CN201361422Y - Edge ball recognition device - Google Patents
Edge ball recognition device Download PDFInfo
- Publication number
- CN201361422Y CN201361422Y CNU2009200174845U CN200920017484U CN201361422Y CN 201361422 Y CN201361422 Y CN 201361422Y CN U2009200174845 U CNU2009200174845 U CN U2009200174845U CN 200920017484 U CN200920017484 U CN 200920017484U CN 201361422 Y CN201361422 Y CN 201361422Y
- Authority
- CN
- China
- Prior art keywords
- thin threads
- vibration transducer
- edge
- recognition device
- alarm circuit
- 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.)
- Expired - Fee Related
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Abstract
An edge ball recognition device belongs to monitoring devices, which mainly solves the problem that judges may make errors by recognizing edge balls with naked eye. The edge ball recognition device is characterized by comprising thin threads, a vibration transducer and an alarm circuit, wherein the thin threads have the same length as that of upper edges on the left side and the right side of a pingpong table-board, the two ends thereof are respectively fixed on two end points of the edge, and the thin threads are connected with a signal receiving end of the vibration transducer, the alarm circuit is connected with the signal transmitting end of the vibration transducer, and is controlled by the vibration transducer. When in use, the thin threads are well fixed on the upper edges on the left side and the right side of the pingpong table-board, the vibration transducer and the alarm circuit are installed on the lateral face of the pingpong table-board corresponding to the side where the thin threads are located, once generating an edge ball in the batting process of athletes, a ball can touch the thin threads, the thin threads can vibrate, and the vibration transducer can receive vibration signals and send out relative instructions to direct the alarm circuit to operate, thereby helping judges to make fair judgment.
Description
Technical field
The utility model relates to a kind of monitoring equipment, specifically a kind of edge ball recognition device.
Background technology
In table tennis, the time regular meeting edge ball appears because the movement velocity of ball is very fast and the limitation of judge's vision, can not make comparatively reasonable judgment sometimes, thereby can bring discontented on the mood, normally the carrying out of influence match to the sportsman.
The utility model content
The purpose of this utility model is to provide a kind of edge ball recognition device, and this device can the accurate recognition edge ball.
The technical scheme in the invention for solving the technical problem is: a kind of edge ball recognition device, it is characterized in that, and form by a fine rule, a vibrating sensor and a warning circuit; The superposed rib of the described fine rule and the court left and right sides is isometric, two ends are separately fixed on two end points of rib, fine rule links to each other with the signal receiving end of vibrating sensor, and warning circuit links to each other with the signal transmitting terminal of vibrating sensor and controlled by vibrating sensor.
The beneficial effects of the utility model are: fix fine rule respectively on the superposed rib in the left and right sides of table tennis table, when edge ball occurring, club runs on the fine rule, fine rule produces vibration, vibration signal can be passed to warning circuit after vibrating sensor is handled, warning circuit is reported to the police, and can help to judge reasonable judgment, avoids cheating.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 fine rule, 2 vibrating sensors, 3 warning circuits.
The specific embodiment
As shown in Figure 1.A kind of edge ball recognition device is made up of a fine rule 1, a vibrating sensor 2 and a warning circuit 3; Described fine rule 1 is isometric with the superposed rib in the court left and right sides, two ends are separately fixed on two end points of rib, fine rule 1 links to each other with the signal receiving end of vibrating sensor 2, and warning circuit 3 links to each other with the signal transmitting terminal of vibrating sensor 2 and controlled by vibrating sensor 2.Can sound when the actuating unit in the warning circuit 3 is reported to the police, also can emit beam.
During use, to fix fine rule 1 respectively on the superposed rib in the left and right sides of table tennis table, vibrating sensor 2 and warning circuit 3 are installed in the side of the table tennis table of corresponding fine rule 1 side of living in, the sportsman plays ball in the process in case there is ball to be close to, fine rule 1 is run into by club makes fine rule 1 vibration, vibrating sensor 2 receives vibration signal just can send corresponding instruction, 3 actions of indication warning circuit, the actuating unit of warning circuit 3 just can send alarm signal, spectators also can see during warning circuit 3 actions, help judge's reasonable judgment, avoid cheating, safeguard the justice of motion, fairness.
Claims (1)
1, a kind of edge ball recognition device is characterized in that, is made up of a fine rule, a vibrating sensor and a warning circuit; The superposed rib of the described fine rule and the court left and right sides is isometric, two ends are separately fixed on two end points of rib, fine rule links to each other with the signal receiving end of vibrating sensor, and warning circuit links to each other with the signal transmitting terminal of vibrating sensor and controlled by vibrating sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200174845U CN201361422Y (en) | 2009-01-09 | 2009-01-09 | Edge ball recognition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200174845U CN201361422Y (en) | 2009-01-09 | 2009-01-09 | Edge ball recognition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201361422Y true CN201361422Y (en) | 2009-12-16 |
Family
ID=41472082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200174845U Expired - Fee Related CN201361422Y (en) | 2009-01-09 | 2009-01-09 | Edge ball recognition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201361422Y (en) |
-
2009
- 2009-01-09 CN CNU2009200174845U patent/CN201361422Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20110109 |