JP2009236472A - Centralized control device of showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a centralized control device of showcases for restricting key operation of each showcase in a key lock state collectively on the centralized control device side without performing key lock setting operation for each showcase and positively and easily performing control of the showcases when managing and controlling a plurality of showcases collectively by the centralized control device. <P>SOLUTION: In the centralized control device of the showcases in which the plurality of showcases each equipped with control devices 1a, 1b, 1c for controlling temperature setting and lighting by key operation is connected to the centralized control device, the key operation of all of the plurality of showcases is locked by output from the centralized control device. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a central control device for a showcase such as a refrigerator-freezer showcase installed in a store such as a supermarket.

  There are multiple showcases installed in supermarkets and other stores, but centralized control devices that centrally control these showcases without setting the interior temperature, lighting, etc. for each showcase. (For example, see Patent Document 1)

This is a centralized control device comprising a plurality of showcases and a management device that collectively manages the showcases via signal lines, and each showcase is a temperature sensor that detects the temperature in the cabinet And a control device that converts various data including detected temperature and operation status into predetermined transmission data and outputs the data at a predetermined timing, and an interface for transmitting the transmission signal output from the control device to the signal line On the other hand, the management device is provided with a device that displays the operation status of the showcase according to the contents of various data transmitted from each showcase, and displays management as necessary. It is a feature.
Japanese Patent Publication No. 2755297

  In the invention described in Japanese Patent Publication No. 2755297, a plurality of showcases can be centrally controlled by a management device. In this management device, various settings are made by the control device on each showcase side. There is no key lock function to limit operations.

  For this reason, even if the person in charge of the store has set an appropriate value with the management device for the control device of each showcase, for example, the general person can change the setting at his / her own judgment on the showcase side, In such a case, there is a risk that the quality control of the products displayed in the showcase may be hindered by setting an inappropriate temperature.

  In order to lock the various setting keys arranged in the control device so that the setting change on the control device side of each showcase cannot be performed, for example, the mode switching key arranged in each control device is displayed. Each case was individually operated and locked. For this reason, it became a key lock operation for each showcase, and it took time and effort.

  In the present invention, in order to eliminate the above disadvantages, when a plurality of showcases are collectively managed and controlled by a centralized management device, this restriction is also centrally managed when each showcase is set in a key lock state to restrict key operations. The present invention provides a centralized control device for a showcase that can be performed collectively on the device side, and does not require a key lock setting operation for each showcase, and can manage the showcase reliably and easily.

  The present invention according to claim 1 is a centralized control device for a showcase in which a plurality of showcases each having a control device for controlling temperature setting, lighting, etc. by key operation are connected to the centralized management device. The gist is to lock the key operations of all the plurality of showcases by the output from the apparatus.

  As described above, the central control device for a showcase according to the present invention is configured such that each showcase is set to a key lock state when a plurality of showcases each having a control device are collectively controlled by the central control device. When restricting operations, this restriction can also be centrally managed and controlled by the central control device, and it is possible to manage showcases reliably and easily without having to perform key lock setting operations for each showcase. It is.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall explanatory view showing an embodiment of a central control device for a showcase of the present invention, and a plurality of showcases installed in a store such as a supermarket, for example, a showcase for daily delivery, a showcase for meat, The control devices 1a, 1b, and 1c provided in the showcase for frozen foods are connected to a centralized management device 2 installed in an office in a store via a signal line to collectively manage the operation.

  FIG. 7 is a front view of the control device 1 (1a, 1b, 1c) installed in each showcase. As a key for setting the operation content of each showcase, a temperature setting key 3, a freezing / refrigeration operation, and a non-freezing operation are performed. A cold non-switching key 4 for switching between refrigeration operation, a top lighting key 5 for controlling lighting of lighting installed at the top of the showcase, and a shelf for controlling lighting of a shelf lighting key for illuminating a display shelf in the showcase cabinet Illumination keys 6 and the like are arranged on the operation panel, and a display unit 7 on which contents set by these key operations are displayed is provided on the operation panel.

  In order to restrict the key operation by setting various keys provided in the control device 1 installed in each showcase to the key lock state, the key lock operation is performed from the central control device 2 to the control device 1 of each showcase as shown in FIG. Outputs a command.

  As a result, the keys of the control devices 1 of all the showcases are collectively locked, and key operations on each showcase side are restricted. This key lock state is clearly indicated by displaying the characters “LC” on the display unit 7, for example. Therefore, each showcase side recognizes that the showcase is in the key lock state by seeing the display of “LC”.

  In this case, it is possible to set a key lock range. For example, only the top illumination key 5 can be key locked.

  3, when a communication abnormality occurs between the control device 1 and the central management device 2 during key lock, a key lock release command is output from the central management device 2 to the control device 1 during the communication abnormality.

  This is because the central management device 2 and the control device 1 respectively detect problems and abnormalities such as disconnection of the signal line connecting the central management device 2 and each control device 1 and contact failure, and the control device 1 performs centralized management. When there is no communication response with the device 2, the key lock is automatically released.

  In this case, not all keys are unlocked, but only keys that are less likely to cause quality degradation when considering the quality of the products displayed in the showcase, such as the top lighting key 5 only. Can also be done.

  It should be noted that a release switch may be provided at a location where the inspection lid for inspecting the freezer / refrigeration equipment of each showcase is opened.

