JP2019113193A - Storage internal temperature control device - Google Patents

Abstract

To further reliably acquire quality maintenance effect with heat shock.SOLUTION: A storage internal temperature control device includes: collecting a pre-harvest condition that is a temperature condition before harvesting a crop stored in a storage 2 (S100); identifying a heat shock processing condition to be applied to the crop based on the pre-harvest condition (S105, S107); and controlling a chiller 13 and a heater 15 in accordance with the heat shock processing condition (S106, S108, S110).SELECTED DRAWING: Figure 6

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an in-chamber temperature control apparatus for performing heat shock treatment on crops stored in a storage.

  Conventionally, there is a refrigeration system described in Patent Document 1. The refrigeration apparatus includes a heating heat exchanger for warming the inside of the container, and a cooling heat exchanger for cooling the inside of the container. This refrigeration system controls the heat exchanger to heat the inside of the container for a predetermined period of time before controlling the cooling heat exchanger to cool the inside of the container for storing the fruits and vegetables at a low temperature. Heat shock is given to the fruits and vegetables stored inside. By giving such heat shock to fruits and vegetables, the occurrence of low temperature injury and the like can be suppressed, and the quality can be maintained.

JP, 2016-13295, A

  However, with the control as in the device described in Patent Document 1 described above, depending on the pre-harvest condition of the crop, a sufficient quality maintenance effect by heat shock may not be obtained. For example, although the quality maintenance effect by heat shock can be obtained for the crop harvested in spring, there is a problem that the sufficient quality maintenance effect by heat shock may not be obtained for the crop harvested in summer.

  The present invention has been made in view of the above problems, and an object thereof is to more surely obtain the quality improvement effect by heat shock.

  In order to achieve the above object, the invention according to claim 1 comprises a cooler (13) for cooling the inside of the storage (2), and a heater (15) for heating the inside of the storage, An intra-chamber temperature control device for controlling a cooler and a heater to perform heat shock treatment on a crop stored in a storage, which is a preharvest pre-harvest temperature condition of a crop stored in the storage. Conditions are collected, heat shock treatment conditions to be applied to the crop are specified based on the pre-harvest conditions, and the cooler and heater are controlled according to the heat shock treatment conditions.

  According to such a configuration, the heat shock treatment conditions to be performed on the crop are specified based on the preharvest condition which is the temperature condition before harvest of the crop stored in the storage, and the cooling is performed according to the heat shock treatment condition. Since the heater and the heater are controlled, it is possible to more reliably obtain the quality improvement effect by the heat shock.

  In addition, the code | symbol in the parenthesis of each means described by this column and the claim shows correspondence with the specific means as described in embodiment mentioned later.

It is a figure showing the appearance of the storage with which the temperature control apparatus in a storage was installed. It is a block diagram of a storage temperature control system. It is an outline view of a house where an information processor was installed. It is an external view of the transport box. It is a figure showing the preharvest conditions registered into the storage part of a storage temperature control device. It is a flowchart of the control part of a storage internal temperature control apparatus. It is a comparative example of the low temperature disorder | damage | failure index when the case where heat shock process including a high temperature process is performed to tomato, and low temperature storage without performing a high temperature process to tomato is carried out. It is a figure showing the effect at the time of carrying out high temperature processing to the strawberry of a different kind.

  The configuration of the in-compartment temperature control device according to an embodiment of the present invention will be described using FIGS. 1 to 2. The storage temperature control device 1 includes an evaporator 13 as a cooler for cooling the inside of the storage 2, and an electric heater 15 as a heater for heating the inside of the storage 2, and Control the temperature inside storage 2 that stores

  The internal temperature control device 1 includes a compressor 10, a radiator 11, an expansion valve 12, an evaporator 13, a heater contactor 103, an electric heater 15, a temperature sensor 16, a control unit 100, a storage unit 101, a receiver 102 and a barcode. A leader 104 is provided. The compressor 10, the radiator 11, the expansion valve 12 and the evaporator 13 constitute the above-described compression type refrigeration cycle, and are connected via a refrigerant pipe 14.

  The compressor 10 compresses and discharges the refrigerant. The compressor 10 is configured by an electric compressor that rotationally drives a fixed displacement type compression mechanism whose discharge displacement is fixed by an electric motor. The rotation speed of the electric motor of the compressor 10 is controlled in accordance with a control signal output from the control unit 100.

