CN115328235B - Cold chain transportation temperature monitoring method and system - Google Patents
Cold chain transportation temperature monitoring method and system Download PDFInfo
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- CN115328235B CN115328235B CN202211257410.5A CN202211257410A CN115328235B CN 115328235 B CN115328235 B CN 115328235B CN 202211257410 A CN202211257410 A CN 202211257410A CN 115328235 B CN115328235 B CN 115328235B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The embodiment of the application provides a method and a system for monitoring cold chain transportation temperature, wherein the method comprises the following steps: acquiring the temperature of an ice bag, the temperature of a storage box and the ambient temperature of a carriage; obtaining a temperature difference value according to the temperature of the ice bag and the ambient temperature of the carriage; and adjusting the set temperature of the refrigerator according to the temperature difference value and a preset threshold value. This application obtains temperature difference between them through acquireing ice bag temperature and carriage ambient temperature, through controlling this temperature difference at reasonable within range to the maintenance time of the ice bag of effective extension in the refrigerator car, even make the goods of waiting to transport also can preserve in a period in the occasion that does not possess the refrigeration condition suitable temperature, avoid appearing the goods because leave the condition that low temperature environment damaged for a long time.
Description
Technical Field
The application relates to the field of logistics transportation, in particular to a method and a system for monitoring cold chain transportation temperature.
Background
Refrigerated transport is an important component of logistics transport, which ensures that goods requiring refrigeration and freshness preservation do not deteriorate during transport. The refrigerator car is a closed van-type transport vehicle for transporting frozen or fresh-keeping goods, and is a special transport vehicle for refrigeration, which is provided with a refrigerating device of a refrigerating unit and a polyurethane heat insulation compartment. When the goods to be transported are stored in the refrigerator car, ice blocks are not usually placed, so that the goods are required to rapidly enter the refrigerator for storage after leaving the refrigerator car. In the event that the cargo is to be transported or stored directly after leaving the refrigerated vehicle without refrigeration, it may be desirable to re-bin and place ice. If the transit time is long, it may happen that the cargo is damaged by leaving the low temperature environment for a long time. Therefore, during the transportation of part of the goods, ice cubes or ice bags are also put into the refrigerator car, and how to prolong the maintenance time of the ice cubes or ice bags in the refrigerator car becomes a technical problem to be solved at present.
Disclosure of Invention
In view of the above, it is desirable to provide a method and a system for monitoring the temperature of cold chain transportation, which can effectively prolong the time for maintaining the ice bag in the refrigerator car.
A first aspect of the present application provides a method for monitoring a cold chain transportation temperature, the method comprising:
acquiring the temperature of an ice bag, the temperature of a storage box and the ambient temperature of a carriage;
obtaining a temperature difference value according to the temperature of the ice bag and the ambient temperature of the carriage; and
and adjusting the set temperature of the refrigerator according to the temperature difference and a preset threshold value.
With reference to the first aspect of the present application, in a possible implementation manner, the adjusting the set temperature of the refrigerator according to the temperature difference and a preset threshold includes: and judging whether the temperature difference reaches the preset threshold value, and if the temperature difference reaches the preset threshold value, adjusting the set temperature of the cold machine to enable the ambient temperature of the carriage to reach the preset temperature of the ice bag.
With reference to the first aspect of the present application, in a possible implementation manner, the adjusting the set temperature of the refrigerator according to the temperature difference and a preset threshold further includes: and if the temperature difference value does not reach the preset threshold value, adjusting the set temperature of the refrigerator to enable the ambient temperature of the carriage to reach the temperature of the storage box.
With reference to the first aspect of the present application, in one possible implementation manner, the storage box is used for storing articles to be transported, and different articles to be transported can be set to different preset temperatures of the ice bag.
In combination with the first aspect of the present application, in one possible implementation, different sizes of the storage tank may be capable of setting different said preset thresholds.
