CN201520580U

CN201520580U - Elevator light curtain system control circuit

Info

Publication number: CN201520580U
Application number: CN2009202287180U
Authority: CN
Inventors: 姜连才
Original assignee: WUHAN INTELLIGENCE ELEVATOR CO Ltd
Current assignee: WUHAN INTELLIGENCE ELEVATOR CO Ltd
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2010-07-07
Anticipated expiration: 2019-09-30

Abstract

The utility model relates to the field of elevator control, in particular to an elevator light curtain system control circuit which is characterized by comprising a voltage comparator chip, a triode and a relay, wherein the base electrode of the triode is connected with a signal output end of the voltage comparator chip, the emitting electrode thereof is grounded, and the collector electrode thereof is connected with the relay; and return signals of a transmitting controller and a receiving controller are received, simulated and analyzed by the voltage comparator chip and then whether the triode is triggered is judged, thus causing the relay to pull in or release, and transmitting a contact signal of the relay to a control system of an elevator upper computer.

Description

A kind of elevator light curtain system, control circuit

Technical field

The utility model relates to elevator control field, particularly a kind of elevator light curtain system, control circuit.

Technical background

The automatically-controlled door anti-pinch people protection system that existing market exists adopts machine security touch panel and mechanical microswitch interlock mostly or adopts photoelectric switch control, but adopt safety edge and micro-switch to do the time spent, reaction is slow, must bump against the people or object could move on one's body; Though the photoelectric switch action is fast, but realize the no touch action, but, have only a light because of its light is single, and the scope that can protect is very limited, and can only have object to block on certain bar line could move.Therefore though safety edge and its structure of photoelectric switch are simple, good safety of guarantor or object all.And, be not suitable for the automatically-controlled door and the medium-to-high grade lift product in medium-to-high grade place because of its technical merit is low.

Summary of the invention

Technical problem to be solved in the utility model is: the elevator light curtain system, control circuit that a kind of safe and reliable, function admirable is provided.

The technical scheme that the above technical matters that solves the utility model adopts is: a kind of elevator light curtain system, control circuit, its difference is: comprise the voltage comparator chip, aerotron, relay, the base stage of aerotron is connected the signal output part of voltage comparator chip, the grounded emitter of aerotron, the collecting electrode of aerotron is connected with relay, the return signal of mission controller and reception controller receives also through the voltage comparator chip and judges whether trigger triode after the sunykatuib analysis, cause relay adhesive or release, thereby send the relay tip signal to the elevator upper computer control system.

The contrast prior art, useful advantage of the present utility model is:

The return signal of mission controller and reception controller receives also through the voltage comparator chip and judges whether trigger triode after the sunykatuib analysis, causes relay adhesive or release, thereby sends the relay tip signal to the elevator upper computer control system.Have or not between voltage comparator chip detection mission controller and the reception controller and block, if any blocking, the elevator light curtain system, control circuit then sends the relay tip signal and gives the elevator upper computer control system, thereby realizes anti-pinch people (folder thing) function.

Description of drawings

Fig. 1 is the schematic circuit diagram of the utility model elevator light curtain system, control circuit;

Fig. 2 is that the tetrameric circuit of singlechip control panel, light curtain power supply, mission controller, the reception controller of elevator light curtain system connects schematic block diagram;

Fig. 3 is the circuit card schematic diagram of the utility model mission controller;

Fig. 4 receives the circuit card schematic diagram of controller for the utility model.

The specific embodiment

Fig. 1 is the schematic circuit diagram of the utility model elevator light curtain system, control circuit; As shown in Figure 1, a kind of elevator light curtain system, control circuit, comprise voltage comparator chip LM339, aerotron T1, relay J ZC-32F, the base stage of aerotron T1 is connected the signal output part of voltage comparator chip LM339, the grounded emitter of aerotron T1, the collecting electrode of aerotron T1 is connected with relay J ZC-32F, the signal of mission controller and reception controller receives also through voltage comparator chip LM339 and judges whether trigger triode T1 after the sunykatuib analysis, cause relay J ZC-32F adhesive or release, thereby send the relay tip signal to the elevator upper computer control system.The elevator light curtain system, control circuit is the partial circuit unit on the singlechip control panel.

Fig. 2 is that the tetrameric circuit of singlechip control panel, light curtain power supply, mission controller, the reception controller of elevator light curtain system connects schematic block diagram; As shown in Figure 2, a kind of elevator light curtain system, comprise singlechip control panel and light curtain power supply, mission controller, the reception controller of powering to singlechip control panel, the end that transmits of singlechip control panel is connected with the signal end of mission controller, the received signal end of singlechip control panel is connected with the signal end that receives controller, and the control signal output ends of singlechip control panel is connected with the elevator upper computer control system.

Elevator light curtain system works principle: infrared emission tube, the corresponding respectively both sides (infrared emission tube, infrared receiver tube, elevator door do not draw in Fig. 2) that are installed in elevator door of each row of infrared receiver tube, two transmitting and receiving in the elevator door both sides of infrared tube of row form the light curtain about elevator door thereby singlechip control panel is used to control.

Fig. 3 is the circuit card schematic diagram of the utility model mission controller; As shown in Figure 3, C8051F231 is a singlechip chip, and ULN2803 is the chip of control infrared emission tube special use, and wherein C8051F231 passes through programming control ULN2803, thereby makes T1, T2, T3, T4 can control the emission of each infrared tube on the expelling plate.

Fig. 4 receives the circuit card schematic diagram of controller for the utility model, as shown in Figure 4, micro controller system C8051F231 controls the reception of each adoptor, by TL3472CD chip (IC1A, IC1B are the circuit unit of TL3472CD chip among Fig. 4) signal that receives from infrared tube is compared and enlarged and various significance arithmetic simultaneously, and send last reception result to power supply and control desk.

Special version: the different piece that is respectively applied for the indication circuit module because of Fig. 1, Fig. 3, Fig. 4, not to be used to represent same embodiment, therefore represented technical characterictic or the object of same label may be consistent among Fig. 1, Fig. 3, Fig. 4, also may be inconsistent, be the circuit unit of LM339 voltage comparator chip such as IC1A, IC1B among Fig. 1, and IC1A, IC1B are the circuit unit of TL3472CD chip among Fig. 4; Do not enumerate one by one at this.

Above embodiment is preferred embodiment of the present utility model; be not that utility model is done any type of restriction; every foundation technological essence of the present utility model all still belongs in the protection domain of the present utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1. elevator light curtain system, control circuit, it is characterized in that: comprise voltage comparator chip (LM339), aerotron (T1), relay (JZC-32F), the base stage of aerotron (T1) is connected the signal output part of voltage comparator chip (LM339), the grounded emitter of aerotron (T1), the collecting electrode of aerotron (T1) is connected with relay (JZC-32F), the signal of mission controller and reception controller receives also through voltage comparator chip (LM339) and judges whether trigger triode (T1) after the sunykatuib analysis, cause relay (JZC-32F) adhesive or release, thereby send the relay tip signal to the elevator upper computer control system.