Signal data receiving terminal for data recovery without reference clock and receiving method thereof

Abstract

The invention discloses a signal data receiving terminal for data recovery without a reference clock and a receiving method of the signal data receiving terminal, and relates to the technical field of clock data recovery. And the inner side of the fixing frame is fixedly connected with a terminal body which is used for receiving external data and is embedded into the clock body to recover the precision of the clock body. According to the signal data receiving terminal for data recovery without the reference clock and the receiving method of the signal data receiving terminal, external data are received through the terminal body, the terminal body exchanges timestamps, counteracts transmission delay and calculates clock skew through two-way communication, and the local clock frequency is adjusted through feedback control of the received signals, so that the data recovery efficiency is improved. When the terminal body starts to receive external data, the deformation metal sheet can pull the receiving antenna to move towards the outer side, the receiving antenna extends out of the interior of the terminal body to better receive the external data, and subsequent data recovery of a non-reference clock is facilitated.

Description

Technical Field

[0001] This invention relates to the field of clock data recovery technology, specifically to a signal data receiving terminal and its receiving method for non-reference clock data recovery. Background Technology

[0002] A "referenceless clock" is an independent clock that does not rely on an external time reference source (such as an atomic clock, GPS signal, or Network Time Protocol NTP). Its core characteristic is autonomous operation. It usually refers to the lack of a unified, high-precision clock reference in the system, which may lead to time asynchrony between devices, resulting in data transmission errors, system performance degradation, and other problems. Therefore, it is necessary to recover its clock data.

[0003] Prior art 1 (Chinese Patent No. CN114826539B, Publication Date: 2024-04-19) discloses a clock data recovery device and method without a reference clock. This device includes a clock data recovery circuit, an oscillation circuit, and a processor. The clock data recovery circuit synchronizes a first clock signal based on a data signal at a first frequency during a first time period. The oscillation circuit outputs an oscillating clock signal based on the first clock signal. The frequency of the oscillating clock signal is substantially the same as the frequency of the first clock signal. The processor oversamples the data signal during a second time period to generate an analog preparatory signal. The analog preparatory signal conforms to a second frequency of the data signal during the second time period. The clock data recovery circuit synchronizes a second clock signal based on the analog preparatory signal. Before synchronizing the second clock signal, the clock data recovery circuit maintains the output of the first clock signal while synchronizing with the oscillating clock signal. Prior art 2 (Chinese Patent No. CN119834797A, Publication Date: 2025-04-15) discloses a clock data recovery device and method without a reference clock, relating to the field of electronic technology. The reference-free clock data recovery device includes: a linear phase detector for performing phase detection processing on the received four-level pulse amplitude modulation data and outputting a phase detection signal voltage; a frequency detector for performing frequency detection processing on the received phase detection voltage signal and outputting a frequency detection signal voltage; a first voltage-to-current converter for outputting a pulse signal current; a loop filter for converting the pulse signal current into a control voltage; an inductor-capacitor oscillator for converting the control voltage into a quadrature clock signal; a self-biased multiphase clock generator for outputting a multiphase clock signal based on the quadrature clock signal; and a startup circuit for discharging the control voltage to zero upon power-on, making the quadrature clock signal the initial frequency, so as to realize the traversal search of the control voltage.

[0004] While existing technologies can recover data without a reference clock, the signal data receiving terminal cannot dissipate heat during the recovery process. Since the data terminal is mostly located inside the clock, temperature changes may affect the clock stability and the accuracy of data recovery during the data recovery process without a reference clock, which has certain limitations.

[0005] Therefore, we propose a signal data receiving terminal and its receiving method for data recovery without a reference clock, in order to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a signal data receiving terminal and its receiving method for data recovery without a reference clock, in order to solve the problems in the current market where the signal data receiving terminals mentioned in the background art cannot dissipate heat, and the data terminals are mostly located inside the clock. In the process of data recovery without a reference clock, temperature changes may affect the stability of the clock and the accuracy of data recovery, which has certain limitations.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a signal data receiving terminal and its receiving method for data recovery without reference clock, comprising a clock body, a fixed frame fixedly connected inside the clock body, and a terminal body for receiving external data and embedding it into the clock body to restore its accuracy fixedly connected inside the fixed frame, a ventilation groove for heat dissipation opened on the side of the terminal body, and a receiving antenna slidably nested inside the terminal body, a moving mechanism provided between the inner end of the receiving antenna and the interior of the terminal body, the moving mechanism adjusting the position of the receiving antenna by the deformation of the deformable metal sheet contained therein, a protective plate provided outside the ventilation groove, and a protective mechanism provided between the side of the protective plate and the interior of the terminal body, the protective mechanism cleaning the ventilation groove under the action of the moving mechanism.

