Airborne communication device, heat dissipation control method thereof and storage medium

Abstract

The application discloses an airborne communication device, a heat dissipation control method thereof and a storage medium. The airborne communication device comprises a first shell and a second shell arranged oppositely, a circuit substrate, a control device and a heat dissipation fan. A containing space is formed between the first shell and the second shell. An installation groove is formed on the outer surface of the first shell, and the first shell is provided with heat dissipation fins. The heat dissipation fan is arranged at the installation groove and located outside the containing space. The control device is arranged on the circuit substrate fixed in the containing space. When the control device works, the heat generated by the control device is conducted to the first shell and taken away by the airflow driven by the heat dissipation fan. In this way, the airflow driven by the heat dissipation fan can enhance the heat dissipation performance without forming an air inlet and an air outlet on the shell of the airborne communication device, and the waterproof and dustproof performance requirements of the containing space can be met, the application range of the airborne communication device is widened, and the airborne communication demand of the aircraft such as unmanned aerial vehicle for field operation can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of airborne communication, in particular to an airborne communication device and a heat dissipation control method thereof and a storage medium. BACKGROUND

[0002] In order to realize communication liaison on an aircraft, an airborne communication device needs to be arranged on the aircraft. In the related art, the airborne communication device is mainly designed with a natural cooling heat dissipation system, that is, heat inside the device is transferred to the shell through thermal radiation and heat conduction, and then the heat is dissipated to the surrounding air environment through radiation and convection, which has low heat dissipation efficiency. When the device generates a large amount of heat and must be forced to convect to dissipate heat, a fan needs to be added to improve the heat dissipation efficiency, so as to meet the temperature range requirement of the device during operation, so that the device does not overheat and malfunction.

[0003] When a fan is used for heat dissipation, a common design is to contact the heat sink with the heat source body, conduct heat to the heat sink, and then the heat sink conducts heat to the surrounding air. Generally, at least two air vents (i.e., an air inlet and an air outlet) are opened on the shell, and the fan is fixed in the shell, and through certain air path design, the air in the shell is forced to form convection, thereby increasing the air flow rate and increasing the heat dissipation effect.

[0004] However, when the above fan heat dissipation scheme is applied to the airborne communication device of the aircraft (for example, a drone), since the air inlet and the air outlet need to be opened on the shell, it is not conducive to the design requirements of waterproofing, dustproofing, etc., especially when the airborne communication device is placed on the top of the drone and follows the drone for field operation, the waterproof performance requirement is difficult to meet, which limits the application scenarios. SUMMARY

[0005] Therefore, the embodiments of the present application provide an airborne communication device and a heat dissipation control method thereof and a storage medium, which aim to effectively improve the heat dissipation effect of the airborne communication device while taking into account the waterproof performance.

[0006] The technical scheme of the embodiments of the present application is as follows:

[0007] In a first aspect, the embodiments of the present application provide an airborne communication device, comprising:

[0008] The first shell and the second shell are oppositely arranged, a containing space is formed between the first shell and the second shell, a mounting groove is opened on the outer surface of the first shell, and the first shell has a heat dissipation fin;

[0009] A circuit substrate is fixed in the containing space;

[0010] A control device is arranged on the circuit substrate;

[0011] A heat dissipation fan is arranged at the mounting slot and outside the accommodating space, and is used to drive airflow to carry away heat conducted to the first shell.

[0012] In the above scheme, the airborne communication device further comprises:

[0013] A communication antenna is arranged on the circuit substrate, and an opening is formed in a region of the first shell corresponding to the communication antenna and communicating with the accommodating space.

[0014] A waterproof shield is arranged at the opening and used to seal the opening.

[0015] In the above scheme, the first shell is made of metal material, and the waterproof shield is made of non-metal material.

[0016] In the above scheme, the heat dissipation fins are symmetrically arranged around the mounting slot.

[0017] In the above scheme, the control device comprises a main processor chip arranged towards the first shell, and the airborne communication device further comprises:

[0018] A thermal interface material layer is arranged on a surface of the main processor chip and in contact with an inner wall surface of the first shell.

[0019] In the above scheme, the airborne communication device further comprises:

[0020] A fan cover plate is arranged on the first shell and covers the heat dissipation fan in the mounting slot, and an airflow inlet is formed in the fan cover plate.

[0021] In the above scheme, a center point of the opening is opposite to a center point of the communication antenna, and an area of the opening is greater than an area of the communication antenna projected onto the first shell.

[0022] In the above scheme, the waterproof shield is fixed to the inner wall surface of the first shell and has a wedge shape protruding towards the opening, the opening also communicates with the mounting slot, and a through hole is formed in the waterproof shield for the conductive wire of the heat dissipation fan to access the circuit substrate.

[0023] In the above scheme, the control device comprises:

[0024] A fan control circuit is electrically connected with the conductive wire of the heat dissipation fan and used to control an operating state of the heat dissipation fan.

[0025] In the above scheme, the airborne communication device further comprises:

[0026] a temperature sensor configured to detect a temperature value in the accommodation space and transmit the temperature value to the control device.

[0027] In the foregoing solution, the control device is configured to control a running state of the heat dissipation fan based on a to-be-run task.

