Low-torque and low-noise electric slip ring system and method based on miniature high-definition imaging device

Abstract

The application relates to the field of experimental research, in particular to a low-torque and low-noise electric slip ring system and method based on a micro high-definition imaging device, which comprises an electric slip ring, a video data transmission unit and a following rotating unit; the electric slip ring is used for GMSL2 serial data transmission and has one 6G high-frequency channel and 16 low-frequency circuit channels; the video data transmission unit comprises a serial data encoder and a serial data decoder; the serial data encoder is used for encoding mipi csi-2 video data transmitted by the micro high-definition imaging device into a GMSL2 serial data stream and transmitting the GMSL2 serial data stream to the serial data decoder through the electric slip ring; and the serial data decoder is used for decoding the received GMSL2 serial data stream into the mipi csi-2 video data and transmitting the mipi csi-2 video data to a data acquisition device. The application realizes stable data transmission in a physical contact mode and avoids cable winding.

Description

Technical Field

[0001] This invention relates to the field of experimental research technology, specifically to a low-torque, low-noise electric slip ring system and method based on a miniature high-definition imaging device. Background Technology

[0002] Miniature high-definition imaging devices are miniaturized, high-resolution imaging devices that can capture and present high-quality images. They are widely used in fields such as neuroscience and biomedical research. However, traditional miniature high-definition imaging devices usually use wired connections for data transmission. This method not only limits the range of motion of the miniature high-definition imaging device, but also easily leads to a decrease in data transmission quality due to cable tangling and pulling, and may even damage the miniature high-definition imaging device and data transmission device.

[0003] To address this issue, researchers began exploring wireless data transmission schemes. However, wireless transmission methods face numerous challenges in practical applications, such as signal interference, transmission distance limitations, and energy consumption. Therefore, a low-torque, low-noise electric slip ring system based on a miniature high-definition imaging device was designed. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a low-torque, low-noise electric slip ring system and method based on a miniature high-definition imaging device, which achieves stable data transmission through physical contact while avoiding the problem of cable tangling.

[0005] To address the aforementioned technical problems, the present invention provides a low-torque, low-noise slip ring system based on a miniature high-definition imaging device, comprising an electric slip ring, a video data transmission unit, and a following rotation unit;

[0006] The electric slip ring is used for GMSL2 serial data transmission and has one 6G high-frequency channel and 16 low-frequency circuit channels.

[0007] The video data transmission unit includes a serial data encoder and a serial data decoder, wherein:

[0008] The serial data encoder is used to encode the MIPI CSI-2 video data transmitted by the miniature high-definition imaging device into a GMSL2 serial data stream, and transmit it to the serial data decoder through an electric slip ring.

[0009] The serial data decoder is used to decode the received GMSL2 serial data stream into MIPI CSI-2 video data and transmit it to the data acquisition device.

[0010] The following rotation unit monitors whether the MIPI CSI-2 video data cable is rotating, measures and calculates the required rotation angle, and controls the synchronous motor to rotate synchronously to prevent the video data cable from getting tangled.

[0011] In one alternative embodiment, the following rotation unit includes an angle sensor, a synchronous motor, and a synchronous motor drive controller. The angle sensor is used to monitor the deflection angle of the video data line in real time, and the synchronous motor rotates according to the instructions of the synchronous motor drive controller to release the rotational torque on the video transmission line.

[0012] In an alternative embodiment, the device further includes a housing, in which the following rotating part, the video data transmission part, and the electric slip ring are fixed. A first circuit board is connected to the top of the electric slip ring, a second circuit board is fixedly connected above the video data transmission part, the angle sensor is fixed to the middle of the bottom of the second circuit board, and the serial data encoder is fixed to the top of the second circuit board.

[0013] In an alternative embodiment, a free-rotating part is also included, which is fixed to the bottom inside the housing;

[0014] The free-rotating part includes a fixed plate, which is fixed to the bottom of the housing. A base is fixedly connected to the top of the fixed plate. A magnetizing shaft is rotatably connected to the base through a bearing. A rotating lever arm is fixedly connected to the bottom of the outer surface of the magnetizing shaft. A magnet is connected to the top of the magnetizing shaft.

[0015] In one alternative embodiment, the angle sensor is a magnetic rotational position sensor used to measure the absolute angle of the diameter on the magnetization shaft. When the MIPI CSI-2 video data cable deflects, the deflection torque is transmitted to the freely rotating magnetization shaft through a rotating lever arm, causing the magnet to rotate. The angle sensor monitors the deflection angle in real time.

