JP2023022788A - Cold chain system, and cooling-box cold air environment state reporting method of cold chain system - Google Patents

Abstract

To provide a cold chain system and a cooling-box cold air environment state reporting method for providing a cold air environment suitable for an object to be stored in cold by monitoring a cold air environment state in which a property of a refrigerant is considered, and realizing optimal delivery.SOLUTION: A cold chain system includes: a cold state detecting mechanism terminal 500 that detects a cold air environment state provided by a cold insulator 10 of a cold storage vehicle 400, and transmits the cold air environment state over a network 100; a cold management server 200 that derives cold-air remaining time information about an object 30 to be stored in cold which is a cold storage target by the cold insulator, on the basis of recognition information obtained by a cold insulator information recognition unit internally provided, detection information, and property information on the object to be stored in cold, and transmits the cold-air remaining time information over the network 100; a database unit 300 that is referred when the cold management server derives the cold-air remaining time information, and stores state transition information about the object to be stored in cold by cold insulator type; and a driver terminal 600 that receives the transmitted cold-air remaining time information, and is internally provided with an internal reporting unit for reporting the time information.SELECTED DRAWING: Figure 1

Description

The present invention provides a cold chain system and a cold chain system that enable transportation of perishable foods, frozen foods, pharmaceuticals, etc. that require low-temperature control while maintaining a predetermined low temperature without interruption during the processes of production, manufacturing, transportation, consumption, and use. A method of notifying the cold air environment state of a cold storage in a chain system, especially a cold chain system that is mounted on a cold storage vehicle and can be transported while maintaining the inside of the cold storage at a low temperature only with a cold insulation agent, and a cold storage in the cold chain system , and relates to a cold air environment state reporting method.

Conventionally, fresh food, frozen food, pharmaceuticals, electronic parts, etc. are managed at a constant temperature from the place of production/manufacturing to the place of consumption/usage, in other words, they consistently maintain a low temperature, refrigerated or frozen state. Various transport techniques have been proposed for all cold chain systems. In a distribution system called a so-called cold chain, in particular, in order to maintain a constant temperature without interrupting each stage of distribution, temperature control in production, manufacturing, processing facilities, retail stores, etc. is essential. It is extremely important to keep storage warehouses, transportation trucks, containers, etc. at a constant temperature.

In Patent Document 1 below, instead of transmitting the data of the temperature and humidity measurement record of the vehicle to a personal computer later, the temperature and humidity measurement recorder and the in-vehicle terminal are connected, A temperature and humidity remote monitoring and management method is disclosed for grasping the temperature state of a vehicle in real time using a directional communication method and detecting temperature and humidity abnormalities. With conventional temperature and humidity measurement recorders, for example, in transportation and delivery work, after all work is completed and the vehicle returns to the center, data is sent to the management computer via a dedicated transmission device, so abnormal temperature There is a risk that all of them, including the above, will be recognized afterward. However, in this patent document 1, since two-way real-time management is performed using a packet network or a communication satellite, some measures can be taken immediately in the event of an abnormality.

Patent Literature 2 below discloses a cold storage material amount management method for judging and notifying the replenishment timing of the cold storage material based on the consumption of cool air from the cold storage material due to the release of cool air due to the amount of cargo and the opening and closing of the door. In this case, a computer monitors the temperature inside the in-vehicle cool storage, which is insulated by the cold storage material, and determines whether or not the temperature inside the in-vehicle cool storage can maintain the required transportation temperature according to the transportation time. If it is determined that the appropriate transportation temperature cannot be maintained, the computer notifies the delivery person to replenish the cold storage material.

Patent Literature 3 listed below discloses a technique for monitoring the internal temperature of a cold insulation container in real time without causing electromagnetic waves to leak from the transportation box. In this case, a temperature monitoring system for cold-storage transportation, in which a cold-storage container and a transportation box surrounding the contents with a metal layer are used, and a plurality of cold-storage containers are housed in the transportation box and transported, the ambient temperature is measured. and a plurality of temperature measuring devices for transmitting measured temperature data signals using electromagnetic waves in the long wave band or very long wave band as a transmission medium, and a temperature monitoring device for receiving the temperature data signals transmitted by these temperature measuring devices. , a temperature measuring device and a plurality of cold-insulated containers containing cold-insulated items are housed in a transport box, and a temperature monitoring device arranged in the transport box monitors the internal temperature of each cold-insulated container during transportation. It is what I did.