[0028] In the foregoing solution, the control device is configured to control a running state of the heat dissipation fan based on a to-be-run task.

[0029] determine a target time point for enhancing heat dissipation performance based on at least one of a running duration, a heat generation amount and a temperature rise value of the to-be-run task, the target time point being earlier than a starting time point of the to-be-run task;

[0030] control the heat dissipation fan to start and run at a target rotating speed at the target time point.

[0031] In the foregoing solution, the control device is configured to detect a dust accumulation state of the heat dissipation fan based on heat dissipation time consumptions of at least one test task.

[0032] In the foregoing solution, the control device is configured to detect a dust accumulation state of the heat dissipation fan based on heat dissipation time consumptions of at least one test task.

[0033] obtain heat dissipation time consumptions of running at least one test task, wherein each test task has a preconfigured heat dissipation reference parameter for controlling the heat dissipation fan to run and a corresponding heat dissipation reference duration;

[0034] detect the dust accumulation state of the heat dissipation fan based on the obtained heat dissipation time consumptions and the heat dissipation reference durations.

[0035] In the foregoing solution, the control device is configured to detect a dust accumulation state of the heat dissipation fan based on heat dissipation time consumptions of at least one test task.

[0036] calculate a ratio of a difference between the heat dissipation time consumptions of the at least one test task and the heat dissipation reference durations of the at least one test task divided by the heat dissipation reference durations of the at least one test task;

[0037] generate early warning information indicating the dust accumulation state of the heat dissipation fan based on a comparison result of the ratio and at least one threshold value.

[0038] In a second aspect, an embodiment of the present application provides a heat dissipation control method, applied to an airborne communication device including a heat dissipation fan and a control device, and the method includes the following steps.

[0039] controlling a running state of the heat dissipation fan based on a to-be-run task.

[0040] In the foregoing solution, the control device is configured to control a running state of the heat dissipation fan based on a to-be-run task.

[0041] determine a target time for enhancing the heat dissipation performance based on at least one of a running time, a heat generation amount and a temperature rise value of the to-be-run task, the target time being earlier than a starting time of the to-be-run task;

[0042] control the heat dissipation fan to start and run at a target rotating speed at the target time.

[0043] In the above solution, the method further comprises:

[0044] detect the dust accumulation state of the heat dissipation fan based on heat dissipation time consumption of at least one test task.

[0045] In the above solution, the detecting the dust accumulation state of the heat dissipation fan based on the heat dissipation time consumption of the at least one test task comprises:

[0046] obtain heat dissipation time consumption of running at least one test task, wherein each test task has a pre-configured heat dissipation reference parameter for controlling the heat dissipation fan to run and a corresponding heat dissipation reference time length;

[0047] detect the dust accumulation state of the heat dissipation fan based on the obtained heat dissipation time consumption and the heat dissipation reference time length.

[0048] In the above solution, the detecting the dust accumulation state of the heat dissipation fan based on the obtained heat dissipation time consumption and the heat dissipation reference time length comprises:

[0049] calculate a ratio of a difference between the heat dissipation time consumption of the at least one test task and the heat dissipation reference time length of the at least one test task divided by the heat dissipation reference time length of the at least one test task;

[0050] generate pre-warning information indicating the dust accumulation state of the heat dissipation fan based on a comparison result of the ratio and at least one threshold value.

[0051] In a third aspect, an embodiment of the present application provides a storage medium, and the storage medium stores a computer program. When the computer program is executed by a processor, steps of the method in the second aspect of the present application are implemented.

[0052] The technical scheme provided by the embodiment of the application forms an accommodating space between the first shell and the second shell arranged oppositely, the outer surface of the first shell is provided with a mounting groove, and the first shell has a heat dissipation fin; a heat dissipation fan is arranged at the mounting groove and located outside the accommodating space; a control device is arranged on a circuit substrate fixed in the accommodating space, and the heat generated by the control device during operation is conducted to the first shell and taken away by the airflow driven by the heat dissipation fan. In this way, the airflow driven by the heat dissipation fan can be used to enhance the heat dissipation performance without opening the air inlet and the air outlet on the shell of the airborne communication device, and the waterproof and dustproof performance requirements of the accommodating space can be met, thereby widening the application range of the airborne communication device and meeting the airborne communication requirements of the aircraft for field operation such as unmanned aerial vehicles. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 FIG. 1 is a partial cross-sectional view of an airborne communication device according to an embodiment of the application, wherein Figure 1 The second shell of the airborne communication device is omitted;

[0054] Figure 2 FIG. 2 is a perspective view of the airborne communication device according to the embodiment of the application;

[0055] Figure 3 FIG. 3 is another perspective view of the airborne communication device according to the embodiment of the application, wherein Figure 3 The fan cover plate is omitted;

[0056] Figure 4 FIG. 4 is a planar view of the airborne communication device according to the embodiment of the application;

[0057] Figure 5 FIG. 5 is another planar view of the airborne communication device according to the embodiment of the application;

[0058] Figure 6 FIG. 6 is a schematic view of a typical temperature curve based on a negative feedback system in the related art;

[0059] Figure 7 FIG. 7 is a task queue diagram of the airborne communication device according to the embodiment of the application;

[0060] Figure 8 FIG. 8 is a schematic view of a temperature curve of the working process of the airborne communication device according to the embodiment of the application;

[0061] Figure 9 FIG. 9 is a schematic view of preset heat dissipation reference parameters and heat dissipation reference time lengths of the airborne communication device according to the embodiment of the application;

[0062] Figure 10 FIG. 10 is a schematic view of the airborne communication device according to the embodiment of the application acquiring heat dissipation time consumption based on a test task.