A second aspect of the present application provides a cold chain transport temperature monitoring system, the system comprising:
a carriage;
a storage box disposed in the compartment; the storage box comprises a first storage area and a second storage area, the first storage area is used for storing articles to be transported, and the second storage area is used for storing ice bags;
the first temperature sensor is arranged in the second storage area and used for measuring the temperature of the ice bag;
the second temperature sensor is arranged in the first storage area and used for measuring the storage temperature of the articles to be transported in the storage box;
a third temperature sensor disposed in the vehicle compartment and located outside the storage tank, the third temperature sensor being configured to measure a temperature in the vehicle compartment;
the refrigerator is used for adjusting the temperature in the carriage by setting different refrigerator setting temperatures;
the processor is used for realizing instructions and is electrically connected with the first temperature sensor, the second temperature sensor, the third temperature sensor and the refrigerator; and
a storage device to store the instructions;
wherein the instructions are to be loaded and executed by the processor to:
acquiring the temperature of the ice bag, the temperature of the storage box and the ambient temperature of the carriage;
obtaining a temperature difference value according to the temperature of the ice bag and the ambient temperature of the carriage; and
and adjusting the set temperature of the refrigerator according to the temperature difference value and a preset threshold value.
In combination with the second aspect of the present application, in one possible implementation, the instructions are configured to be loaded and executed by the processor to: and judging whether the temperature difference reaches the preset threshold value, and if the temperature difference reaches the preset threshold value, adjusting the setting temperature of the refrigerator to enable the compartment environment temperature to reach the preset temperature of the ice bag.
In combination with the second aspect of the present application, in one possible implementation, the instructions are configured to be loaded and executed by the processor to: and if the temperature difference value does not reach the preset threshold value, adjusting the set temperature of the refrigerator to enable the ambient temperature of the carriage to reach the temperature of the storage box.
In combination with the second aspect of the present application, in one possible implementation manner, the storage box is used for storing articles to be transported, and different articles to be transported can be set to different preset temperatures of the ice bag.
In combination with the second aspect of the present application, in one possible implementation, the storage bins of different sizes are capable of setting different said preset thresholds.
Compared with the prior art, the application has at least the following beneficial effects:
the temperature difference between the temperature of the ice bag and the temperature of the compartment environment is obtained by acquiring the temperature of the ice bag and the temperature of the compartment environment, and the temperature difference is controlled within a reasonable range, so that the maintaining time of the ice bag in the refrigerator car is effectively prolonged, the goods to be transported can be stored at a proper temperature within a period of time even in the occasion without refrigeration conditions, and the condition that the goods are damaged due to leaving the low-temperature environment for a long time is avoided.
Drawings
Fig. 1 is a schematic flow chart of a method for monitoring cold chain transportation temperature according to an embodiment of the present disclosure.
Fig. 2 is a sub-flowchart of step S13 in fig. 1.
Fig. 3 is a schematic structural diagram of a cold chain transportation temperature monitoring system according to an embodiment of the present disclosure.
Detailed Description
The following detailed description will further illustrate the present application in conjunction with the above-described figures.
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, an embodiment of the present application provides a method for monitoring a cold chain transportation temperature, including the following steps:
and step S11, acquiring the temperature of the ice bag, the temperature of the storage box and the ambient temperature of the carriage.
It is understood that the temperature of the ice pack refers to the temperature of the ice pack for placing the articles to be transported (e.g., fruits), the temperature of the storage box refers to the temperature of the interior of the box (or a certain space inside the box) directly for placing the articles to be transported, and the ambient temperature of the compartment refers to the temperature of the interior of the compartment in which the box for storing the articles to be transported is placed.
In one possible implementation, the temperature of the ice pack, the temperature of the storage box and the ambient temperature of the compartment are all obtained by placing temperature sensors at corresponding positions. For example, a sensor for acquiring the temperature of the ice bag is arranged beside the ice bag (arranged close to the ice bag). For another example, a temperature sensor that obtains the temperature of the storage tank is placed in the storage tank. For example, a temperature sensor for acquiring the ambient temperature of the vehicle compartment is provided in the vehicle compartment at a position outside the storage box.
And S12, obtaining a temperature difference value according to the temperature of the ice bag and the ambient temperature of the carriage.
