CN103640954A

CN103640954A - Controller for automatically shutting down escalator during nobody taking

Info

Publication number: CN103640954A
Application number: CN201310688197.8A
Authority: CN
Inventors: 何林
Original assignee: 何林
Current assignee: Wuxi Xidong New Rural Investment Development Co.,Ltd.
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-03-19
Anticipated expiration: 2033-12-16
Also published as: CN103640954B

Abstract

The invention relates to a controller for automatically shutting down an escalator during nobody taking. The controller is characterized by comprising a 12V direct-current power source, a microwave induction and detection circuit, a monostable delay circuit and a direct-current relay drive circuit, wherein a microwave induction controller IC1 of the microwave induction and detection circuit adopts a TX982 model, the monostable delay circuit consists of a time-base circuit IC2, a resistor R1, a timing capacitor C1 and a direct-current relay J, and the time-base circuit IC2 adopts an NE 555 model. At present, a frequently-used escalator in a market or a subway operates at the constant speed during loading or zero load, and has the defects of large energy consumption, large mechanical abrasion, short service life and the like; the high-sensitivity microwave induction controller is adopted, microwave electric fields are established at an entrance and an exit at two ends of the escalator and in a passage of the escalator, so that the normal and continuous operation of the escalator is maintained when passengers take the escalator, and the operation of the escalator is stopped automatically when the passengers leave; and accordingly, the energy is saved, and the mechanical abrasion of the escalator is reduced.

Description

The unmanned boarding of the staircase controller of automatically stopping transport

Technical field

The invention belongs to electricity-saving control technology field, relate to the unmanned boarding of a kind of staircase controller of automatically stopping transport.

Background technology

At present, when in market, subway, conventional escalator has load or zero load, are all constant-speed operations, there is the defects such as power consumption is large, mechanical wear is large, service life is low.By the preliminary test and appraisal to 2 escalators, every staircase power of motor is 11KW, turns round every day 8 hours, and be all constant speed operation all the time, in most of the cases, staircase runs on below 2/3 of rated passenger capacity more, nearly 3 hours of every staircase unmanned no-load run time cumulation every day.If staircase is stopped transport or slowly operation when unmanned zero load, will greatly reduce staircase motor power consumption, reduce unnecessary mechanical wear.If staircase operation scheme is by the every day of normal constant-speed operation when continuous constant-speed operation has changed people's boarding into, automatically out of service during unmanned boarding, just can realize and economizing on electricity and the object in increase staircase service life.

Through engineering practice, prove, adopt highly sensitive microwave induction controller, it sets up microwave electric field in the gangway, two ends of staircase and passage thereof, when microwave antenna has detected passenger taken advantage of staircase in guarded region, microwave electric field can produce reflection echo, through electronic circuit mixing post-detection, go out faint frequency-shift signaling, this signal is processed through the micro controller system of microwave induction controller IC1 inside, when escalator can be realized the successive boarding of passenger through simple transformation, staircase keeps normal operation, and when last passenger leaves staircase, staircase is automatically out of service.Realized and both saved the energy, reduced again the mechanical wear of staircase.

Below describe the unmanned boarding of the staircase of the present invention controller related relevant technologies content in implementation process of automatically stopping transport in detail.

Summary of the invention

Goal of the invention and beneficial effect: at present, when conventional escalator has load or zero load in market, subway, are all constant-speed operations, there is the defects such as power consumption is large, mechanical wear is large, service life is low.Through engineering practice, prove, adopt highly sensitive microwave induction controller, it sets up microwave electric field in the gangway, two ends of staircase and passage thereof, when microwave antenna has detected passenger taken advantage of staircase in guarded region, microwave electric field can produce reflection echo, through electronic circuit mixing post-detection, go out faint frequency-shift signaling, this signal is processed through the micro controller system of microwave induction controller IC1 inside, when escalator can be realized the successive boarding of passenger through simple transformation, staircase keeps normal operation continuously, when last passenger leaves staircase, staircase is automatically out of service.Realized and both saved the energy, reduced again the mechanical wear of staircase.