[0063] REFERENCE SIGNS

[0064] 1. first housing; 101, mounting slot; 102, heat dissipation fin; 103, opening; 2, second housing;

[0065] 3. circuit substrate; 41, main processor chip; 42, fan control circuit;

[0066] 5. heat dissipation fan; 501, conductive wire;

[0067] 6. communication antenna;

[0068] 7. waterproof shield;

[0069] 8. thermal interface material layer;

[0070] 9. fan cover plate; 901, air inlet;

[0071] 10. temperature sensor. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be described in further detail below with reference to the drawings, and the described embodiments should not be regarded as limiting the present application, all other embodiments obtained by those skilled in the art without making creative labor shall fall within the scope of protection of the present application.

[0073] In the description of the present application, "some embodiments" are described, which describe a subset of all possible embodiments, but it can be understood that "some embodiments" can be the same subset or different subset of all possible embodiments, and can be combined with each other without conflict.

[0074] In the description of the present application, the terms "first, second" and the like are merely to distinguish similar objects, and do not represent a specific order of the objects. It can be understood that "first, second" and the like can be interchanged in a specific order or sequence as allowed, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. Unless otherwise specified, the meaning of "a plurality of" is at least two.

[0075] In the description of the present application, it is understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0076] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0077] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0078] As shown in Figures 1 to 5 The embodiment of the present application provides an airborne communication device, which comprises: a first shell 1 and a second shell 2 arranged oppositely, a circuit board 3, a control device and a cooling fan 5. Wherein, the first shell 1 and the second shell 2 form a containing space, the outer surface of the first shell 1 is provided with a mounting groove 101 and the first shell 1 has a heat dissipation fin 102. The circuit board 3 is fixed in the containing space. The control device is arranged on the circuit board 3. The cooling fan 5 is arranged at the mounting groove 101 and located outside the containing space.

[0079] It can be understood that, in the running process of the airborne communication device of the embodiment of the present application, the heat generated by the control device can be conducted to the first shell 1, and the heat conducted to the first shell 1 can be taken away by the airflow driven by the cooling fan 5, that is, the cooling fan 5 is used to drive the airflow to take away the heat conducted to the first shell 1. In this way, the airflow driven by the cooling fan 5 can enhance the heat dissipation performance without opening the air inlet and air outlet on the shell of the airborne communication device, and can meet the waterproof, dustproof and other performance requirements of the containing space, thereby widening the application range of the airborne communication device and meeting the airborne communication requirements of the aircraft for field operation such as unmanned aerial vehicle.

[0080] Exemplarily, the first shell 1 can be an upper cover body of the airborne communication device, and the second shell 2 can be a lower cover body of the airborne communication device. In this way, the heat dissipation fan 5 is arranged on the upper cover body, and is matched with the heat dissipation fins 102 of the upper cover body to realize rapid heat dissipation. In other examples, the first shell 1 can be a lower cover body of the airborne communication device, and the second shell 2 can be an upper cover body of the airborne communication device. In this way, the heat dissipation fan 5 is arranged on the lower cover body, and is matched with the heat dissipation fins 102 of the lower cover body to realize rapid heat dissipation.

[0081] It should be noted that the heat dissipation fins 102 can be integrally formed on the first shell 1, or the heat dissipation fins 102 can be separately formed and arranged on the outside of the first shell 1, and the embodiments of the present application do not limit this. The heat dissipation fins 102 can form a heat dissipation channel for rapid heat dissipation, thereby enhancing the heat dissipation efficiency. Exemplarily, as shown in FIG. 1, the heat dissipation fins 102 can be integrally formed around the mounting groove 101 on the top center of the first shell 1, so that the heat dissipation fan 5 arranged at the mounting groove 101 can drive air flow, and the heat conducted to the first shell 1 can be rapidly dissipated through the heat dissipation fins 102 around. Figure 3

[0082] Exemplarily, the first shell 1 and the second shell 2 can be fixedly connected, for example, can be fixedly connected by fasteners or clamped and connected, and the embodiments of the present application do not limit this.

[0083] It should be noted that the circuit board 3 is a PCB (Printed Circuit Board) for carrying electronic components. The control device arranged on the PCB can at least realize functions related to airborne communication. Exemplarily, the control device can include a main processor chip 41 and a fan control circuit 42. The main processor chip 41 can include a CPU (Central Processing Unit) and a GPU (Graphics Processing Unit), which are main heat generating components in the accommodation space, and support image data processing, data processing related to airborne communication, and other data processing for control, such as inspection. The fan control circuit 42 can realize adjustment and control of the operating state of the heat dissipation fan.

[0084] Exemplarily, the circuit board 3 can also be provided with a communication circuit for debugging the airborne communication device and / or for remote communication between the airborne communication device and the control station. For example, the circuit board 3 can be provided with a WIFI antenna for online debugging, and the circuit board 3 can also be provided with a 5G communication module for remote communication with the control station.

