A remote monitoring device for electronic speed regulator based on CAN bus

Abstract

This invention relates to a remote monitoring device for an electronic speed controller based on a CAN bus. The monitoring device includes a monitor connected to the CAN bus for collecting operating parameters of the electronic speed controller; a smoke alarm module mounted on the monitor for detecting smoke generated by the electronic speed controller; and a smoke extinguishing module mounted on the monitor, including a rotating unit and a smoke extinguishing hood mounted on the rotating unit. This invention features a rotating unit and a smoke extinguishing hood. Upon power failure, the rotating unit automatically rotates the smoke hood, completely enclosing the electronic speed controller that is generating smoke or open flame, thus physically isolating it and blocking the external oxygen supply. This design effectively suppresses combustion reactions and prevents the fire from spreading to surrounding equipment or cables, making it particularly suitable for scenarios where unattended operation, remote areas, or narrow installation locations make immediate manual intervention difficult.

Description

Technical Field

[0001] This invention belongs to the field of electronic speed controller monitoring technology, specifically relating to a remote monitoring device for electronic speed controllers based on a CAN bus. Background Technology

[0002] Electronic speed controllers are widely used in drones, electric vehicles, industrial robots, and marine power systems to precisely control the speed, direction, and braking of motors.

[0003] During use, when the electronic speed controller experiences faults such as excessive current (e.g., stalled rotor or overload), heat dissipation failure, excessive voltage, or short circuit, its internal components may carbonize, leading to a short-circuit arc and ultimately causing smoke or even open flame. In remote areas or confined spaces, on-site personnel may find it difficult to detect and handle the hazard in a timely manner, easily causing equipment damage, production stoppages, or even fires.

[0004] In the existing technology, there is a lack of a device that can remotely monitor electronic speed controllers in real time and automatically extinguish fires when smoke or fire occurs. Summary of the Invention

[0005] The purpose of this invention is to provide a remote monitoring device for an electronic speed controller based on a CAN bus in order to solve the problems mentioned in the background art.

[0006] The present invention achieves the above objectives through the following technical solutions: A remote monitoring device for an electronic speed controller based on a CAN bus includes: The monitor, connected to the CAN bus, is used to collect the operating parameters of the electronic speed controller; A smoke alarm module, installed on the monitor, is used to detect smoke generated by the electronic speed controller; And a smoke extinguishing module, located on the monitor, including a rotating unit and a smoke extinguishing hood located on the rotating unit; When the smoke alarm module is triggered, the rotating unit drives the smoke hood to move, so that the smoke hood covers the electronic speed controller that generates smoke, thus isolating it from the air.

[0007] Preferably, the rotating unit includes two brackets fixedly mounted on the monitor, two rotating shafts rotatably mounted on the two brackets, and a drive motor fixedly connected to one of the rotating shafts, and the smoke extinguishing hood is fixedly mounted on the rotating shaft; The smoke extinguishing module also includes rotating plates that are fixedly mounted on two rotating shafts, and the smoke extinguishing hood is fixedly installed between the two rotating plates.

[0008] Preferably, a flexible material is fixedly provided at the opening of the smoke hood. The flexible material is used to fill the gap between the smoke hood and the mounting surface of the electronic speed controller when the smoke hood covers the electronic speed controller, so as to enhance the sealing effect. The flexible material is made of high-temperature resistant rubber.

[0009] Preferably, the monitor is fixedly provided with two telescopic members, which are used to press against the rotating plate after the smoke hood covers the electronic speed controller, so as to increase the clamping force of the smoke hood.

[0010] Preferably, the smoke hood is provided with a through hole, and a smoke storage container is connected to the through hole, the inner cavity of the smoke storage container being in communication with the internal space of the smoke hood; The smoke storage container is equipped with an air pump at its opening, which is used to draw the smoke from the smoke hood into the smoke storage container. At least a portion of the smoke hood is made of a transparent, heat-resistant material, allowing observation of the electronic speed controller's status through the smoke hood after it covers the controller.

[0011] Preferably, a wire-cutting module is fixedly provided on both of the rotating plates; The wire cutting module includes several first cutting sections fixedly mounted on the rotating plate, several second cutting sections rotatably mounted on the rotating plate, and a driving component for driving the second cutting sections to rotate. Among them, several of the first cutting sections and second cutting sections correspond one-to-one; The smoke hood is equipped with a spare speed controller; The first cutting section is provided with a conductive sheet, which is electrically connected to the wiring of the spare speed controller located on the smoke extinguishing hood. When the driving component drives the second cutting section to rotate, the second cutting section cooperates with the first cutting section to cut off the wiring of the electronic speed controller, and the cut wire ends contact the conductive sheet, so that the backup speed controller is turned on and started.