Patent Literature 4 below discloses a temperature detection system that enables reliable monitoring using an existing mobile terminal and accurately assures the quality of products in a cold-storage room or a cold-storage cabinet. In this system, in a temperature detection system comprising a mobile terminal carried by a user and a temperature sensor unit placed in a cold storage compartment of a cold storage vehicle or in a cold storage compartment of a cold storage warehouse, the temperature sensor unit side When the wireless communication unit of (1) does not receive a request signal from the portable terminal for a predetermined time or longer, the storage mode is changed to perform control so that only temperature data is measured and recorded.

Patent Document 5 below describes a technique for managing the internal temperature of a heat-retaining and cooling container to be delivered, and temperature adjustment for each when transporting a plurality of heat-retaining and cold-insulating containers with different temperatures to be managed. Techniques for doing so are disclosed. In this case, the seller acquires information on the type of product to be transported by means of transportation and the allowable temperature at which the product should be stored, and based on the type and allowable temperature, installs the product in a heat-retaining and refrigerating container containing the product. The number of temperature adjusting materials to be used is determined, and form data including information on the determined number of temperature adjusting materials is transmitted to the delivery company or home delivery company, and the delivery company or home delivery company receives and outputs this document data. It is designed to In addition, the number of temperature adjusting materials is determined based on the type and allowable temperature by referring to table information that defines the number of temperature adjusting materials required for each product type and allowable temperature. be.

Patent Literature 6 below discloses a technique related to a control device for a refrigerating vehicle that increases the operating strength of the refrigerator when the door of the refrigerator of the refrigerating vehicle is opened in an inappropriate situation. In this case, even if the door of the cold storage is opened without the driver of the refrigerating vehicle being aware of it, the temperature of the cold storage can be maintained at an appropriate temperature.

Japanese Patent Application Laid-Open No. 2001-235271 JP-A-2002-267315 JP 2006-11585 A Japanese Patent No. 6211663 Republished Patent No. 2018-155408 JP 2021-60144 A

In recent years, there has been a demand for transportation that is strictly controlled at low temperature, such as transportation that retains freshness at the time of landing, and transportation of vaccines that cannot be used if the threshold is exceeded. It is one way.

Under such circumstances, a refrigerated vehicle or a freezer vehicle that can lower the temperature by itself and maintain an arbitrary temperature is suitable. However, it imposes a considerable burden in terms of economy and maintenance. In addition, the increase in size and weight of the vehicle itself is undeniable. Furthermore, there is concern about an increase in carbon dioxide emissions due to the operation of compressors and the like.

On the other hand, refrigerated vehicles, which do not have the function of lowering the temperature by themselves, are less expensive in terms of cost and maintenance, and are superior to refrigerated vehicles and freezer vehicles. However, it has been considered unsuitable for long-distance transportation while maintaining low temperature conditions.

The technique disclosed in Patent Document 1 is two-way real-time management using a packet network or a communication satellite, but it requires a large-scale facility, affects transportation costs, and poses a large physical and economic burden. is forced. Furthermore, the maintenance load is not small.

In the technique disclosed in Patent Document 2, it is determined whether or not the temperature inside the in-vehicle cooler can maintain the required transportation temperature according to the transportation time. Only the cold storage material temperature is detected. Since the temperature outside the cold storage is not taken into account, it is difficult to say that the prediction accuracy of the time that the cold storage material will have is high.

The technique disclosed in Patent Document 3 monitors the temperature inside the cold-insulated container during transportation and the temperature inside the transport box in which the cold-insulated container is stored, but does not consider the ambient temperature outside the cold-insulated container. do not have. For this reason, it is difficult to say that the prediction accuracy of the cold-insulated time is high, and therefore it is difficult to control the temperature of the object to be cold-insulated with high accuracy.

