WO2018116429A1

WO2018116429A1 - Digital smart showcase warning system, method, and program

Info

Publication number: WO2018116429A1
Application number: PCT/JP2016/088223
Authority: WO
Inventors: 和夫三輪
Original assignee: 株式会社テクノミライ
Priority date: 2016-12-21
Filing date: 2016-12-21
Publication date: 2018-06-28

Abstract

A digital smart showcase warning system (1) is provided with a showcase (10), a refrigerator (20), a control device (40), and a portable device (50). The temperature of the showcase (10) is input over time into a control unit (41) in the control device (40), it is determined on the basis of the input temperatures that the refrigeration function to the showcase (10) is failing, the control unit (41) calculates an expected date and time at which the temperature will rise to a warning temperature (a predetermined temperature that is unsuitably high for refrigeration/freezing of products within the showcase (10)), the control unit (41) uses a notification means (47) to display a warning regarding the expected date and time, and product loss can be prevented by transmitting the warning information to the portable device (50).

Description

Digital smart showcase alarm system, method and program

The present invention relates to a digital smart showcase alarm system, method, and program capable of preventing the occurrence of product loss due to failure of the showcase and refrigeration equipment, gas leakage, frosting, and the like.

In stores such as supermarkets and convenience stores, showcases are used to display beverages and foods while refrigerated or frozen. Refrigerated showcases installed in supermarkets and other stores are equipped with a refrigeration system, and cool air is blown out from the outlet into the showcase storage where products are displayed to cool the interior to a predetermined temperature. The air is sucked from the mouth, cooled again, and discharged as cold air into the cabinet.
The cooling temperature in the cabinet varies depending on the type of goods stored, and the chamber temperature is set for each showcase. The setting of the target temperature in the cabinet is performed by a freezer / refrigerated showcase controller installed for each showcase.
If the target temperature is set, the internal temperature is detected, and the compressor of the refrigeration apparatus is on / off controlled to control the temperature so that the internal temperature approaches the target temperature.

Patent Document 1 describes a temperature detection device that issues an output signal that a malfunction has occurred when the actually measured temperature in the refrigerator continues to exceed the upper limit temperature or the lower limit temperature for a certain period of time. Has been.

Japanese Utility Model Publication No. 3-17188

However, in such a conventional showcase, when the refrigeration function of the showcase fails, it is only a function of notifying that a failure has occurred. For example, since it is a notification after failure, etc., even if a repair company rushes, repairs etc. are not in time, and in many cases, merchandise is often disposed of.

An object of the present invention is to provide a digital smart showcase alarm system, method and program capable of preventing the occurrence of product loss such as showcases.

The digital smart showcase alarm system according to the present invention includes a temperature input means for inputting a temperature in a store of a showcase, a refrigerator or a freezer (hereinafter referred to as “showcase etc.”) over time. Based on the temperature, a failure determination unit that determines that the showcase or the like has failed, and a product in the warehouse such as the showcase is suitable for refrigeration or freezing when the failure determination unit determines that the failure has occurred. It is characterized by comprising a calculating means for calculating the expected date and time when the alarm temperature rises to a warning temperature that is as high as possible, and a notifying means for notifying alarm information including the estimated date and time calculated by the calculating means.

According to this configuration, before the temperature rises to the alarm temperature, it is possible to display an alarm indicating how much time is left until the alarm temperature is reached. Stakeholders can take appropriate measures according to the degree of urgency, and prevent product loss.

When the temperature deviates from a normal temperature change pattern, the failure determination means can determine the failure more accurately by determining the showcase or the like as a failure and viewing the temperature change pattern.

Further, the failure determination means excludes the defrosting period from the determination condition at the time of failure by not determining that the temperature rise is a failure when the temperature of the defrosting such as the showcase is changed. An alarm can be displayed.

In addition, a storage unit that stores calendar information in which the temperature change is accumulated is provided, and the failure determination unit determines that a failure occurs when a difference between the calendar information read from the storage unit and the temperature is greater than a predetermined value. Thus, even if it is determined that the period is the defrosting period, it can be determined from the accumulated information (calendar information) that a failure has occurred, and a delay in execution of control can be avoided.

