JPH11101543A - Freeze/refrigeration managing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To switch the priority of operation as required by providing means for temporarily switching the priority of operation from the management side to the local side at the local side operating section and providing means for switching the priority of operation from the local side to the management side at the management side operating section. SOLUTION: The operating section 8 of a central management system 1 is provided with means for switching the priority of operation, i.e., a switch. The operating section 2e of a unit 2 connected through a communication path with the central management system 1 is also provided with means for switching the priority of operation, i.e., a switch. Operating conditions of the unit 2 is controlled through operation from the operating section 2e on the local side and the operating section 8 on the management side and priority is given normally to the operation from the central management system 1. But priority is given to the operation from the local unit 2 side, as required, by operating a switch at the operating section 2e of the unit 2. According to the arrangement, priority of operation can be switched as required.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freezing and refrigeration management system, and more particularly to a system for centrally managing a storage device for storing food at a constant temperature, such as a refrigerator or a freezer.

[0002]

2. Description of the Related Art FIG.
FIG. 1 is a block diagram showing an overall configuration of a conventional air conditioner disclosed in Japanese Patent Application Publication No. H10-115,026. In the figure, 17 is a building management unit, 1
8 is an air conditioning system management unit, 19 is a remote controller at hand, 20 is an air conditioning unit composed of an outdoor unit and an indoor unit, 21 is a transmission control unit, and 22 is an air conditioning block transmission conversion unit.

[0003] A conventional air-conditioning management apparatus is configured as shown in the figure, and is usually a building management unit 17 which is a higher-level management system.
Manages the air conditioning unit 20. Then, the air-conditioning block transmission conversion unit 22 detects the operation abnormality of the transmission control unit 21 and switches the setting input for setting the operation state of the air-conditioning unit 20 by the remote controller 19 to the permission state. Also,
The transmission control unit 21 detects an operation abnormality of the air conditioning system management unit 18 and switches a setting input for setting an operation state of the air conditioning unit 20 by the remote controller 19 at hand to a permission state. The air-conditioning system management unit 18 selects the setting input for setting the operation state of the air-conditioning unit 20 by the remote controller 19 to either the prohibited state or the permitted state, selects the priority of the setting input, and sets the building management unit. When the operation abnormality of 17 is detected, the setting input by the remote controller 19 at hand is switched to the permission state.

As described above, the priority of the setting input by the building management unit 17, the air conditioning system management unit 18, and the local remote controller 19, which are the upper-level building management systems, is appropriately selected. Operation is suppressed not only by the building management unit 17 but also by the air conditioning system management unit 18. When an abnormality occurs in the building management unit 17, the air conditioning system management unit 18, and the transmission control unit 21 while the setting input of the local remote controller 19 is prohibited, the function of releasing the setting input prohibited state of the local remote controller 19 is provided.
The centralized management is canceled and the operation control of each air conditioning unit 20 is continued.

When an abnormality occurs in the air conditioning unit 20, the address of the air conditioning unit 20 and the content of the abnormality are transmitted from the air conditioning unit 20 to the building management unit 17 and the air conditioning system management unit 18 so that the building management is performed. Notify the unit 17 and the air conditioning system management unit 18. The building management unit 17 and the air conditioning system management unit 18 that have received the abnormality notify the administrator of the abnormality by displaying the details of the abnormality with respect to the air conditioning unit 20 in which the abnormality has occurred.

Another example of the conventional equipment management system will be described below. FIG.
It is a block diagram which shows the conventional management system of the freezing and refrigeration equipment shown in -221740 gazette. In the figure, 2
3 is a refrigerated warehouse, 24 is a refrigerated facility in the refrigerated warehouse 23, 25 is a central controller for managing the facilities in the warehouse 23, 26, 27, 28, and 29 are peripheral devices of the central controller 25, respectively. Storage device, CRT, keyboard, and printer. 30 is a refrigerator 24
Output signal to the central processing unit 25 from the
This is a signal collecting device for collecting output signals from the refrigerator to the freezing and refrigeration equipment 24. The operation status of the freezing and refrigeration facility 24 is detected by a sensor (not shown) attached thereto, collected by the signal collection device 30, and collected by the CRT 27 of the central processing unit 25.
To be displayed.

FIG. 10 shows a display example output on the screen of the CRT 27. In the figure, reference numeral 31 denotes a refrigerator 24
Is a list of driving states related to the representative parts of FIG.
2 is an installation state diagram of the refrigeration equipment 24 in the refrigeration warehouse 23. Equipment status list 31 and installation status diagram 3
2, for example, are displayed side by side on the screen of the CRT 27 at the same time, and the data detected by the sensors are displayed at corresponding locations in the state list 31 respectively. The administrator can see the display on the CRT 27, know the arrangement of the equipment of the refrigerator 24 in the installation state diagram 32, and grasp the state of the equipment in the refrigerator 24 from the state table 31. If there is an abnormality in the detected data, an operation state list 3 relating to the location where the abnormal data occurs is shown.
1 displays the detected data and the abnormality information, and also displays the location where the abnormality has occurred in the installation state diagram 32. The administrator can check the status list 3
The abnormal location and its state can be grasped from the abnormal data displayed in 1 and the installation state diagram 32.