[0016] In one alternative embodiment, the slip ring has a fixed portion and a rotatable portion. A large gear is fixedly fitted onto the rotatable portion, and a small gear is fixedly fitted onto the output end of the synchronous motor. The teeth of the large gear mesh with the teeth of the small gear, and the synchronous motor drives the rotatable portion of the slip ring to rotate through gear transmission.

[0017] In one alternative embodiment, a bracket is fixedly connected to the top of the housing, and a terminal block is fixedly connected to the middle of the bracket.

[0018] A low-torque, low-noise electric slip ring method based on miniature high-definition imaging devices includes the following steps:

[0019] a) Initialize the serial data encoder and serial data decoder;

[0020] b) After initialization is complete, the serial data encoder will wait for the mipicsi-2 video data stream transmitted by the miniature high-definition imaging device;

[0021] c) The serial data encoder receives the MIPI CSI-2 video data stream and encodes it into a GMSL2 serial data stream;

[0022] d) Transmit the GMSL2 serial data stream to the serial data decoder;

[0023] e) The serial data decoder decodes the GMSL2 serial data stream into MIPI CSI-2 video data and transmits it to the data acquisition device;

[0024] f) The rotating part monitors the deflection angle of the MIPI CSI-2 video data cable and controls the synchronous motor to rotate as needed to prevent the video data cable from getting tangled.

[0025] In one alternative approach, in step f), the rotating part monitors the deflection angle of the video data line in real time via an angle sensor. When the deflection angle exceeds a preset threshold, the synchronous motor is controlled to rotate to release the rotational torque on the video transmission line. When the deflection angle is less than the preset threshold, the rotation stops.

[0026] In one alternative approach, a step of configuring an initial angle on a PC is also included. This initial angle serves as the default angle value for the control system and is used for subsequent deflection angle monitoring and correction.

[0027] By employing the above technical solution, the present invention provides a low-torque, low-noise electric slip ring system and method based on a miniature high-definition imaging device, which has at least the following beneficial effects:

[0028] By controlling the rotation of the video data cable caused by the movement of the experimental animal using an electric slip ring, tangling of the video data cable can be prevented. By monitoring the rotation angle of the video data cable, the synchronous motor can be driven to rotate synchronously with the animal's movement even at a very small rotation angle. At the same time, the electric slip ring structure maintains a stable electrical signal connection and optical signal transmission, avoiding injury to the experimental animal due to tangling of the video data cable, protecting the experimental equipment, and improving the success rate of the experiment. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a block diagram of the system structure of the present invention;

[0031] Figure 2 This is an assembly structure diagram of the present invention;

[0032] Figure 3 This is a schematic diagram of a partial assembly structure of the present invention;

[0033] Figure 4 This is a bottom view of the second circuit board structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the free-rotating part of the present invention;

[0035] Figure 6 This is a schematic diagram of the rotary drive synchronous motor structure of the present invention;

[0036] Figure 7 This is a flowchart of the rotation control process in this invention;

[0037] Figure 8 This is a flowchart of the video data transmission process of the present invention;

[0038] Figure 9 This is a flowchart of the rotation following program control of the present invention;

[0039] Figure 10 This is a schematic diagram of video data stream transmission according to the present invention.

[0040] In the diagram: 100, following rotation part; 101, synchronous motor; 1011, pinion; 102, synchronous motor drive controller; 103, angle sensor; 200, video data transmission part; 201, serial data decoder; 202, serial data encoder; 300, electric slip ring; 301, large gear; 400, first circuit board; 500, second circuit board; 600, housing; 700, free rotation part; 701, fixing plate; 702, base; 703, magnetized shaft; 704, rotating lever arm; 705, magnet; 800, terminal block. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In animal experimental research, miniature high-definition imaging devices are typically fixed to the head of experimental animals to record brain activity or other biological processes in real time. The miniature high-definition imaging devices are connected to the data acquisition equipment (DAQ) via video data cables (such as MIPI CSI-2 data cables) to transmit high-definition video data.

[0043] However, when laboratory animals move freely, especially during exploration or behavioral experiments in complex environments, their heads and necks naturally rotate to observe their surroundings or respond to stimuli. This natural head rotation causes the miniature high-definition imaging device fixed to the animal's head and its connected video data cable to rotate as well.

[0044] When an animal turns its head, the miniature high-definition imaging device and data cable, as a whole, will rotate around a fixed point on the animal's neck or head. If this rotation continues without a proper compensation mechanism, it will cause the video data cable to become tangled.

