CN103626018A

CN103626018A - Controller for controlling escalator to automatically run at half speed in case of no person

Info

Publication number: CN103626018A
Application number: CN201310688252.3A
Authority: CN
Inventors: 周芸
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-03-12

Abstract

The invention relates to a controller for controlling an escalator to automatically run at half speed in case of no person. The controller is characterized by comprising a 6V direct current power supply, an infrared signal detection circuit, a level phase inversion circuit, a monostable time delay circuit, a direct current relay driving circuit and a state indicating circuit, wherein the model number of a pyroelectric infrared detection module IC1 of the infrared signal detection circuit is BH9402; the monostable time delay circuit consists of a time-base circuit IC2, a resistor R2 and an electrolytic capacitor C1; the model number of the time-base circuit IC2 is NE555; the direct current relay driving circuit consists of a direct current relay J and a switch diode D1. The controller disclosed by the invention can control the escalator to keep running at normal speed under a condition that passengers take the escalator continuously until the last passenger leaves the escalator; after the last passenger leaves the escalator, the escalator automatically runs at half speed, so that energy is saved, and the mechanical abrasion to the escalator can be alleviated.

Description

The automatic Half Speed operation controller of the unmanned boarding of escalator

Technical field

The invention belongs to economize on electricity and electron controls technology field, relate to the automatic Half Speed operation controller of the unmanned boarding of a kind of escalator.

Background technology

At present, market, the automatic escalator that subway is conventional are all constant-speed operations while having load or zero load, have the defects such as power consumption is large, mechanical wear is large, service life is short.By the in situ measurement to 2 escalators, every escalator power of motor is 11KW, every day was with running in 8 hours, and be all to move with constant speed all the time, in most of the cases, escalator runs on below 2/3 of rated passenger capacity more, and every escalator every day was without nearly 3 hours of passenger's no-load run time cumulation.If escalator operation scheme is moved with normal speed when every day, continuous constant-speed operation changed people's boarding into, during without passenger's boarding, automatically transfer Half Speed operation to, just can realize the object that reduces energy consumption and increase escalator service life.

Through engineering practice, show: adopt highly sensitive rpyroelectric infrared detecting module, it is arranged near the gangway, two ends of escalator, when rpyroelectric infrared detecting module has received passenger taken advantage of escalator in guarded region, rpyroelectric infrared detecting module detects after the infrared signal of passenger's radiation, after electronic circuit is processed infrared signal, in the time of can realizing the continuous boarding of passengers, escalator keeps normal speed operation, and to the last a passenger leaves escalator; In the end a passenger leaves after escalator, and escalator transfers Half Speed operation automatically to, has realized and has both saved the energy, can reduce again the mechanical wear of escalator.

Below describe the automatic Half Speed operation controller of the unmanned boarding of escalator of the present invention related relevant technologies content in implementation process in detail.

Summary of the invention

Goal of the invention and beneficial effect: adopt highly sensitive rpyroelectric infrared detecting module, it is arranged near the gangway, two ends of escalator, when rpyroelectric infrared detecting module has received passenger taken advantage of escalator in guarded region, rpyroelectric infrared detecting module detects after the infrared signal of passenger's radiation, after electronic circuit is processed infrared signal, in the time of can realizing the continuous boarding of passengers, escalator keeps normal speed operation, and to the last a passenger leaves escalator; In the end a passenger leaves after escalator, and escalator transfers Half Speed operation automatically to, has realized and has both saved the energy, can reduce again the mechanical wear of escalator.

