CN200995700Y - Filament-conversion alarming system of scheduling signal indicator - Google Patents
Filament-conversion alarming system of scheduling signal indicator Download PDFInfo
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- CN200995700Y CN200995700Y CN 200620027503 CN200620027503U CN200995700Y CN 200995700 Y CN200995700 Y CN 200995700Y CN 200620027503 CN200620027503 CN 200620027503 CN 200620027503 U CN200620027503 U CN 200620027503U CN 200995700 Y CN200995700 Y CN 200995700Y
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Abstract
A shunting signal filament conversion alarm system includes a plurality of signal lights and signal supply circuits, which is characterized in that: the system also includes a host, a plurality of collecting machines and filament converters; the collecting machine includes a collecting central controller, a serial AD converter, a digital display, an external data storage and a key input circuit and the collecting central controller is respectively connected with the serial AD converter, the digital display, the external data storage and the key input circuit; the host includes a main controller, a power-on reset circuit, a watchdog circuit, a real-time clock circuit, a crystal oscillation circuit, a keyboard and an external data storage and the main controller is respectively connected with the power-on reset circuit, the watchdog circuit, the real-time clock circuit, the crystal oscillation circuit, the keyboard and the external data storage; a plurality of collecting central controllers are respectively connected with the main controller through the own bus circuit; the filament converter is arranged between the signal light transformer secondary side in each signal supply circuit and the signal light, a current sensor is arranged in a lighting circuit on the signal light transformer first side, and both ends of the current sensor are respectively connected with the serial AD converter in the collecting machine; the filament converter includes a fault signal generation circuit, a main and deputy filaments conversion circuit, a broken filament testing circuit, a fault signal sending circuit and a rectifier stabilizing circuit, the main and deputy filaments conversion circuit is respectively connected with the broken filament testing circuit and the signal supply circuit, the broken filament testing circuit is connected with the fault signal generation circuit and the fault signal sending circuit in turn.
Description
Technical field
The utility model relates to a kind of warning, in particular, relates to a kind of railway shunting signal filament conversion warning.
Background technology
Railway is the main artery of national economy, and signalling set is one of railway major technique equipment, and the good operation of signalling set is the reliable assurance of railway security and raising conveying efficiency.Signal as " eyes ", plays irreplaceable important role as the important component part of railway signals equipment in railways train operation and shunting service.
The signal of railway station mainly is divided into train signal machine and shunting signal two classes.Train signal machine negligible amounts, it is more concentrated to distribute, and it is located at the inlet at hair line two ends and station, is used to refer to train operation.And shunting signal quantity is more, is distributed in the bottle-neck section at whole station, and the scope that relates to more extensively and is relatively disperseed, and it is used to refer to shunting service.In order to improve accuracy and the reliability that signal shows, the signal bulb has been taked redundant measure, has adopted two filamentray structures, its objective is behind the main filament fracture of wire, can promptly be converted to the use auxiliary filament automatically, the assurance signal does not cut out, and shows and does not interrupt.The most of station of present China, filament burn out conversion warning has been installed on the train signal machine, and laid cable separately as the alarm message passage, and alarm for burnout of filaments information is passed to indoor, realized major and minor silk conversion of train signal and stubble warning device function.
But China's overwhelming majority station shunting signal is not also installed " filament conversion and stubble warning device system " at present.The major cause that influences shunting signal installation " filament conversion and stubble warning device system " is because shunting signal quantity is many, it is wide to distribute, if pattern according to train signal machine filament conversion warning, conversion of shunting signal filament and stubble warning device system are installed, adopt independent cable as the alarm message passage, need cabling in large quantities, cost is too high.And the shared a pair of cable of existing train signal machine filament conversion warning if be used on the shunting signal, more is difficult to realize reporting to the police specified place (signal) and position (lamp position) as the alarm message passage.Make troubles for repaired and processing.
Owing to above reason, up to the present China railways station shunting signal is not generally installed filament conversion warning, therefore, does not possess major and minor silk conversion and warning function.In case shunting signal bulb generation fracture of wire will cause the signal at stop or the fault of turning off the light, and will certainly influence the efficient and the safety of shunting service like this.If fault occurs on the shunting signal relevant with main track train route or private siding, may injure the safe and punctual of train, even can seriously disturb the railway transportation normal order.
