SU1716608A1 - Encoder of instructions for remote-controlled model - Google Patents

Abstract

The invention relates to automation and can be used in remote control systems for various objects. The invention makes it possible to eliminate the bounce of switchable contacts when changing commands, thereby ensuring the stable formation of a complete first group of control command pulses, which increases the immunity of the encoder. The command encoder for the remote-controlled model contains inverters, shift registers. A storage element, load elements, AND-NOT elements, a key element, switches, and separation elements. 1 il.

Description

The invention relates to automation and can be used in remote control systems of various objects.

The aim of the invention is to improve the immunity of the encoder;

The drawing shows a schematic diagram of an encoder.

The encoder contains the first inverter 1, the first and second registers 2 and 3 of the shift, the storage element 4, the first load element 5, the second inverter 6, the first element AND-NE 7, the third inverter 8, the key element 9, the second load element 10, the second-fifth elements of the NE-NOT 1.1-14, the first-fourth switches 15-18, the first-eighth separating elements 19-26, buses 27, 28 of the potential and zero potentials, information 29 and control 30 encoder outputs.

The encoder works as follows ..

From output 30, the voltage supplying the inverters 1, 6.8, registers 2 and 3, and elements NE 14-14 is removed.

When the moving contacts of the switches 15-18 are in the position indicated in the drawing, the supply voltage from the bus 27 does not reach the registers 2, 3, the inverters 1, 6, 8, AND-HE elements 7, 11-14, key element 9 Consequently, the encoder is turned off. Encoder will be turned on only when one of the switches 15-18 is pressed.

The first, second and third outputs of the first register 2 receive signals of the fourth, third and second bits, respectively. The first and second B. LEADERS of the second register 3 receive signals of the eighth and fifth bits, respectively.

 When you press one of the switches 15-18 pulses of the clock generator, made on the elements 1,4,5 and 6, pass through the corresponding register 2 or 3, soY

ABOUT

oh oh

00

the corresponding element AND-NOT 11-14 and the element AND-HE 7, at the output 29, form pulse sequences consisting of a certain number of pulses separated by pauses,

The bounce of the contacts that occur when triggered appears at the time of the occurrence of transients that occur when the power is supplied to the elements of the decoder. This circumstance allows to eliminate the harmful influence of bounce on the generated information. The introduction of the delay in the formation of the first pulse of the command (the first bit of register 2 does not participate in the formation of information) eliminates the influence of contact bounce and transients on the formation of the first pulse in the first group of any command. Thus, the encoder allows you to form the first group of any of the commands completely.

Claims (1)

Claim Instruction Encryptor for a remote-controlled model containing the first inverter, the output of which is connected to the counting inputs of the first and second shift registers and the first output of the storage element, the second output of which is connected to the first output of the first load element and i connected to the input of the first inverter, to the second output of the first load element and to the first input of the first NAND element, the output of which through the third inverter is connected to the first output key element, the first output of the first shift register is connected to the information input of the second shift register, the first output of which is connected to the setup inputs of the first and second shift registers, the information input of the first shift register is connected to the first output of the second load element and with the second output of the key element, switches, positive potential bus and zero potential bus, the third output of the key element is the information output of the encoder, characterized in that, in order to improve the immunity of the encoder, the second and fifth elements of the NOT and the separating elements, the movable contacts of the first, second, third and fourth switches are connected to the first terminals of the like separating elements and to the first inputs of the second, respectively, the third, fourth and fifth elements AND- NOT; the second terminal of the second load element is connected to the second input of the first AND element and to the first terminals of the fifth, sixth, seventh and eighth separation elements; the second terminals of the first to fourth separation elements are combined and connected to the information input of the first shift register and are the control output of the encoder, the second output of the second shift register is connected to the second input of the second NAND element, the output of which is connected to the second output of the fifth section an integral element, the second input of the third NAND element is connected to the first output of the first shift register, the second and third outputs of which are connected to the second inputs of the fourth and fifth AND NAND elements, respectively, the outputs of which are connected to the second terminals of the seventh and eighth separation elements, the output of the third element is NOT connected to the second output of the sixth isolating element; the closing contacts of the first to fourth switches are connected to the positive potential bus, opening contact first to fourth switches are connected to zero potential bus.