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Aripov Nazirjon, Doctor of Technical Sciences, the Department Automation and telemechanics on railway transport Tashkent Institute of railway transport engineers, E-mail: aripov1110@gmail.ru Baratov Dilshod,
Ph D., of Technical Sciences, the Department Automation and telemechanics on railway transport Tashkent Institute of railway transport engineers E-mail: baratovdx@yandex.ru Ruziev Davron, Asistant of the Department Automation and telemechanics on railway transport Tashkent Institute of railway transport engineers, E-mail: ruziyevddd@gmail.com
THE PROBLEMS OF ALGORITHMIZATION OF THE AUTOMATED SYSTEM OF ACCOUNTING AND CONTROL DEVICES OF RAILWAY AUTOMATICS AND TELEMECHANICS DURING HIGH-SPEED MOVEMENT
Abstract. The article describes the stages of development of high-speed rail on the Railways of Uzbekistan, peculiarities of electronic document management of technical documentation of railway automatics and telemechanics. The considered problem of synthesis of mathematical descriptions of electronic document management of technical documentation of railway automatics and telemechanics.
Keywords: high-speed traffic, railway automatics and telemechanics, electronic document management.
Introduction design techniques, the organization of interaction of involved
In the Republic of Uzbekistan embarked on the modern- organizations, quality control ofwork execution, automation,
ization of its Railways, where the priority is to increase speeds input and retrieve information. The result increases the dura-
of passenger trains. In this direction have already been put tion of design, construction and commissioning of the sys-
into operation high-speed line at the site Tashkent-Samarkand tems, waste of time, more difficult scheduling of deadlines, it
with a train speed of 150-250 km/h. Was carried out a num- is impossible to take timely corrective management decisions
ber of measures to ensure traffic safety of high-speed trains and, consequently, significantly raise the price of supplies
such as the strengthening of railway lines, renewal of the di- work. Today in world practice in the field of automation occu-
mensions of the structures, reconfiguration of switches [1]. pies a leading position in developing highly efficient systems
Statement of the problem. In modern conditions, ex- of control of technological processes with the involvement of
panding the functionality of the latest systems of automation intelligent technologies. Further development of intelligent
and telemechanics, grow the amount and quality of informa- control technology in rail transport allows you to implement
tion provided by the railway automatics and telemechanics advanced technical systems with high performance and en-
systems for traffic management, monitoring of train location hanced functionality.
and state of infrastructure. With further development of these Intelligent technologies are allocated by the developed
systems, their design, process Troubleshooting of failures systems of monitoring and diagnostics. In modern conditions
becomes more difficult; increase the number of subcontrac- in the railway automatics and telemechanics systems of the
tors participating in the design, construction and supply of ability of a monitoring system organised on the basis of docu-
equipment, constructs and components; lengthened periods ment workflow technical and other regulatory documents. of verification systems in commissioning. In this regard, the establishment of an integrated monitor-
Unfortunately, with the establishment of railway auto- ing and control the design, construction, commissioning works,
matics and telemechanics systems do not always use modern supply of devices, materials, and equipment, as well as analysis
Section 9. Technical sciences
of the quality of work performed on the basis of document workflow technical documentation (DWTD) is relevant.
Formal method. The use of electronic document management [2] due to the increasing complexity of systems and, as a consequence, huge amounts of transmitted and processed information. For example, a test project of electric centralization of station visual method without the use of technical means at the time can be comparable with the time of system design. Thus, without the use of means of complex automation of processes of obtaining information and information exchange impossible to reduce time and increase efficiency of production work.
Formally, the process DWTD is submitted in the form of three finite sets and relations of the elements of these sets among themselves [3]. Mathematical notation of this process is presented in the form
DT = {U, P, F}
where DT - is a formal model of electronic document management of technical documentation; U - a plurality of participants; P - the set of processes; F - the set of states of the technical documentation (TD), which valid fields values.
A set U is defined as a finite set of actual participants in the workflow, P - as a finite set of processes, the implementation of which is within the system of workflow participants from many U. F - is a nite set of states, which can take a TD after executing processes of the plurality of P members from the set U.
Graph model. Logical level formal model document TD is implemented using the theory of graphs. When building a graph model of the circulation of TD are encouraged to use the following method to display workflow graphs of TD [4]. To set the vertex set of a graph we use the number of possible states of edges of F. Edges of the graph define a through many processes P. Install this according so as to fulfill the following rules:
- one node of the graph corresponds to one and only one element of a set F;
- one edge of the graph corresponds to one and only one element of a set P;
- one element of the set F corresponds to one and only one node of the graph;
- one element of the set P corresponds to one and only one graph edge.
As a basis consider the overall technological process of doing custom specs railway automation and telemechanics (Fig. 1), presented in [5].
The process consists of the following steps:
1) project organization is to customer specifications on the basis of the project under construction or renovation projects.
2) drafted specifications according to the service automation and remote control.
3) then, the specification should apply to the head of capital construction. Based on these data, determines which equipment must be ordered manufacturers. As in the specification of several hundreds of items of equipment and devices, the likelihood that their releases only one plant is very small. The capital construction Department shares the equipment specified in the specifications between suppliers.
4) Suppliers, in turn, give the order to the factory to fulfill the order.
5) Upon completion of the work, the plant sends equipment to the warehouse signalling.
Figure 1. The count of technological process of doing custom-made specifications of railway automatics and telemechanics
To denote model parameters used legend:
- documents denoted with a multitude of forms used in the simulated process - F1 ... F10;
- the processes performed on the documents for the state transitions - P1... P10;
- executor processes - 171 ... 1710. Consider the logical scheme of algorithms of process
management custom spec algorithm A11:
A11 = bm V111 ba t111 V17 da t112 a„3t113 u119bU3®t116 V13 um V16 u112u1B X
ti14 I 114 i i i I 112 7 -^>115 -^>117 I 115
114 115 116 117 118 114 V b115b116b117U1111U1112 V U1110b114«115 t U+®t V UJ
To display the transition process, the algorithmic descrip- - changed as the documents used in simulated process -
tion by using the graph theory [6; 7], construct the transition F1,..., F12.
graph (Fig. 2). - algorithms performed on the documents to change the
In the graph model following symbols have been used: conditions - C1,..., C14.
F4 F5 F7 FS F10
Figure 2. The graph model of algorithmic descriptions A11
Possible chains passing algorithm A11 in graph model:
^=F1C1-F2C2-F3C3-F4C4-F5C7--F7C8-F8C11-F10C12-F12
^=F1C1-F2C5-F6C6-F5C7-F7C8--F8C11-F10C12-F12 ^=F1C1-F2C9-F9C10- F8C11-F10C12-F12 ^=q1-q2-q3-C13F11C14-q1-q2-q3 Conclusion. Needs high-speed rail transport increase, which reveals the need to update and upgrade systems and devices of Railways, to develop modern information technologies in electronic document processing.
Based on the methodology of constructing a conceptual model of document management systems technical documentation [3] and models of composite workflow [4] this paper presents a graph model of electronic document management of technical documentation, and implementation of the model in the software module.
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