CN1203161A - Computerized autocontrolling equipment for railway crossing - Google Patents
Computerized autocontrolling equipment for railway crossing Download PDFInfo
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- CN1203161A CN1203161A CN 97107017 CN97107017A CN1203161A CN 1203161 A CN1203161 A CN 1203161A CN 97107017 CN97107017 CN 97107017 CN 97107017 A CN97107017 A CN 97107017A CN 1203161 A CN1203161 A CN 1203161A
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Abstract
A microcomputerized autocontrol device for railway crossing is composed of sensing unit, safe protecting unit for crossing, power supply and microcomputer controller. Said sensing unit is divided into three groups of magnetoelectric sensors set up at the up-going section, crossing, and down-going section respectively. The microcomputer controller is composed of single-chip computer and peripheral chips. After shaping and photoelectric isolation, the signals from sensors are used as interrupt source of CPU, whose output signal is used as control one of safe protecting unit after photoelectric isolation. The entire management process of railway crossing in a local range can be automized.
Description
The present invention relates to the level crossing automatic control device.
Along with the development of society, communications and transportation is busy day by day, and traffic accident increases thereupon, and the level crossing accident rises year by year, brings enormous economic loss and bad social influence.At present, the equipment and the integrated management level of the level crossing safety protection equipment of China are lower, and manually operated mode of operation more and more can't satisfy social needs.
The objective of the invention is to avoid above-mentioned weak point of the prior art, a kind of Computerized autocontrolling equipment for railway crossing is provided, adopt system controlled by computer, with machine ringing, automatically the notice and automatic operated barrier effectively combine, realize level crossing signal automatic guidance, replace the present situation of labor management, to improve the level crossing safety factor, reduce personal injury and economic loss that the level crossing accident is brought, reduce labor strength simultaneously, save the labour.
Purpose of the present invention is achieved through the following technical solutions.
The present invention is made of sensing device, crossing safety protective device, supply unit and computer control device, and described crossing safety protective device comprises grade crossing signal mechanism, road junction control panel and the Electric gate that is made of sounder, Der Blink und Abblendschalter and white lamp.Its architectural feature is:
A, described sensing device adopt magnetoelectric sensor, establish three groups altogether, one group is positioned at up section of controlled road junction, another group is positioned at descending section of controlled road junction, one group is positioned at place, controlled road junction again, every group at least two, be oppositely arranged on the same position place both sides rail, each sensor output exports computer control device to through amplification shaping, photoelectricity coupling;
B, described supply unit by rechargable power supplies, DC-DC changer, and storage battery form;
C, described computer control device adopt 8-bit microcontroller IC3 as central processor CPU, at its peripheral program store IC5 that is equipped with, journey I expansion interface IC7 chip is micro controller system IC3 expansion IO port by contracting, be micro controller system IC3 expansion exterior interrupt by programmable interrupt controller IC6, and adopt keyboard special, telltale control chip IC8; Wherein, the sensor sensing signal is delivered to interrupt controller IC6 after conversion, as the interrupt source INT1 of central process unit IC3; Central process unit IC3 port P13, P14 output sound equipment and Der Blink und Abblendschalter control signal, port P11 bring out roadway gate fall control signal, lift control signal at port P12 output roadway gate, at port P14, P15 output room sounding, Der Blink und Abblendschalter control signal, at port P16 output transducer self check control signal; Simultaneously, accept sensor self check control signal at the port PA of described expansion interface IC7 chip, port PC exports the road junction control panel to.
When any direction train during near the road junction, induced signal according to sensor, computer control device is judged the service direction and the speed of train, produce control signal and make the sounder in the crossing safety protective device send chimes of doom, and the control Der Blink und Abblendschalter extinguishes white light, red colored lamp is flash of light alternately, subsequently, microcomputer sends control signal again, and the control Electric gate falls, the sealing road junction.Fully by behind the road junction, microcomputer sends control signal at train, and audible alarm and red light are cancelled, and recover steady light with white light simultaneously, and the control Electric gate rises.Compared with the prior art, the present invention has following advantage:
1, the present invention can make the whole management process round Realization automation at railway section road junction, and the labour intensity that will change present management manually is big, the present situation of poor reliability, makes the level of management of railway crossing move towards modernization.
