SU665315A1 - Device for training operator and investigating his work - Google Patents

Description

one

The invention relates to training models and simulators and can be used to train operators and study their physiological state.

A device for training and investigating the operator’s work is known, which contains a model of the controlled object, a control and an object parameter control circuit whose outputs are electrically connected with the model of the controlled object, an interference generator, a recording unit and a display board 1.

However, the effectiveness of the known device while training the operators is not sufficient, since the device does not perform the current assessment of the operator’s work.

The aim of the invention is to increase the efficiency of the training and to study the operability of the operator by complicating the control functions.

The goal is achieved by the fact that the device has comparators, an adaptation block and a blocking and return circuit, the outputs of the noise generator and the blocking and return circuits are connected to the inputs of the model of the controlled object, the output of which is electrically connected to the first inputs of the recording unit and the information board. the first and second comparators, and the output of the first comparator is connected to the second inputs of the recording unit and information board, and the output of the second comparator is connected to the third inputs a tripping block and information board, the adaptation block input is connected to the output of the second comparator, and the adaptation block output is electrically connected to the fourth inputs of the recording unit and the information board and to the input of the object parameter control circuit, while the output of the second comparator is connected to the blocking and return circuit input. FIG. Figure 1 shows the electrical structure of the device; in fig. 2 - a possible embodiment of the device.

The device contains a control unit 1, a noise generator 2, an object parameter control circuit 3, an interlock circuit 4 and

return, model 5 of the controlled object, comparators 6 and 7, adaptation block 8, recording block 9 and information board 10. The operation of the device consists of the following.

I act on control organ 1, the operator tends to keep the output signal of model 5 of the controlled object at a given level. The mismatch between the target and the actual signal level is indicated by the information board 10. If

the mismatch exceeds a certain predetermined value determined by the setting of the first comparator 6, the latter is triggered, and a light indicator lights up on the information board, which goes out if the mismatch, due to successful operator actions, becomes less than the first comparator setpoint 6. When the operator does not copes with the control, and the mismatch continues to increase, followed by the first comparator 7, which simulates the "Accident. An alarm signal (for example, a flashing red, accompanied by a siren sound) lights up on the information board, and the blocking and returning circuit 4 for some time keeps the model of the controlled object in the “Alarm” state in order to fix the operator’s attention to the error barred, eno. After the set time has elapsed, the blocking and returning circuit removes the blocking, puts the object into the zero error state and releases it, after which the operator is once again able to control it.

In order for the control process to be rather complicated, in the proposed device, an inertial unstable control object is simulated, at the input of which, in addition to the operator's influence, interference from the generator 2 of the disturbance enters. In addition, the dynamic parameters (properties) of the object do not remain unchanged, but change under the influence of the adaptation block 8, which affects the model 5 through the object parameters control circuit 3.

The action of the adaptation unit is as follows. Immediately, as soon as the operator starts to work, the signal at the output of block 8 begins to increase, as a result of which the circuit 3 gradually changes the dynamic properties of the object in the direction of increasing its speed. Since the object is unstable, it becomes increasingly difficult for the operator to keep it, and he begins to make mistakes. After each Failure, the second comparator U, acting on the input of block 8, reduces its output signal by a certain, predetermined value. Thus, the signal level at the output of block 8, which is displayed on the information board, serves as a continuous quantitative assessment of the quality of the operator’s work.

If the operator works well, the signal at the output of the adaptation block 8 is large. If the operator starts to make mistakes, the signal from the adaptation block 8 is reduced, and the performance of the object decreases. The device automatically adapts to the capabilities of the operator. Evaluation of his work, which he sees on the information board, stimulates the operator to work better, which increases the effectiveness of the training.

A recording device connected in parallel to the information board allows the operator to conduct a study.

