CN102030020B

CN102030020B - Railway light-emitting diode (LED) signal lamp failure alarming system and method

Info

Publication number: CN102030020B
Application number: CN2011100007929A
Authority: CN
Inventors: 张荣博
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-05
Filing date: 2011-01-05
Publication date: 2012-05-09
Anticipated expiration: 2031-01-05
Also published as: CN102030020A

Abstract

The invention provides a railway light-emitting diode (LED) signal lamp failure alarming system and a railway LED signal lamp failure alarming method. The system comprises a direct current power supply, an alarming circuit, an 850 time relay, an alarm receiving unit and a lighted lamp unit alarm sending circuit, wherein the sending circuit comprises a microprocessing controller, a photocoupling tube T1 and a photocoupling tube T2; and the microprocessing controller sends an address code through the photocoupling tube T1 and detects the state of the alarming circuit through the photocoupling tube T2. The method comprises the following steps of: when the address code sent by the microprocessing controller is a high level, if the state of the alarming circuit is the high level, continuously sending the address code, otherwise, exiting from sending; when the sent address code is a low level, if the state of the alarming circuit is the low level, continuously sending the address code; and after the address code is completely sent, sending the high level to the photocoupling tube T1. The system has the advantages of high reliability and no alarming conflict; and the method has the advantages of scientific coding and high practicability.

Description

Railway LED signal lamp failure warning and fault alarm method thereof

Technical field

The present invention relates to a kind of signal lamp failure warning, specifically, relate to a kind of railway LED signal lamp failure warning and fault alarm method thereof.

Background technology

At present, the failure warning system that railway signal lamp adopts usually is as shown in Figure 1, the shared a pair of alarm circuit of the warning of promptly a plurality of lighting unit warning transtation mission circuits; Arbitrary cell failure of lighting a lamp all want short circuit this to alarm circuit; Make 850 time relays time-delay adhesive, start 6502 signal monitoring system relevant portions and report to the police, simultaneously; Lighting unit also will send the address code information of oneself; Receive the micro computer monitoring terminal that lights a lamp the element address coded message and give central machine room by the warning receiving element,, and then be convenient to on-call maintenance corresponding failure lighting unit with the specific address of demonstration fault lighting unit; But; After a lighting unit fault; Other lighting unit fault is arranged again, conflict each other then will take place between the fault lighting unit, cause the address code information of other fault lighting unit to send; This is just for the lighting unit break down maintenance has brought very big inconvenience, even the initiation safety misadventure; This shows that there is critical defect in the coding form of existing failure warning system.

In order to solve the problem of above-mentioned existence, people are seeking a kind of desirable technical solution always.

Summary of the invention

The objective of the invention is to overcome the deficiency of prior art; Thereby a kind of design science, simple in structure, compatible strong, alarm free conflict, railway LED signal lamp failure warning that reliability is high are provided, provide also that a kind of method is simple, coding science, practical railway LED signal lamp failure alarm method.

The objective of the invention is to realize: a kind of railway LED signal lamp failure warning through following technical scheme; It comprises the alarm unit that is made up of direct supply, alarm circuit, 850 time relays and warning receiving element and is connected the lighting unit warning transtation mission circuit on the alarm circuit; Said lighting unit warning transtation mission circuit comprises microprocessor controller, full-wave bridge rectifier circuit, photocoupler T1, photocoupler T2, resistance R 1, resistance R 2 and resistance R 3; Wherein, The positive output end of said full-wave bridge rectifier circuit connects the collecting electrode of said resistance R 3 one ends and said photocoupler T1 respectively; The negative output terminal of said full-wave bridge rectifier circuit connects the negative input end of said photocoupler T2 and the emitter of said photocoupler T1 respectively; Two input ends of said full-wave bridge rectifier circuit connect alarm circuit, and said resistance R 3 other ends connect the positive input terminal of said photocoupler T2, and the collecting electrode of said photocoupler T2 connects an end of said resistance R 2; Said resistance R 2 other ends are used to connect direct supply; The grounded emitter of said photocoupler T2, the collecting electrode of said photocoupler T2 connect the alarm circuit state signal collecting end of said microprocessor controller, and the positive input terminal of said photocoupler T1 is used to connect direct supply; The negative input end of said photocoupler T1 connects said resistance R 1 one ends, the fault that said resistance R 1 other end connects said microprocessor controller element address code signal input end of lighting a lamp.

