CN109639949A - A kind of high speed cloth ball-handling - Google Patents
A kind of high speed cloth ball-handling Download PDFInfo
- Publication number
- CN109639949A CN109639949A CN201811627891.8A CN201811627891A CN109639949A CN 109639949 A CN109639949 A CN 109639949A CN 201811627891 A CN201811627891 A CN 201811627891A CN 109639949 A CN109639949 A CN 109639949A
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- Prior art keywords
- handling
- operation chip
- high speed
- ball
- chip
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- 239000004744 fabric Substances 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 239000011093 chipboard Substances 0.000 claims abstract description 11
- 230000010354 integration Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000011840 criminal investigation Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses a kind of ball-handlings of high speed cloth, including processor, it further include AI operation chip, video acquisition sensor and chip board, AI operation chip and video acquisition sensor integration are on the chip board, the connection of the input terminal of the video acquisition sensor and processor, processor is connect with AI operation chip, further, the radiator to radiate to AI operation chip is provided in the cloth ball-handling, the radiator includes hollow sealing center, the heat conducting pipe being nested in sealing center, the oil pump of the non-electrically conductive liquid and driving non-electrically conductive liquid flowing that are set in heat conducting pipe；The portability of cloth ball-handling and the load capacity of AI operation chip are improved, is reduced costs.
Description
Technical field
The present invention relates to picture pick-up device technical fields more particularly to a kind of high speed cloth to control ball.
Background technique
Current monitoring system can be realized substantially carries out data analysis and acquisition according to video pictures, such as is handing over
The type of vehicle, the information such as license plate number, the age of pedestrian, gender, dress can be precisely identified in logical monitoring.More and more criminal investigation hands
High-tech gimmick is all used in section, we, which can often see, allows criminal without the intelligent recognition security system being stealthy, in fact
One of the direction of exactly current development in science and technology.
Traditional cloth ball-handling is more complicated, needs video acquisition sensor, algorithm processor, memory, data-interface and calls out
Awake interface etc., video acquisition sensor reading video data pass through the video information mould waken up in algorithm processor and memory
Plate is compared, it is successful then be arranged timing and by wake up Interface Controller rear end equipment power initiation or triggering interface interrupt thing
Part, rear end equipment continue to send during startup the checking command comprising unique identification, random number and digital signature, such as timing
It has not timed out and digital signature is correct, then algorithm processor is common by clocking value, video information feature comparison result and random number
It generates digital signature and sends back to rear end equipment, rear end equipment can continue to the video information characteristic of request encryption, voluntarily
Decryption is compared.
When AI operation chip carries out operation to these data, one side AI operation chip is arranged to video acquisition sensor
Two independent modules, identifying system stability is poor, convenience is not high, expensive, another aspect AI operation chip need into
The very high load of row carries out operation, and temperature is excessively high when AI operation chip is due to operation, causes system failure and other data degradations.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of ball-handlings of high speed cloth, improve cloth ball-handling
Portability reduces costs.
A kind of high speed cloth ball-handling proposed by the present invention, including processor, further include AI operation chip, video acquisition sensor
And chip board；
AI operation chip and video acquisition sensor integration are on the chip board, the video acquisition sensor and processing
The input terminal of device connects, and processor is connect with AI operation chip.
Further, the radiator for being provided with detection device in the cloth ball-handling and radiating to AI operation chip,
The chip board and the processor are set in the detection device.
Further, the radiator includes hollow sealing center, is nested in the heat conducting pipe sealed in center, described
Non-electrically conductive liquid is driven by oil pump to be flowed, and oil pump is fixed in the detection device.
Further, sealing center includes upper center and the lower center with the setting of upper center symmetric position, and upper center is under
Circulatory flow is formed between center, part heat conducting pipe is nested in circulatory flow, and the both ends of heat conducting pipe are connect with oil pump.
Further, the non-electrically conductive liquid is α liquid or β liquid.
