RU77992U1 - COMPUTER COMPLEX OF TRAINING TELEGRAPHERS - Google Patents

Abstract

The computer training complex for telegraph operators is a technical training tool, built on the basis of computers, and can be used to automate the training of communication specialists when working on telegraph devices. The complex consists of a teacher's remote control, including a personal computer, a display and a controller, as well as terminal start-stop telegraph devices. The controller simultaneously performs the role of a switch due to the additional introduction of a switching unit and information retrieval and galvanic isolation units and multiplexers. The developed complex can be used for self-training and self-monitoring of data transfer skills, as well as testing the knowledge of theoretical material. The proposed device of the computer complex allows continuous monitoring of the work of all students and to make an operational and reliable assessment of the quality of the training tasks for each student with the presentation on the PC or printing device of the number of errors, their place and nature, speed of transmitted text (in characters and groups), number corrections, etc. transmission of texts.

Description

The invention relates to technical training tools, built on the basis of computers, and can be used to automate the training of communication specialists when working on telegraphy devices.

A device for training wireless telegraphists (Av.St. No. 1264366), comprising a control panel and several channels, each of which consists of a trigger, keyboard, counters, comparison unit, logic devices, sound generator, headphone, indicating unit and speed control unit transmission.

The main disadvantages of this device are its technical complexity, which makes it difficult to use for training a group of specialists, the complexity of preparing equipment for testing, and, moreover, the device cannot be used for training on telegraph devices.

An interactive lecture class is known (RF patent for utility model No. 66583), containing a teacher’s console and individual testing devices. The teacher's remote control includes a personal computer, a display, a multimedia projector and a signal converter. The signal converter consists of a unit for interfacing with a computer, a unit for interfacing with individual testing devices, a software-controlled switch for testing devices, and an electrically reprogrammable read-only memory device. Each individual testing device is designed as a single button.

The main disadvantage of this device is the inability to learn the transmission of telegraph devices,

Morse code sensors and telegraph keys, as well as the inability to generate signals for learning to receive messages.

The closest in technical essence to the claimed invention is a class for the training of telegraph operators and wireless telegraphs (patent for utility model No. 73527), including a teacher’s remote control with a personal computer, display, projector and signal converter, containing an interface unit with individual testing devices, a programmatically controlled device switch testing, electrically reprogrammable read-only memory and individual testing devices containing switching an operating mode indicator, head phones, a telegraph apparatus, a telegraph key, a Morse code sensor, devices for interfacing with a signal converter with an address command generator and a message generator.

The disadvantages of this class include the technical complexity of the design, a large number of elements, the inability to apply to all types of start-stop telegraph devices and the lack of detailed control when working “in line”.

The technical problem to which the invention is directed is to create a simple, easy-to-use structure for training and self-training of telegraph operators with the possibility of using all types of start-stop telegraph devices, as well as the subsequent presentation of an operational and reliable assessment of the quality of work of each student on a display or printing device with indicating the number of errors, their location, nature, speed of the transmitted text (in characters and groups), the number of corrections, etc.

The problem is solved using the proposed computer training complex telegraph. The complex consists of a teacher's remote control, including a personal computer (PC), a display and a controller, as well as terminal start-stop telegraph

apparatuses. At the same time, the controller simultaneously performs the role of a switch due to the additional introduction of a switching unit and information retrieval and galvanic isolation units and multiplexers.

Functionally, the controller consists of three main blocks:

1. The switching and information retrieval unit is designed to select the operating mode of telegraph devices connected to it, as well as to convert current start-stop packages to the corresponding voltage pulses of a rectangular shape.

2. The galvanic isolation unit is designed for optocoupler isolation of input circuits and circuits for subsequent signal processing (with voltage of logical levels of digital microcircuits).

3. The multiplexer unit is designed for switching pulsed information flows from 32 input lines to 4 lines of the PC COM port for subsequent processing.

As a personal computer, any personal computer with the characteristics no worse than can be used: Monitor: CRT, 15 VIEWSONIC; System unit: Pentium MMX processor 133 MHz, RAM: 16 MB SIMM, HDD: 1 GB SANSUNG, Video card: S3 + 1 MB.

The device provides the connection of 32 or more (as necessary) start-stop telegraph devices of any type at the junction of C3 TT in the following modes:

1. The formation of 16 pairs of correspondents working with each other in the "single-pole simplex" mode.

2. The formation of 32 autonomous workplaces for working out educational tasks (control texts) with operational verification of each text with the help of a power supply module.

