Unmanned aerial vehicle refrigerator system, control method and device thereof and storage medium

Abstract

The invention discloses a control method and device of an unmanned aerial vehicle refrigerator system, the unmanned aerial vehicle refrigerator system, a storage medium and a computer program product, the unmanned aerial vehicle refrigerator system comprises a refrigerator and an unmanned aerial vehicle, a condenser of the refrigerator is located in the lower washing direction of paddles of the unmanned aerial vehicle, and the condenser is in an unfolded state and a folded state; the heat dissipation efficiency in the unfolded state is higher than the heat dissipation efficiency in the folded state; the method comprises the steps that after the system is started, the state of the condenser and the rotating speed of the blades are controlled according to a control instruction input by a user. According to the scheme, the blades of the unmanned aerial vehicle are used for cooling the condenser, the condenser is controlled to be unfolded or folded, and the rotating speed of the blades is controlled to adjust the condensation efficiency during refrigeration, so that the temperature in the refrigerator is accurately controlled, temperature fluctuation is avoided, and the stability of temperature control is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to a control method and device for an unmanned aerial vehicle refrigerator system, an unmanned aerial vehicle refrigerator system, a storage medium and a computer program product. Background Art

[0002] With the rapid development of e-commerce, medical and food industries, the demand for cold chain logistics has increased dramatically. Traditional cold chain logistics methods usually rely on ground transportation, such as trucks and railways, which have many limitations in terms of transportation efficiency, cost and flexibility. Especially for the distribution of materials in remote areas, emergencies or special circumstances, traditional transportation methods are often difficult to meet the needs, so the relevant solutions use drones for cold chain transportation.

[0003] However, cold chain transportation by drones is subject to the performance of insulation materials and is easily affected by factors such as ambient temperature and flight speed, resulting in unstable temperature control. For example, some solutions use foam and insulation panels to maintain low temperatures. Although these materials have a certain insulation effect, the insulation effect will gradually decrease during long-term transportation or in extreme environments, and the insulation material cannot completely isolate the influence of the external temperature, especially in high or low temperature environments. The temperature fluctuates greatly, resulting in unstable temperature in the refrigerator. In addition, drones lack an active refrigeration system to maintain a stable low-temperature environment, and there is no complete temperature control system. It is impossible to monitor and adjust the temperature in the refrigerator in real time, resulting in temperature fluctuations in the refrigerator.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The object of the present invention is to provide a control method and device for a drone refrigerator system, a drone refrigerator system, a storage medium and a computer program product, so as to solve the problem that the drone cold chain transportation is greatly affected by the external environment temperature, resulting in temperature fluctuations of the refrigerator and inability to maintain a stable low-temperature environment for a long time. The purpose of the present invention is to achieve the effect of utilizing the drone's blades to dissipate heat for the condenser, controlling the expansion or folding of the condenser and the rotation speed of the blades to adjust the condensation efficiency during refrigeration, thereby accurately controlling the temperature in the refrigerator, avoiding temperature fluctuations, and improving the stability of temperature control.

[0006] The present invention provides a control method for a drone refrigerator system, the drone refrigerator system comprising: a refrigerator, a drone; the drone is used to carry the refrigerator for flight; the drone comprises blades; the refrigerator comprises a condenser; the condenser is located in the downwash direction of the blades; the states of the condenser include a stowed state and an unfolded state; the heat dissipation efficiency of the condenser in the unfolded state is greater than the heat dissipation efficiency in the stowed state; the method comprises: obtaining a control instruction input by a user; and controlling the state of the condenser and the rotation speed of the blades according to the control instruction.

[0007] In some embodiments, the state of the condenser and the rotation speed of the blades are controlled according to the control instruction, including: when the drone is not in flight, if the control instruction is an instruction to turn on a preset cooling mode, the state of the condenser is controlled to the expanded state and the rotation speed of the blades is controlled to the preset speed to start cooling the refrigerator.

[0008] In some embodiments, the refrigerator further includes a refrigerator door; the method further includes: before starting to refrigerate the refrigerator, obtaining the weight of the items in the refrigerator; determining whether the weight of the items in the refrigerator is greater than a preset weight and whether the refrigerator door is closed; if the weight of the items in the refrigerator is greater than the preset weight, issuing a prompt message that the items are overweight; if the weight of the items in the refrigerator is less than or equal to the preset weight and the refrigerator door is closed, starting to refrigerate the refrigerator; if the weight of the items in the refrigerator is less than or equal to the preset weight and the refrigerator door is open, issuing a prompt message that the refrigerator door is not closed, and not refrigerating the refrigerator.

[0009] In some embodiments, controlling the state of the condenser and the rotational speed of the blades according to the control instruction also includes: when the UAV is in a flight state, if the control instruction is an instruction to turn on a preset speed limit function, obtaining the current temperature of the refrigerator; determining the target rotational speed of the blades according to the current temperature of the refrigerator from the corresponding relationship between the preset temperature of the refrigerator and the rotational speed of the blades; and controlling the rotational speed of the blades to be the target rotational speed.

[0010] In some embodiments, the control instruction includes a set speed of the blade; controlling the state of the condenser and the speed of the blade according to the control instruction also includes: when the UAV is in a flight state, if the control instruction is an instruction to turn off a preset speed limit function, then controlling the speed of the blade to the set speed.

[0011] In some embodiments, controlling the state of the condenser and the rotation speed of the blades according to the control instruction also includes: if the control instruction is an instruction to turn on a preset temperature limit function, then controlling the state of the condenser to the deployed state; when the preset speed limit function is turned off, if the control instruction is an instruction to turn off the preset temperature limit function, then controlling the state of the condenser to the retracted state.

