JP2752290B2 - Centralized control device for showcases - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centralized control device for showcases and the like for collectively managing the operating states of a plurality of showcases and the like.

[0002]

2. Description of the Related Art Stores such as supermarkets and convenience stores are provided with a plurality of showcases and refrigerators. Conventionally, each showcase is individually controlled by a control device including a temperature controller and a defrosting timer. Is currently controlled. Therefore, various setting operations such as the temperature of the showcase and the like and the defrosting time must be individually performed at the place where the showcase and the like are installed. Therefore, when the setting is changed depending on the season or weather, the operation becomes extremely complicated.

[0003] In addition, in order to grasp the operating conditions such as various set values and the temperature of the showcase or the like, it is necessary to go to a place where the showcase or the like is installed and to individually check the operating conditions. There was a problem that data on the data could not be easily grasped.

For this reason, for example, Japanese Patent Application Laid-Open No.
In Japanese Patent Application Publication (F25D21 / 06), a control device of each showcase is connected to a centralized control device constituted by a microcomputer by a communication line, and various setting operations of each showcase are performed by the centralized control device. 1 shows a system for collecting data relating to the operation status of a vehicle in a centralized management device and collectively managing the data. According to such a system, the setting operation and the operation status management of a plurality of showcases can be performed collectively, so that the setting and management operations are significantly simplified.

[0005]

Here, when each showcase is managed by such a system, a control channel is assigned to each showcase, and each showcase is identified.
It is necessary to transmit and receive data with distinction for each channel. Also, a predetermined number of such channels are prepared in advance according to the capabilities of the microcomputer or the like, while the number of showcases installed varies depending on the scale of the store. Accordingly, there is a case where the number of channels is excessive and unused channels occur. Conventionally, with respect to this unused channel, the central control device simply prohibits the occurrence of an alarm or the like, and also displays the channel or the like. Therefore, when displaying and confirming data for each channel, it is necessary for the user to perform an operation of skipping unused channels one by one. That is, for example, when there are 15 unused channels when there are 30 channels, the above operation must be performed 15 times.

[0006] In addition, there is no longer a showcase to which intermediate channels are allocated due to the renovation of stores, etc.
If the channel becomes unnecessary, there will be a channel for which no data is displayed when sequentially checking each channel for maintenance or the like at a later date, which may lead to confusion such as a false recognition. Therefore, there is a problem that, when trying to allocate channels in a compact manner, it is necessary to reset all the channels after the channel.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional technical problem, and has an improved operability when centrally managing a plurality of showcases to which respective channels are assigned. The purpose of the present invention is to provide a centralized management device.

[0008]

That is, the centralized control device for a showcase or the like according to the first aspect of the present invention collectively manages the operating state of a plurality of showcases or the like, and comprises a host control device (main controller). A control device 3, a system control device 4), and a terminal-side control device which is provided in each of a plurality of showcases and can be connected to a predetermined number of higher-level control devices and to which individual channels are assigned. The upper-level control device is configured to have input means for inputting operating conditions such as a set temperature of a showcase and a defrosting time, and to transmit data input by the input means to the terminal-side control device, Transmitting / receiving means for receiving data transmitted from the side control device, display means, control means for displaying each data on the display means for each of the channels, and controlling use of the channels. Characterized in that it comprises a setting means for setting the unit.

In the centralized management device such as a showcase according to the second aspect of the present invention, the control means, based on the use status of the channel set by the setting means, if there is an unused channel, relates to the channel. It is characterized in that display of data is prohibited and data relating to the next channel is displayed.

[0010]

According to the centralized control device for a showcase or the like according to the first aspect of the present invention, various settings relating to the operating conditions of the terminal-side control device such as each showcase are performed by the input means of the host control device (main control device 3). be able to. Further, data relating to the operating state of each showcase or the like can be received and displayed on the display means for each channel. In particular, the use / non-use of the channel can be set in the control means (microcomputer 24) by the setting means (DIP switch 52) of the higher-level control device (system control device 4). Does not cause confusion and therefore does not need to reassign channels.