  The refrigerant inlet side of the radiator 11 is connected to the refrigerant discharge side of the compressor 10. The radiator 11 is a heat exchanger that performs heat exchange between the outside air blown from the first fan 111 and the refrigerant discharged from the compressor 10 to dissipate the refrigerant.

  The refrigerant inlet side of the expansion valve 12 is connected to the refrigerant outlet side of the radiator 11. The expansion valve 12 is a decompression device that decompresses and expands the refrigerant flowing out of the radiator 11. The expansion valve 12 is an electric expansion valve including a valve body configured to be capable of changing the throttle opening degree, and an electric actuator that changes the throttle opening degree of the valve body. The expansion valve 12 has its throttle opening controlled in accordance with a control signal output from the controller 100.

  The refrigerant inlet side of the evaporator 13 is connected to the refrigerant outlet side of the expansion valve 12. The evaporator 13 is a heat exchanger that causes the refrigerant to exchange heat between the air and the refrigerant circulated and blown through the internal space of the storage 2 by the second blower 131 to evaporate the refrigerant. The air blown from the second blower 131 to the evaporator 13 is cooled by an endothermic effect of the latent heat of evaporation of the refrigerant in the evaporator 13. The evaporator 13 corresponds to a cooler that cools the inside of the storage 2.

  The electric heater 15 is a device for heating the inside of the storage 2. The electric heater 15 according to the present embodiment heats the inside of the storage 2 by heat generated by applying a current to the resistor. The electric heater 15 corresponds to a heater that heats the inside of the storage 2.

  The heater contactor 103 is configured of an electromagnetic contactor that opens and closes an electric path that supplies an electric current to the electric heater 15. The heater contactor 103 is controlled to open and close the electric path according to the control signal output from the control unit 100.

  The temperature sensor 16 is installed inside the storage 2. The temperature sensor 16 detects the internal temperature of the storage 2 and outputs a signal indicating the detected temperature to the control unit 100.

  The control unit 100 is configured as a microcomputer including a CPU that performs control processing and arithmetic processing, a ROM that stores programs and data, and a storage unit such as a RAM. The control unit 100 performs various processes in accordance with the program stored in the storage unit.

  A storage unit 101, a receiver 102 and a barcode reader 104 are connected to the control unit 100.

  The storage unit 101 is an external storage device that stores various data. The storage unit 101 is configured of a hard disk drive. Various data are written to the storage unit 101 in accordance with the write instruction from the control unit 100.

  The receiver 102 is a device that receives an external signal and outputs received data to the control unit 100. The receiver 102 of this embodiment can receive a signal transmitted from the information processing device 3 described later.

  The barcode reader 104 is a device that reads a barcode and outputs the read data. In the present embodiment, a barcode reader 104 is used to read a barcode attached to a shipping box 4 such as cardboard or placon for storing a crop.

  Next, the information processing apparatus 3 will be described with reference to FIG. The information processing device 3 integrally manages the environment such as the temperature in the house where the crop is grown, the occurrence of pests and the like, and is installed in the house. The information processing apparatus 3 is configured by a computer including an operation unit, a display unit, and a control unit (all not shown). A plurality of temperature sensors 30 are connected to the information processing device 3. The temperature sensor 30 detects a temperature, and outputs a signal indicating the detected temperature to the information processing device 3.

  The control unit of the information processing device 3 is configured as a computer including a CPU, a memory, an I / O, and the like, and the CPU performs various processes in accordance with a program stored in the memory.

  The processing of the control unit of the information processing device 3 periodically collects the temperatures detected by the plurality of temperature sensors 30 and stores the temperatures in the memory as temperature data, and creates a barcode representing the preharvest condition of the crop There is, for example, a process of printing the barcode on the sticker with a printer (not shown).

  The harvested crop is transported to the storage 2 by placing it in a transport box 4 on which a barcode sticker on which a barcode representing the preharvest condition of the crop is printed is attached.