[0045] Tangled video data cables not only affect the quality of data transmission, as twisting and bending of the cable can introduce noise or signal attenuation, but can also cause the connection between the data cable and the miniature high-definition imaging device or data acquisition device to become loose or break, thus interrupting the acquisition of experimental data. More seriously, if the data cable is tangled too tightly or the animal accidentally pulls on the data cable while moving, it can cause injury to the experimental animal or damage the miniature high-definition imaging device and data transmission device.

[0046] Therefore, a low-torque, low-noise slip ring system based on a miniature high-definition imaging device was designed to solve this problem. This system monitors the rotation angle of the video data cable and drives a synchronous motor 101 to rotate synchronously, compensating for the cable rotation caused by animal activity. The slip ring 300 maintains a stable electrical signal connection and optical signal transmission during rotation, thus avoiding tangling of the video data cable and damage to the experimental equipment. It also protects the experimental animals from injury, improving the success rate of the experiment and the reliability of the data.

[0047] Specifically:

[0048] Please see Figure 1 A low-torque, low-noise electric slip ring system based on a miniature high-definition imaging device includes an electric slip ring 300, a video data transmission unit 200, and a following rotation unit 100. It aims to solve the problem of video data cables easily getting tangled during experimental animal activities, while ensuring high-quality data transmission.

[0049] The slip ring 300 is used for GMSL2 serial data transmission. It has one 6G high-frequency channel to support high-speed and high-capacity data transmission, meeting the real-time transmission requirements of high-resolution video data of miniature high-definition imaging equipment. In addition, the slip ring 300 is also equipped with 16 low-frequency circuit channels to provide a stable and reliable transmission path for other auxiliary signals (such as control signals, power supply, etc.).

[0050] The video data transmission unit 200 includes a serial data encoder 202 and a serial data decoder 201. The serial data encoder 202 encodes the MIPI CSI-2 video data transmitted by the miniature high-definition imaging device into a GMSL2 serial data stream, and transmits it to the serial data decoder 201 via an electric slip ring 300. The serial data decoder 201 decodes the received GMSL2 serial data stream into MIPI CSI-2 video data and transmits it to the data acquisition device DAQ. Through the encoding and decoding process, the system achieves lossless transmission of video data, avoiding data loss or distortion during transmission. Simultaneously, this data format conversion improves the compatibility and flexibility of data transmission, enabling the system to adapt to different models of miniature high-definition imaging devices and data acquisition devices.

[0051] The follower rotation unit 100 monitors whether the MIPI CSI-2 video data cable is rotating, measures and calculates the required rotation angle, and controls the synchronous motor to rotate synchronously to prevent the video data cable from getting tangled. The follower rotation unit 100 not only effectively solves the problem of video data cable tangling, but also improves the stability and reliability of the system.

[0052] The rotating part 100 includes an angle sensor 103, a synchronous motor 101, and a synchronous motor drive controller 102. The angle sensor 103 is used to monitor the deflection angle of the video data line in real time. The synchronous motor 101 rotates according to the instructions of the synchronous motor drive controller 102 to release the rotational torque on the video transmission line.

[0053] like Figure 2 , Figure 3 and Figure 4As shown, the low-torque, low-noise slip ring system based on a miniature high-definition imaging device also includes a housing 600. A follower rotation unit 100, a video data transmission unit 200, and an slip ring 300 are fixed to the housing 600. A first circuit board 400 is connected to the top of the slip ring 300. A synchronous motor drive controller 102 and a serial data decoder 201 are fixed to the first circuit board 400. A second circuit board 500 is fixedly connected above the video data transmission unit 200. An angle sensor 103 is fixed to the center of the bottom of the second circuit board 500, and a serial data encoder 202 is fixed to the top of the second circuit board 500. The housing 600 serves as the support and protection structure for the entire system, providing a stable mounting platform and ensuring that the internal components are protected from interference and damage from the external environment.

[0054] like Figure 2 , Figure 3 and Figure 5 As shown, the low-torque, low-noise slip ring system based on the miniature high-definition imaging device also includes a free-rotating part 700, which is fixed to the bottom inside the housing 600. The free-rotating part 700 includes a fixing plate 701, which is fixed to the bottom of the housing 600. A base 702 is fixedly connected to the top of the fixing plate 701. A magnetizing shaft 703 is rotatably connected to the base 702 through a bearing. A rotating lever arm 704 is fixedly connected to the bottom of the outer surface of the magnetizing shaft 703. A magnet 705 is connected to the top of the magnetizing shaft 703. An angle sensor 103 is located above the magnet 705.