The notification means can promptly notify the person concerned in a remote place of the urgency level by transmitting the alarm information to a terminal device that can be held by a person who maintains the showcase or the like.

In the digital smart showcase alarm method according to the present invention, a temperature input step for inputting a temperature in a storehouse such as a showcase with time, and the showcase or the like has failed based on the input temperature. When the failure determination step and the failure determination step determine that there is a failure, the product in the store such as the showcase is expected to rise to an alarm temperature that is a high predetermined temperature that is not suitable for refrigeration or freezing. A calculation step for calculating a date and time, and a notification step for notifying alarm information including the expected date and time calculated by the calculation step are provided.

According to the present invention, the computer determines whether the showcase or the like is out of order based on the temperature input means for inputting the temperature in the storage of the showcase or the like over time and the input temperature. When the failure determination means and the failure determination means determine that there is a failure, the expected date and time when the product in the warehouse such as the showcase rises to an alarm temperature that is a high predetermined temperature that is not suitable for refrigeration or freezing is calculated. A program for causing a digital smart showcase alarm system to function as a digital smart showcase alarm system including an arithmetic means and an informing means for informing alarm information including the expected date and time calculated by the arithmetic means.

According to the present invention, when a showcase or the like breaks down and the internal temperature rises abnormally, an alarm is displayed to indicate the degree of failure in an easy-to-understand manner by displaying the expected date and time when the internal temperature rises to the alarm temperature. In addition, since it is possible to take appropriate measures according to the degree of urgency, product loss can be prevented.

1 is a configuration diagram of a digital smart showcase alarm system according to an embodiment of the present invention. It is a block diagram which shows the structural example of the control apparatus of the digital smart showcase alarm system which concerns on embodiment of this invention. It is a flowchart which shows the digital smart showcase warning process of the digital smart showcase warning system which concerns on embodiment of this invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.
(Embodiment)
FIG. 1 is a configuration diagram of a digital smart showcase alarm system according to an embodiment of the present invention.
This embodiment is an example applied to an alarm system for a refrigerated showcase installed in a store.
As shown in FIG. 1, the digital smart showcase alarm system 1 includes a showcase 10, a refrigerator 20, a refrigerant pipe 30, and a control device 40. The control device 40 controls the entire digital smart showcase alarm system 1 and controls the refrigerator 20 and the like of the showcase 10. The installation location of the control device 40 is not limited to this example. For example, the control device 40 may be installed in the machine room 10b at the bottom of the showcase body 10a, or may be installed on the back surface of the showcase body 10a or at a location separated from the showcase body 10a.

[Showcase and refrigerator]
The showcase 10 is installed in a store such as a supermarket or a convenience store, and displays products to be cooled, such as beverages and foods.
The showcase 10 includes a showcase body 10a having a product storage space. A blowout port 11 is formed in the upper part of the showcase body 10a to blow cool air downward, and the cool air that descends along the air curtain is formed in the lower part. A suction port 12 for sucking in is formed. At the bottom of the showcase body 10a, as a machine room 10b, an electromagnetic valve 13 provided in the refrigerant pipe 30, an expansion valve 14 for changing the high-pressure liquid refrigerant into a low-pressure liquid, and a fan motor 15 for circulating cold air are provided. . A cooler (evaporator) 16 is provided on the back side of the showcase body 10a to evaporate the low-pressure liquid refrigerant that has become a low-pressure liquid by the expansion valve 14 while removing heat. The product storage space of the showcase body 10a includes a shelf board 17 that is a display shelf, a bottom plate 18, and an air curtain 19 that covers the product storage space.
The inside of the showcase 10 is cooled to a temperature according to the products displayed on the shelf board 17 and the bottom board 18 (hereinafter referred to as a display shelf).

The air outlet 11 is provided with a temperature sensor 31 for detecting the temperature of the display shelf of the showcase 10 (hereinafter referred to as the temperature of the showcase 10). The blower outlet 11 is a place where a temperature close to the temperature set as a target is detected, and the sensor temperature detected by the temperature sensor 31 is set as the temperature of the showcase 10. In addition, the attachment location and the number of attachments of the temperature sensor 31 are not limited to this example.