Further, according to the centralized control device for a showcase or the like according to the second aspect of the present invention, the setting means (the dip switch 5
Based on the setting of 2), the control means (microcomputer 24) prohibits the display of the data on the unused channel and displays the data on the next channel.
When displaying data of each showcase or the like for each channel, the user does not need to perform an operation of skipping unused channels one by one, and operability is improved.

[0012]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a system configuration diagram of a centralized management device 1 of the present invention. The system of the centralized management device 1 of the present invention is provided in a central management device 2 composed of a personal computer, a main control device 3 and a system control device 4 constituting a higher-level control device composed of a microcomputer, and in each showcase. And the lower-level terminal-side control device 6.

The central management unit 2 is provided in a security room of a store or the like. As shown in FIG. 2, a microcomputer 7 as control means, a hard disk 8 and a ROM 9 as storage means connected to the microcomputer 7,
It comprises an AM 11, a floppy disk drive 12, a transmitting / receiving means 13, an output control means 14, and an input control means 16. The transmitting / receiving means 13 is constituted by a serial interface, and the main controller 3 and the RS-23 are connected to each other.
It is connected via a communication line 17 such as 2C. The hard disk 8 has a control program of the central management device 2 itself, various data sent from the main control device 3, and an installation form (case layout) of a showcase S or the like to be described later.
And data related to various operating conditions, a communication protocol, and the like. Output control means 1
A printer 18 as an output unit and a display 19 as a display unit are connected to 4, and a keyboard 21 and a mouse 22 as input units are connected to the input control unit 16. Further, a microcomputer 23 is connected to the microcomputer 7 so as to be able to communicate outside via a telephone line.

Next, a main controller 3 constituting a higher-level controller is also provided in the guard room or the like. As shown in FIG. 3, a microcomputer 24 as control means, a ROM 26 and a RAM 27 connected to the microcomputer 24 are provided. ,
It comprises an EEPROM 40, transmission / reception means 28 and 29, output control means 31, and input control means 32. The transmission / reception means 28 and 29 are constituted by a serial interface. The transmission / reception means 28 is connected to the central management device 2 via the communication line 17, and the transmission / reception means 29 is connected to the system control device 4 via the communication line 33. Is done. The transmission / reception means 29 has five connection ports, whereby up to five system control devices 4 can be connected.
The ROM 26 stores a communication protocol and a control program for the main controller 3 itself. The RAM 27 stores various data transmitted from the system controller 4 and the system controller 4.
Various data to be sent to the main controller 3 and control data of the main controller 3 itself (display data of the liquid crystal display unit 34, etc.) are stored.
M40 stores data relating to various settings and installation states of the showcase S and the like, and is held even when the power is turned off. The output control means 31 is connected with a liquid crystal display 34 as a display means, an external alarm output 99 comprising a relay contact output as an alarm means and a buzzer 36, and the input control means 32 includes a key switch 37 as an input means, The dip switch 38 and the slide switch 39 are connected. The key switch 37 is a switch for performing various settings and display commands to be described later.
Is a switch for setting the connection state of the system control device 4. The slide switch 39 is a switch for performing settings related to lighting control of a showcase S and the like, which will be described later, and stopping at night.

