CN101428635A - Electronic apparatus and method for controlling three phase current point switch - Google Patents
Electronic apparatus and method for controlling three phase current point switch Download PDFInfo
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- CN101428635A CN101428635A CNA200810182292XA CN200810182292A CN101428635A CN 101428635 A CN101428635 A CN 101428635A CN A200810182292X A CNA200810182292X A CN A200810182292XA CN 200810182292 A CN200810182292 A CN 200810182292A CN 101428635 A CN101428635 A CN 101428635A
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Abstract
The invention mainly relates to an automatic control system for transportation railway signals, in particular to an electronic device for controlling a three-phase alternating current point machine and the method thereof. The electronic device comprises a locking protection circuit (3), and is characterized in that the device further comprises a discriminate circuit (2) for the input power supply of a three phase operation power supply; the locking protection circuit (3), an actuating circuit overflowing and detecting circuit (5), and a point machine action driving circuit (6) is sequentially connected to the output end of the discriminate circuit for driving a three-phase alternating current point machine (8); the output end of the three-phase alternating current point machine (8) is connected with an indicating signal acquisition circuit (7); the output ends of a communication circuit (1), the power supply discriminate circuit (2), the actuating circuit overflowing and detecting circuit (5) and the output end of the indicating signal acquisition circuit (7) are connected with the input end of a microcontroller system (4); the locking protection circuit (3) and the point machine action driving circuit (6) are arranged at the output end of the microcontroller system (4); and the indicating power supply input is arranged at the input end of the indicating signal detection circuit (7). The invention adopts non-contact control technique, and a switch converting indicating circuit formed by a safe relay is replaced by an electronic circuit.
Description
Technical field:
The present invention relates generally to the communications and transportation railway signal automatic control system.
Background technology:
Along with the demand of railway transportation " at a high speed, heavy duty ", a large amount of employings the three-phase alternating current turn-out track equipment, no matter be electric interlocking or computer interlock for the control circuit of this equipment, employing all be that the logic control circuit that relay constitutes is realized.There is following problem in this relay circuit:
1, there is hidden danger in safety.
(1) relay circuit is made of breakaway-element and relay, employing be the contact control technology of relay, those skilled in the art adopt the method for envelope point of connection to be easy to change its control logic, there is very big hidden danger in safety.
(2) indication circuit that is made of relay can only be monitored the signal of a position in the identical period, promptly after track switch was carried out fixed behaviour's order, a Monitoring and Positioning was represented signal, if the normal indication circuit has signal, think that then track switch is in the position location, otherwise track switch is in four open positions; After track switch is carried out anti-behaviour's order, only monitor antiposition and represent signal, if the antiposition indication circuit has signal, think that then track switch is in the antiposition position, otherwise track switch is in four open positions.This switch location monitoring method does not under normal circumstances have safety problem, but construction or during maintenance of equipment AT STATION, engineering staff are often convenient in order to test and search fault, simultaneously all add the expression diode in position location and antiposition position, when testing experiment, as carry out decide behaviour instruction after, no matter which kind of position switch machine is in, because external circuit constitutes, and thinks that all track switch is in the position location, equally after carrying out anti-behaviour's instruction, no matter which kind of position switch machine is in, think that all track switch is in the antiposition position, represent with regard to the position that has constituted a falseness like this, actual operation is caused very large potential safety hazard.
2, maintainable poor.Relay circuit is made of breakaway-element and relay, and when breaking down, system does not have self-checking function, and experience and the simple test by technical personnel comes trouble-shooting entirely, searches fault cause and trouble-shooting difficulty.
3, poor expandability.When system need expand or transform, relay circuit needed a large amount of distributions, increased fault rate on the one hand, prolonged construction period on the other hand, influenced service efficiency.
Summary of the invention:
The objective of the invention is to avoid the deficiencies in the prior art part and a kind of electronics package and method thereof that is used to control three phase current point switch is provided.Adopt the replacement of modular electronic circuit by the three phase current point switch control indication circuit that the safety relay constitutes, the electronic module of the control three phase current point switch of a kind of safe and reliable, easy expansion, easy care is provided.