[0012] Preferably, the second cutting section is provided with a locking block for controlling the position of the wire end.

[0013] Preferably, the smoke hood has a notch, and a rotating drum is rotatably installed at the notch. The spare speed controller is fixedly installed on the rotating drum. The rotating drum is used to block the notch to maintain a relative seal inside the smoke hood. The drive unit is used to rotate the drum when the backup speed controller fails, so as to rotate the backup speed controller into the smoke extinguishing hood.

[0014] The beneficial effects of this invention are as follows: 1. This invention includes a rotating unit and a smoke hood. After a power outage, the rotating unit automatically drives the smoke hood to rotate, completely covering the electronic speed controller that generates smoke or open flame, thus blocking the external oxygen supply through physical isolation. This design effectively suppresses the combustion reaction and prevents the fire from spreading to other surrounding equipment or cables, making it particularly suitable for scenarios where it is difficult to intervene manually in a timely manner, such as unattended operation, remote areas, or narrow installation locations.

[0015] 2. The smoke hood of this invention is connected to a smoke storage container and an air pump. After covering the electronic speed controller, the air pump can draw the smoke and gas inside the hood into the smoke storage container for temporary storage. On the one hand, this avoids the direct inhalation of toxic fumes when maintenance personnel open the smoke hood; on the other hand, the actual situation inside the electronic speed controller can be clearly observed through the protective cover made of transparent heat-resistant glass, making it easier to determine the degree of fault and take targeted repair measures.

[0016] 3. This invention integrates a wire-cutting module and a rotary drum-type backup speed controller into the smoke hood. On the basis of automatic fire suppression, it further realizes automatic electrical isolation of the faulty ESC, rapid and reliable switching of the backup speed controller, and automatic isolation of secondary faults, which significantly improves the working continuity and safety of the electronic speed controller system in unmanned or narrow areas. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Enlarged view of point B in the middle; Figure 4 This is a schematic diagram of the second perspective structure of the present invention; Figure 5 This is a schematic diagram illustrating the working principle of the present invention; Figure 6 This is a schematic diagram showing the positional relationship between the second cutting section and the card block in this invention.

[0018] In the diagram: 1. Monitor; 2. Smoke alarm module; 3. Smoke hood; 4. Bracket; 5. Rotating shaft; 6. Drive motor; 7. Rotating plate; 8. Flexible material; 9. Telescopic component; 10. Smoke storage container; 11. Air pump; 12. Protective ring; 13. Protective cover; 14. Cutting section 1; 15. Cutting section 2; 16. Drive component; 17. Backup speed controller; 18. Conductive sheet; 19. Clamping block; 20. Rotating drum. Detailed Implementation

[0019] The present application will now be described in further detail. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example 1

[0021] like Figure 1-6 As shown, a remote monitoring device for an electronic speed controller based on a CAN bus includes a monitor 1 connected to the CAN bus, a smoke alarm module 2 mounted on the monitor 1, and a smoke extinguishing module mounted on the monitor 1. The monitor 1 is used to monitor the electronic speed controller. The monitor 1 collects parameters such as current, temperature, and speed of the electronic speed controller via the CAN bus and remotely uploads them to the monitoring platform via 4G / Wi-Fi, realizing visual status monitoring, abnormal alarms, remote control, historical data tracing, and predictive maintenance of the electronic speed controller.

[0022] The smoke extinguishing module includes a rotating unit on the monitor 1 and a smoke extinguishing hood 3 on the rotating unit. After the smoke alarm module 2 (which may be a photoelectric smoke sensor) is triggered, the rotating unit drives the smoke extinguishing hood 3 to rotate. The smoke extinguishing hood 3 is used to cover the electronic speed controller that generates smoke.

[0023] It should be noted that excessive current (locked rotor / overload), heat dissipation failure, excessive voltage, or short circuits can cause carbonization of the electronic speed controller's components, leading to short-circuit arcing, smoke, and even open flames. Smoke or open flames cause a significant rise in the temperature of the electronic speed controller.