A possible embodiment of the main units of the proposed device is shown in the form of a simplified principle

The diagrams in FIG. 2. The model of the controlled object 5 is represented by three operational amplifiers 1U, 2U, memory, the first of which summarizes the input signals from the control body 1 and from the interference generator 2. Amplifiers 2U and memory are switched on according to the integrator circuit to reproduce the inertia of the object and complicate the process management The locking and resetting circuit 4 comprises a field effect transistor 11 controlled from the second comparator 7 (not shown in Fig. 2). This transistor can shunt or release positive feedback from the output of the memory amplifier to the input of the amplifier 2U. Field effect transistors 2T

and the ST are designed to discharge the capacitors of both integrators (amplifiers 2U and memory) and, therefore, to return the object to the zero state.

The structure 3 of the control of the object parameters includes field-effect transistors 4T and 5T, which are used as voltage-controlled variable resistors. As they shunt the input circuits of the integrators, the change in resistance

4T and 5T transistors entail a corresponding change in the transfer coefficients (constant time) of the integrators. The control signal to the gates of 4T and 5T transistors comes from the output of the block

8, which contains an integrator with a sufficiently large integration time. Performed on the 4U operational amplifier, this integrator has two inputs; one of them is supplied with the constant voltage Еп

negative polarity, and another input is connected to the output of comparator 7. The output voltage of amplifier 4U is used to power the pointer pointing device placed on the information board 10. The readings of this device are for the operator an assessment of the quality of his work.

When, after switching on the device, the operator starts to work, the voltage is

the output of the 4U amplifier is close to zero, the transistors 4T and 5T are open, their channels syunty drive the input circuits of the integrators (2U and charger), their integration time is long, and the operator is relatively easy to control, try to keep the signal at the output of the 5 to opportunities close to zero.

As long as the control error does not reach the level of "Alarms, the signal from the comparator 7

equal to zero, the IT transistor shunts the positive feedback between the memory amplifiers and 2U, and the damping transistors 2Т and ЗТ are locked. The control values of these transistors are not shown for simplicity. The integrator (amplifier) 4U of the adaptation unit at this time integrates the signal -En, and at its output a positive voltage increases linearly. This leads to a gradual locking of the 4T and 5T transistors, their shunting effect weakens, and the speed of the integrators increases. It is becoming more and more difficult for the operator to control the object, and the assessment of the quality of his work, shown by information boards, is growing.

Sooner or later, the operator commits an “Avariu, i.e., the signal at the output of the memory amplifier reaches a level at which the comparator 7 is triggered, and a positive signal appears at its output. In this case, the IT transistor is locked, the positive feedback from the output of the memory amplifier to the input of the amplifier 2U is output. This link fixes model 5 in the state of "Accident, blocking the operator's action. At the same time, a positive signal from the comparator 7, which is fed to the input of the integrator (amplifier) 4U, causes a certain decrease in its output signal, which leads to a lowering of the estimate and easier control.

After some time, the circuit 4 blocking and return produces a signal that unlocks the transistors 2Т and ЗТ. The capacitors of the integrator are discharged, the voltage at the output of the model 5 returns to zero, the output signal of the comparator 7 vanishes, the blocking action of the positive feedback is removed. After that, the dimming transistors 2T and ZT are again locked and the operator is able to continue control.

Claims (1)

Invention Formula Device for training and investigating the operator’s work, containing a model object to be controlled, a control and an object parameter control circuit, the outputs of which are electrically connected with the model of the object being controlled, the interfering generator, recording unit and information board, characterized in that, in order to increase the efficiency of the training and to study the operator’s performance by complicating the functions control, it has comparators, block adaptation and blocking and returning circuitry, while the outputs of the noise generator and the blocking and returning circuits are connected to the inputs of the model of the controlled object, the output of which is electrically connected to the first the inputs of the registering block and the information board are connected to the first and second comparators, the output of the first comparator is connected to the second inputs of the registering block and the information board, and the output of the second comparator is connected to the third inputs of the registering block and the information board, the input of the adaptation block is connected to the output of the second the comparator, and the output of the adaptation unit is electrically connected to the fourth inputs of the registering unit and information board and to the input of the control circuit of the object parameters, while Exit second comparator connected to the input of the blocking and return circuits. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 425205, cl. G 09 B 9/00, 1974. Oml From 2 From 7