FIG. 11 is a block diagram showing a detailed structure near the central processing unit 25 constituting this system. The storage device 26 has a status list database 33 and an installation status database 34. The status list database 33 stores data for displaying the status list 31 on the CRT 27. The installation state database 34 stores data for displaying an installation state diagram 32 of the freezing and refrigeration facility 24. Further, the central processing unit 25 includes a database input / output unit 35 serving as an interface with the databases 33 and 34 of the storage device 26, and a CRT 2
7, a data I / F 38 as an interface with the signal collection device 30,
And a data control unit 36 for controlling these. Specifically, the data control unit 36 converts a signal transmitted from the freezing and refrigeration facility 24 via the signal collecting device 30 into data, passes it to the database input / output unit 35 for storage, and sends the data to the state list and installation. It has a function of sending data read from the databases 33 and 34 to the data output unit 37 in order to display a state diagram on a screen. The state table database 33 includes the operating state and the connected refrigeration equipment 2.
The data such as the number 4 and the name of the room in the freezer / refrigerated warehouse 23 is stored. Of the data stored in the state list database 33, fixed data other than the operating state and data of the installation state database 34 are created in advance by a program for creating a database, and the respective databases 33 and 34 are created. Is stored in

Next, the operation will be described. Since the information that can be displayed on the CRT 27 is limited, the data control unit 36
First, an area to be displayed first is set in advance. The data control unit 36 stores the status list database 33 in the storage device 26 based on preset information.
, The data of the operation state list of the equipment on the representative floor and the data of the installation state relating to the floor from the installation state database 34 are retrieved and read. Then, the data is displayed on the CRT 27 through the database input / output unit 35 and the data output unit 37 as shown in FIG.

When the operating state of, for example, a refrigerator in the freezing and refrigeration equipment 24 is changed from stopped to operating, the central processing unit 25 is notified via the signal collecting device 30. The data control unit 36 controls the refrigeration equipment 2 in which the state change has occurred.
4 is stored in the status table database 33 to store the current status, and the CRT 2 is output via the data output unit 37.
Change the display of 7. Further, when an abnormality occurs in, for example, a refrigerator in the freezing and refrigeration facilities 24, the central processing unit 25 is notified via the signal collection device 30, and the abnormality information is received by the transmission I / F 38. The data control unit 36 stores the address and the contents of the refrigeration equipment 24 in which the abnormality has occurred in the state list database 33, and stores the state list and the installation state diagram relating to the refrigeration equipment 24 through the data output unit 37 via the data output unit 37.
Display on RT27.

[0011]

In a management system such as the above-mentioned conventional air-conditioning management device, the building management unit 17,
The priority of the operation is set by the air-conditioning system management unit 18, and the operation by the local remote controller 19 has priority according to the instruction from the building management unit 17 and the air-conditioning system management unit 18. When such a management system is applied to, for example, a management system that manages a refrigerated warehouse 23 in which refrigeration equipment is provided, there are the following problems. For example, when an emergency such as confinement of a person in the refrigerated warehouse 23 or breakdown of the refrigerated equipment occurs, it is necessary to urgently perform an operation from the local side. However, since the local operation priority is set by instructions from the building management unit 17 and the air conditioning system management unit 18 on the management side,
In order to give priority to the operation on the local side, the switching had to be performed on the management side remote from the local side. In this case, processing is delayed when an emergency occurs, and a smooth response cannot be taken. Conversely, in a management system configured to determine the priority of operation not on the management side but on the local side, when the building management unit 17 or the air conditioning system management unit 18 wants to perform an operation, I had to go to the local side and switch, which was very troublesome. In addition, after an abnormality has occurred in a local equipment such as an air conditioning unit, the cause of the abnormality may be removed and the equipment may be adjusted from a local operation unit for recovery. However, there is a possibility that the state of the equipment has been changed due to the abnormality that has occurred or in the process of recovering from the abnormality. For this reason, the administrator has to reset the state of the equipment to return to the state before the abnormality every time the abnormality is restored after the occurrence of the abnormality, which is inefficient.

There is also a problem with the display specifications on the CRT on the management side. That is, in the display as shown in FIG. 10, when an abnormality occurs, the degree of the abnormality is not known to the administrator, and is the same as when displaying in a normal state despite the fact that the content of the abnormality is serious. The contents were displayed. For this reason, in the case of a serious abnormality requiring urgency, there is no means for immediately notifying the administrator of the abnormality.

