KR102249429B1 - Control apparatus and system of refrigerating/freezing and method thereof - Google Patents

Abstract

The present invention relates to a refrigerating or freezing control apparatus and system and a method thereof. The refrigerating or freezing control system comprises: a storage space having a wall, a floor, and a ceiling and having a plurality of divided storage areas; a plurality of temperature sensors distributedly installed on the ceiling of the storage space to measure the temperatures of the plurality of divided storage areas; a cooler installed on one side of the storage space; a plurality of cold air supply units respectively installed on the ceilings of the plurality of divided storage areas, including outlets for discharging cold air, transported from a cold air transport pipe connected to the cooler, to each storage area, and having dampers provided in the outlets; and a temperature or cold air control device which is installed outside the storage space, receives temperature information measured from the temperature sensors, checks whether the temperatures change based on the received temperature information, controls the opening and closing areas of the dampers provided in the cold air supply units to adjust the amount of supply of cold air to the storage areas where it is checked that the temperatures change, checks whether the temperatures of the storage areas have reached set temperatures after a period of time has elapsed, determines that an abnormality has occurred, and transmits, to a registered terminal, an abnormality occurrence notification including at least the location information of the storage areas, if the temperatures of the storage areas do not reach the set temperatures as a check result, and determines that an abnormality has occurred, and transmits, to the registered terminal, an abnormality occurrence notification including at least location information of the storage areas where the temperature abnormality has occurred, if an abrupt temperature change is detected within a set time based on the received temperature information. Therefore, the refrigerating or freezing control system can automatically adjust the temperatures of the storage areas by adjusting supply of cold air to the storage areas when the temperatures thereof are abnormal.

Description

Refrigeration/refrigeration control device, system, and method thereof {CONTROL APPARATUS AND SYSTEM OF REFRIGERATING/FREEZING AND METHOD THEREOF}

The present invention relates to a refrigeration and refrigeration control technology, and in particular, by detecting at least one of a change in the internal temperature of a storage space, a change in the weight of the storage, and a loading amount of the storage to adjust the intensity and supply amount of cold air, the internal temperature is automatically constant It relates to a refrigeration/freezing control device, system and method thereof that can be maintained.

In general, a refrigeration and refrigeration system applied to a storage warehouse has a compressor and a condenser installed on the inner bottom of the storage space. The refrigerant liquefied in the condenser is supplied to an evaporator provided in the storage chamber, and the refrigerant is converted into gas in the evaporator, and a large amount of heat inside the storage space is absorbed to cool the storage warehouse.

On the other hand, when the refrigeration and refrigeration system is installed on the ceiling of the storage warehouse, it is advantageous in terms of maintaining the storage condition of goods evenly by maximizing the use of space inside and outside the storage space, and evenly delivering cool air to the inside of the storage space.

However, as the space of the storage warehouse becomes larger and the types of goods are diversified, the limitation of simply supplying cold air is seen, so technical improvement to increase the storage quality and storage efficiency is required.

In addition, the existing refrigeration and refrigeration system has a problem in that the temperature and the intensity of cold air cannot be set as needed from the outside, and even if an abnormal temperature occurs, it is not possible to respond immediately.

Korea Public Utility Model 20-2011-0008534 (2011.09.01)

It was conceived to improve the above-described conventional problem, and an object of the present invention is to divide the storage space into a plurality of storage areas, and detect temperature changes in each of the divided storage areas, thereby controlling the cold air for the storage area. It is to provide a refrigeration/freezing control system that can automatically perform temperature control.

In addition, another object of the present invention is to reduce power consumption and efficiently use energy by detecting a change in the weight of the storage or a change in the loading amount of the storage, and adjusting the intensity and supply of cold air according to the change in the weight or loading of the storage. It is to provide a refrigeration/freezing control system.

In addition, another object of the present invention is to provide a plurality of temperature sensing sensors distributed and installed in each of a plurality of storage areas divided into a storage space, and perform temperature sensing for each of the storage areas, so that a storage area in which a temperature abnormality occurs is real-time. It is to provide a refrigeration/refrigeration control system that can detect and notify an abnormality when temperature control for the storage area fails at the same time.

