CN100455467C - Locomotive closing signal triggering alarming device of railway switch - Google Patents
Locomotive closing signal triggering alarming device of railway switch Download PDFInfo
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- CN100455467C CN100455467C CNB2005100255764A CN200510025576A CN100455467C CN 100455467 C CN100455467 C CN 100455467C CN B2005100255764 A CNB2005100255764 A CN B2005100255764A CN 200510025576 A CN200510025576 A CN 200510025576A CN 100455467 C CN100455467 C CN 100455467C
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Abstract
The present invention relates to a railway crossing locomotive oncoming signal triggering alarm device which comprises a locomotive oncoming signal sampling device connected by a circuit, a locomotive oncoming signal triggering circuit and a locomotive oncoming signal alarm device, wherein the locomotive oncoming signal sampling device is a variable resistor formed by rails and locomotive wheels in a simulation equivalent mode; the locomotive oncoming signal triggering circuit comprises an electric bridge circuit, an electric potential comparator, a signal turnover power amplifier and a triggering signal output circuit which are connected by circuits; the locomotive oncoming signal alarm device comprises a voice alarm, a subtitle display and a device controller which are connected in parallel. The railway crossing locomotive oncoming signal triggering alarm device provided by the present invention has sensitive and reliable triggering performance, so that a locomotive can be detected to trigger at the time of running in two ways on one track, and the present invention can send out alarm signals in time so as to greatly reduce the accident rate; the present invention has the advantages of simple structure, little investment, easy implementation, simple maintenance and strong adaptability to various environments and climates.
Description
Technical field
The present invention relates to a kind of locomotive closing signal triggering alarming device of railway switch.
Background technology
The level crossing is the important step of railway traffic safety always, and the various accident occurrence causes of level crossing are a lot, comprise factor of artificial awareness of safety deficiency, surrounding environment factor and grade crossing signal warning device or the like.Owing to settle a cover level crossing signalling alarm equipment to need the input of substantial contribution, also need the supporting and certain maintenance cost of electric power simultaneously, so in many areas, drop in default of fund input and some infrastructure devices, the level crossing signalling alarm equipment can't be installed, make traffic accident take place again and again.
Make a general survey of existing level crossing signalling alarm equipment, especially locomotive closes on the alerting signal Sampling techniques at road junction, more use be that tradition is pressed rail stroke patterns, displacement sensing technology etc., these technology all must have bigger fund input Facilities Construction, have obviously restricted popularizing and developing of level crossing safety alarm device.
Existing Chinese patent " 00258402.6 miniature voice combined type level crossing alarm sound Chinese percussion instrument ", it must depend on the road junction Infrastructure of existing locomotive closing signal sampling.And at some unattended railway road junctions or there is not the level crossing of locomotive right of way signal sampling facility just can't use.Do not have the road junction of grade crossing signal facility at these, can only lean on some caution notice boards to play warning function, but The trees make a pleasant shade for place, most level crossing, tends to those caution notice boards are sheltered from, the effect of so so-called warning function has also just been well imagined.The hidden danger of safe railway operation exists all the time, tends to very dangerously, and the phenomenon of car crash takes place.
Summary of the invention
The object of the present invention is to provide a kind of locomotive closing signal triggering alarming device of railway switch, it is reliable that it triggers performance sensitive, and locomotive way traffic on same track all can detectedly be triggered, and in time sends alerting signal, significantly reduces accident rate; This apparatus structure is simple, suits measures to local conditions, and less investment is easily implemented, and safeguards that simply various environment, weather are had stronger comformability.