[0008] Preferably, the moving mechanism includes a rotating cylinder, which is rotatably connected inside the terminal body. A twisted rod is threaded inside the rotating cylinder, and the outer end of the twisted rod is fixedly connected to the inner end of the receiving antenna. A deformable metal sheet is fixedly connected to the upper side of the receiving antenna.

[0009] Preferably, an electromagnetic block corresponding to the position of the deformable metal sheet is fixedly connected inside the terminal body, and the deformable metal sheet is arranged in an arched structure at its center. The receiving antenna forms a sliding structure with the terminal body through the deformation of the deformable metal sheet.

[0010] Preferably, a limiting plate is fixedly connected to the inner side of the terminal body, and a movable plate is slidably connected inside the limiting plate. A striking block is fixedly connected to the movable plate near the inner wall of the terminal body, and a second spring is fixedly connected between the inner side of the movable plate and the inner wall of the terminal body.

[0011] Preferably, a cam is fixedly connected to the outer side of the rotating cylinder, and the cam corresponds one-to-one with the position of the moving plate, and the moving plate forms a sliding structure with the limiting plate through the cam.

[0012] Preferably, the protective mechanism includes a push rod, which is fixedly connected to the receiving antenna and slides through the outer side of the terminal body. A connecting plate is fixedly connected to the outer end of the terminal body, and the connecting plate is fixedly connected to the outer side of the protective plate.

[0013] Preferably, the terminal body has a fixed box fixedly connected to both the upper and lower sides inside, and a sliding rod is slidably connected inside the fixed box. The outer end of the sliding rod is fixedly connected to the protective plate, and a first magnet is fixedly connected to the sliding rod at equal intervals.

[0014] Preferably, a movable block is slidably connected inside the fixed box, and a slider is fixedly connected to the side of the movable block. The slider is slidably connected to the side of the fixed box, and a cleaning plate is fixedly connected to the side of the slider. A second magnet opposite to the magnetic pole of the first magnet is fixedly connected to the upper side of the movable block, and a first spring is fixedly connected between the lower end of the movable block and the inside of the fixed box.

[0015] A method for receiving signals in a signal data receiving terminal for data recovery without a reference clock includes the following steps:

[0016] S1. The terminal body receives external data. The terminal body exchanges timestamps through bidirectional communication to offset transmission delay, calculates clock deviation, and adjusts the local clock frequency through feedback control to synchronize it with the clock phase of the received signal. When the terminal body starts receiving external data, the deformable metal sheet can pull the receiving antenna to move outward, so that the receiving antenna extends out of the terminal body, thereby receiving external data better and facilitating subsequent data recovery for data without a reference clock.

[0017] S2. As the receiving antenna moves outward, the rotating cylinder, through its threaded connection with the twisted rod, drives the cam to rotate synchronously, thereby pressing against the moving plate. This causes the moving plate to move the striking block, repeatedly striking the side of the terminal body and alerting staff that data can be received normally.

[0018] S3. When the receiving antenna moves outward, the protective plate moves outward simultaneously without blocking the ventilation slot. The heat generated by the terminal body during transmission can be discharged outward through the ventilation slot, avoiding the phenomenon that heat accumulation affects the accuracy of data recovery. When the protective plate moves outward, it can simultaneously drive the sliding rod to move. At this time, the second magnet can cause the moving block to move downward under the action of magnetism, thereby driving the cleaning plate to clean the ventilation slot back and forth, avoiding the phenomenon that dust adhesion affects the subsequent heat dissipation effect.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) When the terminal body starts to receive external data, the deformable metal sheet is arched and deformed by the magnetic adsorption of the electromagnetic block, so that the receiving antenna extends out of the terminal body and receives external data better, which facilitates subsequent data recovery without reference clock.

[0021] (2) The outward movement of the receiving antenna drives the twist rod to move synchronously. At this time, the rotating cylinder will drive the cam to rotate, and the moving plate will drive the striking block to move and strike the side of the terminal body. The user can judge whether the receiving antenna has moved into place by the sound of the striking, so as to avoid the phenomenon that the user cannot determine whether the signal can be accurately received because he cannot observe the accurate position of the receiving antenna.

[0022] (3) Driven by the elastic force of the second spring, the moving plate can cooperate with the cam to reciprocate the tapping of the side of the terminal body and remind the staff that the data can be received normally.