[0012] Matching the above method, the present invention provides, on the other hand, a control device for a drone refrigerator system, the drone refrigerator system comprising: a refrigerator, a drone; the drone is used to carry the refrigerator for flight; the drone comprises blades; the refrigerator comprises a condenser; the condenser is located in the downwash direction of the blades; the state of the condenser comprises a stowed state and an unfolded state; the heat dissipation efficiency of the condenser in the unfolded state is greater than the heat dissipation efficiency in the stowed state; the device comprises: an acquisition unit, configured to acquire a control instruction input by a user; a control unit, configured to control the state of the condenser and the rotation speed of the blades according to the control instruction.

[0013] In some embodiments, the control unit controls the state of the condenser and the rotation speed of the blades according to the control instruction, including: when the drone is not in flight, if the control instruction is an instruction to turn on a preset cooling mode, then the state of the condenser is controlled to the expanded state and the rotation speed of the blades is controlled to the preset speed to start cooling the refrigerator.

[0014] In some embodiments, the refrigerator further includes a refrigerator door; the control unit is further configured to obtain the weight of items in the refrigerator before starting to refrigerate the refrigerator; determine whether the weight of the items in the refrigerator is greater than a preset weight and whether the refrigerator door is closed; if the weight of the items in the refrigerator is greater than the preset weight, a prompt message indicating that the items are overweight is issued; if the weight of the items in the refrigerator is less than or equal to the preset weight and the refrigerator door is closed, the refrigerator starts to be refrigerated; if the weight of the items in the refrigerator is less than or equal to the preset weight and the refrigerator door is open, a prompt message indicating that the refrigerator door is not closed is issued, and the refrigerator is not refrigerated.

[0015] In some embodiments, the control unit controls the state of the condenser and the rotation speed of the blade according to the control instruction, and also includes: when the drone is in a flight state, if the control instruction is an instruction to turn on a preset speed limit function, obtaining the current temperature of the refrigerator; determining the target rotation speed of the blade according to the current temperature of the refrigerator from the corresponding relationship between the preset temperature of the refrigerator and the rotation speed of the blade; and controlling the rotation speed of the blade to the target rotation speed.

[0016] In some embodiments, the control instruction includes a set speed of the blade; the control unit controls the state of the condenser and the speed of the blade according to the control instruction, and also includes: when the drone is in a flight state, if the control instruction is an instruction to turn off a preset speed limit function, then the speed of the blade is controlled to the set speed.

[0017] In some embodiments, the control unit controls the state of the condenser and the speed of the blades according to the control instruction, and also includes: if the control instruction is an instruction to turn on a preset temperature limit function, the state of the condenser is controlled to be the deployed state; when the preset speed limit function is turned off, if the control instruction is an instruction to turn off the preset temperature limit function, the state of the condenser is controlled to be the retracted state.

[0018] Matching the above-mentioned device, the present invention further provides a drone refrigerator system on the other hand, including: the control device of the drone refrigerator system described above.

[0019] In accordance with the above method, the present invention provides a storage medium on the other hand, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the control method of the drone refrigerator system described above.

[0020] In accordance with the above method, the present invention provides a computer program product on the other hand, which includes a computer program, and when the computer program product is processed and executed, it implements the steps of the control method of the above drone refrigerator system.

[0021] According to the solution of the present invention, the drone refrigerator system includes a refrigerator and a drone. The condenser of the refrigerator is located in the downwash direction of the drone's blades. The condenser has two states: an expanded state and a retracted state, and the heat dissipation efficiency in the expanded state is greater than that in the retracted state. After the system is turned on, the state of the condenser and the rotation speed of the blades are controlled according to the control instructions input by the user. Thus, by utilizing the drone's blades to dissipate heat for the condenser, controlling the expansion or retraction of the condenser and the rotation speed of the blades to adjust the condensation efficiency during refrigeration, the temperature in the refrigerator can be accurately controlled to avoid temperature fluctuations and improve the stability of temperature control.

[0022] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention.

[0023] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a flow chart of an embodiment of a method for controlling a drone refrigerator system of the present invention;

[0025] Figure 2 It is a structural schematic diagram of an embodiment of a control device for a drone refrigerator system of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a drone in the drone refrigerator system of the present invention;

[0027] Figure 4 It is a structural schematic diagram of a refrigerator in the drone refrigerator system of the present invention;

[0028] Figure 5 This is a schematic diagram of the condenser being folded up;

[0029] Figure 6 It is a schematic diagram of the unfolded side surface of the rotating body of the condenser;

[0030] Figure 7 is a schematic diagram of a slidable heat dissipation copper sheet nested on the side surface of a rotating body;

[0031] Figure 8 It is a schematic flow chart of the refrigeration principle of the drone refrigerator system of the present invention;

[0032] Fig. 9 The figure is a flow chart of a control method of the drone refrigerator system in flight mode of the present invention.

[0033] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0034] 1-freezer; 2-blade; 3-condenser; 4-motor; 5-bracket; 6-baffle; 7-freezer door; 8-display screen; 9-evaporator; 10-compressor; 11-controller; 12-power box; 102-acquisition unit; 104-control unit. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] According to an embodiment of the present invention, a control method for a drone refrigerator system is provided, wherein the drone refrigerator system comprises: a refrigerator, a drone; the drone is used to carry the refrigerator for flight; the drone comprises blades; the refrigerator comprises a condenser; the condenser is located in the downwash direction of the blades; the states of the condenser include a stowed state and an unfolded state; the heat dissipation efficiency of the condenser in the unfolded state is greater than the heat dissipation efficiency in the stowed state.