For achieving the above object, the invention provides a kind of locomotive closing signal triggering alarming device of railway switch, it comprises circuit bonded assembly locomotive closing signal sampling setup, locomotive closing signal flip flop equipment and locomotive closing signal warning device;
Described locomotive closing signal sampling setup comprises the variable rheostat that rail becomes with the locomotive wheel analog equivalent; Specifically, be that wheel and the contacting of rail with locomotive is basic point, two rails are seen as naked resistor wire, and move in opposite directions be pressed in locomotive wheel on the rail, be connected by locomotive front axle bridge, formed the moving contact line on the naked resistor wire, thereby equivalence becomes a rail variable rheostat;
Described locomotive closing signal flip flop equipment comprises circuit bonded assembly bridge circuit, potential comparator, signal upset power amplifier and energizing signal output circuit;
Described bridge circuit comprises the some precision resistances of circuit bonded assembly and some variable rheostats; Described variable rheostat is regulated the balance of electric bridge and the triggering distance that locomotive closes on the road junction;
Described potential comparator is provided with activation threshold value, and when the rail variable resistance diminishes when making the bridge circuit lack of equilibrium gradually, potential comparator triggers upset, and its mouth is low level;
Described signal upset power amplifier comprises aerotron and bias resistor, and when potential comparator did not trigger, bias resistor played by effect, and aerotron is in by state; When potential comparator triggers upset, aerotron conducting;
Described energizing signal output circuit comprises power supply and output resistance; Described power supply can be the net electricity, can be storage battery, also can be solar storage battery etc.;
When triggering, potential comparator overturns, during the aerotron conducting, and this energizing signal output circuit conducting, the warning energizing signal that its mouth output locomotive closes on;
The input end of described locomotive closing signal warning device connects the mouth of energizing signal output circuit, and this locomotive closing signal warning device comprises the phonetic alarm that is connected in parallel, captions telltale and stand-by facility controller;
Described phonetic alarm comprises circuit bonded assembly sounding alarm actuator and loudspeaker, in case the sounding alarm actuator receives the warning energizing signal of energizing signal output circuit output, these sounding alarm driver drives loudspeaker send alerting signal;
Described captions telltale comprises circuit bonded assembly light display driver and telltale, in case the light display driver receives the warning energizing signal of energizing signal output circuit output, promptly driving display demonstrates alerting signal;
Described stand-by facility controller is when receiving the warning energizing signal of energizing signal output circuit output, and all kinds of roads of may command jaws equipment starts automatically as the control electric railing, stops the car and the pedestrian at road junction.
Locomotive closing signal triggering alarming device of railway switch provided by the invention, it is reliable that it triggers performance sensitive, and locomotive way traffic on same track all can detectedly be triggered, and in time sends alerting signal, significantly reduces accident rate; This apparatus structure is simple, suits measures to local conditions, and less investment is easily implemented, and safeguards that simply various environment, weather are had stronger comformability.
Description of drawings
Fig. 1 is a circuit structure block diagram of the present invention;
Fig. 2 is the structural representation of locomotive closing signal sampling setup of the present invention;
Fig. 3 is a circuit diagram of the present invention.
The specific embodiment
Following according to Fig. 1～Fig. 3, a kind of preferred forms of the present invention is described.
