A turnout control circuit for realizing separation of control display circuit and drive circuit

Abstract

A turnout control circuit that realizes separation of a control and display circuit and a drive circuit, characterized in that it comprises: a control circuit (1), a display circuit (2), a drive circuit (3), an interlocking operation platform unit (4) and a switch unit (5); wherein the control circuit (1) comprises: a relay control circuit (101) and an electronic unit (102); the drive circuit (3) comprises: a drive switch (301) and an electronic unit switch group (302); the interlocking operation platform unit (4) is electromechanically connected to the switch unit (5) via the display circuit (2); the display circuit (2) obtains information of the switch unit (5), and provides the state information of the switch unit (5) to the interlocking operation platform unit (4) for display. The present invention realizes separation of control, display circuits and drive circuits, and prevents the drive voltage from affecting the display circuit. The present invention saves the number of indoor equipment and the number of cables from indoor to outdoor turnouts.

Description

Technical Field

[0001] The invention relates to a turnout control circuit, in particular to a turnout control circuit which realizes separation of a control display circuit and a drive circuit. Background Art

[0002] At present, domestic AC switch machines generally use 5-wire turnout control circuits, and DC switch machines generally use 4-wire turnout control circuits. Each switch machine has a corresponding set of combinations in the room to complete motor operation, status indication, and fault protection functions. The AC switch machine is connected to the outdoor switch machine through 5 cables, and the turnout indication information is returned to the signal room through the shared 5 cables; the DC switch machine is connected to the outdoor switch machine through 4 cables, and the turnout indication information is returned to the signal room through the shared 4 cables. With the development of domestic railways, multi-machine traction turnouts have been widely used in speed-up sections, passenger dedicated lines and high-speed railways. Since multiple switch machines are used for traction conversion, multiple sets of combinations need to be set up in the machine room for control, and multiple cables are required to be connected indoors and outdoors for transmission of power and control and indication information. The increase in the number of equipment not only reduces the reliability of the system, but also increases the maintenance workload and engineering construction costs. Summary of the invention

[0003] The object of the present invention is to provide a turnout control circuit which can reduce maintenance workload and engineering construction cost, improve system reliability and realize separation of control display circuit and drive circuit.

[0004] To solve the above problems, the object of the present invention is achieved as follows: The present invention relates to a turnout control circuit that realizes the separation of a control indication circuit and a drive circuit, and is characterized in that it comprises: a control circuit, an indication circuit, a drive circuit, an interlocking operation platform unit and a switch unit; the control circuit comprises a relay control circuit and an electronic unit, the drive circuit comprises a drive switch and an electronic unit switch group, the interlocking operation platform unit is electromechanically connected to the switch unit through the indication circuit, the indication circuit obtains information of the switch unit, and provides the state information of the switch unit to the interlocking operation platform unit and displays it; the interlocking operation platform unit is electrically connected to the relay control circuit of the control circuit through an interface, an operation command is sent to the relay control circuit through the interface, the relay control circuit of the control circuit is electrically connected to the electronic unit to obtain the operation command, the drive switch of the drive circuit is electrically connected through the relay control circuit, the electronic unit is electrically connected to the electronic unit switch group through the electronic unit, the drive switch and the electronic unit switch group together control the switch machine operation in the switch unit, and outputs the operation information through the indication circuit.

[0005] The electronic unit switch group includes multiple groups of electronic switches, and the switch group also includes multiple groups of switch machines. Each switch of the multiple groups of electronic switches is electrically connected to one of the multiple groups of switch machines, and each switch of the multiple groups of electronic switches is electrically connected to one of the interfaces of the drive switch.

[0006] The electronic unit includes a data processing unit, a first snap-action switch, a second snap-action switch, a first buffer switch, a second buffer switch, a wireless network, and a switch machine working current sensing unit. The data processing unit is electrically connected to the switch machine control end through the first snap-action switch, the second snap-action switch, the first buffer switch, and the second buffer switch to control the switch machine of the switch machine to start forward or reverse rotation; the data processing unit simultaneously obtains the working current of the switch machine through the switch machine working current sensing unit; the data processing unit is simultaneously connected to the wireless network radio to control the electronic switch; and the working current of the switch machine is obtained through the switch machine working current sensing unit.