It can be understood that the smaller the temperature difference (i.e., the temperature difference) between the temperature of the ice bag and the ambient temperature of the vehicle compartment, the longer the ice cubes in the ice bag can be maintained, and thus the proper ambient temperature can be provided for the articles to be transported in the storage box for a long time. Ice cubes can also continue to provide a suitable ambient temperature for the items to be transported for a period of time, particularly when the storage compartment is out of the environment in the passenger compartment.
And S13, adjusting the set temperature of the refrigerator according to the temperature difference and a preset threshold value.
Please refer to fig. 2, which shows a sub-flowchart of step S13.
Step S131, determining whether the temperature difference reaches a preset threshold, if the temperature difference reaches the preset threshold, executing step S132, and if the temperature difference does not reach the preset threshold, executing step S133.
It will be appreciated that the preset threshold may be obtained from practical tests, for example, and that the ice pack can be maintained for a longer period of time when the temperature difference remains below the preset threshold.
In a possible implementation, the preset threshold is also related to the total number of ice packs (for example the grammage). Different numbers of ice bags are provided for different sizes of storage boxes. That is, the preset threshold may be manually set for different sizes of bins. It will be appreciated that the same size bin is typically used for the same batch of shipping.
And step S132, adjusting the setting temperature of the refrigerator to enable the ambient temperature of the compartment to reach the preset temperature of the ice bag.
It can be understood that after the temperature of the refrigerator is adjusted in the step, the ambient temperature of the carriage can be reduced to reach the preset temperature of the ice bag.
It will be appreciated that the preset temperature of the ice pack will vary from one item to another. The ice bag with different phase changes can be set according to the temperature required to be stored for the articles to be transported, and the preset temperature of the ice bag is the phase change of (the medium in) the ice bag. Such as 0 deg.C phase transition, -6 deg.C phase transition, -12 deg.C phase transition, and-18 deg.C phase transition.
In one possible implementation, the preset temperature of the ice bag is 0 ℃, and normal water is used in the ice bag at the moment. In another possible embodiment, the preset temperature of the ice pack is-6 ℃, and the ice pack in this case may be a dry ice type ice pack, for example.
It can be understood that since the ice bag is set according to the temperature requirement of the transported goods, it has a specific phase change, so that it can always provide a proper temperature to the transported goods before it is completely melted. The temperature in the storage box is thus always in accordance with the temperature requirements of the goods to be transported. And during the ice bag maintaining period, the temperature in the storage box can be always maintained in a constant temperature interval, and the articles to be transported can be well stored in the temperature interval.
It can be understood that the cold machine is set with temperature regulation and is reduced to the ice bag and predetermine the temperature to reduce carriage ambient temperature, and then can be very big reduce the temperature difference between carriage environment and the ice bag, effectively prolong the hold time of ice bag, make the ice bag can last for a long time provide suitable temperature for waiting to transport article.
And step S133, judging whether the compartment ambient temperature is lower than the storage box temperature, and if the compartment ambient temperature is lower than the storage box temperature, adjusting the setting temperature of the refrigerator to enable the compartment ambient temperature to reach the storage box temperature.
It can be understood that the temperatures of the carriage, the storage box and the ice bags are all inconsistent, the temperature of the storage box is lower than the temperature of the ice bags, and the temperature of the ice bags is generally lower than the ambient temperature of the carriage.
It is understood that if the temperature difference between the ambient temperature of the ice pack and the ambient temperature of the vehicle compartment is not large, for example, lower than a preset threshold, it indicates that the ice pack can still be maintained for a long time without intervening on the temperature difference between the ambient temperature of the vehicle compartment and the temperature of the ice pack. The environment where the objects to be transported are located can be ensured by adjusting the temperature of the refrigerator to enable the temperature of the compartment to reach the temperature of the storage box, namely, the temperature of the storage box and the temperature of the compartment can meet the temperature requirement of the objects to be transported. The ambient temperature of the carriage is maintained to be close to the temperature of the storage box instead of being always set to be close to the preset temperature of the ice bag, so that the power consumption of the refrigerator can be reduced.
