CN201745607U - Wireless sensing-type railroad crossing alarm - Google Patents
Wireless sensing-type railroad crossing alarm Download PDFInfo
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- CN201745607U CN201745607U CN2010202266670U CN201020226667U CN201745607U CN 201745607 U CN201745607 U CN 201745607U CN 2010202266670 U CN2010202266670 U CN 2010202266670U CN 201020226667 U CN201020226667 U CN 201020226667U CN 201745607 U CN201745607 U CN 201745607U
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Abstract
The utility model discloses a wireless sensing-type railroad crossing alarm, which is composed of a rail part, an onboard part and a crossing part, wherein the rail part comprises a pulse voltage generating circuit, a rail part three-terminal voltage stabilizing circuit, a rail part control circuit and a wireless transmission circuit, the onboard part comprises a wireless reader, an onboard part control circuit, a display circuit, an onboard part communication interface circuit, an onboard part data radio, an onboard part rectification circuit and an onboard part three-terminal voltage stabilizing circuit; and the crossing part comprises a crossing part data radio, a crossing part communication interface circuit, a crossing part control circuit, a driving circuit, a crossing part rectification circuit and a crossing part three-terminal voltage stabilizing circuit. The wireless sensing-type railroad crossing alarm has the advantages that: traditional power supply manner is replaced with the energy generated by wheels through electromagnetic sensors, power supply, ditching and wiring are all avoided, cost is lowered while later maintenance is also avoided, the equipment has high running reliability, and the crossing equipment can work automatically under the unmanned state.
Description
Technical field
The utility model relates to a kind of level crossing annunciator, particularly a kind of wireless sensing type level crossing annunciator, be applicable to the level crossing of railway and highway,, make jaws equipment send sound and light alarm and put down roadway gate sealing road junction when train during near road junction 1-2 kilometer.
Background technology
At present, traditional sensor type level crossing annunciator is made up of main frame, sensor, grade crossing signal lamp mechanism etc.; It is several that it mainly is divided into 220V power supply wire transmission formula sensor, solar powered mode of wireless transmission sensor, railway voltage sensor.Above product principle of work roughly is: sensor is installed in apart from the rail outside the 1-2 kilometer of road junction, when train wheel passes through sensor, pulse voltage of sensor output is as passing through signal, should transfer to the other grade crossing signal lamp mechanism of installing in road junction by signal, grade crossing signal lamp mechanism sends sound, light is reported to the police and reminded the vehicular traffic pedestrian to note.But there is very big drawback in these warning devices: first, 220V power supply wire transmission formula sensor, the sensing device of this annunciator need be installed in apart from the rail beyond the 1-2 kilometer of road junction, needs ditching, is routed to the power taking of room, road junction, has wasted great amount of manpower and material resources.The second, solar powered mode of wireless transmission sensor though can solve ditching, the wasting defective that connects up, has also increased the cost of product and the maintenance cost in later stage simultaneously; It mainly shows: 1, the installation of solar power supply unit is very harsh to the region environment requirement, all can cause product to use as factors such as sunshine-duration, temperature; 2, the cleaned at regular intervals on solar panel surface because the particular surroundings of equipment erecting stage causes the solar panel surface often to adhere to dust, thereby very influences the normal use of solar panel; 3, are subjected to the influence of environment very big in the periodical maintenance of storage battery and service life, be generally the service life of storage battery about 1 year, use on-the-spot particular surroundings but be based on, the storage battery service life of this product even shorter, thus strengthened the after-cost of product in the middle of use.The 3rd, the sensor of railway voltage, consumption is few at present, the product degree of ripeness is low, safety factor is low, if sensor breaks down, then may directly influence the normal operation of microcomputer locking system, causes a serious accident.
The utility model content
The purpose of this utility model is: design a kind of can cost-cutting and the wireless sensing type level crossing annunciator of later maintenance expense, this annunciator can utilize wheel to produce pulse voltage by magnetoelectric sensor and power for emission coefficient, and send the location information of sensor to the train that passes through, receive the distance that demonstrates after the location information of sensor according to road junction, the place ahead when onboard system, and open crossing protection equipment (sound, light panalarm, Electric gate machine etc.) by the radio station and seal the road junction; Warning is closed after train is by the road junction sensor.
The purpose of this utility model can be achieved through the following technical solutions:
This wireless sensing type level crossing annunciator, by rail portion, vehicle-mounted partial sum road notch portion is formed, it is characterized in that: described rail portion comprises that pulse voltage produces circuit, rail portion three-terminal voltage-stabilizing circuit, rail portion control circuit and radio transmitter, rail portion is used for when train wheel passes through magnetoelectric sensor, produce circuit by pulse voltage and produce pulse voltage, one the tunnel gives the power supply of rail portion system, one the tunnel gives rail portion control circuit wheel signal after light-coupled isolation, wheel signal sends to vehicle-mounted part by radio transmitter after the rail portion control circuit is handled, in addition, pulse voltage produces the pulse voltage of circuit generation after the voltage stabilizing of rail portion three-terminal voltage-stabilizing circuit, gives the power supply of rail portion control circuit separately; Vehicle-mounted part comprises wireless code reader, vehicle-mounted part control circuit, display unit, vehicle-mounted part communication interface circuit, vehicle-mounted part data radio station, vehicle-mounted partial rectification circuit and vehicle-mounted part three-terminal voltage-stabilizing circuit, vehicle-mounted part is used for receiving wheel signal that rail portion sends and after vehicle-mounted part control system is handled when wireless code reader, the display unit of leading up to is shown to train crews, vehicle-mounted part data radio station is arrived by vehicle-mounted part communication interface circuit in another road, and by vehicle-mounted part data radio station to road notch portion emission remote signal, vehicle-mounted partial rectification circuit and vehicle-mounted part three-terminal voltage-stabilizing circuit are used for the commercial power rectification again after the voltage stabilizing, give the power supply of vehicle-mounted part system; The road notch portion comprises the notch portion data radio station, road notch portion communication interface circuit, road notch portion control circuit, driving circuit, road junction partial rectification circuit and road notch portion three-terminal voltage-stabilizing circuit, the road notch portion is used to hold sway the notch portion data radio station when receiving the remote signal of vehicle-mounted part, remote signal is arrived road notch portion control circuit by road notch portion communication interface circuit transmission, and after road notch portion control circuit is handled, drive output relay output remote signal by driving circuit, guide sound, the start and stop of equipment such as light panalarm and Electric gate machine, road junction partial rectification circuit and road notch portion three-terminal voltage-stabilizing circuit are used for again after the voltage stabilizing, giving notch portion system power supply in road with the commercial power rectification; Between rail portion and the vehicle-mounted part, be wireless telecommunications between vehicle-mounted part and the road notch portion and be connected.