[0007] The indicating circuit includes a positioning indicating circuit and an inverting indicating circuit; the positioning indicating circuit includes: DBJ1-4, 2DQJ132-131, 1DQJ rear contacts, 2DQJ112-111, traction point 1-n switch machine rib contacts 31-32, 33-34, 13-14, diode D1, resistor R, indicating transformer secondary side, capacitor C constitute the indicating circuit, when the current direction is DBJ 1-4, diode D1 is turned on, DBJ is sucked up, when the current direction is DBJ 4-1, the diode D1 is disconnected, and the capacitor C discharges to keep DBJ sucked up; the reverse position indicating circuit includes: FBJ1-4, 2DQJ133-131, 1DQJ rear contact, 2DQJ113-111, traction point 1-n switch machine rib contact 21-22, 23-24, 43-44, diode D1, resistor R, the secondary side of the indicating transformer, and capacitor C form the indicating circuit. When the current direction is FBJ 1-4, the diode D1 is turned on and FBJ is sucked up. When the current direction is FBJ 4-1, the diode D1 is disconnected, and the capacitor C discharges to keep FBJ sucked up.

[0008] The driving circuit 3 has two forms, one is a 4-wire + 3-wire AC turnout control circuit, and the other is a 4-wire + 2-wire AC turnout control circuit.

[0009] The 4-wire + 3-wire AC turnout control circuit control is controlled by changing the phase sequence of any two phases of the three-phase AC motor, changing the direction of the motor, and then controlling the switch machine to switch to different directions to achieve the fixed and reverse position of the turnout. When the interlocking system operates the turnout, 1DQJF is sucked up, and the three-phase power supply AC380V supplies power to each traction point of the control turnout through the front contact of 1DQJF. The electronic unit determines whether the interlocking system is a positioning operation or a reverse position operation. When the positioning operation is performed, the electronic unit closes the quick-acting switch KA1 and the slow-acting switch KA2, and the switch machine moves in the positioning direction. When the switch machine is moved into place, the electronic unit disconnects KA1 and KA2, and the switch machine stops; when the reverse position operation is performed, the electronic unit closes the quick-acting switch KB1 and the slow-acting switch KB2, and the switch machine moves in the reverse position direction. When the switch machine is moved into place, the electronic unit disconnects KB1 and KB2, and the switch machine stops.

[0010] The further described 4-wire + 3-wire AC turnout control process is through the following three processes:

[0011] 1) The interlocking system issues a positioning operation command, DCJ is attracted, the 3-4 coil of 1DQJ passes through the front contact of the DCJ relay, 141-143 of 2DQJ, the front contacts of SJ and YCJ are energized, 1DQJ is attracted, the front contact of 1DQJ is connected, and the 1DQJF relay is attracted;

[0012] 2) The 3-4 coil of 2DQJ is energized through the front contacts of 1DQJ and DCJ relays, and the pole is turned to close the positioning contact;

[0013] 3) The reverse contact of 2DQJ cuts off the 3-4 coil circuit of 1DQJ to prepare for the next operation. KZ is connected to KF through 1DQJ's 1-2 coil, 1DQJ's front contact, 2DQJ's positioning contact, switch machine rib contact 41-42, electronic unit, 1DQJF's front contact, and 2DQJ's positioning contact. 1DQJ continues to be sucked up, and the electronic unit is powered on. During this period, the reverse contact of 2DQJ is disconnected to KZ and connected to KF. There is no electricity in 1DQJ's 3-4 coil and 1-2 coil. 1DQJ relies on its own slow release characteristics to keep sucking up.