The refrigerator 20 is connected to the showcase body 10a via the refrigerant pipe 30. The refrigerator 20 includes a compressor 21, a condenser 22, and a condenser cooling fan 23. The compressor 21 compresses the low-pressure gas returned from the refrigerant pipe 30 and compresses it into a high-temperature and high-pressure (for example, 70 ° C. to 80 ° C.) gas. The compressor 21 increases the pressure of the refrigerant so that the refrigerant is easily changed into a liquid state by the condenser 22 and creates a flow of the refrigerant. The condenser 22 takes the heat of the high-temperature and high-pressure gas refrigerant and turns it into a high-pressure liquid refrigerant (for example, 30 ° C. to 40 ° C.). The condenser cooling fan 23 blows outside air to the condenser 22 to cool the condenser 22.
The refrigerator 20 can cool the plurality of showcases 10 by connecting the refrigerant pipes 30 to the plurality of showcases 10.

The digital smart showcase alarm system 1 constitutes a refrigeration cycle in which a compressor 21, a solenoid valve 13, an expansion valve 14, a cooler 16, and a condenser 22 are connected in a ring shape and can be refrigerated or frozen. As the compressor 21, for example, a rotary type, scroll type, or reciprocating type compressor can be used.

[Control device]
FIG. 2 is a block diagram illustrating a configuration example of the control device 40 of the digital smart showcase alarm system 1.
The control device 40 is installed for each showcase 10, for example, and performs control to cool to a target temperature according to the commodity displayed on the display shelf. The control device 40 may control the plurality of showcases 10 in an integrated manner.
As shown in FIG. 2, the control device 40 includes a control unit 41 (failure determination unit, calculation unit), a storage unit 42 (storage unit), an input unit 43, a display unit 44, a communication unit 45, an interface. An (I / F) unit 46 and a notification unit 47 such as a lamp / buzzer connected via the I / F unit 46 are provided. Temperature information from a temperature sensor 31 that detects the temperature of the showcase 10 is input to the I / F unit 46. Further, a control signal for controlling the compressor 21 is output via the I / F unit 46.

The control unit 41 is configured by a CPU (Central Processing Unit) or the like, controls the entire showcase 10, reads a control program stored in the storage unit 42 in advance, and executes a digital smart showcase alarm program. , Function as a digital smart showcase alarm system.
The control unit 41 detects the temperature of the showcase 10 and controls the temperature of the compressor 21 of the refrigerator 20 by on / off control so that the detected temperature approaches the target temperature.

The control unit 41 inputs the temperature of the showcase 10 over time, and determines that the refrigeration function for the showcase 10 has failed based on the input temperature.
When the temperature of the showcase 10 deviates from the normal temperature change pattern, the control unit 41 determines that the refrigeration function for the showcase 10 is out of order.
The control unit 41 calculates the expected date and time when the temperature rises to an alarm temperature (a predetermined temperature that is so high that the product in the showcase 10 is not suitable for refrigeration / freezing).
The control unit 41 causes the notification unit 47 to display an alarm (displays the expected date and time). Moreover, the control part 41 transmits alarm information to the portable apparatus 50 (terminal device) through the communication part 45. FIG.

The storage unit 42 stores in advance, for example, parameters used for the control unit 41 to issue an alarm in addition to the control program. The storage unit 42 stores calendar information in which temperature changes in the showcase 10 are accumulated. Further, the storage unit 42 stores information related to the control of the showcase 10, information on the temperature of the display shelf transmitted from the temperature sensor 31, and identification information of the portable device 50.

The input unit 43 is an operation unit for inputting the set temperature of the showcase 10 and is, for example, a touch panel, a plurality of keys, buttons, or the like. For example, the input unit 43 receives an input operation for instructing a set temperature, an operation mode, or the like of the showcase 10.
The display unit 44 displays the current status and setting status of the digital smart showcase alarm system 1.
The communication unit 45 transmits / receives data to / from the mobile device 50 via the base station.
The interface (I / F) unit 46 adjusts the level and method of signals input to and output from the control device 40.
The notification means 47 notifies the alarm information of the showcase 10 by light emission by a light emitting element (LED lamp or the like), an alarm by sound / voice. The notification means 47 notifies alarm information including the calculated expected date and time. Note that the display of the notification unit 47 may be a display by the display unit 44.