Purpose of the present invention can be by realizing by the following technical solutions: a kind of electronics package that is used to control three phase current point switch, include locking protection circuit (3), its main spy is: also include three-phase alternating current action power input power supply discriminator circuit (2), its mouth connects locking protection circuit (3), actuating circuit overcurrent and testing circuit (5), switch machine action drives circuit (6) successively to drive three phase current point switch (8); The mouth of three phase current point switch (8) connects expression signal acquisition circuit (7); The mouth of communication circuit (1), power supply discriminator circuit (2), actuating circuit overcurrent and testing circuit (5), expression signal deteching circuit (7) connects the input end of micro controller system (4); The mouth of micro controller system (4) is provided with locking protection circuit (3), switch machine action drives circuit (6); The input end of expression signal deteching circuit (7) has the input of expression power supply:
Described communication circuit (1) is finished the reception of track switch rotating operation order, the transmission of switch indication state; Described communication circuit (1) adopts CAN circuit fieldbus;
Described power supply discriminator circuit (2) is to the detection of three-phase alternating current input supply voltage, phase shortage and phase sequence;
Described locking protection circuit (3), input end are connected to micro controller system (4), cut off the switch machine action power when micro controller system (4) receives locking order or self check fault;
Described actuating circuit overcurrent and testing circuit (5) are realized the collection of switch machine action current and to the protection of actuating circuit;
Described switch machine action drives circuit (6), the forward or reverse of control three phase current point switch;
Described expression signal acquisition circuit (7) is used for the situation of real-time inspection switch machine.
The described electronics package that is used to control three phase current point switch, described power supply discriminator circuit (2) includes the input end that is connected with resistance (2-1,2-3) and voltage sensor (2-2,2-4) between AB, the BC of three phase mains, and mouth concatenation operation amplifier (2-5, the 2-6) voltage of voltage sensor (2-2,2-4) is gathered in real time and is converted to the AD lead-foot-line that inserts micro controller system (4) after the digital signal.
The described electronics package that is used to control three phase current point switch, the mouth that described switch machine action drives circuit (6) includes at micro controller system (4) is provided with isolated drive circuit (6-1), mouth at isolated drive circuit (6-1) is provided with and three phase mains difference bonded assembly source switch (K1, K2, K3) and change-over swith (K4, K5, K6, K7), wherein change-over swith (K4, K5) is electrically connected with source switch (K1), and change-over swith (K6, K7) is electrically connected with source switch (K2); Source switch (K1, K2) is electrically connected with three phase current point switch (8) input end (X5, X3, X2, X4, X1) respectively by change-over swith (K4, K5, K6, K7), source switch (K3).
The described electronics package that is used to control three phase current point switch, the mouth that described expression signal acquisition circuit (7) includes indication transformer (7-3) is respectively equipped with resistance (7-4), switch (K13), and switch (K13) is connected in three phase current point switch (8) input end (X1); The mouth of resistance (7-4) connects switch (K11) and switch (K12); Switch (K11) is electrically connected with switch (K14) polyphone and with three phase current point switch (8) input end (X2); The mouth of switch (K11) connects normal indication testing circuit (7-5), and is electrically connected with three phase current point switch (8) input end (X4); Switch (K12) is electrically connected with switch (K15) polyphone and with three phase current point switch (8) input end (X3); The mouth of switch (K12) connects antiposition and represents testing circuit (7-6), and is electrically connected with three phase current point switch (8) input end (X5); Normal indication testing circuit (7-5), antiposition represent that the mouth of testing circuit (7-6) is converted to the MCU pin that inserts micro controller system (4) after the digital signal.
Described switch is an electronic switch.
A kind of method that is used to control the electronics package of three phase current point switch is characterized in that described controlled step is:
(1). dead work: the initial work of carrying out step 102 system after step 101 system powers on and starts working; Step 103 is carried out the self check of system, comprise that scrutiny program district and data field be whether normal, whether Primary Component and switch normal, if self check is correct, step 104 judges whether self-detection result is normal, if the self check mistake then enters step 105 and makes the output of device guiding secure side, promptly start locking protection circuit (3), cut off three-phase alternating-current supply, disconnect switch machine action drives circuit (6), and the position of track switch is represented to be set to four open state;
(2) if self check is correct, then enter step 106, whether judge has order to produce, if do not have, then to enter step 107, to carry out switch indication acquisition of signal and judgement in the communication circuit (1);
(3) judge whether to show signal surely, enter step 107,, judge to have or not anti-table signal, enter step 109,, show that then track switch is a normal indication, enter step 112, otherwise track switch is four to open, and enters step 111 if do not have if having;
(4) do not show signal surely if step 107 is judged, then to enter step 108, to judge again to have or not anti-table signal,, to show that then track switch is that antiposition is represented, to enter step 110, otherwise track switch is four to open state, enters step 111 if having;
(5) if step 106 is judged order is arranged, then enter step 120, judge whether it is to decide behaviour's order, if fixed behaviour's order, then enter step 121, continue to judge three phase mains whether phase shortage or phase sequence mal, if the three phase mains mal, then enter step 107, represent the collection and the judgement of signal; If correct, then enter step 122, carry out the operation of track switch location; Continue to judge whether the track switch positioning action finishes, and enters step 123 then,, then change step 103 over to if finish; If do not finish, do not enter step 124 again, judge whether course of action is overtime, if do not have overtimely, proceed to operate, otherwise the tenth skill process changes step 103 over to.
