RU44021U1 - WIRING DIAGRAM - Google Patents

Abstract

The invention relates to wired communication schemes, namely, to the configuration and arrangement of the communication line between the line controller and line devices in a system for collecting, processing and transmitting information. The scheme improves the reliability of a wired communication line by maintaining the communication of the line controller with linear devices in the conditions of multiple breaks and short circuits. 1 of FIG.

Description

The utility model relates to electrical communication systems, namely, to the configuration and circuitry of a communication line between receiving and transmitting devices in a system for collecting, processing and transmitting information, and relates to improving the reliability of communication.

A known scheme based on the beam configuration of a wired communication line (Operation manual PPKOPU "Minitronic 24", 2004, www.unitest.ru). In this configuration, a control panel (control panel) is connected to the radiation line, as well as linear devices - receiving devices for collecting information and generating control signals (for example, fire or security detectors and control modules).

A disadvantage of the known circuit is the low reliability of communication in view of the insecurity of the communication line from a break and short circuit of the line wires. With these damage to the line, the connection of the control panel with part or all linear devices is lost.

The closest in technical essence and the achieved result to the claimed device is a circuit based on the ring configuration of a wired communication line (Instruction Manual “Control Unit 496”, 2004, www.unitest.ru). In this configuration

linear devices are connected to the ring communication line, as well as a control unit for these devices (line controller).

The known circuit of the communication line provides its protection against a single break, since with a single break, the communication of the line controller with all linear devices is maintained. However, to protect against short circuit, the communication line is additionally equipped with two or more automatic line circuit breakers (short circuit isolators), which are included in the break of the communication line and distributed along its length. The line breakers work as follows. If a short circuit occurs in any part of the ring communication line, adjacent line breakers automatically disconnect the damaged part, i.e. make two breaks in the communication line - on either side of the short circuit, and when the short circuit is removed, an isolated section of the communication line is reconnected.

A disadvantage of the known circuit is also the low reliability of communication due to the insecurity of the communication line from two or more breaks, since the connection of the line controller with linear devices located on the disconnected section of the line is lost. The same applies to a short circuit, in which adjacent circuit breakers (insulators) of the communication line disconnect the portion of the communication line located between them by double breaking the wires of the communication line.

Within the framework of this application, the problem of increasing the reliability of wired communication by maintaining the communication of the line controller with linear devices in conditions of multiple breaks and short circuits is solved.

The problem is solved in that in a wired communication scheme including linear devices and a line controller with a ring communication line connected to it, a ring communication line is additionally

equipped with branches connected to it through devices for automatically disconnecting short-circuited branches, and linear devices connected to branches of a ring communication line.

The essence of the utility model is to develop the optimal configuration of the communication line for the localization of breaks and short circuits.

The annular communication line is preferably placed in places protected from damage. The sections of the communication line with connected linear devices, in this case, branch lines, are mainly affected by damaging effects. An open or short circuit in the branch of the communication line leads to the shutdown of only those linear devices that are located on this branch. The remaining branches and the line devices connected to them continue to communicate with the line controller. As a result, breaks or short circuits in two or more branches of the communication line do not lead to a loss of communication between the line controller and line devices connected to other sections of the communication line.

The essence of the utility model is illustrated by graphic material, where Fig. 1 shows a wired communication diagram using the following notation: 1 - communication line controller, 2 - ring communication section, 3 - address line devices, 4 - line branches, 5 - automatic shutdown device briefly -closed branches, 6 - automatic circuit breakers-insulators of the communication line.

To clarify the essence of the utility model, a non-limiting example of its implementation is provided.

Example.

Two ends of the address ring are connected to the controller of line 1

communication lines 2. In various places along the length of the annular communication line 2, branches 4 are connected to it through devices for automatically disconnecting short-circuited branches 5 (automatic breakers - branch insulators). All address line devices 3 are connected to branches of line 4. Address devices are devices that, when exchanging data with other devices in the line, are identified using an individual address code. In the ring communication line 2 it is allowed to install automatic circuit breakers - insulators of the ring communication line 6, and, if necessary, linear devices 3.

The scheme works as follows. If a short circuit occurs in branch 4, the device for automatically disconnecting short-circuited branches 5 disconnects it from the ring communication line 2, which does not lose its integrity, and as a result, the controller of line 1 is connected with linear devices 3 connected to other branches of line 4. When eliminating a short circuit, the device for automatically disconnecting short-circuited branches 5 connects branch 4 to the ring communication line 2. In case of violations of the ring communication line 2, its protection It can be installed using circuit breakers - insulators of the ring line 6 in the usual way.

The advantage of the utility model is the stability of the communication line to multiple damage due to their localization in the branches while maintaining the integrity of the remaining sections of the line.

Claims (1)

A wired communication scheme including linear devices and a line controller with an annular communication line connected to it, characterized in that the annular communication line is additionally equipped with branches connected to it via devices for automatically disconnecting short-circuited branches, and linear devices are connected to the branches of the ring communication line.