CN107694074A - A kind of method of position when table tennis net device and identification table tennis pass through net - Google Patents
A kind of method of position when table tennis net device and identification table tennis pass through net Download PDFInfo
- Publication number
- CN107694074A CN107694074A CN201711072474.7A CN201711072474A CN107694074A CN 107694074 A CN107694074 A CN 107694074A CN 201711072474 A CN201711072474 A CN 201711072474A CN 107694074 A CN107694074 A CN 107694074A
- Authority
- CN
- China
- Prior art keywords
- net
- table tennis
- sensing data
- light shading
- shading type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
- A63B67/04—Table games physically beneficial for the human body, modelled on outdoor sports, e.g. table tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0605—Decision makers and devices using detection means facilitating arbitration
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/16—Table tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/50—Force related parameters
- A63B2220/56—Pressure
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
- A63B2220/805—Optical or opto-electronic sensors
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
- A63B2220/83—Special sensors, transducers or devices therefor characterised by the position of the sensor
- A63B2220/833—Sensors arranged on the exercise apparatus or sports implement
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A kind of method of position when passing through net the invention discloses table tennis net device and identification table tennis.Its device by the table tennis net of deployment pressure sensor, light shading type photoelectric sensing equipment and identification table tennis by net position server group into；Multigroup light shading type photoelectric sensor is disposed above table tennis net, multiple pressure sensors are affixed one's name in net face, when table tennis passes through or touched net above net, corresponding sensors for data, it is then forwarded to server, server collects the pressure data of pressure sensor on net face, and table tennis touch the net position is identified according to wire side region division；Server collects the voltage data of light shading type photoelectric sensing equipment, and according to numbering for the photophore and light receiving device blocked by table tennis, identification table tennis is by the position above net.The present invention solves the problems, such as that the Internet of Things scheme of table tennis net can not simply and effectively identify that table tennis passes through net top position or net-fault position.
Description
Technical field
The invention belongs to smart table tennis Motion Technology field, is rattled more particularly to a kind of table tennis net device and identification
The method of position when ball warp crosses net.
Background technology
The Internet of Things modification scheme of table tennis net mainly has two kinds at present, one kind be installation infrared equipment detect table tennis from
Elapsed time and position above net, it is data when can not obtain rattling touch the net the shortcomings that the program；Another kind is peace
The equipment such as video camera shooting table tennis video or image are filled, then analyzes to obtain table tennis data, is meter the shortcomings that the program
It is low to calculate complexity height, efficiency.There is presently no simply and effectively identify table tennis by net top position or net-fault position
Technical scheme, the method that position when a kind of table tennis net device and identification table tennis pass through net is proposed for this.
The content of the invention
The technical problems to be solved by the invention are that the Internet of Things scheme of table tennis net can not simply and effectively identify table tennis
It's the problem of net top position or net-fault position pasts ball warp, when proposing that a kind of table tennis net device and identification table tennis pass through net
The method of position.
The present invention applies light shading type photoelectric sensor and pressure sensor, and light shading type photoelectric sensor includes photophore, received
Light device and voltage generating circuit, light path, which is obscured by an object rear voltage generating circuit, between photophore and light receiving device can produce photoelectricity
Sensing data；Pressure sensor after object pressure by can obtain pressure sensing data.
Table tennis wire side, outfit light shading type photoelectric transfer of a kind of table tennis net device of the present invention by outfit pressure sensor
The net fix bar of sensor and identification table tennis by net position server group into.
It is equipped with the table tennis wire side of pressure sensor：Multiple pressure sensors are equipped with wire side, according to pressure sensor
Table tennis wire side is divided into multiple regions by position, and pressure sensor is located at the center in each region, and pressure sensor obtains pressure
Sensing data, then pressure sensing data are sent to identification table tennis to the server for passing through net position；
It is equipped with the net fix bar of light shading type photoelectric sensor：Net fix bar is distributed in net both ends and is connected with net
Connect, light shading type photoelectric sensor is equipped with net fix bar, the position of light shading type photoelectric sensor is higher than net top；Work as table tennis
When ball warp crosses light shading type photoelectric sensor, light shading type photoelectric sensor produces photoelectric sensing data, then by photoelectric sensing data
Send to identification table tennis and pass through the server of net position.