As shown in Figure 1, be circuit structure block diagram of the present invention, it comprises circuit bonded assembly locomotive closing signal sampling setup, locomotive closing signal flip flop equipment and locomotive closing signal warning device;
Described locomotive closing signal sampling setup comprises the rail variable rheostat 101 that rail becomes with the locomotive wheel analog equivalent; As shown in Figure 2, this rail variable rheostat 101 is to be basic point with contacting of the wheel L1 of locomotive and rail G1, G2, two rails are seen as naked resistor wire, and move in opposite directions be pressed in locomotive wheel L1 on the rail, be connected by locomotive front axle bridge, formed the moving contact line on the naked resistor wire, thereby equivalence becomes a rail variable rheostat 101; And the resistance value Rab of this rail variable rheostat 101 changes along with moving of locomotive wheel L1, when locomotive wheel L1 moves to the level crossing, and just during the terminals of variable rheostat 101, the value minimum of Rab, on the contrary then maximum;
Described locomotive closing signal flip flop equipment comprises circuit bonded assembly bridge circuit 102, potential comparator 103, signal upset power amplifier 104 and energizing signal output circuit 105;
As shown in Figure 3, the J point on the rail at level crossing DK place, D point circuit respectively are connected on the leg of a bridge of bridge circuit, and described bridge circuit 102 comprises circuit bonded assembly precision resistance R1, R3 and second, the first variable resistance RW2, RW1; The resistance value of this precision resistance R1, R3 needs less than 1000 ohm, to adapt to the low resistance of rail resistance; Can be by regulating the balance that the described first variable resistance RW1 regulates electric bridge, the balance error of correction circuit; Regulate described the second adjustable resistance RW2 and regulate the triggering distance that locomotive closes on the road junction, promptly regulate the activation threshold value of potential comparator 103;
Described potential comparator 103 is IC potential comparator (LM393), these IC potential comparator positive-negative input end 5 pin and 6 pin are connected the balance end A point and the B point of bridge circuit 102 respectively, when locomotive L1 or L2 are far from the road junction, the value of rail resistance R ab is greater than the activation threshold value of IC potential comparator 103, IC potential comparator 103 is not triggered at this moment, when locomotive L1 or L2 gradually by far away and when near, the value of rail resistance R ab diminishes gradually, when its value little of making bridge circuit 102 lack of equilibrium, the threshold values of IC potential comparator 103 is triggered at this moment, 103 upsets of IC potential comparator, its mouth 7 pin present low level; When locomotive L1 or L2 gradually away from the level crossing, the value of rail resistance R ab becomes greatly gradually, restores balance until bridge circuit 102, IC potential comparator 103 turn to the state of not being triggered once more;
Described signal upset power amplifier 104 comprises aerotron BG and bias resistor R2, mouth 7 pin of described IC potential comparator 103 connect the base stage of aerotron BG, when IC potential comparator 103 was not triggered, bias resistor R2 played by effect, made aerotron BG guarantee to be in by state; After 103 upsets of IC potential comparator were triggered, the base stage of aerotron BG obtained working current, aerotron BG conducting; When locomotive L1 or L2 gradually away from the level crossing, IC potential comparator 103 turn to the state of not being triggered once more, aerotron BG come out of action electric current and by;
Described energizing signal output circuit 105 comprises power supply and output resistance R4; Described power supply can be the net electricity, can be storage battery, also can be solar storage battery etc.; The mouth pin 7 of described potential comparator 103 connects the base stage of aerotron BG, the collector series connection output resistance R4 of aerotron BG, and the emitter terminal pin of output resistance R4 other end pin and aerotron BG is power connection negative pole and positive pole respectively.
When IC potential comparator 103 is not triggered, aerotron BG by, so these energizing signal output circuit 105 not conductings do not have output signal; After IC potential comparator 103 upset was triggered, aerotron BG conducting because the effect of resistance R 4, presented high potential at the collecting electrode of aerotron BG, and the warning energizing signal that closes on by mouth CF-OUT output locomotive; When locomotive L1 or L2 gradually away from the level crossing, IC potential comparator 103 turn to the state of not being triggered once more, aerotron BG by, the collecting electrode of aerotron BG presents active potential, the mouth CF-OUT of energizing signal output circuit 105 stops the output alarm energizing signal;
The input end CF-IN of described locomotive closing signal warning device connects the mouth CF-OUT of energizing signal output circuit 105, this locomotive closing signal warning device comprises the phonetic alarm 106 that is connected in parallel, captions telltale 107 and stand-by facility controller 108;
Described phonetic alarm 106 comprises circuit bonded assembly sounding alarm actuator 1061 and loudspeaker 1062, in case sounding alarm actuator 1061 receives the warning energizing signal of energizing signal output circuit 105 outputs, this sounding alarm actuator 1061 drives loudspeaker 1062 and sends alerting signal;
Described captions telltale 107 comprises circuit bonded assembly light display driver 1071 and telltale 1072, in case light display driver 1071 receives the warning energizing signal of energizing signal output circuit 105 outputs, promptly driving display 1072 shows the bright dipping cue;
Described stand-by facility controller 108 is when receiving the warning energizing signal of energizing signal output circuit 105 outputs, and all kinds of roads of may command jaws equipment starts automatically as the control electric railing, stops the car and the pedestrian at road junction.