In this embodiment, a temperature sensor 31 is installed at the air outlet 11, and the sensor temperature detected by the temperature sensor 31 is set as the temperature of the showcase 10. In addition, the attachment location and the number of attachments of the temperature sensor 31 are not limited to this example. Further, if the temperature sensors 31 are installed at various locations in the showcase 10 (for example, for each display shelf) and the temperature inside the showcase 10 is directly detected by these temperature sensors 31, more precise control is possible.

Hereinafter, an operation of the digital smart showcase alarm system 1 configured as described above will be described.
FIG. 3 is a flowchart showing digital smart showcase alarm processing of the digital smart showcase alarm system 1. This flow is performed when the control unit 41 (see FIG. 2) of the digital smart showcase alarm system 1 executes the digital smart showcase alarm program.
First, in step S1, the control device 40 (see FIG. 2) takes in the temperature of the showcase 10 detected by the temperature sensor 31 (see FIGS. 1 and 2).
Steps S2 to S6 perform control to maintain the temperature of the showcase 10 at a temperature within a certain range suitable for storing ice cream (a target temperature between the lower limit temperature and the upper limit temperature).
In step S2, the control unit 41 turns on the compressor 21 (see FIG. 1) of the refrigerator 20. Cold air is blown into the showcase 10 to freeze the product (here, ice cream).
It is determined whether or not the current temperature of the showcase 10 detected in step S3 is lower than the lower limit temperature. While the temperature of the showcase 10 is higher than the lower limit temperature (step S3: No), the process returns to step S3. The compressor 21 operates and continues to supply cool air into the showcase 10.
When the temperature of the showcase 10 is lower than the lower limit temperature (step S3: Yes), the compressor 21 is turned off in step S4.

In step S5, it is determined whether the current temperature of the showcase 10 is higher than the upper limit temperature. While the current temperature of the showcase 10 is lower than the upper limit temperature (step S5: No), the process returns to step S5.
When the current temperature of the showcase 10 is higher than the upper limit temperature (step S5: Yes), the control unit 41 turns on the compressor 21 in step S6.
Step S7 and subsequent steps are the showcase warning process. If the showcase 10 has not failed, the following steps S8 to S10 are skipped, and the refrigeration operation is continued by returning to step S3 again. Thereby, the temperature in the showcase 10 is controlled within a certain range suitable for storage of ice cream.

Here, the cooling temperature in the showcase 10 varies depending on the type of goods stored, and the temperature is set for each showcase 10. Setting of the target temperature in the showcase 10 is set by the input unit 43. The control unit 41 performs target temperature control for keeping the cooling temperature in the showcase 10 at a temperature between the lower limit temperature and the upper limit temperature. Note that the lower the set target temperature, the greater the amount of heat release, and the actual temperature of the showcase 10 becomes higher than the calculated display temperature. For this reason, the target temperature is set in consideration of the relationship between the target temperature and the heat radiation amount.

In step S7, the control unit 41 determines whether or not the temperature of the showcase 10 has deviated from a normal temperature change pattern. When the temperature of the showcase 10 is not deviated from the normal temperature change pattern (step S7: No), the process returns to the above step S3, and when deviated from the normal temperature change pattern (step S7: Yes), the process proceeds to step S8. move on.
The case where the temperature of the showcase 10 deviates from the normal temperature change pattern is a case where the refrigeration function of the refrigerator 20 is broken. When the freezing function of the refrigerator 20 breaks down, the temperature of the showcase 10 deviates from the normal temperature change pattern, and the temperature of the showcase 10 rises. The refrigeration function failure includes failure of the compressor 21, refrigerant leakage from the refrigerant pipe 30, failure of the fan motor 15 and the condenser cooling fan 23.

That is, the abnormal rise in the temperature of the showcase 10 means that the temperature of the showcase 10 rises even though the compressor 21 is turned on (step S6). It can be determined that the temperature of the showcase 10 rises despite the compressor 21 being on because the refrigeration function of the refrigerator 20 is out of order. In other words, the “normal temperature change pattern” of the temperature of the showcase 10 means that the temperature changes from rising to falling when the compressor 21 changes from off to on while the temperature of the showcase 10 is rising. It will be a pattern to do. The control unit 41 compares the normal temperature change pattern with the actual temperature change pattern, and determines the failure of the refrigeration function of the refrigerator 20.

