CN106556757A - EMUs neutral-section passing system dynamic simulant test system and method for testing - Google Patents
EMUs neutral-section passing system dynamic simulant test system and method for testing Download PDFInfo
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- CN106556757A CN106556757A CN201610929815.7A CN201610929815A CN106556757A CN 106556757 A CN106556757 A CN 106556757A CN 201610929815 A CN201610929815 A CN 201610929815A CN 106556757 A CN106556757 A CN 106556757A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
EMUs neutral-section passing system dynamic simulant test system and method for testing belong to railway systems automatic neutral-section passing system technical field of measurement and test, the system includes control device, triggering device and four U-shaped fixed mounts, and control device includes power supply, master controller, wireless sending module, No. two wireless sending modules, No. three wireless sending modules and No. four wireless sending modules；Triggering device includes a triggering device, No. two triggering devices, No. three triggering devices and No. four triggering devices；Each triggering device is arranged in the vehicle-mounted inducing receiver of correspondence of EMUs by a U-shaped fixed mount.Using the test system of the present invention, undue phase study can be carried out in rail track arbitrary region, no longer by rail track conditionality, dynamic undue phase study, processing ease simple with test method can be completed, many advantages, such as success of the test rate is up to 100%, low cost.
Description
Technical field
The invention belongs to railway systems automatic neutral-section passing system technical field of measurement and test, and in particular to a kind of EMUs cross split-phase
System Dynamic Model test system and method for testing.
Background technology
During EMUs GFX-3A neutral-section passing system dynamic tests, it is desirable to which motor-car is with the travel speed more than 70km/h by dividing
Phase region, as shown in figure 1, two magnetic ties are respectively laid in regular railway region before and after phase-separating section, one end of every magnetic tie sets
There is an electromagnetism box, the position of four electromagnetism box G1, G2, G3, G4 mode as shown in Figure 1 is distributed in the both sides of railway.EMUs turn
Two vehicle-mounted inducing receivers are respectively provided with to the both sides of frame lower end, with EMUs direct of travel as front, four vehicle-mounted sensings connect
Left forward side is located in receiving device is vehicle-mounted inducing receiver T1, and positioned at right forward side is vehicle-mounted inducing receiver T2, is located at
Left rear side is vehicle-mounted inducing receiver T3, and be located behind right side is vehicle-mounted inducing receiver T4.Motor-car drives towards phase-separating section
When, when vehicle-mounted inducing receiver T2, vehicle-mounted inducing receiver T4 are sequentially passed through above magnetic tie, the two successively receives electromagnetism box
The electromagnetic signal that G1 sends, when vehicle-mounted inducing receiver T1, vehicle-mounted inducing receiver T3 are sequentially passed through above magnetic tie, the two elder generation
The electromagnetic signal that electromagnetism box G2 sends is received afterwards, and vehicle-mounted inducing receiver T2, vehicle-mounted inducing receiver T4, vehicle-mounted sensing are received
Device T1, vehicle-mounted inducing receiver T3 send corresponding disconnection main circuit breaker according to the electromagnetic signal for receiving and block trailer system
Signal processor of the signal to EMUs, after signal processor reception signal carries out logical process, notifies motor-car set control system
Implement to disconnect main circuit breaker and block trailer system, vehicle enters phase-separating section.In the same manner, after motor-car rolls phase-separating section away from, vehicle-mounted sensing
When receptor T2, vehicle-mounted inducing receiver T4 are sequentially passed through above magnetic tie, the two successively receives the electricity that electromagnetism box G3 sends
Magnetic signal, when vehicle-mounted inducing receiver T1, vehicle-mounted inducing receiver T3 are sequentially passed through above magnetic tie, the two successively receives electricity
The electromagnetic signal that magnetic holder G4 sends, it is vehicle-mounted inducing receiver T2, vehicle-mounted inducing receiver T4, vehicle-mounted inducing receiver T1, vehicle-mounted
Inducing receiver T3 sends the signal of corresponding closure main circuit breaker and trailer system of lifting a blockade according to the electromagnetic signal for receiving
To the signal processor of EMUs, after signal processor reception signal carries out logical process, notify that motor-car set control system is implemented
Closure main circuit breaker and trailer system of lifting a blockade, so as to complete the overall process that motor-car is tested by phase-separating section.Regular railway line
30 kilometers of distance just has a phase-separating section, and experiment railway division required during test is considerably long, and cost is very high, All hosts factory
Test circuit cannot all meet undue phase study condition, and before causing vehicle release, GFX-3A crosses split-phase dynamic test always
Blank, therefore, existing GFX-3A neutral-section passing systems method of testing generally need by train driving to undue phase section just
Rule railway line is carried out up, quite time-consuming effort.