Identify that table tennis passes through the server of net position：Obtain the pressure sensing number of pressure sensor detection on net face
According to identification table tennis touch the net position；The photoelectric sensing data of light shading type photoelectric sensor detection are obtained, identification table tennis passes through ball
The position of online side.
A kind of table tennis net device of the present invention, as shown in figure 1, server abbreviation of the identification table tennis by net position
For server, dotted line with the arrow represents that signal sends server to.The pressure sensor being equipped with table tennis wire side obtains pressure
Power sensing data, is then forwarded to server；The light shading type photoelectric sensor being equipped with net fix bar produces voltage data, so
Voltage data is sent to server afterwards.
The method of position when a kind of identification table tennis based on above-mentioned table tennis net device passes through net, using following step
Suddenly：
Step 1, division table tennis wire side region and upper area and arrange parameter.
Table tennis wire side is divided into according to the M pressure sensor disposed on wire side by M region and numbered, M is just whole
Number, pressure sensor are located at the center in each region, and pressure sensor numbering is consistent with wire side zone number；According to net upper portion
N number of light shading type photoelectric sensor of administration is being divided into N number of region above net and number, and N is positive integer, light shading type photoelectric sensing
Device is located at the center in each region, and the numbering of light shading type photoelectric sensor is consistent with net upper area numbering；Set and judge table tennis
The threshold X of touch the net；Setting judge light shading type photoelectric sensor whether the voltage threshold Y blocked by table tennis；Data are set to adopt
Sample interval time T, time interval T are less than the Mean Time Between Replacement (count and obtain according to historical data) of table tennis impact bead table.
Step 2, obtain pressure sensing data and photoelectric sensing data.
The pressure sensor being deployed on wire side obtains pressure sensing data according to time interval T, then by pressure sensing
Data are sent to server, are deployed in the light shading type photoelectric sensor above table tennis net and are obtained photoelectric transfer according to time interval T
Feel data, then send photoelectric sensing data to server；The pressure sensing data for the same sampling instant that server obtains
Matrix x, photoelectric sensing data arrangement be arranged in rows into column matrix y.
Step 3, whether identification table tennis touches net and net-fault position.
When having in matrix x and an only pressure sensing data u>During X, then table tennis touch the net, pressure sensing data u are judged
The center in corresponding wire side region is table tennis touch the net position；Otherwise judge that table tennis is not touched net.
Whether step 4, identification table tennis pass through net and cross net position.
When having in matrix y and an only photoelectric sensing data v>During Y, then judge table tennis by net top, photoelectricity
The center of net upper area corresponding to sensing data v is table tennis by the position above net；Otherwise table tennis is judged
Ball is without net, return to step 2.
The table tennis drop point localization method flow chart of the present invention is as shown in Figure 2.
The method and system of the present invention this have the advantage that：
(1) table tennis net is divided into net face region and net upper area, not only effectively monitoring is touched net, can also be right
Whether table tennis, which crosses net, is effectively identified.
(2) light shading type photoelectric sensor and pressure sensor are used, can simply and effectively identify that table tennis passes through net
Position.
Brief description of the drawings
Fig. 1 is the table tennis net apparatus structure schematic diagram of the present invention；
Fig. 2 is the method flow diagram of position when the identification table tennis of the present invention passes through net；
Fig. 3 is the three-view diagram of the table tennis net device of the embodiment of the present invention；
Fig. 4 is table tennis wire side region and the numbering schematic diagram of net upper area of the embodiment of the present invention.
Embodiment
The preferred embodiment of the present invention is elaborated below.