[0014] The control circuit is a 4-wire + 2-wire DC turnout control process is given by the following three processes:

[0015] 1) The interlocking system issues a positioning operation command, DCJ is attracted, the 3-4 coil of 1DQJ passes through the front contact of the DCJ relay, 141-143 of 2DQJ, the front contacts of SJ and YCJ are energized, 1DQJ is attracted, the front contact of 1DQJ is connected, and the 1DQJF relay is attracted;

[0016] 2) The 3-4 coil of 2DQJ is energized through the front contacts of 1DQJ and DCJ relays, and the pole is turned to close the positioning contact;

[0017] 3) The reverse contact of 2DQJ cuts off the 3-4 coil circuit of 1DQJ to prepare for the next operation; KZ is connected to KF through 1DQJ's 1-2 coil, 1DQJ's front contact, 2DQJ's positioning contact, switch machine rib contact 41-42, electronic unit, 1DQJF's front contact, and 2DQJ's positioning contact. 1DQJ continues to be sucked up, and the electronic unit is powered on. During this period, the reverse contact of 2DQJ is disconnected to KZ and connected to KF. There is no electricity in 1DQJ's 3-4 coil and 1-2 coil, and 1DQJ relies on itself to release slowly. The characteristics are kept sucked up; by switching the power supply of different windings of the DC motor, the direction of the motor can be changed, and then the switch machine can be controlled to switch to different directions, so as to realize the fixed and reverse position movement of the turnout. When the interlocking system operates the turnout, 1DQJF is sucked up, and the DC power supply DC220V supplies power to each traction point of the control turnout through the front contact of 1DQJF. The electronic unit determines whether the interlocking system is a positioning operation or a reverse position operation. When the positioning operation is performed, the electronic unit closes the quick-acting switch KA1 and the slow-acting switch KA2, and the switch machine moves in the positioning direction. When the switch machine is pulled into place, the electronic unit disconnects KA1 and KA2, and the switch machine stops. When the reverse position operation is performed, the electronic unit closes the quick-acting switch KB1 and the slow-acting switch KB2, and the switch machine moves in the reverse position direction. When the switch machine is pulled into place, the electronic unit disconnects KB1 and KB2, and the switch machine stops.

[0018] The advantages of the present invention are:

[0019] The present invention realizes the separation of control and indication circuits from drive circuits, and prevents the driving voltage from affecting the indication circuit. The present invention realizes the control of all switch machines on a group of turnouts through drive lines (3 for AC switch machines and 2 for DC switch machines) and 4 control and indication lines, and returns to the turnout indication state after the action is completed, avoiding the disadvantage that a group of control circuits and switch machine drive circuits in a 5-wire track control circuit (AC switch machine control circuit) and a 4-wire track control circuit (DC switch machine control circuit) can only control one switch machine, saving the number of indoor equipment and the number of cables from indoor to outdoor turnouts.

[0020] The present invention will be further described below in conjunction with the accompanying drawings of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram showing the principle of the turnout control circuit;

[0022] Figure 2 It is the internal circuit diagram of the control electronic unit;

[0023] Figure 3 It is a diagram of the electrical connection relationship between the control circuit, the drive circuit, and the display circuit;

[0024] Figure 4 It is a 4-wire + 3-wire AC turnout control circuit and switch machine drive circuit;

[0025] Figure 5 It is a 4-wire + 2-wire DC turnout control circuit and switch machine drive circuit;

[0026] Figure 6 It is the circuit timing diagram.

[0027] In the figure: 1. control circuit; 101. relay control circuit; 102. electronic unit; 1020. data processing unit; 1021. first snap-action switch; 1022. second snap-action switch; 1023. first buffer switch; 1024. second buffer switch; 1025. wireless network; 1026. switch machine working current sensing unit; 2. indication circuit; 201. positioning indication circuit; 202. reverse position indication circuit; 3. drive circuit; 301. drive switch; 302. electronic unit switch group; 4. interlocking operation platform unit; 5. switch machine group. DETAILED DESCRIPTION

[0028] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1 As shown, the present invention relates to a turnout control circuit that realizes separation of a control indication circuit and a drive circuit, and is characterized in that: it comprises: a control circuit 1, an indication circuit 2, a drive circuit 3, an interlocking operation platform unit 4 and a switch unit 5; wherein, the control circuit 1 comprises: a relay control circuit 101 and an electronic unit 102, the drive circuit 3 comprises a drive switch 301, an electronic unit switch group 302, the interlocking operation platform unit 4 is electromechanically connected to the switch unit 5 through the indication circuit 2, the indication circuit 2 obtains information of the switch unit 5, provides the status information of the switch unit 5 to the interlocking operation platform unit 4 and Display; the interlocking operation platform unit 4 is electrically connected to the relay control circuit 101 of the control circuit 1 through an interface, and an operation command is sent to the relay control circuit 101 through the interface. The relay control circuit 101 of the control circuit 1 is electrically connected to the electronic unit 102 to obtain the operation command, and is electrically connected to the drive switch 301 of the drive circuit 3 through the relay control circuit 101, and is electrically connected to the electronic unit switch group 302 through the electronic unit 102. The drive switch 301 and the electronic unit switch group 302 together control the switch machine operation in the switch machine group 5, and output the operation information through the display circuit 2.