The utility model content
The utility model is in order to overcome weak point of the prior art, to provide a kind of employing current sensor to sample, utilize existing tally circuit as the stubble warning device passage, being applicable to the warning that the conversion of shunting signal filament is reported to the police.
The utility model is achieved through the following technical solutions:
A kind of shunting signal filament conversion warning, comprise a plurality of signal lamps, signal lamp current supply circuit, it is characterized in that, also comprise main frame, a plurality of harvester and filament conv, described harvester comprises gathers central controller, serial AD changer, nixie display, external data memory, button inputting circuits, and described collection central controller is connected with serial AD changer, nixie display, external data memory, button inputting circuits respectively; Described main frame comprises master controller, electrify restoration circuit, watchdog circuit, real time clock circuit, crystal oscillating circuit, keyboard and external data memory, and described master controller is connected with electrify restoration circuit, watchdog circuit, real time clock circuit, crystal oscillating circuit, keyboard and external data memory respectively; The bus circuit that described a plurality of collection central controller passes through separately respectively is connected with described master controller; Be provided with the filament conv between sign lighting transformer secondary side in each signal lamp current supply circuit and the signal lamp, be provided with current sensor in the lamp circuit of described sign lighting transformer primary side, the two ends of described current sensor are connected with described harvester serial AD changer respectively; Described filament conv comprises that breakdown signal produces circuit, major-minor filament change-over circuit, fracture of wire testing circuit, breakdown signal transtation mission circuit and regulator rectifier circuit, described major-minor filament change-over circuit is connected with fracture of wire testing circuit, signal lamp current supply circuit respectively, described fracture of wire testing circuit produces circuit with breakdown signal, the breakdown signal transtation mission circuit is connected successively, and regulator rectifier circuit is connected with fracture of wire testing circuit, breakdown signal generation circuit, breakdown signal transtation mission circuit, signal lamp current supply circuit respectively.
Described major-minor filament change-over circuit is: an end of sign lighting transformer secondary side is connected with the common port of signal lamp, the main silk end of signal lamp is connected to an end of current relay, and the other end that the other end of relay is connected to the sign lighting transformer secondary side forms main silk current supply circuit; The intermediate ends of the secondary side of sign lighting transformer is connected to the paranema end of signal lamp by the open contact of two groups of parallel connections of described current relay, forms the paranema current supply circuit; The fracture of wire testing circuit comprises photoelectrical coupler, open contact one end of two groups of parallel connections of described current relay is connected to the light-emitting diode positive terminal of photoelectrical coupler through current-limiting resistance R1, the other end of the open contact of two groups of parallel connections of described current relay is connected to the light-emitting diode negative pole end of photoelectrical coupler, form the fracture of wire testing circuit, the emitter power connection ground of photoelectrical coupler, collecting electrode is connected with the output VCC end of rectification, mu balanced circuit through pull-up resistor R2.
Described breakdown signal transtation mission circuit is: current-limiting resistance R3 one end is connected with the mouth that breakdown signal produces circuit, the other end is connected with the multiple unit tube base stage that is composed in series by two aerotrons, the emitter power connection ground of described multiple unit tube, the collecting electrode of described multiple unit tube is connected to the end of load resistor R4 and the negative pole of light-emitting diode, the other end of load resistor R4 connects the output VSS end of regulator rectifier circuit, the positive pole of light-emitting diode is connected to current-limiting resistance R5, the other end of current-limiting resistance R5 connects the output VSS end of regulator rectifier circuit, forms the breakdown signal transtation mission circuit.