[0023] (4) By moving the receiving antenna outward, the protective plate moves outward synchronously without blocking the ventilation slot. The heat generated by the terminal body during transmission can be discharged outward through the ventilation slot, avoiding the phenomenon of heat accumulation affecting the accuracy of data recovery.

[0024] (5) As the protective plate moves outward, the sliding rod that moves outward can drive the cleaning plate to clean the ventilation groove repeatedly through the magnetic attraction between the first magnet and the second magnet, thus avoiding the phenomenon that the adhesion of dust will affect the subsequent heat dissipation effect. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the clock body of the present invention;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the terminal body of the present invention;

[0028] Figure 4 This is a three-dimensional cross-sectional view of the present invention;

[0029] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0030] Figure 6 This is a three-dimensional structural diagram of the fixing box of the present invention;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the receiving antenna of the present invention;

[0032] Figure 8 This is a schematic diagram of the three-dimensional structure of the cleaning plate of the present invention;

[0033] Figure 9 This is a schematic diagram of the three-dimensional structure of the sliding rod of the present invention;

[0034] Figure 10 This is a schematic diagram of the three-dimensional structure of the movable plate of the present invention.

[0035] In the diagram: 1. Clock body; 2. Fixing frame; 3. Terminal body; 4. Protective plate; 5. Receiving antenna; 6. Connecting plate; 7. Push rod; 8. Electromagnetic block; 9. Deformable metal sheet; 10. Fixing box; 11. Rotating cylinder; 12. Twisted rod; 13. Cam; 14. Ventilation groove; 15. Slider; 16. First spring; 17. Sliding rod; 18. First magnet; 19. Second magnet; 20. Cleaning plate; 21. Moving block; 22. Limiting plate; 23. Second spring; 24. Striking block; 25. Moving plate. Detailed Implementation

[0036] 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.

[0037] Example 1: As Figures 1-5 and Figure 7The present invention provides the following technical solution: a signal data receiving terminal and its receiving method for restoring reference clock data, which discloses a moving mechanism that allows adjustment of the position of the receiving antenna 5 to improve signal reception. A fixing frame 2 is fixedly connected inside the clock body 1, and a terminal body 3 for receiving external data and embedding itself into the clock body 1 to restore its accuracy is fixedly connected to the inner side of the fixing frame 2. A ventilation groove 14 for heat dissipation is provided on the side of the terminal body 3, and a receiving antenna 5 is slidably nested inside the terminal body 3. A moving mechanism is provided between the inner end of the receiving antenna 5 and the interior of the terminal body 3. The moving mechanism adjusts the position of the receiving antenna 5 by deforming the deformable metal sheet 9 contained therein. The moving mechanism includes a rotating cylinder 11, which is rotatably connected inside the terminal body 3. A twisted rod 12 is threaded inside the rotating cylinder 11, and the outer end of the twisted rod 12 is fixedly connected to the inner end of the receiving antenna 5. The deformable metal sheet 9 is fixedly connected to the upper side of the receiving antenna 5. An electromagnetic block 8 corresponding to the position of the deformable metal sheet 9 is fixedly connected inside the terminal body 3. The deformable metal sheet 9 has an arched structure at its center. The receiving antenna 5 forms a sliding structure with the terminal body 3 through the deformation of the deformable metal sheet 9.

[0038] The terminal body 3 receives external data and exchanges timestamps via two-way wired or wireless communication to offset transmission delays, calculate clock deviations, and adjust the local clock frequency through feedback control to synchronize it with the clock phase of the received signal. When the terminal body 3 starts receiving external data, it can simultaneously supply power to the electromagnetic block 8. At this time, the deformable metal sheet 9 is attracted by the magnetic attraction of the electromagnetic block 8 and can arch and deform to one side of the electromagnetic block 8. The deformed metal sheet 9 can pull the receiving antenna 5 to move outward, so that the receiving antenna 5 extends appropriately into the terminal body 3, thereby receiving external data better and facilitating subsequent data recovery without a reference clock.

