SU858069A1 - Teaching device - Google Patents

Description

(54) TRAINING DEVICE

The invention relates to automation and computing, in particular to the automation of the educational process and can be used in various educational institutions. A training device is known that contains communication units with a calculator, a decoder, an input unit, a controlled overhead projector, a screen, a photosensor unit, a logic unit, a rating unit, and a display unit U. A disadvantage of such devices is their complexity due to the use of computers. Closest to the invention is a device comprising a response input unit associated with a response comparison unit and a memory unit connected to a playback unit which is connected to the registration unit of the address comparison unit, the address register, the response comparison unit and the feature definition unit, connected to the address comparison unit, the control unit and the response comparison unit associated with the control unit, which is connected to the registration unit and the address register connected to the memory unit and the address cpaBHeHtLH block, stroke which is connected to the memory unit. This device allows you to select the next frame depending on the response of the student and thus realize extensive programs of almost any complexity 2. This device uses three types of codes in the program, and the design of the device differs in complexity due to the complexity of registering branched programs. The reason for this drawback is the adopted organization of the programs and the adopted method of finding personnel in the program. The purpose of the invention is to simplify the device. The goal is achieved by the fact that in a well-known educational device containing successively included response input block, educational information memory block, educational information reproducing block and comparison block, the input of which is connected to the second output of the block, input of answers, two pulse generators are entered. and the element And, connected by the output with the second input of the memory block of educational information.

The first input is with the output of the educational information playback unit, the second input is with the output of the first pulse builder, and the third. the stroke - with the output of the second pulse generator, the first input of which is connected to the first output of the comparison unit, and the second input - to the output of the educational information playback unit connected to the first input of the first shaper 1 pulses, the second input of which is connected to the second output of the comparison unit, and the first driver pulse contains the first memory element and the second element And, the first and second inputs of which are connected respectively with the first and second inputs of the imaging unit, and the output with the input of the first memory element, the output of which is the output of the driver, and the second pulse driver contains the inverter, the third and fourth e, the elements AND, the OR element and the second element of the gun, the output of which is the output of the driver, the inputs of the first and second innovators and the second inputs of the third and the fourth elements And connected to the corresponding inputs of the shaper.

FIG. 1 shows a block diagram of the proposed device; in fig. 2 - specific implementation of pulse shapers.

The teaching device depicted comprises a block 1 for inputting answers, a block 2 for comparison, a block 3 for learning information, a block 4 for reproducing learning information, shapers 5 and 6 pulses, and element 7.

Block I consists of switching elements, triggers for storing responses, and a tape starting relay (not shown), block 2 performs a one-to-one comparison of the student’s response code and the program carrier control codes. Block 3 contains a program carrier (for example, a movie tape), and a control auto-slide projector (not shown).

Block 4 consists of a screen and photoelectric sensors that read the control codes of the program carrier (. Are not indicated. The funnel finisher contains doses of educational material (frames) and control codes of the same type. The codes / controls contain address bits corresponding to the address frames of certain frames, bit comparing and stopping the program carrier. The codes are arranged in groups perpendicular to the direction of movement of the film (perpendicular to the edge of the film). Near one frame can be placed from one to several control codes. The stop bit is encoded in the last & bit of a group of codes located near one frame.

Element 8 (Fig. 2) of block 4 reads the bit of stopping the control code of the program carrier, elements 9-10 read the address bits of the program carrier, element 11 reads the reference comparison. Element 12 marker pulse shaper contains the element And 13 and the element 14 of the frame. The pulse former B comprises inverters 15, 16, elements AND 17, 18, element OR 19, and element 2 of memory.

The training device operates as follows.

The student, using the switching elements of unit 1, enters the response, the input signal of the response goes to unit 3 to start the frame search mechanism. The film codes are read by block 4, amplified and fed into the remaining blocks of the device. In block 2, the address bits of the control codes and the code of the answer entered by the student are compared bit by bit. The signal of the presence or absence of a comparison enters drivers 5 and 6.

The imaging unit 6 remembers the presence of a bit comparison of the address bits of the control code and the response code if the code compared does not contain an encoded bit of the reference comparison coming from block 4 to the imaging unit 6.

If a bitwise comparison did not occur, however, in one of the control codes for the group of codes belonging to this frame, the encoded bit of the mandatory comparison is contained, then element 20 will also remember the presence of the comparison. Thus, the element 20 of the block b stores and issues a stop signal on the element And 7 in the event that there is a bitwise comparison of the address bits of the control code and a response code in the absence of an encoded bit of an obligatory comparison, or there is no bitwise comparison and there is an encoded bit of comparing during film motion.