  FIG. 4 shows that when an abnormality occurs in the showcase, an inspection command is output from the central control device 2 to the control device 1 of the showcase, and the central control device 2 performs an abnormal state check, inspection, change work, etc. Do.

  The quality information for each showcase alone has not been determined by visual inspection directly at the site where the showcase is installed, since it has been difficult to determine the temperature and set values of the showcase obtained with a central control device. There are parts that I do not understand, and it is a laborious work.

  However, by newly setting inspection items on the central control device 2 side and outputting inspection commands according to these inspection items to the control device 1 of each showcase, it is possible to check whether there is an abnormality for each showcase alone. Therefore, when an abnormality occurs in the showcase, it is possible to save the trouble of going to the place where the showcase is set up on the spot and performing the inspection work.

  Here, the abnormality that occurs in the showcase is, for example, an in-chamber transmission error, a sensor disconnection, or a lighting failure when the showcase chamber temperature is higher or lower than the set value.

  By outputting such an inspection command, it is possible to automatically output a key lock operation command after the abnormal inspection is completed, thereby omitting the key lock operation.

  In addition, by outputting an inspection command, quality information such as the maximum temperature, minimum temperature, and average temperature within each showcase can be quickly obtained and appropriate product management can be performed. A unique abnormal state can also be detected by preventing the transition to the next inspection item unless the inspection is completed.

  In addition, by providing an interruption function for inspection, it is possible to temporarily stop and leave the site when necessary. In the case of temporary interruption, the centralized management device 2 can be returned to perform the inspection again from the beginning. I'm sorry.

  And by recording the inspection execution date and time with the centralized management device 2, the quality information can be managed reliably and easily.

  In FIG. 5, when the control device 1 of each showcase is set in the key lock state by the centralized management device 2, a key lock release command is automatically output in a preset specific time zone. Thereby, when it becomes this specific time slot | zone, operation of the various keys of the control apparatus 1 installed in each showcase is attained.

  For example, when there are few customers such as late at night, products may be displayed in the showcase and the set value is changed to the adaptive temperature, or maintenance work such as malfunctions may be performed. It is time-consuming to release the key lock of the installed control device for each showcase alone, but if this setting value change or maintenance work is performed every day at a predetermined time zone, this time zone is set in advance. By setting the time period for automatically releasing the key lock, it is possible to save the trouble of releasing the key lock and improve the workability of the store worker.

  The showcases to be released from the key lock can be all showcases in the store, or a plurality of showcases having the same operating conditions can be grouped together to simultaneously release the key lock.

  FIG. 6 shows that the control device 1 in the showcase is intentionally and forcibly released by the special operation and the setting contents are changed when the control device 1 is in the key lock state by the centralized management device 2. When an abnormal state occurs, the central control device 2 issues an alarm to prevent setting changes. Thereby, the quality deterioration of goods is prevented.

  Further, when the setting content is forcibly changed, the changed content is displayed on the centralized management apparatus 2 so that the change history is left to prevent mischief recurrence.

1 is an overall explanatory view showing an embodiment of a central control device for a showcase of the present invention. It is the whole explanatory view at the time of outputting the key lock command which shows the embodiment of the centralized control device of the showcase of the present invention. It is the whole explanatory view at the time of communication abnormality showing the embodiment of the centralized control device of the showcase of the present invention. It is the whole explanatory view at the time of outputting the inspection command which shows the embodiment of the centralized control device of the showcase of the present invention. It is the whole explanatory view at the time of outputting the key lock release command which shows the embodiment of the centralized control device of the showcase of the present invention. It is the whole explanatory view when the abnormal state occurs in the showcase which shows the execution form of the central control device of the showcase of this invention. It is a front view of the control device by the side of the showcase which shows embodiment of the centralized control device of the showcase of this invention.

Explanation of symbols

1, 1a, 1b, 1c Control device 2 Central control device 3 Temperature setting key 4 Cold non-switching key 5 Top illumination key 6 Shelf illumination key 7 Display unit

Claims (5)

  In a central control device of a showcase in which a plurality of showcases each having a control device for controlling temperature setting, lighting, and the like by key operation are connected to the central management device, the plurality of units are output by the output from the central management device A central control device for a showcase that locks the key operations of all showcases.   In a central control device of a showcase in which a plurality of showcases each having a control device for controlling temperature setting, lighting, and the like by key operation are connected to the central management device, the plurality of units are output by the output from the central management device The key lock release command is output when a communication abnormality occurs between the central control device and each control device with the key operations of all the showcases locked. Centralized control device.   In a central control device of a showcase in which a plurality of showcases each having a control device for controlling temperature setting, lighting, etc. by key operation are connected to the central control device, A central control device for a showcase, wherein an inspection command is output.   In a central control device of a showcase in which multiple showcases each equipped with a control device that controls temperature settings, lighting, etc. by key operation are connected to a central control device, a key lock release command is output at a specific time zone Centralized control device for showcases characterized by   In a central control device of a showcase in which a plurality of showcases each having a control device for controlling temperature setting, lighting, and the like by key operation are connected to the central management device, the plurality of units are output by the output from the central management device A centralized control device for a showcase, characterized in that when the setting operation is changed by the control device on the showcase side in a state where the key operations of all the showcases are locked, the changed contents are displayed on the centralized management device.

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