[0030] The electronic unit switch group 302 includes multiple groups of electronic switches (A, B, C, ... N), and the switch group 5 also includes multiple groups of switch machines (A1, B2, C2, ... N). Each switch of the multiple groups of electronic switches is electrically connected to one of the multiple groups of switch machines, and each switch of the multiple groups of electronic switches is electrically connected to one of the interfaces of the drive switch 301.

[0031] like Figure 2 As shown, the electronic unit 102 includes a data processing unit 1020, a first snap-action switch 1021, a second snap-action switch 1022, a first buffer switch 1023, a second buffer switch 1024, a wireless network 1025, and a switch machine working current sensor unit 1026. The data processing unit 1020 is electrically connected to the control end of the switch machine unit 5 through the first snap-action switch 1021, the second snap-action switch 1022, the first buffer switch 1023, and the second buffer switch 1024 to control the switch machine of the switch machine unit 5 to start forward or reverse rotation; the data processing unit 1020 simultaneously obtains the working current of the switch machine through the switch machine working current sensor unit 1026; the data processing unit 1020 is simultaneously connected to the wireless network 1025 by radio to control the electronic switch and obtain the working current of the switch machine through the switch machine working current sensor unit 1026.

[0032] like Figure 3 As shown, the representation circuit 2 includes a positioning representation circuit 201 and an inversion representation circuit 202. Further, the positioning representation circuit 201 includes: ( Figure 3 The left side of the leftmost dotted line) DBJ1-4, 2DQJ132-131, 1DQJ rear contacts, 2DQJ112-111, traction points 1-n switch machine rib contacts 31-32, 33-34, 13-14, diode D1, resistor R, the secondary side of the transformer, and capacitor C form a circuit. When the current direction is DBJ 1-4, diode D1 is turned on and DBJ is sucked up. When the current direction is DBJ 4-1, diode D1 is disconnected and capacitor C discharges to keep DBJ sucked up.

[0033] The reverse position indicating circuit 202 includes: FBJ1-4, 2DQJ133-131, 1DQJ rear contacts, 2DQJ113-111, traction point 1-n switch machine rib contacts 21-22, 23-24, 43-44, diode D1, resistor R, the secondary side of the indicating transformer, and capacitor C to form the indicating circuit. When the current direction is FBJ 1-4, the diode D1 is turned on and FBJ is sucked up. When the current direction is FBJ 4-1, the diode D1 is turned off and the capacitor C is discharged to keep FBJ sucked up.

[0034] like Figure 4 and Figure 5 As shown, the driving circuit 3 has two forms, one is a 4-wire + 3-wire AC turnout control circuit, and the other is a 4-wire + 2-wire AC turnout control circuit.

[0035] For the 4-wire + 3-wire AC turnout control circuit control process reference Figure 4 : By changing the phase sequence of any two phases of the three-phase AC motor, the direction of the motor can be changed, and then the switch machine can be controlled to switch to different directions, realizing the fixed and reverse position of the turnout.

[0036] like Figure 3 As shown, when the interlocking system operates the turnout, 1DQJF is sucked up, and the three-phase power supply AC380V supplies power to each traction point of the control turnout through the front contact of 1DQJF. The electronic unit 102 determines whether the interlocking system is in positioning operation or reverse operation. When in positioning operation, the electronic unit 102 closes the quick-acting switch KA1 and the slow-acting switch KA2, and the switch machine moves in the positioning direction. When the switch machine is moved to the right position, the electronic unit 102 disconnects KA1 and KA2, and the switch machine stops. When in reverse operation, the electronic unit 102 closes the quick-acting switch KB1 and the slow-acting switch KB2, and the switch machine moves in the reverse direction. When the switch machine is moved to the right position, the electronic unit disconnects KB1 and KB2, and the switch machine stops. See the timing of the drive circuit Figure 6 .