Next, as shown in FIG. 4, the system control device 4 constituting the host control device includes a microcomputer 41 as control means, a ROM 42, a RAM 43, an EEPROM 45 connected to the microcomputer 41,
It comprises transmission / reception means 44, 46, output control means 47 and input control means 48. The transmission / reception means 44 and 46 are constituted by a serial interface.
4 is connected via the communication line 33 to the main control device 3 (also connected to the other system control devices 3 at the same time), and the transmission / reception means 46 is connected to the terminal side control device 6 via the communication line 49. Have been. The transmitting / receiving means 46 has 30 connection ports, and a maximum of 30 terminal-side control devices 6 can be connected.
It is configured such that up to zero terminal-side control devices 6, that is, showcase S, etc., can be connected. The ROM 42 stores a communication protocol and a control program for the system control device 4 itself. The RAM 43 stores various data transmitted from the terminal-side control device 6 and the showcase S transmitted from the main control device 3. The data on the various operating conditions is stored. The EEPROM 45 stores setting data of various operating conditions such as the showcase S sent from the main controller 3 and is held even when the power is turned off. The output control means 47 is connected to an LED display section 51 for displaying an alarm, and the input control means 48 is used or not used for channels 1 to 30 allocated for controlling the showcase S and the like as described later. A DIP switch 52 is connected as setting means for setting the own A to E channels or switching the LED display unit 51 for displaying an alarm to an operation monitor.

Next, the terminal-side control device 6 is provided in each of the showcase S and the refrigerator R shown in FIG. 1, and as shown in FIG.
And the ROM connected to the microcomputer 54
56, RAM 57, EEPROM 50, and transmission / reception means 5
8, output control means 59 and input control means 61. The transmission / reception means 58 is constituted by a serial interface, and is connected to the system control device 4 via the communication line 49. The ROM 56 stores a communication protocol and a control program for the terminal-side control device 6 itself, and the RAM 57 stores data relating to various operating conditions such as the showcase S sent from the system control device 4. The EEPROM 50 has a terminal-side control device 6.
The setting data of various operating conditions such as the showcase S set in the step (1) is stored, and is retained even when the power is turned off.
The output control means 59 is connected to a display means 62 for displaying an alarm and an actuator 63. The actuator 63 is an expansion valve, a heater for defrosting, lighting, and the like in the case of the showcase S, and means a compressor motor and the like in the case of the refrigerator R. The input control means 61 is connected to a setting switch 64 and a sensor 66 for detecting the internal temperature of the showcase S, the condensing pressure of the refrigerator R, and the like. The data detected by the sensor 66 is also the RA
Stored in M57. The setting switch 64 is for allocating and setting channels 1 to 30 of the terminal-side control device 6 as described above. The microcomputer 54 has a sensor ID as individual identification information set for each model of the showcase S and the refrigerator R.

The showcase S and the refrigerator R are installed in a predetermined number and in a predetermined installation form, that is, in a case layout according to the size of a store such as a supermarket or a convenience store.
The required number is connected to the main controller 3 in accordance with the number of installations. That is, when a total of 91 to 150 showcases S and refrigerators R are installed in a large-scale store, 4
To five system control devices 4 are connected. When a total of 31 or more and 90 or less showcases S and refrigerators R are installed in a medium-sized store, two or three system control devices 4 are connected. Further, when a total of 30 or less showcases S and refrigerators R are installed in a small-scale store, one system control device 4 is connected.

As described above, the main controller 3 and the system controller 4 are separated, and one system controller 4 is connected to the terminal-side controller 6 such as 30 showcases S. As a result, the number of connection ports of the transmission / reception means 29 of the main control device 3 is reduced, and even in the case of a small store, only four unused ports are generated at the worst. It is possible to flexibly respond to the size of the store.

When the showcase S or the like is installed, each terminal-side control device 6 is set to 1 to 30 by a setting switch 64.
Is set, and in the system control device 4 to which the terminal-side control device 6 is connected, by setting one of A to E, the channel of each terminal-side control device 6 is set. (For example, A01) is assigned and set. still,
If the number of showcases S connected to the system control device 4 is less than 30, the use / non-use of the channels (1 to 30) is determined by the dip switch 52 of the system control device 4.
Is set, the use status of this channel is transmitted from the microcomputer 41 of the system control device 4 to the microcomputer 24 of the main control device 3, and the microcomputer 24 of the main control device 3 is set to use or not use the channel. Is done.

