Factory video can help control operations, maintenance, repairs, training, and factory operations to reduce downtime, and Ethernet with video bandwidth is a key tool. Unlike security applications, industrial video can save a lot of money for the factory, including:
â– Knowledge Storage â– Expert Optimization â– Quick Repair â– Problem Diagnosis Now that every piece of equipment that implements these functions is available to you, but in addition to the camera, you start looking for something new, such as:
■Applicable network infrastructure, whether it is wired or wireless ■Security clearance facilities, can handle external bi-directional video and other data streams through the factory network when needed ■How to view: Man-machine interface required on the machine (HMI), portable screens, or HMI glasses ■Forecasting, Reasonable Investment, and Process At the Rockwell Automation Conference in McCormick Place in Chicago in November 2007, at least two types of video industrial Ethernet were available in the “factory†application. A local video application on the Rockwell Connected Visualizer with plug-in camera and resulting video running on the HMI. It can operate as a high-speed motion control application on the same Ethernet-based local network protocol (EtherNet/IP).
The other is demonstrated at an adjacent Cisco booth, allowing users to watch live Internet Protocol (IP) video and control over the screen in real time, beyond 1,600 miles, which shows how experts perform security clearance and remote machine troubleshooting . Cisco's enabling technologies include the ASA 5500 Series of Adaptive Security Appliances that integrate "world-class firewall, integrated communications (audio/video) security capabilities, SSL and Ipsec VPN, plug-in protection (IPS), and security services". Dan Knight, Cisco's industrial and manufacturing solutions manager, said: "A lot of people are looking for similar equipment, enhanced services and remote engineering support." These capabilities can accelerate configuration, program changes, and startup, reducing downtime.
At the time of this article’s publication, Cisco’s system was not yet available on the Internet, but control company Opto 22 had previously released an Internet-based control connectivity solution to the public. Using it, people can easily control their home’s lights and car. There are also a lot of video and video-video connections online, both in manufacturing and general. Visit the “Online text, video†section for more information.
Adding video to Ethernet-based control systems is novel to some extent because Ethernet cameras and displays have only recently emerged. Peter Wood, vice president of engineering at GarrettCom, said that traditional fieldbus protocols do not support video. He added: "This is due to bandwidth. If the device has to transmit more than two videos (from video cameras or stored video), then you need at least 100 megabit Ethernet. Devices that support multicast can save bandwidth. â€
According to Eddie Lee, product marketing manager of the Americas Industrial Network at MOXA Technologies, the network requirements for industrial video and the industrial Ethernet control system are no different. He also mentioned:
â– It is best to use management switches: because they can handle multipoint communications and can be configured for different VLANs â– Different bandwidth requirements: depending on the size of the mount (number of cameras, video quality and resolution, how many frames per second), the most Good use of Gigabit bandwidth.
â– Video decoders can save money: Since many factory equipment still use analog cameras, industrial video decoders (which can also be used as video servers) are a cost-effective way to load existing analog (coaxial) video networks. On Ethernet, there is no need to use IP cameras instead of analog products. Lee recommends using industrial-grade video servers in an ever-changing environment. Ira Sharp, smart product marketing specialist for INTERFACE wireless products from Phoenix Contact, said that in many industrial applications, video surveillance cannot use cables to transmit signals back to the central station to monitor and recording. Sharp claims that the best wireless technology for video surveillance is 802.11, or wireless Ethernet. The IEEE's three related standards are 802.11 a/b/g, supporting 54 Mbps transmission speed, which is sufficient for most industrial applications. However, it is not enough for high definition (HD) video.
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