Described regulator rectifier circuit is: the input end IN1 of regulator rectifier circuit is connected to the secondary side intermediate ends of the voltage transformer T of signal lamp current supply circuit, the input end IN2 of regulator rectifier circuit is connected to secondary side and filament common port bonded assembly one end of voltage transformer T, the input end IN1 of regulator rectifier circuit, IN2 is connected respectively to the two ends of anti-thunder tube A1, the input end IN1 of regulator rectifier circuit is connected to the ac input end of rectifier bridge D1 by insurance, IN2 is connected to another ac input end of rectifier bridge D1, the cathode output end of rectifier bridge D1 is connected to power supply ground, the cathode output end of rectifier bridge is connected to the output VSS end of regulator rectifier circuit, capacitor C 1, two ends are connected respectively to regulator rectifier circuit output VSS end and power supply ground after the C2 parallel connection, the input end of three terminal regulator U1 is connected to the output VSS end of regulator rectifier circuit, termination power ground, three terminal regulator ground, the output VCC end of three terminal regulator output termination regulator rectifier circuit, capacitor C 3, be connected respectively to the output VCC end and the power supply ground of regulator rectifier circuit after the C4 parallel connection.
Described master controller is connected with printer interface circuit, display screen interface circuit, warning circuit respectively.
Described warning circuit comprises the multiple unit tube that two aerotrons are composed in series, and the base stage of described multiple unit tube is connected with master controller by current-limiting resistance, the grounded emitter of described multiple unit tube, and the collecting electrode of described multiple unit tube is connected with annunciator.
Each harvester is connected with the current sensor of 8 road signal lamps.
The utlity model has following technique effect:
1. warning of the present utility model adopts current sensor to sample, and utilizes existing tally circuit as the stubble warning device passage, for all shunting signals the stubble warning device system is installed possibility is provided, and cost of installation is low.
2. owing to the current relay in the filament conv is connected in the main silk loop, no matter its short circuit or open circuit, the capital falls relay, switch to the paranema state, guarantee that signal lamp works on, and form warning, avoided influence shunting service, reduced interference, the normal order of guarantee railway to railway transportation work.
3. when black light, the filament conv ensures that at the intermittent current of the dutycycles such as secondary side generation of filament transformer under all disconnected situation of major and minor filament, reliably falling of relay improved the reliability of work.In addition, two groups of node parallel connections of relay have also increased the reliability of stubble warning device.
Description of drawings
Fig. 1 is the scheme drawing of the utility model shunting signal filament conversion warning;
Fig. 2 is the scheme drawing of harvester;
Fig. 3 is the scheme drawing of main frame;
Fig. 4 is the scheme drawing of filament conv;
Fig. 5 is major-minor filament change-over circuit and fracture of wire testing circuit scheme drawing;
Fig. 6 is the scheme drawing of breakdown signal transtation mission circuit;
Fig. 7 is the scheme drawing of regulator rectifier circuit;
Fig. 8 produces circuit diagram for breakdown signal;
Fig. 9 is the scheme drawing of button inputting circuits;
Figure 10 is the scheme drawing of warning circuit.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
Fig. 1 is the scheme drawing of the utility model shunting signal filament conversion warning, comprises main frame, a plurality of harvester, a plurality of signal lamp, signal lamp current supply circuit and filament conv.Harvester is discerned the breakdown signal that filament conv far away sends, and failure code is sent to main frame.Every harvester can be monitored the state of eight road signal lamps at most.Fig. 2 is the scheme drawing of harvester, harvester comprises gathers central controller, serial AD changer, nixie display, external data memory, button inputting circuits, gathers central controller and is connected with serial AD changer, nixie display, external data memory, button inputting circuits respectively.Wherein, gather central process unit and adopt micro controller system 89S52, serial AD converter using TLC0838, nixie display can adopt the LED nixie display, button inputting circuits P1.0 to the P1.5 mouth of gathering central controller of serving as reasons is formed 4 * 2 button inputting circuits, its scheme drawing as shown in Figure 9, R7, R8, R9, R10 are pull-up resistor among the figure.