Circuit working principle: the unmanned boarding of staircase is stopped transport controller automatically by 12V direct-current power supply microwave induction controller IC1(TX982) and time base circuit IC2 work.It sets up microwave electric field in the gangway, two ends of staircase and passage thereof, when having detected passenger, microwave antenna in guarded region, takes advantage of staircase, microwave electric field can produce reflection echo, through electronic circuit mixing post-detection, go out faint frequency-shift signaling, this signal is processed through the micro controller system of microwave induction controller IC1 inside, again by inner aerotron conducting 8～12 seconds, by the 2nd pin output low level of the microwave induction controller IC1 charge discharging resisting being enough to chemical capacitor C1 of holding time, fallen.By time base circuit IC2, form monostable time delay circuit, when the 2nd pin of base IC circuit 2 is lower than 1/3 direct supply voltage at that time, the 3rd pin output high level of time base circuit IC2, drive DC relay J adhesive, by DC relay J open contact J-1, connected the source of AC of staircase motor, make staircase keep normal operation; The delay time that resistance R 1 and timing capacitor C1 form approximately 2～3 minutes.Because delay time is set shortlyer, if someone takes advantage of after staircase, staircase motor will auto-breaking after 2～3 minutes, if there is successively passenger using staircase in the gangway, two ends of staircase and passage thereof, microwave induction controller IC1 will trigger single stabilization delay circuit work repeatedly, make the 3rd pin of time base circuit IC2 uninterruptedly export high level and keep DC relay J adhesive, the open contact J-1 of DC relay J will remain the state of motor connection source of AC.In order to guarantee automatically the stop transport high reliability of controller work of the unmanned boarding of staircase, can respectively install 1 in the appropriate location, gangway, two ends of staircase, and use the open contact J-1 of 2 DC relay J is in parallel.

Technical characterictic: the unmanned boarding of the staircase controller of automatically stopping transport, it comprises 12V direct supply, microwave induced and detecting circuit, monostable time delay circuit and DC relay driving circuit, it is characterized in that:

Microwave induced and detecting circuit: the model that microwave induction controller IC1 adopts is TX982, the anodal VCC of the 1st pin connection circuit of microwave induction controller IC1, the 2nd pin of microwave induction controller IC1 connects the 2nd pin and the 6th pin of time base circuit IC2, the 3rd pin connection circuit ground GND of microwave induction controller IC1, the two ends of loop antenna TX connect respectively the antenna terminal of microwave induction controller IC1;

Monostable time delay circuit: it is comprised of time base circuit IC2, resistance R 1, timing capacitor C1 and DC relay J, the model that time base circuit IC2 adopts is NE555, the anodal VCC of the 4th pin of time base circuit IC2 and the 8th pin connection circuit, the 2nd pin of time base circuit IC2 is connected with one end of resistance R 1 and the positive pole of timing capacitor C1 with the 6th pin, the anodal VCC of other end connection circuit of resistance R 1, the 1st pin of time base circuit IC2 and the negative pole connection circuit of timing capacitor C1 ground GND;

DC relay driving circuit: it is comprised of DC relay J and switching diode D1, the 3rd pin of time base circuit IC2 connects one end of DC relay J coil and the negative pole of switching diode D1, the anodal connection circuit ground GND of the other end of DC relay J coil and switching diode D1, DC relay J open contact J-1 connects staircase circuit for controlling motor;

The anodal VCC of anodal connection circuit of 12V direct supply, the negative pole of 12V direct supply is connected with circuit ground GND.

Accompanying drawing explanation

Accompanying drawing is automatically stop transport an embodiment circuit working schematic diagram of controller of the unmanned boarding of staircase.

The specific embodiment

According to the unmanned boarding of staircase shown in the drawings automatically stop transport controller circuitry fundamental diagram and accompanying drawing explanation, and according to annexation between components and parts in the each several part circuit described in summary of the invention, and the components and parts technical parameter described in embodiment requires and circuit production main points are implemented to realize the present invention, below in conjunction with embodiment, correlation technique of the present invention is further described.