[0037] The structure of the drone refrigerator system is as follows Figure 3 As shown, it includes a refrigerator 1 and a drone. The drone includes: blades 2, motors 4, and brackets 5, and the number of blades, motors, and brackets corresponds to each other. The blades are driven by the motor, and each combination of blades and motors is connected to the refrigerator through the bracket.

[0038] The structure of the refrigerator 1 is as follows Figure 4 As shown, it includes a controller 11, a compressor 10, a power box 12, an evaporator 9, a condenser 3, a refrigerator door 7, and a display screen 8. The compressor 10, the evaporator 9, and the condenser 3 form a refrigeration circuit. In the refrigeration mode, the high-temperature and high-pressure refrigerant discharged by the compressor 10 is cooled to a low-temperature refrigerant by the condenser 3, and then the cold energy is dissipated into the chamber of the refrigerator at the evaporator 9. The controller 9 is used to control the drone and the refrigerator according to the user's operating instructions, and the display screen 8 is used to display the status of the refrigerator, such as the temperature inside the refrigerator. The refrigerator also includes components required to control the flight of the drone, such as a camera, an altitude radar, a GPS positioning device, and a landing gear.

[0039] The condenser of the refrigerator is set in the downwash direction of the drone's blades, and the refrigerant inlet and outlet pipes connected to the condenser are set on the bracket. The condenser can be unfolded and retracted in a fan-shaped rotation with the central axis of the blade fan. Figure 3 The middle condenser is in fully expanded state. Figure 5 The condenser is in a fully retracted state. When the propeller blades rotate, the airflow formed by the rotation of the propeller blades passes through the condenser to dissipate heat for the condenser. When the condenser is unfolded, the contact area between the airflow and the condenser increases, and the heat dissipation efficiency of the condenser is higher; when the condenser is retracted, the contact area between the airflow and the condenser decreases, and the heat dissipation efficiency of the condenser is lower. Therefore, there is no need to set up a condensing fan for the condenser, and the propeller blades of the drone are used to dissipate heat for the condenser, which reduces the energy consumption of the system and extends the flight time of the drone.

[0040] Furthermore, the condenser rotates around the rotating body, and the rotating body is driven by a motor. Figure 6 As shown in FIG. 1 , a plurality of openings are provided on the side of the rotating body. The structure of the condenser is as follows: Figure 7The condenser is composed of multiple radiator copper sheets. The radiator copper sheet has a protruding structure. After the protruding structure is embedded in the opening on the side of the rotating body, the radiator copper sheet can slide with the rotation of the rotating body. The protruding structure has magnetism, which allows the protruding structure to fit tightly with the rotating body. When the condenser needs to be unfolded, the rotating body rotates and drives the corresponding radiator copper sheet to slide; when the condenser needs to be folded, Figure 6 The baffle 6 on the left side pushes all the copper sheets to move to one side. When the copper sheets touch the bracket, the raised structure of the copper sheets is disconnected from the opening on the side of the rotating body, so that the heat dissipation copper sheets are concentrated on one side of the bracket to achieve the folding of the condenser. In the cooling mode, the heat of the high-temperature and high-pressure refrigerant is transferred to the cabinet body, the bracket, and the condenser composed of multiple groups of copper sheets located under the blades to achieve the condensation effect.

[0041] Optionally, the cabinet body, bracket, landing gear, etc. of the freezer are made of aviation-grade aluminum alloy, which reduces the overall weight while ensuring strength, and has good thermal conductivity to ensure that components such as the compressor, power supply, and controller will not overheat.

[0042] This solution uses a foldable condenser to significantly reduce the weight of the condensation system, and uses the airflow formed by the rotation of the drone blades to dissipate heat for the condenser, ensuring that a constant low temperature is maintained throughout the transportation process and avoiding the impact of temperature fluctuations on the quality of the goods. The system is suitable for long-distance transportation, especially for items that need to be kept at a low temperature for a long time, such as biological products, medicines, and fresh food. It can not only transport temperature-sensitive goods, but also special items that require a specific temperature range, expanding the application scope of drone transportation.

[0043] like Figure 1 The flowchart of an embodiment of the method of the present invention is shown in FIG. The control method of the drone refrigerator system may include: step S110 and step S120.

[0044] In step S110 , a control instruction input by a user is obtained.

[0045] In step S120, the state of the condenser and the rotation speed of the blade are controlled according to the control instruction.

[0046] In some embodiments, in step S120, the specific process of controlling the state of the condenser and the rotational speed of the blades according to the control instruction includes: when the UAV is not in flight, if the control instruction is an instruction to turn on a preset cooling mode, then the state of the condenser is controlled to the expanded state and the rotational speed of the blades is controlled to the preset speed to start cooling the refrigerator.

[0047] When the system starts cooling, it first controls the paddle on the side not facing the refrigerator door to rotate. Figure 3 In the freezer, there are two paddles on the top, left and right sides, and bottom of the freezer. If the freezer door is located at the bottom of the freezer, after the refrigeration starts, only the four paddles on the top and left and right sides of the freezer are controlled to rotate. The paddles on one side of the freezer door are not turned on to prevent people from being accidentally injured by the paddles if there are people in front of the freezer door. When the paddles are turned on, the condenser under the turned-on paddles is controlled to unfold to ensure the condensation effect.