Fig. 3 is the scheme drawing of main frame, main frame comprises master controller, electrify restoration circuit, watchdog circuit, real time clock circuit, crystal oscillating circuit, keyboard and external data memory, and described master controller is connected with electrify restoration circuit, watchdog circuit, real time clock circuit, crystal oscillating circuit, keyboard and external data memory respectively.Wherein master controller adopts micro controller system 89552, and electrify restoration circuit and watchdog circuit adopt integrated circuit CAT1161, and real time clock circuit adopts DS12887.For easy to use, master controller also is connected with printer interface circuit, display screen interface circuit, warning circuit respectively.The RS485 bus circuit that a plurality of collection central controllers pass through separately respectively is connected with described master controller.Wherein printer interface circuit adopts general-duty parallel I/O interface chip 8255.Be provided with the filament conv between sign lighting transformer secondary side in each signal lamp current supply circuit and the signal lamp, be provided with current sensor in the lamp circuit of described sign lighting transformer primary side, the two ends of described current sensor are connected with harvester serial AD changer respectively.Fig. 4 is the scheme drawing of filament conv, the filament conv comprises that breakdown signal produces circuit, major-minor filament change-over circuit, fracture of wire testing circuit, breakdown signal transtation mission circuit and regulator rectifier circuit, major-minor filament change-over circuit is connected with fracture of wire testing circuit, signal lamp current supply circuit respectively, the fracture of wire testing circuit produces circuit with breakdown signal, the breakdown signal transtation mission circuit is connected successively, and regulator rectifier circuit is connected with local flaw signal testing circuit, breakdown signal generation circuit, breakdown signal transtation mission circuit, signal lamp current supply circuit respectively.Fig. 8 produces circuit diagram for breakdown signal, breakdown signal produces circuit can adopt micro controller system 89C2051, C7, R6 form the reset circuit of 89C2051 among the figure, C5, C6, X1 form the crystal oscillating circuit of 89C2051, the INT0 end that 6 pin are connected to the fracture of wire testing circuit is imported in the interruption of 89C2051, and the P1.2 mouth OUT of 89C2051 is connected to breakdown signal transtation mission circuit OUT end.It is the impulse singla of 20MS that this electric circuit inspection signal input part INT0 has no periodic, when signal input part INT0 has signal, the mouth OUT that breakdown signal produces circuit is a low level, when signal input part INT0 no signal, the mouth OUT output cycle that breakdown signal produces circuit is the impulse singla of 960MS.
Fig. 5 is major-minor filament change-over circuit and fracture of wire testing circuit scheme drawing, major-minor filament change-over circuit is: 3 ends of sign lighting transformer T secondary side are connected with the common port of signal lamp LAMP, the main silk end of signal lamp is connected to the end of current relay J, and 1 end that the other end of relay J is connected to sign lighting transformer T forms main silk current supply circuit.Secondary side 2 ends of sign lighting transformer T are connected to the paranema end of signal lamp by the open contact of two groups of parallel connections of current relay J, form the paranema current supply circuit.When the main silk fracture of wire of LAMP, no current flows through in the main silk current supply circuit, and the relay J dead electricity falls, and the relay J open contact is connected simultaneously, and the paranema current supply circuit is communicated with, and paranema gets electric lighting.Finish the automatic conversion of major and minor filament.
The fracture of wire testing circuit comprises photoelectrical coupler U3, open contact one end of two groups of parallel connections of current relay J is connected to anodal 1 end of light-emitting diode of photoelectrical coupler through current limliting R1, the other end of the open contact of two groups of parallel connections of described current relay J is connected to light-emitting diode negative pole 2 ends of photoelectrical coupler, form the fracture of wire testing circuit, the emitter 4 termination power ground of photoelectrical coupler, collecting electrode 5 ends of photoelectrical coupler are connected with the output VCC end of regulator rectifier circuit through pull-up resistor R2.Like this, no matter be main silk fracture of wire, or the cold fracture of wire of paranema, the equal no current of 1,2 ends of photoelectrical coupler passes through, and also just can not get impulse singla at the INT0 end, and the INT0 end is connected to breakdown signal and produces circuit.