[0024] When the smoke alarm module 2 detects smoke from the electronic speed controller, its first action should be to immediately send an emergency stop command via the CAN bus to cut off the power to the electronic speed controller. The received data is then transmitted to the control center of monitor 1. The control center (chip) of monitor 1 controls the rotating unit to rotate, causing the smoke hood 3 to rotate and cover the electronic speed controller. The smoke hood 3 isolates the electronic speed controller from the air, not only addressing the fire but also containing the smoke within the hood, reducing air pollution and preventing the spread of danger. In remote areas or areas with limited space, this allows for immediate control of the situation, allowing personnel to respond.

[0025] Preferably, the rotating unit in this embodiment includes two brackets 4 fixedly mounted on the monitor 1, two rotating shafts 5 rotatably mounted on the two brackets 4, and a drive motor 6 fixedly connected to one of the rotating shafts 5, with the smoke extinguishing module fixedly mounted on the rotating shaft 5.

[0026] The working principle of the rotating unit is as follows: the drive motor 6 drives the rotating shaft 5 to rotate, and the smoke extinguishing module rotates when the rotating shaft 5 rotates.

[0027] Furthermore, the smoke extinguishing module also includes rotating plates 7 fixedly mounted on two rotating shafts 5, with the smoke extinguishing hood 3 fixedly installed between the two rotating plates 7. The smoke extinguishing hood 3 is a shell, including a protective ring 12 in contact with the rotating plates 7 and a hemispherical (or cubic, or other shaped) protective cover 13 connected to the protective ring 12. The protective ring 12 is made of stainless steel and has a certain strength. The protective cover 13 is made of fire extinguishing material, capable of withstanding high temperatures, and will not deform or be damaged under the high-temperature baking of the electronic speed controller. For example, heat-resistant glass (borosilicate glass) is most commonly used. The long-term operating temperature is approximately 280-300℃, and the instantaneous temperature resistance can reach 400-500℃. It has a low coefficient of thermal expansion, good thermal shock resistance, moderate cost, and allows observation of the internal situation through the protective cover 13.

[0028] Furthermore, a flexible material 8 is fixedly installed at the opening of the smoke hood 3. The flexible material 8 is used to isolate the electronic speed controller from the air. The flexible material 8 is arranged around the protective ring 12, and its thickness is at least 5 cm. When the protective ring 12 covers the electronic speed controller, it presses the flexible material 8 against the mounting surface of the electronic speed controller (which is usually a flat surface). The flexible material 8 deforms under the pressure of the protective ring 12, thus adaptively compensating for unevenness in the flat surface (such as wiring, other parts, or unevenness of the protective ring 12 itself), thereby ensuring the electronic speed controller is in a relatively sealed state. In this state, the oxygen required for combustion of the electronic speed controller is isolated, resulting in insufficient ignition conditions and suppressing ignition or smoke.

[0029] Preferably, the flexible material 8 is made of rubber, such as silicone rubber (VMQ / PVMQ), which is the most commonly used heat-resistant rubber. By changing the formulation (e.g., adding phenyl groups), the upper limit of temperature resistance can be significantly increased. Standard silicone rubber: operating temperature -50°C to 250°C, can be used continuously at 200°C, with 250°C being the short-term limit. Phenyl silicone rubber, on the other hand, can extend its operating temperature to 300°C (short-term) while maintaining low-temperature performance (-100°C). Features: This flexible material 8 has excellent elasticity and compressive strength, enabling it to tightly conform to uneven surfaces under pressure.

[0030] Furthermore, two telescopic members 9 are fixedly installed on the monitor 1. The telescopic members 9 are used to press the rotating plate 7 to increase the clamping force of the smoke hood 3. Preferably, the telescopic members 9 can be electric push rods.

[0031] It should be noted that the rotation of the smoke hood 3 is driven by the drive motor 6. Because the rotating plate 7 has a certain length and its lever arm is relatively long, the drive motor 6 has a large torque during the process of rotating and squeezing the flexible material 8. The power of a typical drive motor 6 is insufficient, and the squeezing force on the flexible material 8 is insufficient, thus affecting the sealing effect of the electronic speed controller.

[0032] With the telescopic component 9 installed, when the rotating plate 7 rotates and causes the smoke hood 3 to cover the electronic speed controller, the telescopic end of the telescopic component 9 extends and presses against the rotating plate 7, causing the rotating plate 7 to continue its rotational tendency. The force exerted by the telescopic component 9 on the rotating plate 7 is transmitted to the flexible material 8, causing the flexible material 8 to undergo greater deformation, thereby enabling a better seal for the electronic speed controller.