Pulse voltage in the rail portion described in the utility model produces circuit magnetoelectric sensor L1 and L2, full bridge rectifier D1 and D2 and optocoupler U9 and U10; Three-terminal voltage-stabilizing chip U1 is arranged in the rail portion three-terminal voltage-stabilizing circuit, and its model is MC7805T; Micro controller system U2,6M crystal oscillator and toggle switch S17 are arranged in the rail portion control circuit, and the model of its micro controller system U2 is 8051; Wireless code sender J1, driving resistor R7, R8, R9 and R10 and aerotron Q1, Q2, Q3 and Q4 are arranged in the radio transmitter, and the model of it is wireless code sender J1 is CON6;
Its annexation is: in pulse voltage produces circuit, the end of magnetoelectric sensor L1 is connected to the positive pole of light-emitting diode in the optocoupler U9 by resistance R 11, the end of magnetoelectric sensor L1 also is connected to the 3rd pin of full bridge rectifier D1 simultaneously, the other end of magnetoelectric sensor L1 is connected to the negative pole of light-emitting diode in the optocoupler U9, also be connected to simultaneously the 1st pin of full bridge rectifier D1, the emitter of aerotron is connected to the 4th pin of full bridge rectifier D1 in the optocoupler U9, and ground connection; The end of magnetoelectric sensor L2 is connected to the positive pole of light-emitting diode in the optocoupler U10 by resistance R 12, the end of magnetoelectric sensor L2 also is connected to the 3rd pin of full bridge rectifier D2 simultaneously, the other end of magnetoelectric sensor L2 is connected to the negative pole of light-emitting diode in the optocoupler U10, also be connected to simultaneously the 1st pin of full bridge rectifier D2, the emitter of aerotron is connected to the 4th pin of full bridge rectifier D2 in the optocoupler U10, and ground connection; The 2nd pin of full bridge rectifier D1 and D2 is output DC source VCC respectively, is the power supply of rail portion system, and the three-terminal voltage-stabilizing chip U1 in the rail portion three-terminal voltage-stabilizing circuit is used for giving micro controller system U2 power supply separately by the voltage of its 3rd pin output "+5V "; The collecting electrode of aerotron is connected respectively to INT1 and the INT0 end of micro controller system U2 in the rail portion control circuit in optocoupler U9 and the U10; The the 3rd and the 4th pin of toggle switch S17 is connected respectively to P11 and the P10 mouth of micro controller system U2, its 1st and the 2nd pin ground connection; In radio transmitter, the collecting electrode of aerotron Q1, Q2 and Q3 is connected respectively to the 1st, the 2nd and the 3rd pin of wireless code sender J1, the collecting electrode of Q4 is connected to the 4th pin of wireless code sender J1 through resistance R 4, the collecting electrode of aerotron Q1, Q2, Q3 and Q4 is connected to power supply VCC through resistance R 1, R2, R3 and R4 respectively, and be connected to the 5th pin of wireless code sender J1, the 6th pin ground connection of wireless code sender J1, the equal ground connection of the emitter of aerotron Q1, Q2, Q3 and Q4; Between rail portion control circuit and the radio transmitter, the P00 of micro controller system U2, P01, P02 and P03 mouth pass through driving resistor R7, R8, R9 and R10 respectively, and are connected respectively to the base stage of aerotron Q1, Q2, Q3 and Q4.