Further, the cloth ball-handling further includes the holder seat of honour and the pedestal for fixing the holder seat of honour, the holder master
Seat be it is U-shaped, the lower part of the holder seat of honour is connect with pedestal, and the opposite two sides in holder seat of honour top offer rotating hole, described close
Symmetrical rotary shaft is provided on envelope center opposite flank, the sealing center is set in rotating hole by rotary sleeve.
Further, the shell of the detection device includes preceding seal closure and rear seal closure, preceding seal closure and rear seal closure
It is tightly connected by sealing center.
Further, fan is provided on the holder seat of honour, the air outlet of fan is arranged against the sealing center, and fan is solid
Due in the U-shaped groove on the holder seat of honour.
Further, the temperature sensor for detecting AI operation chip temperature, AI operation is arranged in AI operation chip-side
Chip periphery is provided with shield, offers two nozzles on the shield relatively, and heat conducting pipe is arranged across two nozzles.
Further, processor 7 is connect with AI operation chip 8 by jtag interface.
The advantages of a kind of high speed cloth provided by the invention is controlled ball is: a kind of high speed provided in structure of the invention is deployed to ensure effective monitoring and control of illegal activities
Ball, by AI operation chip and video acquisition sensor integration on same chip plate so that data transmission is stablized, return data without
Delay improves the portability of cloth ball-handling, reduces costs；It is dry that the shield of the operation chip periphery AI setting can shield electric signal
It disturbs, so that, not by the interference of other related extraneous factors, improving the operation quality of AI operation chip when AI operation chip operation
And efficiency；Radiator carries out real-time radiating treatment to AI operation chip, improves the load operational capability of AI operation chip, keeps away
Exempt to cause system failure or the defect of other data degradations because AI operation chip temperature is excessively high；Heat conducting pipe is from AI operation chip list
Face is passed through, and further increases the heat dissipation to AI operation chip, temperature sensor is defeated by the temperature information of AI operation chip in real time
It is sent to processor, and then processor control oil pump works, to carry out radiating treatment to AI operation chip.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of high speed cloth ball-handling of the present invention；
Fig. 2 is the structural schematic diagram of present invention sealing center；
Heat transfer flows to schematic diagram when Fig. 3 is present invention heat dissipation；
Non-electrically conductive liquid flows to schematic diagram when Fig. 4 is present invention heat dissipation；
Fig. 5 is the graph of relation of AI operation chip temperature and pump speed of the present invention；
Fig. 6 is the connection schematic diagram of AI operation chip and processor of the present invention；
Wherein, 1, preceding seal closure, 2, rear seal closure, 3, sealing center, 4, the holder seat of honour, 5, pedestal, 6, acquisition sensor,
7, processor, 8, AI operation chip, 9, heat conducting pipe, 10, fan, 11, oil pump, 12, temperature sensor, 31, upper center, 32, under
Center.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Referring to Fig.1, a kind of high speed cloth ball-handling proposed by the present invention, including processor, further include AI operation chip 8, video
Acquire sensor and chip board；AI operation chip 8 and video acquisition sensor integration are on the chip board, the video acquisition
The connection of the input terminal of sensor and processor.
As shown in fig. 6, the model Movidius Myriad 2MA2450 of AI operation chip 8, the model of processor 7
Hi3516Av100 is thought in Huawei sea, and AI operation chip 8 is connect with processor 7 by jtag interface, and processor 7 will need to compare meter
The information of calculation is transferred in AI operation chip 8 by jtag interface and is handled, and AI operation chip 8 passes through operation result data
Jtag interface passes processor 7 back, and AI operation chip 8 will have been handled through jtag interface access process device 7.
AI operation chip 8 carries out correlation ratio to meter to the video information that video acquisition sensor conveys on same chip plate
It calculates, one is convenient so that data transmission is stablized, on the other hand the non-delay purpose for realizing real time monitoring of return data is improved and deployed to ensure effective monitoring and control of illegal activities
The portability of ball, reduces costs.