[0085] ​Exemplarily, in order to enhance the heat dissipation performance of the shell, the first shell 1 can be made of metal material. In other examples, the first shell 1 and the second shell 2 can also be made of metal material.

[0086] Exemplarily, the heat dissipation fins 102 are symmetrically arranged around the mounting groove 101, which can effectively balance the heat dissipation performance.

[0087] In some embodiments, the airborne communication device further comprises a communication antenna 6 and a waterproof shield 7, wherein the communication antenna 6 is arranged on the circuit substrate 3, and the first shell 1 is provided with an opening 103 corresponding to the communication antenna 6 and communicating with the accommodating space; the waterproof shield 7 is arranged at the opening 103 to seal the opening 103; wherein the first shell 1 is made of metal material, and the waterproof shield 7 is made of non-metal material.

[0088] Here, the communication antenna 6 can be a WIFI antenna or a Bluetooth antenna used for configuring and debugging parameters of the airborne communication device. In actual application, in order to avoid the circuit on the circuit substrate 3 from being interfered by external electromagnetic interference, the accommodating space formed by the first shell 1 and the second shell 2 can be electromagnetically shielded by the first shell 1 and the second shell 2 made of metal material, however, the communication antenna 6 arranged on the circuit substrate 3 cannot work normally due to the above electromagnetic shielding. Based on this, the first shell 1 is provided with an opening 103 corresponding to the communication antenna 6 and communicating with the accommodating space, and the waterproof shield 7 made of non-metal material is arranged at the opening 103, so that the normal work of the communication antenna 6 can be ensured, and the waterproof performance requirement inside the accommodating space can also be met.

[0089] Exemplarily, as shown in Figure 1 and Figure 4 , the area of the opening 103 is larger than the area of the communication antenna 6 projected onto the first shell 1. Preferably, the center point of the opening 103 is opposite to the center point of the communication antenna 6.

[0090] In an application example, it is assumed that the length of the orthographic projection of the communication antenna 6 on the first shell 1 is Wl, and the width of the orthographic projection is Ww; when the opening 103 is slotted, the center point of the communication antenna 6 is vertically aligned with the center point of the opening 103; the length Cl of the opening 103 is greater than or equal to Wl+10mm, and the width Cw of the opening 103 should be greater than Ww.

[0091] Exemplarily, the waterproof shield 7 is fixed to the inner wall surface of the first shell 1 and has a wedge shape protruding towards the opening 103.

[0092] In an application example, the waterproof shield 7 is made of a non-metal insulating soft material, in a "convex" wedge-shaped structure, which can be installed by screw fastening from below the first shell 1, to close the space of the opening 103, and then waterproof sealant is applied to the gap around the combination of the waterproof shield 7 and the first shell 1, to achieve the waterproof sealing of the above-mentioned combination.

[0093] Exemplarily, as shown in Figure 1 , the opening 103 can also communicate with the installation groove 101, and correspondingly, a through hole is formed on the waterproof shield 7 for the conductive wire 501 of the cooling fan 5 to access to the circuit board 3, so that the containing space can be communicated with the installation groove 101 by the opening 103, avoiding the complete shielding of the communication antenna 6 by the shell of metal material, meeting the normal working requirements of the communication antenna 6, and the conductive wire 501 of the cooling fan 5 can be introduced to the circuit board 3 through the waterproof shield 7 by using the opening 103, so that the wiring is hidden and the structure is compact.

[0094] Exemplarily, as shown in Figure 1 and Figure 5 , the control device comprises a main processor chip 41, which is arranged towards the first shell 1, and the airborne communication equipment further comprises a thermal interface material layer 8, which is arranged on the surface of the main processor chip 41 and in contact with the inner wall of the first shell 1.

[0095] Here, the thermal interface material layer 8 is made of thermal interface material (TIM), for example, can be made of thermal grease, thermal gel, thermal conductive adhesive and the like. The main processor chip 41 is installed in contact with the inner wall of the first shell 1 through the thermal interface material layer 8, realizing conduction cooling, which can effectively reduce the contact thermal resistance and improve the cooling performance.

[0096] Exemplarily, as shown in Figure 2 , the airborne communication equipment can further comprise a fan cover plate 9, which is arranged on the first shell 1 and covers the cooling fan 5 in the installation groove 101, and the fan cover plate 9 is provided with an air inlet 901.

[0097] It can be understood that the fan cover plate 9 can isolate the cooling fan 5 from the outside, so as to effectively prevent the user from directly touching the cooling fan 5. The air inlet 901 formed on the fan cover plate 9 can be multiple, for example, can be multiple arc-shaped inlets.

[0098] Exemplarily, the control device of the airborne communication device comprises: a fan control circuit 42, which is electrically connected with the conductive wire 501 of the heat dissipation fan 5, and is used for controlling the operating state of the heat dissipation fan 5.

[0099] When the main processor chip 41 works and generates heat, the heat can be conducted to the first shell 1 through the thermal interface material layer 8, and the heat is conducted to the air around the heat dissipation fins 102 by the first shell 1, and the heat dissipation fan 5 can be operated under the control of the fan control circuit 42 to generate a forced air flow, which sucks cold air from the top of the fan cover plate 9, and at the same time carries away hot air from the channel formed by the heat dissipation fins 102, thereby achieving active heat dissipation.