One embodiment of the present invention for achieving the above object is a storage space having a wall surface, a floor, and a ceiling, and having a plurality of divided storage areas; A plurality of temperature sensors distributedly installed on the ceiling of the storage space and measuring temperatures of the divided plurality of storage areas; A cooler installed on one side of the storage space; A plurality of cold air supply units installed on the ceilings of the divided plurality of storage areas, each including an outlet for discharging cold air transported from the cold air transport pipe connected to the cooler to each storage area, and having a damper at the discharge port; And installed outside the storage space, receives temperature information measured from the temperature sensor, checks whether a temperature change is based on the received temperature information, and adjusts the amount of cold air supplied to the storage area where the confirmed temperature change occurs. Control the opening and closing area of the damper provided in the cold air supply unit so that it is checked whether the temperature of the storage area has reached the set temperature after a certain period of time, and as a result of the check, if the temperature of the storage area does not reach the set temperature, When it is determined that an abnormality has occurred and an abnormality occurrence notification notification including at least the location information of the storage area is performed to the registered terminal, and a sudden change in temperature within a set time is detected based on the received temperature information, it is determined that an abnormality has occurred. It provides a refrigeration/refrigeration control system including a temperature/cooling control device that performs an abnormality occurrence notification notification including at least location information of a storage area in which a temperature abnormality has occurred to a registered terminal.

The refrigeration/freezing control system further includes a weight sensing sensor installed on the floor of the divided plurality of storage areas, wherein the temperature/cooling control device detects at least one change of temperature change and weight change, The intensity and supply amount of cold air is adjusted according to the detected degree of change, but in the case of the weight change, if the change with the previous weight is determined as an increase in weight based on the weight information received from the weight detection sensor, the cold air is stored in the corresponding storage area. The opening and closing area of the damper provided in the cold air supply unit is controlled to be concentrated, and when it is determined that the weight is reduced, the opening and closing area of the damper is controlled to reduce the supply amount of cold air.

The refrigeration/freezing control system includes a barcode attached to the surface of the storage object; And a barcode reader provided near the entrance of the storage space and reading the barcode; wherein the temperature/cooling control device includes at least one change of a temperature change, a weight change, and a change in loading amount according to information about entering and leaving the storage. Is detected, and adjusts the intensity and supply amount of cold air according to the detected change, but when a change in the loading amount according to the loading/unloading information of the storage is detected, the loading/unloading information generated through barcode reading of the storage object is stored with the barcode reader, and loading It is characterized in that the intensity of the cold air is adjusted according to the increase or decrease in the loading amount of the stored storage.

According to the present invention, by providing a plurality of temperature sensing sensors distributed in the storage space to detect temperature abnormalities and to control the supply of cold air to the storage area in which the temperature abnormality is detected, the temperature is automatically kept constant without the intervention of a manager. It has the effect of storing stored items.

In addition, according to the present invention, the storage space is divided into a plurality of storage areas to individually supply cold air, but by adjusting the degree of opening and closing of the cold air supply unit, the supply amount of cold air can be adjusted according to the change in the weight of the storage material. As a result, unnecessary power consumption can be reduced, and storage quality and storage efficiency are improved.

In addition, according to the present invention, by detecting at least one of a change in weight and a change in loading amount of the stored material, and using this to adjust the intensity and supply amount of cold air, there is an effect that the quality of the stored material can be improved and energy can be efficiently used.

In addition, according to the present invention, after a temperature abnormality is detected and an attempt is made to maintain the temperature through cold air control, when the temperature maintenance fails, a notification of the occurrence of the abnormality is notified to the registered terminal, thereby enabling the administrator to quickly manage the system. There is.