Further, AI operation chip 8 at runtime, can generate heat, if heat is excessively high, may will cause AI operation
The operation load capacity of chip 8 is impacted, therefore is provided with the heat dissipation radiated to AI operation chip 8 in cloth ball-handling
Device.Radiator is arranged so that the operation load capacity of AI operation chip 8 improves.
The radiator includes hollow sealing center 3, is nested in the heat conducting pipe 9 sealed in center 3 and is set to and lead
Non-electrically conductive liquid in heat pipe 9, the non-electrically conductive liquid is driven by oil pump to be flowed,.
The heat conducting pipe 9 being embedded in sealing center 3 passes through from AI operation chip 8, and then non-electrically conductive liquid is to AI operation
Chip 8 carries out stronger heat dissipation, and processor 7 controls to adjust oil pump 11, and then adjusts the flow velocity of non-electrically conductive liquid, to AI operation
The temperature of chip 8 carries out corresponding continued down processing, wherein as shown in figure 5, the flow velocity of non-electrically conductive liquid is with AI operation core
The temperature of piece 8 increases and increases.
The non-electrically conductive liquid is α liquid or β liquid.Due to mainly cooling down to AI operation chip 8, if using conductive
Property liquid, it is possible to can make because leakage or causing the leaky of AI operation chip 8 with the indirect conduction of heat conducting pipe
It obtains AI operation chip 8 and receives damage.And thermally conductive member α liquid or β liquid belong to non-electrically conductive liquid, and more liquid.
As shown in Fig. 2, lower center 32 of the sealing center 3 including upper center 31 and with the setting of upper 31 symmetric position of center, on
Circulatory flow is formed between center 31 and lower center 32, part heat conducting pipe 9 is nested in circulatory flow,
The both ends of heat conducting pipe 9 are connect with oil pump 11, and heat conducting pipe 9 is from oil pump, into 8 surface of AI operation chip is crossed, then
By sealing the circulatory flow of center 3, it is eventually returned to oil pump, forms a circulation loop.
Heat conducting pipe 9 to form the circuit that circulates of non-electrically conductive liquid by connecting with oil pump 11, and heat conducting pipe 9 passes through in sealing
Frame 3 forms cooling circuit around cloth ball-handling main body, improves the whole cooling performance of cloth ball-handling, and heat conducting pipe 9 is nested in center 31
In the formed circulatory flow of lower center 32, on the one hand installing and uninstalling convenient for heat conducting pipe 9, on the other hand seals center 3 and adopts
With the preferable aluminium alloy of thermal conductivity, the heat dissipation of heat conducting pipe 9 is improved, so that the heat that the non-electrically conductive liquid in heat conducting pipe 9 is absorbed
Amount can quickly disperse, and improve heat dissipation effect.
Further, the cloth ball-handling further includes detection device, the holder seat of honour 4 and the pedestal for fixing the holder seat of honour 4
5, the chip board is set in the detection device.The shell of the detection device includes preceding seal closure 1 and rear seal closure 2,
Preceding seal closure 1 and rear seal closure 2 are tightly connected by sealing center 3.
The holder seat of honour 4 be it is U-shaped, the lower part of the holder seat of honour 4 is connect with pedestal 5, and the opposite two sides in 4 top of the holder seat of honour are opened
Equipped with rotating hole, symmetrical rotary shaft is provided on 3 opposite flank of sealing center, the sealing center 3 passes through rotary shaft
It being sheathed in rotating hole, rotary shaft can be rotated around rotating hole, while the shell of detection device is tightly connected by sealing center 3,
Therefore when rotary shaft is rotated around rotating hole, detection device realizes rotation, and the video acquisition sensor in detection device can acquire
To more video data, the detection range of cloth ball-handling is expanded, while when rotary shaft is rotated around rotating hole, sealing center 3
With detection device synchronous rotary, when realizing that detection device rotates to different angle, sealing center 3 is able to achieve preferable to cloth ball-handling
Heat dissipation.
