CN114942658B - Intelligent temperature control system and method for fruit and vegetable circulation transportation - Google Patents
Intelligent temperature control system and method for fruit and vegetable circulation transportation Download PDFInfo
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- CN114942658B CN114942658B CN202210613724.8A CN202210613724A CN114942658B CN 114942658 B CN114942658 B CN 114942658B CN 202210613724 A CN202210613724 A CN 202210613724A CN 114942658 B CN114942658 B CN 114942658B
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- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 32
- 238000012806 monitoring device Methods 0.000 claims abstract description 25
- 238000005057 refrigeration Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 32
- 238000001816 cooling Methods 0.000 claims description 11
- 235000013311 vegetables Nutrition 0.000 claims description 9
- 230000035945 sensitivity Effects 0.000 claims description 8
- 230000005856 abnormality Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000000246 remedial effect Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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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 invention is suitable for the technical field of fruit and vegetable transportation, and provides an intelligent temperature control system and method for fruit and vegetable circulation transportation, comprising the following steps: the monitoring device is connected with the main control module through the communication module and used for receiving and displaying information processed by the main control module, and is arranged in the transportation cab, can be connected with the vehicle-mounted computer and is convenient to operate and control; the communication module is respectively connected with the monitoring device and the main control module and is used for communicating the monitoring device with the main control module, and the wireless module and the wired module are arranged in the communication module and are used for respectively carrying out wired and wireless information transmission; the device is provided with a monitoring device, a communication module, a main control device, a temperature acquisition module and an alarm module; the operability of the device is greatly improved, the applicability is better, and the device is suitable for long-distance transportation; by adopting different refrigeration fresh-keeping modes for different fruits and vegetables, the energy utilization efficiency is improved, and the fresh-keeping effect of the fruits and vegetables is also improved.
Description
Technical Field
The invention belongs to the technical field of fruit and vegetable transportation, and particularly relates to an intelligent temperature control system and method for fruit and vegetable circulation transportation.
Background
The cold chain transportation mode can be road transportation, waterway transportation, railway transportation and air transportation, and can also be a comprehensive transportation mode formed by a plurality of transportation modes, the cold chain transportation is an important link of cold chain logistics, the cold chain transportation cost is high, the cold chain transportation comprises a more complex mobile refrigeration technology and an incubator manufacturing technology, and the cold chain transportation management comprises more risks and uncertainties;
the conventional cold chain transport case is generally only singly provided with a refrigerating function, and the conventional cold chain transport case achieves the aim of stopping refrigerating at a preset temperature, has high temperature power consumption in long-distance transport and large temperature difference in various places, and when the external temperature changes sharply, the actual temperature in the refrigerator car also changes, so that the quality of fresh agricultural products with high temperature sensitivity is seriously affected, and the conventional cold chain transport cannot be accurately regulated.
Disclosure of Invention
The embodiment of the invention provides an intelligent temperature control system for fruit and vegetable circulation transportation, which is characterized in that the operability of the device is greatly improved, the applicability is better, the intelligent temperature control system is suitable for long-distance transportation, the intelligent temperature control system can be freely and flexibly adjusted, and the energy consumption can be reduced through the combined arrangement of a monitoring device, a communication module, a main control device, a temperature acquisition module and an alarm module.
The embodiment of the invention is realized in such a way that an intelligent temperature control system for fruit and vegetable circulation and transportation comprises:
the system comprises a monitoring device, a communication module, a main control device, a temperature acquisition module and an alarm module;
the monitoring device is connected with the main control module through the communication module and is used for receiving and displaying information processed by the main control module;
the communication module is respectively connected with the monitoring device and the main control module and is used for communicating the monitoring device with the main control module;
the main control module is respectively connected with the temperature control device, the temperature acquisition module and the alarm device and is used for receiving temperature information acquired by the temperature acquisition module and driving the alarm device and the temperature control device to operate;
the temperature control device is connected with the main control module and used for receiving control information of the main control module to adjust the temperature;
the temperature acquisition module is used for acquiring internal and external temperature information;
and the alarm module is used for alarming when the temperature is abnormal.