Further, in the display of the conventional management system shown in FIG. 10, the position information cannot be understood only by displaying the state list. For example, if an abnormality occurs in the freezing and refrigeration equipment 24 as local equipment, if the goods stored in the freezing and refrigerated warehouse 23 are, for example, foods, urgently call on some kind of processing to maintain the freshness. Must be done. In addition, in the ultra-low temperature refrigerated warehouse 23, it is necessary to quickly find out the equipment that has caused the abnormality. In such a case, the user finds out the abnormal equipment in the status list 31 on the CRT display,
From the address or the name, the installation state diagram 32 is checked, the position is confirmed by a map, or the like, and then the user is called. This has the disadvantage that it takes a long time and a quick response cannot be taken. In addition, installation state diagram 3
In No. 2, an installation state database is configured in advance as fixed data on the shape of the warehouse and the arrangement of the equipment, and a different program is created for each warehouse to display the installation state diagram 32. For this reason, to display the installation state diagram 32, a large amount of work has to be performed for each building in the warehouse, which is expensive. Also, it was not easy to change the layout of the installed state or the type of equipment.

The present invention has been made in order to solve the above-mentioned problems.
It is an object of the present invention to obtain a refrigeration management system in which a switching request is made from an operation unit to be given priority and an operation on the operation unit can be immediately given priority on the spot.

Further, according to the present invention, when an abnormality occurs on the local side, the operation is automatically switched so that the operation on the local side is prioritized, and when the abnormality is recovered, the state of the equipment is promptly returned to the state before the abnormality. It is an object of the present invention to obtain a freezing and refrigeration management system.

It is another object of the present invention to provide a refrigeration management system that can easily and quickly confirm the importance of an abnormality that has occurred according to the capability of equipment and the content of the abnormality.

Further, the present invention makes the data structure of the screen to be displayed general-purpose, and does not need to create and display a program corresponding to each warehouse on the local side in advance. It is an object of the present invention to obtain a freezing and refrigeration management system that can display other warehouses if changed.

It is another object of the present invention to provide a refrigeration management system having display specifications so that the state of arrangement of equipment and the current state of the equipment can be understood at a glance.

[0019]

A refrigeration management system according to a first aspect of the present invention is provided on a management side and has a first display unit, a first communication unit, a first operation unit, a first control unit, and storage. And a central control device having a second display unit, a second communication unit, a second operation unit, and a second control unit, which are disposed on a local side separated from the management side and centralized by the central control unit. A local-side switching means provided in the local second operation unit for temporarily switching the management-side operation priority state to the local-side operation priority state; The first operation unit on the management side includes management-side switching means for switching the operation priority state on the local side to the operation priority state on the management side.

According to a second aspect of the present invention, in the refrigeration management system according to the first aspect, when an abnormal state of the equipment is detected by the second control unit, the operation priority state on the management side is locally changed. Temporarily switch to the operation priority state on the side, and at the time of recovery from the abnormal state, the operation side switching means switches the operation priority state on the local side to the operation priority state on the management side, and further sets the operation state stored in the storage unit. The configuration is such that the value is transmitted to the local side via the first and second communication units and reset to the equipment main body.

According to a third aspect of the present invention, there is provided the refrigeration management system according to the first aspect, wherein the first control unit of the centralized management device is locally connected via the first and second communication units. When an abnormal signal including abnormal contents is received, the degree of the abnormality is determined according to the abnormal contents, and the display on the first display unit is changed based on the degree of the abnormality.

According to a fourth aspect of the present invention, there is provided a refrigeration management system according to the first aspect, wherein the storage unit of the centralized management device stores schematic configuration diagram creation data of the location of the equipment and the data of the equipment. A schematic configuration diagram creating means for storing the layout diagram creation data and further creating a schematic configuration diagram of the arrangement location of the equipment on the first display unit with reference to the schematic configuration creation data; The apparatus is provided with a facility device layout drawing creating means for creating a layout of facility equipment with reference to the schematic configuration diagram.

According to a fifth aspect of the present invention, there is provided the refrigeration management system according to the first aspect, wherein the equipment status data is stored in the storage unit of the centralized management device, and stored in the equipment location in the equipment layout diagram. It is provided with status display means for displaying the status of the device.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1 FIG. 1 is a configuration diagram showing a refrigeration management system according to Embodiment 1 of the present invention. 2 and 3 are explanatory diagrams showing a communication sequence according to the present embodiment.

In FIG. 1, reference numeral 1 denotes a centralized management device which is a management side, 2 denotes a local unit such as a freezing and refrigerated warehouse managed by the centralized management device 1, 3 denotes a transmission unit for transmitting a control signal to the unit 2, 4 is a receiving unit for receiving a control signal from the unit 2, and 5 is for analyzing the received signal,
A control unit for creating a signal in accordance with the content operated by the operation unit, 6 is a storage unit for storing data, 7 is a display unit for displaying information, and 8 is an operation unit including a changeover switch as a switching means for switching the priority of operation. is there. The transmitting unit 3 and the receiving unit 4 constitute a communication unit. In the system shown in this embodiment, for example, two units 2A and 2B are connected, and these units 2A and 2B also receive a control signal from the central management device 1 like the central management device 1. 2a, a transmission unit 2b for transmitting a control signal to the central control device 1, a control unit 2c for analyzing and creating a signal, and controlling equipment, a display unit 2d for displaying information, and a changeover switch as a changeover means for changing over the operation priority. And an operation unit 2e. Also in this case, the communication unit is configured by the reception unit 2a and the transmission unit 2b.