[0048] When the propellers start to rotate, the speed of the propellers is the preset speed, which is a relatively low speed to ensure that condensation is carried out normally while preventing the drone from tipping over or taking off. Then the speed of the propellers is adjusted in real time according to the requirements of the cooling mode so that the heat dissipation efficiency of the condenser meets the current cooling conditions. The adjusted speed of the propellers needs to ensure that the drone does not tip over or take off.

[0049] During the process of cooling the freezer, if a command for the drone to take off is received, all the propeller blades are controlled to start rotating, and the speed of the propeller blades is controlled according to the requirements of the flight mode.

[0050] In some embodiments, the refrigerator further includes a refrigerator door. The method further includes: obtaining the weight of items in the refrigerator before starting to refrigerate the refrigerator; determining whether the weight of the items in the refrigerator is greater than a preset weight and whether the refrigerator door is closed; if the weight of the items in the refrigerator is greater than the preset weight, issuing a prompt message that the items are overweight; if the weight of the items in the refrigerator is less than or equal to the preset weight and the refrigerator door is closed, starting to refrigerate the refrigerator; if the weight of the items in the refrigerator is less than or equal to the preset weight and the refrigerator door is open, issuing a prompt message that the refrigerator door is not closed and not refrigerating the refrigerator.

[0051] When the drone is not taking off and the refrigerator is not cooling, the condenser is in the retracted state and the propeller speed is 0. If the refrigerator is to start cooling, the power of the drone refrigerator system must be turned on manually, the refrigerator enters standby mode, the refrigerator door is opened and the items are put in. Since the drone has a maximum load limit for flight, when putting items in, the pressure sensor at the bottom of the refrigerator tank detects the weight of the items in real time and determines whether the weight of the items exceeds the maximum load. When the weight of the items exceeds the maximum load, a prompt message is issued to remind the user to take out some items to ensure the normal flight of the drone.

[0052] When the weight of the item meets the maximum load limit, it will further determine whether the refrigerator door is closed. If the refrigerator door is not closed, a prompt message will be issued, and the system will not start refrigeration to prevent accidental injury caused by the rotation of the propeller. Refrigeration will start when the door is closed.

[0053] Figure 8FIG. 1 is a flow chart of the refrigeration principle of the drone refrigerator system of the present invention. Figure 8 As shown, the method includes:

[0054] Step 1, turn on the power, the refrigerator enters the standby mode, and when the items are placed in the refrigerator, detect whether the items in the refrigerator are overweight. If the items are overweight, an overload alarm is issued and step 2 is executed; if the items are not overweight, step 2 is directly executed.

[0055] Step 2, check whether the refrigerator door is closed. If the refrigerator door is not closed, the refrigeration is not turned on and the refrigerator continues to standby; if the refrigerator is closed, go to step 3.

[0056] Step 3, determine whether the system has received a command to turn on refrigeration or a command to turn on flight mode. If the system receives a command to turn on refrigeration, the drive motor in front of the refrigerant door is turned off, and other drive motors except the one in front of the refrigerator door are turned on, and the system starts cooling; if the system receives a command to turn on flight mode, the refrigerator enters standby mode and the drone starts to take off; if the system does not receive a command to turn on refrigeration or a command to turn on flight mode, all motors are turned off and the refrigerator continues to standby.

[0057] In some embodiments, in step S120, the specific process of controlling the state of the condenser and the rotational speed of the blade according to the control instruction also includes: when the UAV is in a flight state, if the control instruction is an instruction to turn on a preset speed limit function, obtaining the current temperature of the refrigerator; determining the target rotational speed of the blade according to the current temperature of the refrigerator from the corresponding relationship between the preset temperature of the refrigerator and the rotational speed of the blade; and controlling the rotational speed of the blade to the target speed.

[0058] In flight mode, users can set speed limits and temperature limits. The speed limit determines the required heat dissipation efficiency of the condenser based on the temperature of the refrigerator, and further determines the rotation speed of the blades. For example, if the temperature of the refrigerator is higher than the set temperature, the condenser requires a higher heat dissipation efficiency, then the rotation speed of the blades is higher, and the speed of the drone is faster. That is, under the speed limit, the flight speed of the drone is determined by the temperature of the refrigerator and is not controlled by the user. Specifically, the system pre-stores the correspondence between the temperature of the refrigerator and the rotation speed of the blades. After the speed limit is turned on, the system matches the blade speed corresponding to the current refrigerator temperature from the correspondence, and controls the rotation of the blades according to the matched blade speed, so that the system can more accurately adjust the temperature in the refrigerator and improve the accuracy and stability of temperature control.

[0059] In some embodiments, the control instruction includes a set speed of the blade. In step S120, the specific process of controlling the state of the condenser and the speed of the blade according to the control instruction further includes: when the drone is in a flight state, if the control instruction is an instruction to turn off a preset speed limit function, controlling the speed of the blade to the set speed.

[0060] When the drone is flying, users can choose to turn off the speed limit. After turning off the speed limit, the user can manually control the flight speed of the drone, thereby improving the flexibility of drone operation, better responding to emergencies, and preventing damage to the drone and refrigerator. At the same time, it can also improve the accuracy of drone control and allow the drone to hover at a specified location.

[0061] In some embodiments, in step S120, the specific process of controlling the state of the condenser and the rotational speed of the blades according to the control instruction also includes: if the control instruction is an instruction to turn on a preset temperature limit function, the state of the condenser is controlled to be the deployed state; when the preset speed limit function is turned off, if the control instruction is an instruction to turn off the preset temperature limit function, the state of the condenser is controlled to be the retracted state.