The method disclosed in Patent Document 4 only detects the temperature inside the cold storage compartment of the cold storage vehicle or the cold storage compartment of the cold storage warehouse, and does not consider the ambient temperature outside the cold storage compartment or outside the cold storage compartment at all. For this reason, even if it is possible to predict the cold insulation possible time, it is difficult to say that the accuracy is high.

Since the temperature sensor disclosed in Patent Document 5 is housed in the heat and cold insulation container, it only detects the temperature inside the heat and cold insulation container, and does not consider the ambient temperature outside the heat and cold insulation container at all. For this reason, even if it is possible to predict the cold insulation possible time, it is difficult to say that the accuracy is high.

The method disclosed in Patent Document 6 is not suitable for strict low-temperature controlled transport because temperature control is not based on temperature detection inside the cold storage.

In a sustainable society, a cold chain system using only a cold storage and a cooling agent, which emits less carbon dioxide, is suitable. However, there are difficulties in the limitation of cold storage time and cold storage management, and the actual situation is that no attractive solutions have been proposed in the above-mentioned patent documents and others.

The present invention has been made in consideration of the above circumstances, and solves the above-mentioned difficulties and problems. It is possible to maintain the inside of the cold storage at a low temperature only with a cold insulation agent, and to manage the transportation of cold-storage items without impairing the characteristics. It is an object of the present invention to provide a cold chain system and a method for notifying the cold air environment state of a cold storage in the cold chain system.
In addition, the present invention provides a cold chain system and a method for notifying the cold air environment state of the cold storage in the cold chain system, which enables optimal delivery of cold-storage items in consideration of the low temperature condition in the cold storage. aim.

In order to achieve the above objects, the present invention is characterized by the following configuration.

(1) Detecting the temperature of the cold air environment inside the cold-storage box equipped with a cold-storage agent and mounted on the cold-storage car, and detecting the ambient temperature outside the cold-storage box, and sending these detection results to the outside via the network as detection information. based on the cold storage state detection mechanism terminal sent to the cold storage state detection mechanism terminal, the detection information sent from the cold storage state detection mechanism terminal connected to the network, and the characteristic information of the object to be cold stored in the cold storage chamber a cold storage management server that derives cold air remaining time information and sends it to the outside via the network; and a database unit that stores cold air state transition information, is mounted on the refrigerated vehicle, is connected to the network, receives cold air remaining time information sent from the cold storage management server, and notifies the cold air remaining time information. and a driver terminal in which a notification unit is installed.

(2) In the configuration of (1) above, the cold insulation management server has a cold insulation agent information recognition unit that recognizes the type of the cold insulation agent, and the recognition information by the cold insulation agent information recognition unit, the detection information and It is characterized in that it is functionally configured so as to derive cold air remaining time information regarding the cold storage based on the characteristic information of the object to be kept cold and transmit it via the network.

(3) In the configuration of (1) or (2) above, the cold storage management server is configured to transmit warning information via the network when the derived cool air remaining time information reaches a preset threshold value. It is characterized in that the notification unit is functionally configured to notify the warning information upon receiving the warning information transmitted via the network.

(4) A cold storage management server that connects the database unit that stores information on the transition of the state of the cold air due to the cold insulation agent in the cold storage, and the cold air environment state inside the cold storage due to the cold air from the cold insulation material installed in the cold storage vehicle. A cold storage state detection mechanism terminal that detects temperature and also detects the ambient temperature outside the cold storage and sends these detection results as detection information, and receives information sent from the cold storage management server mounted on the cold storage vehicle. In a cold chain system in which possible driver terminals are connected via a network,
The cold insulation management server recognizes the type of the cold insulation agent, the characteristics of the cold-insulated object to be cooled by the cold insulation agent, and the storable volume of the cold storage, and transmits the recognized information and the network. Based on the incoming detection information, reference is made to the database unit to derive cold air remaining time information in the cold storage box related to the object to be cooled, and the cold insulation management server stores the derived cold air remaining time information in advance. When it is determined that the set threshold has been reached, it is sent over the network as warning information,
The driver terminal is characterized in that when it receives the warning information transmitted over the network, it notifies the warning information.