Next, the operation will be described. In the refrigeration management system configured as shown in FIG. 1, the operation unit 2e of the unit 2 installed in the local refrigeration warehouse.
The operation state of the unit 2 is controlled by the operation from the operation unit 8 of the centralized management device 1 installed in the central monitoring room or the like on the management side. Normally, the operation from the central management device 1 is prioritized, and the state in the warehouse is monitored in the central management room where the central management device 1 is installed. When the central management device 1 is set to the operation priority, the operation on the operation unit 2e of the unit 2 is prohibited. But,
When carrying in or shipping goods in the freezer warehouse, it is better to set the inside temperature a little lower because the doors are opened and closed. Further, when an abnormality of the unit 2 itself, for example, when a person is trapped in the warehouse occurs, it is necessary to release the set temperature. Further, in the case of an abnormality of the equipment in the unit 2, it is necessary to change the setting of the equipment in the unit 2 and check the abnormal state. In such a case, the changeover switch of the operation unit 2e of the unit 2 is operated to perform switching so that the setting in the unit 2 on the local side has priority.

As described above, according to the present embodiment, a switching request is issued from the operation unit to be given priority as necessary when an abnormality occurs, and the operation on the operation unit is immediately given priority on the spot. A refrigeration management system that can respond smoothly even in an emergency can be obtained.

FIG. 2 is an explanatory diagram showing a communication sequence of this operation. For example, a case where a product in a refrigerator is shipped will be described. When shipping a product, an operator goes to the unit 2 to perform an operation. The local operation priority switching is performed by a switching switch of the operation unit 2e of the unit 2. When the local-side priority is set by the changeover switch, the control unit 2c of the unit 2 makes a determination, and
b, the local-side priority signal A1 is transmitted to the central control device 1. When the central control device 1 receives the signal,
The operation priority of the unit is displayed on the display unit 7. When the operation on the unit side is prioritized, the operation on the central control device 1 is prohibited (B1), and the operation from the unit 2 becomes possible (B2).
).

While the operation of the central control device 1 is prohibited, fine adjustment of each equipment included in the unit 2 is performed by operating the operation unit 2e of the unit 2, and when operations such as shipping and adjustment of the unit 2 are completed, It is necessary to return to the normal state. At this time, switching from the local priority operation to the central management device 1 priority operation is performed by the central management device 1 on the management side. The administrator knows that operation priority is no longer required on the local side, and switches the operation priority to the management side by the changeover switch of the operation unit 8 of the centralized management apparatus 1. Is transmitted. As a result, operation from the operation unit 2e of the unit 2 is prohibited. In addition, the administrator may be notified by communication that the local side no longer requires the operation priority,
The required time can be estimated in the case of product shipment, for example, and it may be decided that the operation priority is switched to the management side after a certain period of time has passed.

In the process of investigating an abnormal state of the unit 2 at the time of local priority and adjusting the equipment, the unit 2
For example, set values of various operating states such as a warehouse temperature, a temperature shift value, and an operating state may be changed. If these various set values are changed, when the operation priority is returned to the management side, the operation is continued with the changed set values, and normal operation may not be performed. For example, if the set value is set higher than the expected set value, it may cause the goods in the refrigerator to become corrupt. Therefore, when switching from operation priority on the management side to operation priority on the local side,
The state before switching to local-side priority is stored in the storage unit 6. When the operation priority on the local side ends and the operation priority is returned to the management side, the set values stored before the switching are called from the storage unit 6, and those set values are sent to the unit 2 by the centralized management device 1 to the unit 2. As a transmission signal A3. The unit 2 is configured to receive the signal A3 of various set values and return to the set value before the switching, so that it is possible to switch to the normal operation with the set contents as expected without the trouble of the administrator. .

As described above, when the local side is provided with the switching means for giving priority to the local operation, and the management side is provided with the switching means for giving priority to the operation on the management side, the local side can be used for shipping of goods or when an abnormality occurs. In the event of an emergency, the equipment can be controlled on the local side promptly, and switching to the management side priority can be quickly performed. Further, when many units are inspected on the local side, it is possible to switch from the management side to the management side at once after the inspection, thereby reducing the load on the administrator.