2, supply unit of the present invention has the power-failure protecting function more than 10 hours, can prevent the generation of the casualty accident that causes because of power failure.
3, the present invention adopts unified hardware circuit, is used appropriate software, can adapt on the interval road junction under different condition to use.
4, the present invention adopts the crossing safety protective device in the prior art, by the man-auto switching device is set, can realize automatic or manual control arbitrarily, and, do not disturb mutually with original signalling set, be adapted to the railway section road junction of various condition of service such as automatic block district, non-automatic block district.
5, the present invention adopts magnetoelectric sensor, and in order to detect the train running signal, this sensor construction is simple, easy for installation, can long-term work under vibration, the mal-condition that impacts, be not subjected to the influence of environment (as Exposure to Sunlight, drench with rain, greasy dirt, dust etc.).
6, computer control device also can normally be realized timing alarm comparatively accurately near the train at road junction to various simultaneously among the present invention; Can monitor, monitor sensor, alarm work state and failure condition voluntarily.
Fig. 1 is a schematic block circuit diagram of the present invention.
Fig. 2 is the sensor of the present invention structural representation of arranging.
By the following examples, in conjunction with the accompanying drawings the present invention is further described.
Embodiment:
Referring to Fig. 1, constitute by sensing device, crossing safety protective device, supply unit and computer control device.
As shown in Figure 1, sensing device comprises sensor K1, K11, D1, D2, K2, K21, and sensor signal amplification and rectification circuit and photoelectric isolating circuit.
The crossing safety protective device comprises grade crossing signal mechanism, road junction control panel and the Electric gate that is made of sounder, Der Blink und Abblendschalter and white lamp.
Supply unit is made of rechargable power supplies, battery pack and DC-DC changer.
Microcomputer device is a central process unit with micro controller system IC3, constitutes computer application system with peripheral chip IC6, chip IC 7, chip IC 8 and chip IC 5.And be that this system is provided with the halt reset circuit that is made of Watchdog (house dog) circuit and reset circuit.
Because transducing signal needs just can send into Single Chip Microcomputer (SCM) system through long line transmission, and the external device of the required control of micro controller system, as roadway gate motor, signal lamp all are high power loads, be easy to Single Chip Microcomputer (SCM) system is formed interference, therefore, adopt photoelectrical coupler as shown in Figure 1, make IO passage and single chip circuit implement electricity and isolate.
In the present embodiment, computer control device adopts 8-bit microcontroller IC3 as central processor CPU, be micro controller system IC3 expansion IO port by programmable parallel IO expansion interface IC7 chip, be micro controller system IC3 expansion exterior interrupt by programmable interrupt controller IC6, and adopt keyboard special, telltale control chip IC8.Chip IC 3 employings 8031, chip IC 7 employings 8255, chip IC 6 employings 8259, chip IC 8 adopt 8279.Wherein, sensor sensing signal IN11, IN12 ,-IN61, IN62 through amplify shaping, photoelectricity is isolated, and delivers to interrupt controller IC6, as the interrupt source INT1 of central process unit IC3; Central process unit IC3 port P13, P14 output sound equipment and Der Blink und Abblendschalter control signal, port P11 bring out roadway gate fall control signal, lift control signal at port P12 output roadway gate, at port P14, P15 output room sounding, Der Blink und Abblendschalter control signal, at port P16 output transducer self check control signal; Simultaneously, accept sensor self check control signal at the port PA of described expansion interface IC7 chip, port PC exports the road junction control panel to.