The present invention applies light shading type photoelectric sensor and pressure sensor, and light shading type photoelectric sensor includes photophore, received
Light device and voltage generating circuit, light path, which is obscured by an object rear voltage generating circuit, between photophore and light receiving device can produce photoelectricity
Sensing data；Pressure sensor after object pressure by can obtain pressure sensing data.
Table tennis wire side, outfit light shading type photoelectric transfer of a kind of table tennis net device of the present invention by outfit pressure sensor
The net fix bar of sensor and identification table tennis by net position server group into.
It is equipped with the table tennis wire side of pressure sensor：Multiple pressure sensors are equipped with wire side, according to pressure sensor
Table tennis wire side is divided into multiple regions by position, and pressure sensor is located at the center in each region, and pressure sensor obtains pressure
Sensing data, then pressure sensing data are sent to identification table tennis to the server for passing through net position.In the present embodiment, table tennis
For the three-view diagram of pang net as shown in figure 3, label 11 represents table tennis wire side, label 12 represents net both ends fix bar, label 13
Pressure sensor is represented, with dark circles point identification, label 3 represents ping-pong table other parts.Uniformly 8 piezoelectricity of deployment are thin for wire side
Table tennis wire side is divided into 8 regions by film sensors, 8 piezoelectric film sensors, and each piezoelectric film sensor is located at each area
Domain center, the magnitude of voltage that each piezoelectric film sensor detects is sent to identification table tennis using existing Internet of Things communication means
By the server of net position.
It is equipped with the net fix bar of light shading type photoelectric sensor：Net fix bar is distributed in net both ends and is connected with net
Connect, light shading type photoelectric sensor is equipped with net fix bar, the position of light shading type photoelectric sensor is higher than net top；Work as table tennis
When ball warp crosses light shading type photoelectric sensor, light shading type photoelectric sensor produces photoelectric sensing data, then by photoelectric sensing data
Send to identification table tennis and pass through the server of net position.In the present embodiment, table tennis net three-view diagram is as shown in figure 3, label 2
Photoelectric sensor is represented, is identified with black rectangle.Relative disposition 3 is to luminous in two net fix bars that length is 50 centimetres
Device and light receiving device.When paired photophore and light receiving device are obscured by an object, detection circuit, which produces, blocks voltage (photoelectric sensing number
According to)；Setting judge light shading type photoelectric sensor whether the magnitude of voltage Y=3 millivolts (mV) blocked by table tennis.
Identify that table tennis passes through the server of net position：Obtain the pressure sensing number of pressure sensor detection on net face
According to identification table tennis touch the net position；The photoelectric sensing data of light shading type photoelectric sensor detection are obtained, identification table tennis passes through ball
The position of online side.In the present embodiment, the pressure sensor on photoelectric sensor and wire side above table tennis net
Distribution determines net upper area and the regional location and numbering in wire side region, obtains the pressure of pressure sensor detection on net face
Power sensing data, table tennis touch the net position is identified according to wire side region division；The detection of light shading type photoelectric sensor is obtained simultaneously
Photoelectric sensing data, according to the photophore and the numbering of light receiving device that are blocked by table tennis and position identification table tennis by net
Position when square.
The method of position when a kind of identification table tennis based on above-mentioned table tennis net device passes through net, using following step
Suddenly：
Step 1, division table tennis wire side region and upper area and arrange parameter.
Table tennis wire side is divided into according to the M pressure sensor disposed on wire side by M region and numbered, M is just whole
Number, pressure sensor are located at the center in each region, and pressure sensor numbering is consistent with wire side zone number；According to net upper portion
N number of light shading type photoelectric sensor of administration is being divided into N number of region above net and number, and N is positive integer, light shading type photoelectric sensing
Device is located at the center in each region, and the numbering of light shading type photoelectric sensor is consistent with net upper area numbering；Set and judge table tennis
The threshold X of touch the net；Setting judge light shading type photoelectric sensor whether the voltage threshold Y blocked by table tennis；Data are set to adopt
Sample interval time T, time interval T are less than the Mean Time Between Replacement (count and obtain according to historical data) of table tennis impact bead table.