(6) if it is not to decide behaviour's order that step 120 is judged, then enter step 130, judge whether to be anti-behaviour's order; If it is not anti-behaviour's order that step 130 is judged, then change step 107 over to, represent the collection and the judgement of signal; If anti-behaviour's order, then enter step 131 and continue to judge three phase mains whether phase shortage or phase sequence mal, if the three phase mains mal then enters step 107, represent the collection and the judgement of signal; If correct, then enter step 132, carry out the operation of track switch antiposition; Continue then to judge whether the operation of track switch antiposition finishes, and enters step 133, if finish, then changes step 103 over to; If do not finish, do not enter step 134 again, judge whether course of action is overtime, if do not have overtimely, proceed to operate, otherwise the tenth skill process changes step 103 over to.
Communication circuit adopts the fieldbus mode, receives interlocking main frame track switch action command, returns the switch indication status information to the interlocking main frame.
Beneficial effect of the present invention: the present invention adopts contact pointless control technology, modular structure, with the indication circuit of electronic circuit for the control three phase current point switch conversion that constitutes by safety type relay, those skilled in the art adopt conventional means can't change its existing logical relation, eliminated the accident potential that constitutes owing to the envelope point of connection fully, safety is greatly enhanced.And can carry out bidirectional safe detection in real time and analysis to the location of track switch, the expression of antiposition, safety is greatly enhanced.Device adopts the modular design thinking, has self-checking function, utilizes the network platform to make up, and the composition system is convenient, and trouble-shooting is quick, and maintainability and extensibility are strong.
Description of drawings:
Fig. 1 is the block scheme of the electronics package of control three phase current point switch of the present invention;
Fig. 2 is the scheme drawing of the three-phase alternating-current supply discriminator circuit 2 of apparatus of the present invention;
Fig. 3 is the scheme drawing of the three phase current point switch action drives circuit 6 of apparatus of the present invention;
Fig. 4 is the scheme drawing that the three phase current point switch of apparatus of the present invention is represented signal acquisition circuit 7;
Fig. 5 is the program flow diagram of apparatus of the present invention.
The specific embodiment:
Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing:
Embodiment 1, see Fig. 1, a kind of electronics package that is used to control three phase current point switch, include locking protection circuit 3, also include three-phase alternating current action power input power supply discriminator circuit 2, its mouth connects locking protection circuit 3, actuating circuit overcurrent and testing circuit 5, switch machine action drives circuit 6 successively to drive three phase current point switch 8; The mouth of three phase current point switch 8 connects expression signal acquisition circuit 7; The mouth of communication circuit 1, power supply discriminator circuit 2, actuating circuit overcurrent and testing circuit 5, expression signal deteching circuit 7 connects the input end of micro controller system 4; The mouth of micro controller system 4 is provided with locking protection circuit 3, switch machine action drives circuit 6; The input end of expression signal deteching circuit 7 has the input of expression power supply:
Described communication circuit 1 is finished the reception of track switch rotating operation order, the transmission of switch indication state; Described communication circuit 1 adopts CAN circuit fieldbus;
The detection of described power supply discriminator circuit 2 pairs of three-phase alternating current input supply voltages, the phase failure and phase sequences;
Described locking protection circuit 3, input end is connected to micro controller system 4, cuts off the switch machine action power when micro controller system 4 receives locking order or self check fault;
Described actuating circuit overcurrent and testing circuit 5 realized the collection of switch machine action currents and to the protection of actuating circuit;
Described switch machine action drives circuit 6, the forward or reverse of control three phase current point switch;
Described expression signal acquisition circuit 7 is used for the situation of real-time inspection switch machine.