[0037] like Figure 4 As shown, the 4-wire + 3-wire AC turnout control process is three steps:

[0038] 1) The interlocking system issues a positioning operation command, DCJ is attracted, the 3-4 coil of 1DQJ passes through the front contact of the DCJ relay, 141-143 of 2DQJ, the front contacts of SJ and YCJ are energized, 1DQJ is attracted, the front contact of 1DQJ is connected, and the 1DQJF relay is attracted.

[0039] 2) The 3-4 coil of 2DQJ is energized through the front contacts of 1DQJ and DCJ relays, and the poles are turned to close the positioning contacts.

[0040] 3) The reverse contact of 2DQJ cuts off the 3-4 coil circuit of 1DQJ to prepare for the next operation. KZ is connected to KF through 1DQJ's 1-2 coil, 1DQJ's front contact, 2DQJ's positioning contact, switch machine rib contacts 41-42, electronic unit 102, 1DQJF's front contact, and 2DQJ's positioning contact. 1DQJ continues to be attracted, and the electronic unit 102 is powered on. During this period, 2DQJ's reverse contact is disconnected to KZ and connected to KF. 1DQJ's 3-4 coil and 1-2 coil have no electricity, and 1DQJ relies on its own slow-release characteristics to remain attracted. See the control circuit timing diagram. Figure 6 .

[0041] like Figure 5 As shown: the control circuit is a 4-wire + 2-wire DC turnout control circuit. Taking positioning operation as an example, the starting circuit is as follows Figure 3 As shown, the startup process is:

[0042] 1) The interlocking system issues a positioning operation command, DCJ is attracted, the 3-4 coil of 1DQJ passes through the front contact of the DCJ relay, 141-143 of 2DQJ, the front contacts of SJ and YCJ are energized, 1DQJ is attracted, the front contact of 1DQJ is connected, and the 1DQJF relay is attracted (see Figure 3 ).

[0043] 2) The 3-4 coil of 2DQJ is energized through the front contacts of 1DQJ and DCJ relays, and the poles are turned to close the positioning contacts.

[0044] 3) The reverse contact of 2DQJ cuts off the 3-4 coil circuit of 1DQJ to prepare for the next operation. KZ is connected to KF through 1DQJ's 1-2 coil, 1DQJ's front contact, 2DQJ's positioning contact, switch machine rib contact 41-42, electronic unit, 1DQJF's front contact, and 2DQJ's positioning contact. 1DQJ continues to be attracted, and the electronic unit 102 is powered on. During this period, the reverse contact of 2DQJ is disconnected to KZ and connected to KF. There is no electricity in 1DQJ's 3-4 coil and 1-2 coil. 1DQJ relies on its own slow-release characteristics to maintain attraction. See the timing diagram of the starting circuit. Figure 5 .

[0045] By switching the power supply of different windings of the DC motor, the direction of the motor can be changed, and then the switch machine can be controlled to switch to different directions to achieve the turnout positioning and reverse movement. Figure 5 As shown, when the interlocking system operates the turnout, 1DQJF is sucked up, and the DC power supply DC220V supplies power to each traction point of the control turnout through the front contact of 1DQJF. The electronic unit 102 determines whether the interlocking system is a positioning operation or a reverse operation. When the positioning operation is performed, the electronic unit 102 closes the quick-acting switch KA1 and the slow-acting switch KA2, and the switch machine moves in the positioning direction. When the switch machine is moved into place, the electronic unit 102 disconnects the quick-acting switch KA1 and the slow-acting switch KA2, and the switch machine stops. When the reverse operation is performed, the electronic unit 102 closes the quick-acting switch KB1 and the slow-acting switch KB2, and the switch machine moves in the reverse direction. When the switch machine is moved into place, the electronic unit 102 disconnects the quick-acting switch KB1 and the slow-acting switch KB2, and the switch machine stops. See the timing diagram of the drive circuit. Figure 6 .