Also, when testing in regular railway line and testing GFX-3A neutral-section passing systems, if cross phase splitting device breaking down,
Vehicle is easy to go out phase-separating section and causes to draw electric arc, burns neutral section insulator, thus causes electric substation to trip, and interruption of power supply is caused
Driving accident.Therefore it provides it is a kind of before EMUs dispatch from the factory verify neutral-section passing system function it is whether working properly, stable, can
The test method leaned on seems particularly significant, while being also each main engine plants difficult problem to be solved.
The content of the invention
If in order to solve it is existing vehicle is driven to carry out in regular railway line neutral-section passing system test method exist
Neutral-section passing system breaks down, and vehicle is easy to go out phase-separating section and causes to draw electric arc, burns neutral section insulator, thus causes electric substation
Tripping operation, interruption of power supply cause the technical problem of driving accident, the present invention to provide a kind of EMUs neutral-section passing system dynamic analog and survey
Test system and method for testing.
The technical scheme taken by present invention solution technical problem is as follows：
EMUs neutral-section passing system dynamic simulant test system, which includes that control device, triggering device and four U-shapeds are fixed
Frame, control device include power supply, master controller, wireless sending module, No. two wireless sending modules, a No. three wireless transmission moulds
Block and No. four wireless sending modules；Triggering device includes：By a wireless receiving module, a battery and a solenoid structure
Into a triggering device, No. two triggering devices being made up of No. two wireless receiving modules, C-size battery and No. two solenoids,
No. three triggering devices being made up of No. three wireless receiving modules, No. three batteries and No. three solenoids, by No. four wireless receiving moulds
No. four triggering devices that block, No. four batteries and No. four solenoids are constituted；Number triggering device, No. two triggering devices, No. three touch
Transmitting apparatus, No. four triggering devices are arranged on vehicle-mounted inducing receiver T2 of EMUs, car by a U-shaped fixed mount correspondence respectively
Carry in inducing receiver T4, vehicle-mounted inducing receiver T1, vehicle-mounted inducing receiver T3；Power supply is electrically connected with master controller, and which is used for
Power to master controller；Master controller, wireless sending module, wireless receiving module, battery, an electromagnetic wire
Circle is sequentially electrically connected, and number wireless sending module of main controller controls sends a trigger to a wireless receiving module, and one
Number wireless receiving module drives a battery to connect a solenoid according to the trigger for receiving；Master controller, No. two nothings
Line sending module, No. two wireless receiving modules, C-size battery, No. two solenoids are sequentially electrically connected, No. two nothings of main controller controls
Line sending module sends No. two triggers to No. two wireless receiving modules, and No. two wireless receiving modules are according to the triggering letter for receiving
Number drive C-size battery connect No. two solenoids；Master controller, No. three wireless sending modules, No. three wireless receiving modules, three
Number battery, No. three solenoids are sequentially electrically connected, and No. three wireless sending modules of main controller controls send No. three triggers to three
Number wireless receiving module, No. three wireless receiving modules drive No. three batteries to connect No. three electromagnetic wires according to the trigger for receiving
Circle；Master controller, No. four wireless sending modules, No. four wireless receiving modules, No. four batteries and No. four solenoids are sequentially electrically connected,
No. four wireless sending modules of main controller controls send No. four triggers to No. four wireless receiving modules, No. four wireless receiving moulds
Tuber drives No. four batteries to connect No. four solenoids according to the trigger for receiving.
The invention has the beneficial effects as follows：Using this test method, need not renovate rail track, install GFX-3A additional undue
Phase ground installation and device, can carry out undue phase study in rail track arbitrary region, no longer by rail track conditionality, i.e.,
Dynamic undue phase study can be completed, simple with test method, processing ease, success of the test rate are up to 100%, and cost is low all
Many advantages.
Description of the drawings
Electromagnetism box distribution schematic diagram when Fig. 1 is existing EMUs GFX-3A neutral-section passing system dynamic tests.
