Use of the adapts function
Conventional control of the fan and valve program is the use of PID adjustment, but the adaptive algorithm can be better adjusted.
Siemens ' adaptive adjustment function adapts uses the following:
The following article for the network reprint, the original link address http://news.bjx.com.cn/html/20051028/52147.shtml:
Cybosoft announced that it has signed a long-term model-free adaptive (MFA) control software license agreement with Siemens Building technology company (Siemens Building Technologies, Inc.) in Buffalo Grove, Illinois State. Cybosoft's patented model-free adaptive control technology has been embedded in the Siemens Apogee Building automation system. It is estimated that Siemens will be shipping 100,000 new MFA control loops each year.
"Over the past more than 20 years, PID control based on ratios, integrals and differentials has become a recognized industry standard," said Mr. Kevin Osburn, executive vice president of building technology at Siemens. By collaborating with Cybosoft, we can now use its proven technology to provide an innovative solution that helps our customers improve the performance of their equipment. ”
Cybosoft president and CEO Dr. "This can be considered one of the most important events in the history of automatic control, because this is the first time that a general-purpose advanced Controller has replaced the PID controller on a large scale," said George Cheng. This agreement with Siemens is to realize our dream and mission to promote MFA as the next generation of mainstream automatic controller. ”
Model-Free Adaptive (mfa,model-free Adaptive) control, as its name implies, is an adaptive control method that does not need to establish a process model. In contrast, there is no advanced control technology that has all the features of MFA. As we all know, MFA solves all kinds of control problems, and engineers in the field of industrial control and equipment control constantly apply MFA to achieve the goal of improving quality, flexible production, environmental control and cost savings.
With the exclusive right to this technology, Siemens became the first and only provider of mainstream HVAC control systems for its customers based on MFA control solutions. Cybosoft is ready to sign an MFA control Software license Agreement with OEM partners in different markets and applications, and will also consider providing exclusive rights to help OEM partners improve their competitiveness.
"We strongly believe that the users of MFA-based control systems will soon discover the performance, accuracy, and yield improvements of the model-free adaptive control system. Jeff Wills, senior product manager at Siemens Building Technologies, says.
Another report on Siemens ' cooperation with Cybosoft: http://article.cechina.cn/2003-11/20051128103216cdfe3.htm
Cybosoft Company China official website: http://www.cybosoft.com.cn/use of global addresses
Siemens has a global address for each point in the insight system, and the address definition is as follows: Bac_device instance_ Point Type _point instance, the role of global address is mainly reflected in the cross-bus communication, For example, to implement a button control in the building all the air conditioning units (multiple AlN), then you can be implemented in a program.
In the PPCL programming Manual said, in the early stage of the program to consider the impact of the program on the bus communication, if a large number of global addresses will cause network congestion, this problem is difficult to troubleshoot on-site, fixed recommended that this kind of point is not used extensively.
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