CN201777266U

CN201777266U - Energy-saving railway crossing signal

Info

Publication number: CN201777266U
Application number: CN2010202249497U
Authority: CN
Inventors: 苏浩; 匡本; 蔡书捷; 刘春�
Original assignee: PRACTICE FACTORY OF TIANJIN RAILWAY ENGINEEING SCHOOL
Current assignee: PRACTICE FACTORY OF TIANJIN RAILWAY ENGINEEING SCHOOL
Priority date: 2010-06-13
Filing date: 2010-06-13
Publication date: 2011-03-30
Anticipated expiration: 2020-06-13

Abstract

The utility model discloses an energy-saving railway crossing signal, which comprises a white light and two red lights. Each light is composed of multipoint light sources of high-brightness light emitting diodes in the same color, each point light source is controlled by a lighting circuit, and the lighting circuit consists of a clock signal generator, a flasher, a pulse distributor and a light emitting diode (LED) driving array, wherein the clock signal generator is connected with the pulse distributor, the pulse distributor is respectively connected with a white light emitting diode (LED) driving array set and two red light emitting diode (LED) driving array sets, and the flasher is respectively connected with two red light emitting diode (LED) driving array sets. The displaying light emitting tubes of the crossing signal are not lit at the same time, but lit respectively, sequentially and cyclically in a scanning manner, and thereby the energy saving effect of the crossing signal is evident.

Description

Energy-saving level crossing signal

Technical field

The utility model relates to the traffic signaling equipment of level crossing, in particular, relates to be mainly used in the traffic signaling equipment at railway and road plane gate crossing place.

Background technology

Railway is called the level crossing with the road junction that road plane intersects, and is called for short the road junction.For guaranteeing the various vehicles and the pedestrains safety at passing road junction, by relevant regulations: grade crossing signal and obstruction signal (as shown in Figure 1) should be installed in the road junction, and wherein X1, X2 are grade crossing signal, and its light setting as shown in Figure 2, H1 and H2 are red light, and B1 is white lamp.At ordinary times, grade crossing signal shows bluish white steady light to road direction, so that vehicle on the road and pedestrian note Reduced Speed Now.During near the road junction, this signal shows that to road direction two red lights replace flashing signal as railroad train, and sends the sound equipment notice, so that the vehicle parking on the road of passing road junction and pedestrains safety is dodged; X3, X4 are obstruction signal, and an obstruction signal all should be established in every uplink and downlink aspect through the road junction railway line.Obstruction signal is turned off the light at ordinary times, when the road junction blocks up, should show (red light) signal that stops to railway uplink and downlink direction.Existing grade crossing signal and obstruction signal generally all use the 12V25W filament bulb to do the light source shows signal, with different shown in the accompanying drawing 1 be, all more than one of the railway line of great majority by the road junction, therefore, its obstruction signal is more than two.But because of obstruction signal is turned off the light at ordinary times, on average light calculating simultaneously, then every place road junction power consumption every day 1.8 degree by three signal lamps as road junction, a place.So throughout the year.

Up to the present, the China railways road junction still has appreciiable quantity, the intensive stateowned enterprises of railway special line such as particularly large-scale factory, ore deposit, harbour, and the quantity of level crossing is just more.As the PORT OF TIANJIN, just there are 100 many places at the road junction of only having installed grade crossing signal equipment, and only grade crossing signal is lit a lamp one, nearly 200 degree of PORT OF TIANJIN total power consumption every day.Its consumption of current has some idea of.

In addition tool is measured, and its cold silk resistance of 12V25W signal lamp is 0.5 Ω, in filament spot moment, rush current is more than 10A, be easy to cause filament fracture of wire when energized, and the red alarm signal at road junction be the flash of light, so that the life-span of bulb extremely short.

The utility model content

Technical problem to be solved in the utility model is, overcomes the deficiencies in the prior art, and a kind of energy-saving level crossing signal is provided.

The energy-saving level crossing of the utility model signal is made up of a white lamp and two red lights, and described each lamp is made up of the multiple spot light source with the high brightness LED of color, and each point source of light is controlled by lamp circuit,

Lamp circuit drives array by clock-signal generator, Der Blink und Abblendschalter, pulse distributor and LED and forms, described clock-signal generator connects pulse distributor, described pulse distributor connects one group of white light emitting diode LED respectively and drives array and two groups of red light-emitting diode LED driving arrays, and described Der Blink und Abblendschalter connects two groups of red light-emitting diode LED respectively and drives arrays.