As a preferred embodiment of the present invention, wherein the temperature control device includes:
the refrigerating device is arranged in the transport case and is used for refrigerating;
the heating device is arranged in the transport case and is used for heating;
the environment temperature balancing module is arranged in the transport case and is used for circulating air to the transport case.
As a preferred embodiment of the present invention, wherein the ambient temperature balancing module comprises:
an air external circulation system for performing air external circulation;
the heat exchange module is connected with the air in an external circulation mode and is used for completing heat exchange;
and the air internal circulation system is connected with the heat exchange module and used for carrying out air internal circulation.
As a preferred embodiment of the present invention, wherein the temperature acquisition module includes:
the environment temperature module is arranged outside the transport case and is used for collecting the environment temperature;
the inside temperature module, inside temperature module installs in the transport case inboard, inside temperature module is used for gathering transport case inside temperature.
As a preferred embodiment of the present invention, wherein the air external circulation system comprises:
the external circulation fan is used for providing circulation power;
the outer circulation air pipe is connected with the outer circulation fan, the outer circulation air pipe is connected with the heat exchange module, and the inlet and the outlet of the circulation air pipe are arranged on the outer side of the transport case.
As a preferred embodiment of the present invention, wherein the air internal circulation system comprises:
the internal circulation fan is used for providing internal circulation power;
the inner circulation air pipe is connected with the inner circulation fan, the inner circulation pipe is connected with the heat exchange module, and the inlet and the outlet of the inner circulation air pipe are arranged on the inner side of the transport case.
As a preferred embodiment of the present invention, the main control device is provided with a storage module, wherein the storage module is internally provided with a program for executing and controlling the components and a preset temperature range required for transporting different fruits and vegetables and temperature sensitivity information of different fruits and vegetables, namely a temperature storage range (T min ，T max )。
An intelligent temperature control method for fruit and vegetable circulation transportation comprises the following steps:
step 1: setting a temperature, setting corresponding vegetable storage temperature information through a main control device, determining the currently transported fruits and vegetables, and determining a storage temperature range (T) according to the types of specific fruits and vegetables min ，T max ) Vegetable sensitivity information x=t max -T min Controlling a control system of the vehicle to regulate and control the temperature;
step 2: acquiring temperature information, and acquiring internal temperature T through a temperature acquisition module n And ambient temperature T y The information and the temperature information are fed back to the main control device through the communication module;
step 3: analyzing the temperature demand, comparing and analyzing the temperature information with the storage temperature information after receiving the temperature information through the main control device, starting a protection mode according to the external temperature change, issuing a corresponding instruction to the temperature control device, simultaneously monitoring the internal temperature change in real time, and judging whether the power needs to be increased or not, namely the temperature T at the moment k y(k) Temperature T at time k+n y(k+n) Temperature difference combined with storage temperature range (T) min ，T max ) Performing comparison and analysis, starting a protection mode, |T y(k+n) -T y(k) The I is more than x, x is an alarm range, and the power of the refrigerating module and the heating module is increased;
step 4: when the protection mode is started, the refrigeration power and the heating power are selectively increased according to the type of the protection mode, and the temperature exchange between the inside and the outside of the vehicle is reduced so as to maintain the temperature in the vehicle;
step 5: monitoring and real-time alarming, internal temperature T n ＞T max Or internal temperature T n ＜T min When the temperature does not accord with the storage temperature, the main control module drives the alarm module to alarm and feeds the temperature back to the monitoring device in real time, and meanwhile, the corresponding temperature rising or reducing instruction information is issued to remind the temperature of abnormality so as to facilitate the remedial measure of the personnel on the vehicle.
In a preferred embodiment of the present invention, the communication mode of the communication module in the step 2 includes two modes of wired communication and wireless communication.