The model of wireless code reader is CON7 in the vehicle-mounted part described in the utility model; Micro controller system U5,6M crystal oscillator and toggle switch S18 are arranged in the vehicle-mounted part control circuit, and the model of its micro controller system U5 is 8051; Display chip S19, LED charactron DS1, DS2, DS3 and DS4 and button S1---S16 are arranged in the display unit, and the model of its display chip S19 is HD7279; In the vehicle-mounted part communication interface circuit communication chip U4 is arranged, its model is MAX232; The model of vehicle-mounted part data radio station is CON4; Voltage transformer T1 and full bridge rectifier D3 are arranged in the vehicle-mounted partial rectification circuit; In the vehicle-mounted part three-terminal voltage-stabilizing circuit three-terminal voltage-stabilizing chip U3 is arranged, its model is MC7805T;
Its annexation is: between wireless code reader and the vehicle-mounted part control circuit, the the 1st, the 2nd, the 3rd and the 4th pin of wireless code reader is connected respectively to P00, P01, P02 and the P03 mouth of micro controller system U5 in the vehicle-mounted part control circuit, the 6th pin of wireless code reader is connected to the INT0 end of micro controller system U5, the 5th pin of wireless code reader connects "+5V " power supply, its 7th pin ground connection; Between vehicle-mounted part control circuit and the display unit, the P04 of micro controller system U3, P05, P06 and P07 are connected respectively to CLK, CS, DATA and the KEY end of display chip S19; Between vehicle-mounted part control circuit and the vehicle-mounted part communication interface circuit, the 12nd and the 11st pin of communication chip U4 is connected to RXD and the TXD end of micro controller system U5 respectively; Between vehicle-mounted part control circuit and the vehicle-mounted part data radio station, the 3rd and the 2nd pin of vehicle-mounted part data radio station is connected respectively to P12 and the P13 end of micro controller system U5, and the 4th pin of vehicle-mounted part data radio station connects "+5V " power supply, its 1st pin ground connection; The the 3rd and the 4th pin of toggle switch S18 is connected respectively to P11 and the P10 mouth of micro controller system U5, its 1st and the 2nd pin ground connection; In the vehicle-mounted partial rectification circuit, mains supply is connected to the two ends of voltage transformer T1 primary winding, and the two ends of voltage transformer T1 intensity coil are connected respectively to the 2nd and the 4th pin of full bridge rectifier D3, the 1st pin output DC source VCC of full bridge rectifier D3; In the vehicle-mounted part three-terminal voltage-stabilizing circuit, be used for power supply to vehicle-mounted part system by the voltage of the 3rd pin of three-terminal voltage-stabilizing chip U3 output "+5V ".
The model of road notch portion data radio station is CON4 in the road described in the utility model notch portion; In the road notch portion communication interface circuit communication chip U7 is arranged, its model is MAX232; Micro controller system U8,6M crystal oscillator and toggle switch S20 are arranged in the road notch portion control circuit, and the model of its micro controller system U8 is 8051; Chip for driving R14 and output relay K1, K2 and K3 are arranged in the driving circuit; Voltage transformer T2 and full bridge rectifier D4 are arranged in the partial rectification circuit of road junction; In the road notch portion three-terminal voltage-stabilizing circuit three-terminal voltage-stabilizing chip U6 is arranged, its model is MC7805T;
Its annexation is: between road notch portion data radio station and the road notch portion control circuit, the the 3rd and the 2nd pin of road notch portion data radio station is connected respectively to P12 and the P13 end of micro controller system U8, the 4th pin of road notch portion data radio station connects "+5V " power supply, its 1st pin ground connection; Between road notch portion communication interface circuit and the road notch portion control circuit, the 12nd and the 11st pin of communication chip U7 is connected to RXD and the TXD end of micro controller system U8 respectively; The the 3rd and the 4th pin of toggle switch S20 is connected respectively to P11 and the P10 mouth of micro controller system U8, its 1st and the 2nd pin ground connection; Between road notch portion control circuit and the driving circuit, the P00 of micro controller system U8, P01, P02, P03, P04, P05, P06 and P07 mouth are connected respectively to the 1st of chip for driving R14, the 2nd, the 3rd, the 4th, the 5th, the 6th, the the 7th and the 8th pin, the 18th of chip for driving R14, the the 17th and the 16th pin is connected respectively to output relay K1, one end of K2 and K3 coil, and also be connected respectively to diode pipe D5, the positive pole of D6 and D7, output relay K1, another termination direct supply VCC of K2 and K3 coil, and also be connected to diode D5 respectively, the negative pole of D6 and D7, output relay K1, the normal open switch of K2 and K3 is connected to the signal lamp show circuit respectively, electrical motor is just going back to road and electrical motor counter-rotating loop; In the partial rectification circuit of road junction, mains supply is connected to the two ends of voltage transformer T2 primary winding, and the two ends of voltage transformer T2 intensity coil are connected respectively to the 2nd and the 4th pin of full bridge rectifier D4, the 1st pin output DC source VCC of full bridge rectifier D4; In the road notch portion three-terminal voltage-stabilizing circuit, the voltage of being exported "+5V " by the 3rd pin of three-terminal voltage-stabilizing chip U6 is used for powering to road notch portion system.
Also include Direct current power source socket J4 in the vehicle-mounted part described in the utility model, when using Direct current power source socket J4, vehicle-mounted part system directly by direct supply after the voltage stabilizing of vehicle-mounted part three-terminal voltage-stabilizing circuit, be the power supply of vehicle-mounted part system.
Advantage of the present utility model is: utilize wheel to replace traditional power supply mode by the energy that magnetoelectric sensor produces, exempt from power supply, exempt from trench digging, exempt from wiring, also avoided later maintenance when having reduced cost; Equipment operation reliability height, vehicle-mounted part is received after the location information of sensor the distance that can instant playback goes out apart from road junction, the place ahead, remind road man the place ahead to take care near the road junction, and open crossing protection equipment (sound, light panalarm by data radio station, Electric gate machine etc.) sealing road junction, warning is closed after train is by the road junction sensor; The road jaws equipment can be realized unattended duty, automatically work.
Description of drawings
Fig. 1 is that the utility model is installed in the working state schematic representation on the rail;
Fig. 2 is a circuit block diagram of the present utility model;
Fig. 3 is the rail portion schematic circuit diagram;
Fig. 4 is vehicle-mounted partial circuit schematic diagram;
Fig. 5 is the display unit circuit schematic diagram;
Fig. 6 is a road junction partial circuit schematic diagram.