In the present embodiment, wire side disposes 8 piezoelectric film sensors, i.e. M=8, wire side is divided into 8 regions, piezoelectric membrane sensing
Device is located at the center in each region, and each wire side region is numbered with Arabic numerals in sequence, as shown in Figure 4；Above table tennis net
3 pairs of light shading type photoelectric sensors are disposed, be i.e. N=3, are 3 strip regions, each pair photophore and receipts light by online region division
Device is located at the center in each region, and each online region is numbered with the English alphabet of small letter in sequence, as shown in Figure 4.Sampling is set
Interval time T=0.5 millisecond.Threshold X=1 millivolt (mV) for judging table tennis touch the net is set；Setting judges light shading type photoelectric transfer
Sensor whether the voltage threshold Y=3 millivolts (mV) blocked by table tennis.
Step 2, obtain pressure sensing data and photoelectric sensing data.
The pressure sensor being deployed on wire side obtains pressure sensing data according to time interval T, then by pressure sensing
Data are sent to server, are deployed in the light shading type photoelectric sensor above table tennis net and are obtained photoelectric transfer according to time interval T
Feel data, then send photoelectric sensing data to server；The pressure sensing data for the same sampling instant that server obtains
Matrix x, photoelectric sensing data arrangement be arranged in rows into column matrix y.In the present embodiment, the piezoelectric membrane being deployed on wire side senses
Device obtains voltage data according to time interval T, is then forwarded to server, the light shading type photoelectric transfer being deployed in above table tennis net
Sensor obtains voltage data according to time interval T, is then forwarded to server, is pressed on the wire side that server sampling instant obtains
8 voltage datas that conductive film sensor is sent rearrange matrix x=(0,0,0,0,0,0,0,0), and this sampling instant obtains
Table tennis net above light shading type photoelectric sensor send 3 photoelectric sensing data composition matrix y=(4,0,0)T, unit
For millivolt.
Step 3, whether identification table tennis touches net and net-fault position.
When having in matrix x and an only pressure sensing data u>During X, then table tennis touch the net, pressure sensing data u are judged
The center in corresponding wire side region is table tennis touch the net position；Otherwise judge that table tennis is not touched net.In the present embodiment, matrix
There is no voltage data u to meet u in x>X, then judge that table tennis is not touched net.
Whether step 4, identification table tennis pass through net and cross net position.
When having in matrix y and an only photoelectric sensing data v>During Y, then judge table tennis by net top, photoelectricity
The center of net upper area corresponding to sensing data v is table tennis by the position above net；Otherwise table tennis is judged
Ball is without net, return to step 2.In the present embodiment, have in matrix y and an only voltage data v=4mV, meet 4mV>
3mV, then judge table tennis by above net, online zone number is a corresponding to voltage data 4mV, then table tennis passes through ball
The position of online side is the center in numbering a regions.
Certainly, those of ordinary skill in the art is it should be appreciated that above example is intended merely to illustrate this hair
Bright, and limitation of the invention is not intended as, as long as within the scope of the invention, change, modification to above example are all
Protection scope of the present invention will be fallen into.
Claims (10)
1. a kind of table tennis net device, it is characterised in that by the table tennis wire side of outfit pressure sensor, be equipped with light shading type photoelectricity
The net fix bar of sensor and identification table tennis by net position server group into.
2. table tennis net device according to claim 1, it is equipped with the table tennis wire side of pressure sensor and is characterised by：
Multiple pressure sensors are equipped with wire side, table tennis wire side is divided into according to the position of pressure sensor by multiple regions, pressure
Sensor is located at the center in each region；Pressure sensor obtains pressure sensing data, then sends pressure sensing data to knowledge
Other table tennis passes through the server of net position.