A kind of railway LEI) signal lamp failure alarm method, this method is: said microprocessor controller sends the fault element address coding of lighting a lamp through photocoupler T1, and said microprocessor controller is through photocoupler T2 detection alarm line status; The fault of sending when microprocessor controller is lit a lamp the element address when being encoded to high level; If the alarm circuit state is a high level; Then microprocessor controller continue to send the fault element address coding of lighting a lamp, otherwise then microprocessor controller withdraws from and sends the fault element address coding of lighting a lamp; The fault of sending when microprocessor controller is lit a lamp the element address when being encoded to low level, if the alarm circuit state is a low level, then microprocessor controller continues to send the fault element address coding of lighting a lamp, otherwise then failure warning system breaks down; Treat that microprocessor controller has sent light a lamp element address coding of fault, microprocessor controller sends high level to photocoupler T1, so that abdicate alarm circuit.

The present invention has outstanding substantive distinguishing features and marked improvement with respect to prior art; Specifically; This failure warning system utilizes photocoupler to isolate alarm circuit and lighting unit dexterously, and it has design science, simple in structure, compatible strong, alarm free conflict, advantage that reliability is high; This fault alarm method does not influence the normal adhesive of 850 time relays, theoretically, reports to the police when this method can be used for any multichannel lighting unit, and it has, and method is simple, coding science, practical advantage.

Description of drawings

Fig. 1 is the structural representation of said failure warning system;

Fig. 2 is the electrical block diagram of said lighting unit warning transtation mission circuit;

Fig. 3 is the alarm code figure of said railway LED signal lamp failure alarm method.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed description:

As depicted in figs. 1 and 2; A kind of railway LED signal lamp failure warning; It comprises the alarm unit that is made up of direct supply, alarm circuit, 850 time relays and warning receiving element and is connected the lighting unit warning transtation mission circuit on the alarm circuit; Said lighting unit warning transtation mission circuit comprises microprocessor controller, full-wave bridge rectifier circuit, photocoupler T1, photocoupler T2, resistance R 1, resistance R 2 and resistance R 3; Wherein, The positive output end of said full-wave bridge rectifier circuit connects the collecting electrode of said resistance R 3 one ends and said photocoupler T1 respectively, and the negative output terminal of said full-wave bridge rectifier circuit connects the negative input end of said photocoupler T2 and the emitter of said photocoupler T1 respectively, and two input ends of said full-wave bridge rectifier circuit connect alarm circuit; Said resistance R 3 other ends connect the positive input terminal of said photocoupler T2; The collecting electrode of said photocoupler T2 connects an end of said resistance R 2, and said resistance R 2 other ends are used to connect direct supply, the grounded emitter of said photocoupler T2; The collecting electrode of said photocoupler T2 connects the alarm circuit state signal collecting end P1.1 of said microprocessor controller; The positive input terminal of said photocoupler T1 is used to connect direct supply, and the negative input end of said photocoupler T1 connects said resistance R 1 one ends, the fault that said resistance R 1 other end connects said microprocessor controller element address code signal input end P1.0 that lights a lamp; Said full-wave bridge rectifier circuit comprises diode D1, diode D2, diode D3 and diode D4.

As shown in Figure 3, a kind of railway LED signal lamp failure alarm method, this method is: said microprocessor controller sends the fault element address coding of lighting a lamp through photocoupler T1, and said microprocessor controller is through photocoupler T2 detection alarm line status; The fault of sending when microprocessor controller is lit a lamp the element address when being encoded to high level; If the alarm circuit state is a high level; Then microprocessor controller continue to send the fault element address coding of lighting a lamp, otherwise then microprocessor controller withdraws from and sends the fault element address coding of lighting a lamp; The fault of sending when microprocessor controller is lit a lamp the element address when being encoded to low level, if the alarm circuit state is a low level, then microprocessor controller continues to send the fault element address coding of lighting a lamp, otherwise then failure warning system breaks down; Treat that microprocessor controller has sent light a lamp element address coding of fault, microprocessor controller sends high level to photocoupler T1, so that abdicate alarm circuit.