[0046] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A turnout control circuit that realizes separation of control display circuit and drive circuit, characterized in that It comprises: a control circuit (1), a display circuit (2), a drive circuit (3), an interlocking operation platform unit (4) and a switch unit (5); the control circuit (1) comprises a relay control circuit (101) and an electronic unit (102); the drive circuit (3) comprises a drive switch (301) and an electronic unit switch group (302); the interlocking operation platform unit (4) is electromechanically connected to the switch unit (5) via the display circuit (2); the display circuit (2) obtains information of the switch unit (5), and provides the state information of the switch unit (5) to the interlocking operation platform unit (4) for display; the interlocking operation platform unit (4) is connected to the relay control circuit of the control circuit (1) via an interface (101) is electrically connected via an interface, an operation command is sent to the relay control circuit (101) via the interface, the relay control circuit (101) of the control circuit (1) is electrically connected to the electronic unit (102) to obtain the operation command, the relay control circuit (101) is electrically connected to the drive switch (301) of the drive circuit (3) via the relay control circuit (101), and the electronic unit (102) is electrically connected to the electronic unit switch group (302), the drive switch (301) and the electronic unit switch group (302) together control the operation of the switch machine in the switch machine group, and output the operation information via the display circuit (2); the electronic unit switch group (302) includes a plurality of groups of electronic switches, and the switch machine group also includes a plurality of groups of switch machines, Each switch of the plurality of electronic switches is electrically connected to one of the switch machines in the plurality of switch machines, and each switch of the plurality of electronic switches is electrically connected to one of the interfaces of the drive switch (301). The electronic unit (102) comprises a data processing unit (1020), a first snap-action switch (1021), a second snap-action switch (1022), a first buffer switch (1023), a second buffer switch (1024), a wireless network (1025), and a switch machine working current sensor unit (1026). The data processing unit (1020) is connected to a first snap-action switch via a first snap-action switch. The switch (1021), the second quick-acting switch (1022), the first buffer switch (1023), and the second buffer switch (1024) are electrically connected to the control end of the switch unit to control the switch machine of the switch unit to start forward or reverse rotation; the data processing unit (1020) simultaneously obtains the working current of the switch machine through the switch machine working current sensing unit (1026); the data processing unit (1020) is simultaneously connected to the wireless network (1025) by radio to control the electronic switch (102); and the working current of the switch machine is obtained through the switch machine working current sensing unit (1026).

2. A turnout control circuit for realizing separation of a control display circuit and a drive circuit according to claim 1, characterized in that The indicating circuit (2) comprises a positioning indicating circuit (201) and a reverse indicating circuit (202); the positioning indicating circuit (201) comprises: DBJ1-4, 2DQJ132-131, 1DQJ rear contacts, 2DQJ112-111, traction point 1-n switch machine rib contacts 31-32, 33-34, 13-14, a diode D1, a resistor R, a secondary side of an indicating transformer, and a capacitor C to form an indicating circuit. When the current direction is DBJ 1-4, the diode D1 is turned on and DBJ is sucked up. When the current direction is DBJ 4-1, the diode D1 is disconnected, and the capacitor C is discharged to keep DBJ sucked up; the reverse position indicating circuit (202) comprises: FBJ1-4, 2DQJ133-131, 1DQJ rear contact, 2DQJ113-111, traction point 1-n switch machine rib contact 21-22, 23-24, 43-44, diode D1, resistor R, the secondary side of the indicating transformer, and capacitor C form an indicating circuit, when the current direction is FBJ 1-4, the diode D1 is turned on, FBJ sucked up, when the current direction is FBJ 4-1, the diode D1 is disconnected, and the capacitor C is discharged to keep FBJ sucked up.

3. A turnout control circuit for realizing separation of control display circuit and drive circuit according to claim 1, characterized in that The driving circuit (3) has two forms, one is a 4-wire + 3-wire AC turnout control circuit (1), and the other is a 4-wire + 2-wire AC turnout control circuit (1); the 4-wire + 3-wire AC turnout control circuit (1) controls by changing the phase sequence of any two phases of the three-phase AC motor to change the direction of the motor, thereby controlling the switch machine to switch to different directions, thereby realizing the turnout fixed and reverse position movement. When the interlocking system operates the turnout, 1DQJF is sucked up, and the three-phase power supply AC380V supplies power to each traction point of the control turnout through the front contact of 1DQJF. The electronic unit (102) determines whether the interlocking system is a positioning operation or a reverse position operation. When the positioning operation is performed, the electronic unit (102) closes the quick-acting switch KA1 and the slow-acting switch KA2, and the turnout machine moves in the positioning direction. When the turnout machine is moved to the right position, the electronic unit (102) disconnects KA1 and KA2, and the turnout machine stops moving; when the reverse position operation is performed, The electronic unit (102) closes the quick-acting switch KB1 and the slow-acting switch KB2, and the switch machine moves in the reverse direction. When the switch machine is moved to the right position, the electronic unit (102) disconnects KB1 and KB2, and the switch machine stops moving.