  The preharvest conditions of the crop include information such as the crop item (for example, tomato), the variety (for example, ○ tomato), the maturity (for example, mature green), and the maximum temperature for 30 days immediately before the harvest. Be

  FIG. 4 is an external view of the transport box 4. A bar code sticker 40 created by the information processing device 3 is attached to the transport box 4. The crops harvested in the house are transported to the storage 2 using the transport box 4.

  By the way, when low temperature storage of summer vegetables such as tomato is carried out in a low temperature storage, there is a problem that low temperature failure is likely to occur. Specific examples of the low-temperature injury include softening that causes the cells to break and become soft, for example, poor ripening in which the tomato does not turn red, pitting in which spots and darkening occur on the epidermis, and the like.

  In order to suppress such low temperature damage, the in-chamber temperature control device 1 according to the present embodiment heats the inside of the storage before or during the low temperature storage of the crop, and the crop is stored in the storage Perform a heat shock treatment that gives a heat shock to the

  Thus, it is possible to heat the inside of the storage to stress the tomato before or during storage of the crop at low temperature, and then to store the low temperature, thereby suppressing the occurrence of low temperature damage, thereby achieving high quality. It becomes possible to maintain.

  According to the study of the present inventors, it has been found that the optimum temperature condition at the time of giving a heat shock differs depending on the preharvest condition which is the temperature condition under which the crop is placed before harvest. For example, the tomato harvested in May and the tomato harvested in November have different pre-harvest conditions such as the maximum temperature for a predetermined period immediately before harvesting, and the accumulated temperature until the crop is harvested. It was found that such preharvest conditions differ in the optimum temperature conditions to be given to the crop.

  In the storage unit 101 of the in-chamber temperature control device 1 of the present embodiment, heat shock treatment is performed on the crop so that the occurrence of low temperature damage of the crop is suppressed when the preharvest condition of the crop satisfies the predetermined condition. Conditions are stored.

  FIG. 5 is an example of registration data of heat shock processing conditions. The input information includes the item (tomato), the cultivar (○ 例 え ば tomato), the ripeness (for example, mature green), and the maximum temperature (25 ° C.) for 30 days immediately before the harvest, and the output information is the high temperature processing temperature ( 38 ° C), high temperature treatment time (72 hours) is included.

  The control unit 100 of the in-chamber temperature control device 1 collects pre-harvest conditions, which are temperature conditions before harvesting of the crops stored in the storage 2, and the crops stored in the storage 2 based on the pre-harvest conditions Identify the heat shock treatment conditions to be performed for the heat shock treatment conditions, and perform the process of controlling the cooler and the heater according to the heat shock treatment conditions.

  In addition, although the registration data of the heat shock processing conditions about ○ tomato are shown in FIG. 5, the registration data of the heat shock processing conditions about crops, such as a banana, an eggplant, and a mango, are actually in-chamber temperature It is registered in the storage unit 101 of the control device 1.

  Next, the process of the control unit 100 of the in-compartment temperature control device 1 will be described with reference to FIG. In addition, the crop stored in the transport box 4 is assumed to be carried into the storage 2. Control unit 100 starts the process shown in FIG. 6 according to the operation of the worker.

  First, at S100, the control unit 100 collects the preharvest conditions of the crops in the storage 2. Specifically, by causing the barcode reader 104 to read the barcode of the barcode seal 40 attached to the transport box 4 as shown in FIG. 4, the crop preharvest conditions are collected. The preharvest conditions include a crop item (for example, tomato), a crop variety (for example, ○ tomato), and a maximum temperature (for example, 25 ° C.) in a predetermined period immediately before the crop is harvested.

  Next, in S102, the control unit 100 determines whether the crop in the storage 2 is a variety having a heat shock effect. For example, tomato, banana, eggplant, mango and the like are determined to be items (variety) having a heat shock effect, and apples and the like are determined to be items (variety) having no heat shock effect.

  Here, when the crop in the storage 2 is ト マ ト tomato, the control unit 100 determines in S104 that the preharvest condition of the crop in the storage 2 is the predetermined condition based on the preharvest condition collected in S100. It is determined whether or not Specifically, when the maximum temperature within a predetermined period immediately before the harvest of the crop included in the preharvest condition is equal to or lower than the predetermined temperature, it is assumed that the preharvest condition of the crop collected by the information collection unit satisfies the predetermined condition. judge.