Locomotive closing signal triggering alarming device of railway switch provided by the invention, it is reliable that it triggers performance sensitive, and locomotive way traffic on same track all can detectedly be triggered, and in time sends alerting signal, significantly reduces accident rate; This apparatus structure is simple, suits measures to local conditions, and less investment is easily implemented, and safeguards that simply various environment, weather are had stronger comformability.
Claims (9)
1. a locomotive closing signal triggering alarming device of railway switch comprises circuit bonded assembly locomotive closing signal sampling setup, locomotive closing signal flip flop equipment and locomotive closing signal warning device; It is characterized in that,
Described locomotive closing signal sampling setup comprises the rail variable rheostat (101) of rail and locomotive wheel analog equivalent composition, specifically, be to be basic point with contacting of described locomotive wheel and two rails, described two rails are seen as naked resistor wire, and move in opposite directions be pressed in two locomotive wheels on the rail, be connected by locomotive front axle bridge, formed the moving contact line on the naked resistor wire, thereby equivalence becomes described rail variable rheostat (101);
Described locomotive closing signal flip flop equipment comprises circuit bonded assembly bridge circuit (102), potential comparator (103), signal upset power amplifier (104) and energizing signal output circuit (105);
Described locomotive closing signal flip flop equipment output locomotive closes on the warning energizing signal to described locomotive closing signal warning device.
2. locomotive closing signal triggering alarming device of railway switch as claimed in claim 1 is characterized in that, described bridge circuit (102) comprises circuit bonded assembly precision resistance (R1, R3), second and first variable resistance (RW2, RW1).
3. locomotive closing signal triggering alarming device of railway switch as claimed in claim 2 is characterized in that, the resistance value of described precision resistance (R1, R3) is less than 1000 ohm; Described first variable resistance (RW1) is regulated the balance of electric bridge, the balance error of correction circuit; Described the second adjustable resistance (RW2) is regulated the triggering distance that locomotive closes on the road junction, promptly regulates the activation threshold value of described potential comparator (103).
4. locomotive closing signal triggering alarming device of railway switch as claimed in claim 1 is characterized in that, the positive-negative input end pin (5,6) of described potential comparator (103) connect respectively described bridge circuit (102) the balance end points (A, B); Described potential comparator (103) is provided with activation threshold value;
When locomotive constantly closes on the level crossing, the resistance value (Rab) of described rail variable rheostat (101) is just less than the setting value of described potential comparator (103), during described bridge circuit (102) overbalance, described potential comparator (103) triggers upset, the low flat signal of output;
When locomotive constantly away from the level crossing, the resistance value (Rab) of described rail variable rheostat (101) is just greater than the setting value of described potential comparator (103), during described bridge circuit (102) balance, described potential comparator (103) does not trigger, not output signal.
5. locomotive closing signal triggering alarming device of railway switch as claimed in claim 1 is characterized in that, described signal upset power amplifier (104) comprises aerotron (BG) and bias resistor (R2);
The mouth pin (7) of described potential comparator (103) connects the base stage of aerotron (BG);
When locomotive closes on the level crossing, described bridge circuit (102) overbalance, when described potential comparator (103) triggers upset, aerotron (BG) conducting;
When locomotive away from the way mouth, described bridge circuit (102) balance, described potential comparator (103) is not when triggering, bias resistor (R2) guarantee aerotron (BG) by.
