SU903938A1 - Device for examining pupils - Google Patents

Description

(54) DEVICE FOR CONTROL OF KNOWLEDGE OF TRAINED

Claims (2)

The invention relates to automation and computer technology, in particular, to technical means of training, and can be used in academic institutions in the study of complex schemes of automation, computer technology, pneumohydraulic and other types of schemes. A device for controlling students' knowledge is known, comprising a block for entering a response code, the output of which is connected to a software switching unit and a display unit, a response assessment unit, an error localization unit in the response, one input of which is connected to a software switching unit, to another to the block of input of the response code, and its output is connected to the display unit and the evaluation unit of the response P T. A disadvantage of the known device is its complexity. The closest to the present invention is a device consisting of an input block of answers, a comparison block, a memory block of educational information, a counter, an evaluation block, an error determination unit in the response f2. The disadvantage of the device is its complexity. The purpose of the invention is to simplify the device during knowledge control. The goal is achieved by the fact that in the device containing the sequentially included response input block, comparison block, count and shaper of the evaluation signals, the fault signal shaper, the first input of which connected to the second output of the comparison unit, and the memory block of educational information, the output of which is connected to the second input of the comparison unit, introduces the first delay element and the sequentially connected start driver, the clock generator and the second delay element whose output is connected to the second driver input error signals, the output of which is connected to the input of the driver for starting pulses, the output of the clock generator is connected directly to the inputs of the response input block and the memory block These training information and, through the first delay element, with the third input of the comparison unit, which contains successively connected inequality elements and the AND element, the first and second outputs of which are the corresponding outputs of the unit, the first and second inputs of the unequality element are the first and second the second block inputs, respectively. FIG. 1 is a functional diagram of the entire device; FIG. 2 - its register. The device for controlling the knowledge of learning1X contains a response input block 1, a block 2 of instructional educational information performed on a register, a memory node of an entered answer executed on a register, a comparison block consisting of unequality element 5 and AND 6 element, an error signal generator, determining the location of the error In response, consisting of the register 8 and the node 9 indicating the location of the error in response, the counter 10, the estimator, the generator of 12 clock pulses, the first delay element 13, the second delay element 1, the driver 15 starts x pulses, Register 8 can be executed, for example, according to the one-shift shift register scheme. Each trigger register (Fig. 2) uses one trigger 16. The register is controlled from the output of the element. Under the pushing pulse from the output of element I all the triggers 16 tilt to the state O, and the previously recorded information is temporarily stored in an intermediate memory, the function of which the delay element 17 can perform. The information is written to the register 8 from the output of the AND 6 element due to the fact that the delay time of the element 13 is shorter than the delay time of the element Ik. the last trigger 16 in register 8 is associated with the driver circuit of the driver 15 trigger pulses. All outputs of the flip-flops 16 to the register-e 8, except for the latter, are connected 9 4 to the node 9 indicating the location of the error in the response, which is a set of indicator lights connected to the outputs of the trigger 16. When the generator 12 stops, the indicator lights of the node 9 illuminate the bits of the register 8, in which the units corresponding to the bits in which errors were made in the response are recorded. The device for controlling the knowledge of students works as follows. In the initial position, the unit is recorded in the first position of one of the registers of a block or node 3, but not in the second. The student dials (enters) sequentially, bit by bit, the prepared response code using block 1 in the register of node 3, which memorizes the entered answer. After completing the input of the response with the resolution scheme of the driver 15, a signal is sent to the generator 12. Pulses from the generator 12 are sent to the shift buses of the registers of the block 2 and the node 3. Sequentially, the discharge for information is sent to the unequality element 5, which, if the information is not matched The second bit of block 2 and node 3 generates a signal at the first input of element 6. At the second input of element 6, the signal is output from the generator 12 through element 13. From the output of element 6, all erroneous points in the response are written to register 8, the signal shift on to which comes from the generator 1g output through element 1. The error location in the response is indicated by the node E. In order to avoid erasing information from the register 8, when it is filled, it sends a signal to the generator 15 resolution circuit, which stops the generator 12. The number of directional responses is counted by a counter 10 connected to a driver 11, which determines the total estimate and outputs it with the necessary accuracy. The proposed device for controlling students' knowledge in comparison with analogues is simple in circuit design (one-shot, triggers, keys are excluded from the circuit). Claim 1. Device for controlling knowledge of trainees, containing consistently included response input block, comparison block, counting signal generator and shaper, error signal generator, the first input of which is connected to the second output of the comparison block, and the training information memory block, the output of which Connected to the second input of the comparator unit, characterized in that, in order to simplify the device, it contains the first delay element and a series-connected driver for trigger pulses, a clock generator new pulse and the second delay element, the output of which is connected to the second input of the error signal generator, the output of which is connected to the input of the driver of the starting pulses, the output of the clock generator is connected directly to the input of the input unit answers and memory block of educational information, and through the first delay element - with the third input of the comparison block, 2. The device according to claim 1, that the comparison block contains a series of inequality and the element I, the first and second outputs which are the corresponding outputs of block 1, and the first and second inputs of the inequality element are the first and second inputs of the block, respectively, Information sources, taken into account in the examination 1. USSR author's certificate number 396766, cl. G 09 B 7/00, 1972. 2. USSR Author's Certificate If 680025, cl. G 09 B 7/00, 1976, (prototype). 12. 1 fb "Si  l I