1 is a block diagram schematically showing the overall configuration of a refrigeration/freezing control system according to an embodiment of the present invention.
FIG. 2 is a perspective view schematically showing the exterior of a storage space implementing the refrigeration/refrigeration control system shown in FIG. 1.
3 is a perspective view schematically showing the interior of a storage space in the refrigeration/refrigeration control system shown in FIG. 1.
4 is an exemplary view schematically showing a configuration of supplying cold air to each storage area in the refrigeration/freezing control system shown in FIG. 1.
5 is a flowchart illustrating a method of controlling refrigeration/freezing in the refrigeration/freezing control system according to an embodiment of the present invention.
6 is a flowchart illustrating a method of detecting an abnormality in the refrigeration/freezing control method of the refrigeration/freezing control system according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In this case, the same components in each drawing are indicated by the same reference numerals as possible. In addition, detailed descriptions of already known functions and/or configurations will be omitted. In the following, a portion necessary for understanding an operation according to various embodiments will be mainly described, and descriptions of elements that may obscure the subject matter of the description will be omitted. In addition, some elements of the drawings may be exaggerated, omitted, or schematically illustrated. The size of each component does not fully reflect the actual size, and therefore, the contents described herein are not limited by the relative size or spacing of the components drawn in each drawing.

In describing the embodiments of the present invention, when it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout the present specification. The terms used in the detailed description are only for describing the embodiments of the present invention, and should not be limiting. Unless explicitly used otherwise, expressions in the singular form include the meaning of the plural form. In the present description, expressions such as "comprising" or "feature" are intended to refer to certain features, numbers, steps, actions, elements, some or combination thereof, and one or more It should not be construed to exclude the presence or possibility of other features, numbers, steps, actions, elements, any part or combination thereof.

In addition, terms such as first and second may be used to describe various components, but the components are not limited by the terms, and the terms are used to distinguish one component from other components. Is only used.

1 is a block diagram schematically showing the overall configuration of a refrigeration/freezing control system according to an embodiment of the present invention.

Referring to FIG. 1, a refrigeration/freezing control system 1 according to an embodiment of the present invention includes a storage space for storing a storage material, and a temperature/cold air control device 15 for controlling temperature and cold air in the storage space. ), and a cooler 16 that outputs cool air under the control of the temperature/cool air control device 15, and a cool air supply unit 17 that supplies cool air output from the cooler 16 to each storage area of the storage space. It is composed of.

The refrigeration/freezing control system 1 according to the present invention may include at least one of a temperature sensor 11, a weight sensor 12, and a barcode reader 13, and a temperature sensor 11 and a weight The detection sensor 12 may be distributedly installed at an appropriate location in the storage space, and the barcode reader 13 may be installed near an entrance door or implemented in the form of a portable terminal so as to operate when entering and leaving the storage. At this time, the barcode 14 may be attached to the outer surface of the storage object, and the storage space may be divided into a plurality of storage areas so that the storage space can be classified and stored according to the type of the storage object.

The refrigeration/freezing control system 1 according to an embodiment of the present invention detects a change in at least one of a change in temperature inside a storage space, a change in the weight of the stored storage, and a change in the loading amount of the storage, and detects a change in the sensed temperature, The set temperature can be maintained by controlling the cold air according to the change in weight and load.

Specifically, a plurality of temperature sensing sensors 11 are provided to detect the temperature inside the storage space and distributed in the storage space, but at least one is installed for each storage area, and identification that can identify the installed storage area It is assigned a number and can be stored. For example, the temperature sensor 11 may be installed on the upper ceiling or wall of each storage area, or installed on an adjacent shelf, but is not limited thereto, and is suitable to detect the rise and fall of the temperature of the storage area. Can be installed on site. That is, the installation place of the temperature sensor 11 may be installed at a place where temperature management is required.

The temperature sensing sensor 11 senses the temperature of the installed location and transmits the sensed temperature information to the temperature/cooling control device 15. At this time, the temperature sensor 11 transmits the sensed temperature information and the identification number together so that the temperature/cooling control device 15 can identify the location of the storage area.

The temperature sensor 11 may be one of various types of devices that can measure temperature, such as a thermistor or an infrared thermometer.