(1). dead work: the initial work of carrying out step 102 system after step 101 system powers on and starts working; Step 103 is carried out the self check of system, comprise that scrutiny program district and data field be whether normal, whether Primary Component and switch normal, if self check is correct, step 104 judges whether self-detection result is normal, if self check mistake, then enter step 105 and make the output of device guiding secure side, promptly disconnect locking protection circuit (3) and switch machine action drives circuit (6), and the position of track switch is represented to be set to four open state;
(2) if self check is correct, then enter step 106, whether judge has order to produce, if do not have, then to enter step 107, to carry out switch indication acquisition of signal and judgement in the communication circuit (1);
(3) judge whether to show signal surely, enter step 107,, judge to have or not anti-table signal, enter step 109,, show that then track switch is a normal indication, enter step 112, otherwise track switch is four to open, and enters step 111 if do not have if having;
(4) do not show signal surely if step 107 is judged, then to enter step 108, to judge again to have or not anti-table signal,, to show that then track switch is that antiposition is represented, to enter step 110, otherwise track switch is four to open state, enters step 111 if having;
(5) if step 106 is judged order is arranged, then enter step 120, judge whether it is to decide behaviour's order, if fixed behaviour's order, then enter step 121, whether the phase failure or phase sequence be correct otherwise continue to judge three phase mains, if the three phase mains mal, then enter step 107, represent the collection and the judgement of signal; If correct, then enter step 122, carry out the operation of track switch location; Continue to judge whether the track switch positioning action finishes, and enters step 123 then,, then change step 103 over to if finish; If do not finish, do not enter step 124 again, judge whether course of action is overtime, if do not have overtimely, proceed to operate, otherwise the tenth skill process changes step 103 over to.
(6) if it is not to decide behaviour's order that step 120 is judged, then enter step 130, judge whether to be anti-behaviour's order; If it is not anti-behaviour's order that step 130 is judged, then change step 107 over to, represent the collection and the judgement of signal; If anti-behaviour's order, then enter step 131 and continue to judge the three phase mains whether phase failure or phase sequence mal, if the three phase mains mal then enters step 107, represent the collection and the judgement of signal; If correct, then enter step 132, carry out the operation of track switch antiposition; Continue then to judge whether the operation of track switch antiposition finishes, and enters step 133, if finish, then changes step 103 over to; If do not finish, do not enter step 134 again, judge whether course of action is overtime, if do not have overtimely, proceed to operate, otherwise the tenth skill process changes step 103 over to.
Claims (6)
1. electronics package that is used to control three phase current point switch, include locking protection circuit (3), it is characterized in that: also include three-phase alternating current action power input power supply discriminator circuit (2), its mouth connects locking protection circuit (3), actuating circuit overcurrent and testing circuit (5), switch machine action drives circuit (6) successively to drive three phase current point switch (8); The mouth of three phase current point switch (8) connects expression signal acquisition circuit (7); The mouth of communication circuit (1), power supply discriminator circuit (2), actuating circuit overcurrent and testing circuit (5), expression signal deteching circuit (7) connects the input end of micro controller system (4); The mouth of micro controller system (4) is provided with locking protection circuit (3), switch machine action drives circuit (6); The input end of expression signal deteching circuit (7) has the input of expression power supply:
Described communication circuit (1) is finished the reception of track switch rotating operation order, the transmission of switch indication state;
Described power supply discriminator circuit (2) is to the detection of three-phase input supply voltage, the phase failure and phase sequence;
Described locking protection circuit (3), input end are connected to micro controller system (4), cut off the switch machine action power when micro controller system (4) receives locking order or self check fault;
Described actuating circuit overcurrent and testing circuit (5) are realized the collection of three phase current point switch action current and to the protection of actuating circuit;
Described three phase current point switch action drives circuit (6), the forward or reverse of control three phase current point switch;
Described expression signal acquisition circuit (7) is used for the situation of real-time inspection switch machine.
2. the electronics package that is used to control three phase current point switch as claimed in claim 1, it is characterized in that described power supply discriminator circuit (2) includes the input end that is connected with resistance (2-1,2-3) and voltage sensor (2-2,2-4) between AB, the BC of three phase mains, mouth concatenation operation amplifier (2-5, the 2-6) voltage of voltage sensor (2-2,2-4) is gathered in real time and is converted to the AD lead-foot-line that inserts micro controller system (4) after the digital signal.
3. the electronics package that is used to control three phase current point switch as claimed in claim 1, it is characterized in that the mouth that described switch machine action drives circuit (6) includes at micro controller system (4) is provided with isolated drive circuit (6-1), mouth at isolated drive circuit (6-1) is provided with and three phase mains difference bonded assembly source switch (K1, K2, K3) and change-over swith (K4, K5, K6, K7), wherein change-over swith (K4, K5) is electrically connected with source switch (K1), and change-over swith (K6, K7) is electrically connected with source switch (K2); Source switch (K1, K2) is electrically connected with three phase current point switch (8) input end (X5, X3, X2, X4, X1) respectively by change-over swith (K4, K5, K6, K7), source switch (K3).