The specific embodiment
As Fig. 1---shown in 6, this wireless sensing type level crossing annunciator, by rail portion 1, vehicle-mounted part 2 and road notch portion 3 are formed, it is characterized in that: described rail portion 1 comprises that pulse voltage produces circuit 4, rail portion three-terminal voltage-stabilizing circuit 5, rail portion control circuit 6 and radio transmitter 7, rail portion 1 is used for when train wheel passes through magnetoelectric sensor, produce circuit 4 by pulse voltage and produce pulse voltage, one the tunnel gives the power supply of rail portion system, one the tunnel gives rail portion control circuit 6 wheel signals after light-coupled isolation, wheel signal sends to vehicle-mounted part 2 by radio transmitter 7 after rail portion control circuit 6 is handled, in addition, pulse voltage produces the pulse voltage of circuit 4 generations after 5 voltage stabilizings of rail portion three-terminal voltage-stabilizing circuit, gives the rail portion control circuit 6 power supplies separately; Vehicle-mounted part 2 comprises wireless code reader 8, vehicle-mounted part control circuit 9, display unit 10, vehicle-mounted part communication interface circuit 11, vehicle-mounted part data radio station 12, vehicle-mounted partial rectification circuit 13 and vehicle-mounted part three-terminal voltage-stabilizing circuit 14, vehicle-mounted part 2 is used for receiving wheel signal that rail portion 1 sends and after vehicle-mounted part control system 9 is handled when wireless code reader 8, the display unit 10 of leading up to is shown to train crews, vehicle-mounted part data radio station 12 is arrived by vehicle-mounted part communication interface circuit 11 in another road, and by vehicle-mounted part data radio station 12 to road notch portion 3 emission remote signals, vehicle-mounted partial rectification circuit 13 and vehicle-mounted part three-terminal voltage-stabilizing circuit 14 are used for the commercial power rectification again after the voltage stabilizing, give the power supply of vehicle-mounted part system; Road notch portion 3 comprises notch portion data radio station 15, road notch portion communication interface circuit 16, road notch portion control circuit 17, driving circuit 18, road junction partial rectification circuit 19 and road notch portion three-terminal voltage-stabilizing circuit 20, road notch portion 3 is used to hold sway notch portion data radio station 15 when receiving the remote signal of vehicle-mounted part 2, remote signal is transferred to notch portion control circuit 17 by road notch portion communication interface circuit 16, and after road notch portion control circuit 17 is handled, drive output relay output remote signal by driving circuit 18, guide sound, the start and stop of equipment such as light panalarm and Electric gate machine, road junction partial rectification circuit 19 and road notch portion three-terminal voltage-stabilizing circuit 20 are used for again after the voltage stabilizing, giving notch portion system power supply in road with the commercial power rectification; Between rail portion 1 and the vehicle-mounted part 2, be wireless telecommunications between vehicle-mounted part 2 and the road notch portion 3 and be connected.
Pulse voltage shown in Fig. 2,3 in the described rail portion 1 produces circuit 4 magnetoelectric sensor L1 and L2, full bridge rectifier D1 and D2 and optocoupler U9 and U10; Three-terminal voltage-stabilizing chip U1 is arranged in the rail portion three-terminal voltage-stabilizing circuit 5, and its model is MC7805T; Micro controller system U2,6M crystal oscillator and toggle switch S17 are arranged in the rail portion control circuit 6, and the model of its micro controller system U2 is 8051; Wireless code sender J1, driving resistor R7, R8, R9 and R10 and aerotron Q1, Q2, Q3 and Q4 are arranged in the radio transmitter 7, and the model of it is wireless code sender J1 is CON6;
Its annexation is: in pulse voltage produces circuit 4, the end of magnetoelectric sensor L1 is connected to the positive pole of light-emitting diode in the optocoupler U9 by resistance R 11, the end of magnetoelectric sensor L1 also is connected to the 3rd pin of full bridge rectifier D1 simultaneously, the other end of magnetoelectric sensor L1 is connected to the negative pole of light-emitting diode in the optocoupler U9, also be connected to simultaneously the 1st pin of full bridge rectifier D1, the emitter of aerotron is connected to the 4th pin of full bridge rectifier D1 in the optocoupler U9, and ground connection; The end of magnetoelectric sensor L2 is connected to the positive pole of light-emitting diode in the optocoupler U10 by resistance R 12, the end of magnetoelectric sensor L2 also is connected to the 3rd pin of full bridge rectifier D2 simultaneously, the other end of magnetoelectric sensor L2 is connected to the negative pole of light-emitting diode in the optocoupler U10, also be connected to simultaneously the 1st pin of full bridge rectifier D2, the emitter of aerotron is connected to the 4th pin of full bridge rectifier D2 in the optocoupler U10, and ground connection; The 2nd pin of full bridge rectifier D1 and D2 is output DC source VCC respectively, is the power supply of rail portion system, and the three-terminal voltage-stabilizing chip U1 in the rail portion three-terminal voltage-stabilizing circuit 5 is used for giving micro controller system U2 power supply separately by the voltage of its 3rd pin output "+5V "; The collecting electrode of aerotron is connected respectively to INT1 and the INT0 end of micro controller system U2 in the rail portion control circuit 6 in optocoupler U9 and the U10; The the 3rd and the 4th pin of toggle switch S17 is connected respectively to P11 and the P10 mouth of micro controller system U2, its 1st and the 2nd pin ground connection; In radio transmitter 7, the collecting electrode of aerotron Q1, Q2 and Q3 is connected respectively to the 1st, the 2nd and the 3rd pin of wireless code sender J1, the collecting electrode of Q4 is connected to the 4th pin of wireless code sender J1 through resistance R 4, the collecting electrode of aerotron Q1, Q2, Q3 and Q4 is connected to power supply VCC through resistance R 1, R2, R3 and R4 respectively, and be connected to the 5th pin of wireless code sender J1, the 6th pin ground connection of wireless code sender J1, the equal ground connection of the emitter of aerotron Q1, Q2, Q3 and Q4; Between rail portion control circuit 6 and the radio transmitter 7, the P00 of micro controller system U2, P01, P02 and P03 mouth pass through driving resistor R7, R8, R9 and R10 respectively, and are connected respectively to the base stage of aerotron Q1, Q2, Q3 and Q4.