[0033] Furthermore, the smoke hood 3 is provided with a through hole, and a smoke storage container 10 is fixedly installed at the through hole. The inner cavity of the smoke storage container 10 is connected to the internal space of the smoke hood 3.

[0034] An air pump 11 is provided at the opening of the smoke storage container 10.

[0035] It should be noted that when the smoke hood 3 covers the electronic speed controller, the air pump 11 draws the gas inside the smoke hood 3 into the smoke storage container 10. This not only temporarily stores the smoke, preventing staff from being harmed by the smoke when they open the smoke hood 3 later, but also vacuums the smoke hood 3, further reducing the chance of fire.

[0036] After the smoke is removed, the electronic speed controller can be observed through monitor 1. The status of the electronic speed controller can be seen through the transparent protective cover 13, which makes it easier for staff to take targeted measures to deal with the fire.

[0037] Example 2

[0038] Based on Example 1, in this example, both rotating plates 7 are fixedly equipped with wire-cutting modules.

[0039] The wire cutting module includes several primary cutting sections 14 fixedly mounted on the rotating plate 7, several secondary cutting sections 15 rotatably mounted on the rotating plate 7, and a drive unit 16 for driving the secondary cutting sections 15 to rotate. Preferably, the drive unit 16 is a multi-section electric actuator with a large stroke.

[0040] Among them, several No. 1 cutting sections 14 and No. 2 cutting sections 15 correspond one-to-one. According to the model of the electronic speed controller, the No. 1 cutting section 14 corresponds one-to-one with the wiring of the electronic speed controller.

[0041] The smoke hood 3 is equipped with a spare speed controller 17 (the same model as the original electronic speed controller).

[0042] It should be noted that in remote areas or areas with narrow installation spaces, staff may not be able to handle the situation immediately. If the electronic speed controller stops working, the corresponding motor will also stop working, which may cause production stoppages and affect the normal operation of production.

[0043] By incorporating a wire-cutting module, the smoke hood 3, while covering the damaged electronic speed controller, causes the first cutting section 14 to come into contact with the controller's wiring, with the tip of the first cutting section 14 passing over the wiring. As the telescopic end of the drive member 16 extends, it presses against the tail section of the second cutting section 15, causing the second cutting section 15 to rotate along its rotation point, thus rotating relative to the first cutting section 14. When the cutting blades of the second cutting section 15 and the first cutting section 14 approach each other, they cut the wiring of the electronic speed controller, severing the wire.

[0044] After the wiring is cut, the break point of the wiring contacts the first cutting section 14. A conductive piece 18 is provided on the first cutting section 14, and the conductive piece 18 is electrically connected to the wiring of the backup speed controller 17. After all the wiring of the original electronic speed controller is connected to the backup speed controller 17, the backup speed controller 17 is powered on and starts to control the motor, and production or construction can proceed normally.

[0045] The other side of the first cutting section 14, where the conductive sheet 18 is not installed, is equipped with an insulating sheet, which can insulate the original electronic speed controller and prevent it from being powered on again.

[0046] To ensure that the cut wire end makes normal contact with the conductive sheet 18, a locking block 19 is fixedly provided on the second cutting section 15. The locking block 19 has an opening and can limit the wire end. After the wire end is cut, it continues to be limited by the locking block 19, so that the wire end can make smooth contact with the conductive sheet 18.

[0047] Example 3

[0048] Based on Example 2, the smoke hood 3 in this example has a notch, and a rotating drum 20 is rotatably installed at the notch. A spare speed regulator 17 is fixedly installed on the rotating drum 20. The rotating drum 20 can block the notch, maintaining a relative seal inside the smoke hood 3.

[0049] It should be noted that when the backup speed controller 17 burns out again due to external reasons, the telescopic end of the drive component 16 continues to extend, and the drive component 16 drives the rotating drum 20 to rotate, rotating the burned and smoking backup speed controller 17 into the smoke hood 3 to reduce the potential danger of smoke.

[0050] The specific rotation method is as follows: the rotating drum 20 is rotatably mounted on the smoke extinguishing hood 3 via the rotating shaft 5. When the telescopic end of the driving component 16 extends, it contacts the surface of the rotating shaft 5, and the rotating shaft 5 is driven to rotate by friction, thereby causing the rotating drum 20 to rotate. Preferably, a gear is fixedly sleeved on the rotating shaft 5, and the telescopic end of the driving component 16 is provided with a tooth groove. The driving component 16 can use the tooth groove to drive the gear to rotate, thereby realizing the rotation of the rotating shaft 5.