[0100] Exemplarily, the airborne communication device further comprises: a temperature sensor 10, which is used for detecting the temperature value in the accommodation space and delivering the temperature value to the control device.

[0101] Exemplarily, the temperature sensor 10 can be multiple, such as Figure 1 As shown, the temperature sensor 10 arranged on the circuit board 3 is placed in a certain number close to the main processor chip 41 and close to the edge of the long side of the circuit board 3, so that the temperature values at multiple places in the accommodation space can be detected, which is beneficial to the control device to adjust the operating state of the heat dissipation fan 5 based on the heat dissipation state of the accommodation space.

[0102] From the above description, it can be known that the airborne communication device of the embodiment of the present application realizes effective guarantee of the heat dissipation performance of the airborne communication device under the premise of meeting the waterproof and dustproof performance based on the improvement of the shell structure and the externalization of the heat dissipation fan 5 outside the accommodation space; in addition, based on the opening 103 on the first shell 1 and the waterproof shielding piece 7, the radio frequency communication performance of the communication antenna 6 can be met under the premise of considering the waterproof performance.

[0103] It should be noted that the airborne communication device of the embodiment of the present application is applied to aircraft such as unmanned aerial vehicles, and thus the volume and weight of the airborne communication device are strictly required, resulting in a very compact structure design. If the heat generated by the main processor chip and other heat dissipation components cannot be dissipated in time, the heat will be conducted to other components, thereby causing thermal shock to electronic components and affecting their functions and service life.

[0104] In the related art, the traditional fan control method is generally a negative feedback system based on temperature sensing and speed detection, that is, when the temperature of the heat dissipation component is detected to rise, the fan speed is increased, and then the fan speed is detected again, if the temperature continues to rise, the fan speed is continuously increased. The corresponding typical temperature curve is as follows Figure 6As shown: at t1, the load of the airborne communication device increases, the temperature of the airborne communication device starts to rise (temperature point 1 to temperature point 2), at some time the fan increases the speed, the temperature of the airborne communication device continues to increase, at t2, the fan speed reaches the maximum, the temperature of the airborne communication device continues to slowly increase (temperature point 2 to temperature point 3), and at t3, the temperature of the airborne communication device reaches the inflection point and starts to slowly decrease.

[0105] In combination Figure 6 , if the workload (computing power) of the main processing chip fluctuates sharply, its heat generation will also fluctuate, and if the traditional heat dissipation method is adopted, it will cause the temperature of the airborne communication device to fluctuate sharply, which in turn forms a thermal shock on the working temperature of other components on the circuit board, affecting their functions and service life.

[0106] Based on this, in some embodiments, the control device is configured to control the operating state of the heat dissipation fan based on the to-be-run task.

[0107] It should be noted that the airborne communication device of the embodiments of the present application does not have frequent human-computer interaction, and the to-be-run task is achieved by simulating training through AI (Artificial Intelligence) to realize prediction and management. That is, the heat generation of the airborne communication device corresponds to each to-be-run task predicted and managed by AI. Exemplarily, the to-be-run task can include tasks such as target recognition of unmanned aerial vehicles and power inspection, which are highly repetitive and automated, which are run by GPUs. In this way, the control device can control the operating state of the heat dissipation fan based on the to-be-run task, so that the maximum temperature of the airborne communication device remains stable, effectively reducing the thermal shock during operation.

[0108] Exemplarily, based on the to-be-run task, the operating state of the heat dissipation fan is controlled, including:

[0109] Based on at least one of the running time length, heat generation and temperature rise value of the to-be-run task, a target time point for enhancing the heat dissipation performance is determined, and the target time point is earlier than the start time of the to-be-run task;

[0110] The heat dissipation fan is controlled to start and run at the target speed at the target time point.

[0111] In an application example, as Figure 7 shown, for the n task queues preset for the airborne communication device, the continuous running time length Δt, the computing power requirement A, the heat generation W, and the estimated temperature rise value K of each task queue are simulated and trained by the artificial intelligence processing module in the main processor chip, and a model of the running time length, heat generation and temperature rise value corresponding to the task queue is generated. Then at a certain time before a task queue starts (for example, 5 minutes before the start of the task queue), the heat dissipation fan is started and runs at the target speed. Figure 8As shown in t1), increasing the fan speed (increasing heat dissipation) will lower the overall temperature of the device. Figure 8 Temperature point 2 is reached, and then the task queue officially starts running at time t2. As the task runs, the temperature rises. When the task ends at time t3, the temperature returns to near the starting temperature point 1 before the task runs. This achieves the stability of the highest temperature of the entire airborne communication equipment during the entire working period, reduces thermal stress damage to other components of the device, and extends the life of the entire device.

[0112] Understandably, when the control device is running task queue n, it can pre-cool the airborne communication equipment based on parameters such as the running time, heat generation, and temperature rise of task queue n+1, ensuring that the temperature curve of the airborne communication equipment remains consistent. Figure 8 As shown, the maximum temperature of the airborne communication equipment remains stable and does not fluctuate drastically, reducing the thermal shock to other components of the airborne communication equipment.