It will be appreciated that if the ambient temperature of the compartment is maintained below the preset temperature of the ice packs at all times, this may result in the temperature in the storage compartment being below the temperature storage zone suitable for the goods to be transported. For litchi, the proper temperature storage interval is 2-5 ℃, and if the preset temperature of the ice bag is 0 ℃, the litchi is stored in an environment below 0 ℃ for a long time, the litchi can be browned.
Referring to fig. 3, an embodiment of the present application further provides a system 100 for monitoring the temperature of cold chain transportation, where the system 100 for monitoring the temperature of cold chain transportation includes: the refrigerator 20, the storage tank 30, the first temperature sensor 40, the second temperature sensor 50, the third temperature sensor 60, the processor 70, and the storage device 80.
The vehicle 10 is used for placing the storage box 30 and carrying out transportation of goods to be transported under the driving of the vehicle.
The cooler 20 is arranged in the carriage and used for adjusting the ambient temperature in the carriage 10 by setting different cooler setting temperatures.
The storage box 30 is provided in the vehicle compartment 10. The storage box 30 includes a first storage area 31 for storing the items 200 to be transported and a second storage area 32 for storing the ice pack 300.
The first temperature sensor 40 is disposed at the second object region 32. The first temperature sensor 40 is used to measure the temperature of the ice pack 300, i.e., the ice pack temperature.
The second temperature sensor 50 is disposed at the first object region 31. The second temperature sensor 50 is used for measuring the storage temperature of the articles 200 to be transported in the storage box;
the third temperature sensor 60 is provided in the vehicle compartment 10 and outside the storage box 10, and the third temperature sensor 60 is used to measure the ambient temperature in the vehicle compartment 10.
The processor 70 is configured to implement instructions, and the processor 70 is electrically connected to the first temperature sensor 40, the second temperature sensor 50, the third temperature sensor 60, and the cooler 20.
The storage device 80 is used to store instructions that the processing region 70 needs to execute.
The instructions that processor 70 needs to execute and load include: acquiring the temperature of an ice bag, the temperature of a storage box and the ambient temperature of a carriage; obtaining a temperature difference value according to the temperature of the ice bag and the ambient temperature of the carriage; and adjusting the set temperature of the refrigerator according to the temperature difference and a preset threshold value.
In one possible implementation, the instructions are for loading and executing by the processor: and judging whether the temperature difference reaches the preset threshold value, and if the temperature difference reaches the preset threshold value, adjusting the setting temperature of the refrigerator to enable the compartment environment temperature to reach the preset temperature of the ice bag.
In one possible implementation, the instructions are for loading and executing by the processor: and if the temperature difference value does not reach the preset threshold value, adjusting the set temperature of the refrigerator to enable the ambient temperature of the carriage to reach the temperature of the storage box.
In a possible implementation manner, different preset temperatures of the ice bag can be set for different articles to be transported.
In a possible implementation, different bins can set different said preset thresholds.
The Processor 70 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor 70 may be any conventional processor or the like, the processor 70 being the control center for the cold chain transport temperature monitoring system 100, with various interfaces and lines connecting the various parts of the overall cold chain transport temperature monitoring system 100.
The memory 80 may be used to store the computer programs and/or modules/units, and the processor 70 may implement various functions of the cold chain transport temperature monitoring system 100 by running or executing the computer programs and/or modules/units stored in the memory 80 and invoking data stored in the memory 80. The memory 80 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the stored data area may store data (such as audio data, phone books, etc.) created from use of the cold chain transport temperature monitoring system 100, and the like. In addition, the memory 80 may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
It is to be understood that the above-described embodiment of the cold chain transportation temperature monitoring system 100 is merely illustrative, for example, the division of the modules is only a logical functional division, and other division ways may be provided in actual implementation.
The embodiment of the application also provides a computer readable storage medium. The computer readable storage medium has stored therein program instructions that, when executed on a computing device, cause the computing device to execute the cold chain transportation temperature monitoring method provided by the foregoing embodiment.