3. table tennis net device according to claim 1, it is equipped with the spy of the net fix bar of light shading type photoelectric sensor
Sign is：Net fix bar is distributed in net both ends and is connected with net, and light shading type photoelectric sensing is equipped with net fix bar
Device, the position of light shading type photoelectric sensor are higher than net top；When table tennis passes through light shading type photoelectric sensor, light shading type light
Electric transducer produces photoelectric sensing data, then photoelectric sensing data are sent to identification table tennis to the service for passing through net position
Device.
4. table tennis net device according to claim 1, it identifies feature of the table tennis by the server of net position
It is：Obtain the pressure sensing data of pressure sensor detection on net face, identification table tennis touch the net position；Obtain light shading type light
The photoelectric sensing data of electric transducer detection, identification table tennis is by the position above net.
A kind of 5. method for identifying position when table tennis passes through net, it is characterised in that：
Step 1, division table tennis wire side region and upper area and arrange parameter；
Step 2, obtain pressure sensing data and photoelectric sensing data；
Step 3, whether identification table tennis touches net and net-fault position；
Whether step 4, identification table tennis pass through net and cross net position.
The method of position, its step 1 are characterised by when 6. identification table tennis according to claim 5 passes through net：Root
Table tennis wire side is divided into M region according to the M pressure sensor disposed on wire side and numbered, M is positive integer, pressure sensing
Device is located at the center in each region, and pressure sensor numbering is consistent with wire side zone number；N number of shading of deployment above net
Formula photoelectric sensor is being divided into N number of region above net and numbering, and N is positive integer, and light shading type photoelectric sensor is located at each area
The center in domain, the numbering of light shading type photoelectric sensor are consistent with net upper area numbering；The threshold for judging table tennis touch the net is set
Value X；Setting judge light shading type photoelectric sensor whether the voltage threshold Y blocked by table tennis；Sampling time interval T is set.
The method of position, its step 2 are characterised by when 7. identification table tennis according to claim 5 passes through net：Portion
The pressure sensor affixed one's name on wire side obtains pressure sensing data according to sampling time interval T, then sends out pressure sensing data
Server is delivered to, the light shading type photoelectric sensor above table tennis net is deployed in and obtains photoelectric sensing according to sampling time interval T
Data, then photoelectric sensing data are sent to server；The pressure sensing data row for the same sampling instant that server obtains
Row matrix x, photoelectric sensing data arrangement are arranged into column matrix y.
The method of position, its step 3 are characterised by when 8. identification table tennis according to claim 5 passes through net：When
Have in matrix x and an only pressure sensing data u>During X, then table tennis touch the net, wire side corresponding to pressure sensing data u are judged
The center in region is table tennis touch the net position；Otherwise judge that table tennis is not touched net.
The method of position, its step 4 are characterised by when 9. identification table tennis according to claim 6 passes through net：When
Have in matrix y and an only photoelectric sensing data v>During Y, then judge table tennis by net top, v pairs of photoelectric sensing data
The center for the net upper area answered is table tennis by the position above net；Otherwise judge table tennis without ball
Net, return to step 2.