[0113] In related technologies, after prolonged operation, the cooling fans of airborne communication equipment accumulate dust and foreign objects, which can reduce their cooling effect. If this accumulation exceeds a certain level, the cooling fans may fail to function properly under extreme conditions. Therefore, there is an urgent need for an effective early warning method to assess the working status of the cooling fans and prevent problems before they occur, thereby meeting the high reliability requirements of airborne communication equipment.

[0114] Accordingly, in some embodiments, the control device is used to detect the dust accumulation status of the cooling fan based on the heat dissipation time of at least one test task.

[0115] It is understood that, in the embodiments of this application, the control device can automatically detect the dust accumulation status of the cooling fan based on at least the heat dissipation time of the test task, thereby enabling early warning of the working status of the cooling fan without increasing hardware costs.

[0116] For example, detecting the dust accumulation status of the cooling fan based on the heat dissipation time of at least one test task includes:

[0117] Obtain the heat dissipation time for running at least one test task, wherein each test task has pre-configured heat dissipation reference parameters for controlling the operation of the cooling fan and a corresponding heat dissipation reference duration;

[0118] Based on the obtained heat dissipation time and heat dissipation baseline duration, the dust accumulation status of the cooling fan is detected.

[0119] It should be noted that for airborne communication equipment, each test task has pre-configured heat dissipation reference parameters and corresponding heat dissipation reference duration. The heat dissipation reference parameters may include the heat generated by the test task and a combination of heat dissipation configuration parameters. This combination of heat dissipation configuration parameters may include the fan speed and reference temperature. The heat dissipation reference duration can be the time it takes for the airborne communication equipment to recover to the reference temperature after the test task is started.

[0120] For example, the actual temperature value of the airborne communication equipment after starting a test task can be detected based on a temperature sensor, and the actual heat dissipation time corresponding to the test task can be determined based on the comparison between the actual temperature value and the reference temperature. In this way, the dust accumulation status of the cooling fan can be detected based on the comparison between the actual heat dissipation time and the reference heat dissipation time.

[0121] For example, based on the acquired heat dissipation time and the heat dissipation baseline duration, the dust accumulation status of the cooling fan is detected, including:

[0122] Calculate the ratio of the difference between the heat dissipation time of at least one test task and the heat dissipation baseline time of at least one test task, divided by the heat dissipation baseline time of at least one test task.

[0123] Based on the comparison result of the ratio with at least one threshold, a warning message indicating the dust accumulation status of the cooling fan is generated.

[0124] It is understandable that the above ratio is positively correlated with the degree of blockage of the cooling fan; that is, the larger the ratio, the more severe the blockage of the cooling fan. For example, by setting multiple thresholds, multi-level early warning of the dust accumulation status of the cooling fan can be achieved. The warning information of this multi-level early warning can be an audible and visual alarm signal or sent to a management platform for centralized processing.

[0125] In one application example, before the airborne communication equipment leaves the factory, such as Figure 9 As shown, n (taking 3 as an example) sets of calibrated heat dissipation reference parameters and heat dissipation reference durations are recorded. Each set of heat dissipation reference parameters includes heat generation θi (i = 1, 2, 3), heat dissipation configuration parameter combination (fan speed, reference temperature) Pi (i = 1, 2, 3), and heat dissipation reference duration (also known as heat dissipation completion time) Ti (i = 1, 2, 3) based on the above parameter combination conditions. The above parameters corresponding to each test task have significant differences.

[0126] During use, the airborne communication equipment runs the aforementioned test tasks at regular intervals (e.g., every 24 hours). Figure 10 The input parameters 1, 2, and 3 shown are... Figure 9 The parameters 1, 2, and 3 shown are the same. The new heat dissipation completion times t1, t2, and t3 are measured, and then S is calculated.

[0127] S = |((t1+t2+t3)-(T1+T2+T3)) / (T1+T2+T3)|

[0128] When S is greater than a certain threshold value: such as S> 30%, that is, the weighted cooling time of the current cooling fan under the same conditions increases by 30% compared with the initial value, it is considered that the dust on the fan has seriously affected the normal work of the fan, and maintenance is needed, and a warning information is given.

[0129] In the specific implementation process, multiple pre-warning levels can be set according to different threshold values of S, such as: 1) S> 10%: three-level pre-warning (heavy); 2) S> 20%, two-level pre-warning (serious); 3) S> 30%, one-level pre-warning (particularly serious); after generating a pre-warning signal, a pre-warning can be given through the indicator light of the airborne communication device or the cloud platform, and a performance degradation protection measure can be taken to avoid damage to the airborne communication device.

[0130] It can be understood that the embodiment of the present application provides an easy-to-implement and reliable cooling fan operation and maintenance detection and pre-warning method, which can intelligently detect the operation and maintenance of the cooling fan and provide pre-warning information without disassembling the machine.

[0131] In an example embodiment, the embodiment of the present application provides a cooling control method applied to an airborne communication device including a cooling fan and a control device, wherein the cooling control method can be executed by the control device, and the method includes:

[0132] Controlling the running state of the cooling fan based on a to-be-run task.

