What are Three types of expert system development tools?
Skeleton Type Expert System:
It is the basis for the successful expert system application, removing the specific content of knowledge retention and the shell reasoning of knowledge representation and a special tool to enhance knowledge acquisition subsystem functionality.
Universal Type Expert System:
That is a knowledge representation via language, such tools provide a more generic configuration and this type of language corresponds to the reasoning facts. The user can enter production in the form of knowledge and facts, such as OPS-5 production system-oriented language which is equipped with a forward reasoning for process which rely on internal reasoning mechanism for the solution to the problem.
Toolbox type Expert System:
That type is in middle of general and special development tools. It provides the framework for the several expert systems components (such as reasoning frame, blackboard framework, etc.), and each frame is composed of several modules. Description added according to the needs of designers and system automatically generate the expert system for process with certain areas targeted. Example of such development tools are AGE, ZDEST-1
What is Artificial Intelligence?
Artificial Intelligence (AI) language is adapted for the field of artificial intelligence and knowledge engineering, symbolic processing and logical reasoning ability combined in computer program. That computer program can be used to solve numerical/non-numerical calculation, intelligent knowledge processing, reasoning, planning, decision-making, such as a variety of complex issues. The typical AI language are LISP, Prolog, Smalltalk, C + +, etc.
What are the basic components of Artificial Intelligence?
The basic components are:
- Knowledge representation technology
- Knowledge, reasoning techniques
- Fuzzy logic
- Neural network technology
- Genetic algorithms
- Expert systems
- Machine learning
- Swarm intelligence
What is model reference control?
The basic idea of adaptive control lies in control system design, a constantly measurements of the states of the controlled object, performance and parameters, thus finds out the master of the current health of the system which can have positive effects on system state. Analyze the current state of system performance indicators and expectation indicators so as to make decisions based on the comparison results and to change the structure and parameters of the controller and to change state variables according to the laws of the adaptive control action to ensure that the system is running in optimal state.
Generally speaking, the adaptive control system is coupled with feedback control systems with basic control loop and adaptive mechanism is also constituted. It has three functions:
(1) Real time identification.
(2) The decision-making control.
(3) Real Time correction
What is PLC?
PLC (Programmable Logic Controller ) is a control device which uses memory that can be programmed for its permanently stored program, that is used for the implementation of logical, sequential control, timing, counting and arithmetic operations such as user-oriented instruction and digital or analog input / output control of various types of machinery or production processes.
What is the working principle of PLC?
When programmable logic controller is put into operation, the course of their work are generally divided into three :
- Input sample stage
- User program execution stage
- Output refresh stage
What is the input stage execution of PLC?
In the input sampling stage, the programmable logic controller sequentially scan/reads the status of all inputs and data and they are stored in the corresponding cell in the I/O memory area.
What is user program execution stage?
Programmable logic controllers are always followed by a top-down order to scan the user program (ladder/FBD). Scanning each ladder by the contact form on the left of the control line and process the first left and right line and execution continued the first after the other and according to the result of logic operation it refresh the status of the corresponding logic bit of the coil in the system RAM storage area.
What is the output refresh stage of PLC?
After the end of the scan and execution of user program, programmable logic controllers starts the output refresh stage. During this period, the CPU status and data in accordance with the I/O from memory area refresh all of the output latch circuit.