According to the above configuration, it is possible to maintain and manage the inside of the cold storage at a predetermined low temperature and transport the cold-storage object without impairing its characteristics.

In addition, according to the above configuration, it is possible to appropriately check the low temperature condition in the cold-storage box, so that when transporting cold-storage items with different temperature characteristics, it is possible to realize optimum delivery for each.

Furthermore, according to the above configuration, since an alarm is issued when the threshold value is exceeded, it is possible to easily prevent adverse effects on the object to be insulated.

ADVANTAGE OF THE INVENTION According to this invention, the inside of a cold storage can be maintained at predetermined low temperature only with a cooling agent, and the transportation management of the cold-storage object can be implement|achieved so that the characteristic may not be impaired.
Moreover, according to the present invention, it is possible to optimally manage and respond to the delivery of cold-storage items in consideration of the low temperature condition in the cold-storage chamber.

1 is a diagram schematically showing the overall configuration of a cold chain system according to one embodiment of the present invention; FIG. It is a figure which concerns on the same embodiment and shows roughly the structure of a cold storage management server. FIG. 4 is a diagram schematically showing the configuration of a cold insulation state detection mechanism terminal according to the same embodiment. FIG. 4 is a diagram schematically showing the configuration of a driver terminal, relating to the same embodiment; FIG. 4 is a diagram schematically showing, in a table format, the ambient temperature of the cold storage compartment, the characteristics of the cooling agent/cooling compartment mounted on the vehicle, and the cool air remaining time (cold storage temperature transition information) based on the threshold, according to the embodiment. FIG. 10 is a diagram showing the overall flow of notification/alarm processing during low-temperature transportation, relating to the same embodiment. FIG. 7 is a diagram showing the flow of temperature detection processing according to the embodiment; It is a figure which concerns on the same embodiment and shows the flow of an analysis process. It is a figure which concerns on the same embodiment and shows the flow of an alerting|reporting process. It is a figure which concerns on the same embodiment and shows the flow of a warning process. FIG. 4 is a diagram schematically showing a screen for setting information such as characteristics of a cold-storage box mounted on a cold-storage vehicle, a cold-storage agent, and an object to be cold-insulated, according to the embodiment. FIG. 10 is a diagram schematically showing a display screen for notifying that the cold air remaining state, etc. of each cold storage box during transportation by a cold storage vehicle is normal, related to the same embodiment, and (a) is a display screen of a driver terminal; FIG. 3B is a diagram showing a display screen of the cold insulation management server. FIG. 10 is a diagram schematically showing a display screen for notifying/warning that the cold air remaining state, etc. of each cold storage during transportation is abnormal, related to the embodiment, and (a) is the display of the driver terminal. It is a figure which shows a screen, (b) is a figure which shows the display screen of a cold insulation management server.

An embodiment of the present invention will be described below with reference to the drawings.

In the cold chain system according to the present embodiment, a cold storage management server 200, a cold storage state detection mechanism terminal 500 mounted on a cold storage vehicle 400, and a driver terminal 600 are organically linked via a network (for example, a public network) 100. In order to maintain and manage the inside of the cold storage 20 at an appropriate low temperature only by the cold storage agent 10 mounted on the cold storage vehicle 400, the object to be cooled is determined in consideration of the internal and external temperatures of the cold storage 20 and the characteristics of the cooling agent 10. Thirty optimal transports are realized.

That is, the temperature of the cold air environment inside the cold storage 20 mounted on the cold storage vehicle 400 in which the cooling agent 10 is installed is detected, and the ambient temperature outside the cold storage 20 is detected, and these detection results are used as detection information. A cold storage state detection mechanism terminal 500 sent to the outside via the network 100, detection information sent from the cold storage state detection mechanism terminal 500 connected to the network 100, and the temperature of the cold insulation object 30 stored in the cold storage 20 A cold storage management server 200 that derives cold air remaining time information about the inside of the cold storage box 20 based on the characteristic information and sends it to the outside via the network 100, and when the cold storage management server 200 derives the cold air remaining time information A database unit (DB) 300 that stores cold air temperature state transition information about the cold-insulated object 30 for each type of cold-insulating agent 10, and a cold-insulation management server 200 mounted on a cold-insulated vehicle 400, connected to the network 100, and sent from the cold-insulation management server 200. It is characterized by comprising a driver terminal 600 having an informing unit 640 for receiving cold air remaining time information and notifying the cold air remaining time information.