As a preferred embodiment of the present invention, wherein the temperature control has three protection modes, respectively:
in the refrigeration mode, when the temperature needs to be reduced, when T y(k+n) -T y(k) ＞0，T y(k+n) ＞T max ，T n ＞T y(k+n) Simultaneously starting an environment temperature balance module and a refrigeration module, carrying away heat of air in the vehicle by utilizing air temperature to perform heat exchange, simultaneously performing refrigeration, and when T is y(k+n) -T y(k) ＞0，T y(k+n) ＞T max ，T n ＜T y(k+n) The operation of the environment temperature balancing module is stopped, and the refrigeration module is operated until T min ＜T n ＜T max ；
Heating mode, when heating is needed, when T y(k+n) -T y(k) ＜0，T y(k+n) ＜T min ，T n ＜T y(k+n) Simultaneously starting an environment temperature balance module and a heating module, carrying away air heat in the vehicle by utilizing air temperature to perform heat exchange, simultaneously heating, and when T is y(k+n) -T y(k) ＜0，T y(k+n) ＜T min ，T n ＞T y(k+n) The environment temperature balancing module stops working, and the heating module works until T min ＜T n ＜T max ；
Equilibrium mode, when ambient temperature reaches storage requirement, i.e. T min ＜T y(k+n) ＜T max Only start the ambient temperatureAnd the temperature balance module is used for circularly ensuring that the temperature in the vehicle reaches the storage requirement through the air temperature circulation module.
The invention has the beneficial effects that: the device is provided with a monitoring device, a communication module, a main control device, a temperature acquisition module and an alarm module; the operability of the device is greatly improved, the applicability is better, the device is suitable for long-distance transportation, and the device can be freely and flexibly adjusted; the environment temperature balance module is arranged in the temperature control device, so that the energy consumption is reduced when the temperature control device is used; by adopting different refrigeration fresh-keeping modes for different fruits and vegetables, the energy utilization efficiency is improved, and the fresh-keeping effect of the fruits and vegetables is also improved.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a schematic block diagram of an example of the present invention;
FIG. 3 is a schematic block diagram of an example two of the present invention;
FIG. 4 is an example three principle block diagram of the present invention;
FIG. 5 is a block diagram of a temperature control device of the present invention;
FIG. 6 is a block diagram of a temperature acquisition module of the present invention;
fig. 7 is a structural view of the air circulation system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention can effectively inhibit the color noise of the image and reduce the influence of the color noise on the image in the capturing, processing and transmitting processes of the image.
Example 1
Referring to fig. 1-7, an intelligent temperature control system for fruit and vegetable circulation transportation comprises:
the system comprises a monitoring device, a communication module, a main control device, a temperature acquisition module and an alarm module;
the monitoring device is connected with the main control module through the communication module and used for receiving and displaying information processed by the main control module, and is arranged in the transportation cab, can be connected with the vehicle-mounted computer and is convenient to operate and control;
the communication module is respectively connected with the monitoring device and the main control module and is used for communicating the monitoring device with the main control module, and the wireless module and the wired module are arranged in the communication module and are used for respectively carrying out wired and wireless information transmission;
the main control module is respectively connected with the temperature control device, the temperature acquisition module and the alarm device and is used for receiving temperature information acquired by the temperature acquisition module and driving the alarm device and the temperature control device to operate;
the temperature control device is connected with the main control module and used for receiving control information of the main control module to adjust the temperature;
the temperature acquisition module is used for acquiring internal and external temperature information, wherein a plurality of groups of temperature acquisition modules are arranged, and the plurality of groups of temperature acquisition modules are arranged at different positions, and the arrangement mode can detect local temperature abnormality;
the alarm module is used for alarming when the temperature is abnormal, and the alarm module is connected with the main control module.
In this scheme, temperature control device includes:
the refrigerating device is arranged in the transport case and is used for refrigerating;
the environment temperature balancing module is arranged in the transport case and is used for carrying out air circulation on the transport case;
when in use, the refrigerating device is started when the temperature is reduced, and the temperature of the transport container is reduced by the environment temperature balancing module, so that the cooling effect is improved, and the cooling energy consumption is reduced.
In this scheme, the ambient temperature balance module includes:
an air external circulation system for performing air external circulation;
the heat exchange module is connected with the air in an external circulation mode and is used for completing heat exchange;
an air internal circulation system, which is connected with the heat exchange module, and is used for air internal circulation,
this balanced module simple structure is convenient to be maintained, and in the practical time, can effectively avoid with external intercommunication, prevent that vegetables from receiving the pollution, and can carry out the air internal circulation, is inside cooling and intensification speed improvement.
