Post by julia002 on Jan 7, 2013 1:49:23 GMT -5
All Online connections won't be the same, as different ISP services provides various amounts of service and quality. You'll find three primary factors that determine the caliber of an online connection for video transmission: latency, packet loss, and available bandwidth. As latency will probably be covered on p. 82, let’s take a look at packet loss and bandwidth and also the methods readily available for testing. Packet loss is the place individual TCP outdoor IP camera data packets get “lost” throughout their travel from a single place to another on the network ip camera. Packets could be corrupted during transmission, particularly online, as well as the network outdoor wireless camera switches down the path will discard those packets which can be defective. Packet loss might be tested while using ping -t test from your Command line in Windows.
After typing this command and pressing enter, the testing computer will initiate the ping test, but rather of only sending four packets, the ping -t test sends packets continually until it truly is stopped by simultaneously pressing the control and c key. This test must be run at the least thirty seconds. A lengthier test, say one to three minutes, provides a statistically more accurate test. If the test shows anywhere of packet loss, there can be some issue with cabling, connectors, network ip camera congestion, or electromagnetic interference which is causing LAN communication problems.
High percentages of packet loss, above 5 percent, will usually degrade the high quality and/or viewing fps (fps) rate of any network ip camera video transmission. If employing a JPEG TCP transmitting device, high packet loss can cause slower viewing fps, as being the lost packets has to be retransmitted. UDP transmitted video may display “blank” chapters of images or other issues if you find excessive packet loss involving the transmitter and receiver within the network ip camera or Internet. It’s remember that packet loss problems over the web could possibly be temporary or sporadic as ISPs dynamically manage their plenty of Internet data traffic. There are a variety of handy tools to work with when troubleshooting a unique Web connection. One website, www.ipcameraland.com, comes with a wide selection of Online connections tests. After establishing your free account (and this can be free for limited services or upgraded for just a charge), users can operate a Line Quality test to look at the caliber of their Web connection. Running the queue Quality test typically takes about ten minutes. Available bandwidth will have an effect on the number of data packets which can be transmitted coming from a network ip camera video device, as well as the variety of packets which can be received by the remote viewing computer on the network ip camera and/or Internet. Bandwidth is commonly characterized in bps, for example kbps (kilobits) and Mbps (megabits per second).
After typing this command and pressing enter, the testing computer will initiate the ping test, but rather of only sending four packets, the ping -t test sends packets continually until it truly is stopped by simultaneously pressing the control and c key. This test must be run at the least thirty seconds. A lengthier test, say one to three minutes, provides a statistically more accurate test. If the test shows anywhere of packet loss, there can be some issue with cabling, connectors, network ip camera congestion, or electromagnetic interference which is causing LAN communication problems.
High percentages of packet loss, above 5 percent, will usually degrade the high quality and/or viewing fps (fps) rate of any network ip camera video transmission. If employing a JPEG TCP transmitting device, high packet loss can cause slower viewing fps, as being the lost packets has to be retransmitted. UDP transmitted video may display “blank” chapters of images or other issues if you find excessive packet loss involving the transmitter and receiver within the network ip camera or Internet. It’s remember that packet loss problems over the web could possibly be temporary or sporadic as ISPs dynamically manage their plenty of Internet data traffic. There are a variety of handy tools to work with when troubleshooting a unique Web connection. One website, www.ipcameraland.com, comes with a wide selection of Online connections tests. After establishing your free account (and this can be free for limited services or upgraded for just a charge), users can operate a Line Quality test to look at the caliber of their Web connection. Running the queue Quality test typically takes about ten minutes. Available bandwidth will have an effect on the number of data packets which can be transmitted coming from a network ip camera video device, as well as the variety of packets which can be received by the remote viewing computer on the network ip camera and/or Internet. Bandwidth is commonly characterized in bps, for example kbps (kilobits) and Mbps (megabits per second).