This failure warning system adopts the method for conflict escape mechanism to solve the problem of a plurality of lighting unit fault alarm conflicts, and concrete method is: the lighting unit of fault sends geocoding, and the state of detection alarm circuit is high level or low level simultaneously; If what send is low level, the state that detects alarm circuit simultaneously is a low level, then will continue to send next address coding numeral; If what send is high level, but the state that detects alarm circuit is a high level, also continues to send next address coding numeral; But if send be high level and detected be low level, explain that then this lighting unit and other lighting unit send alarm code conflict has taken place, oneself withdraws from; If lighting unit successfully sends the geocoding of oneself; Then abdicate alarm circuit; Let other lighting unit that has not sent the warning geocoding resend oneself address code, till the geocoding of All Alerts lighting unit sends fully.

Principle of work: when needs send the geocoding of fault lighting unit,, control the high-low level of alarm circuit with this through the light a lamp conducting of element address code signal input end P1.0 control photocoupler T1 of the fault of said microprocessor controller; The fault of said microprocessor controller is lit a lamp element address code signal input end P1.0 when being high level, not conducting of photocoupler T1, and alarm circuit is high level state; The fault of said microprocessor controller is lit a lamp element address code signal input end P1.0 when being low level, photocoupler T1 conducting, and alarm circuit is low level state by short circuit; Through photocoupler T2; The state of the alarm circuit state signal collecting end P1.1 detection alarm circuit of said microprocessor controller; When alarm circuit is low level or photocoupler T1 conducting; The capital is ended photocoupler T2, and the alarm circuit state signal collecting end P1.1 of said microprocessor controller is high level; When alarm circuit is a high level; And when photocoupler T1 ends; Photocoupler T2 manages conducting; The alarm circuit state signal collecting end P1.1 of said microprocessor controller is low level, because the high-low level of the alarm circuit state signal collecting end P1.1 of said microprocessor controller has reflected the state of alarm circuit.

Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although with reference to preferred embodiment the present invention has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can specific embodiments of the invention make amendment or the part technical characterictic is equal to replacement; And not breaking away from the spirit of technical scheme of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.

Claims

1. railway LED signal lamp failure warning; Comprise the alarm unit that constitutes by direct supply, alarm circuit, 850 time relays and warning receiving element and be connected the lighting unit warning transtation mission circuit on the alarm circuit; It is characterized in that: said lighting unit warning transtation mission circuit comprises microprocessor controller, full-wave bridge rectifier circuit, photocoupler T1, photocoupler T2, resistance R 1, resistance R 2 and resistance R 3; Wherein, The positive output end of said full-wave bridge rectifier circuit connects the collecting electrode of said resistance R 3 one ends and said photocoupler T1 respectively; The negative output terminal of said full-wave bridge rectifier circuit connects the negative input end of said photocoupler T2 and the emitter of said photocoupler T1 respectively; Two input ends of said full-wave bridge rectifier circuit connect alarm circuit, and said resistance R 3 other ends connect the positive input terminal of said photocoupler T2, and the collecting electrode of said photocoupler T2 connects an end of said resistance R 2; Said resistance R 2 other ends are used to connect direct supply; The grounded emitter of said photocoupler T2, the collecting electrode of said photocoupler T2 connect the alarm circuit state signal collecting end of said microprocessor controller, and the positive input terminal of said photocoupler T1 is used to connect direct supply; The negative input end of said photocoupler T1 connects said resistance R 1 one ends, the fault that said resistance R 1 other end connects said microprocessor controller element address code signal input end of lighting a lamp.

2. the fault alarm method of the described railway LED of claim 1 signal lamp failure warning; It is characterized in that: said microprocessor controller sends the fault element address coding of lighting a lamp through photocoupler T1, and said microprocessor controller is through photocoupler T2 detection alarm line status; The fault of sending when microprocessor controller is lit a lamp the element address when being encoded to high level; If the alarm circuit state is a high level; Then microprocessor controller continue to send the fault element address coding of lighting a lamp, otherwise then microprocessor controller withdraws from and sends the fault element address coding of lighting a lamp; The fault of sending when microprocessor controller is lit a lamp the element address when being encoded to low level, if the alarm circuit state is a low level, then microprocessor controller continues to send the fault element address coding of lighting a lamp, otherwise then failure warning system breaks down; Treat that microprocessor controller has sent light a lamp element address coding of fault, microprocessor controller sends high level to photocoupler T1, so that abdicate alarm circuit.