New type light source high brightness luminescent transistor diode (LED) has been widely applied to every field, the power of every luminotron is less than 0.03W, and the life-span is long, adopts many high brightness LEDs to make a kind of light source that shows light, and grade crossing signal light layout design as shown in Figure 2.

The utility model conservation of power energy: the one, light when many luminotrons of every kind of demonstration of grade crossing signal are different, but by scan mode respectively successively circulation light; The 2nd, utilize the people in physiological persistence of vision phenomenon, every luminotron is lighted to next circulation in the first circulation energising made us feeling that it is luminous constantly when switching on again, many luminotrons that form every kind of demonstration are not switch on and luminous at the same time effect simultaneously.Owing to have only several luminotrons to light in energising simultaneously, as calculating with quadrat method by above-mentioned incandescent light source, the utility model power consumption every day is 0.06 degree only, it still is example with the PORT OF TIANJIN, 100 place's grade crossing signals are lit a lamp, and power consumption every day is 6 degree only, and its energy-saving effect is apparent.

Description of drawings

Fig. 1 is that the road junction is provided with grade crossing signal and obstruction signal scheme drawing;

Fig. 2 is a grade crossing signal light arrangement plan;

Fig. 3 is the fundamental diagram of the utility model lamp circuit;

Fig. 4 is the utility model intersection alarm relay fundamental diagram.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further.

The utility model principle of work as shown in Figure 3.Be that example illustrates its principle of work now with grade crossing signal X1, X2 in the accompanying drawing 1.

Grade crossing signal is located at railway and road plane infall, be used to indicate pedestrian on the road and vehicle by or the visual signal at no thoroughfare road junction.Generally form by a white lamp, two red lights.Its light is arranged as shown in Figure 2.At ordinary times, grade crossing signal shows a stable moon white light light, notes travelling slowing down with pedestrian on the indication road and vehicle and passes through the road junction; As train during near the road junction, two red lights of grade crossing signal are with the flash of light that alternately flickers of the frequency of 1HZ, to forbid that pedestrian on the road and vehicle are by the road junction, till train all sails out of the road junction.

As shown in Figure 2, the energy-saving grade crossing signal lamp circuit of forming a kind of demonstration by the multiple spot light source of a plurality of high brightness LEDs with color, drive array IC4 by clock-signal generator IC1, Der Blink und Abblendschalter IC3, pulse distributor IC2 and LED and form, its principle as shown in Figure 3.

Clock signal generator circuit: every grade crossing signal is established a clock-signal generator (as the IC1 of accompanying drawing 3), makes its clocking, with the normal circulation work of driving signal generator circuit.Clock-signal generator is a multivibrator circuit of being made up of time base circuit NE555 and Resistor-Capacitor Unit, and its oscillation frequency is between 60-100HZ, and the square wave of vibration is by the 3 pin output of NE555.

The pulse distributor circuit: every grade crossing signal is established a pulse distributor (as the IC2 of accompanying drawing 3), under clock signal promotes, make pulse distributor IC2 periodical duty, its Q0---Q7 (Q8, Q9 need not) is circulation output high level successively, and the input end IN1-IN8 of respectively corresponding LED driving array, drive array periodical duty successively to promote LED respectively.

IC3 selects CD4017 decade counter/distributing box integrated circuit for use, and when its EN end was imported from the CP end for low level, clock signal, then Q0---Q7 exported high level successively, and the time of every end output high level is an oscillation period of multi-vibrator.

Darlington drives array circuit: each light of every grade crossing signal is established a Darlington and is driven array, in order to light all light-emitting diodes (LED) of this light in good time, drives array and selects the VLN2803 integrated circuit for use.Shown in the IC4 of accompanying drawing 3: wherein the darlington array of white lamp is B1IC4, and the darlington array of red light 1 is H1IC4, and the darlington array of red light 2 is H2IC4.Establish 8 cover Darlingtons combinations in the ULN2803,8 input end IN1-IN8 are arranged respectively, corresponding 8 mouth OUT1-OUT8.They have common low level (GND) end (9 pin)

The IN end of ULN2803 is that the high level input is effective, should be noted that each input, the mouth of ULN2803 all constitutes the loop by low level end (9 pin).

In order to reach energy-saving effect, also because of ULN2803 has 8 input ends, we are divided into 8 groups to all luminous utmost point pipes of same light, and because of VCC2 adopts direct current 24V power supply, 8 light-emitting diodes in every group are concatenated into a string, are connected on the mouth of ULN2803.Every string light-emitting diode should not surpass 8, when every group of light-emitting diode surpasses 8, can conspire to create three connection in series-parallel of two strings.Like this when certain input end of ULN2803 has the high level input, the light-emitting diode that is connected on corresponding mouth just together with the time light.