Fig. 6 is the scheme drawing of breakdown signal transtation mission circuit, current-limiting resistance R3 one end is connected with the mouth (OUT end) that breakdown signal produces circuit, the other end with by two aerotron Q1, the multiple unit tube base stage that Q2 is composed in series connects, the emitter power connection ground of multiple unit tube, the collecting electrode of multiple unit tube is connected to the end of load resistor R4 and the negative pole of light-emitting diode, the other end of load resistor R4 connects the output VSS end of regulator rectifier circuit, the positive pole of light-emitting diode is connected to current-limiting resistance R5, the other end of current-limiting resistance R5 connects the output VSS end of regulator rectifier circuit, forms the breakdown signal transtation mission circuit.
Fig. 7 is the regulator rectifier circuit scheme drawing, the input end IN1 of regulator rectifier circuit is connected to secondary side 2 ends of the voltage transformer T of signal lamp current supply circuit among the figure, the input end IN2 of regulator rectifier circuit is connected to secondary side 3 ends of voltage transformer T, IN1, IN2 is connected respectively to the two ends of anti-thunder tube A1, the input end IN1 of regulator rectifier circuit imports 1 end by the interchange that insurance FUSE is connected to rectifier bridge D1, IN2 is connected to the interchange of rectifier bridge D1 and imports 2 ends, negative pole output-the end of rectifier bridge D1 is connected to power supply ground, positive pole output+the end of rectifier bridge D1 is connected to the VSS of regulator rectifier circuit, capacitor C 1, two ends are connected respectively to the VSS and the power supply ground of regulator rectifier circuit after the C2 parallel connection, input 1 end of three terminal regulator U1 is connected to VSS, 3 termination power ground are held on the ground of three terminal regulator, the output VCC of the output 2 termination regulator rectifier circuits of three terminal regulator, capacitor C 3, be connected respectively to the output VCC and the power supply ground of regulator rectifier circuit after the C4 parallel connection.
Figure 10 is the scheme drawing of warning circuit, warning circuit comprises the multiple unit tube that two aerotron Q3, Q4 form, the base stage of multiple unit tube is connected with master controller by current-limiting resistance R11, the grounded emitter of multiple unit tube, the collecting electrode of multiple unit tube is connected with annunciator, and the other end of annunciator is connected to power supply+12V.
Every road signal lamp all must be installed the filament conv, and every harvester all has a fixed number, and the numbering of each harvester is unique.Each harvester maximum can be connected with the current sensor of 8 road signal lamps, detects the state of 8 road signal lamps of four signals.The filament conv is installed on every road signal lamp of signal, and radical function is that fracture of wire detects, main silk fracture of wire switches to paranema work and sends breakdown signal.Harvester is installed on the unit block assembly rack of signal Machine Room, and each harvester is monitored the signal state that connects with it, and the state of signal is sent to main frame.All harvesters are connected with main frame, by each harvester of host computer polls, obtain the state of each road signal, and handle accordingly.Harvester and main frame all work alone, and do not have direct physical connection with original signal lamp current supply circuit, therefore, can not have influence on original signal lamp current supply circuit.
When main fracture of wire, current relay J dead electricity falls, and the relay J normally closed contact is connected, and paranema gets electric work.The fracture of wire testing circuit detects paranema work simultaneously, sends this information to breakdown signal by the INT0 end and produces circuit.Breakdown signal produces circuit and starts the breakdown signal transtation mission circuit by the OUT end, finishes alerting signal and transmits.The breakdown signal transtation mission circuit sends to regulator rectifier circuit with breakdown signal by the VSS end, the variation of the current value of dutycycles such as generation, this electric current variation clocklike makes the secondary side of voltage transformer T produce the variation of electric current, and makes the primary side of voltage transformer produce the electric current variation equally.Be installed in the current value that the current sensor of voltage transformer primary side just can obtain changing, judged whether that by harvester fault takes place.When fault takes place, harvester will show the faulty channel code on its double figures sign indicating number pipe, simultaneously failure code is sent to main frame by the RS485 bus that links to each other with main frame, main frame is translated the failure code that receives, on the LCDs of main frame, demonstrate the actual numbering of cooresponding signal lamp, and start annunciator and report to the police, simultaneously this alarm message is deposited in the memory device of main frame, in order to inquiry.Behind failure recovery, Host Shutdown is reported to the police, and with the warning recovering information.Behind failure recovery, breakdown signal produces circuit and stops to send breakdown signal.