4. A turnout control circuit for realizing separation of control display circuit and drive circuit according to claim 1, characterized in that The further described 4-wire + 3-wire AC turnout control process is through the following three processes: 1) The interlocking system issues a positioning operation command, DCJ is attracted, the 3-4 coil of 1DQJ passes through the front contact of the DCJ relay, 141-143 of 2DQJ, the front contacts of SJ and YCJ are energized, 1DQJ is attracted, the front contact of 1DQJ is connected, and the 1DQJF relay is attracted; 2) The 3-4 coil of 2DQJ is energized through the front contacts of 1DQJ and DCJ relays, and the pole is turned to close the positioning contact; 3) The reverse contact of 2DQJ cuts off the 3-4 coil circuit of 1DQJ to prepare for the next operation; KZ is connected to KF through the 1-2 coil of 1DQJ, the front contact of 1DQJ, the positioning contact of 2DQJ, the switch machine rib contacts 41-42, the electronic unit (102), the front contact of 1DQJF, and the positioning contact of 2DQJ. 1DQJ continues to be attracted, and the electronic unit (102) is powered on. During this period, the reverse contact of 2DQJ is disconnected to KZ and connected to KF. The 3-4 coil and 1-2 coil of 1DQJ are both without electricity. 1DQJ relies on its own slow-release characteristics to remain attracted.

5. According to claim 3, a turnout control circuit that realizes separation of control display circuit and drive circuit: the control circuit is a 4-wire + 2-wire DC turnout control process through the following three processes: 1) The interlocking system issues a positioning operation command, DCJ is attracted, the 3-4 coil of 1DQJ passes through the front contact of the DCJ relay, 141-143 of 2DQJ, the front contacts of SJ and YCJ are energized, 1DQJ is attracted, the front contact of 1DQJ is connected, and the 1DQJF relay is attracted; 2) The 3-4 coil of 2DQJ is energized through the front contacts of 1DQJ and DCJ relays, and the pole is turned to close the positioning contact; 3) The reverse contact of 2DQJ cuts off the 3-4 coil circuit of 1DQJ to prepare for the next operation; KZ is connected to KF through 1DQJ's 1-2 coil, 1DQJ's front contact, 2DQJ's positioning contact, switch machine rib contact 41-42, electronic unit, 1DQJF's front contact, and 2DQJ's positioning contact. 1DQJ continues to be sucked up, and the electronic unit (102) is powered on. During this period, the reverse contact of 2DQJ is disconnected to KZ and connected to KF. 1DQJ's 3-4 coil and 1-2 coil are both without power, and 1DQJ relies on its own slow release characteristics. The motor is kept sucked up; by switching the power supply of different windings of the DC motor, the direction of the motor can be changed, thereby controlling the switch machine to switch in different directions, so as to realize the fixed and reverse position movement of the turnout. When the interlocking system operates the turnout, 1DQJF is sucked up, and the DC power supply DC220V supplies power to each traction point of the control turnout through the front contact of 1DQJF. The electronic unit (102) determines whether the interlocking system is a positioning operation or a reverse position operation. When the positioning operation is performed, the electronic unit (102) closes the quick-acting switch KA1 and the slow-acting switch KA2, and the switch machine moves in the positioning direction. When the switch machine is moved to the right position, the electronic unit (102) disconnects KA1 and KA2, and the switch machine stops moving. When the reverse position operation is performed, the electronic unit (102) closes the quick-acting switch KB1 and the slow-acting switch KB2, and the switch machine moves in the reverse position direction. When the switch machine is moved to the right position, the electronic unit (102) disconnects KB1 and KB2, and the switch machine stops moving.

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