The exterior interrupt of the 6 pairs of micro controller systems of chip IC in the present embodiment is expanded, and can manage 8-64 level interrupt source, makes the hardware of this device applicable to the requirement of different railway crossings.
Supply unit by rechargable power supplies AD330313, DC-DC changer AZ256, and storage battery form.The uninterruptedly continuous working of this circuit, and can just fill storage battery, floating charge, it provides+the 48V direct supply for Electric gate.This rechargable power supplies is simultaneously again as the primary side power supply of DC-DC changer, by DC-DC changer output+24V ,+15V ,+12V ,-12V and+the 5V power supply is for other each several part use.
Watchdog among the figure (house dog) circuit and reset circuit constitute halt reset circuit.Central process unit IC3 is in being no more than the time gap of 1MC, send a trigging pulse for this reset circuit by port P10, make its output keep high level, if system is because of the interference reset circuit output step-down that occurs crashing then, produce a reset pulse and deliver to the RESET signal input part that resets of IC3, force system reset, break away from the deadlock state.
Referring to Fig. 2, sensing device adopts magnetoelectric sensor K1, K11, D1, D2, K2, K21, establish three groups altogether, one group of K1, K11 are positioned at up section 1 at controlled road junction, another group K2, K21 are positioned at descending section 3 at controlled road junction, one group of D1, D2 are positioned at 2 places, controlled road junction again, at least two every group, the output of each sensor IN11, IN12, IN21 ,-IN61, IN62 through amplify shaping, the photoelectricity coupling exports computer control device to.In the present embodiment, sensor is installed and should be guaranteed that the sensor upper surface is 30mm-32mm apart from the distance of rail upper surface, sensor between distance less than 1/2nd vehicle wheel distances, be set at 50cm in the present embodiment.
Computer control device in the present embodiment adopts the job scheduling mode to manage, and decides next cover task according to job scheduling.
At first judge reset types after device resets, check promptly whether the inside of micro controller system internal storage location (52H, 53H) is specific data (going up electrosemaphore), if not, self check and initialization are carried out in then capable cold start-up, and set up and go up electrosemaphore.So far, finish the dead work of microcomputer system, can singly carry out schedule job according to scheduling.
The single content of scheduling is interrupted and working state of system adjustment or modification according to sensor interruption, regularly interruption, button by micro controller system, if the train of up direction arrives the up points of proximity, then magnetoelectric transducer K1, K11 produce interrupt signal, in view of the above, CPU can differentiate and has or not train and train running direction, and calculate the railway car joint number, single the reaching of scheduling is " up warning " schedule job.At this moment, CPU sends control command, allows sounder, Der Blink und Abblendschalter devote oneself to work, and white lamp extinguishes, and the control Electric gate falls to sealing the road junction after 13 seconds.When train arrived the road junction, sensor D1, D2 produced interrupt signal, and when CPU detected train fully by the road junction, then scheduling is single was " up go out clearly ", and at this moment, CPU sends control, the cancellation audible alarm, and red light extinguishes, Bai Dengliang, roadway gate rise slowly simultaneously.When train arrives the descending points of proximity or by behind the certain hour of road junction, system carries out " going up horizontal reset " scheduling, state restoration." descending warning ", " descending go out clearly " are corresponding with it with " following horizontal reset " three kinds of mode of operation.
If sensor or other parts break down, then carry out " fault handling " scheduling.As a working sensor state mal is arranged among K1, the K11, system gives digital and room sounding information except that carrying out the Normal Alarm task.If system then carries out " operation error handling processing " system and carries out warm start and carry out system recovery because of being interfered or run-time error appears in fault.For example, the PC pointer enters " trap of makeing mistakes " or Watchdog circuit generation reset pulse.