The setting of seal closure is so that the detection device waterproof that cloth is controlled ball, improves cloth ball-handling and adapt to the scope of application.
Meanwhile fan 10 is provided on the holder seat of honour 4, the air outlet of fan 10 is arranged against the sealing center 3,
Fan 10 is fixed in the U-shaped groove on the holder seat of honour 4.
Fan 10 can by existing rotating device (such as: rotation mechanism, crank rotating device or holder
Deng) be fixed, realize that fan 10 can be rotated with the rotation of sealing center 3, realize 10 pairs of sealing center 3 heat dissipations of fan
When, fan 10 can be adjusted to realize and preferably radiate to sealing center 3 according to the rotation of sealing center 3 in real time.Rotating device
On be provided with tracker, by tracker track sealing center 3 movement, and then realize fan rotating device with sealing center 3
Rotation and rotate.Simultaneously fan rotating device can be the turntable being able to rotate, the bracket being able to rotate or other be able to achieve
The device that fan 10 is rotated with the rotation of sealing center 3.
As shown in Figure 1, the temperature sensor 12, AI for detecting 8 temperature of AI operation chip is arranged in 8 side of AI operation chip
8 periphery of operation chip is provided with shield, offers two nozzles on the shield relatively, and heat conducting pipe 9 is arranged across two nozzles.
Shield is stainless steel outer cover.
The temperature of 12 energy real-time detection AI operation chip 8 of temperature sensor, and temperature parameter is transported in processor 7,
Realize adjustment of the processor 7 to non-electrically conductive liquid flow velocity.The shield of AI operation chip 8 uses SMT encapsulation welding technique, cost
Cheap, stability is splendid, and shield not only has the interference for shielding other signals to AI operation chip 8, improves AI operation core
The operation stability of piece 8, and seal the effect that circulates of the non-electrically conductive liquid on AI operation chip 8.
The radiation processes of AI operation chip in cloth ball-handling: the video information of acquisition is delivered to processor by acquisition sensor 6
7, after the information for needing comparing calculation is sent to the progress high load capacity operation comparison of AI operation chip 8 by processor 7, by operation result
Data pass processor 7 back, temperature sensor 12 reads the temperature information of AI operation chip 8, and temperature sensor 12 will be read
The temperature information of core AI operation chip 8 is sent to processor 7, and processor 7 adjusts oil pump 11 according to the received temperature information of institute
Work, oil pump 11 adjust fan 10 in non-conductive liquid circulation conveying in heat conducting pipe 9 to the heat conducting pipe 9 sealed in center 3
The angle of blowing direction and sealing center 3, so that 10 pairs of sealing centers 3 of fan carry out large area heat dissipation.
As shown in Figures 3 and 4, the flowing that AI operation chip 8 is recycled by non-conductive liquid in heat conducting pipe 9, by AI operation
Heat caused by chip 8 is taken away by heat transfer, and will be radiated by sealing center 3 and fan 10, avoids AI operation
The problem of load capacity caused by the temperature of chip 8 is excessively high declines.
As shown in figure 5, the revolving speed of oil pump 11 increases with the raising of 8 temperature of AI operation chip, i.e., AI operation chip 8 due to
When operation causes own temperature to increase, increase the revolving speed of oil pump 11, so that the non-electrically conductive liquid flow velocity in heat conducting pipe 9 increases, by
In non-electrically conductive liquid flowing so that the temperature on AI operation chip 8 is pulled away by heat exchange, therefore non-electrically conductive liquid flow velocity
Increase the heat dissipation effect for improving AI operation chip 8.
The cooling control method of AI operation chip in the ball-handling of high speed cloth, includes the following steps S1 to S4:
S1: the desired temperature of setting AI operation chip 8, and obtain the current running temperature values of AI operation chip 8；
S2: judge whether running temperature values are equal to desired temperature；
If so, into S3；
If it is not, then entering S4；
S3: it then works on；
S4: the revolving speed of oil pump 11 is then adjusted.