In addition, the weight sensor 12 is preferably installed on the floor to measure the weight of the stored items loaded in each storage area of the storage space, and for this purpose, a weight sensor 12 is built-in at the bottom of each storage area. A device capable of measuring weight in the form of a pallet may be provided, and an identification number for identifying an installed storage area may be assigned to the weight detection sensor 12 and stored. Here, the weight detection sensor 12 may be implemented as various types of devices capable of measuring weight, such as a pressure sensor or a digital scale.

The weight detection sensor 12 detects a change in weight due to additional loading or delivery while the storage material is loaded in each storage area, and transmits the detected weight information to the temperature/cold control device 15 do. At this time, the weight detection sensor 12 transmits the sensed weight information and the identification number together, so that the temperature/cooling control device 15 can identify the location of the storage area where the weight change occurs.

In addition, the barcode reader 13 is installed at the entrance of the storage space, reads the barcode 14 of the storage object when entering and exiting the storage object, and transmits the acquired barcode information to the temperature/cooling control device 15. To this end, the barcode 14 is attached to the outer surface of the storage object, and the barcode 14 may include at least information such as the type, storage temperature, and weight of the storage object.

The barcode reader 13 may be electrically connected to the temperature/cooling control device 15. However, the present invention is not limited thereto, and may be linked through short-range communication or through a network by providing a communication unit (not shown). In addition, the barcode reader 13 is implemented in the form of a portable terminal and can be carried by an administrator.

And, the temperature/cooling control device 15 is installed outside the storage space, and when information on at least one of temperature, weight, and load is received, it checks whether there is a change using the received information, and The cooler 16 and the cold air supply unit 17 are controlled to adjust the cold air accordingly. That is, the temperature/cold air control device 15 controls a local supply amount of cold air through temperature detection and weight detection, and may determine the intensity and supply amount of cold air in the entire storage space through the load amount detection.

For example, the temperature/cold control device 15 receives temperature information and identification information from the temperature sensor 11, compares the received temperature with a set temperature to check whether the temperature has changed, and the storage area from the identification information. Check the location of.

That is, the temperature/cold air control device 15 controls the cooler 16 to increase the intensity of cold air when the temperature increase in the storage area is confirmed, or blocks the supply of cold air from the cold air supply unit in another storage area, and the cold air supply unit ( With 17), it is possible to control the opening and closing area of the dampers provided in each cold air supply unit so that more cold air is supplied. This supply of cold air is continued until the temperature of the storage area reaches the set temperature. After that, when the temperature of the storage area reaches the set temperature, the supply of cold air is stopped, and the temperature reaches the set temperature even after a certain period of time has elapsed. If not, the temperature/cold control device 15 determines that an abnormality has occurred and controls the communication unit (not shown) to notify the registered terminal of an abnormality occurrence notification including location information of the storage area where the temperature abnormality has occurred. This allows the manager to quickly recognize the location of the temperature abnormality and take appropriate action.

For another example, the temperature/cooling control device 15 receives weight information and identification information from the weight detection sensor 12, compares the received weight with the last measured weight, and checks whether or not there is a change in weight, and the identification information Check the location of the storage area from. That is, the temperature/cold air control device 15 adjusts the intensity and supply amount of cold air according to the confirmed weight change. If the weight change is weight reduction, the cold air supply unit 17 reduces the supply amount of cold air that was previously supplied to the storage area. It is possible to control the opening and closing area of the damper provided at the outlet of the, and if the weight change is an increase in weight, the opening and closing area of the damper provided at the outlet of the cold air supply unit 17 can be controlled to increase the supply amount of cold air to the storage area.

In other words, when the weight change is increased, the temperature/cold air control device 15 increases the intensity of cold air in proportion to the increased weight or increases the supply amount of cold air to quickly drop the temperature of the storage to a set temperature, and weight If the change is reduced, it is possible to reduce wasted power consumption by lowering the intensity of cold air in proportion to the reduced weight or by reducing the amount of cold air supplied. Here, the change in weight is one of the factors for determining that the load of the storage is increased or decreased.The change in the local load is detected using a weight detection sensor, and the storage space through the storage information received and released using a barcode. Changes in overall loading can be detected.

