SU1104575A2 - Training device - Google Patents

Abstract

TRAINING DEVICE on author. St. No. 858067, characterized in that, in order to expand the didactic capabilities of the device, the coding block contains an OR-NOT element, three ceros of AND, OR and triggers connected in series, the first outputs of the triggers are output of the block, the second output of the first trigger is connected to the second the second trigger input, the second output of which is connected to the second input of the third trigger and the first input of the element OR NOT, the second input of which is connected to the second output of the third trigger, and the output to the second input of the first trigger, after ovally connected pulse generator, shift register and multi-input element And, the output of which is connected to the second inputs of the OR elements, the second input - to the output of the pulse generator, and the third input - to the third inputs of the trigger and the first output of the driver control pulses connected to the second input of the shift register are the first input of the block, the second inputs are the second input of the block, the group of inputs of the shift register is connected to the third input of the response input block.

Description

The invention relates to hardware and can be used to encode educational information without using a computer. According to the main author. St. No. 858067, a training device is known comprising a serially connected response input unit, a control pulse driver, a coding unit, a comparison unit, an evaluation generation unit, a display unit, a second output of the response input unit connected to the second inputs of the coding unit and the comparison unit, the third input of which is connected with the second output of the driver control pulses. A disadvantage of the known device is the ability to decrypt response codes, since when answering program questions by pressing the first buttons of the response input block, the first signals x of the response input block can set the coding block to only one specific state that prepares the comparison block to receive certain second answers. signals from the input block answers. This disadvantage reduces the didactic capabilities of the device. The purpose of the invention is to expand the didactic capabilities of the device. The goal is achieved by the fact that in the training device the coding block contains an OR-NOT element, three chains of AND, OR and triggers connected in series, the first outputs of the triggers are the output of the block, the second output of the first trigger is connected to the second input of the second trigger, the second output of which connected to the second input of the third trigger and the first input of the element OR NOT, the second input of which is connected to the second output of the third trigger, and the output to the second input of the first trigger, serially connected to a pulse generator, the shift register and the multi-input element AND whose output is connected to the second inputs of the OR elements, the second input to the output of the pulse generator, and the third input to the third inputs of triggers and the first output of the control pulse generator, the first inputs of the And elements connected to the second input of the register the shift is the first input of the block, the second inputs are the second input of the block, the group of inputs of the shift register is connected to the third input of the response input block. The drawing shows a block diagram of a training device. The device comprises a response input unit 1, a comparison unit 2, a coding unit 3, a control pulse shaper 4, an evaluation generation unit 5, an indication unit 6, a pulse generator 7, a shift register 8, a multi-input element AND .9, element 10, the elements OR 11, triggers 12, the element OR NOT 13. The device operates as follows. Before starting work, the student sets the device to its initial state by pressing the “SET.O” button, while the shaper 4 by a logical signal “O from one output prevents the input signals from block 1 from passing to block 2 and closes the multi-input element AND, and by logical signal“ 1 from another output it allows the passage of input signals from block 1 to block 3 and, acting on the control Uvkhod shift register 8, sets the mode of parallel recording of information received at its information D-inputs. To answer one question of the program, the student must make two entries in block 1 (press two buttons). With the first button pressed, the first signal from block 1 enters simultaneously to block 3 and shaper 4. A block, for example, block 3 is set to a position at which the block outputs (inverse outputs of D-flip-flops are affected by the following signals: logical "0, logical" 1 , logical "O. Zosle release the first button of block 1 input shaper 4 changes its state, signal logical 1 from one output allowing passage of input signals from block 1 to block 2 and opening a multi-input element I, and logical signal O from another exit out and passing signals from block 1 to block 3, setting the shift register 8 to the information shift mode. The positive generator pulses 7 act simultaneously on the C-synchronization input of the shift register 8 and the input of the multi-input element AND along the falling edge, shifted (or recording) information in the shift register 8, and on the leading edge opening the multi-input element - depending on the state of the most significant bit of the shift register 8 at the output of the multi-input element 9, pulse signals are generated that act through the combined inputs of the OR 11 elements to the synchronization inputs of the D-flip-flops of the coding unit 3 change their state and, consequently, the state of the outputs of the coding unit 3 connected to the inputs of the comparison unit 2. With the second button pressed, the second signal from input block 1 enters block 2 and shaper 4. Block 2 determines the correct response and issues a signal to block 5, which captures the correct answer. After releasing the second button of the block. 1 input driver 4 is reset. When answering subsequent questions of the program, the operation of the device is similar. After answering all the questions of the program, block 5 determines the number of correct answers and, according to a preset

The algorithm generates a score, which is indicated by block 6.

Thus, the proposed training device makes it possible for a certain sequence of input signals to establish several states of a coding block, which complicates the process of decoding response codes.

The table shows that in the proposed training device the number of sequences of correct answers is 4 times more than in the known device, which makes it difficult to decipher the answers and allows the use of 4 times more previously developed programs, which expands the didactic capabilities of the device.

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Claims (1)

TRAINING DEVICE by ed. St. No. 858067, characterized in that, in order to expand the didactic capabilities of the device, the coding unit contains an OR-NOT element, three small chains of series-connected AND, OR elements and triggers, the first outputs of the triggers are the output of the unit, the second output of the first trigger is connected to the second input the second trigger, the second output of which is connected to the second input of the third trigger and the first input of the OR-NOT element, the second input of which is connected to the second output of the third trigger, and the output - to the second input of the first trigger the pulse generator, the shift register, and the multi-input element And, whose output is connected to the second inputs of the OR elements, the second input to the output of the pulse generator, and the third input to the third inputs of the triggers and the first output of the control pulse generator, the first inputs of the AND elements connected with the second input of the shift register, they are the first input of the block, the second inputs are the second input of the block, the group of inputs of the shift register is connected to the second input of the response input block.