SU734794A1 - Automated class for examining pupils - Google Patents

Description

The present invention relates to automation and computing, in particular to the field of training systems built on the basis of computers, and is intended to teach and control the knowledge of students in educational institutions in various disciplines. One of the well-known automated classes contains external consoles, including keyboards, connected via switches to comparison relays, and student display and response nodes. 1. Another well-known automated class contains appropriately connected central logic unit with a teacher’s console, student consoles, control board, block of issue of educational information, block issuing of commands, switchboard with a clock program mechanism, group battery of answers, program block h response response codes, software mechanisms, response correction blocks containing threshold amplifiers and a series of resistance chains connected to the input circuit of the threshold element and contact input key 21 by contact-tailed ones. However, the known devices are characterized by narrow specialization, limited capabilities; lack of processing control results; as well as the fact that they include a number of mechanical components, which reduces reliability and increases the level of noise in the classroom, which distracts the attention of students. Due to the reasons outlined above, these control devices have not found wide application. The closest in terms of the achieved effect and technical essence to the proposed device is an automated class for monitoring students' knowledge, containing the associated response input block, OR elements, state trigger, address trigger, address deligrator, response delimiter, address register, response register, switch, switch control block, memory block, interrupt control block, electronic computer 3. This automated class allows you to more efficiently use the memory itelnoy machine and while it is running. The disadvantages of this class are the large hardware costs in the implementation of the student consoles and a significant number of communication lines between the student consoles and the switch, which in turn leads to the complication of both the switch circuit itself and the connection of the consoles with the computer. The purpose of the invention is to simplify the device by reducing hardware costs in the implementation of the student’s workplace, as well as reducing communication lines between the student consoles and the switch. The goal is achieved by the fact that a known device containing learning consoles is connected via a switchboard to a memory unit and, via an interrupt control unit, to an electronic computer connected to a memory unit connected to a switchboard control unit. It additionally contains a count of the entered characters, connected to the remote controllers, them, the control unit of the switch and the memory unit, and an encoder of the start address connected to the control unit of the switch torus and memory block. The drawing shows a diagram of the proposed device. The device includes a response input block 1, the output of which is associated with a trigger 2 states and a trigger 3 addresses. The trigger outputs 2 of the states of all learners are connected to the inputs of the interrupt control unit 4. The second output of the block 1 for input of answers is connected through the element OR 5 with the trigger 3 addresses, the third through the w-response 6 with the register 7 of the answer. The outputs of the response register 7, as well as the output of the control unit 8 of the switch, are connected to the corresponding inputs of the switch 9 of the consoles and the outputs of the trigger 3 address and the second output of the control block 8 of the switch connect} to the counter of 10 entered characters, which is like the initial address encoder 11 connected to the switch 9 is connected to the memory unit 12, and two-way communication is established between the latter and the VES computer 13, in addition the output of the interrupt control unit 4 is connected to the machine 13. Blocks and nodes 1,2, 3, 5, 6 and 7 are located in 14 student consoles. The device works as follows. To conduct a separate course of control, tickets are pre-made that are offered to each student and differ in content. Tickets involve digital answers. Answers to the questions posed are accumulated in memory block 12. In this case, each student is assigned a specific zone in block 12. The initial addresses of the memory zones allocated by the students are specified using the encoder 11 starting addresses, and the current addresses within each zone are formed using the counter of 10 characters entered by adding the content of the corresponding node in the counter 10 and the contents of the encoder 11 on the address register in memory block 2 (this register is not shown in the drawing). The control starts from the moment the signal is issued. The control starts when the corresponding key is pressed by the trainee. In this case, in the response input unit 1, a signal is generated, according to which the 2 state trigger and the 3 trigger address are set to the zero state. After preparing the console for work, the student begins to enter his answers. Each answer to the security question after encryption to the NFLITER occupies binary bits in the answer register 7 (i.e. possible digital responses are in the range from O to 15), which contains eight data bits (one byte), it can be stored two answers to the student. The address of the cell of the corresponding memory zone is generated using the block 1 input answers, the encoder 11, the trigger 3 addresses, the counter 10 entered characters and the element OR 5. After each second keystroke in block 1, which corresponds to filling the register 7 response, to the input counter 10 receives a signal that increases the current state of the corresponding node by one, y. This is achieved by the fact that G1oc signals are sent to the counting trigger input 3, each keystroke in the response input block, which are combined with the OR 5 element, and a signal is generated at the input of the address trigger 3 only when it is switched, for example, from unit state 3 zero. Moreover, the signal from the output of the trigger 3 addresses, generated when it is switched from the zero state to one, with some delay arrives at the response register 7 and provides a shift in the information in it by four bits, preparing it to receive the next answer. The information from the reply register 7 and counter 10 is read after each second press of the keyboard and, since it is transmitted from register 7 to b; This transmission is performed using the switch 9, which sequentially performs the following polling of the registers of the consoles 14 and the nodes of the counter 10 according to the signals of the switch control unit 8, which additionally outputs a signal to the encoder 11 of the start addresses to set the start address of the memory zone allocated for interrogating the console 14 in the memory block 12, which is summed with the current address generated in the counter by 10 signals arriving from the corresponding REMOTELS 14.

After the end of the answer to the questions posed in each remote control unit 14, the response input unit 1 generates a signal "End of control, which sets the trigger 2 state to one state. The signal from the output of the trigger 2 notifies the interrupt control unit 4 of the end of the monitoring process on this console 14.

The interruption strategy of the operation of the computer 13 is determined by the interrupt control unit 4. Interruption may occur either at the end of the control process on all consoles 14, or after a certain time, or at the end of the control on a certain number of consoles 14, or by some other criterion, depending on the requirements of this control process.

After this, the control unit 4 generates an interrupt signal, which stops the execution of the main program in the machine 13 and transfers control to the execution of this monitoring program. At the same time, the machine 13 starts processing the information that is in the memory block 12, i.e., it compares the responses of the trainees with the various possible variants stored in its memory.

The monitoring program provides not only the issuance of estimates obtained by trainees during monitoring, but also names the type of errors and gives portions of the material with explanations of these errors.

After completing the monitoring program, the monitoring results are output to the alphabetic printer, and the machine 13 proceeds to the execution of the program interrupted by the control unit 4.

The proposed device for controlling knowledge allows reducing hardware costs in the implementation of the student’s workplace, as well as reducing the number of connections between the student consoles and the switch. So, if for the implementation of the trainee's workplace in a known device it was necessary to have n address registers and n hell and res encoders, then the proposed one uses a single encoder and a block of n counters. The number of buses between the student consoles and the switch is reduced by the value of n (A-1), where n is the number of consoles, A is the number of buses leaving the address register (in a known device) to the switch.

This reduction in the number of communications and hardware costs for the implementation of jobs for students leads to a cheaper system with an increase in the number of student consoles, which is very beneficial when using such classes in large training systems.

Claims (3)

1. Authors certificate of the USSR s To 271137, cl. G 09 B 7/02, 1968. 2. USSR author's certificate jYo 184019, cl. G 09 B 7/02, 1963. 3. USSR author's certificate for application No. 2514527/24, cl. G 09 B 7/07, 03.08.77 Q (prototype). i4 / g