In this scheme, the temperature acquisition module includes:
the environment temperature module is arranged outside the transport case and is used for collecting the environment temperature;
the internal temperature module is arranged on the inner side of the transport case and is used for collecting the internal temperature of the transport case;
this arrangement facilitates simultaneous measurement of internal and external temperatures.
In this scheme, the outer circulation system of air includes:
the external circulation fan is used for providing circulation power;
the outer circulation air pipe is connected with the outer circulation fan, the outer circulation air pipe is connected with the heat exchange module, and the inlet and the outlet of the circulation air pipe are arranged on the outer side of the transport case;
the external circulation system has a simple structure and is convenient to maintain.
In this scheme, the air internal circulation system includes:
the internal circulation fan is used for providing internal circulation power;
the inner circulation air pipe is connected with the inner circulation fan, the inner circulation pipe is connected with the heat exchange module, and the inlet and the outlet of the inner circulation air pipe are arranged at the inner side of the transport case
The internal circulation system has a simple structure and is convenient to maintain.
In this scheme, the main control device is provided with a built-in storage module, and the storage module is internally provided with a program for executing and controlling the above components, a preset temperature range required for transporting different fruits and vegetables, and a temperature storage range (T) which is information of temperature sensitivity of different fruits and vegetables min ，T max )。
The working principle is that firstly, the storage temperature is set, the temperature acquisition module acquires temperature information and sends the information to the main control device, when the main control device judges that the temperature needs to be reduced, the environment temperature is lower than the temperature of a carriage, the environment temperature balancing module and the refrigerating module are started simultaneously, the air temperature is utilized to carry out heat exchange to take away the heat of the air in the vehicle, and meanwhile, the refrigerating is carried out, so that the temperature energy consumption is reduced, and the temperature is reduced simultaneously and the speed is accelerated.
Example two
Referring to fig. 1-7, an intelligent temperature control system for fruit and vegetable circulation transportation comprises:
the system comprises a monitoring device, a communication module, a main control device, a temperature acquisition module and an alarm module;
the monitoring device is connected with the main control module through the communication module and used for receiving and displaying information processed by the main control module, and is arranged in the transportation cab, can be connected with the vehicle-mounted computer and is convenient to operate and control;
the communication module is respectively connected with the monitoring device and the main control module and is used for communicating the monitoring device with the main control module, and the wireless module and the wired module are arranged in the communication module and are used for respectively carrying out wired and wireless information transmission;
the main control module is respectively connected with the temperature control device, the temperature acquisition module and the alarm device and is used for receiving temperature information acquired by the temperature acquisition module and driving the alarm device and the temperature control device to operate;
the temperature control device is connected with the main control module and used for receiving control information of the main control module to adjust the temperature;
the temperature acquisition module is used for acquiring internal and external temperature information, wherein a plurality of groups of temperature acquisition modules are arranged, and the plurality of groups of temperature acquisition modules are arranged at different positions, and the arrangement mode can detect local temperature abnormality;
the alarm module is used for alarming when the temperature is abnormal, and the alarm module is connected with the main control module.
In this scheme, temperature control device includes:
the heating device is arranged in the transport case and is used for heating;
the environment temperature balancing module is arranged in the transport case and is used for carrying out air circulation on the transport case;
when in use, the refrigerating device is started when the temperature is reduced, and the temperature of the transport container is reduced by the environment temperature balancing module, so that the cooling effect is improved, and the cooling energy consumption is reduced.
In this scheme, the ambient temperature balance module includes:
an air external circulation system for performing air external circulation;
the heat exchange module is connected with the air in an external circulation mode and is used for completing heat exchange;
an air internal circulation system, which is connected with the heat exchange module, and is used for air internal circulation,
this balanced module simple structure is convenient to be maintained, and in the practical time, can effectively avoid with external intercommunication, prevent that vegetables from receiving the pollution, and can carry out the air internal circulation, is inside cooling and intensification speed improvement.