For another example, the temperature/cooling control device 15 receives barcode information acquired from the barcode reader 13, and obtains and stores information such as the type, storage temperature, weight, and quantity of the storage object from the barcode information. Then, the temperature is set using the type and storage temperature of the stored material, and the intensity of cold air of the cooler 16 is controlled based on the weight and quantity of the stored material. In other words, through the information obtained from the barcode information, the quantity of stored goods and the quantity of goods shipped can be checked, and through this, the amount of storage loaded in the storage space is calculated, and based on the calculated load, the intensity of cold air and the supply amount Can be adjusted. For example, the temperature/cooling control device 15 controls the cooler 16 to lower the intensity of cold air in consideration of the amount of load remaining after the storage is released, and adjusts the temperature according to the type of storage that is stored when the storage is stored. It is controlled to increase the intensity of cold air of the cooler 16 in consideration of the amount of loaded load.

In addition, the temperature/cold air control device 15 may have a separate database management server to store and manage storage information, and set temperature, weight information for each storage area, and load amount information of storage items loaded in the storage space. , Storage information (type of storage, storage temperature, weight, etc.), identification information on the storage area in which the temperature sensor 11 and the weight sensor 12 are installed are stored. Through this, the user can check the loaded food information by accessing the database management server using the user terminal.

In addition, when the entrance door (not shown) of the storage space is opened, the temperature/cool air control device 15 increases the supply amount of cold air supplied to the cold air supply unit 17 near the entrance door to prevent heat loss and increase the internal temperature. Can be controlled to slow down.

Then, the cooler 16 generates and discharges cold air under the control of the temperature/cool air control device 15. The cooler 16 has a cold air transport pipe connected to the cold air supply unit 17 on one side, and may be provided with a discharge port at the front to discharge cool air to the storage space, and a blower fan operated by driving a motor therein. It is configured to be able to discharge cold air forward. Since the cooling operation of the cooler 16 corresponds to a general known technique, a detailed description thereof will be omitted.

In addition, the cold air supply unit 17 is connected to the cooler 16 through a cold air transport pipe (not shown), and receives the cold air discharged from the cooler 16 from the cold air transport pipe and supplies it to each storage area.

In addition, a plurality of cold air supply units 17 are provided and are installed on the ceiling so as to be located above each storage area, and a damper is provided at an outlet through which the cold air is discharged, and a required amount of cool air is discharged by adjusting the opening area of the damper.

The cold air supply unit 17 may be configured such that an opening/closing area of a damper provided at an outlet through which cold air is discharged can be controlled by the temperature/cool air control device 15. That is, the temperature/cold air control device 15 may control the opening and closing area of the damper provided at the outlet of the cold air supply unit 17 to control the amount of cold air supplied to each storage area.

Meanwhile, although not shown, the temperature/cooling control device 15 may include a communication unit, and the communication unit transmits an abnormality occurrence notification to the registered terminal under the control of the temperature/cooling control device 15.

Such a communication unit transmits an abnormality occurrence notification to the administrator's terminal through a wired/wireless network, and may include a repeater for long-distance transmission. Here, the wireless network is for establishing wireless communication, and includes wireless LAN (WLAN), DLNA (Digital Living Network Alliance), Wireless Broadband: Wibro, Wimax (World Interoperability for Microwave Access: Wimax), and HSDPA. (High Speed Downlink Packet Access), High Speed Uplink Packet Access (HSUPA), IEEE 802.16, Long Term Evolution (LTE), Long Term Evolution-Advanced (LTEA), Wireless Mobile Broadband Service : WMBS), etc. can be applied. However, the present invention is not limited thereto, and may be applied in various ways according to the development of wireless communication technology.

As described above, according to the refrigeration/freezing control system according to an embodiment of the present invention, a temperature sensor is provided to detect a temperature abnormality, and an administrator's intervention by controlling the supply of cold air to a storage area in which the temperature abnormality is detected. Not only can the temperature be kept constant automatically without it, but it can also keep the stored items fresh.