[0039] Example 2: Figure 4 , Figure 6 , Figure 8 and Figure 9The present invention provides the following technical solution: a signal data receiving terminal and its receiving method for data recovery without a reference clock, which discloses a protective mechanism to improve the heat dissipation performance of the terminal body 3: a protective plate 4 is provided on the outer side of the ventilation slot 14, and a protective mechanism is provided between the side of the protective plate 4 and the interior of the terminal body 3. The protective mechanism, driven by a moving mechanism, performs dust removal on the ventilation slot 14. The protective mechanism includes a push rod 7, which is fixedly connected to the receiving antenna 5 and slides through the outer side of the terminal body 3. A connecting plate 6 is fixedly connected to the outer end of the terminal body 3, and the connecting plate 6 is fixedly connected to the outer side of the protective plate 4. The terminal body 3 has fixed boxes 10 on both the upper and lower sides inside. A sliding rod 17 is slidably connected inside the fixed box 10, and the outer end of the sliding rod 17 is fixedly connected to the protective plate 4. At the same time, first magnets 18 are fixedly connected at equal intervals on the sliding rod 17. A moving block 21 is slidably connected inside the fixed box 10, and a slider 15 is fixedly connected to the side of the moving block 21. The slider 15 is slidably connected to the side of the fixed box 10. A cleaning plate 20 is fixedly connected to the side of the slider 15. A second magnet 19 with the opposite magnetic pole to the first magnet 18 is fixedly connected to the upper side of the moving block 21, and a first spring 16 is fixedly connected between the lower end of the moving block 21 and the inside of the fixed box 10.

[0040] When the receiving antenna 5 moves outward, the connecting plate 6 can be pushed outward by the push rod 7, thereby causing the protective plate 4 to move outward in sync. This prevents the ventilation slot 14 from being blocked, allowing the heat generated by the terminal body 3 during transmission to be discharged outward through the ventilation slot 14, thus avoiding the phenomenon of heat accumulation affecting the accuracy of data recovery. As the protective plate 4 moves outward, the sliding rod 17 can be driven to slide outward along the fixed box 10. The outward-moving sliding rod 17 allows the first magnet 18 and the second magnet 19 to make indirect contact. At this time, the second magnet 19 can cause the moving block 21 to move downward under the magnetic force. When the second magnet 19 is no longer magnetic, the moving block 21 can be reset under the elastic force of the first spring 16, thereby driving the cleaning plate 20 to repeatedly clean the ventilation slot 14, preventing the adhesion of dust from affecting the subsequent heat dissipation effect.

[0041] Example 3: Figure 6 , Figure 7 and Figure 10The present invention provides the following technical solution: a signal data receiving terminal and its receiving method for data recovery without reference clock, which discloses a tapping block 24. The tapping action of the tapping block 24 can be used to determine whether the receiving antenna 5 has moved into place by the tapping sound. A limiting plate 22 is fixedly connected to the inner side of the terminal body 3, and a moving plate 25 is slidably connected inside the limiting plate 22. The tapping block 24 is fixedly connected to the side of the moving plate 25 near the inner wall of the terminal body 3. A second spring 23 is fixedly connected between the inner side of the moving plate 25 and the inner wall of the terminal body 3. A cam 13 is fixedly connected to the outer side of the rotating cylinder 11, and the cam 13 corresponds one-to-one with the position of the moving plate 25. The moving plate 25 forms a sliding structure with the limiting plate 22 through the cam 13.

[0042] As the receiving antenna 5 moves outward, it simultaneously drives the twisted rod 12 outward. At this time, the rotating cylinder 11 rotates synchronously under the threaded connection with the twisted rod 12. The rotating cylinder 11 drives the cam 13 to rotate synchronously, thereby abutting and squeezing the moving plate 25. This causes the moving plate 25 to drive the striking block 24 to move and strike the side of the terminal body 3. Driven by the elastic force of the second spring 23, the moving plate 25 can cooperate with the cam 13 to achieve reciprocating striking of the side of the terminal body 3, and remind the staff that the data can be received normally. Users can judge whether the receiving antenna 5 has moved into place by the sound of the striking, avoiding the phenomenon that users cannot determine whether the signal can be accurately received because they cannot observe the accurate position of the receiving antenna 5.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A signal data receiving terminal for restoring referenceless clock data, comprising a clock body (1), wherein a fixing frame (2) is fixedly connected inside the clock body (1), and a terminal body (3) for receiving external data and embedding it into the clock body (1) to restore its accuracy is fixedly connected to the inner side of the fixing frame (2), characterized in that, The terminal body (3) has a ventilation groove (14) for heat dissipation on its side, and a receiving antenna (5) is nested and slidably arranged inside the terminal body (3). A moving mechanism is provided between the inner end of the receiving antenna (5) and the inside of the terminal body (3). The moving mechanism adjusts the position of the receiving antenna (5) by deforming the deformable metal sheet (9) contained therein. A protective plate (4) is provided on the outside of the ventilation groove (14), and a protective mechanism is provided between the side of the protective plate (4) and the inside of the terminal body (3). The protective mechanism cleans the ventilation groove (14) under the drive of the moving mechanism.

