SU966907A1

SU966907A1 - Sensory change-over switch

Info

Publication number: SU966907A1
Application number: SU813260247A
Authority: SU
Inventors: Иван Иванович Сильченко
Original assignee: Предприятие П/Я В-2132
Priority date: 1981-03-12
Filing date: 1981-03-12
Publication date: 1982-10-15

Description

(54) СЕНСОРНЫЙ ПЕРЕКЛЮЧАТЕЛЬ(54) TOUCH SWITCH

1one

Изобретение относитс к автоматике и вычиспитепьной технике и может быть использовано 6 пультах управлени и в клавишных устройствах ввода информации .The invention relates to automation and computer technology and can be used 6 control panels and keypad input devices.

Известен сенсорный перекшочатепь, содержащий генератор пр моугольных им- пульсов и сенсорные чейки, состо щие из сенсорного поп , элемента И и TjaHi гера 1.10A sensory switch is known, which contains a generator of rectangular pulses and sensory cells consisting of sensory pop, element I, and TjaHi ger 1.10

Недостатком данного устройства 51вл .етс низка помехоустойчивость, обусловленна возможностью прохождени информации через выключенные сенсорные чей ки.,5The disadvantage of this device 51 is low noise immunity, due to the possibility of the information passing through the switched off sensor ki., 5

Наиболее близким к гзобретению вл етс сенсорный переключатель., содержащий генератор пр моугольных импульсов , М сенсорных чеек, кажда из которыУ . состоит из элемента Ис двум вхо- 20 дами, у которого первый вход соединен с сенсорным полем и одним из выводов регистра, и R -триггера, у которого первый вход соединен с выходом элеме та И. Кроме того, в этом сенсорном переключателе второй вывод резистора соединен с выходом; генератора пр моугольных импульсов, второй вход элемента Ис инвертированным по фазе выходом генератора пр моугольных импульсов, а вто - рой вход RS -триггера - с выходом Другого элемента И 2,Closest to the invention is a touch switch, comprising a square pulse generator, M sensor cells, each of which is. consists of an element Is with two inputs, in which the first input is connected to the sensor field and one of the register outputs, and R is a trigger, in which the first input is connected to the output of the element I. In addition, this sensor switch has a second output resistor connected to the outlet; the generator of rectangular pulses, the second input of the element Ic by the phase inverted generator of the output of the rectangular pulses, and the second input of the RS trigger, with the output of the Other element I 2,

Недостатком известного устройства вл етс также низка помехоустойчивость , так как при включении одной из чеек возможно включение других.A disadvantage of the known device is also low noise immunity, since when one of the cells is turned on, it is possible to turn on the others.

Цегаь изобретени - повышение помехоустойчивости сенсорного переключател .The invention is designed to increase the noise immunity of the touch switch.

Claims

The goal is achieved by the fact that a sensor switch containing a generator of direct impulses, M sensory cells, each of which consists of an AND element with two inputs, the first input of which is connected to the sensor field and one of the resistor terminals, and the RS trigger, the first the input of which is connected to the output of the element I, the T-flip-flop, the pulse distributor and into each sensing cell X) trip p are entered, the counting input of the T-flip-flop is connected to the output of the generator of direct impulses, the first Ttrigger output - with the first input The home distribution of pulses and the second output of the resistor of each sensor cell, and the second output - with the second input of the element I of each sensor cell and the second input of the pulse distributor, the third output of which is connected to the output of the square pulse generator, the second input of the RS-trigger of each cell is connected Bdnim of the first outputs of the distribution of impulse bodies, the output of P & -triggera - with informational input corresponding to a Brain D-flip-flop, synchronizing. the input is connected to one of the second outputs of the pulse distributor. The drawing shows a functional diagram of the touch switch. The touch switch contains a square pulse generator 1, T-flip-flop 2, pulse distributor 3, sensor fields 4, resistors 5, elements AND 6, RS-triggers 7 and 1) triggers 8. Output 9 of the square impulse generator 1 is connected to the input 1O Ttrigger 2, Output 11 of T-flip-flop 2 via resistors 5 connected to sensor fields 4 connected to the winding 12 elements And 6, the second inputs 13 of which are Connected to output 14 of the T-flip-flop 2. The outputs 15 of the Eschements And are connected to the input 16 RS -triggers 7, the second inputs 17 of which are connected to the output 18 of the distributor impulse 3. The input 1 of the distributor of impuls 3 is connected to the output 9 of the generator of rectangular pulses 1, and the outputs 20 and 21 are connected respectively to the outputs 11. and 14 of the Trigger

2. The output 22 of the distributor pulses 3 is connected to the synchronizing inputs 23 of the D-flip-flops 8, information inputs 24 of which are connected to the outputs of the 25 RS-triggers 7, and the loads 26 are connected to the outputs 26 of the D-triggers 8. The switch works as follows. The generator 1 of rectangular pulses produces a voltage with a frequency on the order of several tens of Hertz, which in a logical form can be represented as G. The pulses at the outputs 11 and 14 of the T-flip-flop 2 are in antiphase. . These two signals in logical form can be represented as A and A. Signal A is fed to input 12 of element 6, and the signal to input 13. Signal at output 15 of element 6 is equal to AA 3, When you touch the touch pop 4 with your finger between the T1 flip-flop 11T and 11 of the element 6 and the input 6 is connected to the integrating circuit, consisting of a resistor 5 and the operator's own capacitance relative to ground. As a result, at the input .12 of the element And there is a delay of the trailing edge of the pulse, during which at both inputs 12 and 13 of the element And 6 there are signals, and at the output 15 a signal O, which is acceptable. in the R 5-trigger 7 at the output 25, it pushes the state. A synchronization pulse from the output 22 of the distributor impulse, 3, which is obtained under the condition of GA-Ij, the current state from the output 25 of the RS-flip-flop 7 is recorded in the D-flip-flop 8. The impulse from w 1Hyd 18 of the pulse distributor 3, which is obtained / subject G.AO, sets in R $ -trigger 7 on the top 25 of the state O, as if the touch field 4 with a finger at the output 26 of the D-flip-flop 8 sets the state, and if it doesn’t touch, the state O. PreDLagaeKa 1st touch switch in comparison with the existing one, combines high n (1 tolerance, the ability to switch loads by using a single control element, and using only one hinged element — a resistor — allows it to be performed in an integral manner. Claims A touch switch comprising a square pulse generator, M sensor cells, each of which consists of And with two inputs, the first input of which is connected to the sensor field and one and; wir 1vodov resistor, and RS-trigger, the first input of which is connected to the output of the element I, about the TL and tea, and then, in order to improve noise immunity, T-flip-flop, pulse distributor and D-flip-flop sensor are entered into it, the Trigger count input is connected: the output of the square pulse generator, the first T-flip-flop output - with the first input of the pulse distributor and the second pin of the resistor of each sensor cell, and the second