signal line. The sensor includes a detection element, a storage unit having its own ID code, and a signal line. Transmitting and receiving means for transmitting and receiving data to and from the main control means, and a sensor for receiving data detected by the detection element and writing the data in the storage means, and transmitting the data in the storage means to the main control means by the transmitting and receiving means The main control means includes a transmission / reception means for transmitting and receiving data to and from the sensor, a display, and, when the sensor is connected to the signal line, searching for an ID code thereof. Means for displaying, by the display, a position where the sensor is attached. 2. A main control means, and a switching element connected to the main control means by a signal line and controlling the operation of the device, the switching element comprising a switching means and a memory holding its own ID code. Means for transmitting and receiving data to and from the main control means via the signal line, and switching element-side control means for controlling the switching means based on data from the transmission and reception means. Means for transmitting and receiving data to and from the switching element, a display, and, when the switching element is connected to the signal line, searching for an ID code thereof and a position where the switching element is mounted. Means for performing the above-mentioned display on the display unit. 3. The sensor or the switching element holds position data relating to a position to which the sensor or the switching element is attached in the storage means, and the main control means receives the upload of the position data and determines the position of the position where the sensor or the switching element is attached. 3. The device control device according to claim 1, further comprising a unit that performs display on a display. 4. The main control means includes means for changing a display position of a sensor or a switching element on a display, and the changed position data is stored in a sensor-side control means or a switching element-side control of the sensor or the switching element. 4. The control apparatus according to claim 3, wherein said control means or said switching element side control means receives said position data and rewrites the position data stored in said storage means. 5. The apparatus according to claim 1, wherein the main control means includes means for displaying a predetermined display corresponding to the sensor or the switching element selected on the display on the display. A control device for a device according to claim 3 or claim 4.