  More specifically, when the maximum temperature of 30 days immediately before the harvest of the crop in the storage 2 is 26.4 ° C. or lower, the preharvest condition of the crop collected by the information collection unit is the predetermined condition. It is determined that the conditions are satisfied.

  In addition, when the maximum temperature on the 30th immediately before the harvest of the crop in the storage 2 is higher than 26.4 ° C., it is determined that the preharvest condition of the crop collected by the information collection unit does not satisfy the predetermined condition Do.

  Here, when the maximum temperature of 30 days immediately before the harvest of the crop in the storage 2 is 26.4 ° C. or lower based on the preharvest condition collected in S100, the control unit 100 performs the process in S106. The heat shock treatment conditions to be applied to the crop are read from the storage unit 101 and specified.

  For example, as shown in FIG. 5, the crops in the storage 2 are the item (tomato), the variety (○ tomato), the maximum temperature (25 ° C.) for 30 days before harvest, and the high temperature treatment temperature is If 38 ° C. and the high temperature processing time are registered in the storage unit 101 as 72 hours, the high temperature processing temperature is specified as 38 ° C. and the high temperature processing time is 72 hours.

  Next, in S106, the control unit 100 performs the heat shock process at the first temperature for the first period. Here, the heat shock treatment is performed by setting the first temperature to 38 ° C., which is a high temperature treatment temperature, and setting the first period to 72 hours, which is a high temperature treatment time. The controller 100 controls the heater contactor 103 and the electric heater 15 so that the temperature detected by the temperature sensor 16 approaches 38 ° C. for 72 hours.

  Next, when the first period has elapsed, the control unit 100 performs low-temperature storage processing in S110. Here, the low temperature storage process is performed so that the temperature in the storage 2 becomes the low temperature processing temperature (for example, 3 ° C.) for two weeks (336 hours) which is a low temperature processing period. Specifically, the number of rotations of the electric motor of the compressor 10, the first blower 111, the second blower 131 and the like are controlled so that the temperature detected by the temperature sensor 16 approaches the low temperature processing temperature for 336 hours. Then, when the second period has elapsed, the control unit 100 ends the present process.

  When the maximum temperature on the 30th immediately before the harvest of the crop in the storage 2 is higher than 26.4 ° C. or less at S104, the control unit 100 compares the crop with the crop at S107. Identify the heat shock treatment conditions to be implemented. Here, the high temperature processing temperature is specified as 41 ° C., and the high temperature processing period is specified as 72 hours.

  Next, at S106, the control unit 100 performs the heat shock process at the second temperature for a second period. Here, the heat shock treatment is performed by setting the second temperature to 41 ° C., which is a high temperature treatment temperature, and setting the second period to 72 hours, which is a high temperature treatment time. The controller 100 controls the heater contactor 103 and the electric heater 15 so that the temperature detected by the temperature sensor 16 approaches 41 ° C. for 72 hours.

  Next, when the second period has elapsed, the control unit 100 performs low-temperature storage processing in S110. Then, when the second period has elapsed, the control unit 100 ends the present process.

  When the crop in the storage 2 is an item (variety) having no heat shock effect, such as an apple, the determination in S102 is NO, and the control unit 100 performs the heat shock processing S106 and S108 without performing S110. Proceed to low temperature storage treatment.

  Next, a low temperature failure index in the case where heat shock treatment including high temperature treatment is performed on tomato and low temperature storage in the case of low temperature storage without performing high temperature treatment will be described with reference to FIG.

  Fig. 7 shows the cases where heat shock treatment including high temperature treatment was performed on tomatoes harvested in May, June, and November (high temperature treatment) and when low temperature storage was performed on the tomatoes without high temperature treatment (no treatment) Comparative example of the low temperature failure index of) is shown.

  The low temperature injury index is an index that comprehensively evaluates softening that causes cell breakage and becomes soft, such as poor ripening that a tomato does not turn red and pitting and darkening that occur on the epidermis. The higher the low temperature failure index, the worse the quality means.

  The maximum temperature of tomatoes harvested in May 30 days before harvest is 26.4 ° C, and the maximum temperature of tomatoes harvested in June 30 days before harvest is 29.9 ° C, harvest of tomatoes harvested in November The maximum temperature for the previous 30 days is 28.6 ° C.