The operation of each device having the above configuration will be described. First, various input operations in the central management device 2 will be described. FIG. 6 shows the transition of the display screen on the display 19 of the central management device 2. When the business menu is selected from the standby screen by operating the keyboard 21 or the mouse 22, the microcomputer 7 displays the business menu screen of FIG. When the second shop layout creation menu from the top is selected on the business menu screen, a case layout creation screen (not shown) of the shop layout creation menu is displayed on the display 19.

The hard disk 8 of the central management unit 2 has
A program and data related to the case layout creation are stored. In this case layout creation screen, a frame corresponding to each showcase S is displayed on the display 1.
9 and operated by using commands such as move, copy, and rotate with the mouse 22, a case layout corresponding to the actual installation form of the showcase S in the store as shown in FIG. Can be created. Further, the model name of the showcase S, the product type such as fresh fish, the channel, and the sensor ID corresponding to the frame can be set, and the display color of the frame can be color-coded for each product type. ing. Data on the case layout created by such a case layout creation function is stored and stored in the hard disk 8 by the microcomputer 7.

Next, when the fourth setting menu from the top is selected on the business menu screen, the microcomputer 7 does not show various setting menus relating to various settings of the main control device 3 and operation conditions of the terminal side control device 6 (not shown). A terminal control setting screen is displayed on the display 19. On this terminal control setting screen, the in-chamber setting temperature for each channel (for example, A01) assigned to each terminal-side control device 6 by the keyboard 21 or the mouse 22,
The operating conditions of the showcase S and the like such as various alarms, various set values relating to defrosting, a management temperature, and the like can be set. The data relating to the operating conditions is stored in the hard disk 8 by the microcomputer 7 and can be transmitted to the main controller 3 by the transmission / reception means 13 using the download function by operating the keyboard 21.

Next, the main controller 3 will be described. The main control unit 3 includes a box-shaped main body 68 as shown in FIGS.
9. The liquid crystal display 34 is 16 characters x
It has a two-row display capability, is arranged on the top of the main body 68, and has a cover 6
A through-hole 71 is formed in a portion corresponding to the liquid crystal display unit 34 of No. 9. A buzzer stop switch 7 constituting the key switch 37 is provided on the front surface of a lid 69 located below the through hole 71.
2. An alarm release switch 73, a check switch 74, a scan switch 76, and a display feed switch 77 engraved with an arrow as a display switching unit are provided, and these constitute a display operation unit 79.

Further, on the front surface of the main body 68 with the cover 69 opened as shown in FIG. 14, channels (for example, A
01) A part of the key switch 37, the DIP switch 38, and the slide switch 39 for setting operating conditions such as the showcase S such as a set temperature in the refrigerator, various alarms, various set values relating to defrosting, a control temperature, etc. A configuration operation unit 78 is provided. As described above, the display operation unit 79 that is operated relatively frequently is provided on the front surface of the lid 69, and the setting operation unit 78 that is relatively infrequently operated can be provided inside the lid 69. This prevents erroneous settings from being caused by accidentally touching.

Data relating to the operating conditions of the showcase S and the like set by the setting operation section 78 of the main control device 3 are stored in the RAM 27 and the EEPROM 40 by the microcomputer 24, and the transmission / reception means 29
From the central control unit 2 as described above, the microcomputer 24 stores the data in the RAM 27
Then, the contents of the EEPROM 40 are rewritten to the downloaded data and transmitted to the system control device 4. These data are transmitted separately for each channel. In response to a request from the central management device 2, the microcomputer 24 of the main control device 3 transmits the data set by the setting operation section 78 to the central management device 2 by the transmission / reception means 28.
Upload to. In the central management device 2, the main control device 3
Can be compared with the data set by the central management device 2.

Next, when the transmission / reception means 44 of the system controller 4 receives from the main controller 3 data relating to operating conditions such as the showcase S belonging to its own channel (A to E), the microcomputer 41 temporarily stores the data. RA
The data is stored in M43, and the transmission / reception means 46 transmits data on the operating conditions to the terminal-side control device 6.