[0055] Angle sensor 103 is a magnetic rotation position sensor used to measure the absolute angle of the diameter on the magnetized shaft 703. When the MIPI CSI-2 video data cable deflects, the deflection torque is transmitted to the freely rotating magnetized shaft 703 through the rotating lever arm 704, causing the magnet 705 to rotate. Angle sensor 103 monitors the deflection angle in real time, enabling the system to monitor the deflection angle of the video data cable in real time and accurately, and to follow the rotation synchronously through the synchronous motor 101, effectively avoiding the problem of data cable tangling.

[0056] like Figure 3 and Figure 6 As shown, the slip ring 300 has a fixed part and a rotatable part. The rotatable part is fixedly fitted with a large gear 301, and the output end of the synchronous motor 101 is fixedly fitted with a small gear 1011. The teeth of the large gear 301 mesh with the teeth of the small gear 1011. The synchronous motor 101 drives the rotatable part of the slip ring 300 to rotate through gear transmission. The synchronous motor 101 rotates synchronously, effectively avoiding the problem of data cable tangling.

[0057] like Figure 2 and Figure 3As shown, a bracket is fixedly connected to the top of the housing 600, and a terminal block 800 is fixedly connected to the middle of the bracket, which makes it easier for the system to connect to external devices and transmit data.

[0058] like Figure 7 As shown, after the device is powered on, the initial angle needs to be configured on the PC. This angle serves as the default angle value for the control system. After configuration, the device will monitor the deflection angle in real time and control the synchronous motor 101 to rotate and correct the offset angle. By configuring the initial angle on the PC, the system's reference value can be flexibly adjusted according to actual needs, improving the system's flexibility and adaptability. At the same time, this step also provides an accurate reference for deflection angle monitoring and correction.

[0059] like Figure 8 As shown, after the device is powered on, the serial data encoder 202 and serial data decoder 201 are automatically initialized. After initialization, the serial data encoder 202 waits for the MIPI CSI-2 video data stream. When the serial data encoder 202 receives the MIPI CSI-2 video data stream, it encodes the data into a GMSL serial data stream and transmits it to the serial data decoder 201 via coaxial cable. The serial data decoder 201 decodes the GMSL serial data into a MIPI CSI-2 video data stream and transmits it to the data acquisition device (DAQ). By automatically initializing the serial data encoder 202 and serial data decoder 201, the stability and accuracy of the video data during transmission can be ensured. At the same time, the application of GMSL serial data transmission technology also improves the speed and capacity of data transmission, meeting the real-time transmission requirements of high-resolution video data.

[0060] like Figure 9 As shown, the control system determines the deflection angle and direction. When the deflection angle exceeds the deflection threshold, the synchronous motor 101 rotates, and the deflection angle is read in real time during rotation. When the deflection angle is less than the deviation threshold, the synchronous motor 101 stops rotating and waits for the next trigger; the rotational torque on the video transmission line is released, achieving the purpose of following the rotation. By monitoring the deflection angle in real time and driving the synchronous motor 101 for correction, the problem of video data cable tangling can be effectively avoided. At the same time, it can also make precise adjustments based on the real-time feedback value of the deflection angle, ensuring the accuracy and stability of the correction action. In addition, it improves the automation and intelligence level of the system and reduces the need for manual intervention.

[0061] like Figure 10As shown, the MIPI CSI-2 video data stream transmission channel is unidirectional. The serial data encoder 202 receives the video data transmitted by the miniature high-definition imaging device and serially encodes the video data. The data is then transmitted to the serial data decoder 201 via the coaxial cable in the slip ring 300. The serial data decoder 201 decodes the serial data stream into a MIPI CSI-2 video data stream and sends it out. When the angle sensor 103 detects that the video data line is deflected, it sends a signal to the synchronous motor drive controller 102. The synchronous motor drive controller 102 then controls the synchronous motor 101 to rotate, thereby releasing the rotational torque on the video transmission line. During this process, the slip ring 300, as the data transmission channel, maintains stable electrical and optical signal transmission, thus effectively avoiding the problem of data line tangling.