  The high-temperature treatment on the right side of FIG. 7 represents a low-temperature failure index when performing high-temperature treatment at 38 ° C. for 3 days and then storing at low temperature for 2 weeks at 3 ° C. and then performing shelf test at 20 ° C. There is. In addition, no treatment on the left side of FIG. 7 represents a low temperature failure index when stored at low temperature for 2 weeks at 3 ° C. without performing high temperature treatment and then subjected to a shelf test at 20 ° C.

  When heat shock treatment including high temperature treatment is performed to tomatoes harvested in May and June, the low temperature damage index is smaller than that when the tomato is stored at low temperature without high temperature treatment. ing. That is, the heat shock treatment including the high temperature treatment suppresses the occurrence of the low temperature failure.

  However, when heat-shock treatment including high-temperature treatment is performed on tomato harvested in November, the low-temperature failure index becomes larger than when low-temperature storage is performed on the tomato without high-temperature treatment. There is. That is, the heat shock treatment including the high temperature treatment does not suppress the occurrence of the low temperature failure.

  In particular, the maximum temperature 30 days before harvest of tomatoes harvested in May is 26.4 ° C, and the maximum temperature 30 days before harvest of tomatoes is 3 days at 38 ° C when the maximum temperature is below 26.4 ° C. After the high temperature treatment, when stored at low temperature for 2 weeks at 3 ° C., it has been confirmed that the low temperature failure index is largely suppressed.

  FIG. 8 shows the effect of high temperature treatment at 42 ° C. for 4 hours with respect to strawberry varieties (○○ strawberry, ΔΔ strawberry, ×× strawberry). Specifically, mold inhibition, rot inhibition, ose inhibition, wrinkle control, taste retention are shown. In addition, ose means that it collapses under its own weight.

  ○ × Strawberry × × strawberry was confirmed to have mold inhibitory effect, △ い ち strawberry could not confirm mold inhibitory effect. Moreover, ○ strawberry was able to maintain taste, but Δ △ strawberry × × strawberry was not able to maintain taste.

  As described above, it can be seen that when the heat shock treatment is performed under the same conditions, the effect of the heat shock treatment differs depending on the type. That is, it is preferable to change the heat shock treatment conditions for each type.

  As described above, the in-compartment temperature control device of the present embodiment includes the evaporator 13 for cooling the inside of the storage 2 and the electric heater 15 for heating the inside of the storage 2. Then, the evaporator 13 and the electric heater 15 are controlled to carry out a heat shock process on the crop stored in the storage 2. In addition, the temperature control device in the store collects pre-harvest conditions, which are temperature conditions before harvest of the crops stored in the storage 2, and heat-shock treatment conditions to be performed on the crops based on the pre-harvest conditions. Identify. And a cooler and a heater are controlled according to this heat shock processing conditions.

  According to such a configuration, the heat shock treatment conditions to be performed on the crop are specified based on the preharvest condition which is the temperature condition before harvest of the crop stored in the storage, and evaporation according to the heat shock treatment condition is performed. Since the heater 13 and the electric heater 15 are controlled, it is possible to more reliably obtain the quality maintenance effect by the heat shock.

  In addition, as described above, the temperature control device in the storage stores the heat shock treatment conditions to be applied to the crop so that the occurrence of the low temperature injury of the crop is suppressed when the preharvest condition of the crop satisfies the predetermined condition. A storage unit 101 is provided. Then, it is determined whether the preharvest condition of the crop collected by the information collection unit satisfies the predetermined condition, and when it is determined that the preharvest condition of the crop satisfies the predetermined condition, the operation is performed on the crop The heat shock processing conditions to be performed are read from the storage unit and specified.

  As described above, when it is determined that the preharvest condition of the crop satisfies the predetermined condition, the heat shock treatment condition to be applied to the crop can be read out and specified from the storage unit.

  In addition, as described above, the information collection unit collects crop information including preharvest conditions and crop varieties of crops stored in the storage, and the processing condition identification unit is a crop collected by the information collection unit. Identify the heat shock treatment conditions to be applied to the crop based on the crop preharvest conditions and crop variety included in the information.

  Thus, since the heat shock treatment conditions to be applied to the crop are specified based on the preharvest conditions of the crop and the crop variety, coolers and heaters under different heat shock treatment conditions for different varieties of crop are used. Can be controlled.