In the above description, the request for switching the operation priority on the local side is made using the changeover switch of the operation unit 2e of the unit 2. However, the present invention is not limited to this. For example, in the operation unit 2e of the unit 2, the setting contents such as the internal temperature, the temperature shift value, and the operating state are directly changed, and the operation for changing the setting value is requested to perform the operation priority switching to the local side. It may be configured that the switching signal to the local operation priority is automatically transmitted to the central management apparatus 1 assuming that the operation priority is higher. Hereinafter, a communication sequence between the management side and the local side in the automatic switching at the time of abnormality will be described with reference to FIG. In this example, for example, a case will be described in which an abnormality occurs in equipment in a freezing and refrigerated warehouse.

When an abnormality occurs in the equipment of the unit 2, the control unit 2c of the unit 2 detects the abnormality, notifies the central management device 1 of the abnormality (C1), and transmits a local priority signal C2. Upon receiving the abnormality notification signal C1 and the local-side priority signal C2, the central control device 1 displays the abnormality of the unit 2 and the local-side priority on the display unit 7, and switches to the local-side priority state. The administrator confirms the content, goes to the freezer warehouse, and verifies the state of the unit 2. At that time, since the operation priority from the unit 2 has already been set, the set value can be changed using the operation unit 2c, and the abnormal state can be verified. In addition, the local side is automatically set to the priority state at the time of occurrence of the abnormality, so that the administrator can clearly recognize the abnormality of the equipment.

Next, a description will be given of the operation of switching to the management-side operation priority according to the sequence of FIG. 3 after the recovery from the abnormality. In the sequence in FIG. 2, the administrator returns to the central control room with the cause of the abnormality being investigated and the cause removed, and switches from local-side priority to central-management-side priority by the changeover switch of the central management device 1. However, in the sequence shown in FIG. 3, when the abnormality is recovered, the local side transmits an error recovery signal C3 to the management side. After receiving the error recovery signal C3, the management side automatically sends the operation priority signal C4 of the centralized management device 1 and the set value stored in the storage unit 6 of the centralized management device 1 to the local side after a predetermined time has passed. Send (C5). Switched central control device 1
Transmits again to the unit 2 all the set values before switching to the local side priority by the control unit 5, and resets the unit 2 set to the abnormal set value to the original normal set value. The central control device 1 is in an operation prohibited state (D1) from the reception of the local-side priority signal C2 to the transmission of the central-control priority signal C4. On the other hand, the unit 2 transmits the signal C2 of the local side priority and receives the signal C4 of the centralized management priority before transmitting the signal C2.
The unit becomes operable (D2), during which time the unit 2 recovers from an error.

In this sequence, the management side knows the recovery of the abnormality from the abnormality recovery signal C3 and performs the subsequent processing, so that the administrator can automatically recover without having to go back and forth between the local side and the management side. There is. Also,
After the recovery from the abnormal state, when the management side returns to the centralized management priority state again, the set values of various operating states are sent to the local side, so that the set values and devices set in the unit 2 during the abnormality can be replaced. Switching to the normal operation can be automatically performed without considering the automatic shift to the default value caused by the above. As described above, the state of the equipment can be quickly returned to the state before the abnormality, and the refrigeration management system that can be operated smoothly can be obtained.

Embodiment 2 FIG. 4 is a flowchart showing a processing procedure of the centralized management device according to the second embodiment of the present invention. The configuration of the centralized management device according to the present embodiment is the same as that shown in FIG. In the present embodiment,
In the central management device 1, the degree of abnormality is determined, and the display content is changed according to this degree. In the figure, reference numerals 4a to 4e indicate steps of each operation.

In the freezing and refrigeration management system shown in FIG. 1, when an abnormality occurs in the unit 2, the unit 2 notifies the central management device 1 of the occurrence of the abnormality. The central control device 1 previously divides the importance of the abnormality in the unit 2 into, for example, a major failure and a minor failure by the operation unit 8 and stores the source address and the abnormality code relating to the major failure in the storage unit 6. Store it. Here, for example, a minor failure and a major failure due to the source address are distinguished by the capacity of the freezing and refrigerated warehouse, the price of food stored in the warehouse, and the temperature in the warehouse. In addition, a minor failure and a major failure due to the abnormality code are distinguished by the content of the abnormality. For example, a high temperature abnormality is a major failure, and a transmission abnormality is a minor failure.

It is assumed that an abnormality has occurred in the unit 2 during the operation of the freezing and refrigeration management system (step 4a). At the time of occurrence of this abnormality, the centralized management apparatus 1 receives from the unit 2 the source address of the occurrence and the coded error content (error code). Then, the preset source address of the serious failure and the set abnormality content are read from the storage unit 6. The address set in advance as a major fault is compared with the address of the location (point) where the abnormality has occurred (step 4b). If they match,
In step 4d, a "major failure" is displayed on the display unit 7 of the centralized management device 1 to notify the occurrence of a serious failure. If the addresses do not match in the comparison of step 4b, then
It is determined whether or not the generated abnormal code matches the abnormal code that has been set as a major failure in advance (step 4c). If the comparison results in a match, a "major failure" is displayed on the display unit 7 of the centralized management device 1 in step 4d to notify the occurrence of a serious failure. If the abnormal code does not match in the comparison in step 4c, it means that neither the address of the occurrence point nor the abnormal code matches the data stored as the severe failure, and it is determined that the failure is a minor failure.
Displayed as "Minor failure".