The method of position when 10. identification table tennis according to claim 5 passes through net, it is characterised in that：Sampling time
The value for being spaced T is less than the average time interval of table tennis impact bead table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072474.7A CN107694074A (en) | 2017-11-03 | 2017-11-03 | A kind of method of position when table tennis net device and identification table tennis pass through net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072474.7A CN107694074A (en) | 2017-11-03 | 2017-11-03 | A kind of method of position when table tennis net device and identification table tennis pass through net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107694074A true CN107694074A (en) | 2018-02-16 |
Family
ID=61176725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711072474.7A Pending CN107694074A (en) | 2017-11-03 | 2017-11-03 | A kind of method of position when table tennis net device and identification table tennis pass through net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107694074A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7520827B1 (en) * | 2008-06-04 | 2009-04-21 | Charles Michael Esposito | Electronic table tennis |
| CN101912271A (en) * | 2010-07-19 | 2010-12-15 | 中国科学院深圳先进技术研究院 | System and method for displaying plantar pressure in real time |
| CN203001870U (en) * | 2012-12-28 | 2013-06-19 | 窦洪茵 | Training device for over-net height of table tennis ball |
| CN103785160A (en) * | 2014-01-28 | 2014-05-14 | 吴光勤 | Table tennis table touching sensor and table tennis competition judgment system |
| CN106512357A (en) * | 2016-12-05 | 2017-03-22 | 高元龙 | Intelligent table tennis judging device |
| CN106999752A (en) * | 2014-11-20 | 2017-08-01 | 友电子有限公司 | Ping-pong contest execution system including multiples impacts sensor and the ping-pong contest fraction display methods using the system |
-
2017
- 2017-11-03 CN CN201711072474.7A patent/CN107694074A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7520827B1 (en) * | 2008-06-04 | 2009-04-21 | Charles Michael Esposito | Electronic table tennis |
| CN101912271A (en) * | 2010-07-19 | 2010-12-15 | 中国科学院深圳先进技术研究院 | System and method for displaying plantar pressure in real time |
| CN203001870U (en) * | 2012-12-28 | 2013-06-19 | 窦洪茵 | Training device for over-net height of table tennis ball |
| CN103785160A (en) * | 2014-01-28 | 2014-05-14 | 吴光勤 | Table tennis table touching sensor and table tennis competition judgment system |
| CN106999752A (en) * | 2014-11-20 | 2017-08-01 | 友电子有限公司 | Ping-pong contest execution system including multiples impacts sensor and the ping-pong contest fraction display methods using the system |
| CN106512357A (en) * | 2016-12-05 | 2017-03-22 | 高元龙 | Intelligent table tennis judging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101151153B (en) | Printed object and a print monitoring system for inspection of same | |
| US20140064566A1 (en) | Heuristic-based approach for automatic payment gesture classification and detection | |
| CN106709521A (en) | Fire pre-warning method and fire pre-warning system based on convolution neural network and dynamic tracking | |
| EP1143709A3 (en) | Method and apparatus for testing image sensing devices | |
| CN104040311A (en) | System and method for temperature monitoring in a room | |
| CN107948585A (en) | Video recording labeling method, device and computer-readable recording medium | |
| US20110235896A1 (en) | Burr detecting apparatus and burr detection method thereof | |
| CN106485729A (en) | A kind of moving target detecting method based on mixed Gauss model | |
| CN107694074A (en) | A kind of method of position when table tennis net device and identification table tennis pass through net | |
| CN110084795A (en) | A kind of infrared image blind pixel detection method and system based on background | |
| CN104335245A (en) | Method and apparatus for measuring audience size for a digital sign | |
| CN111144260A (en) | Detection method, device and system of crossing gate | |
| CN107715424A (en) | A kind of device and method for identifying the normal impact bead table of table tennis and impingement position | |
| CN103077376B (en) | Method for distinguishing is known again based on the human body image in video image | |
| CN106874885B (en) | Crowd abnormity detection method based on energy level distribution change | |
| US20240169577A1 (en) | System for determining the shape of particles in motion using an event-based camera | |
| CN105787925B (en) | Push away the automatic testing method and system for sweeping type optical remote sensing load original image bad line | |
| CN107694062A (en) | A kind of judgement system and method for flying over table tennis before net and whether touching net | |
| CN103093273A (en) | Video people counting method based on body weight recognition | |
| CN107754286A (en) | A kind of table tennis system based on inertial navigation and sense of touch correction positioning | |
| KR20140042551A (en) | Method of extracting feature for human detection and apparatus for performing the same | |
| CN107670250A (en) | Table tennis judges whether that effectively service and ball move towards system and method after hitting table | |
| KR20110027929A (en) | Apparatus for sensing the location of an object on ascreen | |
| CN107715433A (en) | A kind of table tennis system that positioning is read based on active radio frequency label | |
| US6271836B1 (en) | Method of determining the pen velocity along a graphic tablet, and graphic tablet suitable for carrying out the method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |
|
| RJ01 | Rejection of invention patent application after publication |