On the other hand, the terminal-side control device 6
8 receives the data on the operating conditions for its own channel (01 to 30),
Saves the data in the RAM 57. The microcomputer 54 controls the expansion valve and the compressor motor as the actuator 63 by comparing the output of the sensor 66 with respect to the temperature in the refrigerator of the showcase S and the set temperature in the refrigerator among the data on the operating conditions. The temperature is controlled to the set temperature in the refrigerator. In addition, the heater as the actuator 63 is controlled based on the data relating to the defrosting, the defrosting control of the showcase S is executed, and the lighting of the illumination as the actuator 63 is controlled based on the data relating to the lighting control.

Data relating to the operating state such as the internal temperature in the showcase S or the like is sequentially stored in the RAM 57 by the microcomputer 54 and updated. Further, when the temperature inside the refrigerator abnormally rises due to, for example, a failure of the expansion valve, and exceeds a set value related to an alarm among the data sent from the system control device 4, the microcomputer 54 causes the display unit 62 to display the showcase S. And the like, and saves in the RAM 57 the information on the operation state, including the information on the alarm.

The microcomputer 4 of the system control device 4
1 is a maximum of 3 connected to itself for example once a minute
The polling is performed on the microcomputers 54 of the zero terminal-side control devices 6. When the microcomputer 54 of the terminal-side control device 6 is polled by the system control device 4, the microcomputer 54 displays its own channel and sensor ID in the RAM.
The data relating to the operation state stored in the storage 57 is transmitted from the transmission / reception means 58 to the system controller 4. The system control device 4 receives and collects the data on the operation state by the transmission / reception means 46, and transmits the data on the operation state of a maximum of 30 vehicles for each terminal-side control device 6, that is, for each channel.
It is stored in the AM 43. The data on the operating state in the RAM 43 is updated by transmitting data from the terminal-side control device 6 at the next polling. Further, when the alarm information is included in the data transmitted from the terminal-side control device 6, the microcomputer 41 turns on the LED display unit 51 to display it on the outside.

The microcomputer 24 of the main control unit 3
Also polls the system controller 4 once a minute, at the same time that the system controller 4 completes the collection of data from each terminal-side controller 6. When the microcomputer 41 of the system control device 4 is polled by the main control device 3, the transmission / reception means 44 transmits data on the operating state of up to 30 showcases S and the like stored in the RAM 43 together with its own channel. Transmit to the control device 3. The main controller 3 receives and collects the data on the operation state by the transmission / reception means 29, and stores the data on the operation state of up to 150 units in the RAM 27 for each terminal-side control device 6, that is, for each channel. This RA
Similarly, the data on the operating state in M27 is updated by transmitting the data on the operating state from the system control device 4 by the next polling.

The main control unit 3 collects data on the operating state of each showcase S and the refrigerator R from each terminal-side control unit 6 according to the above procedure. Next, referring to FIG. The display of data in will be described. The microcomputer 24 of the main controller 3 stores the data relating to the operating state such as the internal temperature of each showcase S and the like stored in the RAM 27 and the internal setting temperature stored in the EEPROM 40 for each channel as shown in FIG. Displayed sequentially at 3 second intervals. Therefore, the key switch 37
When the scan switch 76 is pressed, the microcomputer 24 stops switching the display on the channel at the time when the scan switch 76 is pressed as shown in the second row in FIG. Next, as shown in the third to fifth steps in FIG. 15, when the up arrow switch of the display feed switch 77 is pressed, the display returns to the data display of the immediately preceding channel, and when the down arrow switch is pressed, the data of the next channel is displayed. Move on to display.