Shown in Fig. 2,4,5, the model of wireless code reader 8 is CON7 in the described vehicle-mounted part 2; Micro controller system U5,6M crystal oscillator and toggle switch S18 are arranged in the vehicle-mounted part control circuit 9, and the model of its micro controller system U5 is 8051; Display chip S19, LED charactron DS1, DS2, DS3 and DS4 and button S1---S16 are arranged in the display unit 10, and the model of its display chip S19 is HD7279; In the vehicle-mounted part communication interface circuit 11 communication chip U4 is arranged, its model is MAX232; The model of vehicle-mounted part data radio station 12 is CON4; Voltage transformer T1 and full bridge rectifier D3 are arranged in the vehicle-mounted partial rectification circuit 13; In the vehicle-mounted part three-terminal voltage-stabilizing circuit 14 three-terminal voltage-stabilizing chip U3 is arranged, its model is MC7805T;
Its annexation is: between wireless code reader 8 and the vehicle-mounted part control circuit 9, the the 1st, the 2nd, the 3rd and the 4th pin of wireless code reader 8 is connected respectively to P00, P01, P02 and the P03 mouth of micro controller system U5 in the vehicle-mounted part control circuit 9, the 6th pin of wireless code reader 8 is connected to the INT0 end of micro controller system U5, the 5th pin of wireless code reader 8 connects "+5V " power supply, its 7th pin ground connection; Between vehicle-mounted part control circuit 9 and the display unit 10, the P04 of micro controller system U3, P05, P06 and P07 are connected respectively to CLK, CS, DATA and the KEY end of display chip S19; Between vehicle-mounted part control circuit 9 and the vehicle-mounted part communication interface circuit 11, the 12nd and the 11st pin of communication chip U4 is connected to RXD and the TXD end of micro controller system U5 respectively; Between vehicle-mounted part control circuit 9 and the vehicle-mounted part data radio station 12, the the 3rd and the 2nd pin of vehicle-mounted part data radio station 12 is connected respectively to P12 and the P13 end of micro controller system U5, the 4th pin of vehicle-mounted part data radio station 12 connects "+5V " power supply, its 1st pin ground connection; The the 3rd and the 4th pin of toggle switch S18 is connected respectively to P11 and the P10 mouth of micro controller system U5, its 1st and the 2nd pin ground connection; In the vehicle-mounted partial rectification circuit 13, mains supply is connected to the two ends of voltage transformer T1 primary winding, and the two ends of voltage transformer T1 intensity coil are connected respectively to the 2nd and the 4th pin of full bridge rectifier D3, the 1st pin output DC source VCC of full bridge rectifier D3; In the vehicle-mounted part three-terminal voltage-stabilizing circuit 14, be used for power supply to vehicle-mounted part system by the voltage of the 3rd pin of three-terminal voltage-stabilizing chip U3 output "+5V ".
Shown in Fig. 2,6, the model of road notch portion data radio station 15 is CON4 in the described road notch portion 3; In the road notch portion communication interface circuit 16 communication chip U7 is arranged, its model is MAX232; Micro controller system U8,6M crystal oscillator and toggle switch S20 are arranged in the road notch portion control circuit 17, and the model of its micro controller system U8 is 8051; Chip for driving R14 and output relay K1, K2 and K3 are arranged in the driving circuit 18; Voltage transformer T2 and full bridge rectifier D4 are arranged in the road junction partial rectification circuit 19; In the road notch portion three-terminal voltage-stabilizing circuit 20 three-terminal voltage-stabilizing chip U6 is arranged, its model is MC7805T;
Its annexation is: between road notch portion data radio station 15 and the road notch portion control circuit 17, the the 3rd and the 2nd pin of road notch portion data radio station 15 is connected respectively to P12 and the P13 end of micro controller system U8, the 4th pin of road notch portion data radio station 15 connects "+5V " power supply, its 1st pin ground connection; Between road notch portion communication interface circuit 16 and the road notch portion control circuit 17, the 12nd and the 11st pin of communication chip U7 is connected to RXD and the TXD end of micro controller system U8 respectively; The the 3rd and the 4th pin of toggle switch S20 is connected respectively to P11 and the P10 mouth of micro controller system U8, its 1st and the 2nd pin ground connection; Between road notch portion control circuit 17 and the driving circuit 18, the P00 of micro controller system U8, P01, P02, P03, P04, P05, P06 and P07 mouth are connected respectively to the 1st of chip for driving R14, the 2nd, the 3rd, the 4th, the 5th, the 6th, the the 7th and the 8th pin, the 18th of chip for driving R14, the the 17th and the 16th pin is connected respectively to output relay K1, one end of K2 and K3 coil, and also be connected respectively to diode pipe D5, the positive pole of D6 and D7, output relay K1, another termination direct supply VCC of K2 and K3 coil, and also be connected to diode D5 respectively, the negative pole of D6 and D7, output relay K1, the normal open switch of K2 and K3 is connected to the signal lamp show circuit respectively, electrical motor is just going back to road and electrical motor counter-rotating loop; In the road junction partial rectification circuit 19, mains supply is connected to the two ends of voltage transformer T2 primary winding, and the two ends of voltage transformer T2 intensity coil are connected respectively to the 2nd and the 4th pin of full bridge rectifier D4, the 1st pin output DC source VCC of full bridge rectifier D4; In the road notch portion three-terminal voltage-stabilizing circuit 20, the voltage of being exported "+5V " by the 3rd pin of three-terminal voltage-stabilizing chip U6 is used for powering to road notch portion system.