The normal temperature change pattern includes the temperature change pattern during the defrosting operation. The showcase 10 may perform a defrosting operation in which the temperature rises temporarily (in a range where the ice cream does not melt) at regular intervals for defrosting. Temperature rise during defrosting operation is excluded from the warning display.

In step S8, the control unit 41 calculates the expected date and time when the alarm temperature rises. Here, the alarm temperature is a predetermined temperature that is so high that the product in the showcase 10 is not suitable for refrigeration and freezing. For example, ice cream is stored at a set temperature of −26 ° C., but from the viewpoint of product components, the quality deteriorates if the temperature rises longer than −8 ° C. at a time other than defrosting. For this reason, the alarm temperature of ice cream is -8 degrees. For example, a linear prediction method is used to calculate the expected date and time when the alarm temperature rises. Further, “predict continuous data” described in Non-Patent Document 1 can be used.

In step S9, the control unit 41 notifies the alarm information by the notification means 47. The notification means 47 notifies the alarm temperature of the showcase 10 as alarm information by light emission by a light emitting element (LED lamp or the like), sound or sound from a speaker. The alarm information includes a display of the expected date and time when the temperature rises to the alarm temperature and a sound of the expected date and time. By displaying the expected date and time when the alarm temperature rises, the degree of urgency is easily communicated. Thereby, it is possible to display an alarm indicating that the temperature rises to the alarm temperature before the temperature rises to the alarm temperature. Also, the alarm display can be turned off during the defrost period. Depending on the degree of urgency, the alarm information may be highlighted (as the expected date and time are closer, bold characters, enlarged characters, blinking display, etc.).

In step S10, the control unit 41 notifies the portable device 50 of the alarm temperature and ends the processing of this flow. Before the temperature rises to the alarm temperature, the relevant person's portable device 50 can be notified by email of the expected date and time when the alarm temperature will rise to the alarm temperature. Appropriate measures can be taken according to the situation. In addition, it is possible to know a failure of the refrigerator equipment.

In the normal temperature change pattern determination (failure determination) in step S7, the control unit 41 reads the calendar information in which the temperature change in the showcase 10 is accumulated from the storage unit 42, and based on the read calendar information. The temperature change pattern may be determined. By using calendar information that is past accumulated information, failure determination can be performed with higher accuracy.

[Application example]
The refrigerator 20 shown in FIG. 1 cools, for example, a plurality of showcases 10. However, the refrigeration function of the refrigerator 20 may break down. Failures of the refrigeration function of the refrigerator 20 are as follows (1) to (4). (1) Failure of the refrigerator 20 main body, (2) Refrigerant gas leakage from the refrigerant pipe 30 or the like, (3) Failure of the showcase main body 10a (for example, cold air leakage due to breakage of the main body), (4) Frosting of the showcase 10 There is uncooled by. When the malfunction of the refrigeration function occurs, the temperature of the showcase 10 rises. In the present embodiment, the control unit 41 of the control device 40 (see FIG. 2) determines that the refrigeration function of the refrigerator 20 has failed based on the temperature of the showcase 10 input over time. .

The showcase 10 is refrigerated and frozen by setting a preset temperature for each product type in order to maintain the freshness of the product. If the refrigeration function fails, the temperature of the showcase 10 may increase, resulting in an accident in which the set temperature of the product is exceeded and the product is disposed of as a waste product. Conventionally, regarding the temperature rise of the showcase 10, when a preset alarm temperature is reached and a predetermined time has passed, an alarm is communicated to the security company and the person in charge, and the security company or repair company hastened the repair. It was. However, the current situation is that products such as repairs are not in time, and products are often discarded.

Taking a case of an ice cream case (showcase 10) as an example, specific temperature changes and notification modes will be described.
The case setting temperature of the ice cream case (showcase 10) is -26 ° C. As described above, the quality of ice cream deteriorates from the viewpoint of commodity components if the temperature rises over a longer time than −8 ° C. in a time other than defrosting. For this reason, for example, the first stage caution temperature: -16 ° C, the second stage caution temperature: -12 ° C, and the alarm temperature: -8 ° C are set.