The selection of components and parts and technical parameter

IC1 is microwave induction controller, and that select is TX982, and TX982 is inner containing microprocessor, operating voltage 6～15V of microwave induction controller IC2; The 1st pin (red line) of microwave induction controller IC2 connects positive source, the 2nd pin (white wire) of microwave induction controller IC2, and the 3rd pin of microwave induction controller IC2 (copper mesh line or other colo(u)r streak) connects DC power cathode;

IC2 is time base circuit, and the model of selecting is NE555 or LM555, and packing forms is dual inline type 8 pins; Each pin function: the 1st pin connection circuit ground GND; The 2nd pin is trigger end; The 3rd pin mouth; The 4th pin preset end; The 5th pin is for controlling voltage; The 6th pin thresholding (threshold value); The 7th pin is discharge end; The 8th pin meets positive source VCC;

D1 is switching diode, and the model of selecting is 1N4148;

Resistance R 1 is selected 1/4～1/2W metal film resistor, and its resistance is 560K Ω;

C1 is timing capacitor, and selecting capacity is the chemical capacitor of 220 μ F/16V;

J is DC relay, selects JRX-13F type 12V DC relay, and DC relay has 5 pin, and wherein the coil of DC relay J has 2 pin, and 3 outputs are controlled pin and formed respectively open contact J-1 and normally closed contact J-2.

Circuit production main points and circuit debugging

The shell that should be specifically noted that electric soldering iron during welding is must ground connection good, to avoid the induced voltage of alternating current to puncture microwave induction controller IC1 internal electronic element!

Loop antenna TX can directly be used the loop antenna configuring with microwave induction controller TX982 product;

The time delay length of monostable time delay circuit, resistance that can regulating resistance R1, or regulate the capacity of timing capacitor C1; Requirement is by the open contact J-1 of the DC relay J of 2 use in parallel;

Safety for passenger's boarding, this controller should be arranged on respectively appropriate location, gangway, staircase two ends, require exactly to guarantee that first passenger steps into first pedal of staircase 1.5～2m distance before, the loop antenna of microwave induction controller can receive the induced signal of human body in advance, make staircase motor immediate unlock, rather than passenger just starts staircase motor after setting foot on pedal for escalator;

The human body sensing distance of microwave induction controller IC1 is about 5～7m.

Claims

1. the unmanned boarding of the staircase controller of automatically stopping transport, it comprises 12V direct supply, microwave induced and detecting circuit, monostable time delay circuit and DC relay driving circuit, it is characterized in that:

In described microwave induced and detecting circuit, the model that microwave induction controller IC1 adopts is TX982, the anodal VCC of the 1st pin connection circuit of microwave induction controller IC1, the 2nd pin of microwave induction controller IC1 connects the 2nd pin and the 6th pin of time base circuit IC2, the 3rd pin connection circuit ground GND of microwave induction controller IC1, the two ends of loop antenna TX connect respectively the antenna terminal of microwave induction controller IC1;

Described monostable time delay circuit and by time base circuit IC2, resistance R 1, timing capacitor C1, the model that time base circuit IC2 adopts is NE555, the anodal VCC of the 4th pin of time base circuit IC2 and the 8th pin connection circuit, the 2nd pin of time base circuit IC2 is connected with one end of resistance R 1 and the positive pole of timing capacitor C1 with the 6th pin, the anodal VCC of other end connection circuit of resistance R 1, the 1st pin of time base circuit IC2 and the negative pole connection circuit of timing capacitor C1 ground GND;

Described DC relay driving circuit is comprised of DC relay J and switching diode D1, the 3rd pin of time base circuit IC2 connects one end of DC relay J coil and the negative pole of switching diode D1, the anodal connection circuit ground GND of the other end of DC relay J coil and switching diode D1, DC relay J open contact J-1 connects staircase circuit for controlling motor;

The anodal VCC of anodal connection circuit of described 12V direct supply, the negative pole of 12V direct supply is connected with circuit ground GND.