In this scheme, the temperature acquisition module includes:
the environment temperature module is arranged outside the transport case and is used for collecting the environment temperature;
the internal temperature module is arranged on the inner side of the transport case and is used for collecting the internal temperature of the transport case;
this arrangement facilitates simultaneous measurement of internal and external temperatures.
In this scheme, the outer circulation system of air includes:
the external circulation fan is used for providing circulation power;
the outer circulation air pipe is connected with the outer circulation fan, the outer circulation air pipe is connected with the heat exchange module, and the inlet and the outlet of the circulation air pipe are arranged on the outer side of the transport case;
the external circulation system has a simple structure and is convenient to maintain.
In this scheme, the air internal circulation system includes:
the internal circulation fan is used for providing internal circulation power;
the inner circulation air pipe is connected with the inner circulation fan, the inner circulation pipe is connected with the heat exchange module, and the inlet and the outlet of the inner circulation air pipe are arranged at the inner side of the transport case
The internal circulation system has a simple structure and is convenient to maintain.
In this scheme, the main control device is provided with a built-in storage module, and the storage module is internally provided with a program for executing and controlling the above components, a preset temperature range required for transporting different fruits and vegetables, and a temperature storage range (T) which is information of temperature sensitivity of different fruits and vegetables min ，T max )。
Working principle: firstly, setting storage temperature, collecting temperature information by a temperature collecting module, sending the information to a main control device, judging a heating mode by the main control device, when heating is needed, enabling an environment temperature to be higher than the temperature of a carriage, simultaneously starting an environment temperature balancing module and a heating module, performing heat exchange by using air temperature to heat the inside of the car, and simultaneously heating the car, thereby being beneficial to accelerating heating and reducing heating energy consumption.
Example III
Referring to fig. 1-7, an intelligent temperature control system for fruit and vegetable circulation transportation includes:
the system comprises a monitoring device, a communication module, a main control device, a temperature acquisition module and an alarm module;
the monitoring device is connected with the main control module through the communication module and used for receiving and displaying information processed by the main control module, and is arranged in the transportation cab, can be connected with the vehicle-mounted computer and is convenient to operate and control;
the communication module is respectively connected with the monitoring device and the main control module and is used for communicating the monitoring device with the main control module, and the wireless module and the wired module are arranged in the communication module and are used for respectively carrying out wired and wireless information transmission;
the main control module is respectively connected with the temperature control device, the temperature acquisition module and the alarm device and is used for receiving temperature information acquired by the temperature acquisition module and driving the alarm device and the temperature control device to operate;
the temperature control device is connected with the main control module and used for receiving control information of the main control module to adjust the temperature;
the temperature acquisition module is used for acquiring internal and external temperature information, wherein a plurality of groups of temperature acquisition modules are arranged, and the plurality of groups of temperature acquisition modules are arranged at different positions, and the arrangement mode can detect local temperature abnormality;
the alarm module is used for alarming when the temperature is abnormal, and the alarm module is connected with the main control module.
In this scheme, temperature control device includes:
the environment temperature balancing module is arranged in the transport case and is used for carrying out air circulation on the transport case;
when in use, the refrigerating device is started when the temperature is reduced, and the temperature of the transport container is reduced by the environment temperature balancing module, so that the cooling effect is improved, and the cooling energy consumption is reduced.
In this scheme, the ambient temperature balance module includes:
an air external circulation system for performing air external circulation;
the heat exchange module is connected with the air in an external circulation mode and is used for completing heat exchange;
an air internal circulation system, which is connected with the heat exchange module, and is used for air internal circulation,
this balanced module simple structure is convenient to be maintained, and in the practical time, can effectively avoid with external intercommunication, prevent that vegetables from receiving the pollution, and can carry out the air internal circulation, is inside cooling and intensification speed improvement.
In this scheme, the temperature acquisition module includes:
the environment temperature module is arranged outside the transport case and is used for collecting the environment temperature;
the internal temperature module is arranged on the inner side of the transport case and is used for collecting the internal temperature of the transport case;
this arrangement facilitates simultaneous measurement of internal and external temperatures.