[0062] The temperature limit is used to control the temperature in the refrigerator to reach the target temperature. When the temperature limit is turned on, the condenser expands, improving the condensation efficiency and cooling effect, so that the temperature in the refrigerator reaches the target temperature. When the temperature limit is turned off, the condenser is retracted. At this time, the high-temperature refrigerant only returns to the refrigerator along the pipe on the bracket to the blade position. Although air convection during flight will play a role in condensation and heat dissipation, the cooling capacity of the system is reduced.

[0063] Since the condenser will interfere with the normal flow of air during the flight of the drone after it is deployed, affecting the working efficiency of the blades and reducing the flight speed of the drone, when the temperature limit is turned off, the condenser is retracted, which improves the working efficiency of the blades and allows the drone to fly faster.

[0064] Fig. 9 FIG. 1 is a flow chart of a control method of the drone refrigerator system in flight mode of the present invention. Fig. 9 As shown, the method includes:

[0065] Step 11, turn on the power, unfold the condenser, and the refrigerator enters the standby state. When the system receives the flight mode, it turns on all drive motors and enters the flight mode.

[0066] Step 12, and determine whether to lift the speed limit. If not, the flight speed of the drone is limited according to the temperature of the refrigerator according to the pre-matched speed limit table; if the speed limit is lifted, step 13 is executed.

[0067] Step 13, determining whether to release the temperature limit. If the temperature limit is released, the condenser is folded; if the temperature limit is not released, the condenser is kept unfolded.

[0068] Using the technical solution of this embodiment, the drone refrigerator system includes a refrigerator and a drone. The condenser of the refrigerator is located in the downwash direction of the drone's blades. The condenser has two states: an expanded state and a retracted state, and the heat dissipation efficiency in the expanded state is greater than that in the retracted state. When the system is cooling, the state of the condenser and the speed of the blades are controlled according to the control instructions input by the user. Thus, by utilizing the drone's blades to dissipate heat for the condenser, controlling the expansion or retraction of the condenser and the speed of the blades to adjust the condensation efficiency during cooling, the temperature in the refrigerator can be accurately controlled to avoid temperature fluctuations and improve the stability of temperature control.

[0069] According to an embodiment of the present invention, a control device for a drone refrigerator system corresponding to the control method for a drone refrigerator system is also provided. The drone refrigerator system comprises: a refrigerator, a drone; the drone is used to carry the refrigerator for flight; the drone comprises blades; the refrigerator comprises a condenser; the condenser is located in the downwash direction of the blades; the states of the condenser include a stowed state and an unfolded state; the heat dissipation efficiency of the condenser in the unfolded state is greater than the heat dissipation efficiency in the stowed state.

[0070] The structure of the drone refrigerator system is as follows Figure 3 As shown, it includes a refrigerator 1 and a drone. The drone includes: blades 2, motors 4, and brackets 5, and the number of blades, motors, and brackets corresponds to each other. The blades are driven by the motor, and each combination of blades and motors is connected to the refrigerator through the bracket.

[0071] The structure of the refrigerator 1 is as follows Figure 4 As shown, it includes a controller 11, a compressor 10, a power box 12, an evaporator 9, a condenser 3, a refrigerator door 7, and a display screen 8. The compressor 10, the evaporator 9, and the condenser 3 form a refrigeration circuit. In the refrigeration mode, the high-temperature and high-pressure refrigerant discharged by the compressor 10 is cooled to a low-temperature refrigerant by the condenser 3, and then the cold energy is dissipated into the chamber of the refrigerator at the evaporator 9. The controller 9 is used to control the drone and the refrigerator according to the user's operating instructions, and the display screen 8 is used to display the status of the refrigerator, such as the temperature inside the refrigerator. The refrigerator also includes components required to control the flight of the drone, such as a camera, an altitude radar, a GPS positioning device, and a landing gear.

[0072] The condenser of the refrigerator is set in the downwash direction of the drone's blades, and the refrigerant inlet and outlet pipes connected to the condenser are set on the bracket. The condenser can be unfolded and retracted in a fan-shaped rotation with the central axis of the blade fan. Figure 3The middle condenser is in fully expanded state. Figure 5 The condenser is in a fully retracted state. When the propeller blades rotate, the airflow formed by the rotation of the propeller blades passes through the condenser to dissipate heat for the condenser. When the condenser is unfolded, the contact area between the airflow and the condenser increases, and the heat dissipation efficiency of the condenser is higher; when the condenser is retracted, the contact area between the airflow and the condenser decreases, and the heat dissipation efficiency of the condenser is lower. Therefore, there is no need to set up a condensing fan for the condenser, and the propeller blades of the drone are used to dissipate heat for the condenser, which reduces the energy consumption of the system and extends the flight time of the drone.

[0073] Furthermore, the condenser rotates around the rotating body, and the rotating body is driven by a motor. Figure 6 As shown in FIG. 1 , a plurality of openings are provided on the side of the rotating body. The structure of the condenser is as follows: Figure 7 The condenser is composed of multiple radiator copper sheets. The radiator copper sheet has a protruding structure. After the protruding structure is embedded in the opening on the side of the rotating body, the radiator copper sheet can slide with the rotation of the rotating body. The protruding structure has magnetism, which allows the protruding structure to fit tightly with the rotating body. When the condenser needs to be unfolded, the rotating body rotates and drives the corresponding radiator copper sheet to slide; when the condenser needs to be folded, Figure 6 The baffle 6 on the left side pushes all the copper sheets to move to one side. When the copper sheets touch the bracket, the raised structure of the copper sheets is disconnected from the opening on the side of the rotating body, so that the heat dissipation copper sheets are concentrated on one side of the bracket to achieve the folding of the condenser. In the cooling mode, the heat of the high-temperature and high-pressure refrigerant is transferred to the cabinet body, the bracket, and the condenser composed of multiple groups of copper sheets located under the blades to achieve the condensation effect.