Here, as described above, the microcomputer 24 of the main control unit 3 is set to use or not use the channel set by the dip switch 52 of the system control unit 4. Therefore, based on this setting, when displaying the data, the microcomputer 24 prohibits the display of unused channels and skips the display to display the next channel. That is, for example, when the channels A03 to A30 are not used, when the display feed switch 77 of the up arrow is pressed from the state where the data of the channel B01 is displayed as shown in the third row of FIG.
Data display of channel A02 is performed by skipping from 03 to A30. The same applies to the reverse operation as shown in the fourth row. When the channel B02 is unused, pressing the down arrow display feed switch 77 from the state where the data of the channel B01 is displayed as shown in the fifth row skips the channel B02 and displays the data of the channel B03. .

Thereafter, when the scan switch 76 is pressed again, the microcomputer 24 returns to a state in which the data of the subsequent channels is displayed every three seconds as shown in the sixth and subsequent rows in FIG. 15. In this case, for example, When the channels B05 to B30 are not used, an operation of skipping the data display of the channels B05 to B30 and shifting to the data display of the channel C01 is performed as shown in the seventh row. As described above, the microcomputer 24 of the main controller 3 sequentially displays the data of each showcase S and the like on the liquid crystal display unit 34 for each channel, and, when an unused channel is set, the data of the channel. Is prohibited and the data of the next channel is displayed. Therefore, it is not necessary to skip the unused channels by pressing the display feed switch 77, and the operability is remarkably improved. In addition, since unnecessary channels are not displayed, confusion such as erroneous recognition as a failure in maintenance etc. is not caused,
Furthermore, even when an intermediate channel becomes unnecessary due to renovation of a store or the like, it is only necessary to set the channel as unused, so that it is not necessary to reassign channels for the whole.

When the check switch 74 is pressed, the microcomputer 24 of the main controller 3 sets the inside temperature of each showcase S within a predetermined temperature range above and below the control temperature set for each showcase S. Is checked for all showcases S, and only the channel numbers of the showcases S that deviate from the temperature range are displayed on the liquid crystal display unit 34.

Further, if the alarm information is included in the data on the operating state transmitted from the system control device 4, the microcomputer 24 informs the fact and generates the data including the alarm information. The channel number of the original showcase S and the like and the contents of the alarm are displayed on the liquid crystal display unit 34. This alarm display is provided by the alarm release switch 73.
Can be erased by the operation of and can be switched to the normal display, but unless the cause of the alarm is resolved,
That is, a predetermined display indicating that an alarm is present is displayed on the liquid crystal display unit 34 until the alarm information no longer exists in the data at the next polling. In addition, since the liquid crystal display unit 34 can only display the amount of 16 characters × 2 lines, when the alarm information that cannot be displayed is received, the displayable alarm information is displayed and the remaining alarm information is displayed. A predetermined display indicating that information is present is performed.

On the other hand, the microcomputer 7 of the central control unit 2 polls the main control unit 3 once a minute also at the time when the main control unit 3 completes the collection of data from each system control unit 4. I do. When the microcomputer 24 of the main control device 3 is polled by the central management device 2, the data relating to the operating state of up to 150 showcases S and the like stored in the RAM 27 is transmitted from the transmission / reception means 28 to the central management device 2. Send.

The central management unit 2 receives and collects the data on the operating state by the transmission / reception means 13 and stores the data on the operating state of up to 150 units for each terminal-side control device 6, that is, for each channel in the hard disk 8. save. Further, the hard disk 8 constantly holds data on the operation status of each terminal-side control device 6 for 24 hours,
Data exceeding 4 hours is updated every minute.

The central management device 2 collects data relating to the operating state of each showcase S and the refrigerator R from each terminal-side control device 6 in such a procedure. Therefore, when it is desired to check the operation state of each showcase S or the like, the business menu is selected by operating the keyboard 21 or the mouse 22 from the standby screen shown in FIG. 6, and the business menu screen shown in FIG. When the uppermost operation check monitor is selected in the state where the display is on, the microcomputer 7 displays a product layout screen shown in FIG. 8 on the display. This product layout screen is created on the case layout creation screen and is displayed based on the information of the product type in the case layout stored in the hard disk 8. The layout of one or a plurality of showcases S is displayed in one frame for each product type. The refrigerator R is displayed on the display 19.