In this scheme, the outer circulation system of air includes:
the external circulation fan is used for providing circulation power;
the outer circulation air pipe is connected with the outer circulation fan, the outer circulation air pipe is connected with the heat exchange module, and the inlet and the outlet of the circulation air pipe are arranged on the outer side of the transport case;
the external circulation system has a simple structure and is convenient to maintain.
In this scheme, the air internal circulation system includes:
the internal circulation fan is used for providing internal circulation power;
the inner circulation air pipe is connected with the inner circulation fan, the inner circulation pipe is connected with the heat exchange module, and the inlet and the outlet of the inner circulation air pipe are arranged at the inner side of the transport case
The internal circulation system has a simple structure and is convenient to maintain.
In this scheme, the main control device is provided with a built-in storage module, and the storage module is internally provided with a program for executing and controlling the above components, a preset temperature range required for transporting different fruits and vegetables, and a temperature storage range (T) which is information of temperature sensitivity of different fruits and vegetables min ，T max )。
Working principle: firstly, setting storage temperature, collecting temperature information by a temperature collecting module, sending the information to a main control device, and when the main control device judges that the ambient temperature reaches the storage requirement, only starting an ambient temperature balancing module, and circularly guaranteeing that the temperature in a vehicle reaches the storage requirement by an air temperature circulating module, so that the temperature caused by self-heating of fruits and vegetables can be reduced, and the energy consumption can be effectively saved by the temperature balancing mode.
Example 4:
step 1: setting a temperature, setting corresponding vegetable storage temperature information through a main control device, determining the currently transported fruits and vegetables, and determining a storage temperature range (T) according to the types of specific fruits and vegetables min ，T max ) Vegetable sensitivity information x=t max -T min Controlling a control system of the vehicle to regulate and control the temperature;
step 2: acquiring temperature information, and acquiring internal temperature T through a temperature acquisition module n And ambient temperature T y The information and the temperature information are fed back to the main control device through the communication module;
step 3: analyzing the temperature demand, comparing and analyzing the temperature information with the storage temperature information after receiving the temperature information through the main control device, starting a protection mode according to the external temperature change, issuing a corresponding instruction to the temperature control device, simultaneously monitoring the internal temperature change in real time, and judging whether the power needs to be increased or not, namely the temperature T at the moment k y(k) Temperature T at time k+n y(k+n) Temperature difference combined with storage temperature range (T) min ，T max ) Performing comparison and analysis, starting a protection mode, |T y(k+n) -T y(k) The value of the I is more than x, and x is an alert range, wherein the alert range is adjusted according to the actual storage temperature and climate condition of the stored fruits, and the power of the refrigerating module and the heating module is increased, so that the fruit storage temperature and the climate condition are improvedThe temperature control has three protection modes:
in the refrigeration mode, when the temperature needs to be reduced, when T y(k+n) -T y(k) ＞0，T y(k+n) ＞T max ，T n ＞T y(k+n) Simultaneously starting an environment temperature balance module and a refrigeration module, carrying away heat of air in the vehicle by utilizing air temperature to perform heat exchange, simultaneously performing refrigeration, and when T is y(k+n) -T y(k) ＞0，T y(k+n) ＞T max ，T n ＜T y(k+n) The operation of the environment temperature balancing module is stopped, and the refrigeration module is operated until T min ＜T n ＜T max ；
Heating mode, when heating is needed, when T y(k+n) -T y(k) ＜0，T y(k+n )＜T min ，T n ＜T y(k+n) Simultaneously starting an environment temperature balance module and a heating module, carrying away air heat in the vehicle by utilizing air temperature to perform heat exchange, simultaneously heating, and when T is y(k+n) -T y(k) ＜0，T y(k+n) ＜T min ，T n ＞T y(k+n) The environment temperature balancing module stops working, and the heating module works until T min ＜T n ＜T max ；
Equilibrium mode, when ambient temperature reaches storage requirement, i.e. T min ＜T y(k+n) ＜T max Only the ambient temperature balance module is started, and the temperature inside the vehicle is circularly ensured to reach the storage requirement through the air temperature circulation module;
step 4: when the protection mode is started, the refrigeration power and the heating power are selectively increased according to the type of the protection mode, and the temperature exchange between the inside and the outside of the vehicle is reduced so as to maintain the temperature in the vehicle;
step 5: monitoring and real-time alarming, internal temperature T n ＞T max Or internal temperature T n ＜T min When the temperature does not accord with the storage temperature, the main control module drives the alarm module to alarm and feeds the temperature back to the monitoring device in real time, and meanwhile, the corresponding temperature raising or lowering instruction information is issued to remind the temperature of abnormality so as to facilitate the onboard personnelThe person takes remedial action.