Further, for S4: the revolving speed of oil pump 11 is then adjusted, includes the following steps S41 to S43:
S41: judge whether running temperature values are greater than desired temperature；
If so, into S42；
If so, into S43；
S42: the revolving speed of oil pump 11 is improved；
S43: the revolving speed of oil pump 11 is reduced.
It is found that can be with set temperature setting value on AI operation chip 8 by step S1 to S4, while passing through temperature sensor
The temperature of 12 real-time detection AI operation chips 8 passes through running temperature values and temperature as the running temperature values of AI operation chip 8
The comparison of setting value can adjust the revolving speed of oil pump 11 in real time to realize the preferably operation loading condition of AI operation chip 8.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of ball-handling of high speed cloth, including processor, which is characterized in that further include AI operation chip, video acquisition sensor and
Chip board；
The AI operation chip and the video acquisition sensor integration on the chip board, the video acquisition sensor with
The input terminal of the processor connects, and the processor is connect with the AI operation chip.
2. high speed cloth according to claim 1 ball-handling, which is characterized in that be provided with detection device and right in the cloth ball-handling
The radiator that the AI operation chip radiates, the chip board and the processor are set in the detection device.
3. high speed cloth ball-handling according to claim 2, which is characterized in that the radiator includes in hollow sealing
Frame, the heat conducting pipe being nested in the sealing center and the non-electrically conductive liquid being set in the heat conducting pipe, the non-conductive liquid
Body is driven by oil pump to be flowed, and oil pump is fixed in the detection device.
4. high speed cloth according to claim 3 ball-handling, which is characterized in that the sealing center include upper center and with it is upper in
The lower center of frame symmetric position setting, forms circulatory flow, part heat conducting pipe is nested in recycle stream between upper center and lower center
In road, the both ends of heat conducting pipe are connect with oil pump.
5. high speed cloth ball-handling according to claim 3, which is characterized in that the non-electrically conductive liquid is α liquid or β liquid.
6. high speed cloth ball-handling according to claim 3, which is characterized in that the cloth ball-handling further includes the holder seat of honour and is used for
The pedestal of the fixed holder seat of honour；
The holder seat of honour be it is U-shaped, the lower part of the holder seat of honour is connect with pedestal, and the opposite two sides in holder seat of honour top offer
Rotating hole is provided with symmetrical rotary shaft on the sealing center opposite flank, and the sealing center is set to by rotary sleeve
In rotating hole.
7. high speed cloth ball-handling according to claim 6, which is characterized in that the shell of the detection device includes preceding seal closure
With rear seal closure, preceding seal closure and rear seal closure are tightly connected by the sealing center.
8. high speed cloth ball-handling according to claim 6, which is characterized in that be provided with fan, fan on the holder seat of honour
Air outlet be arranged against the sealing center, fan is fixed in the U-shaped groove on the holder seat of honour.
9. high speed cloth ball-handling according to claim 3, which is characterized in that the AI operation chip-side is arranged for detecting
The temperature sensor of AI operation chip temperature, the AI operation chip periphery are provided with shield, open relatively on the shield
Equipped with two nozzles, the heat conducting pipe is arranged across two nozzles.
10. -9 any high speed cloth ball-handling according to claim 1, which is characterized in that the processor and the AI operation
Chip is connected by jtag interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627891.8A CN109639949B (en) | 2018-12-28 | 2018-12-28 | High-speed cloth accuse ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627891.8A CN109639949B (en) | 2018-12-28 | 2018-12-28 | High-speed cloth accuse ball |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109639949A true CN109639949A (en) | 2019-04-16 |
| CN109639949B CN109639949B (en) | 2024-01-16 |
Family
ID=66079123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811627891.8A Active CN109639949B (en) | 2018-12-28 | 2018-12-28 | High-speed cloth accuse ball |
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| Country | Link |
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| CN (1) | CN109639949B (en) |
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