Fig. 2 is the operation principle schematic diagram of EMUs neutral-section passing system dynamic simulant test system of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further details.
As shown in Fig. 2 the EMUs neutral-section passing system dynamic simulant test system of the present invention includes control device, triggering dress
Put and four U-shaped fixed mounts, control device includes power supply, master controller, wireless sending module, a No. two wireless transmission moulds
Block, No. three wireless sending modules and No. four wireless sending modules；Triggering device includes：By a wireless receiving module, No. one it is electric
The triggering device that pond and a solenoid are constituted, by No. two wireless receiving modules, C-size battery and No. two solenoids
No. two triggering devices for constituting, No. three triggering dresses being made up of No. three wireless receiving modules, No. three batteries and No. three solenoids
Put, No. four triggering devices being made up of No. four wireless receiving modules, No. four batteries and No. four solenoids；A number triggering device is led to
A U-shaped fixed mount is crossed in vehicle-mounted inducing receiver T2 of EMUs, No. two triggering devices pass through a U-shaped fixed mount
In vehicle-mounted inducing receiver T4 of EMUs, No. three triggering devices are arranged on EMUs by a U-shaped fixed mount
In vehicle-mounted inducing receiver T1, No. four triggering devices are arranged on the vehicle-mounted inducing receiver of EMUs by a U-shaped fixed mount
On T3.
The method of testing of EMUs neutral-section passing system dynamic simulant test system of the present invention comprises the steps：
Step one, EMUs speed reached split-phase require when, startup power supply, test system enter simulation EMUs sail
Enter the pattern of phase-separating section, number wireless sending module of main controller controls sends a trigger to a wireless receiving mould
Block, a wireless receiving module drive a battery to connect a solenoid, an electromagnetic wire according to the trigger for receiving
Enclose the electric disconnected induced signal that warns to vehicle-mounted inducing receiver T2, vehicle-mounted inducing receiver T2 is by the advance notice for receiving disconnected sensing
Signal passes to the signal processor of EMUs, and signal processor enters the disconnected pattern of advance notice according to the signal for receiving；
After step 2,2s～6s, after optimal setting 2s, No. two wireless sending modules of main controller controls send No. two and touch
No. two wireless receiving modules are signaled to, No. two wireless receiving modules drive C-size battery to connect two according to the trigger for receiving
Number solenoid, No. two solenoids obtain the electric disconnected induced signal that warns to vehicle-mounted inducing receiver T4, and vehicle-mounted sensing is received
Device T4 is passed to the signal processor of EMUs by the advance notice for receiving disconnected induced signal, and signal processor enters according to the signal for receiving
Row logical process, if signal processor exports the disconnected induced signal of advance notice, does not do output function, otherwise signal processor output
The disconnected induced signal of advance notice, notifies that motor-car set control system disconnects main circuit breaker and blocks trailer system；
After step 3,2s～6s, after optimal setting 2s, No. three wireless sending modules of main controller controls send No. three and touch
No. three wireless receiving modules are signaled to, No. three wireless receiving modules drive No. three batteries to connect three according to the trigger for receiving
Number solenoid, No. three solenoids obtain electric sending and force disconnected induced signal to vehicle-mounted inducing receiver T1, and vehicle-mounted sensing is received
The disconnected induced signal that forces for receiving is passed to the signal processor of EMUs by device T1, and signal processor enters according to the signal for receiving
Row logical process, if signal processor exports the disconnected induced signal of advance notice, does not do output function, otherwise signal processor output
Disconnected induced signal is forced, notifies that motor-car set control system turns off main circuit breaker and blocks trailer system；
After step 4,2s～6s, after optimal setting 2s, No. four wireless sending modules of main controller controls send No. four and touch
No. four wireless receiving modules are signaled to, No. four wireless receiving modules drive No. four batteries to connect four according to the trigger for receiving
Number solenoid, No. four solenoids obtain electric sending and force disconnected induced signal to vehicle-mounted inducing receiver T3, and vehicle-mounted sensing is received