In this cold chain system, the cold insulation management server 200 has a cold insulation agent information recognition unit 240 that recognizes the type of the cold insulation agent 30. 500 based on the information detected by 500 and the temperature characteristic information of the object to be insulated, cold air remaining time information related to the cold storage 400 is derived, and is functionally configured to be sent to the driver terminal 400 via the network 100. is.
In this embodiment, a public network is used as the network, but the network is not limited to this, and a private network may be used, which is of course within the scope of the present invention.

Now, the cold storage management server 200 is a server computer as shown in FIG. The input/output unit 220 responsible for the function, the memory 230 capable of reading/writing various information with reference to the central control processing unit 210, and the refrigerant information recognition unit 240 for recognizing the type of the refrigerant 10 mounted on the refrigerant vehicle 400 are signaled. It consists of a hardware configuration connected via line 250 . In the cold insulation management server 200, the central control processing unit 210 refers to the predetermined program information stored in the memory 230, and exchanges various information with the outside through the public network 100 and exchanges various information internally. It is functionally configured so that processing can be read/written to/from the DB 300 via the input/output unit 220 .

Note that the memory 230 includes a work area 230a for performing various works, a program information storage area 230b for storing program information referred to by the central control processing unit 210 for various control processing and management, and the type (mass and weight) of the refrigerant. , volume and freezing point characteristic information), a cold storage information storage area 230d for storing information regarding the type of cold storage (including volume and material information), a cold storage Insulated object information storage area 230e for storing information (including temperature characteristic information) on objects to be insulated stored inside; A cold-storage outside temperature information storage area 230g for storing ambient temperature information outside the cold-storage chamber, an outside air temperature information storage area 230h for storing outside air temperature information to be measured or set, and a predetermined temperature in the cold-storage chamber. A remaining cold air maintainable information storage area 230i for storing information on the time that can be maintained for each agent, a notification information storage area 230j for storing information such as a threshold value for reporting the temperature inside the cold storage, transport route status of the cold storage, etc. and a learning information storage area 230i for storing transition information of the temperature status inside the cold-storage stored in the cold-storage when the object to be cold-stored is actually transported. have.

The cold storage state detection terminal 500 is called a data logger, for example, and as shown in FIG. Main unit 510 comprising unit 520 and detection unit 530 for sending various temperature detection information to measurement information output unit 520, and sensor unit 540 capable of measuring various temperatures are connected via signal line 550. It is configured.

Here, the sensor unit 540 includes a cooling agent sensor 540 a having a function of measuring the temperature of the cooling agent 10 itself, a cooling chamber sensor 540 b having a function of measuring the temperature inside the cooling chamber 20 , and stored in the cooling chamber 20 . A cold-insulated object sensor 540c having a function of measuring the temperature of the cold-insulated object 30 itself, a cool-box ambient temperature sensor 540d having a function of measuring the ambient temperature outside the cool-box 20, It has an outside temperature sensor 540e having a function of measuring outside temperature. In this embodiment, at least the cold storage sensor 540b and the cold storage ambient temperature sensor 540d are used. In addition, the outside air temperature sensor 540e is also utilized as necessary.

As shown in FIG. 4, the driver terminal 400 includes a control processing unit 610 having a function of controlling and processing the entire terminal 400, an input/output unit 620 having an input/output function under the control of the control processing unit 610, a control A hardware configuration in which a memory 630 that can be referred to by the processing unit 610 and can read/write various types of information, and a notification unit 640 that notifies the cold air remaining time information and the like sent out by display and sound are connected via a signal line 650. consists of Driver terminal 400 is, for example, a tablet terminal or a smartphone.