Case set temperature is ice cream case: -26 ° C,
(1) When the case temperature reaches -16 ° C, it is detected that it is the first stage caution temperature,
(2) 1st stage caution temperature-Date and time when it rose to -16 ° C: Detected 12:00 on March 13th,
(3) After that, it was detected that the case temperature rose to the second stage caution temperature of -12 ° C at 20:00 on March 16.
(4) The time elapsed from the first stage caution temperature to the second stage caution temperature is 3 days 8 hours 0 minutes (80 hours),
(5) The temperature rise coefficient is 4 ° C./80 hours = 0.5 ° C./hour,
(6) Alarm temperature-Expected date and time to rise to -8 ° C = 2nd stage caution temperature date and time: 3rd 16th 20:00:00 + (Alarm temperature -8 ° C-2nd stage caution temperature-12 ° C) /0.5 = March 16 20: 0 + 3 days 8 hours 0 minutes = March 20 4: 0.

Thus, the control unit 41 of the control device 40 calculates the expected date and time when the alarm temperature rises. In this embodiment, the expected date / time is calculated / predicted based on the date / time at the two stages of the caution temperature, ie, the first stage caution temperature and the second stage caution temperature. May be predicted.

As described above, the quality of ice cream deteriorates if the temperature rises above the set temperature of -8 degrees at times other than defrosting due to demands on product components. For this reason, it is important to send it to the parties concerned earlier. For example, when a warning is notified to a related person after reaching a conventional warning temperature, even if the related person rushes to a local store, the product is lost in time.

As described above, according to the present embodiment, the digital smart showcase alarm system 1 includes the showcase 10, the refrigerator 20, the control device 40, and the portable device 50. The control unit 41 inputs the temperature of the showcase 10 over time, and determines that the refrigeration function for the showcase 10 has failed based on the input temperature. The control unit 41 calculates the expected date and time when the temperature rises to an alarm temperature (a predetermined temperature that is so high that the product in the showcase 10 is not suitable for refrigeration / freezing). The control unit 41 displays the expected date and time as an alarm by the notification unit 47 and transmits the alarm information to the portable device 50.

Conventionally, since the notification is made after the alarm temperature is reached, even if the repair company rushes, the repair is not in time, and the product is often disposed of in the current situation.
According to the present embodiment, the urgency level is easily communicated by displaying the expected date and time when the alarm temperature rises. That is, before the temperature rises to the alarm temperature, it is possible to display an alarm indicating how much time is left until the alarm temperature is reached. A person concerned can take an appropriate response in accordance with the degree of urgency by grasping the warning display (expected date display). For example, when the expected date and time when the temperature rises to the alarm temperature is short as in the above application example, it is possible to take a quick response according to the expected date and time. On the other hand, when the expected date and time when the alarm temperature rises is relatively long, the degree of urgency is low, so a relatively slow response can be taken. In general, the cost of emergency response is higher, so the cost can be reduced in this respect as well.
In any case, instead of detecting and displaying that the temperature has risen to the alarm temperature, an alarm is displayed to indicate that the temperature has risen before the temperature rises to the alarm temperature, thereby reducing product loss due to product disposal. be able to. This is particularly effective when the product is ice cream, frozen food, raw fish or raw meat.

In addition, before the temperature rises to the alarm temperature, notification of the expected date and time when the alarm temperature rises to the portable device 50 of the concerned person such as the maintenance of the showcase by e-mail, so that the urgency level can be quickly given to the person concerned at the remote place. The person concerned can take an appropriate response according to the expected date and time.

In the present embodiment, since it is determined only by temperature measurement that the temperature of the showcase 10 deviates from the normal temperature change pattern, the present embodiment is used as a new device different from the existing temperature control device. The control device or control method can be applied. That is, the control device or the control method of the present embodiment can be applied to a device attached to a ready-made showcase. In this case, a mode of providing a program may be used.

The above description is an illustration of a preferred embodiment of the present invention, and the scope of the present invention is not limited to this, and other modifications are possible without departing from the scope of the present invention described in the claims. Modification examples and application examples are included.
Further, the above-described exemplary embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment. . Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each exemplary embodiment.