On the product layout screen, the frame of the product stored in the showcase S whose driving state is to be displayed,
For example, when a frame of a fresh fish is selected with the mouse 22, the microcomputer 7, based on the information of the case layout in the hard disk 8, displays a showcase S near the frame of the fresh fish.
The case layout screen of FIG. 9 showing each layout is displayed on the display 19. In this case layout screen, one frame shows one to three showcases S, and the channels of each showcase S are also shown in the frame.
Up to three can be set for each unit).

Next, when the user selects the showcase S, for example, the channel A01, whose operation state is desired to be displayed on the case layout screen with the mouse 22, the microcomputer 7 displays the case information screen shown in FIG. When normal data and data display are selected on this screen, the screen shifts to the data display screen of FIG. On this data display screen, the microcomputer 7 displays on the display 19 the set values of the various operating conditions of the showcase S of the channel A01 stored in the hard disk 8 and the data on the current operating state. Also,
Since the hard disk 8 stores data on the operating state for the past 24 hours, the microcomputer 7 changes the time of the time area at the top of the data display screen with the keyboard 21 so that the microcomputer 7 operates at that time. The status is displayed on the display 19.

As described above, when checking the operating state of the showcase S or the like, first, the layout of the showcase S is displayed on the display 19, and the user selects the showcase S to be displayed while viewing the layout. Thereby, the showcase S can be specified according to the actual installation mode, and the visibility and the operability are significantly improved.
In particular, by adopting a method of shifting from the product layout to the case layout, the showcases S are gradually narrowed down from a large viewpoint, so that even when the number of the showcases S is large, the identification can be performed extremely smoothly. Become.

By operating the keyboard 21 on the data display screen of FIG. 11, the display shifts to the graph display of FIG. On this graph display screen, the microcomputer 7 displays the transition from the data of the operating state such as the inside temperature of the showcase S of the channel for the past 24 hours held in the hard disk 8 on the display 19 in a graph. . Thus, the history of the operating state of the showcase S can be easily confirmed. Also,
The microcomputer 7 prints (prints out) these data and a graph display on the printer 18 in response to a command from the keyboard 21.

Here, when the alarm information is included in the data on the operation state transmitted from the main control device 3, the microcomputer 7 of the central management device 2 firstly displays the showcase S or the like which issues the alarm. Is extracted from the data of the above-mentioned 24 hours for 10 hours retroactively from the time when the alarm is issued, and is transferred to another table in the hard disk 8 and stored. The data for 10 hours is not discarded even if the time has elapsed. next,
The microcomputer 7 has a display 19 as shown in FIG.
Is automatically switched from the state where the standby screen is displayed to the product layout screen shown in FIG. 8, and the frame of the product type (shown by * 1 in FIG. 8) including the showcase S that is issuing the alarm is blinking. Then, the user is warned that an alarm is occurring. When a frame of a blinking product, for example, a frame of ice temperature, is selected with the mouse 22 on the product layout screen,
The microcomputer 7 displays the case layout screen of FIG. In this case layout screen, a showcase S (FIG.
The channel A06) indicated by middle * 1 is blinked.

Next, when the blinking showcase S (channel A06) is selected with the mouse 22 on the case layout screen, the microcomputer 7 displays
Is displayed on the display 19, and when the normal data and the data display are selected on this screen, FIG.
Move to the data display screen of. On this data display screen, the microcomputer 7 sets the various operation conditions of the showcase S of the channel A06 stored in the hard disk 8 and the data on the abnormal operation state, as well as alarm contents (high temperature alarm, low temperature alarm). The alarm is also displayed on the display 19. By operating the keyboard 21 on the data display screen of FIG. 11, the display shifts to the graph display of FIG.
The transition of the data of the operating state such as the inside temperature of the showcase S at 06 is displayed on the display 19 as a graph. This makes it possible to easily confirm the history of past operating conditions that led to the generation of the alarm for the showcase S. The microcomputer 7 prints these data and a graph display on the printer 18 in response to a command from the keyboard 21.