The memory 630 includes a work area 630a for performing various operations, a program information storage area 630b for storing program information referred to by the control processing unit 610 for various control processing and management, and an input/output unit 620. It has storage areas such as a notification information storage area 630c for storing notification information such as cold air remaining time information and a transportation route information storage area 630d for storing information such as the transportation route status of the cold storage 20. The memory 630 also stores an application program dedicated to this cold chain system.

FIG. 5 is an example of a table that the cold insulation management server 200 refers to when deriving cold air remaining time information, and is stored in the DB 300 in a readable/writable manner. This table schematically shows the ambient temperature of the cold storage 20, the characteristics of the cooling agent 10 and the cold storage 20 mounted on the vehicle (the cold storage vehicle 400), and the cool air remaining time (cold storage temperature transition information) inside the cold storage 20 based on the threshold. , and the amount of information stored in the memory 230 (refrigerant type information, refrigerator information, object information to be insulated, temperature information inside the refrigerator, temperature information outside the refrigerator, outside temperature information, residual cool air maintainable information).

Here, the "predicted value" listed in the table means the cool air remaining time for the object 30 to be insulated 5 hours after the ice pack 10 is set in the cold storage 20. FIG. For example, if there are 4 ice packs A in the row marked "3" in the table, it means that the predicted value was derived after 5 hours with -20 ° C or lower remaining for 15.24 hours (H). is.

Note that the table is not limited to this, and other tables that match or correspond to the type and characteristics of the refrigerant or cold storage are also prepared.

Also, the derivation of cold air remaining time information is not limited to this, and cold insulation temperature transition information may be derived based on other characteristics, linear models, or the like. For example, the use of graphs over time based on the actually measured temperatures inside and outside the refrigerator for each type and number of refrigerants is also within the scope of the present invention.

Furthermore, this table does not have to be stored in the DB 300 only, and may of course be stored in the memory 230 of the cold insulation management server 200 or a cloud type memory in a readable/writable manner.

With regard to the above configuration, the overall operation of this cold chain system will be described below.

The cold storage 20 mounted on the cold storage vehicle 400 and containing the object 30 and the cold insulation agent 10 is provided with a cold storage sensor 540b at least inside thereof and a cold storage peripheral temperature sensor 540d outside thereof. After being installed, temperature detection processing is performed by the cold insulation state detection mechanism terminal 500 . The detected temperature information is sent from the cold insulation state detection mechanism terminal 500 to the cold insulation management server 200 via the network 100 periodically or at a preset timing (see step S100 in FIG. 6).

Then, the cold storage management server 200 refers to the table of the DB 300, and considers the characteristics of the cooling agent 10 and the cold storage box 20, the actually measured temperature inside and outside the cold storage box 20 (detected temperature information transmitted), and the threshold value. 20 internal cool air residual time is derived (step S200).

Here, if the measured temperature inside the cold storage 20 is equal to or lower than the preset temperature or the temperature that can maintain the characteristics of the cold-insulated object 30 (Y in step S300), normal information to the effect that the measured temperature and the appropriate temperature are met. is sent from the cold storage management server 200 to the driver terminal 600 . Then, the driver terminal 600, which has received the information, notifies that the measured temperature is the appropriate temperature by the notification unit 620 (step S400).

On the other hand, if the measured temperature inside the cold storage 20 exceeds the preset temperature, the temperature that can maintain the characteristics of the cold-insulated object 30, or the threshold value (N in step S300), the measured temperature and the abnormal state are displayed. Warning information as one of notification information is sent from the cold storage management server 200 to the driver terminal 600 . Upon receiving the warning information, the driver terminal 600 notifies/warns of the actually measured temperature and the fact that there is an abnormality in the notifying section 620 (step S500).

In this embodiment, the cold storage management server 200 determines notification information including warning information, and the driver terminal 400 receives and outputs only the results. However, it goes without saying that the driver terminal 400 may be functionally configured so that the determination (eg, comparison of the alarm threshold value and the remaining cold air maintainable information) can be performed.

Now, the "temperature detection process" of step S100 will be described in detail with reference to FIG.