According to the above-described processing, the administrator can immediately determine whether the abnormality is a major failure or a minor failure by displaying the failure, and can immediately deal with a serious failure if the failure occurs. In addition, in the case of a slight abnormality, it is possible to deal with it without panic. This allows the administrator to perform management without stress.

When a serious failure occurs, an alarm may be provided to sound an alarm in addition to the display on the display unit. The alarm allows the administrator to recognize a serious failure without looking at the display, so even if the administrator is concerned about other things, the administrator can know the occurrence of a major failure, and a highly reliable management system Can be obtained.

Further, in the present embodiment, the display is divided into two types, a minor failure and a major failure, according to the abnormality that has occurred. However, the present invention is not limited to this, and is divided into a plurality of ranks of three or more levels according to the degree of abnormality. It may be displayed.

Embodiment 3 Hereinafter, a centralized management device according to the third embodiment of the present invention will be described. FIG. 5 is a display example of a CRT screen according to the centralized management device according to the third embodiment. The overall configuration of the refrigeration management system according to the present embodiment is the same as that in FIG. In the figure, 9 is a screen such as a CRT of the central control device, 10 is a schematic configuration diagram of a place where three equipments are arranged, for example, and 11 is a part shown by a dotted line, and the equipments such as a refrigerator in the warehouse. It is a device icon indicating the position of a unit. The freezing / refrigerating warehouse shown here is configured by a raw material refrigerating room, a raw material freezing room, an ultra-low temperature room, stairs, and an elevator (ELV). A plan view showing the layout in the freezing and refrigerated warehouse is displayed by the schematic configuration diagram 10 and the device icons 11.

FIG. 6 is a block diagram showing the configuration of the centralized management apparatus 1 according to the present embodiment, and shows the configuration of the control unit 5 and the storage unit 6 shown in FIG. 1 in detail. In the figure, reference numeral 5a denotes a data control unit which stores set data in a database, processes data for display on the display unit 7, and processes data according to an operation command from the operation unit 8. 5b is a means for creating a schematic diagram of the location, 5c is a means for creating a layout drawing of the equipment, 5d is a database input / output unit, 6a is data for a schematic configuration of the location, 6b is position data for a layout of the equipment, 6c is state data of the equipment.

In the freezing and refrigeration management system, a plan view showing the positional information of the equipment is indispensable. Normally, when displaying a floor plan, since the floor plan is information specific to the property, a dedicated program must be created for each system in advance to display the floor plan and the position information of the equipment before system delivery. Was incorporated. For this reason, every time a system is created, it is necessary to build a program according to the system, and it takes time and effort to create the system. In addition, since the plan view is displayed by the program, if the arrangement of the equipment is slightly changed, a procedure for changing the program itself is necessary. The centralized management device according to the present embodiment enables display of a plan view without creating a program dedicated to the system, simplifies the display of the plan view, and facilitates change.

The centralized management apparatus 1 has a schematic configuration diagram creating means 5b for the location and a layout drawing creating means 5c for the equipment.
These figure creating means 5b and 5c have a data setting function for displaying the figure in advance and a display function for displaying the figure during the management operation based on the set data. First,
As a setting function, a schematic configuration diagram of the arrangement location is created by using the operation unit 8 and the display unit 7 by the arrangement location schematic configuration unit 5b. Here, a floor plan in a warehouse unique to the property, that is, information such as an elevator, a staircase, and a wall representing the inside of the building that stores the equipment is created using a mouse attached to the central management device 1. The created schematic configuration diagram is stored as a schematic configuration diagram data 6a of an arrangement place in the storage unit 6 in the centralized management device 1 using a diagram format such as the BMP method.

Further, as a setting function, data for a layout drawing of the equipment is created by the equipment layout drawing creating means 5c using the operation unit 8 and the display unit 7 as described above. For each floor name or floor number, which is a management number in the schematic diagram of the location, the position data of each equipment such as a refrigerator is displayed. The horizontal and vertical directions of the screen in the schematic diagram of the location are x-axis and Y-axis. And the position where it exists is set as coordinate data (x, y). The coordinate data is stored in the storage unit 6 in the centralized management device 1 together with the address or number as the identification number of the unit as the layout drawing position data 6b of the equipment in a table format, for example.
By creating the data 6a for the schematic configuration diagram of the location and the location data 6b for the location diagram of the equipment as a database, the preparation for displaying the plan view of the local unit as shown in FIG. 5 is completed. The facility device status data 6c is a database that stores data received from the local device via the communication units 3 and 4 in real time, such as the temperature of each local device, during the centralized management operation. .

