CS273076B1 - Electronic connection for contactless piping control - Google Patents

Electronic connection for contactless piping control Download PDF

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Publication number
CS273076B1
CS273076B1 CS579988A CS579988A CS273076B1 CS 273076 B1 CS273076 B1 CS 273076B1 CS 579988 A CS579988 A CS 579988A CS 579988 A CS579988 A CS 579988A CS 273076 B1 CS273076 B1 CS 273076B1
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Czechoslovakia
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amplifier
output
power
pulse generator
receiving
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CS579988A
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Czech (cs)
Slovak (sk)
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CS579988A1 (en
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Marian Ing Lednicky
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Marian Ing Lednicky
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Priority to CS579988A priority Critical patent/CS273076B1/en
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Publication of CS273076B1 publication Critical patent/CS273076B1/en

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Abstract

The electronic connection consists of the transmitting part (1) and receiving part (2), where the transmitting part (1) consists of the pulse generator (3) with a power amplifier (4) and transmitting diode (5), and where the receiving part (2) consists of the receiving diode (6), first amplifier (7) and second amplifier (8), whose output (9) is connected with the power switching element (13) along with the output (10) of the pulse generator (3). The goal is to create such an electronic system for contactless control of armatures, especially of the sanitary character, that would achieve increase in setting sensitivity as well as increase of working range by simple technical means. This is accomplished by the fact that the output (9) of the second amplifier (8) and output (10) of the pulse generator (3) is connected to the power switching element (13) via the comparison coincidence circuit (11) serially connected delay element (12), and the power amplifier (4) is equipped with the power controller (14), while the second amplifier (8) is equipped with the gain controller (15).<IMAGE>

Description

Vynález sa týká elektronického zapojenia pre bezdotykové ovládanie armatúr.The invention relates to an electronic circuit for contactless actuation of fittings.

Bodla známého stavu techniky bývá u elektronických zapojení tohto druhu (švajčiarsky patent č. 653 726) pevne nastavený výkon vysielača a pevne nastavený zisk přijímače. Vytvorenie nastavitelného pracovného dosahu vo vaošom rozpatí snímania, tj. od coa 10 do 90 om, je u takéhoto zariadenia možné len s obtiažami. Ďalšou nevýhodou tohto známého zariadenia je, že pri krátkodobom oddialení reílexnej plochy, například ruky z pracovného dosahu snímača, sa elektromagnetický ventil ihned vypíná, čo v reálných podmienkach aplikácie známého zapojenia može viesť k poruchovosti armatury v dósledku nadměrného počtu otváracíoh cyklov.In the electronic circuit of this type (Swiss Patent No. 653,726), the power of the transmitter and the fixed gain of the receiver are fixed in the prior art. Create an adjustable working range within your scanning range, ie. from 10 to 90 µm, such a device is only possible with difficulty. A further disadvantage of this known device is that when the reflective surface, for example a hand, is removed from the sensor's operating range for a short time, the solenoid valve switches off immediately, which can lead to valve failure due to an excessive number of opening cycles.

Uvedené nevýhody odstraňuje elektronické zapojenie pódia vynálezu, ktorého podstata spočívá v tom, že výstup druhého zosilňovača prijímacej časti a výstup generátore impulzov vo vysielaoej časti je na výkonový spínací člen zapojený oez porovnávací sú- . činový obvod a s ním do série zapojený oneskorovaoí člen. Koncový zosilňovač vysielacej časti je opatřený riadiacim členom výkonu, zatial’ čo druhý zosilňovač prijímacej časti je opatřený riadiacim členom zisku.These drawbacks are eliminated by the electronic circuitry of the invention, which is characterized in that the output of the second amplifier of the receiving part and the output of the pulse generator in the transmitting part are connected to the power switching member by means of a comparator. a power circuit and a series of delay elements connected thereto. The power amplifier end amplifier is provided with a power control member, while the second gain portion amplifier is provided with a gain control member.