Although the disclosed a kind of shunting signal filament conversion warning that relates to has been carried out special description with reference to embodiment, embodiment described above is illustrative and not restrictive, under the situation that does not break away from spirit and scope of the present utility model, all variations and modification are all within scope of the present utility model.
Claims (7)
1, a kind of shunting signal filament conversion warning, comprise a plurality of signal lamps, signal lamp current supply circuit, it is characterized in that, also comprise main frame, a plurality of harvester and filament conv, described harvester comprises gathers central controller, serial AD changer, nixie display, external data memory, button inputting circuits, and described collection central controller is connected with serial AD changer, nixie display, external data memory, button inputting circuits respectively; Described main frame comprises master controller, electrify restoration circuit, watchdog circuit, real time clock circuit, crystal oscillating circuit, keyboard and external data memory, and described master controller is connected with electrify restoration circuit, watchdog circuit, real time clock circuit, crystal oscillating circuit, keyboard and external data memory respectively; The bus circuit that described a plurality of collection central controller passes through separately respectively is connected with described master controller; Be provided with the filament conv between sign lighting transformer secondary side in each signal lamp current supply circuit and the signal lamp, be provided with current sensor in the lamp circuit of described sign lighting transformer primary side, the two ends of described current sensor are connected with described harvester serial AD changer respectively; Described filament conv comprises that breakdown signal produces circuit, major-minor filament change-over circuit, fracture of wire testing circuit, breakdown signal transtation mission circuit and regulator rectifier circuit, described major-minor filament change-over circuit is connected with fracture of wire testing circuit, signal lamp current supply circuit respectively, described fracture of wire testing circuit produces circuit with breakdown signal, the breakdown signal transtation mission circuit is connected successively, and regulator rectifier circuit is connected with fracture of wire testing circuit, breakdown signal generation circuit, breakdown signal transtation mission circuit, signal lamp current supply circuit respectively.
2, shunting signal filament conversion warning according to claim 1, it is characterized in that, described major-minor filament change-over circuit is: an end of sign lighting transformer secondary side is connected with the common port of signal lamp, the main silk end of signal lamp is connected to an end of current relay, and the other end that the other end of relay is connected to the sign lighting transformer secondary side forms main silk current supply circuit; The intermediate ends of the secondary side of sign lighting transformer is connected to the paranema end of signal lamp by the open contact of two groups of parallel connections of described current relay, forms the paranema current supply circuit; The fracture of wire testing circuit comprises photoelectrical coupler, open contact one end of two groups of parallel connections of described current relay is connected to the light-emitting diode positive terminal of photoelectrical coupler through current-limiting resistance R1, the other end of the open contact of two groups of parallel connections of described current relay is connected to the light-emitting diode negative pole end of photoelectrical coupler, form the fracture of wire testing circuit, the emitter power connection ground of photoelectrical coupler, collecting electrode is connected with the output VCC end of rectification, mu balanced circuit through pull-up resistor R2.
3, shunting signal filament conversion warning according to claim 2, it is characterized in that, described breakdown signal transtation mission circuit is: current-limiting resistance R3 one end is connected with the mouth that breakdown signal produces circuit, the other end is connected with the multiple unit tube base stage that is composed in series by two aerotrons, the emitter power connection ground of described multiple unit tube, the collecting electrode of described multiple unit tube is connected to the end of load resistor R4 and the negative pole of light-emitting diode, the other end of load resistor R4 connects the output VSS end of regulator rectifier circuit, the positive pole of light-emitting diode is connected to current-limiting resistance R5, the other end of current-limiting resistance R5 connects the output VSS end of regulator rectifier circuit, forms the breakdown signal transtation mission circuit.