  Also, as described above, the preharvest conditions include the maximum temperature within a predetermined period immediately before the harvest of the crop. Further, the storage unit stores heat shock treatment conditions to be applied to the crop when the maximum temperature in the predetermined period immediately before the harvest of the crop included in the preharvest condition is equal to or lower than the predetermined temperature.

  Further, when the maximum temperature in the predetermined period immediately before the harvest of the crop included in the preharvest condition is equal to or lower than the predetermined temperature, the in-chamber temperature control device determines that the preharvest condition of the crop collected by the information collection unit is the predetermined condition. It is determined that the conditions are satisfied.

  Thus, when the maximum temperature in the predetermined period immediately before the harvest of the crop included in the preharvest condition is lower than the predetermined temperature, the maximum temperature in the predetermined period immediately before the harvest of the crop included in the preharvest condition is lower than the predetermined temperature The heat shock treatment conditions to be applied to the crop in the above case can be read out from the storage and specified.

  Further, the in-compartment temperature control device is provided with a barcode reader 104 for reading a barcode indicating pre-harvest conditions. Then, the pre-harvest condition of the crop is collected by the barcode read by the barcode reader 104.

  As described above, by collecting the preharvest condition of the crop by the barcode read by the barcode reader 104, it is possible to accurately collect the preharvest condition.

(Other embodiments)
(1) In the above embodiment, when the preharvest condition of the crop in the storage 2 is collected in S100, the barcode reader of the barcode reader 104 is used to read the barcode of the barcode seal 40 to obtain the crop pre-harvest. It was made to collect harvest conditions.

  On the other hand, the pre-harvest condition of the crop may be collected by receiving a signal indicating the pre-harvest condition of the crop in the storage 2 from the information processing device 3 through the receiver 102.

  As described above, by receiving the signal indicating the preharvest condition of the crop in the storage 2 from the information processing device 3 through the receiver 102, the preharvest condition of the crop is collected, so that the preharvest condition is accurate. And can be collected promptly.

  (2) In the above embodiment, the bar code reader 104 for reading the bar code is provided. However, for example, instead of the bar code reader 104, a QR code reader for reading the QR code may be provided (QR The code is a registered trademark).

  (3) In the above embodiment, the preharvest condition of the crop in the storage 2 is collected in S100. On the other hand, it is possible to collect the amount of ethylene in the pre-harvest cultivated land together with the preharvest conditions.

  (4) In the said embodiment, although the electric heater 15 was used as a heater which heats the inside of a storage, it is not limited to the electric heater 15, For example, a gas heater etc. can also be used.

  (5) Although the example which grows a crop in a house was shown in the said embodiment, it can also be applied to the case where a crop is alley grown.

  (6) Preharvest conditions include crop item, crop type, fertilization history, cumulative temperature until crop is harvested, cumulative humidity until crop is harvested, maximum temperature until crop is harvested, It is possible to include at least one of the minimum temperature until the crop is harvested, the cumulative time when the crop is exposed to a predetermined temperature or higher, and the pest occurrence situation.

  In addition, this invention is not limited to above-described embodiment, In the range described in the claim, it can change suitably. Moreover, said each embodiment is not mutually irrelevant and can be combined suitably, unless the combination is clearly impossible. Further, in each of the above-described embodiments, it is needless to say that the elements constituting the embodiment are not necessarily essential except when clearly indicated as being essential and when it is considered to be obviously essential in principle. Yes. Further, in the above embodiments, when numerical values such as the number, numerical value, amount, range, etc. of constituent elements of the embodiment are mentioned, it is clearly indicated that they are particularly essential and clearly limited to a specific number in principle. It is not limited to the specific number except when it is done. Further, in the above embodiments, when referring to materials, shapes, positional relationships, etc. of constituent elements etc., unless specifically stated otherwise or in principle when limited to a specific material, shape, positional relationship, etc., etc. It is not limited to the material, the shape, the positional relationship, etc.

(Summary)
According to the first aspect of the present invention described in part or all of the above embodiments, the in-compartment temperature control device includes a cooler for cooling the inside of the storage, and a heater for heating the inside of the storage. Is equipped. Then, the cooler and the heater are controlled to carry out a heat shock treatment on the crop stored in the storage.

