SU1103259A1 - Adaptive neuron-like element - Google Patents

Abstract

1. ADAPTABLE NEURAL-LIKE ELEMENT, containing input keys whose information inputs are the corresponding inputs of the element, and information outputs are connected to the inputs of a summing integrator, the input integrators on the number of inputs of the element and the voltage to frequency converter whose output is that, in order to increase the accuracy of the element, it contains a correction integrator, a short memory integrator, a long memory integrator, an OR element, a charge-discharge Circuits made in the form of parallel diode-resistive circuits consisting of series-connected resistors and counter-directional diodes, as well as keys of the input memory and correction keys for the number of element inputs, connected by information inputs through the corresponding charge-voltage circuits . the element inputs and information outputs to the inputs of the corresponding input integrators whose outputs are connected to the control inputs of the input keys, the inputs of the correction integrator and the short The modern memory is connected to the output of a voltage to frequency converter, the information input of which is connected to the output of the summing integrator, the output of the correction integrator is connected to the control inputs of the correction keys, and the first output of the integrator of the short-term memory and the output of the integrator long duration are connected to the corresponding inputs of the OR element The output of which is connected to the control inputs of the keys of the input memory, the information input of the integrator of the long-term memory is connected to the second output of the integrator atmodern. memory 2. An element according to claim 1, characterized in that it comprises an integrator of correction, an analog memory element, a charge-discharge circuit and a trigger, the output of which is the integrator output, and the input is connected to the input of the analog memory element and through the charge-discharge circuit C. is connected to the input of the integrator. 3. An element according to claim 1, in which it integrates a short-term memory integrator with an analog memory element, a charging circuit made in the form of a series-connected resistor and a diode, and a trigger the output of which is the first output of the integrator, and the input is connected to the input of the analog memory element, to the second output of the integrator, and through a charging circuit to its input. 4. Element pop. 1, I differ from the fact that in it the long-term memory integrator contains a memory element, the first and second triggers, the voltage source and the key whose input is connected to the voltage source, the control input is connected to the output of the first trigger, and the output is connected to the input of the memory element and the input of the second trigger, the output of which is the integrator output, the first-trigger input is the input of the integrator.

Description

The invention relates to adaptive neuron-like elements, can be used in robotics and cybernetics as a basic element in creating adaptive and self-learning network control systems. A neuron-like device is known. It contains synaptic conduction blocks, space-time summation blocks, and a neuron threshold l block adaptation block. Such a device is relatively complicated and does not provide for the correction of synaptic conductance after training. Closest to the invention is a neuron-like element containing input integrators, the outputs of which through controlled input keys are connected to the inputs of integrators summing the output voltage converter to a frequency of 2. However, such an element does not provide the possibility of adjusting the state of the input keys and, as a result, it does not have a sufficiently high accuracy. The purpose of the invention is to increase the workability of the element. The goal is achieved by the fact that a neuron-like element containing input keys, whose information inputs are the corresponding inputs of the element, and the formation outputs are connected to the inputs of the summing integrator, the input integrators on the number of inputs of the element and the transducer are element output, contains the correction integrator, the integrator of the short-term memory, the integrator of the long-body memory, the element OR, charge; but the discharge circuits made parallel to the Dioderivative chains, consisting of series-connected resistors and oppositely directed diodes, as well as input memory keys and correction keys for the number of element inputs, connected by information inputs through the corresponding charge-discharge circuits to the corresponding element inputs, and - to the inputs of the corresponding input integrators, the outputs of which are connected to the control inputs of the input keys, the inputs of the correction integrator and the short-term memory are connected to the output of the transducer The voltage body in the frequency information input of which is connected to the output of the summing integrator, the output of the correction integrator is connected to the control inputs of the correction keys, and the first output of the integrator of short-term memory and the output of the integrator of the long-term memory connected to the control inputs of the keys of the input memory, the information input of the long-memory integrator is connected to the second output of the integrator of the short-term memory. The correction integrator contains an analog memory element, a charger and a trigger, the output of which is the integrator's output, and the input is connected to the input of the analog memory element and through the charge circuit is connected to the input of the integrator. The short-term memory integrator contains an analog memory element, a charging circuit made in the form of a series-connected resistor and a diode, and a trigger, the output of which is the first output of the integrator, and the input is connected to the input of the analog memory element, with the second output of the integrator and through charge circuit with its input. The continuous memory integrator contains a memory element, first and second triggers, a voltage source and a key whose input is connected to a voltage source, a control one, the input is connected to the output of the first trigger, and the output is connected to the input of the memory element and the second trigger input whose output is the integrator output, the first trigger input is the integrator input. The drawing shows a diagram of an adaptive neuron-like element. The element contains input keys 1, keys 2 input memory, keys 3. correction, input integrators 4, pre-generator voltage 5 to frequency, summing integrator 6, integrator 7 correction, integrator 8 short-term memory, integrator 9 long-term memory , element OR 10, trigger 11 input integrators 4, inputs 12 ,, output 13, voltage source 14, memory element 15 (long and triggers 16 and 17 of integrator 9 long memory, trigger 18, charge-discharge circuit 19 and element 20 of analog memory of integrator 7 correction, charging circuit 21, trigger 22, and ele An analogue memory 23 (short-lived) of the integrator in the short-term memory, a long-term memory key 24 of the integrator 9. The adaptive neuron-like element works as follows. In the initial state of the element, the keys 1, 3 and 24 are in a non-conducting state, the keys 2 are in the conducting state. At the outputs of all

Triggers 11, 16, 17, 18 and 22 are low, i.e. logical zero.

The charge-discharge circuit 19 of the integration integrator 7 provides a charge up to the trigger level of trigger 18 in 2-3 rarest pulses and a discharge to the release level — for 2-3 periods in between.