[0074] Optionally, the cabinet body, bracket, landing gear, etc. of the freezer are made of aviation-grade aluminum alloy, which reduces the overall weight while ensuring strength, and has good thermal conductivity to ensure that components such as the compressor, power supply, and controller will not overheat.

[0075] This solution uses a foldable condenser to significantly reduce the weight of the condensation system, and uses the airflow formed by the rotation of the drone blades to dissipate heat for the condenser, ensuring that a constant low temperature is maintained throughout the transportation process and avoiding the impact of temperature fluctuations on the quality of the goods. The system is suitable for long-distance transportation, especially for items that need to be kept at a low temperature for a long time, such as biological products, medicines, and fresh food. It can not only transport temperature-sensitive goods, but also special items that require a specific temperature range, expanding the application scope of drone transportation.

[0076] See also Figure 2 The control device of the drone refrigerator system may include: an acquisition unit 102 and a control unit 104.

[0077] The acquisition unit 102 is configured to acquire a control instruction input by a user.

[0078] The control unit 104 is configured to control the state of the condenser and the rotation speed of the blade according to the control instruction.

[0079] In some embodiments, the control unit 104 controls the state of the condenser and the rotation speed of the blade according to the control instruction, including: when the UAV is not in flight, if the control instruction is an instruction to turn on a preset cooling mode, then the state of the condenser is controlled to the expanded state and the rotation speed of the blade is controlled to the preset speed to start cooling the refrigerator.

[0080] When the system starts cooling, it first controls the paddle on the side not facing the refrigerator door to rotate. Figure 3 In the freezer, there are two paddles on the top, left and right sides, and bottom of the freezer. If the freezer door is located at the bottom of the freezer, after the refrigeration starts, only the four paddles on the top and left and right sides of the freezer are controlled to rotate. The paddles on one side of the freezer door are not turned on to prevent people from being accidentally injured by the paddles if there are people in front of the freezer door. When the paddles are turned on, the condenser under the turned-on paddles is controlled to unfold to ensure the condensation effect.

[0081] When the propellers start to rotate, the speed of the propellers is the preset speed, which is a relatively low speed to ensure that condensation is carried out normally while preventing the drone from tipping over or taking off. Then the speed of the propellers is adjusted in real time according to the requirements of the cooling mode so that the heat dissipation efficiency of the condenser meets the current cooling conditions. The adjusted speed of the propellers needs to ensure that the drone does not tip over or take off.

[0082] During the process of cooling the freezer, if a command for the drone to take off is received, all the propeller blades are controlled to start rotating, and the speed of the propeller blades is controlled according to the requirements of the flight mode.

[0083] In some embodiments, the refrigerator further includes a refrigerator door. The control unit 104 is further configured to: obtain the weight of the items in the refrigerator before starting to refrigerate the refrigerator; determine whether the weight of the items in the refrigerator is greater than a preset weight and whether the refrigerator door is closed; if the weight of the items in the refrigerator is greater than the preset weight, issue a prompt message that the items are overweight; if the weight of the items in the refrigerator is less than or equal to the preset weight and the refrigerator door is closed, start refrigerating the refrigerator; if the weight of the items in the refrigerator is less than or equal to the preset weight and the refrigerator door is open, issue a prompt message that the refrigerator door is not closed and do not refrigerate the refrigerator.

[0084] When the drone is not taking off and the refrigerator is not cooling, the condenser is in the retracted state and the propeller speed is 0. If the refrigerator is to start cooling, the power of the drone refrigerator system must be turned on manually, the refrigerator enters standby mode, the refrigerator door is opened and the items are put in. Since the drone has a maximum load limit for flight, when putting items in, the pressure sensor at the bottom of the refrigerator tank detects the weight of the items in real time and determines whether the weight of the items exceeds the maximum load. When the weight of the items exceeds the maximum load, a prompt message is issued to remind the user to take out some items to ensure the normal flight of the drone.

[0085] When the weight of the item meets the maximum load limit, it will further determine whether the refrigerator door is closed. If the refrigerator door is not closed, a prompt message will be issued, and the system will not start refrigeration to prevent accidental injury caused by the rotation of the propeller. Refrigeration will start when the door is closed.

[0086] Figure 8 FIG. 1 is a flow chart of the refrigeration principle of the drone refrigerator system of the present invention. Figure 8 As shown, the method includes:

[0087] Step 1, turn on the power, the refrigerator enters the standby mode, and when the items are placed in the refrigerator, detect whether the items in the refrigerator are overweight. If the items are overweight, an overload alarm is issued and step 2 is executed; if the items are not overweight, step 2 is directly executed.

[0088] Step 2, check whether the refrigerator door is closed. If the refrigerator door is not closed, the refrigeration is not turned on and the refrigerator continues to standby; if the refrigerator is closed, go to step 3.

[0089] Step 3, determine whether the system has received a command to turn on refrigeration or a command to turn on flight mode. If the system receives a command to turn on refrigeration, the drive motor in front of the refrigerant door is turned off, and other drive motors except the one in front of the refrigerator door are turned on, and the system starts cooling; if the system receives a command to turn on flight mode, the refrigerator enters standby mode and the drone starts to take off; if the system does not receive a command to turn on refrigeration or a command to turn on flight mode, all motors are turned off and the refrigerator continues to standby.