Circuit working principle: the circuit used time base IC circuit 2 of the automatic Half Speed operation controller of the unmanned boarding of escalator is connected into monostable time delay circuit, the 3rd pin output low level of time base circuit IC2 now, escalator is in Half Speed running state, and LED is lit simultaneously.When having passenger to approach rpyroelectric infrared detecting module IC1 test surface, rpyroelectric infrared detecting module IC1 test surface detects after the infrared signal of passenger's radiation, the 2nd pin mouth CP output pulse width of rpyroelectric infrared detecting module IC1 is the high level in 5 seconds, make NPN transistor VT1 conducting, be equivalent to 1 low level of the 2nd pin trigger end input to time base circuit IC2, the monostable circuit upset that time base circuit IC2 forms enters temporary stable state, at the temporary stable state of time base circuit IC2 (estimation equation: T=1.1R2C2) in the time, the 3rd pin output high level of time base circuit IC2, the open contact J-1 of DC relay J will keep on-state, make escalator keep normal speed operation, as long as passenger is movable a little in rpyroelectric infrared detecting module IC1 test surface monitor area, the 2nd pin mouth CP of rpyroelectric infrared detecting module IC1 will constantly have output signal, make time base circuit IC2 remain temporary stable state, temporarily approximately 2～3 minutes stable state time, the 3rd pin of time base circuit IC2 keeps exporting high level always so.When passenger leaves after rpyroelectric infrared detecting module IC1 test surface monitor area, the 2nd pin mouth CP of infrared detection module IC1 is without high level output, the state of NPN transistor VT1 becomes cut-off from conducting, after the time base circuit IC2 temporary stable state time reaches, monostable circuit automatically restores to stabilized conditions, the open contact J-1 of DC relay J disconnects immediately, makes escalator start immediately Half Speed operating unit.

In order to guarantee the high reliability of the automatic Half Speed operation controller of the unmanned boarding of escalator work, can respectively install 1 in the appropriate location, gangway, two ends of escalator, and by the open contact J-1 of DC relay J in 2 controllers use in parallel.

Technical scheme: the automatic Half Speed operation controller of the unmanned boarding of escalator, it comprises 6V direct supply, infrared signal detection circuit, level phase inverter, monostable time delay circuit, DC relay driving circuit and condition indication circuit, it is characterized in that:

Infrared signal detection circuit: the model that rpyroelectric infrared detecting module IC1 adopts is BH9402, the anodal VCC of the 1st pin connection circuit of rpyroelectric infrared detecting module IC1, the 4th pin connection circuit ground GND of rpyroelectric infrared detecting module IC1;

Level phase inverter: the 2nd pin of rpyroelectric infrared detecting module IC1 connects the base stage of NPN transistor VT1, one end of the collecting electrode connecting resistance R1 of NPN transistor VT1 and the 2nd pin of time base circuit IC2, the anodal VCC of other end connection circuit of resistance R 1, the emitter connection circuit ground GND of NPN transistor VT1;

Monostable time delay circuit: it is comprised of time base circuit IC2, resistance R 2, chemical capacitor C1, the model that time base circuit IC2 adopts is NE555, the 6th pin of time base circuit IC2 and the 7th one end of pin connecting resistance R2 and the positive pole of chemical capacitor C1, the anodal VCC of other end connection circuit of resistance R 2, the 1st pin connection circuit ground GND of the negative pole of chemical capacitor C1 and time base circuit IC2, the anodal VCC of the 4th pin of time base circuit IC2 and the 8th pin connection circuit;

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 and the switching diode D1 negative pole of DC relay J coil, the anodal connection circuit of the other end of DC relay J coil and switching diode D1 ground GND, the open contact J-1 catcher of DC relay J is held up elevator motor running velocity control circuit;

Condition indication circuit: it is comprised of LED and resistance R 3, the 3rd pin of time base circuit IC2 connects the negative pole of LED, and LED is anodal by the anodal VCC of resistance R 3 connection circuits;

The anodal VCC of anodal connection circuit of 6V direct supply, the negative pole of 6V direct supply is connected with circuit ground GND.

Accompanying drawing explanation

Accompanying drawing is an embodiment circuit working schematic diagram of the automatic Half Speed operation controller of the unmanned boarding of escalator; The open contact J-1 catcher of DC relay J is held up elevator motor running velocity control circuit.