The disconnected induced signal that forces for receiving is passed to the signal processor of EMUs by device T3, and signal processor enters according to the signal for receiving
Row logical process, if signal processor has been exported forces disconnected induced signal, does not do output function, otherwise signal processor output
Disconnected induced signal is forced, notifies that motor-car set control system disconnects main circuit breaker immediately and blocks trailer system；
After step 5,6s～20s, after optimal setting 6s, test system enters the mould that simulation EMUs sail out of phase-separating section
Formula, number wireless sending module of main controller controls send a trigger to a wireless receiving module, and No. one wirelessly connects
Receiving module drives battery to connect a solenoid according to the trigger for receiving, and solenoid is obtained and electric sends pre- extensive
The pre-restore induced signal of reception is passed to EMUs to vehicle-mounted inducing receiver T2, vehicle-mounted inducing receiver T2 by multiple induced signal
Signal processor, signal processor according to the signal for receiving enter pre-restore pattern；
After step 6,2s～6s, after optimal setting 2s, No. two wireless sending modules of main controller controls send No. two and touch
No. two wireless receiving modules are signaled to, No. two wireless receiving modules drive C-size battery to connect two according to the trigger for receiving
Number solenoid, No. two solenoids obtain the electric pre-restore induced signal that sends to vehicle-mounted inducing receiver T4, and vehicle-mounted sensing is received
Device T4 is passed to the signal processor of EMUs by the pre-restore induced signal of reception, and signal processor enters according to the signal for receiving
Row logical process, if signal processor has exported pre-restore induced signal, does not do output function, otherwise signal processor output
Pre-restore induced signal, notifies motor-car set control system closure main circuit breaker trailer system of lifting a blockade；
After step 7,2s～6s, after optimal setting 2s, No. three wireless sending modules of main controller controls send No. three and touch
No. three wireless receiving modules are signaled to, No. three wireless receiving modules drive No. three batteries to connect three according to the trigger for receiving
Number solenoid, No. three solenoids obtain electric sending and force recovery induced signal to vehicle-mounted inducing receiver T1, and vehicle-mounted sensing connects
Receive device T1 and the recovery induced signal that forces for receiving is passed to into the signal processor of EMUs, signal processor is according to the letter for receiving
Number logical process is carried out, if signal processor has exported pre-restore induced signal, do not do output function, otherwise signal processor
Output forces recovery induced signal, notifies that motor-car set control system closes main circuit breaker and trailer system of lifting a blockade at once；
After step 8,2s～6s, after optimal setting 2s, No. four wireless sending modules of main controller controls send No. four and touch
No. four wireless receiving modules are signaled to, No. four wireless receiving modules drive No. four batteries to connect four according to the trigger for receiving
Number solenoid, No. four solenoids obtain electric sending and force recovery induced signal to vehicle-mounted inducing receiver T3, and vehicle-mounted sensing connects
Receive device T3 and the recovery induced signal that forces for receiving is passed to into the signal processor of EMUs, signal processor is according to the letter for receiving
Number logical process is carried out, if signal processor has been exported forces recovery induced signal, do not do output function, otherwise signal processing
Device output forces recovery induced signal, notifies that motor-car set control system closes main circuit breaker and trailer system of lifting a blockade immediately,
Complete EMUs neutral-section passing system dynamic simulant test method.
The method of testing of the present invention is in the state of ground does not have electromagnetism box to wait split-phase test equipment, using wireless controlled
Mode processed according to number triggering device of sequencing contro, No. two triggering devices, No. three triggering devices, the connection of No. four triggering devices and
Disconnect, so realize vehicle on any tram-line road can true overall process of the simulating vehicle into and out of phase-separating section, realize dispatching from the factory
The purpose of front authenticated split-phase systemic-function.