For example, the showcase may be a case having a refrigerator-freezer function. The showcase also includes a refrigerator and a freezer. In other words, the showcase is for convenience of explanation, and may be a storage warehouse for frozen and refrigerated goods that does not necessarily show the product to a person, and the same effect can be obtained.

In the above embodiment, the names of the digital smart showcase alarm system and the digital smart showcase alarm method are used. However, this is for convenience of explanation, the name of the device is an alarm device, and the name of the method is a refrigeration. A refrigeration management method or the like may be used.

The air conditioning alarm process described above is also realized by a program for causing the digital smart showcase alarm process to function. This program is stored in a computer-readable recording medium.
The recording medium on which the program is recorded may be the ROM itself of the digital smart showcase alarm system, or a program reading device such as a CD-ROM drive is provided as an external storage device, and the recording medium is provided there. It may be a CD-ROM or the like that can be read by inserting.

Further, the recording medium may be a magnetic tape, a cassette tape, a flexible disk, a hard disk, an MO / MD / DVD, or a semiconductor memory.

The digital smart showcase alarm system, method and program according to the present invention have a great effect when applied to showcases in stores such as supermarkets and convenience stores.

DESCRIPTION OF SYMBOLS 1 Digital smart showcase alarm system 10 Showcase 10a Showcase body 11 Air outlet 12 Suction port 13 Solenoid valve 14 Expansion valve 15 Fan motor 16 Cooler 17 Shelf board (display shelf)
18 Bottom plate (display shelf)
DESCRIPTION OF SYMBOLS 20 Refrigerator 21 Compressor 22 Condenser 23 Condenser cooling fan 30 Refrigerant piping 31 Temperature sensor 40 Control apparatus 41 Control part (failure determination means, calculation means)
42 storage unit (storage means)
43 Input unit 44 Display unit 45 Communication unit 46 Interface (I / F) unit (temperature input means)
47 Notification means 50 Portable device (terminal device)

Claims

A temperature input means for inputting the temperature in the storage of the showcase, refrigerator or freezer (hereinafter referred to as “showcase etc.”) over time;
Failure determination means for determining that the showcase or the like is broken based on the input temperature;
When the failure determination means determines that there is a failure, calculation means for calculating the expected date and time when the product in the store such as the showcase rises to an alarm temperature that is a predetermined temperature that is high enough not to be refrigerated or frozen;
A digital smart showcase alarm system comprising: alarm means for notifying alarm information including the expected date and time calculated by the calculator.
The digital smart showcase alarm system according to claim 1, wherein the failure determination means determines that the showcase or the like is defective when the temperature deviates from a normal temperature change pattern.
The digital smart showcase alarm system according to claim 1, wherein the failure determination means does not determine that a failure has occurred when the temperature rise is a change in the temperature of defrosting of the showcase or the like.
Comprising storage means for storing calendar information accumulating the temperature change;
2. The digital smart showcase alarm system according to claim 1, wherein the failure determination means determines a failure when a difference between the calendar information read from the storage means and the temperature is larger than a predetermined value.
2. The digital smart showcase alarm system according to claim 1, wherein the notification means transmits the alarm information to a terminal device that can be held by a person who maintains the showcase or the like.
A temperature input step for inputting the temperature in the cabinet such as a showcase over time;
A failure determination step of determining that the showcase or the like is failed based on the input temperature;
When the failure determination step determines that there is a failure, a calculation step for calculating an expected date and time when the product in the store such as the showcase rises to an alarm temperature that is a predetermined temperature that is high enough not to be refrigerated or frozen, and
A digital smart showcase alarm method comprising: an alarm step of notifying alarm information including the expected date and time calculated by the arithmetic step.
Computer
Temperature input means for inputting the temperature in the storage of a showcase or the like over time, failure determination means for determining that the showcase or the like has failed based on the input temperature, and the failure determination means If the product is determined to be malfunctioning, the computing means computes the expected date and time when the product in the store such as the showcase rises to an alarm temperature that is a predetermined temperature that is high enough not to be refrigerated or frozen, and the computing means computes The program for functioning as a digital smart showcase alarm system provided with the alerting | reporting means which alert | reports the alarm information containing the said estimated date.