In addition, according to the present invention, by providing a plurality of temperature sensing sensors distributed in each storage area and performing temperature sensing for each storage area, a storage area in which a temperature abnormality occurs is detected in real time and at the same time, the temperature for the storage area is If the control fails, it is judged that an abnormality has occurred and is notified, thereby allowing the administrator to quickly manage the system.

FIG. 2 is a perspective view schematically showing the exterior of a storage space implementing the refrigeration/refrigeration control system shown in FIG. 1, and FIG. 3 is a schematic view showing the interior of the storage space in the refrigeration/freezing control system shown in FIG. It is a perspective view.

2 and 3, in the refrigeration/freezing control system according to an embodiment of the present invention, the storage space 10 is a hexahedral space using concrete or prefabricated panels having walls, floors and ceilings. It may be implemented as a warehouse-type storage unit consisting of, and one side is provided with an entrance door 20 for storage in and out for storage, and a temperature/cold control device 15 may be installed at a location adjacent to the entrance door 20 . In one embodiment of the present invention, the temperature/cooling control device 15 is implemented in a form installed adjacent to the door 20, but is not limited thereto, and the design is appropriately changed to a location where management and operation of the administrator are easy. This is possible.

In addition, the cooler 16 may be installed on a wall or ceiling on one side of the interior of the storage space 10, and although not shown, electrical equipment connecting the cooler 16 and the temperature/cooling control device 15 may be a ceiling or It can be installed through the wall.

In addition, the cooler 16 is installed to face the door 20, but is not limited thereto, and may be installed on the wall or ceiling of the door 20 side, and the location can be appropriately changed for efficient cooling. Do.

In addition, the storage space 10 may divide the internal space into a plurality of storage areas, and a shelf 30 may be installed in the storage area to load storage.

A weight sensor may be provided on the lower floor of each shelf 30 to be implemented to detect the weight of the storage material loaded on the shelf. Through weight sensing, the temperature/cooling control device 15 may adjust the amount of cold air supplied according to the increase or decrease of the weight.

In addition, in the embodiment of the present invention, the storage area may be provided on both sides of the central passage with the passage for moving the storage material in the center.

4 is an exemplary view schematically showing a configuration of supplying cold air to each storage area in the refrigeration/freezing control system shown in FIG. 1.

4, the storage space 10 can divide the internal space into a plurality of storage areas. In this embodiment, the storage space 10 is divided into 6 storage areas (A, B, C, D, E, F). , It is provided on both sides based on the passage for storage and storage.

The cooler 16 and the cold air supply unit 17 are connected by a cold air transport pipe 40, and the cold air discharged from the cooler 16 is supplied to the cold air supply unit 17 of each storage area through the cold air transport pipe 40. Can be.

In the present embodiment, a plurality of cold air supply units 17 have been described as being connected to one cold air transport pipe 40, but the present invention is not limited thereto, and the cooler and each cold air supply unit may be connected to each other through individual cold air transport pipes. May be.

Each storage area (A, B, C, D, E, F) is provided with a temperature sensor 11 and a weight sensor 12, but according to this embodiment, the temperature sensor 11 is each storage area It may be installed on the ceiling of, and the weight sensor 12 may be installed on the floor of each storage area. When the shelves are installed in multiple layers in each storage area, the weight sensor 12 may be installed on the bottom surface of the shelves in each layer.

The temperature detection sensor 11 detects the temperature of the installed storage area, and transmits temperature information sensed in real time or at regular intervals to the temperature/cooling control device 15.

Then, the temperature/cold air control device 15 detects a temperature change using the transmitted temperature information, and may detect the temperature change by comparing the set temperature with the transmitted temperature. When a temperature change is detected, the temperature/cool air control device 15 controls the cooler 16 and the cool air supply unit 17 to adjust the intensity and supply amount of cool air in the storage area where the temperature change occurs.

In an embodiment of the present invention, the search for the location of the storage area where the temperature change occurs is by assigning an identification number to the temperature sensor 11 and storing a matching table in which the identification number and the storage area are matched. 15) can identify the storage area using the identification number of the temperature sensor 11.

On the other hand, the weight detection sensor 12 detects the weight of the installed storage area, and transmits the weight information sensed in real time or at a certain period to the temperature/cooling control device 15.