Claims (2)
1. EMUs neutral-section passing system dynamic simulant test system, it is characterised in that the system includes control device, triggering device
With four U-shaped fixed mounts, control device include power supply, master controller, wireless sending module, No. two wireless sending modules,
No. three wireless sending modules and No. four wireless sending modules；Triggering device includes：By a wireless receiving module, a battery and
The triggering device that a number solenoid is constituted, is made up of No. two wireless receiving modules, C-size battery and No. two solenoids
No. two triggering devices, No. three triggering devices being made up of No. three wireless receiving modules, No. three batteries and No. three solenoids, by
No. four triggering devices that No. four wireless receiving modules, No. four batteries and No. four solenoids are constituted；Number triggering device, No. two touch
Transmitting apparatus, No. three triggering devices, No. four triggering devices are arranged on the vehicle-mounted sense of EMUs respectively by a U-shaped fixed mount correspondence
Answer in receptor T2, vehicle-mounted inducing receiver T4, vehicle-mounted inducing receiver T1, vehicle-mounted inducing receiver T3；
Power supply is electrically connected with master controller, and which is used to power to master controller；
Master controller, wireless sending module, wireless receiving module, battery, a solenoid are sequentially electrically connected,
Number wireless sending module of main controller controls sends a trigger to a wireless receiving module, a wireless receiving mould
Tuber drives a battery to connect a solenoid according to the trigger for receiving；
Master controller, No. two wireless sending modules, No. two wireless receiving modules, C-size battery, No. two solenoids are sequentially electrically connected,
No. two wireless sending modules of main controller controls send No. two triggers to No. two wireless receiving modules, No. two wireless receiving moulds
Tuber drives C-size battery to connect No. two solenoids according to the trigger for receiving；
Master controller, No. three wireless sending modules, No. three wireless receiving modules, No. three batteries, No. three solenoids are sequentially electrically connected,
No. three wireless sending modules of main controller controls send No. three triggers to No. three wireless receiving modules, No. three wireless receiving moulds
Tuber drives No. three batteries to connect No. three solenoids according to the trigger for receiving；
Master controller, No. four wireless sending modules, No. four wireless receiving modules, No. four batteries and No. four solenoids are sequentially electric
Even, No. four wireless sending modules of main controller controls send No. four triggers to No. four wireless receiving modules, and No. four wirelessly connect
Receiving module drives No. four batteries to connect No. four solenoids according to the trigger for receiving.
2. the method for testing based on the EMUs neutral-section passing system dynamic simulant test system described in claim 1, its feature exist
In the method comprises the steps：
Step one, when EMUs speed reached split-phase and required, startup power supply, test system enter simulation EMUs and sail into point
The pattern of phase region, number wireless sending module of main controller controls send a trigger to a wireless receiving module, and one
Number wireless receiving module drives a battery to connect a solenoid according to the trigger for receiving, and a solenoid obtains electric
The advance notice for receiving disconnected induced signal is passed to vehicle-mounted inducing receiver T2, vehicle-mounted inducing receiver T2 by the disconnected induced signal that warns
To the signal processor of EMUs, signal processor enters the disconnected pattern of advance notice according to the signal for receiving；
After step 2,2s～6s, it is wireless to No. two that No. two wireless sending modules of main controller controls send No. two triggers
Receiver module, trigger driving C-size battery connection No. two solenoids of No. two wireless receiving modules according to reception, No. two
Solenoid obtains the advance notice that the electric disconnected induced signal that warns will be received to vehicle-mounted inducing receiver T4, vehicle-mounted inducing receiver T4
Disconnected induced signal passes to the signal processor of EMUs, and signal processor carries out logical process according to the signal for receiving, if letter
Number processor exports the disconnected induced signal of advance notice, then do not do output function, the otherwise disconnected induced signal of signal processor output advance notice,
Notify that motor-car set control system disconnects main circuit breaker and blocks trailer system；
After step 3,2s～6s, it is wireless to No. three that No. three wireless sending modules of main controller controls send No. three triggers
Receiver module, No. three batteries No. three solenoids of connection of trigger driving of No. three wireless receiving modules according to reception, No. three
Solenoid obtains electric sending and forces disconnected induced signal to vehicle-mounted inducing receiver T1, and vehicle-mounted inducing receiver T1 is forced reception
Disconnected induced signal passes to the signal processor of EMUs, and signal processor carries out logical process according to the signal for receiving, if letter
Number processor exports the disconnected induced signal of advance notice, then do not do output function, and otherwise signal processor output forces disconnected induced signal,
