Based On Field Bus Technology Transfer Program Of The Signal

Introduction   This stage, the system used totraditional signaling the importance of experience in
implement the relevant components of the designthe design process is the basic principle of the bus
of signal transmission in most of the simple pointprogram, rational use of redundant design will not
to point wire-type transmission, such transmissiononly improve the reliability of bus system, but also
in the case of less number of signals can be saidto improve the system performance.
is a simple and practical way, but much against2 Preliminary Design and Implementation of the
the number of signals and the limited space, thisprogram
design approach appears to be somewhatAccording to IEC standards and the Fieldbus
awkward, for example, the number of signals asFoundation (FF) of the definition, field bus is an
much lead connectors, wire increases, so doesall-digital, serial, two-way communication system,
not only control of a Missile Fuze System Designthrough the system Sensor , Actuators and
lot of pressure also because of the use of a largecontrollers to connect field devices, therefore, can
number of connectors reduce signal transmissionbe used in all components of complex systems,
system reliability, but also because of the"intelligent" to truly create a decentralized
presence of a large number of wires reduce thecommunications network site.
system adaptability to environment andFollowing control system for a missile fuze
electromagnetic compatibility.system, the signal characteristics and functions of
Fuse with a missile control system designall related components to achieve the
technology, the functional requirements of morerequirements of the program's design principles
complex, and miniaturization and reliability of itsbased on its signal transmission preliminary
structure, Security Requirements and otherresearch and analysis program.
performance indicators continued to improve, the2.1 Fieldbus Selection On FF, LonWorks, Profibus,
traditional point-wire type signal transmissionCAN, HART and other characteristics of different
increasingly unable to meet the developmenttypes of field bus analysis and comparison is
requirements of the system, with the drawbacksfound, CAN bus is the most numerous fieldbus
of the traditional design of the highlights signalingapplication of a future. CAN supports multi-way
and digital control technology and networkprincipal point of work, any node on the network
Communicate The technology matures, a newcan be active at any time send information to
type of field bus transmission scheme designersother nodes in support of point to point,
more and more attention to the fieldbus as themultipoint, and global Broadcasting To receive and
core design of the signal transmission cansend data. Its main advantages are: multi-master
effectively point to overcome the traditionalbus structure; wiring simple and most Qualcomm
drawbacks of wire-type transmission, improveLetter rate up to 1Mbit / s; CAN protocol to
Signal transmission system performance.encode the digital communications module; CAN
1 program design principles System, signalbus ensures a low error rate data communication
transmission between the relevant components ofreliability.
the implementation is essential for the realizationFuse in the control system of a missile control
of a system function, so, in the research andand Test Requirements analysis that, CAN bus
design process to ensure the system works allcontrol system fully satisfy the reliability and
the signal transmission process real-time, reliablereal-time requirements. However, in bus data
[1]. Specific design principles can be summarized asthroughput to the deficiencies, which were
follows:designed to consider the system through the
A) the principle of succession: a reasonable drawcontrol channel and test channel, or can be
and design in the tradition mature and rationalconfigured by type of field bus, such as Profibus,
design experience, and for the new scheme ofetc., to accommodate the different needs of
signal transmission systems, to highlight thecontrol and testing.
design, reduce design cycles, improve efficiency,2.2 interface design based on field bus
save money .Fieldbus interface with a control system before
B) advanced principle: Fieldbus program itself isthe missile fuze systems and ground-based
relatively conventional design of a majormonitoring system after system and signal
breakthrough, so the system signal transmission intransmission between the need for hardware and
the study and design process should focus onsoftware research and design.
future needs, based on mature technologies as2.2.1 Hardware Design First of all, to be connected
much as possible the use of advanced methodsto determine the relevant components of the
and products to optimize the hardware andsystem, parts of the detection signal and the
consider the flexible and efficient high-speednumber of control signals, types, and signal
communication protocols.characteristics. As the system transfers the
C) the principles of reliability, new field busrelevant subsystems Electric Signals were many
program, bringing the one hand, Cable Simplified,types can be classified according to Power supply
helping improve the reliability, on the other handLine, the system control signal lines, system test
because of the increased bus interface andsignal line. In order to meet overall system needs,
self-detection tasks, the system of localto try to optimize the design of signal
complexity increased, while the shells on the worktransmission system, in theory, these signals
environment is more severe, are likely to form athrough suitable transformations can be
new fault risk, so the scene Bus selection istransferred through the bus, while the actual
important to note the balance of performancedesign should be based on all relevant components
and reliability considerations, so that rational design.and parts functions, signal types to consider the
D) the principle of flexibility: the control systemimportance of rational design requirements. The
components are many different functions, signalprogram is considered the main bus network in
properties vary greatly in the research and designcombination with a small number of dedicated
program should be in accordance with theirconnections for signal transmission design ideas,
characteristics and needs of the general features,such as power supply signals, self-destruct signal,
flexible configuration using the combination of busBattery Activation signals. Specific connection
and green way of rational design.relationship shown in Figure 1.
E) the principle of redundancy: redundancy is the