[0051] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A remote monitoring device for an electronic speed controller based on a CAN bus, characterized in that, include: The monitor (1) is connected to the CAN bus for collecting the operating parameters of the electronic speed controller; A smoke alarm module (2) is installed on the monitor (1) and is used to detect smoke generated by the electronic speed controller; And a smoke extinguishing module, which is located on the monitor (1), including a rotating unit and a smoke extinguishing hood (3) located on the rotating unit. After the smoke alarm module (2) is triggered, the rotating unit drives the smoke hood (3) to move, so that the smoke hood (3) covers the electronic speed controller that generates smoke, so as to isolate the air.

2. The remote monitoring device for an electronic speed controller based on a CAN bus according to claim 1, characterized in that, The rotating unit includes two brackets (4) fixedly mounted on the monitor (1), two rotating shafts (5) rotatably mounted on the two brackets (4), and a drive motor (6) fixedly connected to one of the rotating shafts (5). The smoke hood (3) is fixedly mounted on the rotating shaft (5). The smoke extinguishing module also includes rotating plates (7) that are fixedly mounted on two rotating shafts (5), and the smoke extinguishing hood (3) is fixedly mounted between the two rotating plates (7).

3. The remote monitoring device for an electronic speed controller based on a CAN bus according to claim 1, characterized in that, A flexible material (8) is fixedly provided at the opening of the smoke hood (3). The flexible material (8) is used to fill the gap between the smoke hood (3) and the mounting surface of the electronic speed controller when the smoke hood (3) covers the electronic speed controller, so as to enhance the sealing effect. The flexible material (8) is made of high-temperature resistant rubber.

4. The remote monitoring device for an electronic speed controller based on a CAN bus according to claim 1, characterized in that, Two telescopic components (9) are fixedly provided on the monitor (1). The telescopic components (9) are used to press against the rotating plate (7) after the smoke hood (3) covers the electronic speed controller, so as to enhance the clamping force of the smoke hood (3).

5. The remote monitoring device for an electronic speed controller based on a CAN bus according to claim 1, characterized in that, The smoke hood (3) is provided with a through hole, and a smoke storage container (10) is connected to the through hole. The inner cavity of the smoke storage container (10) is connected to the inner space of the smoke hood (3). The smoke storage container (10) is equipped with an air pump (11) at its opening, which is used to draw the smoke in the smoke extinguishing hood (3) into the smoke storage container (10); At least a portion of the smoke hood (3) is made of a transparent heat-resistant material, and is used to observe the status of the electronic speed controller through the smoke hood (3) after the smoke hood (3) covers the electronic speed controller.

6. A remote monitoring device for an electronic speed controller based on a CAN bus according to claim 2, characterized in that, Both rotating plates (7) are fixedly equipped with wire-cutting modules; The wire cutting module includes a plurality of first cutting parts (14) fixedly mounted on the rotating plate (7), a plurality of second cutting parts (15) rotatably mounted on the rotating plate (7), and a driving component (16) for driving the second cutting parts (15) to rotate. Among them, several of the first cutting sections (14) and the second cutting sections (15) correspond one-to-one; The smoke hood (3) is equipped with a spare speed regulator (17). The first cutting section (14) is provided with a conductive sheet (18), which is electrically connected to the wiring of the spare speed controller (17) provided on the smoke extinguishing hood (3). When the drive unit (16) drives the second cutting part (15) to rotate, the second cutting part (15) cooperates with the first cutting part (14) to cut off the wiring of the electronic speed controller, and the cut wire ends contact the conductive sheet (18), so that the standby speed controller (17) is turned on and started.

7. A remote monitoring device for an electronic speed controller based on a CAN bus according to claim 6, characterized in that, The second cutting section (15) is provided with a locking block (19) for controlling the position of the wire end.

8. A remote monitoring device for an electronic speed controller based on a CAN bus according to claim 6, characterized in that, The smoke hood (3) has a notch, and a rotating drum (20) is rotatably installed at the notch. The spare speed controller (17) is fixedly installed on the rotating drum (20). The rotating drum (20) is used to block the notch to maintain the relative seal inside the smoke hood (3). The drive unit (16) is used to drive the drum (20) to rotate when the backup speed controller (17) fails, so as to rotate the backup speed controller (17) into the smoke hood (3).

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