First, the sensor unit 540 of the cold storage state detection mechanism terminal 500, particularly the cold storage sensor 540c and the cold storage ambient temperature sensor 540d, acquires and accumulates information on the temperature detection inside and outside the cold storage 20 in the detection unit 530. (step S702).

The measurement information output unit 520 outputs the detection information acquired and accumulated in the detection unit 530 to the cold storage management server 200 via the network 100 at predetermined time intervals or at preset timing (Y in step S704). (step S706).

When the cold insulation management server 200 receives the detection information, the process proceeds to "analysis processing" in step S200. This analysis processing will be described in detail with reference to FIG.

The cold insulation management server 200 first identifies and recognizes the type and weight of the cold insulation agent 10 stored in the cold storage 20 (steps S802 and S804). For this identification/recognition, it is assumed that information is input in advance via the input/output unit 220 of the cold storage management server 200 or the input/output unit 620 of the driver terminal 600 when the cold insulator 10 is stored in the cold storage 20, for example.

Next, the cold storage management server 200 recognizes the capacity of the cold storage 20 (step S806). For this recognition, for example, information is input in advance via the input/output unit 220 of the cold storage management server 200 or the input/output unit 620 of the driver terminal 600 when the cold insulator 10 is stored in the cold storage 20 .

Here, the processing of steps S802 to S806 is as follows on the display screen, for example.
On the display screen constituting the input/output unit 620 of the driver terminal 600 or the display screen constituting the input/output unit 220 of the cold storage management server 200, the cold storage 20, the cold insulation agent 10, and the cold-insulated object 30 mounted on the cold storage vehicle 400 are displayed. Information such as the characteristics of is set and input. That is, as shown in FIG. 11, for each cold storage (tab "cool storage 1", tab "cool storage 2", tab "cool storage 3", ..., tab "cool storage n", ...) The capacity and material, the type and number of refrigerants, and the recommended temperature and limit temperature (warning value) of the object to be insulated are selected from pull-down menus or manually entered. Of course, this setting/input is not limited to this, and may be automatic identification by AI (Artificial Intelligence) using a sensor or the like.
Further, by inputting a delivery destination and a transportation route as necessary, the required time and traffic information may be displayed in cooperation with the car navigation system installed in the refrigerator car 400 .

Subsequently, the cold storage management server 200 recognizes the received temperature detection information (step S808).
It should be noted that the order of processing from step S802 to step S808 is not limited to this, and other orders may be used.

The cold insulation management server 200 accesses/refers to the table stored in the DB 300 (step S810), and selects a predicted value that matches or corresponds to the identified/recognized information and detection information (step S812). .

Here, if there is a difference between the predicted value and the measured value, a new predicted value may be derived and appropriately reflected in the table as a learning effect (steps S814 and S816). However, in this embodiment, this is not essential.

Further, it is determined whether the result of the analysis processing, that is, the derived prediction value is equal to or less than the threshold value (step S300).

The "notification process" of step S400 for the derived threshold value or predicted value equal to or lower than the predetermined temperature (Y in step S300) will be described in detail with reference to FIG.

The derived predicted value, that is, remaining cold air storable time information is sent from the cold insulation management server 200 to the driver terminal 400 via the network 100 (step S902). Further, the information is stored in the memory 230 and the DB 300 of the storage management server 200 and displayed on the input/output unit 220 (see FIG. 12(b)).

When the driver terminal 400 receives the information on the remaining cold air storable time, the information is displayed on the notification unit 640 (step S904, see FIG. 12(a)). Here, the remaining amount of cool air is displayed as an indicator together with a text message, so that the driver can easily and reliably visually recognize the remaining amount of cold air.

The "warning process" of step S500 for the derived threshold value or predicted value exceeding the predetermined temperature (N of step S300) will be described in detail with reference to FIG.

The derived predicted value, that is, remaining cold air storable time information is sent from the cold insulation management server 200 to the driver terminal 400 via the public network 100 (step S1002). Further, the information is stored in the memory 230 and the DB 300 of the cold insulation management server 200 and displayed on the input/output unit 220 (see FIG. 13(b)).