  In addition, the in-chamber temperature control device includes an information collection unit that collects preharvest conditions that are temperature conditions before harvesting of the crops stored in the storage. Moreover, the processing condition identification part which specifies the heat shock processing conditions implemented with respect to a crop based on the preharvest condition collected by the information collection part is provided. Furthermore, a temperature control unit that controls the cooler and the heater according to the heat shock processing conditions specified by the processing condition specifying unit is provided.

  Further, according to the second aspect, the temperature control device in the storage case performs a heat shock treatment on the crop so that the occurrence of the low temperature damage of the crop is suppressed when the preharvest condition of the crop satisfies the predetermined condition. A storage unit for storing conditions is provided.

  In addition, it is determined whether or not the preharvest condition of the collected crop satisfies the predetermined condition, and if it is determined that the preharvest condition satisfies the predetermined condition, the heat shock treatment condition to be performed on the crop is , Read from the storage unit and specified.

  As described above, when it is determined that the preharvest condition of the crop satisfies the predetermined condition, the heat shock treatment condition to be applied to the crop can be read out and specified from the storage unit.

  In addition, according to the third aspect, the information collection unit collects crop information including preharvest conditions of the crop stored in the storage and the variety of the crop. Further, the processing condition identification unit identifies the heat shock processing condition to be performed on the crop based on the crop preharvest condition and the crop variety included in the crop information collected by the information collection unit.

  Thus, since the heat shock treatment conditions to be applied to the crop are specified based on the preharvest conditions of the crop and the crop variety, coolers and heaters under different heat shock treatment conditions for different varieties of crop are used. Can be controlled.

  Further, according to the fourth aspect, the preharvest conditions include the maximum temperature within a predetermined period immediately before the harvest of the crop. Further, the storage unit stores heat shock treatment conditions to be applied to the crop when the maximum temperature in the predetermined period immediately before the harvest of the crop included in the preharvest condition is equal to or lower than the predetermined temperature.

  In addition, the pre-harvest condition of the crop collected by the information collection unit satisfies the predetermined condition when the maximum temperature within the predetermined period immediately before the harvest of the crop included in the preharvest condition is equal to or lower than the predetermined temperature. It is determined that there is.

  Then, when the processing condition identification unit determines that the preharvest condition of the crop satisfies the predetermined condition by the condition determination unit, the maximum temperature in the predetermined period immediately before the harvest of the crop included in the preharvest condition is a predetermined temperature The heat shock treatment conditions to be applied to the crop in the following cases are read from the storage unit and specified.

  Thus, when the maximum temperature in the predetermined period immediately before the harvest of the crop included in the preharvest condition is lower than the predetermined temperature, the maximum temperature in the predetermined period immediately before the harvest of the crop included in the preharvest condition is lower than the predetermined temperature The heat shock treatment conditions to be applied to the crop in the above case can be read out from the storage and specified.

  Further, according to the fifth aspect, the preharvest condition includes the item of the crop, the variety of the crop, the fertilization history, the cumulative temperature until the crop is harvested, the cumulative humidity until the crop is harvested, and the crop is harvested At least one of a maximum temperature until being harvested, a minimum temperature until the crop is harvested, an integrated time when the crop is exposed to a predetermined temperature or more, and a pest occurrence situation.

  Thus, the preharvest conditions include the crop item, crop type, fertilization history, cumulative temperature until crop is harvested, cumulative humidity until crop is harvested, maximum temperature before crop is harvested The method may include at least one of a minimum temperature until the crop is harvested, an integration time when the crop is exposed to a predetermined temperature or more, and a pest occurrence situation.

  Further, according to the sixth aspect, the in-compartment temperature control device includes an identification information reader for reading an identification code indicating a preharvest condition, and the information collecting unit is a crop according to the identification code read by the identification information reader. To collect pre-harvest conditions.

  Thus, by collecting the preharvest condition of the crop by the identification code read by the identification information reader, the preharvest condition can be correctly collected.

  Further, according to the seventh aspect, a receiver for receiving information for specifying a preharvest condition is provided, and the information collecting unit collects the preharvest condition via the receiver.