[0133] It should be noted that the airborne communication device of the embodiment of the present application does not have frequent human-computer interaction, and the to-be-run task is simulated training through AI to realize prediction and management. That is, the heat generation of the airborne communication device corresponds to each to-be-run task predicted and managed through AI. For example, the to-be-run task can include a GPU running task for unmanned aerial vehicle target identification, power inspection and other tasks with strong repetition and high automation. In this way, the control device can control the running state of the cooling fan based on the to-be-run task, so that the maximum temperature of the airborne communication device remains stable, and the thermal shock in the running process is effectively reduced.

[0134] In the above scheme, the controlling the running state of the cooling fan based on the to-be-run task includes:

[0135] Determining a target time point for enhancing the cooling performance based on at least one of the running time length, the heat generation and the temperature rise value of the to-be-run task, the target time point being earlier than a starting time point of the to-be-run task;

[0136] The cooling fan is controlled to start at the target time and run at the target speed.

[0137] In one application example, such as Figure 7 As shown, for n pre-set task queues in airborne communication equipment, the artificial intelligence processing module in the main processor chip simulates and trains the continuous runtime Δt, computing power requirement A, heat generation W, and estimated temperature rise value K of each task queue, generating models of the runtime, heat generation, and temperature rise value corresponding to the task queue. Then, at a specific time before the start of a certain task queue (e.g., ... Figure 8 As shown in t1), increasing the fan speed (increasing heat dissipation) will lower the overall temperature of the device. Figure 8 Temperature point 2 is reached, and then the task queue officially starts running at time t2. As the task runs, the temperature rises. When the task ends at time t3, the temperature returns to near the starting temperature point 1 before the task runs. This achieves the stability of the highest temperature of the entire airborne communication equipment during the entire working period, reduces thermal stress damage to other components of the device, and extends the life of the entire device.

[0138] Understandably, when the control device is running task queue n, it can pre-cool the airborne communication equipment based on parameters such as the running time, heat generation, and temperature rise of task queue n+1, ensuring that the temperature curve of the airborne communication equipment remains consistent. Figure 8 As shown, the maximum temperature of the airborne communication equipment remains stable and does not fluctuate drastically, reducing the thermal shock to other components of the airborne communication equipment.

[0139] In some embodiments, the heat dissipation control method further includes:

[0140] The dust accumulation status of the cooling fan is detected based on the heat dissipation time of at least one test task.

[0141] Understandably, the control device can automatically detect the dust accumulation on the cooling fan based on at least the heat dissipation time of the test task, thereby enabling early warning of the cooling fan's operating status without increasing hardware costs.

[0142] In the above scheme, detecting the dust accumulation status of the cooling fan based on the heat dissipation time of at least one test task includes:

[0143] The heat dissipation time for running at least one test task is obtained, wherein each test task has pre-configured heat dissipation reference parameters for controlling the operation of the cooling fan and a corresponding heat dissipation reference duration;

[0144] Based on the obtained heat dissipation time and the heat dissipation baseline duration, the dust accumulation status of the cooling fan is detected.

[0145] It should be noted that for the airborne communication device, each test task has a pre-configured heat dissipation reference parameter and a corresponding heat dissipation reference time length, wherein the heat dissipation reference parameter can include the heat generation of the test task and the heat dissipation configuration parameter combination, the heat dissipation configuration parameter combination can include the fan running speed and the reference temperature, and the heat dissipation reference time length can be the time length for the airborne communication device to recover to the reference temperature after starting the test task.

[0146] In the above scheme, the dust accumulation state of the heat dissipation fan is detected based on the obtained heat dissipation time length and the heat dissipation reference time length, and the dust accumulation state of the heat dissipation fan is detected based on the obtained heat dissipation time length and the heat dissipation reference time length.

[0147] The difference between the heat dissipation time length of the at least one test task and the heat dissipation reference time length of the at least one test task is divided by the heat dissipation reference time length of the at least one test task.

[0148] Based on the comparison result of the ratio and at least one threshold value, the pre-warning information indicating the dust accumulation state of the heat dissipation fan is generated.

[0149] It can be understood that the above ratio is positively correlated with the blockage degree of the heat dissipation fan, that is, the larger the ratio, the more serious the blockage degree of the heat dissipation fan. Exemplarily, by setting multiple thresholds, multi-level pre-warning of the dust accumulation state of the heat dissipation fan can be realized, and the pre-warning information of the multi-level pre-warning can be an audible and visual alarm signal or sent to a management platform for centralized processing by the management platform.

[0150] In an application example, before the airborne communication device is shipped, as shown in Figure 9 n (here, 3 is taken as an example) sets of calibrated heat dissipation reference parameters and heat dissipation reference time lengths are recorded, each set of heat dissipation reference parameters includes heat generation θi (i=1, 2, 3), heat dissipation configuration parameter combination (fan running speed, reference temperature) Pi (i=1, 2, 3), heat dissipation reference time length (also known as heat dissipation completion time) Ti (i=1, 2, 3) under the above parameter combination condition, and the above parameters corresponding to each test task have obvious differences.