In the embodiment, different refrigeration and preservation modes are adopted for different fruits and vegetables, so that the energy utilization efficiency is improved, and the preservation effect of the fruits and vegetables is also improved.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in various embodiments may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the sub-steps or stages of other steps or other steps.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (2)
1. An intelligent temperature control method for fruit and vegetable circulation and transportation is characterized by comprising the following steps:
step 1: setting a temperature, setting corresponding vegetable storage temperature information through a main control device, determining the currently transported fruits and vegetables, and determining a storage temperature range (T) according to the types of specific fruits and vegetables min ，T max ) Vegetable sensitivity information x=t max -T min Controlling a control system of the vehicle to regulate and control the temperature;
step 2: acquiring temperature information, and acquiring internal temperature T through a temperature acquisition module n And ambient temperature T y The information and the temperature information are fed back to the main control device through the communication module;
step 3: analyzing the temperature demand, comparing and analyzing the temperature information with the storage temperature information after receiving the temperature information through the main control device, starting a protection mode according to the external temperature change, issuing a corresponding instruction to the temperature control device, simultaneously monitoring the internal temperature change in real time, and judging whether the power needs to be increased or not, namely the temperature T at the moment k y(k) Temperature T at time k+n y(k+n) Temperature difference combined with storage temperature range (T) min ，T max ) Performing comparison and analysis, starting a protection mode, |T y(k+n) -T y(k) |>x, x is the warning range, increase the power of refrigerating module and heating module;
step 4: when the protection mode is started, the refrigeration power and the heating power are selectively increased according to the type of the protection mode, and the temperature exchange between the inside and the outside of the vehicle is reduced so as to maintain the temperature in the vehicle;
step 5: monitoring and real-time alarming, internal temperature T n >T max Or internal temperature T n <T min When the temperature does not accord with the storage temperature, the main control module drives the alarm module to alarm and feeds back the temperature to the monitoring device in real time, and meanwhile, the corresponding temperature rising or reducing instruction information is issued to remind the temperature of abnormality so as to facilitate the remedial measure of the personnel on the vehicle;
the temperature control has three protection modes:
cooling mode when cooling is requiredWait, when T y(k+n) -T y(k) >0，T y(k+n) >T max ，T n >T y(k+n) Simultaneously starting an environment temperature balance module and a refrigeration module, carrying away heat of air in the vehicle by utilizing air temperature to perform heat exchange, simultaneously performing refrigeration, and when T is y(k+n) -T y(k) >0，T y(k+n) >T max ，T n <T y(k+n) The operation of the environment temperature balancing module is stopped, and the refrigeration module is operated until T min <T n <T max ；
Heating mode, when heating is needed, when T y(k+n) -T y(k) <0，T y(k+n) <T min ，T n <T y(k+n) Simultaneously starting an environment temperature balance module and a heating module, carrying away air heat in the vehicle by utilizing air temperature to perform heat exchange, simultaneously heating, and when T is y(k+n) -T y(k) <0，T y(k+n) <T min ，T n >T y(k+n) The environment temperature balancing module stops working, and the heating module works until T min <T n <T max ；
Equilibrium mode, when ambient temperature reaches storage requirement, i.e. T min <T y(k+n) <T max Only the ambient temperature balance module is started, and the temperature inside the vehicle is circularly guaranteed to reach the storage requirement through the air temperature circulation module.
2. The intelligent temperature control method for fruit and vegetable circulation transportation according to claim 1, wherein the communication mode of the communication module in the step 2 comprises two modes of wired communication and wireless communication.
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