Flasher circuit: road junction, every place or every grade crossing signal are established a Der Blink und Abblendschalter (as the IC3 in the accompanying drawing 3), so that two aerotron alternate conduction of T2 wherein, T3, thereby be that two red lights alternately send low level to make the alternately flash of light of two red lights.

Der Blink und Abblendschalter also is a multivibrator circuit of being made up of time base circuit NE555 and Resistor-Capacitor Unit, and its oscillation frequency is 1HZ, and dutycycle is 50%.The square wave of its vibration is by the 3 pin output of NE555.

During the tripod output low level of the NE555 of IC3, T1, T2 conducting are lighted the H1 red light, and when the 3 pin output high level of the NE555 of IC3, the T3 conducting is lighted the H2 red light.

The working process of energy-saving grade crossing signal:

For grade crossing signal is lit a lamp on request in good time, every place establishes at the road junction alarm relay (BJ), and BJ can be subjected to train near automatic guidance and manually control, and its principle as shown in Figure 4.

Coil had electricity when BJ was flat, and its normal opened contact 1 is connected, and the B1 lamp is lighted; After the road junction collected the information of train near the road junction automatically, the autocontrol switch contact disconnected; Or the road junction guard thinks in case of necessity, disconnects its manual switch contact, and BJ its normal opened contact 1 that cuts off the power supply is disconnected, and normally closed contact 2 is connected.By the alternately flash of light of two red lights of changing the time of normal brilliant white lamp.

(1) grade crossing signal is put white lamp at ordinary times

At ordinary times, intersection alarm relay BJ coil has.As accompanying drawing 4, wherein automatic switch K1, hand switch K2, its normal opened contact is connected it makes the GND end (9 pin) of BIC4 in the accompanying drawing 3 by low level, IC1, IC2, B1IC4 are worked simultaneously be the Q0-Q8 of the clock signal driving pulse distributing box IC2 of the 60-100HZ that IC1 produces to export high level successively, and have only a Q end to keep high level, till this high level lasts till that next clock signal arrives at every turn.The high level of each Q end of IC2 is given the corresponding IN end of B1IC4, H1IC4 and H2IC4 simultaneously, but have only 9 pin of B1IC4 that low level is arranged at ordinary times, so have only the high level of IN end of B1IC4 effective, every group of light-emitting diode that can make the white lamp of B1 lighted by circulation successively.Because people's persistence of vision phenomenon makes the people feel the effect that all light-emitting diodes of the white lamp of B1 are lighted at the same time.

Signal point red light flash of light when (2) train being arranged near the road junction

During near the road junction, is that automatic guidance or manual control all can make alarm relay BJ coil circuit be cut off as train, and its normal opened contact 1 is disconnected, and has promptly disconnected the 9 pin low levels of B1IC4.The normally closed contact 2 of BJ is connected, made H1IC4, H2IC4 and Der Blink und Abblendschalter that low level be arranged.Light with white lamp that process is the same to make the alternately flash of light of two red lights, do not giving unnecessary details.

This circuit through appropriate reconstruction applicable to highway road junction traffic signaling equipment lighting control circuit.If can promote the utmost point and both be applied to the level crossing, be applied to the highway road junction traffic signaling equipment usefulness of lighting a lamp again, its economic and social benefit is difficult to the appraisal.

Claims

1. an energy-saving level crossing signal is made up of a white lamp and two red lights, it is characterized in that, described each lamp is made up of the multiple spot light source with the high brightness LED of color, and each point source of light is controlled by lamp circuit,

Lamp circuit drives array IC4 by clock-signal generator IC1, Der Blink und Abblendschalter IC3, pulse distributor IC2 and LED and forms, described clock-signal generator connects pulse distributor, described pulse distributor connects one group of white light emitting diode LED respectively and drives array and two groups of red light-emitting diode LED driving arrays, and described Der Blink und Abblendschalter connects two groups of red light-emitting diode LED respectively and drives arrays.

2. energy-saving level crossing according to claim 1 signal is characterized in that, described clock-signal generator is a multivibrator circuit of being made up of time base circuit NE555 and Resistor-Capacitor Unit.

3. energy-saving level crossing according to claim 1 signal is characterized in that described Der Blink und Abblendschalter is selected CD4017 decade counter/distributing box integrated circuit for use.

4. energy-saving level crossing according to claim 1 signal is characterized in that, it is that Darlington drives array that described LED drives array, and Darlington drives array and selects the VLN2803 integrated circuit for use.