  Thus, by receiving the signal indicating the preharvest condition via the receiver, the preharvest condition can be collected accurately and promptly by collecting the preharvest condition.

  In addition, to describe the correspondence between the configuration in the above embodiment and the configuration of the claims, the process of S100 corresponds to the information collection unit, the process of S105 and S107 corresponds to the process condition identification unit, and S106 and S108. , S110 correspond to the temperature control unit. Further, S104 corresponds to a condition determination unit, and the barcode reader 104 and the QR code reader (not shown) correspond to an identification information reader.

DESCRIPTION OF SYMBOLS 1 Temperature control apparatus in a storage compartment 10 Compressor 11 Radiator 12 Expansion valve 13 Evaporator 15 Electric heater 16 Temperature sensor 100 Control part 101 Storage part 102 Receiver 103 Heater contactor 104 Bar code reader 3 Information processing device 4 Transport box 30 Temperature Sensor 40 barcode seal

Claims (7)

A cooler (13) for cooling the inside of the storage (2), and a heater (15) for heating the inside of the storage; and controlling the cooler and the heater to store the storage in the storage A temperature control system for carrying out heat shock treatment on stored crops, comprising:
An information collection unit (S100) for collecting preharvest conditions which are temperature conditions before harvest of the crop stored in the storage;
A processing condition specifying unit (S105, S107) for specifying a heat shock processing condition to be performed on the crop based on the preharvest condition collected by the information collection unit;
A temperature control unit (S106, S108, S110) for controlling the cooler and the heater according to the heat shock processing conditions specified by the processing condition specifying unit; A storage unit (101) for storing a heat shock treatment condition to be performed on the crop so that occurrence of low temperature damage of the crop is suppressed when the preharvest condition of the crop satisfies a predetermined condition;
A condition determination unit (S104) that determines whether the preharvest condition of the crop collected by the information collection unit satisfies the predetermined condition;
The processing condition identification unit reads, from the storage unit, a heat shock processing condition to be performed on the crop when the condition determination unit determines that the preharvest condition of the crop satisfies a predetermined condition. The storage temperature control device according to claim 1, wherein the storage temperature control device is specified. The information collecting unit collects crop information including the preharvest condition of the crop stored in the storage and the variety of the crop;
The treatment condition specifying unit specifies a heat shock treatment condition to be performed on the crop based on the preharvest condition of the crop and the variety of the crop included in the crop information collected by the information collection unit. The storage temperature control apparatus according to claim 1. The preharvest conditions include the maximum temperature within a predetermined period immediately before the harvest of the crop,
The storage unit stores a heat shock treatment condition to be performed on the crop when the maximum temperature within a predetermined period immediately before the harvest, which is included in the preharvest condition, is equal to or lower than the predetermined temperature,
The condition determination unit determines that the preharvest condition of the crop collected by the information collection unit is the maximum temperature within a predetermined period immediately before the harvest of the crop included in the preharvest condition is equal to or lower than a predetermined temperature. It is determined that the predetermined condition is satisfied,
The processing condition identification unit determines that the pre-harvest condition of the crop is determined to satisfy the predetermined condition by the condition determination unit, then, the maximum within the predetermined period immediately before the harvest of the crop included in the pre-harvest condition is determined. The temperature control system according to claim 2 or 3, wherein the heat shock treatment conditions to be applied to the crop when the temperature is lower than or equal to a predetermined temperature are read out from the storage unit and specified.   The preharvest condition includes the item of the crop, the variety of the crop, the fertilization history, the integrated temperature until the crop is harvested, the cumulative humidity until the crop is harvested, the harvest until the crop is harvested The storage according to any one of claims 1 to 3, comprising at least one of a maximum temperature, a minimum temperature until the crop is harvested, an integrated time when the crop is exposed to a predetermined temperature or more, and a pest occurrence situation. Internal temperature control device. An identification information reader (104) for reading an identification code indicating the preharvest condition;
The in-house temperature control device according to any one of claims 1 to 5, wherein the information collecting unit collects the preharvest condition of the crop according to the identification code read by the identification information reader. A receiver (102) for receiving information for identifying the preharvest condition;
The in-house temperature control device according to any one of claims 1 to 5, wherein the information collection unit collects the preharvest condition via the receiver.

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