Next, a process of displaying a plan view of the local unit on the display unit 7 of the central management device 1 during the central management operation will be described. FIG. 7 is an explanatory diagram for explaining this processing. With reference to the schematic configuration diagram data 6a created by the schematic configuration diagram creating means 5b of the arrangement location, a schematic configuration diagram of the arrangement location related to a predetermined unit is displayed on the display unit 7 for each floor. In the display example of FIG. 5, as shown by a solid line, a schematic configuration diagram of an elevator, stairs, walls, and the like representing the inside of the building that stores the equipment is displayed. Next, the arrangement location of the equipment is displayed as a device icon in a manner superimposed on the schematic configuration diagram (process 12 in FIG. 7). The two-dimensional data of the unit related to the floor name or floor number related to the schematic configuration diagram is extracted by referring to the created layout drawing position data 6b by the equipment layout drawing creating means 5b. And
Based on the data, an icon is displayed on the schematic configuration diagram together with the address of the unit set at (x, y). This icon has a predetermined size, for example, and is capable of displaying the operating state, abnormal state, set temperature, and the like of the unit. Further, the status display means (not shown) refers to the equipment status data 6c, and the status of the unit, for example, the current temperature, is displayed in the icon, and the display as shown in FIG. 5 can be realized.

In the case where an operating state switching notification or an abnormality notification is transmitted from the unit, the data control unit 5a of the centralized management apparatus 1 stores the status in the equipment status data 6c as an address or an identification number of the unit. Store with the number. Further, a plan view and an icon relating to the unit are read from the data 6a and 6b, and displayed on the screen as shown in FIG. That is, the display of the floor having the abnormal device or the device whose status has been switched is switched according to the schematic configuration diagram. However, if the floor is already displayed, only the status display in the icon is switched.

In this embodiment, the operation / stop, abnormality, and main set values of the unit are displayed in the icon including the position information, so that at a glance the position information of the unit and the state in which the device is operated are displayed. Can be understood. For this reason,
In an emergency, quick response is possible, and the reliability of the system can be improved. According to the present embodiment,
The data configuration of the screen to be displayed is represented by the schematic configuration diagram data 6a of the location of the equipment and the location data 6 for the location of the equipment.
b and is generalized as a separate configuration. For this reason, it is not necessary to create and display a program according to the local equipment configuration in advance, but to create individual programs. Therefore, it is possible to independently change the schematic configuration diagram of the location and the equipment device layout diagram, and it is easy to change, and it is possible to provide an inexpensive system as compared with creating each program according to the device configuration.

In this embodiment, the central management device 1
In the configuration, there is provided a schematic configuration diagram creating means 5b for arrangement locations, which is a plan view creating function, and a layout drawing creating means 5c for equipment, but a plan view is created in a BMP format using an existing personal computer. The central management device 1 may be stored in the storage unit 6 through a medium such as a floppy disk. In addition, the floor plan at the time of architectural design can be directly read from a scanner or the like, and stored in the storage unit 6 of the centralized management device 1 as a plan view.

Instead of inputting and setting the position of the unit numerically with the two-dimensional coordinate data (x, y) as position information, a mouse or the like is used and the mouse is directly placed on the plan view to set the position. May be input.

Also, the displayed icons can be operated,
The unit may be controlled by operating an icon using a pointing device such as a mouse.

[0053]

As described above, according to the present invention, the first display unit, the first communication unit, the first operation unit, and the first
A centralized management device having a control unit and a storage unit, and having a second display unit, a second communication unit, a second operation unit, and a second control unit,
In a refrigerating and refrigeration management system including equipment that is provided on a local side that is separated from the management side and that is centrally managed by a centralized management device, the refrigeration management system is provided in a second operation unit on the local side, and the operation priority state of the management side Local side switching means for temporarily switching to the local operation priority state, and management side switching means provided in the first operation unit on the management side and for switching the local operation priority state to the management side operation priority state are provided. As a result, if necessary, such as when an abnormality occurs,
A refrigeration management system can be obtained in which a switching request is made from the operation unit to be given priority and the operation on the operation unit can be immediately given priority on the spot.

According to a second aspect of the present invention, in the first aspect, when the second controller detects an abnormal state of the equipment, the operation priority state on the management side is temporarily changed to the operation priority state on the local side. At the same time, when the abnormal state is restored, the local-side operation priority state is switched to the management-side operation priority state by the management-side switching means, and the set values of the operation state stored in the storage unit are changed to the first and second operation states. By transmitting to the local side via the communication unit and resetting to the equipment main unit,
When an abnormality occurs on the local side, the operation of the local side is automatically switched so as to give priority to the operation on the local side, and when the abnormality is recovered, a refrigeration management system that can quickly return the state of the equipment to the state before the abnormality is obtained.

