Pandatennis1985
New User
Hi,
I read about the many problems in the forum and thought it might be useful to share my experience with you, which is after a difficult start positiv.
I bought 2 net devices and two line devices about 18months ago. Since then my son and friends and myself used the equipment in about 50 matches, most of them training matches. We do not use it for immediate line calls because other player have been disturbed by the signals and the calls were too often incorrect. During the match we use only the replay function for close calls, if both players are uncertain if the shot was in or out. This proofed to be very helpful to avoid disputes. Alex your mp4 is an example for this replay function.
To begin with we had problems with the system finding the court, but with the new software version it works very well. In general I recommend not to use automatically the newest software version but wait until the next is announce. In this way you can see which bugs he intends to remove. Alex, I believe your problems in the beginning with the new 3.0 netdevices were caused by the immature software.
We still have problems using the line devices. First it takes too much time to get them working and secondly I have until now not seen an improved accuracy.
The accuracy even without the line devices at good light conditions is high in the nineties. Although this is not sufficient for an automatic line calling it is an excellent basis for a professional match analysis with all relevant key performance indicators such as forced and unforced faults, points won at first or second service, points won on ad or deuce court, return points, or for rally ratio winner/faults, net attack direct point, average ball speed or net clearance etc. etc.. the list is really long. We wrote the match analysis based on excel 2019 with many macros and automated data import which now after one years work and a lot of testing works very well. It provides all necessary statistical data together with graphics, target setting, and you can replay any shot or sequence on a graphic or as a video. For example you select e. g. volley, stop or game points and you can watch the corresponding video sequence. We implemented also a zone model which allows a risk analysis and how in a rally a player used a chance for a net attack and if the attack was successful. My son works as a tennis trainer and plays with his team in tournament. Based on the results of the analysis he and his team have optimized their tactics successfully.
Is there anybody else who is doing a work like this?
I read about the many problems in the forum and thought it might be useful to share my experience with you, which is after a difficult start positiv.
I bought 2 net devices and two line devices about 18months ago. Since then my son and friends and myself used the equipment in about 50 matches, most of them training matches. We do not use it for immediate line calls because other player have been disturbed by the signals and the calls were too often incorrect. During the match we use only the replay function for close calls, if both players are uncertain if the shot was in or out. This proofed to be very helpful to avoid disputes. Alex your mp4 is an example for this replay function.
To begin with we had problems with the system finding the court, but with the new software version it works very well. In general I recommend not to use automatically the newest software version but wait until the next is announce. In this way you can see which bugs he intends to remove. Alex, I believe your problems in the beginning with the new 3.0 netdevices were caused by the immature software.
We still have problems using the line devices. First it takes too much time to get them working and secondly I have until now not seen an improved accuracy.
The accuracy even without the line devices at good light conditions is high in the nineties. Although this is not sufficient for an automatic line calling it is an excellent basis for a professional match analysis with all relevant key performance indicators such as forced and unforced faults, points won at first or second service, points won on ad or deuce court, return points, or for rally ratio winner/faults, net attack direct point, average ball speed or net clearance etc. etc.. the list is really long. We wrote the match analysis based on excel 2019 with many macros and automated data import which now after one years work and a lot of testing works very well. It provides all necessary statistical data together with graphics, target setting, and you can replay any shot or sequence on a graphic or as a video. For example you select e. g. volley, stop or game points and you can watch the corresponding video sequence. We implemented also a zone model which allows a risk analysis and how in a rally a player used a chance for a net attack and if the attack was successful. My son works as a tennis trainer and plays with his team in tournament. Based on the results of the analysis he and his team have optimized their tactics successfully.
Is there anybody else who is doing a work like this?