[0090] In some embodiments, the control unit 104 controls the state of the condenser and the rotation speed of the blade according to the control instruction, and further includes: when the UAV is in flight, if the control instruction is an instruction to turn on a preset speed limit function, obtaining the current temperature of the refrigerator; determining the target rotation speed of the blade according to the current temperature of the refrigerator from the corresponding relationship between the preset temperature of the refrigerator and the rotation speed of the blade; and controlling the rotation speed of the blade to be the target rotation speed.

[0091] In flight mode, users can set speed limits and temperature limits. The speed limit determines the required heat dissipation efficiency of the condenser based on the temperature of the refrigerator, and further determines the rotation speed of the blades. For example, if the temperature of the refrigerator is higher than the set temperature, the condenser requires a higher heat dissipation efficiency, then the rotation speed of the blades is higher, and the speed of the drone is faster. That is, under the speed limit, the flight speed of the drone is determined by the temperature of the refrigerator and is not controlled by the user. Specifically, the system pre-stores the correspondence between the temperature of the refrigerator and the rotation speed of the blades. After the speed limit is turned on, the system matches the blade speed corresponding to the current refrigerator temperature from the correspondence, and controls the rotation of the blades according to the matched blade speed, so that the system can more accurately adjust the temperature in the refrigerator and improve the accuracy and stability of temperature control.

[0092] In some embodiments, the control instruction includes a set speed of the blade. The specific process of the control unit 104 controlling the state of the condenser and the speed of the blade according to the control instruction further includes: when the drone is in a flight state, if the control instruction is an instruction to turn off a preset speed limit function, controlling the speed of the blade to the set speed.

[0093] When the drone is flying, users can choose to turn off the speed limit. After turning off the speed limit, the user can manually control the flight speed of the drone, thereby improving the flexibility of drone operation, better responding to emergencies, and preventing damage to the drone and refrigerator. At the same time, it can also improve the accuracy of drone control and allow the drone to hover at a specified location.

[0094] In some embodiments, the control unit 104 controls the state of the condenser and the speed of the blade according to the control instruction, and the specific process also includes: if the control instruction is an instruction to turn on a preset temperature limit function, the state of the condenser is controlled to be the deployed state; when the preset speed limit function is turned off, if the control instruction is an instruction to turn off the preset temperature limit function, the state of the condenser is controlled to be the retracted state.

[0095] The temperature limit is used to control the temperature in the refrigerator to reach the target temperature. When the temperature limit is turned on, the condenser expands, improving the condensation efficiency and cooling effect, so that the temperature in the refrigerator reaches the target temperature. When the temperature limit is turned off, the condenser is retracted. At this time, the high-temperature refrigerant only returns to the refrigerator along the pipe on the bracket to the blade position. Although air convection during flight will play a role in condensation and heat dissipation, the cooling capacity of the system is reduced.

[0096] Since the condenser will interfere with the normal flow of air during the flight of the drone after it is deployed, affecting the working efficiency of the blades and reducing the flight speed of the drone, when the temperature limit is turned off, the condenser is retracted, which improves the working efficiency of the blades and allows the drone to fly faster.

[0097] Fig. 9 FIG. 1 is a flow chart of a control method of the drone refrigerator system in flight mode of the present invention. Fig. 9 As shown, the method includes:

[0098] Step 11, turn on the power, unfold the condenser, and the refrigerator enters the standby state. When the system receives the flight mode, it turns on all drive motors and enters the flight mode.

[0099] Step 12, and determine whether to lift the speed limit. If not, the flight speed of the drone is limited according to the temperature of the refrigerator according to the pre-matched speed limit table; if the speed limit is lifted, step 13 is executed.

[0100] Step 13, determining whether to release the temperature limit. If the temperature limit is released, the condenser is folded; if the temperature limit is not released, the condenser is kept unfolded.

[0101] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0102] By adopting the technical solution of the present invention, the drone refrigerator system includes a refrigerator and a drone. The condenser of the refrigerator is located in the downwash direction of the drone's blades. The condenser has two states: an expanded state and a retracted state, and the heat dissipation efficiency in the expanded state is greater than that in the retracted state. When the system is cooling, the state of the condenser and the rotation speed of the blades are controlled according to the control instructions input by the user. Thus, by utilizing the drone's blades to dissipate heat for the condenser, controlling the expansion or retraction of the condenser and the rotation speed of the blades to adjust the condensation efficiency during cooling, the temperature in the refrigerator can be accurately controlled, temperature fluctuations can be avoided, and the stability of temperature control can be improved.

[0103] According to an embodiment of the present invention, a drone refrigerator system corresponding to the control device of the drone refrigerator system is also provided. The drone refrigerator system may include: the control device of the drone refrigerator system described above.

[0104] Since the processing and functions implemented by the drone refrigerator system of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0105] By adopting the technical solution of the present invention, the drone refrigerator system includes a refrigerator and a drone. The condenser of the refrigerator is located in the downwash direction of the drone's blades. The condenser has two states: an expanded state and a retracted state, and the heat dissipation efficiency in the expanded state is greater than that in the retracted state. When the system is cooling, the state of the condenser and the rotation speed of the blades are controlled according to the control instructions input by the user. Thus, by utilizing the drone's blades to dissipate heat for the condenser, controlling the expansion or retraction of the condenser and the rotation speed of the blades to adjust the condensation efficiency during cooling, the temperature in the refrigerator can be accurately controlled, temperature fluctuations can be avoided, and the stability of temperature control can be improved.