According to a third aspect of the present invention, in the first aspect, the first control unit of the centralized management device transmits an abnormal signal including an abnormal content from the local side via the first and second communication units. When received, the degree of abnormality is determined according to the content of the abnormality, and the display on the first display unit is changed based on the degree of the abnormality. In addition, it is possible to easily and quickly confirm the importance of the abnormality that has occurred, and obtain a refrigeration management system that can improve reliability.

According to a fourth aspect of the present invention, in the first aspect, the storage unit of the centralized management device has a schematic configuration diagram creation data of the arrangement location of the equipment and an arrangement diagram creation data of the equipment. And a schematic configuration diagram creating means for creating a schematic configuration diagram of the arrangement location of the equipment on the first display unit with reference to the schematic configuration creation data, and a schematic configuration diagram with reference to the installation diagram creation data of the equipment It is necessary to make the data configuration of the displayed screen general-purpose and create a program corresponding to each local equipment configuration by providing the equipment layout drawing creation means that creates the equipment layout drawing over the In addition, a refrigeration management system that can easily change the display according to a change in the configuration can be obtained.

According to a fifth aspect of the present invention, in the fourth aspect, the storage unit of the centralized management device has equipment status data, and stores the status of the equipment in the equipment position in the equipment layout diagram. By providing the status display means for displaying, it is possible to obtain a refrigeration management system having display specifications so that the arrangement state of the equipment and the current state of the equipment can be understood at a glance.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a refrigeration management system according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a communication sequence according to the first embodiment.

FIG. 3 is an explanatory diagram showing a communication sequence according to the first embodiment.

FIG. 4 is a flowchart showing a process performed by a centralized management apparatus according to Embodiment 2 of the present invention.

FIG. 5 is an explanatory diagram showing a display example on a CRT screen according to the third embodiment of the present invention.

FIG. 6 is a block diagram illustrating a configuration of a centralized management device according to a third embodiment.

FIG. 7 is an explanatory diagram illustrating a process when displaying a plan view according to the third embodiment.

FIG. 8 is a block diagram illustrating an overall configuration of a conventional air conditioning management device.

FIG. 9 is a block diagram showing a conventional system for managing refrigeration equipment.

FIG. 10 is an explanatory diagram showing a display example of a CRT screen according to a conventional management system.

FIG. 11 is a block diagram showing a detailed configuration near a central processing unit according to a conventional management system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Centralized management device, 2 units, 3 transmitting units, 4 receiving units, 5 control units, 5b Means for creating schematic configuration diagram of arrangement location, 5c Means for creating arrangement diagram of equipment, 6 Storage unit, 6
a data for a schematic configuration diagram of an arrangement place, 6b position data for an arrangement drawing of equipment, 6c equipment state data, 7
Display unit, 8 operation units, 9 screens, 10 schematic configuration diagrams of arrangement locations, 11 device icons.

Claims (5)

[Claims] 1. A centralized management device provided on a management side and having a first display unit, a first communication unit, a first operation unit, a first control unit, and a storage unit, and a second display unit and a second communication unit. And a second operation unit and a second control unit, a refrigeration management system including equipment that is disposed on the local side separated from the management side and is centrally managed by the centralized management device,
Local side switching means provided in the second operation unit on the local side, for temporarily switching the operation priority state on the management side to the operation priority state on the local side, and provided on the first operation unit on the management side; A refrigeration management system comprising management side switching means for switching the local operation priority state to the management side operation priority state. And a second control unit for temporarily switching the operation priority state on the management side to the operation priority state on the local side when the abnormal state of the equipment is detected, and for the management side upon recovery from the abnormal state. The switching means switches the operation priority state on the local side to the operation priority state on the management side, and further transmits the set value of the operation state stored in the storage unit to the local side via the first and second communication units. 2. The refrigeration management system according to claim 1, wherein the refrigeration management system is configured to be reset to the equipment main body. 3. A first control unit of the centralized management device, when receiving an abnormality signal including an abnormality content from the local side via the first and second communication units, determines a degree of the abnormality according to the abnormality content. 2. The display according to claim 1, wherein the display on the first display unit is changed based on the degree of the abnormality.
A refrigeration management system as described. 4. The storage unit of the centralized management device shall have schematic configuration diagram creation data of the arrangement location of the equipment and the above-mentioned equipment layout drawing creation data, and further refer to the schematic configuration diagram creation data with reference to the schematic configuration creation data. (1) A schematic configuration diagram creating means for creating a schematic configuration diagram of the arrangement location of the equipment on the display unit, and the arrangement diagram of the equipment being superimposed on the schematic configuration diagram with reference to the arrangement diagram creation data of the equipment. 2. The refrigeration management system according to claim 1, further comprising means for creating a layout drawing of the equipment to be created. 5. The storage unit of the centralized management device has facility equipment status data, and further comprises status display means for displaying the status of the equipment at the location of the equipment in the equipment layout diagram. 4. The refrigeration management system according to 4.