As shown in Figure 4, also include Direct current power source socket J4 in the described vehicle-mounted part 2, when using Direct current power source socket J4, vehicle-mounted part system directly by direct supply after 14 voltage stabilizings of vehicle-mounted part three-terminal voltage-stabilizing circuit, be the power supply of vehicle-mounted part system.
The principle of work of this wireless sensing type level crossing annunciator is: as shown in Figure 1, rail portion 1 vertically is installed on the train rail, and to sending wireless signal by train; Vehicle-mounted part 2 is installed in the train, when vehicle-mounted part 2 receives the wireless signal of rail portion 1 emission and it is shown to train crews during by rail portion 1, transmits to road notch portion 3 by vehicle-mounted part data radio station 12 simultaneously; Road notch portion 3 is installed in the level crossing, road notch portion 3 receives the telecommand that vehicle-mounted part 2 is sent by road notch portion data radio station 15, and after road notch portion control circuit 17 is handled, drive output relay output remote signal, the start and stop of equipment such as guide sound, light panalarm and Electric gate machine by driving circuit 18.The principle of work of this annunciator each several part circuit is: shown in Fig. 2,3, the pulse voltage that rail portion 1 produces when utilizing train wheel to pass through magnetoelectric sensor L1 and L2, give the power supply of rail portion system by full bridge rectifier D1 and D2 on the one hand, provide signal by optocoupler U9 and U10 for micro controller system U2 on the other hand, after the signal that sensor is sent is handled through micro controller system U2, drive wireless code sender J1 to vehicle-mounted part 2 emission address codes by aerotron Q1, Q2, Q3 and Q4; Shown in Fig. 2,4,5, vehicle-mounted part 2 is read the wireless signal that rail portion 1 is sent by wireless code reader 8, after micro controller system U5 processing, launch by vehicle-mounted part data radio station 12 on the one hand, be transferred to display unit 10 by the SPI interface on the other hand, display unit 10 demonstrates the distance of train to road junction, the place ahead; Shown in Fig. 2,6, road notch portion 3 receives the wireless signal that vehicle-mounted part 2 is sent by road notch portion data radio station 15, after micro controller system U8 handles, by chip for driving R14 control output relay K1, K2 and K3, by the contact control signal lamp DS5 of output relay K1, K2 and K3 and the rotating of motor M.When train from opposite side during near the road junction principle the same.
Claims (5)
1. wireless sensing type level crossing annunciator, by rail portion (1), vehicle-mounted part (2) and road notch portion (3) are formed, it is characterized in that: described rail portion (1) comprises that pulse voltage produces circuit (4), rail portion three-terminal voltage-stabilizing circuit (5), rail portion control circuit (6) and radio transmitter (7), rail portion (1) is used for when train wheel passes through magnetoelectric sensor, produce circuit (4) by pulse voltage and produce pulse voltage, one the tunnel gives the power supply of rail portion system, one the tunnel gives rail portion control circuit (6) wheel signal after light-coupled isolation, wheel signal sends to vehicle-mounted part (2) by radio transmitter (7) after rail portion control circuit (6) is handled, in addition, pulse voltage produces the pulse voltage of circuit (4) generation after rail portion three-terminal voltage-stabilizing circuit (5) voltage stabilizing, gives rail portion control circuit (6) power supply separately; Vehicle-mounted part (2) comprises wireless code reader (8), vehicle-mounted part control circuit (9), display unit (10), vehicle-mounted part communication interface circuit (11), vehicle-mounted part data radio station (12), vehicle-mounted partial rectification circuit (13) and vehicle-mounted part three-terminal voltage-stabilizing circuit (14), vehicle-mounted part (2) is used for receiving wheel signal that rail portion (1) sends and after vehicle-mounted part control system (9) is handled when wireless code reader (8), the display unit (10) of leading up to is shown to train crews, vehicle-mounted part data radio station (12) is arrived by vehicle-mounted part communication interface circuit (11) in another road, and by vehicle-mounted part data radio station (12) to road notch portion (3) emission remote signal, vehicle-mounted partial rectification circuit (13) and vehicle-mounted part three-terminal voltage-stabilizing circuit (14) are used for the commercial power rectification again after the voltage stabilizing, give the power supply of vehicle-mounted part system; Road notch portion (3) comprises notch portion data radio station (15), road notch portion communication interface circuit (16), road notch portion control circuit (17), driving circuit (18), road junction partial rectification circuit (19) and road notch portion three-terminal voltage-stabilizing circuit (20), road notch portion (3) is used to hold sway notch portion data radio station (15) when receiving the remote signal of vehicle-mounted part (2), remote signal is transferred to notch portion control circuit (17) by road notch portion communication interface circuit (16), and after road notch portion control circuit (17) is handled, drive output relay output remote signal by driving circuit (18), guide sound, the start and stop of equipment such as light panalarm and Electric gate machine, road junction partial rectification circuit (19) and road notch portion three-terminal voltage-stabilizing circuit (20) are used for again after the voltage stabilizing, giving notch portion system power supply in road with the commercial power rectification; Between rail portion (1) and the vehicle-mounted part (2), be wireless telecommunications between vehicle-mounted part (2) and the road notch portion (3) and be connected.