The And 17 element also receives a signal from the imaging unit 5 containing the memory element 14 (trigger). The entry in it is made in the event that the address bits of the control code and the code of the entered answer have been compared in the driver 5, and if the coded bit of bit is contained in this control code. body comparison. Under these conditions, element 14 will record a transition signal, which supplies a prohibitive signal to element 7. Otherwise, a stop signal is sent from element 5 to element 7.

From block 4, the element 7 receives a signal to stop the programmer, encoded in the last control code of a group of codes. If it is present and if there are permissive signals from the formers 5 and 6, the element And 7 sends a signal to stop the tape drive mechanism of block 3, the required frame is found,

i The operation of the device is explained in the functional diagram (Fig. 2). Initially, elements 14 and 20 are in the zero state. Elements 9 and 10 of block 4 in block 2 receive signals corresponding to the address bits of the control code, comparing with the signals of the code of the entered response coming in block 2 from block 1. Comparison arrives at the element And 13, which also receives the signal from the element 11 of block 4, corresponding to the bit of the obligatory comparison of the control code. If there is a bitwise comparison, element 14 will be set to one state, and the inhibiting signal from its inverse output will go to element 7. In the absence of such a comparison, element 7 will receive an enabling signal.

Element 17 generates a signal to install element 20 into one state through element 19 in the event that element 17 goes through inverter 15 (No comparison signal for addressing code bits with a response code, and if element 11 of unit 4 receives a signal film-encoded comparing.

Element 18 generates a signal of setting element 20 into unit state through element 19 in the event that element 18 receives from block 2 a signal of the presence of a bit comparison of the address bits of the control code and the response code and if element 18 is sent through inverter 16 with a signal element 11 of block 4 about the absence of a digitally encoded comparison encoded on a film.

The tape mechanism will stop at the presence of a signal on element 7 from element 8 of block 4, when a stop signal is encoded on the film in the last control code of a group of codes, and also if element 14 retains its original state and therefore delivers to the element 7 allowing the signal, and element 20 has changed its initial state to a single state and therefore also sends to the element 7 a breaking signal. After reading the last control code of the group, the elements 14 and 20 are reset to an initial state after some time determined by the time of the stop of the film (the response time of the tape mechanism).

Thus, the group of control codes corresponding to a certain frame will slip, i.e. The device will not respond to this group if one of the codes in it contains the encoded bit of the mandatory comparison and in it the address bits are compared with the code of the entered answer. A group of codes, where one of the control codes is contained, in which the address bits were compared with the response code in the absence of a coded bit of the required comparison Or only its presence

5 without comparing, generates a stop signal of the frame search mechanism.

The proposed device differs from the known devices similarly to the purpose and principle of its simplicity. The device uses only one type of control codes that are read during the motion of the film. It does not contain elements of the memory area of the program.

5 (subroutines), in which one follows the answer to search for the desired frame, and also does not contain the code memory elements of the next required frame, the second code comparison block of the next frame with

0 with the code of code and the block for determining the type of codes, the introduction of which greatly complicates the known devices and their programs. However, the device allows realizing branched programs, the complexity of which is sufficient for use in the educational process.

Claims (3)

1. A training device containing a sequentially connected response input unit, an educational information storage unit, an educational information reproduction unit and a comparison unit, 5 whose second input is connected to the second output of the response input unit, characterized in that, in order to simplify the device, it contains two pulse makers 0 and the element I, connected by the output to the second input of the educational information block pgsm, the first input to the output of the educational information reproduction block, the second input to the output of the first pulse shaper, and the third input to the output of the second pulse shaper, the first input which is connected to the first output of the comparison unit, and the second 0 input - to the output of the educational information playback unit connected to the first input of the first pulse shaper, the second input of which is connected to the second section of the comparison unit. 2. A device according to claim 1, characterized in that the first forkshrovatel pulse contains the first memory element and the second element And, the first and second inputs of which are connected respectively with the first and second inputs of the imaging unit, and the output - with the input of the first memory element, output which is the output of the former. 3. The device according to claim 1, characterized in that the second pulse shaper comprises two inverters in series, a third and fourth AND elements, an OR element and a second memory element, the output of which is the output of the former, the inputs of the first and second inverters and the second the inputs of the third and fourth elements And connected to the corresponding inputs of the driver. Sources of information taken into account in the examination 1. USSR author's certificate 327510, cl. G 09 B 7/02, 1971. 2, USSR Author's Certificate in Application No. 2184468 / 18-24, cl. G 09 B 7/02, 1975 (prototype). fig 2