Notify that motor-car set control system turns off main circuit breaker and blocks trailer system；
After step 4,2s～6s, it is wireless to No. four that No. four wireless sending modules of main controller controls send No. four triggers
Receiver module, No. four batteries No. four solenoids of connection of trigger driving of No. four wireless receiving modules according to reception, No. four
Solenoid obtains electric sending and forces disconnected induced signal to vehicle-mounted inducing receiver T3, and vehicle-mounted inducing receiver T3 is forced reception
Disconnected induced signal passes to the signal processor of EMUs, and signal processor carries out logical process according to the signal for receiving, if letter
Number processor has been exported and has forced disconnected induced signal, then do not do output function, and otherwise signal processor output forces disconnected induced signal,
Notify that motor-car set control system disconnects main circuit breaker immediately and blocks trailer system；
After step 5,6s～20s, test system enters the pattern that simulation EMUs sail out of phase-separating section, main controller controls one
Number wireless sending module sends a trigger to a wireless receiving module, and a wireless receiving module is according to touching for receiving
Signal and drive a battery to connect a solenoid, a solenoid obtains the electric pre-restore induced signal that sends to vehicle-mounted sense
Answer receptor T2, vehicle-mounted inducing receiver T2 that the pre-restore induced signal of reception is passed to the signal processor of EMUs, signal
Processor enters pre-restore pattern according to the signal for receiving；
After step 6,2s～6s, it is wireless to No. two that No. two wireless sending modules of main controller controls send No. two triggers
Receiver module, trigger driving C-size battery connection No. two solenoids of No. two wireless receiving modules according to reception, No. two
Solenoid obtains the electric pre-restore induced signal that sends to vehicle-mounted inducing receiver T4, and vehicle-mounted inducing receiver T4 is pre- extensive by what is received
Multiple induced signal passes to the signal processor of EMUs, and signal processor carries out logical process according to the signal for receiving, if letter
Number processor has exported pre-restore induced signal, then do not do output function, otherwise signal processor output pre-restore induced signal,
Notify motor-car set control system closure main circuit breaker trailer system of lifting a blockade；
After step 7,2s～6s, it is wireless to No. three that No. three wireless sending modules of main controller controls send No. three triggers
Receiver module, No. three batteries No. three solenoids of connection of trigger driving of No. three wireless receiving modules according to reception, No. three
Solenoid obtains electric sending and forces recovery induced signal to vehicle-mounted inducing receiver T1, and vehicle-mounted inducing receiver T1 is strong by what is received
Compel to recover the signal processor that induced signal passes to EMUs, signal processor carries out logical process according to the signal for receiving,
If signal processor has exported pre-restore induced signal, output function is not done, otherwise signal processor output forces recovery sense
Induction signal, notifies that motor-car set control system closes main circuit breaker and trailer system of lifting a blockade at once；
After step 8,2s～6s, it is wireless to No. four that No. four wireless sending modules of main controller controls send No. four triggers
Receiver module, No. four batteries No. four solenoids of connection of trigger driving of No. four wireless receiving modules according to reception, No. four
Solenoid obtains electric sending and forces recovery induced signal to vehicle-mounted inducing receiver T3, and vehicle-mounted inducing receiver T3 is strong by what is received
Compel to recover the signal processor that induced signal passes to EMUs, signal processor carries out logical process according to the signal for receiving,
If signal processor has been exported forces recovery induced signal, output function is not done, otherwise signal processor output forces recovery
Induced signal, notifies that motor-car set control system closes main circuit breaker and trailer system of lifting a blockade immediately, completes EMUs undue
Phase system dynamic simulant test method.
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| CN108919781A (en) * | 2018-07-12 | 2018-11-30 | 沈阳铁路信号有限责任公司 | The self checking method and realization circuit of EMU auto-passing neutral section control system |
| CN108919781B (en) * | 2018-07-12 | 2020-10-27 | 沈阳铁路信号有限责任公司 | Self-checking method and implementation circuit of automatic neutral section passing control system of motor train unit |
| CN110823607A (en) * | 2019-11-18 | 2020-02-21 | 中车长春轨道客车股份有限公司 | Novel method for passing split-phase test of motor train unit |
| CN110823607B (en) * | 2019-11-18 | 2021-03-16 | 中车长春轨道客车股份有限公司 | Method for passing split-phase test of motor train unit |
| CN112014675A (en) * | 2020-09-02 | 2020-12-01 | 中车大同电力机车有限公司 | Detection circuit and detection device of automatic passing neutral section system |
| CN112014675B (en) * | 2020-09-02 | 2023-08-29 | 中车大同电力机车有限公司 | Detection circuit and detection device of automatic passing neutral section system |
| CN113567776A (en) * | 2021-06-10 | 2021-10-29 | 广东白云学院 | Detection method and system for automatic passing split-phase signal processor |
| CN113567776B (en) * | 2021-06-10 | 2022-05-27 | 广东白云学院 | Detection method and system for automatic passing split-phase signal processor |
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