AA

Výhodou elektronického zapojenia pódia vynálezu je, že relativné jednoduchými prostriedkami sa dosiahne výrazné zlepšenie úžitkovýoh vlastností zariadenia, najma pokial’ ide o možnosť jemnejšieho a širšieho nastavenia pracovného rozsahu, ako aj o vytvorenie nastaviteinej histerézie rozopnutia solenoidového ventilu, čímsa zníži počet krátkodobých zopnutí a rozopnutí armatury čo priaznivo ovplyvňuje životnosť solenoidového ventilu. Zariadenie má tiež vyššiu odolnost’ vóči vonkajším rušivým signálom.The advantage of the electronic connection according to the invention is that by relatively simple means a significant improvement of the utility properties of the device is achieved, in particular in terms of finer and wider adjustment of the operating range, as well as creating adjustable histeresis of solenoid valve opening. which favorably affects the service life of the solenoid valve. The device also has a higher immunity to external interference signals.

Příklad zapojenia podl’a vynálezu je znázorněný na obrázku v podobě blokovej schémy.An example of a wiring according to the invention is shown in the diagram in the form of a block diagram.

Elektronické zapojenie pódia vynálezu pozostáva z vysielaoej časti 1. a z přijímače j časti 2. Vysielaoia časť 1_ obsahuje generátor 2 impulzov s koncovým zosilňovačom 4 a s vysielaoou diodou £. Prijíraaoia časť 2 obsahuje prijímaoiu diodu 6, prvý zosilnovač 7 a druhý zosilňovač 8/ktorého výstup 9 je spolu s výstupom 10 generátore 3 impulzov prostredníotvom porovnávacieho a súoinového obvodu 11. ako aj oez oneskorovaoí člen 12 zapojený na výkonový spínací člen 13. Koncový zosilňovač 4, vysielaoej časti 1 je opatřený riadiacim členom 14 výkonu, zatiai čo druhý zosilňovač 8 -prijímacej časti 2 je opatřený riadiacim členom 15 zisku.The electronic circuitry according to the invention consists of a transmitting part 1 and a receiver 1 of part 2. The transmitting part 1 comprises a pulse generator 2 with a terminal amplifier 4 and a emitting diode 6. The receiving part 2 comprises a receiving diode 6, a first amplifier 7 and a second amplifier 8 / whose output 9, together with the output 10 of the pulse generator 3, is connected to the power switching member 13 by means of the comparator and storage circuit 11 as well as the delay member 12. The transmitting portion 1 is provided with a power control member 14, while the second amplifier 8 of the receiving portion 2 is provided with a gain control member 15.

Generátor J impulzov vyrába impulzy s určitou frekvenoiou a moduláciou. Výstup 10 generátore 2 3® vedený do koncového zosilňovača £, ktorý obsahuje riadiaoi člen 14 výkonu. Takto je možné plynule meniť vysielaný světelný výkon infračervenou vysielacou diodou 2> 2ín sa dosiahne změna, pracovného dosahu zariadenia. Modulované infračervené impulzy po odraze od reflexnej-plochy naohádzajúcej sa v pracovnom dosahu zariadenia sú premenené na elektrický signál infračervenou prijíraacou diodou 6. Elektrický signál je zosilnený v prvom zo3ilňovači 2 přijímače, ktorý má pevne nastavené zosilnenie a robí prisposobenie medzi prijímaoou diodou 6 a druhým zosilňovačom 8, ako i odfiltrovanie rušivých signálov. Druhý zpsilňovač 8 přijímače má plynule regulovatelný zisk pomooou riadiaceho člena 15- zisku. Takýmto zapojením je možné pri prednastavenom výkone vysielača veími prosno a oitlivo nastavovať pracovný dosah zariadenia. Výstup 2 druhého zosilňovača 8 přijímače je na porovnávaoom a súčinovom člene 11 porovnávaný so signálom generátore 2· Pokial’ tiijto signály sú v rovnakej fáze a signál z druhého zosilňovača 8 dosahuje určitú prahovú úroveň, porovnávací a súčinový obvod 11 vyrobí impulz, ktorý dává pokyn výkonovémuspínaciemu členu 13 na zopnutie elektromagnetického ventilu 16. Takýmto zapojením sa- dosiahne velmi dobrá odolnosť voci rušiacim signálom, pretože sa porovnává nielen úroveň, ale i fáza obooh signálov. Medzi porovnávacím a súčinovým členom 11 a výkonovým spínacím členom 13 je zapojený oneskorovaoí člen 12 s nastavitelnou histeréziou rozopnutia. Funkčně tento člen zabezpečí, že po oddialení reflexnej plochy z pracovného dosahu zariadenia, elektromagnetický ventil 16 zotrváva v zopnutom stave, po dobu vopred. nastavená. Týmto sposobom sú vylúčené okamihovéThe pulse generator J produces pulses with a certain frequency and modulation. The output 10 of the generator 23 is fed to an output amplifier 8 which includes a power control member 14. In this way, it is possible to continuously vary the transmitted light output by an infrared emitting diode 2 > The modulated infrared pulses after reflection from the reflective surface within the operating range of the device are converted into an electrical signal by an infrared receiving diode 6. The electrical signal is amplified in a first receiver amplifier 2 having a fixed gain and making an adjustment between the receiving diode 6 and the second amplifier. 8 as well as filtering out interfering signals. The second receiver amplifier 8 has a continuously adjustable gain by the gain control member 15. With this connection, the working range of the device can be adjusted very easily and sensitively at the preset power of the transmitter. The output 2 of the second amplifier 8 of the receiver is compared to the generator 11 on the comparator and the product 11. When these signals are in the same phase and the signal from the second amplifier 8 reaches a certain threshold, the comparator and the product circuit 11 produces a pulse that instructs the power boost By this connection, a very good immunity against disturbing signals is achieved, since not only the level but also the phase of the two signals are compared. Between the comparator and the product 11 and the power switching member 13, a delay member 12 with adjustable histeresis of the opening is connected. Functionally, this member ensures that after the reflective surface has been moved away from the operating range of the device, the solenoid valve 16 remains in the switched-on state for a period of time in advance. set. In this way, momentary ones are excluded