2. The signal data receiving terminal for data recovery without a reference clock according to claim 1, characterized in that: The moving mechanism includes a rotating cylinder (11), which is rotatably connected to the inside of the terminal body (3). A twisted rod (12) is threadedly connected inside the rotating cylinder (11), and the outer end of the twisted rod (12) is fixedly connected to the inner end of the receiving antenna (5). A deformable metal sheet (9) is fixedly connected to the upper side of the receiving antenna (5), and the other end of the deformable metal sheet (9) is fixed inside the terminal body (3).

3. A signal data receiving terminal for data recovery without a reference clock according to claim 2, characterized in that: The terminal body (3) is internally fixedly connected to an electromagnetic block (8) corresponding to the position of the deformable metal sheet (9), and the center of the deformable metal sheet (9) is set in an arched structure. The receiving antenna (5) forms a sliding structure with the terminal body (3) through the deformation of the deformable metal sheet (9).

4. A signal data receiving terminal for data recovery without a reference clock according to claim 2, characterized in that: A limiting plate (22) is fixedly connected to the inner side of the terminal body (3), and a moving plate (25) is slidably connected inside the limiting plate (22). A knocking block (24) is fixedly connected to the side of the moving plate (25) near the inner wall of the terminal body (3), and a second spring (23) is fixedly connected between the inner side of the moving plate (25) and the inner wall of the terminal body (3).

5. A signal data receiving terminal for data recovery without a reference clock according to claim 4, characterized in that: A cam (13) is fixedly connected to the outer side of the rotating cylinder (11), and the cam (13) corresponds to the position of the moving plate (25). The moving plate (25) forms a sliding structure with the limiting plate (22) through the cam (13).

6. A signal data receiving terminal for data recovery without a reference clock according to claim 2, characterized in that: The protective mechanism includes a push rod (7), which is fixedly connected to the receiving antenna (5). The push rod (7) is slidably disposed on the outside of the terminal body (3). A connecting plate (6) is fixedly connected to the outer end of the terminal body (3), and the connecting plate (6) is fixedly connected to the outside of the protective plate (4).

7. The signal data receiving terminal for referenceless clock data recovery according to claim 6 is characterized in that: The terminal body (3) has a fixed box (10) fixedly connected to both the upper and lower sides inside, and a sliding rod (17) is slidably connected inside the fixed box (10). The outer end of the sliding rod (17) is fixedly connected to the protective plate (4), and a first magnet (18) is fixedly connected at equal intervals on the sliding rod (17).

8. A signal data receiving terminal for data recovery without a reference clock according to claim 7, characterized in that: The fixed box (10) is slidably connected to the inside of a movable block (21), and a slider (15) is fixedly connected to the side of the movable block (21). The slider (15) is slidably connected to the side of the fixed box (10), and a cleaning plate (20) is fixedly connected to the side of the slider (15). A second magnet (19) opposite to the magnetic pole of the first magnet (18) is fixedly connected to the upper side of the movable block (21), and a first spring (16) is fixedly connected between the lower end of the movable block (21) and the inside of the fixed box (10).

9. A receiving method for a signal data receiving terminal for data recovery without a reference clock, characterized in that: Includes the following steps: S1. The terminal body (3) receives external data. The terminal body (3) exchanges timestamps through bidirectional communication (wired or wireless) to offset transmission delay, calculate clock deviation, and adjust the local clock frequency through feedback control to synchronize it with the clock phase of the received signal. When the terminal body (3) starts to receive external data, the deformable metal sheet (9) can pull the receiving antenna (5) to move outward, so that the receiving antenna (5) extends out of the terminal body (3), thereby receiving external data better and facilitating subsequent data recovery without a reference clock. S2. While the receiving antenna (5) moves outward, the rotating cylinder (11) can drive the cam (13) to rotate synchronously under the threaded connection with the twisted rod (12), thereby abutting and squeezing the moving plate (25), so that the moving plate (25) drives the striking block (24) to move and reciprocate to strike the side of the terminal body (3), and remind the staff that the data can be received normally. S3. When the receiving antenna (5) moves outward, the protective plate (4) moves outward synchronously without blocking the ventilation slot (14). The heat generated by the terminal body (3) during transmission can be discharged outward through the ventilation slot (14) to avoid the phenomenon of heat accumulation affecting the accuracy of data recovery. When the protective plate (4) moves outward, it can drive the sliding rod (17) to move synchronously. At this time, the second magnet (19) can drive the moving block (21) to move downward under the action of magnetism, thereby driving the cleaning plate (20) to clean the ventilation slot (14) repeatedly to avoid the phenomenon of dust adhesion affecting the subsequent heat dissipation effect.

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