The specific embodiment

According to the unmanned boarding of escalator shown in the drawings automatic Half Speed operation controller circuit working schematic 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

It is the integrated rpyroelectric infrared detecting module of BH9402 that IC1 selects model, P2288 type pyroelectric infrared sensor PIR and SN9210 infrared signal is housed in box and processes special IC, at test surface, a semisphere milky Fresnel lens is installed.4 pins of this module and function are: the 1st pin is the orange line of positive source VCC; The 2nd pin is signal output part CP green line; The 3rd pin is the blue line of Enable Pin SL, for expanded function; The 4th pin is GND white wire;

IC2 is time base circuit, and the model of selecting is NE555 or selects 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 anodal VCC of the 8th pin connection circuit;

VT1 selects power NPN transistor in 2SC9013 or 3DG12,3DK etc., magnification factor β >=110;

C1 selects CD11-16V type chemical capacitor, and its capacity is 100 μ F/16V;

R1～R3 resistance can be selected RTX-1/4W carbon resister, and the resistance of resistance R 1 is 10K Ω, and the resistance of resistance R 2 is 680K Ω, and the resistance of resistance R 3 is 510 Ω;

Status indicator lamp is selected common LED red light emitting diodes;

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

J is DC relay, selects JRX-13F type 6V DC relay, and relay has 5 pin, and wherein the coil of 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 delay time length of monostable time delay circuit, resistance that can regulating resistance R2 or regulate the capacity of chemical capacitor C1, stable state time delay recommendation is 2～3 minutes temporarily; Requirement is by the open contact J-1 of 2 controller DC relay J use in parallel;

For effectively receiving the infrared signal of passenger's radiation, require by the test surface of rpyroelectric infrared detecting module IC1 aim at passenger must through gangway, escalator two ends, the setting height(from bottom) of rpyroelectric infrared detecting module IC1 is apart from the about 2.2～3m in ground;

Boarding safety for passenger, require to guarantee first passenger step into before first pedal of escalator 1.5～2m apart from time, the test surface of rpyroelectric infrared detecting module IC1 can receive the infrared signal of passenger's radiation in advance, escalator motor pre-cooling is moved with normal speed, rather than passenger move after setting foot on escalator pedal again with normal speed.

Claims

1. the automatic Half Speed operation controller of the unmanned boarding of escalator, it comprises 6V direct supply, infrared signal detection circuit, level phase inverter, monostable time delay circuit, DC relay driving circuit and condition indication circuit, it is characterized in that:

In described infrared signal detection circuit, the model that rpyroelectric infrared detecting module IC1 adopts is BH9402, the anodal VCC of the 1st pin connection circuit of rpyroelectric infrared detecting module IC1, the 4th pin connection circuit ground GND of rpyroelectric infrared detecting module IC1;

In described level phase inverter, the 2nd pin of rpyroelectric infrared detecting module IC1 connects the base stage of NPN transistor VT1, one end of the collecting electrode connecting resistance R1 of NPN transistor VT1 and the 2nd pin of time base circuit IC2, the anodal VCC of other end connection circuit of resistance R 1, the emitter connection circuit ground GND of NPN transistor VT1;

Described monostable time delay circuit is comprised of time base circuit IC2, resistance R 2, chemical capacitor C1, the model that time base circuit IC2 adopts is NE555, the 6th pin of time base circuit IC2 and the 7th one end of pin connecting resistance R2 and the positive pole of chemical capacitor C1, the anodal VCC of other end connection circuit of resistance R 2, the 1st pin connection circuit ground GND of the negative pole of chemical capacitor C1 and time base circuit IC2, the anodal VCC of the 4th pin of time base circuit IC2 and the 8th pin connection circuit;

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 and the switching diode D1 negative pole of DC relay J coil, the anodal connection circuit of the other end of DC relay J coil and switching diode D1 ground GND, the open contact J-1 catcher of DC relay J is held up elevator motor running velocity control circuit;

Described condition indication circuit is comprised of LED and resistance R 3, and the 3rd pin of time base circuit IC2 connects the negative pole of LED, and the positive pole of LED is by the anodal VCC of resistance R 3 connection circuits;

The anodal VCC of anodal connection circuit of described 6V direct supply, the negative pole of 6V direct supply is connected with circuit ground GND.