Also, even if 24 hours or more have passed without the user noticing the occurrence of the alarm, the showcase S (channel number A06) of the past 10 hours including the time of the alarm occurrence is stored in the hard disk 8 as described above. Since the data on the operating status of
By selecting the alarm data on the case information screen of FIG. 10, the microcomputer 7 displays the past 24 hours or more data on the data display screen of FIG.
This data is also displayed graphically, and
The microcomputer 7 stores the data in a floppy disk by the floppy disk drive 12 according to a command from the keyboard 21.

[0046]

As described above in detail, according to the first aspect of the present invention, various settings relating to the operating conditions of the terminal-side control device such as each showcase are made by the input means of the host control device, and each showcase is set. And the like, and receives and displays the data on the display means to collectively manage the operating state of the showcase or the like. In particular, the use or non-use of channels can be set in the control means by the setting means of the host controller, so that even if the intermediate channels become unnecessary due to renovation of stores, etc., it is possible to prevent the occurrence of confusion without re-setting all channels. can do.

According to the second aspect of the present invention, based on the setting of the setting means, the control means prohibits the display of the data on the unused channel and displays the data on the next channel. When the data is sequentially displayed for each channel, the user does not need to perform the operation of skipping the unused channels one by one, and the operability is remarkably improved.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a centralized management device such as a showcase of the present invention.

FIG. 2 is a block diagram of an electric circuit of the central management device.

FIG. 3 is a block diagram of an electric circuit of a main control device.

FIG. 4 is a block diagram of an electric circuit of the system control device.

FIG. 5 is a block diagram of an electric circuit of the terminal-side control device.

FIG. 6 is a diagram showing transition of a screen displayed on a display of the central management device.

FIG. 7 is a diagram showing a screen of a task menu displayed on a display of the central management device.

FIG. 8 is a diagram showing a product layout screen displayed on a display of the central management device.

FIG. 9 is a diagram showing a screen of a case layout displayed on a display of the central management device.

FIG. 10 is a diagram showing a case information screen displayed on a display of the central management device.

FIG. 11 is a diagram showing a data display screen displayed on a display of the central management device.

FIG. 12 is a diagram showing a graph display screen displayed on a display of the central management device.

FIG. 13 is a front view of the main control device.

FIG. 14 is a front view of the main control device with a cover opened.

FIG. 15 is a diagram showing a display state of a liquid crystal display unit of the main control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Centralized control device 3 Main control device 4 System control device 6 Terminal side control device 29 Transmission / reception means 34 Liquid crystal display part 37 Key switch 44 Transmission / reception means 46 Transmission / reception means 52 Dip switch 54 Microcomputer 58 Transmission / reception means 66 Sensor S Showcase R Refrigerator

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F25D 11/00 101 F25D 23/00 301

Claims (2)

(57) [Claims] 1. A centralized management device that collectively manages operating states of a plurality of showcases and the like, wherein the centralized management device is provided in a host controller and the plurality of showcases and the like, respectively. A predetermined number of devices can be connected, and a terminal-side control device to which each individual channel is allocated is configured, and the higher-level control device controls operating conditions such as a set temperature of the showcase and the like and a defrosting time. Input means for inputting, transmitting and receiving data input by the input means to the terminal-side control device, transmitting and receiving means for receiving data transmitted from the terminal-side control device, display means, and Control means for displaying on the display means for each channel, and setting means for setting the use state of the channel to the control means. Centralized management device for showcases. 2. The control means, based on the use status of a channel set by the setting means, prohibits the display of data on the unused channel and displays the data on the next channel when there is an unused channel. A centralized management device for a showcase or the like according to claim 1.