2. wireless sensing type according to claim 1 level crossing annunciator is characterized in that: the pulse voltage in the described rail portion (1) produces circuit (4) magnetoelectric sensor L1 and L2, full bridge rectifier D1 and D2 and optocoupler U9 and U10; Three-terminal voltage-stabilizing chip U1 is arranged in the rail portion three-terminal voltage-stabilizing circuit (5), and its model is MC7805T; Micro controller system U2,6M crystal oscillator and toggle switch S17 are arranged in the rail portion control circuit (6), and the model of its micro controller system U2 is 8051; Wireless code sender J1, driving resistor R7, R8, R9 and R10 and aerotron Q1, Q2, Q3 and Q4 are arranged in the radio transmitter (7), and the model of it is wireless code sender J1 is CON6;
Its annexation is: in pulse voltage produces circuit (4), the end of magnetoelectric sensor L1 is connected to the positive pole of light-emitting diode in the optocoupler U9 by resistance R 11, the end of magnetoelectric sensor L1 also is connected to the 3rd pin of full bridge rectifier D1 simultaneously, the other end of magnetoelectric sensor L1 is connected to the negative pole of light-emitting diode in the optocoupler U9, also be connected to simultaneously the 1st pin of full bridge rectifier D1, the emitter of aerotron is connected to the 4th pin of full bridge rectifier D1 in the optocoupler U9, and ground connection; The end of magnetoelectric sensor L2 is connected to the positive pole of light-emitting diode in the optocoupler U10 by resistance R 12, the end of magnetoelectric sensor L2 also is connected to the 3rd pin of full bridge rectifier D2 simultaneously, the other end of magnetoelectric sensor L2 is connected to the negative pole of light-emitting diode in the optocoupler U10, also be connected to simultaneously the 1st pin of full bridge rectifier D2, the emitter of aerotron is connected to the 4th pin of full bridge rectifier D2 in the optocoupler U10, and ground connection; The 2nd pin of full bridge rectifier D1 and D2 is output DC source VCC respectively, be the power supply of rail portion system, the three-terminal voltage-stabilizing chip U1 in the rail portion three-terminal voltage-stabilizing circuit (5) is used for giving micro controller system U2 power supply separately by the voltage of its 3rd pin output "+5V "; The collecting electrode of aerotron is connected respectively to INT1 and the INT0 end of the interior micro controller system U2 of rail portion control circuit (6) in optocoupler U9 and the U10; The the 3rd and the 4th pin of toggle switch S17 is connected respectively to P11 and the P10 mouth of micro controller system U2, its 1st and the 2nd pin ground connection; In radio transmitter (7), the collecting electrode of aerotron Q1, Q2 and Q3 is connected respectively to the 1st, the 2nd and the 3rd pin of wireless code sender J1, the collecting electrode of Q4 is connected to the 4th pin of wireless code sender J1 through resistance R 4, the collecting electrode of aerotron Q1, Q2, Q3 and Q4 is connected to power supply VCC through resistance R 1, R2, R3 and R4 respectively, and be connected to the 5th pin of wireless code sender J1, the 6th pin ground connection of wireless code sender J1, the equal ground connection of the emitter of aerotron Q1, Q2, Q3 and Q4; Between rail portion control circuit (6) and the radio transmitter (7), the P00 of micro controller system U2, P01, P02 and P03 mouth pass through driving resistor R7, R8, R9 and R10 respectively, and are connected respectively to the base stage of aerotron Q1, Q2, Q3 and Q4.
3. wireless sensing type according to claim 1 level crossing annunciator is characterized in that: the model of wireless code reader (8) is CON7 in the described vehicle-mounted part (2); Micro controller system U5,6M crystal oscillator and toggle switch S18 are arranged in the vehicle-mounted part control circuit (9), and the model of its micro controller system U5 is 8051; Display chip S19, LED charactron DS1, DS2, DS3 and DS4 and button S1---S16 are arranged in the display unit (10), and the model of its display chip S19 is HD7279; In the vehicle-mounted part communication interface circuit (11) communication chip U4 is arranged, its model is MAX232; The model of vehicle-mounted part data radio station (12) is CON4; Voltage transformer T1 and full bridge rectifier D3 are arranged in the vehicle-mounted partial rectification circuit (13); Three-terminal voltage-stabilizing chip U3 is arranged in the vehicle-mounted part three-terminal voltage-stabilizing circuit (14), and its model is MC7805T;
Its annexation is: between wireless code reader (8) and the vehicle-mounted part control circuit (9), the the 1st, the 2nd, the 3rd and the 4th pin of wireless code reader (8) is connected respectively to P00, P01, P02 and the P03 mouth of the interior micro controller system U5 of vehicle-mounted part control circuit (9), the 6th pin of wireless code reader (8) is connected to the INT0 end of micro controller system U5, the 5th pin of wireless code reader (8) connects "+5V " power supply, its 7th pin ground connection; Between vehicle-mounted part control circuit (9) and the display unit (10), the P04 of micro controller system U3, P05, P06 and P07 are connected respectively to CLK, CS, DATA and the KEY end of display chip S19; Between vehicle-mounted part control circuit (9) and the vehicle-mounted part communication interface circuit (11), the 12nd and the 11st pin of communication chip U4 is connected to RXD and the TXD end of micro controller system U5 respectively; Between vehicle-mounted part control circuit (9) and the vehicle-mounted part data radio station (12), the the 3rd and the 2nd pin of vehicle-mounted part data radio station (12) is connected respectively to P12 and the P13 end of micro controller system U5, the 4th pin of vehicle-mounted part data radio station (12) connects "+5V " power supply, its 1st pin ground connection; The the 3rd and the 4th pin of toggle switch S18 is connected respectively to P11 and the P10 mouth of micro controller system U5, its 1st and the 2nd pin ground connection; In the vehicle-mounted partial rectification circuit (13), mains supply is connected to the two ends of voltage transformer T1 primary winding, the two ends of voltage transformer T1 intensity coil are connected respectively to the 2nd and the 4th pin of full bridge rectifier D3, the 1st pin output DC source VCC of full bridge rectifier D3; In the vehicle-mounted part three-terminal voltage-stabilizing circuit (14), be used for power supply to vehicle-mounted part system by the voltage of the 3rd pin of three-terminal voltage-stabilizing chip U3 output "+5V ".