Then, the temperature/cooling control device 15 detects a weight change using the transmitted weight information, and may detect the weight change by comparing the previously sensed weight with the transmitted weight. When a weight change is detected, the temperature/cool air control device 15 controls the cooler 16 and the cold air supply unit 17 to adjust the intensity and supply amount of cold air in the storage area where the weight change occurs. In the embodiment of the present invention, the search for the storage area where the weight change has occurred is by assigning an identification number to the weight detection sensor 12 and storing a matching table matching the assigned identification number and the storage area. The control device 15 may identify a corresponding storage area using the identification number of the weight sensor 12. In this case, the change in weight may be one of an increase or decrease in weight.

Although not shown, the temperature/cooling control device 15, the cooler 16, and the cold air supply unit 17 are interconnected by electrical installations and wirings installed through a ceiling or a wall.

5 is a flowchart for explaining a method of controlling refrigeration/freezing in the refrigeration/freezing control system according to an embodiment of the present invention.

Referring to FIG. 5, in the refrigeration/freezing control method according to an embodiment of the present invention, first, a storage object is loaded in a storage space, and a temperature and cold air intensity are set according to the type of the storage object loaded in the storage space ( S101). Here, the initial temperature and cold air intensity may be set by a manager directly operating the temperature/cool air control device 15.

For reference, the storage temperature according to the type of storage is +5℃ or higher for high-temperature refrigeration of fruits and vegetables, +5℃ to 5℃ for cold/hot refrigeration of fresh fish and agricultural products, and -3℃ for partial freezing and storage of fresh fish. , Refrigeration of agricultural and aquatic products (fish) is -2℃~-15℃, freezing and refrigeration of aquatic products and livestock products is -15℃ ~ -40℃, and ultra-low temperature refrigeration of tuna for sashimi is -40℃ or less.

Then, the temperature sensing sensor 11 senses the temperature for each divided storage area, and the temperature/cooling control device 15 controls the cooler 16 to supply cold air until the detected temperature reaches a set temperature (S102). ). At this time, the temperature sensor 11 transmits the sensed temperature information to the temperature/cold control device 15 in real time or at a set period, and the temperature/cold control device 15 determines whether the transmitted temperature information has reached the set temperature. do.

Thereafter, at least one of the temperature, weight, and loading amount of the storage for each divided storage area is sensed in real time, and at least one of the temperature, weight, and the loading amount of the storage is changed (S103).

Here, the temperature sensor 11 detects the temperature, the weight sensor 12 detects the weight, and the bar coder reader 13 acquires the loading amount of the storage material through reading of the barcode 14 attached to the storage object. can do. In addition, the temperature/cold air control device 15 detects a change by comparing the transmitted temperature information, weight information, and loading quantity information with previously stored temperature, weight, and loading quantity information.

As a result of the detection, when the occurrence of temperature change is detected (S104, Y), the cooler 16 and the temperature/cooling control device 15 adjust the cold air intensity and supply amount of the storage area until the detected temperature reaches a set temperature. The cold air supply unit 17 is controlled (S105).

Thereafter, when it is determined that the detected temperature has reached the set temperature in the temperature/cold air control device 15 (S106, Y), the process of detecting whether or not the temperature has changed is continued (S103), and the sensed temperature is set. If it is determined that the set time has elapsed in the state that the temperature has not been reached (S106, N) (S107, Y), it is determined that an abnormality has occurred and an abnormality occurrence notification including at least the location information of the storage area where the temperature abnormality has occurred is registered. Control to notify the terminal (S108).

On the other hand, when a weight change is detected as a result of the detection (S109, Y), the temperature/cooling control device 15 adjusts the intensity and supply of cold air in the storage area in proportion to the detected weight change. Controls the supply unit 17 (S110).

On the other hand, as a result of the detection, when a change in the loading amount of the storage is detected (S111, Y), the temperature/cooling control device 15 adjusts the cold air intensity and supply amount of the storage area in proportion to the detected increase or decrease of the loading amount. And controlling the cold air supply unit 17 (S112).