When the driver terminal 400 receives the remaining cold air maintenance time information exceeding the threshold value or the predetermined temperature, the notification unit 640 notifies the warning information by, for example, red display and voice output (step S1004, FIG. 13(a). )reference).

Here, when the warning information is notified by the notification unit 640, replacement of the cooling agent 10, a recommended new transport route, or a change in delivery order may be displayed or output by voice.

According to the above-described embodiment, the cold storage management server 200 and the driver terminal 600 can appropriately and accurately grasp the low temperature condition in the cold storage 20, so that the items 30 to be kept cold can be transported appropriately without impairing their properties. It is.

Further, according to the above-described embodiment, when transporting the cold-insulated items 30 having different temperature characteristics, it is possible to carry out cold-insulation management according to each of them, so that optimum delivery can be realized, which is extremely useful in practical use.

Furthermore, according to the above embodiment, when the threshold value or the predetermined temperature is exceeded, an alarm is issued by the notification unit 640, so early countermeasures can be taken to prevent adverse effects on the cold-insulated object 30. FIG.

In addition, when other sensors such as the outside air temperature sensor 540e are used together, more detailed temperature control can be realized.

The present invention is not limited to the above-described embodiments, and various modifications are of course possible without departing from the scope of the invention.

DESCRIPTION OF SYMBOLS 10... Cooling agent 20... Cooling box 30... Object to be cold-insulated 100... Network 200... Cooling management server 300... Database part (DB)
400 ... refrigerated vehicle 500 ... cold insulation state detection mechanism terminal 600 ... driver terminal 640 ... notification unit

Claims (4)

Detects the temperature of the cold air environment inside the cold-storage box equipped with a cold-storage agent and is mounted on a cold-storage car, detects the ambient temperature outside the cold-storage box, and sends these detection results to the outside via the network as detection information. a cold storage state detection mechanism terminal;
Based on the detection information transmitted from the cold storage state detection mechanism terminal connected to the network and the characteristic information of the cold-insulated object stored in the cold storage, cold air remaining time information regarding the inside of the cold storage is derived. a cold storage management server that sends out to the outside via the network;
a database unit that is referred to when the cold insulation management server derives the cold air remaining time information and that stores cold air state transition information regarding an object to be cold-insulated for each type of cold insulation agent;
a driver terminal mounted on the refrigerated vehicle, connected to the network, receiving cold air remaining time information transmitted from the cold storage management server, and including a notification unit for notifying the cold air remaining time information. A cold chain system characterized by: The cold storage management server
Having a refrigerant information recognition unit that recognizes the type of the refrigerant,
Based on the information recognized by the cold insulation agent information recognition unit, the detection information, and the characteristic information of the object to be insulated, cold air remaining time information related to the cold storage is derived and is functionally configured to be transmitted via the network. The cold chain system according to claim 1, characterized in that. The cold storage management server is functionally configured to send out warning information via the network when the derived cool air remaining time information reaches a preset threshold,
3. The cold chain system according to claim 1, wherein the reporting unit is configured to report the warning information upon receiving the warning information transmitted via the network. a cold storage management server connected to a database unit that stores state transition information of cool air by a cold insulator in the cold storage;
A cold storage state detection mechanism that detects the temperature of the cold air environment inside the cold storage due to the cold air of the cold insulation material installed in the cold storage vehicle, detects the ambient temperature outside the cold storage, and sends these detection results as detection information. a terminal;
In a cold chain system in which a driver terminal mounted on the refrigerated vehicle and capable of receiving information sent from the refrigerated management server is connected via a network,
The cold insulation management server recognizes the type of the cold insulation agent, the characteristics of the cold-insulated object to be cooled by the cold insulation agent, and the storable volume of the cold storage, and transmits the recognized information and the network. Based on the detection information received, referring to the database unit and deriving cold air remaining time information inside the cold storage regarding the object to be cold-insulated,
Furthermore, when the cold storage management server determines that the derived cool air remaining time information has reached a preset threshold value, it sends it as warning information to the network,
A cold air environment notification method for a cold storage in a cold chain system, wherein the driver terminal notifies the warning information upon receiving the warning information sent over the network.

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