3. The combined mode of the complex allows at the same time part of the trainees to work in the “in line” mode, and the other in the “for themselves” mode.

Figure 1 shows the structural diagram of the complex, where:

1 - PC

2 - Display

3 - Controller

4 - Start-stop telegraph devices.

Figure 2 presents the functional diagram of a computer complex.

Figure 3 presents the functional diagram of one of the 32 channels of the switching unit and information retrieval.

Figure 4 presents the functional diagram of the galvanic isolation block.

Figure 5 presents the functional diagram of the unit of multiplexers.

The computer complex for training telegraphists consists of a teacher’s console, including a PC 1, display 2 and controller 3, as well as terminal start-stop telegraphs 4.

Controller 3 contains three blocks: a switching unit and information retrieval 3.1, including a divider and a switch of operating modes; galvanic isolation block 3.2, consisting of a divider, optocoupler, LED, photodiode and transistor; block multiplexers 3.3, including four multiplexers. The use of an optocoupler is caused by the need to eliminate galvanic coupling (via a common power wire) of the high-voltage circuit of the linear battery and the low-voltage circuit of signal processing by logic circuits.

Computer complex training of telegraph operators works as follows. After turning on the PC 1 and downloading the computer program developed specifically for this complex, a menu appears on display 2, in which the mode of the complex operation is selected: the number of telegraph devices, the speed of their interrogation, the delay conditions and the evaluation criterion (number of errors) are set. Then the mode of registration and reception of information from telegraphy 4,

the names of the trainees and the options for the texts of tasks (telegrams, cryptograms or codograms) are entered, the time for recording and receiving information from the workstations of start-stop telegraphs is set 4. The signal from telegraphs 4 with a voltage of 0-40 V is fed to the commutation and data reading unit 3.1, where it is determined operating mode (“in line” or “on myself”). If the “in line” mode is selected, then the switch mode switch of the switching and information-collection unit must be set to the upper position and all devices are in standby mode (“stand on foot”). When you press the key of any device, one of the keys opens and the “dead-less” - starting package starts the transmission line of the sign (symbol) of the five-digit telegraph code.

When the switch of the mode switch of the switching unit and the removal of information in the lower position - the telegraph devices work with the equivalent load, the operating mode "on".

In addition, the flow of linear current through the divider of the switching unit and information retrieval causes a voltage drop, which is a signal to turn on the galvanic isolation unit 3.2. In this case, a rectangular voltage pulse of negative polarity is generated and thus the current and “currentless” telegraph packages are converted into rectangular voltage pulses. The signal in the galvanic isolation block 3.2 through the divider is fed to the optocoupler and then through the LED through the light flux to the photodiode. The transistor amplifies the weak signal from the photodiode to a level of 0 ... + 5 V, and the signals from the galvanic isolation block 3.2 arrive at the inputs of the multiplexer block 3.3 in the form of 4 eight-channel streams. Multiplexers transform each of the 4 eight-channel parallel streams into one serial stream according to the principle of temporary channel multiplexing (separation).

The PC program manages to repeatedly interrogate the state of eight lines before the information on them changes, and evaluate the performance of each

learner. After the set transmission time, the PC determines the amount of telegrams transmitted, print speed, the number of errors and the student’s assessment, transfers information to a display or printing device.

The developed complex can be used for self-training and self-control of the skills of transmitting code abbreviations, as well as testing the knowledge of theoretical material. The proposed device of the computer complex allows you to produce:

continuous monitoring of the work of all trainees;

the formation of groups of students with the same level of training;

reliable and operational assessment of the quality of the transmission of texts of each student;

an objective assessment of the completion of the training tasks of students with the presentation on the PC or printing device of the number of errors, their place and nature, the speed of the transmitted text (in characters and groups), the number of corrections, etc.

In addition, the complex can be put into a mode of assessing the quality of pair exchange, with the possibility of continuous and documented assessment of the quality of each.

Claims (1)

A computer training complex for telegraphists, including the teacher’s console, as part of a personal computer, display and controller, as well as terminal telegraph devices, characterized in that the controller also includes an information switching and data acquisition unit, as well as galvanic isolation units and multiplexers that work with various types of start-stop telegraph devices.