CS 273 076 B1 rozopnutia a následné zopnutia elektromagnetického ventilu 16, čím sa podstatné zvýši jeho spolehlivostí a životností ako i zabezpečí plynulý chod armatury.CS 273 076 B1 opens and then closes the solenoid valve 16, thereby substantially increasing its reliability and service life as well as ensuring the smooth operation of the valve.

Opísaný elektronický systém je zrejme možné aplikovat’ bez úprav i v iných oblastiach reguláoie a automatizácie.Apparently, the electronic system described can be applied to other areas of regulation and automation without modification.

Claims (1)

Elektronioká zapojenie pre bezdotykové ovládanie armatur, pozostávajúce z vysielacej časti a z prijímacej časti, kde vysielaoia častí obsahuje generátor impulzov a koncovým zosilňovačom a s vysielaoou diodou, a kde prijímaoia častí obsahuje prijímaciu diodu, prvý zosilňovač a druhý zosilňovač, ktorého výstup je spolu s výstupom generátore impulzov napojený na výkonový spínací člen, vyznačujúci sa tým, že výstup (9) druhého zosilňovača (8) a výstup (10) generátore (3) impulzov je na výkonový spínací člen (13) napojený oez porovnávací súčinový obvod (11) a s ním do série zapojený oneskorovaoí člen (12), a koncový zoellňovač (4) je opatřený riadiacim členom (14) výkonu, zatial' čo druhý zosilňovač (8) je opatřený riadiacim členom (15) zisku.Electronically wired for non-contact valve control, consisting of a transmitting part and a receiving part, wherein the transmitting part comprises a pulse generator and a terminal amplifier and a emitting diode, and wherein the receiving part comprises a receiving diode, a first amplifier and a second amplifier connected to a power switching member, characterized in that the output (9) of the second amplifier (8) and the output (10) of the pulse generator (3) are connected to the power switching member (13) via a comparative product circuit (11) and in series a connected delay member (12), and the end enhancer (4) is provided with a power control member (14), while the second amplifier (8) is provided with a gain control member (15).
CS579988A 1988-08-29 1988-08-29 Electronic connection for contactless piping control CS273076B1 (en)

Priority Applications (1)

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CS579988A CS273076B1 (en) 1988-08-29 1988-08-29 Electronic connection for contactless piping control

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CS579988A CS273076B1 (en) 1988-08-29 1988-08-29 Electronic connection for contactless piping control

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CS273076B1 true CS273076B1 (en) 1991-03-12

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