6 is a flowchart illustrating a method of detecting an abnormality in the refrigeration/freezing control method of the refrigeration/freezing control system according to an embodiment of the present invention.

Referring to FIG. 6, a method of detecting an occurrence of an abnormality according to an embodiment of the present invention includes, first, a plurality of temperature sensors 11 sensing the temperature of each storage area, and then the temperature/cooling control device 15 ) To transfer (S201).

Then, the temperature/cold air control device 15 detects whether or not there is a temperature change in each storage area. When a sudden temperature change within a predetermined time is detected in a specific storage area (S202), the amount of cold air supplied to the storage area is adjusted ( S203). Here, the sudden change in temperature may be a temperature increase or a decrease in temperature, and when a rapid temperature increase is detected, the opening and closing area of the damper provided in the cold air supply unit 17 can be controlled to increase the supply amount of cold air in the storage area. When detected, the opening and closing area of the damper provided in the cold air supply unit 17 may be controlled to reduce the amount of cold air supplied to the storage area.

Thereafter, the temperature sensor 11 detects the temperature of the storage area and transmits it to the temperature/cooling control device 15 (S204), and the temperature/cooling control device 15 checks the temperature of the transferred storage area. And, if it is confirmed that the transferred temperature has been restored to the set temperature (S205, Y), the process returns to step S201.

On the other hand, when the temperature/cold air control device 15 does not recover the temperature of the storage area to the set temperature (S205, N), it determines that an abnormality has occurred, and registers an abnormality occurrence notification including the location information of the storage area. It controls to notify to the old terminal (S206).

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10. Storage space 11. Temperature sensor
12. Weight sensor 13. Barcode reader
14. Barcode 15. Temperature/Cold Control Unit
16. Cooler 17. Cold air supply
20. Entrance door 30. Shelf
40. Cold air transport pipe

Claims (3)

A storage space having a wall surface, a floor, and a ceiling, and having a plurality of divided storage areas;
A plurality of temperature sensors distributedly installed on the ceiling of the storage space and measuring temperatures of the divided plurality of storage areas;
A cooler installed on one side of the storage space;
A plurality of cold air supply units installed on the ceilings of the divided plurality of storage areas, each including an outlet for discharging cold air transported from the cold air transport pipe connected to the cooler to each storage area, and having a damper at the discharge port;
A weight sensor installed on the floor of the divided plurality of storage areas;
A barcode attached to the surface of the storage object;
A barcode reader provided near the entrance of the storage space and reading the barcode; And
It is installed outside the storage space, and detects at least one change among temperature change, weight change, and load amount change according to storage item input/exit information, and adjusts the intensity and supply amount of cold air according to the detected degree of change,
The opening and closing area of the damper provided in the cold air supply unit to receive the measured temperature information from the temperature sensor, to check whether the temperature has changed based on the received temperature information, and to control the amount of cold air supplied to the storage area where the confirmed temperature change has occurred. Control, and check whether the temperature of the storage area reaches the set temperature after a certain period of time, and as a result of the check, if the temperature of the storage area does not reach the set temperature, it is determined that an abnormality has occurred and is sent to the registered terminal. A storage area in which an abnormality occurrence notification notification including at least the location information of the storage area is performed, and when a sudden temperature change within a set time is detected based on the received temperature information, it is determined that an abnormality has occurred and a temperature abnormality has occurred to the registered terminal Perform an abnormality occurrence notification notification including at least the location information of,
In the case of the weight change, if the change with the previous weight is determined as an increase in weight based on the weight information received from the weight detection sensor, the opening and closing area of the damper provided in the cold air supply unit is controlled so that cool air is concentrated in the corresponding storage area. And, if it is determined that the weight is reduced, the opening and closing area of the damper is controlled to reduce the amount of cold air supplied,
When a change in loading amount according to the loading/unloading information of the storage is detected, the barcode reader stores the loading/exiting information generated through barcode reading of the storage, and controls the intensity of cold air according to the increase or decrease of the loading amount of the loaded storage. Refrigeration / freezing control system comprising a. delete delete

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