6. locomotive closing signal triggering alarming device of railway switch as claimed in claim 1 is characterized in that, described energizing signal output circuit (105) comprises power supply and output resistance (R4);
Described power supply is net electricity or storage battery;
Described signal upset power amplifier (104) comprises aerotron (BG) and bias resistor (R2);
The mouth pin (7) of described potential comparator (103) connects the base stage of aerotron (BG), the collector series connection output resistance (R4) of aerotron (BG), the emitter terminal pin of output resistance (R4) other end pin and aerotron (BG) is power connection negative pole and positive pole respectively;
When locomotive closes on the level crossing, described bridge circuit (102) overbalance, described potential comparator (103) triggers upset, during aerotron (BG) conducting, mouth (CF-OUT) the output alarm energizing signal of described energizing signal output circuit (105);
When locomotive away from the level crossing, described bridge circuit (102) balance, described potential comparator (103) does not trigger, aerotron (BG) by the time, the mouth (CF-OUT) of described energizing signal output circuit (105) stops the output alarm energizing signal.
7. locomotive closing signal triggering alarming device of railway switch as claimed in claim 1 is characterized in that, the input end of described locomotive closing signal warning device (CF-IN) connects the mouth (CF-OUT) of described energizing signal output circuit (105); This locomotive closing signal warning device comprises the phonetic alarm (106) that is connected in parallel, captions telltale (107) and stand-by facility controller (108).
8. locomotive closing signal triggering alarming device of railway switch as claimed in claim 7, it is characterized in that, described phonetic alarm (106) comprises circuit bonded assembly sounding alarm actuator (1061) and loudspeaker (1062), the warning energizing signal of described energizing signal output circuit (105) output triggers sounding alarm actuator (1061), drives loudspeaker (1062) and sends alerting signal.
9. locomotive closing signal triggering alarming device of railway switch as claimed in claim 7, it is characterized in that, described captions telltale (107) comprises circuit bonded assembly light display driver (1071) and telltale (1072), the warning energizing signal of described energizing signal output circuit (105) output triggers light display driver (1071), driving display (1072) display alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100255764A CN100455467C (en) | 2005-04-29 | 2005-04-29 | Locomotive closing signal triggering alarming device of railway switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100255764A CN100455467C (en) | 2005-04-29 | 2005-04-29 | Locomotive closing signal triggering alarming device of railway switch |
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| Publication Number | Publication Date |
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| CN1854001A CN1854001A (en) | 2006-11-01 |
| CN100455467C true CN100455467C (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100255764A Expired - Fee Related CN100455467C (en) | 2005-04-29 | 2005-04-29 | Locomotive closing signal triggering alarming device of railway switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102054329B (en) * | 2010-11-04 | 2012-07-25 | 山西大学 | Railway train approaching alarm system and alarm method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2084445U (en) * | 1991-01-03 | 1991-09-11 | 安康铁路新秦贸易公司 | Electric locomotive approach alarm |
| CN1065629A (en) * | 1991-04-12 | 1992-10-28 | 南京铁路分局常州站 | Pre-alarm display device for rail switches |
| WO1993012963A1 (en) * | 1991-12-28 | 1993-07-08 | British Railways Board | Track occupation warning system |
| CN2371087Y (en) * | 1999-06-01 | 2000-03-29 | 哈尔滨铁路局齐齐哈尔科学技术研究所 | Working recorder for railway level crossing gateman |
| CN2524998Y (en) * | 2001-12-30 | 2002-12-11 | 宝钢集团上海梅山有限公司 | High-sensitivity track circuit |
-
2005
- 2005-04-29 CN CNB2005100255764A patent/CN100455467C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2084445U (en) * | 1991-01-03 | 1991-09-11 | 安康铁路新秦贸易公司 | Electric locomotive approach alarm |
| CN1065629A (en) * | 1991-04-12 | 1992-10-28 | 南京铁路分局常州站 | Pre-alarm display device for rail switches |
| WO1993012963A1 (en) * | 1991-12-28 | 1993-07-08 | British Railways Board | Track occupation warning system |
| CN2371087Y (en) * | 1999-06-01 | 2000-03-29 | 哈尔滨铁路局齐齐哈尔科学技术研究所 | Working recorder for railway level crossing gateman |
| CN2524998Y (en) * | 2001-12-30 | 2002-12-11 | 宝钢集团上海梅山有限公司 | High-sensitivity track circuit |
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