4, shunting signal filament conversion warning according to claim 3, it is characterized in that, described regulator rectifier circuit is: the input end IN1 of regulator rectifier circuit is connected to the secondary side intermediate ends of the voltage transformer T of signal lamp current supply circuit, the input end IN2 of regulator rectifier circuit is connected to secondary side and filament common port bonded assembly one end of voltage transformer T, the input end IN1 of regulator rectifier circuit, IN2 is connected respectively to the two ends of anti-thunder tube A1, the input end IN1 of regulator rectifier circuit is connected to the ac input end of rectifier bridge D1 by insurance, IN2 is connected to another ac input end of rectifier bridge D1, the cathode output end of rectifier bridge D1 is connected to power supply ground, the cathode output end of rectifier bridge is connected to the output VSS end of regulator rectifier circuit, capacitor C 1, two ends are connected respectively to regulator rectifier circuit output VSS end and power supply ground after the C2 parallel connection, the input end of three terminal regulator U1 is connected to the output VSS end of regulator rectifier circuit, termination power ground, three terminal regulator ground, the output VCC end of three terminal regulator output termination regulator rectifier circuit, capacitor C 3, be connected respectively to the output VCC end and the power supply ground of regulator rectifier circuit after the C4 parallel connection.
5, shunting signal filament conversion warning according to claim 1 is characterized in that described master controller is connected with printer interface circuit, display screen interface circuit, warning circuit respectively.
6, shunting signal filament conversion warning according to claim 5, it is characterized in that, described warning circuit comprises the multiple unit tube that two aerotrons are composed in series, the base stage of described multiple unit tube is connected with master controller by current-limiting resistance, the grounded emitter of described multiple unit tube, the collecting electrode of described multiple unit tube is connected with annunciator.
7, shunting signal filament conversion warning according to claim 1 is characterized in that each harvester is connected with the current sensor of 8 road signal lamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027503 CN200995700Y (en) | 2006-10-10 | 2006-10-10 | Filament-conversion alarming system of scheduling signal indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027503 CN200995700Y (en) | 2006-10-10 | 2006-10-10 | Filament-conversion alarming system of scheduling signal indicator |
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| Publication Number | Publication Date |
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| CN200995700Y true CN200995700Y (en) | 2007-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620027503 Expired - Lifetime CN200995700Y (en) | 2006-10-10 | 2006-10-10 | Filament-conversion alarming system of scheduling signal indicator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437344B (en) * | 2008-12-22 | 2012-05-23 | 生茂光电科技股份有限公司 | Normally-on fault protection circuit for traffic signal lamp |
| CN107728563A (en) * | 2017-09-29 | 2018-02-23 | 卡斯柯信号有限公司 | A kind of filament alarm detector and method based on PLC technology |
| CN109613453A (en) * | 2018-12-25 | 2019-04-12 | 天津铁信达科技发展有限公司 | Railway signal fault monitoring system |
| CN110557866A (en) * | 2019-09-11 | 2019-12-10 | 中铁工程设计咨询集团有限公司 | LED lighting system with cold wire supervision function |
| CN111587203A (en) * | 2017-09-19 | 2020-08-25 | 日立铁路信号装置股份有限公司 | Light-emitting equipment for railway signal lights, etc. and management method thereof |
-
2006
- 2006-10-10 CN CN 200620027503 patent/CN200995700Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437344B (en) * | 2008-12-22 | 2012-05-23 | 生茂光电科技股份有限公司 | Normally-on fault protection circuit for traffic signal lamp |
| CN111587203A (en) * | 2017-09-19 | 2020-08-25 | 日立铁路信号装置股份有限公司 | Light-emitting equipment for railway signal lights, etc. and management method thereof |
| CN107728563A (en) * | 2017-09-29 | 2018-02-23 | 卡斯柯信号有限公司 | A kind of filament alarm detector and method based on PLC technology |
| CN107728563B (en) * | 2017-09-29 | 2024-06-04 | 卡斯柯信号有限公司 | Filament alarm detection device and method based on PLC technology |
| CN109613453A (en) * | 2018-12-25 | 2019-04-12 | 天津铁信达科技发展有限公司 | Railway signal fault monitoring system |
| CN110557866A (en) * | 2019-09-11 | 2019-12-10 | 中铁工程设计咨询集团有限公司 | LED lighting system with cold wire supervision function |
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