This application obtains temperature difference between them through acquireing ice bag temperature and carriage ambient temperature, through controlling this temperature difference at reasonable within range to the maintenance time of the ice bag of effective extension in the refrigerator car, even make the goods of waiting to transport also can preserve in a period in the occasion that does not possess the refrigeration condition suitable temperature, avoid appearing the goods because leave the condition that low temperature environment damaged for a long time.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not used as limitations of the present application, and that suitable modifications and changes of the above embodiments are within the scope of the claims of the present application as long as they are within the spirit and scope of the present application.
Claims (8)
1. A cold chain transportation temperature monitoring method is characterized by comprising the following steps:
acquiring the temperature of the ice bag, the temperature of the storage box and the ambient temperature of the carriage;
obtaining a temperature difference value according to the temperature of the ice bag and the ambient temperature of the carriage; and
adjusting the set temperature of the refrigerator according to the temperature difference and a preset threshold value;
wherein, the adjusting the setting temperature of the refrigerator according to the temperature difference value and the preset threshold value comprises: and judging whether the temperature difference reaches the preset threshold value, and if the temperature difference reaches the preset threshold value, adjusting the setting temperature of the refrigerator to enable the compartment environment temperature to reach the preset temperature of the ice bag.
2. The method of claim 1, wherein said adjusting a chiller set temperature based on said temperature difference and a predetermined threshold further comprises:
and if the temperature difference value does not reach the preset threshold value, adjusting the set temperature of the refrigerator to enable the ambient temperature of the carriage to reach the temperature of the storage box.
3. The method of claim 1, wherein a storage box is used to store the articles to be transported, and different predetermined temperatures of the ice pack can be set for different articles to be transported.
4. The method of claim 1, wherein different size bins are capable of setting different said preset thresholds.
5. A cold chain transport temperature monitoring system, the system comprising:
a carriage;
a storage box disposed in the compartment; the storage box comprises a first storage area and a second storage area, wherein the first storage area is used for storing articles to be transported, and the second storage area is used for storing ice bags;
the first temperature sensor is arranged in the second storage area and used for measuring the temperature of the ice bag;
the second temperature sensor is arranged in the first storage area and used for measuring the storage temperature of the articles to be transported in the storage box;
a third temperature sensor disposed in the vehicle compartment and located outside the storage tank, the third temperature sensor being configured to measure a temperature in the vehicle compartment;
the refrigerator is used for adjusting the temperature in the carriage by setting different refrigerator setting temperatures;
the processor is used for realizing instructions and is electrically connected with the first temperature sensor, the second temperature sensor, the third temperature sensor and the refrigerator; and
a storage device to store the instructions;
wherein the instructions are to be loaded and executed by the processor to:
acquiring the temperature of an ice bag, the temperature of a storage box and the ambient temperature of a carriage;
obtaining a temperature difference value according to the temperature of the ice bag and the ambient temperature of the carriage; and
adjusting the set temperature of the refrigerator according to the temperature difference value and a preset threshold value;
and judging whether the temperature difference reaches the preset threshold value, and if the temperature difference reaches the preset threshold value, adjusting the setting temperature of the refrigerator to enable the compartment environment temperature to reach the preset temperature of the ice bag.
6. The system of claim 5, wherein the instructions are to be loaded and executed by the processor to:
and if the temperature difference value does not reach the preset threshold value, adjusting the set temperature of the refrigerator to enable the ambient temperature of the carriage to reach the temperature of the storage box.
7. The system of claim 5, wherein a storage box is used to store the articles to be transported, and different predetermined temperatures of the ice packs can be set for different articles to be transported.
8. The system of claim 5, wherein different sizes of said bins are capable of setting different said preset thresholds.
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| CN202211257410.5A CN115328235B (en) | 2022-10-14 | 2022-10-14 | Cold chain transportation temperature monitoring method and system |
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| CN202211257410.5A CN115328235B (en) | 2022-10-14 | 2022-10-14 | Cold chain transportation temperature monitoring method and system |
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| CN117146521B (en) * | 2023-09-21 | 2024-04-16 | 北京快行线冷链物流有限公司 | Quality management system and method for cold chain transportation based on temperature |
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