[0106] According to an embodiment of the present invention, a storage medium corresponding to a control method of a drone refrigerator system is also provided, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the control method of the drone refrigerator system described above.

[0107] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0108] By adopting the technical solution of the present invention, the drone refrigerator system includes a refrigerator and a drone. The condenser of the refrigerator is located in the downwash direction of the drone's blades. The condenser has two states: an expanded state and a retracted state, and the heat dissipation efficiency in the expanded state is greater than that in the retracted state. When the system is cooling, the state of the condenser and the rotation speed of the blades are controlled according to the control instructions input by the user. Thus, by utilizing the drone's blades to dissipate heat for the condenser, controlling the expansion or retraction of the condenser and the rotation speed of the blades to adjust the condensation efficiency during cooling, the temperature in the refrigerator can be accurately controlled, temperature fluctuations can be avoided, and the stability of temperature control can be improved.

[0109] According to an embodiment of the present invention, a computer program product corresponding to the control method of the drone refrigerator system is also provided, and the computer program product includes a computer program, and when the computer program product is processed and executed, the steps of the control method of the drone refrigerator system are implemented.

[0110] Since the processing and functions implemented by the computer program product of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0111] By adopting the technical solution of the present invention, the drone refrigerator system includes a refrigerator and a drone. The condenser of the refrigerator is located in the downwash direction of the drone's blades. The condenser has two states: an expanded state and a retracted state, and the heat dissipation efficiency in the expanded state is greater than that in the retracted state. When the system is cooling, the state of the condenser and the rotation speed of the blades are controlled according to the control instructions input by the user. Thus, by utilizing the drone's blades to dissipate heat for the condenser, controlling the expansion or retraction of the condenser and the rotation speed of the blades to adjust the condensation efficiency during cooling, the temperature in the refrigerator can be accurately controlled, temperature fluctuations can be avoided, and the stability of temperature control can be improved.

[0112] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0113] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A control method for a drone refrigerator system, characterized in that: The drone refrigerator system comprises: a refrigerator, a drone; the drone is used to carry the refrigerator for flight; the drone comprises blades; the refrigerator comprises a condenser; the condenser is located in the downwash direction of the blades; the states of the condenser include a stowed state and an unfolded state; the heat dissipation efficiency of the condenser in the unfolded state is greater than the heat dissipation efficiency in the stowed state; The method comprises: Obtain control instructions input by the user; The state of the condenser and the rotation speed of the blade are controlled according to the control instruction.

2. The control method of the drone refrigerator system according to claim 1, characterized in that: Controlling the state of the condenser and the rotation speed of the blade according to the control instruction includes: When the drone is not in flight, if the control instruction is an instruction to start a preset cooling mode, the state of the condenser is controlled to be the unfolded state and the rotation speed of the blade is controlled to be the preset rotation speed to start cooling the refrigerator.

3. The control method of the drone refrigerator system according to claim 2, characterized in that: The refrigerator further comprises a refrigerator door; and the method further comprises: Before the refrigerator starts to be refrigerated, obtaining the weight of the items in the refrigerator; Determine whether the weight of the items in the refrigerator is greater than a preset weight and whether the refrigerator door is closed; If the weight of the items in the refrigerator is greater than the preset weight, a prompt message indicating that the items are overweight is issued; If the weight of the items in the refrigerator is less than or equal to the preset weight, the refrigerator door is closed, and the refrigerator starts to be refrigerated; If the weight of the items in the refrigerator is less than or equal to the preset weight and the refrigerator door is open, a prompt message indicating that the refrigerator door is not closed is issued, and the refrigerator is not refrigerated.

4. The control method of the drone refrigerator system according to claim 1, characterized in that: Controlling the state of the condenser and the speed of the blade according to the control instruction also includes: When the drone is in flight, if the control instruction is an instruction to turn on a preset speed limit function, obtaining the current temperature of the refrigerator; Determining a target rotation speed of the propeller according to the current temperature of the refrigerator from a preset correspondence between the temperature of the refrigerator and the rotation speed of the propeller; The rotation speed of the blade is controlled to be the target rotation speed.

5. The control method of the drone refrigerator system according to claim 4, characterized in that: The control instruction includes a set rotation speed of the blade; Controlling the state of the condenser and the speed of the blade according to the control instruction also includes: When the drone is in flight, if the control instruction is an instruction to turn off a preset speed limit function, the rotation speed of the blades is controlled to be the set rotation speed.

6. The control method of the drone refrigerator system according to claim 5, characterized in that: Controlling the state of the condenser and the speed of the blade according to the control instruction also includes: If the control instruction is an instruction to start a preset temperature limit function, the state of the condenser is controlled to be the deployed state; In the case where the preset speed limit function is turned off, if the control instruction is an instruction to turn off the preset temperature limit function, the state of the condenser is controlled to be the retracted state.

7. A control device for a drone refrigerator system, characterized in that: The drone refrigerator system comprises: a refrigerator, a drone; the drone is used to carry the refrigerator for flight; the drone comprises blades; the refrigerator comprises a condenser; the condenser is located in the downwash direction of the blades; the states of the condenser include a stowed state and an unfolded state; the heat dissipation efficiency of the condenser in the unfolded state is greater than the heat dissipation efficiency in the stowed state; The device comprises: An acquisition unit, configured to acquire a control instruction input by a user; A control unit is configured to control the state of the condenser and the rotation speed of the blade according to the control instruction.

8. A drone refrigerator system, characterized in that: include: The control device of the drone refrigerator system as claimed in claim 7.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the control method of the drone refrigerator system according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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