[0062] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-torque, low-noise slip ring system based on a miniature high-definition imaging device, characterized in that... ,include: An electric slip ring, used for GMSL2 serial data transmission, has one 6G high-frequency channel and 16 low-frequency circuit channels; The video data transmission unit includes a serial data encoder and a serial data decoder, wherein: The serial data encoder is used to encode the MIPI CSI-2 video data transmitted by the miniature high-definition imaging device into a GMSL2 serial data stream, and transmit it to the serial data decoder through an electric slip ring. The serial data decoder is used to decode the received GMSL2 serial data stream into MIPI CSI-2 video data and transmit it to the data acquisition device. The rotating part monitors whether the MIPI CSI-2 video data cable is rotating, measures and calculates the required rotation angle, and controls the synchronous motor to rotate synchronously to prevent the video data cable from getting tangled.

2. The low-torque, low-noise slip ring system based on a miniature high-definition imaging device according to claim 1, characterized in that: The following rotation unit includes an angle sensor, a synchronous motor, and a synchronous motor drive controller. The angle sensor is used to monitor the deflection angle of the video data line in real time. The synchronous motor rotates according to the instructions of the synchronous motor drive controller to release the rotational torque on the video transmission line.

3. The low-torque, low-noise slip ring system based on a miniature high-definition imaging device according to claim 2, characterized in that, It also includes a housing, the following rotation part, the video data transmission part and the electric slip ring are fixed in the housing, the top of the electric slip ring is connected to a first circuit board, the top of the video data transmission part is fixedly connected to a second circuit board, the angle sensor is fixed in the middle of the bottom of the second circuit board, and the serial data encoder is fixed in the top of the second circuit board.

4. The low-torque, low-noise slip ring system based on a miniature high-definition imaging device according to claim 3, characterized in that, It also includes a free-rotating part, which is fixed to the bottom inside the housing; The free-rotating part includes a fixed plate, which is fixed to the bottom of the housing. A base is fixedly connected to the top of the fixed plate. A magnetizing shaft is rotatably connected to the base through a bearing. A rotating lever arm is fixedly connected to the bottom of the outer surface of the magnetizing shaft. A magnet is connected to the top of the magnetizing shaft.

5. The low-torque, low-noise slip ring system based on a miniature high-definition imaging device according to claim 4, characterized in that: The angle sensor is a magnetic rotation position sensor used to measure the absolute angle of the diameter on the magnetization shaft. When the mipicsi-2 video data cable deflects, the deflection torque is transmitted to the freely rotating magnetization shaft through the rotation lever arm, causing the magnet to rotate. The angle sensor monitors the deflection angle in real time.

6. The low-torque, low-noise slip ring system based on a miniature high-definition imaging device according to claim 5, characterized in that: The slip ring has a fixed part and a rotatable part. A large gear is fixedly fitted on the rotatable part, and a small gear is fixedly fitted on the output end of the synchronous motor. The teeth of the large gear mesh with the teeth of the small gear. The synchronous motor drives the rotatable part of the slip ring to rotate through gear transmission.

7. The low-torque, low-noise slip ring system based on a miniature high-definition imaging device according to claim 3, characterized in that: A bracket is fixedly connected to the top of the housing, and a terminal block is fixedly connected to the middle of the bracket.

8. A low-torque, low-noise slip ring method based on a miniature high-definition imaging device, characterized in that, Includes the following steps: a) Initialize the serial data encoder and serial data decoder; b) After initialization is complete, the serial data encoder will wait for the MIPI CSI-2 video data stream transmitted by the miniature high-definition imaging device; c) The serial data encoder receives the MIPI CSI-2 video data stream and encodes it into a GMSL2 serial data stream; d) Transmit the GMSL2 serial data stream to the serial data decoder; e) The serial data decoder decodes the GMSL2 serial data stream into MIPI CSI-2 video data and transmits it to the data acquisition device; f) The rotating part monitors the deflection angle of the MIPI CSI-2 video data cable and controls the synchronous motor to rotate as needed to prevent the video data cable from getting tangled.

9. The low-torque, low-noise slip ring method based on a miniature high-definition imaging device according to claim 8, characterized in that: In step f), the rotating part monitors the deflection angle of the video data line in real time through the angle sensor. When the deflection angle exceeds the preset threshold, the synchronous motor is controlled to rotate to release the rotational torque on the video transmission line. When the deflection angle is less than the preset threshold, the rotation stops.

10. The low-torque, low-noise slip ring method based on a miniature high-definition imaging device according to claim 8, characterized in that: It also includes the step of configuring the initial angle on the PC, which serves as the default angle value for the control system and is used for subsequent deflection angle monitoring and correction.

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