Claims (2)
1, a kind of Computerized autocontrolling equipment for railway crossing, constitute by sensing device, crossing safety protective device, supply unit and computer control device, described crossing safety protective device comprises grade crossing signal mechanism, road junction control panel and the Electric gate that is made of sounder, Der Blink und Abblendschalter and white lamp, it is characterized in that:
A, described sensing device adopt magnetoelectric sensor (K1, K11, D1, D2, K2, K21), establish three groups altogether, one group (K1, K11) is positioned at up section of controlled road junction (1), another group (K2, K21) is positioned at descending section of controlled road junction (3), one group again (D1, D2) is positioned at controlled road junction (2) and locates, every group at least two, each sensor output (IN11, IN12-IN61, IN62) exports computer control device to through amplification shaping, photoelectricity coupling;
B, described supply unit by rechargable power supplies AD330313, DC-DC changer A Z256, and storage battery form;
C, described computer control device adopt 8-bit microcontroller IC3 (8031) as central processor CPU, at its peripheral program store IC5 (2764) that is equipped with, be micro controller system IC3 expansion IO port by programmable parallel IO expansion interface IC7 (8255) chip, be micro controller system IC3 expansion exterior interrupt by programmable interrupt controller IC6 (8259), and adopt keyboard special, telltale control chip IC8 (8279); Wherein, the sensor sensing signal is delivered to interrupt controller IC6 after conversion, as the interrupt source INT1 of central process unit IC3; Central process unit IC3 port P13, P14 output sound equipment and Der Blink und Abblendschalter control signal, port P11 bring out roadway gate fall control signal, lift control signal at port P12 output roadway gate, at port P14, P15 output room sounding, Der Blink und Abblendschalter control signal, at port P16 output transducer self check control signal; Simultaneously, accept sensor self check control signal at the port PA of described expansion interface IC7 chip, port PC exports the road junction control panel to.
2, Computerized autocontrolling equipment for railway crossing according to claim 1 is characterized in that, in the described sensing device, every group of transducer spacing is less than 1/2nd vehicle wheel distances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97107017 CN1105660C (en) | 1997-06-20 | 1997-06-20 | Computerized autocontrolling equipment for railway crossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97107017 CN1105660C (en) | 1997-06-20 | 1997-06-20 | Computerized autocontrolling equipment for railway crossing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1203161A true CN1203161A (en) | 1998-12-30 |
| CN1105660C CN1105660C (en) | 2003-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97107017 Expired - Fee Related CN1105660C (en) | 1997-06-20 | 1997-06-20 | Computerized autocontrolling equipment for railway crossing |
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| Country | Link |
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| CN (1) | CN1105660C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092200A1 (en) * | 2007-12-27 | 2009-07-30 | Nuctech Company Limited | Automatic identification method and system for train information |
| CN103481919A (en) * | 2012-06-12 | 2014-01-01 | 成都众山科技有限公司 | Mine railway crossing monitoring system based on GPRS (general packet radio service) communication |
| CN103489293A (en) * | 2012-06-12 | 2014-01-01 | 成都众山科技有限公司 | General packet radio service (GPRS) signal transmission circuit for monitoring mine railway crossings |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100562451C (en) * | 2004-02-03 | 2009-11-25 | 通用电气公司 | Railway controller with improved application programming |
-
1997
- 1997-06-20 CN CN 97107017 patent/CN1105660C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092200A1 (en) * | 2007-12-27 | 2009-07-30 | Nuctech Company Limited | Automatic identification method and system for train information |
| US8509969B2 (en) | 2007-12-27 | 2013-08-13 | Nuctech Company Limited | Automatic identification method and system for train information |
| CN103481919A (en) * | 2012-06-12 | 2014-01-01 | 成都众山科技有限公司 | Mine railway crossing monitoring system based on GPRS (general packet radio service) communication |
| CN103489293A (en) * | 2012-06-12 | 2014-01-01 | 成都众山科技有限公司 | General packet radio service (GPRS) signal transmission circuit for monitoring mine railway crossings |
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| Publication number | Publication date |
|---|---|
| CN1105660C (en) | 2003-04-16 |
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