4. wireless sensing type according to claim 1 level crossing annunciator is characterized in that: the model of described road notch portion (3) interior road notch portion data radio station (15) is CON4; In the road notch portion communication interface circuit (16) communication chip U7 is arranged, its model is MAX232; Micro controller system U8,6M crystal oscillator and toggle switch S20 are arranged in the road notch portion control circuit (17), and the model of its micro controller system U8 is 8051; Chip for driving R14 and output relay K1, K2 and K3 are arranged in the driving circuit (18); Voltage transformer T2 and full bridge rectifier D4 are arranged in the road junction partial rectification circuit (19); Three-terminal voltage-stabilizing chip U6 is arranged in the road notch portion three-terminal voltage-stabilizing circuit (20), and its model is MC7805T;
Its annexation is: between road notch portion data radio station (15) and the road notch portion control circuit (17), the the 3rd and the 2nd pin of road notch portion data radio station (15) is connected respectively to P12 and the P13 end of micro controller system U8, the 4th pin of road notch portion data radio station (15) connects "+5V " power supply, its 1st pin ground connection; Between road notch portion communication interface circuit (16) and the road notch portion control circuit (17), the 12nd and the 11st pin of communication chip U7 is connected to RXD and the TXD end of micro controller system U8 respectively; The the 3rd and the 4th pin of toggle switch S20 is connected respectively to P11 and the P10 mouth of micro controller system U8, its 1st and the 2nd pin ground connection; Between road notch portion control circuit (17) and the driving circuit (18), the P00 of micro controller system U8, P01, P02, P03, P04, P05, P06 and P07 mouth are connected respectively to the 1st of chip for driving R14, the 2nd, the 3rd, the 4th, the 5th, the 6th, the the 7th and the 8th pin, the 18th of chip for driving R14, the the 17th and the 16th pin is connected respectively to output relay K1, one end of K2 and K3 coil, and also be connected respectively to diode pipe D5, the positive pole of D6 and D7, output relay K1, another termination direct supply VCC of K2 and K3 coil, and also be connected to diode D5 respectively, the negative pole of D6 and D7, output relay K1, the normal open switch of K2 and K3 is connected to the signal lamp show circuit respectively, electrical motor is just going back to road and electrical motor counter-rotating loop; In the road junction partial rectification circuit (19), mains supply is connected to the two ends of voltage transformer T2 primary winding, the two ends of voltage transformer T2 intensity coil are connected respectively to the 2nd and the 4th pin of full bridge rectifier D4, the 1st pin output DC source VCC of full bridge rectifier D4; In the road notch portion three-terminal voltage-stabilizing circuit (20), the voltage of being exported "+5V " by the 3rd pin of three-terminal voltage-stabilizing chip U6 is used for powering to road notch portion system.
5. according to claim 1 or 3 described wireless sensing type level crossing annunciators, it is characterized in that: also include Direct current power source socket J4 in the described vehicle-mounted part (2), when using Direct current power source socket J4, vehicle-mounted part system directly by direct supply after vehicle-mounted part three-terminal voltage-stabilizing circuit (14) voltage stabilizing, be the power supply of vehicle-mounted part system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202266670U CN201745607U (en) | 2010-06-12 | 2010-06-12 | Wireless sensing-type railroad crossing alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202266670U CN201745607U (en) | 2010-06-12 | 2010-06-12 | Wireless sensing-type railroad crossing alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201745607U true CN201745607U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202266670U Expired - Fee Related CN201745607U (en) | 2010-06-12 | 2010-06-12 | Wireless sensing-type railroad crossing alarm |
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| CN (1) | CN201745607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466589A (en) * | 2018-11-01 | 2019-03-15 | 武汉民大信息科技有限公司 | It is a kind of for detecting the wireless device and its working method of Train Approaching |
| CN114928259A (en) * | 2022-05-06 | 2022-08-19 | 深圳市晟瑞科技有限公司 | Communication interface circuit and power consumption device |
-
2010
- 2010-06-12 CN CN2010202266670U patent/CN201745607U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466589A (en) * | 2018-11-01 | 2019-03-15 | 武汉民大信息科技有限公司 | It is a kind of for detecting the wireless device and its working method of Train Approaching |
| CN114928259A (en) * | 2022-05-06 | 2022-08-19 | 深圳市晟瑞科技有限公司 | Communication interface circuit and power consumption device |
| CN114928259B (en) * | 2022-05-06 | 2023-12-29 | 深圳市晟瑞科技有限公司 | Communication interface circuit and power utilization device |
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Granted publication date: 20110216 Termination date: 20140612 |