Charging circuit 21 provides charge for memory element 23 in 10–20 rare pulses up to the trigger level of trigger 22 and –50–100 to the trigger level of trigger 16. Memory cell 23 discharge time is determined by leakage currents and for several DKOV more charge time.

The input charge-discharge circuits 19 provide the charge of the memory elements of the input integrators 4 for 10–20 rare pulses to the trigger level 11 and the discharge to the release level for 10–20 periods between them.

The charge-discharge circuits 19 provide the charge and discharge of the memory elements through the keys 3 over a time 1020 times more than through the keys 2.

Triggers 11, 17 and 16 work, i.e. give a signal of a logical unit, at the input level, a signal of about 0.8 level of a unit, and are reset, i.e. give a logical zero signal, when the signal level is below a logical zero.

Trigger 22 is triggered when a level of 0.5 is reached. Release is similar to releasing triggers 11. The voltage-to-frequency converter 5 has a dead zone, and in the remaining part of the operating range it produces pulses with a frequency proportional to the control signal.

The inputs 12 of the element. Are usually connected to the outputs of the same elements, so they receive pulse signals in the frequency range (0.35 + +1.00) of F-M of constant duration and amplitude. Between the input pulses are not synchronized.

Depending on the purpose of the element, the resistors at the inputs of summing integrator 6 are selected so that the signals pass through the element if there are signals at least at one, two, or most of the inputs.

The impulses arriving at the outputs 12 cause the voltage to increase at the accumulators of the input integrators 4 until the triggers 11 are triggered. translate keys 1 into conductive state.

The pulses from the inputs 12 are received through the keys 1 to the inputs of the summing

integrator 6, a voltage is generated at its output, which causes the appearance of pulses of a certain frequency at output 13. This frequency depends on the number and frequency of the input signals. After the signals are removed at the inputs 12, the signals at the output 13 also disappear after a delay time.

The appearance of signals at output 13 causes an increase in voltage on memory elements 20 and 23. In that case, if the time of generating signals at output 13 was long enough, which is a sign of passage through the working information flow element, then first of all the trigger 22 is triggered, which through the element OR 10 puts the keys 2 into a non-conducting state, which ensures the state of the inputs of the element at least at the time of the discharge of the memory element 23. ,

Those inputs 12 of the element on which there were no sufficiently intense signals remain disconnected from the inputs of summing integrator 6, and the memory elements of the corresponding input integrators 4 remain uncharged.

The triggers 11, after being turned on, with their own chains of resistors that maintain the voltage above the release level, become self-blocking.

However, in the future, when passing through an element that is in the state of memory, some information may be slightly corrected the state of the inputs.

This happens if, in memory mode, signals pass through almost all enabled inputs.

This triggers the trigger 18 and switches the keys 3 to the conducting state. If it turned out that during the initial memorization one or two inputs were turned on or not switched on incorrectly, then through the corresponding charge-discharge circuits 19 it is possible to correct this error, but this requires much more time.

In the event that signals are transmitted through the element for such a long time that the trigger 16 of the integrator 9 of the long-term memory is triggered, then using the key 24 to the voltage source 14. a continuous memory element 15 is connected. As a result, a very long memorization of the working state of the element is ensured.

However, with long-term non-use of the element in the working channels of information transfer, which indicates the need for a created chain and. the short-term memory element 23 and, | Finally, the long-term memory element 15 is discharged to the release level. In this way, the element is returned to its original state, and unnecessary information is erased.

The proposed adaptive neuron-like element provides for accumulation and transmission of information, memorization, correction, and return to the initial state.

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Claims (4)

1. ADAPTIVE NEURAL-LIKE ELEMENT, containing input keys, the information inputs of which are the corresponding inputs of the element, and the information outputs are connected to the inputs of the summing integrator, input integrators by the number of inputs of the element and the voltage · frequency converter, the output of which is the output of the element, characterized in that , in order to improve the accuracy of the element, it contains a correction integrator, a short-term memory integrator, a long-term memory integrator, an OR element, charge-discharge circuits, made in the form of parallel-connected diode-resistive circuits consisting of series-connected resistors and counter-directional diodes, as well as input memory keys and correction keys for the number of element inputs, connected by information inputs through the corresponding charge-discharge circuits to the corresponding inputs of the element, and information outputs to the inputs of the corresponding input integrators, the outputs of which are connected to the control inputs of the input keys, the inputs of the correction integrators and short-term memory These are connected to the output of the voltage-to-frequency converter, the information input of which is connected to the output of the summing integrator, the output of the correction integrator is connected to the control inputs of the correction keys. " and the first output of the short-term memory integrator and the output of the long-term memory integrator are connected to the corresponding inputs of the OR element, the output of which is connected to the control inputs of the keys of the input memory, the information input of the long-term memory integrator is connected to the second output of the short-term integrator. memory. 2. The element according to claim 1, characterized in that the correction integrator contains an analog memory element, a charge-discharge circuit and a trigger, the output of which is the output of the integrator, and the input is connected to the input of the analog memory element through the charge-discharge. the circuit is connected to the input of the integrator. 3. The element of pop. 1, characterized in that the short-term memory integrator contains an analog memory element, a charging circuit made in the form of a resistor and a diode connected in series, and a trigger, the output of which is the first output of the integrator, and the input is connected to the input of the element analog memory, with the second output of the integrator and through the charging circuit with its input. 4. The element according to claim 1, characterized in that the long-term memory integrator contains a memory element, first and second triggers, a voltage source and a key whose input is connected to a voltage source, the control input is connected to the output of the first trigger, and the output is connected to the input of the element IIMA about mint and the input of the second trigger, you> whose course is the output of the integrator, the input of the first trigger is the input of the integrator.