4. the electronics package that is used to control three phase current point switch as claimed in claim 1, it is characterized in that the mouth that described expression signal acquisition circuit (7) includes indication transformer (7-3) is respectively equipped with resistance (7-4), switch (K13), switch (K13) is connected in three phase current point switch (8) input end (X1); The mouth of resistance (7-4) connects switch (K11) and switch (K12); Switch (K11) is electrically connected with switch (K14) polyphone and with three phase current point switch (8) input end (X2); The mouth of switch (K11) connects normal indication testing circuit (7-5), and is electrically connected with three phase current point switch (8) input end (X4); Switch (K12) is electrically connected with switch (K15) polyphone and with three phase current point switch (8) input end (X3); The mouth of switch (K12) connects antiposition and represents testing circuit (7-6), and is electrically connected with three phase current point switch (8) input end (X5); Normal indication testing circuit (7-5), antiposition represent that the mouth of testing circuit (7-6) is converted to the MCU pin that inserts micro controller system (4) after the digital signal.
5. as the described electronics package that is used to control three phase current point switch of claim 1 to 5, it is characterized in that described switch is an electronic switch.
6. method that is used to control the electronics package of three phase current point switch is characterized in that described controlled step is:
(1). dead work: the initial work of carrying out step 102 system after step 101 system powers on and starts working; Step 103 is carried out the self check of system, comprise that scrutiny program district and data field be whether normal, whether Primary Component and switch normal, if self check is correct, step 104 judges whether self-detection result is normal, if the self check mistake then enters step 105 and makes the output of device guiding secure side, promptly start locking protection circuit (3), cut off three-phase alternating-current supply, disconnect switch machine action drives circuit (6), and the position of track switch is represented to be set to four open state;
(2) if self check is correct, then enter step 106, whether judge has order to produce, if do not have, then to enter step 107, to carry out switch indication acquisition of signal and judgement in the communication circuit (1);
(3) judge whether to show signal surely, enter step 107,, judge to have or not anti-table signal, enter step 109,, show that then track switch is a normal indication, enter step 112, otherwise track switch enters step 111 for being four to open shape if do not have if having;
(4) do not show signal surely if step 107 is judged, then to enter step 108, to judge again to have or not anti-table signal,, to show that then track switch is that antiposition is represented, to enter step 110, otherwise track switch is four to open shape, enters step 111 if having;
(5) if step 106 is judged order is arranged, then enter step 120, judge whether it is to decide behaviour's order, if fixed behaviour's order, then enter step 121, continue to judge the three phase mains whether phase failure or phase sequence mal, if the three phase mains mal, then enter step 107, represent the collection and the judgement of signal; If correct, then enter step 122, carry out the operation of track switch location; Continue to judge whether the track switch positioning action finishes, and enters step 123 then,, then change step 103 over to if finish; If do not finish, do not enter step 124 again, judge whether course of action is overtime, if do not have overtimely, proceed to operate, otherwise the tenth skill process changes step 103 over to.
(6) if it is not to decide behaviour's order that step 120 is judged, then enter step 130, judge whether to be anti-behaviour's order; If it is not anti-behaviour's order that step 130 is judged, then change step 107 over to, represent the collection and the judgement of signal; If anti-behaviour's order, then enter step 131 and continue to judge the three phase mains whether phase failure or phase sequence mal, if three phase mains mal then enter step 107 is represented the collection and the judgement of signal; If correct, then enter step 132, carry out the operation of track switch antiposition; Continue then to judge whether the operation of track switch antiposition finishes, and enters step 133, if finish, then changes step 103 over to; If do not finish, do not enter step 134 again, judge whether course of action is overtime, if do not have overtimely, proceed to operate, otherwise the tenth skill process changes step 103 over to.
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| CN200810182292XA CN101428635B (en) | 2008-11-22 | 2008-11-22 | Electronic apparatus and method for controlling three phase current point switch |
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| CN200810182292XA CN101428635B (en) | 2008-11-22 | 2008-11-22 | Electronic apparatus and method for controlling three phase current point switch |
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| CN101428635A true CN101428635A (en) | 2009-05-13 |
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| CN102967794A (en) * | 2012-11-27 | 2013-03-13 | 中国北车集团大连机车车辆有限公司 | Default phase detection device for three-phase sinusoidal alternating current |
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| CN102982719A (en) * | 2012-12-10 | 2013-03-20 | 济南重成自动化技术有限公司 | Training device for turnout control of S700K-type switch machine |
| CN103786750A (en) * | 2014-03-07 | 2014-05-14 | 兰州交通大学 | Device and method for railway heavy type turnout multi-point-switch synchronous traction and control |
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