[0151] In the use process of the airborne communication device, the aforementioned test task is run at a certain time interval (such as 24 hours), that is, Figure 10 The input parameters 1, 2 and 3 shown in Figure 9 The input parameters 1, 2 and 3 shown in

[0152] S = |((t1+t2+t3)-(T1+T2+T3)) / (T1+T2+T3)|

[0153] When S is greater than a certain threshold value: such as S>30%, that is, the weighted heat dissipation time of the current heat dissipation fan under the same condition is increased by 30% compared with the initial value, it is considered that the dust on the fan has seriously affected the normal work of the fan, and maintenance is needed, and a warning information is given.

[0154] In the implementation process, multiple pre-warning levels can be set according to different thresholds of S, such as: 1) S>10%: three-level pre-warning (heavy); 2) S>20%, two-level pre-warning (serious); 3) S>30%, one-level pre-warning (particularly serious). After generating the pre-warning signal, the onboard communication equipment can give a pre-warning through the indicator light or the cloud platform, and take protective measures such as performance degradation to avoid damage to the onboard communication equipment.

[0155] In the example embodiment, the application also provides a storage medium, that is, a computer storage medium, which can be a computer readable storage medium, for example, a storage medium including a memory for storing a computer program, and the computer program is executed by a processor to implement the steps of the heat dissipation control method of the application. The computer readable storage medium can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a ferromagnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM). The magnetic surface memory can be a disk memory or a tape memory.

[0156] It should be noted that the technical solutions described in the embodiments of the application can be combined arbitrarily without conflict.

[0157] The above is only a specific implementation of the application, but the protection scope of the application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the application, which should be covered within the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. An airborne communication device, characterized by The onboard communication device comprises: a first shell and a second shell arranged oppositely, a containing space being formed between the first shell and the second shell, an installation slot being formed on an outer surface of the first shell, and the first shell having heat dissipation fins; a circuit substrate fixed in the containing space; a control device arranged on the circuit substrate; a heat dissipation fan arranged at the installation slot and located outside the containing space; The onboard communication device further comprises: a communication antenna arranged on the circuit substrate, an opening corresponding to the communication antenna being formed on the first shell and communicating with the containing space; a waterproof shield arranged at the opening for sealing the opening; wherein the first shell is made of metal material, and the waterproof shield is made of non-metal material; the waterproof shield is fixed to an inner wall surface of the first shell and has a wedge shape protruding towards the opening, the opening also communicates with the installation slot, and a through hole is formed on the waterproof shield for connecting a conductive wire of the heat dissipation fan to the circuit substrate.

2. The onboard communication device according to claim 1, wherein: the heat dissipation fins are symmetrically arranged around the installation slot.

3. The airborne communications equipment of claim 1, wherein, The control device comprises a main processor chip arranged towards the first shell, and the onboard communication device further comprises: a thermal interface material layer arranged on a surface of the main processor chip and in contact with the inner wall surface of the first shell.

4. The airborne communications equipment of claim 1, wherein, The onboard communication device further comprises: a fan cover plate arranged on the first shell and covering the heat dissipation fan in the installation slot, and an air inlet being formed on the fan cover plate.

5. The onboard communication device according to claim 1, wherein: an area of the opening is larger than an area of the communication antenna projected onto the first shell.

6. The airborne communications equipment of claim 1, wherein, The control device comprises: a fan control circuit electrically connected to the conductive wire of the heat dissipation fan for controlling an operating state of the heat dissipation fan.

7. The airborne communications equipment of claim 1, wherein, The onboard communication device further comprises: a temperature sensor for detecting a temperature value in the containing space and transmitting the temperature value to the control device.

8. The airborne communications device of any one of claims 1 to 7, wherein, The control device is configured to control the operating state of the heat dissipation fan based on a to-be-executed task.

9. The airborne communications equipment of claim 8, wherein, The control of the operating state of the heat dissipation fan based on the to-be-executed task comprises: determining a target time point for enhancing heat dissipation performance based on at least one of a running time length, a heat generation amount and a temperature rise value of the to-be-executed task, the target time point being earlier than a starting time point of the to-be-executed task; controlling the heat dissipation fan to start and run at a target rotating speed at the target time point.

10. The airborne communications device of any one of claims 1 to 7, wherein, The control device is configured to detect a dust accumulation state of the heat dissipation fan based on heat dissipation time consumptions of at least one test task.

11. The airborne communications equipment of claim 10, wherein, The detection of the dust accumulation state of the heat dissipation fan based on the heat dissipation time consumptions of the at least one test task comprises: obtaining heat dissipation time consumptions of running at least one test task, wherein each test task has a pre-configured heat dissipation reference parameter for controlling the heat dissipation fan to run and a corresponding heat dissipation reference time length; detecting the dust accumulation state of the heat dissipation fan based on the obtained heat dissipation time consumptions and the heat dissipation reference time length.

12. The airborne communications equipment of claim 11, wherein, The accumulated dust state of the heat dissipation fan is detected based on the obtained heat dissipation time consumption and the heat dissipation reference time length, including: calculating a ratio of a difference between the heat dissipation time consumption of the at least one test task and the heat dissipation reference time length of the at least one test task divided by the heat dissipation reference time length of the at least one test task; generating early warning information indicating the accumulated dust state of the heat dissipation fan based on a comparison result of the ratio and at least one threshold value.

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