CN112722002A - Subway train ATO door control interface data recorder - Google Patents
Subway train ATO door control interface data recorder Download PDFInfo
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- CN112722002A CN112722002A CN202110103445.2A CN202110103445A CN112722002A CN 112722002 A CN112722002 A CN 112722002A CN 202110103445 A CN202110103445 A CN 202110103445A CN 112722002 A CN112722002 A CN 112722002A
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- central controller
- data recorder
- contactor
- ato
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- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 102100032449 EGF-like repeat and discoidin I-like domain-containing protein 3 Human genes 0.000 description 1
- 101001016381 Homo sapiens EGF-like repeat and discoidin I-like domain-containing protein 3 Proteins 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0054—Train integrity supervision, e.g. end-of-train [EOT] devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0081—On-board diagnosis or maintenance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a subway train ATO door interface data recorder, which comprises: a central controller; the optical coupling isolating switches are respectively connected with the central controller and each contactor in the ATO control circuit of the subway train, and transmit signals of the contactors to the central controller in real time; and the data recording module is connected with the central controller and records the signal input time and the signal input state of each contactor. The data recorder for the ATO door control interface of the subway train provided by the invention does not need to change the original circuit structure of the train, can monitor and record the ATO door control signal in real time, can accurately judge the cause of the fault when the fault occurs, and is convenient for workers to carry out quick maintenance.
Description
Technical Field
The invention relates to the field of communication, in particular to a data recorder for an ATO (automatic train operation) door control interface of a subway train.
Background
In the front line operation of subway trains, train passenger room doors are important factors for the safe front operation of trains. When the train operates in the Shanghai subway, the train door is opened and closed once in 2 to 2.5 minutes on average, and if the train door cannot be normally opened and closed, passengers cannot get on or off, and disorder is caused in a subway platform.
The Train door of the Shanghai subway Train has two control modes, one is a pure manual mode door opening and closing mode, and the other is a door opening and closing mode (automatic door opening and closing control) under Automatic Train Operation (ATO). Because the automatic driving safety is high, the train starts and brakes stably, and the riding comfort of passengers is good, the train adopts an ATO automatic driving mode more and more at present.
The train cannot open and close the door in the ATO mode of the vehicle, and two possibilities exist: one is a device failure of the pass number, and the other is a device failure of the vehicle. And the problem of monitoring the connection between the ATO equipment door-on signal and the controlled contactor on the train is not considered in the beginning of train circuit design. When a transient fault occurs in the door, it is difficult to distinguish the cause of the fault. Sometimes, in order to determine that the contactor does not act, the fault of the number passing equipment, such as no power supply of a coil, or the fault of the equipment of the vehicle, such as the fault of the contactor, needs to be started from the fault phenomenon and the calling of the vehicle monitoring video, so that time and labor are wasted, the obtained conclusion is sometimes inaccurate, the train maintenance quality is influenced, and the safe operation of the train alignment point is directly influenced.
Disclosure of Invention
The invention aims to provide a data recorder for an ATO (automatic train operation) door control interface of a subway train, which can directly judge a fault point when the train has a fault by monitoring a door control signal sent by the ATO and can accurately and quickly maintain the train.
In order to achieve the above object, the present invention provides a subway train ATO door interface data recorder, comprising:
a central controller;
the optical coupling isolating switches are respectively connected with the central controller and each contactor in the ATO control circuit of the subway train, and transmit signals of the contactors to the central controller in real time;
and the data recording module is connected with the central controller and records the signal input time and the signal input state of each contactor.
Preferably, a current limiting resistor is further connected between each optocoupler isolation switch and the contactor, and the current of the input optocoupler isolation switch is controlled through the current limiting resistor.
Preferably, the optical coupler isolation switch further comprises a wiring row which is respectively connected with each contactor and each optical coupler isolation switch and used for transmitting the input signals of the contactors to the optical coupler isolation switches in real time.
Preferably, the contactor in the ATO control circuit of the subway train comprises: the enabling contactor, the door closing contactor, the door opening contactor and the ATO equipment starting contactor respectively transmit a contactor enabling signal, a door closing signal, a door opening signal and an ATO equipment starting signal to the central controller.
Preferably, the peripheral circuit is connected with the central controller, and comprises:
the power supply is connected with the central controller and supplies power to the data recorder;
the crystal oscillator circuit is connected with the central controller and provides a reference clock signal for the data recorder; and
and the reset circuit is connected with the central controller and is used for restoring the data recorder to the initial state.
Preferably, the method further comprises the following steps:
the clock module is connected with the central controller and is used for providing reference time for the data recorder;
and the liquid crystal display module is connected with the central controller and displays the current opening and closing state of the vehicle door and the current time according to the received vehicle door closing signal and the vehicle door opening signal.
Preferably, the clock module further comprises a plurality of keys connected with the central controller and used for setting the time of the clock module.
Preferably, the system further comprises a USB data downloading module connected to the central controller, for writing a program into the central controller.
Preferably, the controller further comprises a pull-up resistor connected with the central controller for enabling the central controller to reach an operating voltage.
Preferably, the central controller is a single chip microcomputer.
The invention has the technical effects that:
(1) the data recorder for the ATO door control interface of the subway train can monitor and record the ATO door control signal in real time, can accurately judge the cause of the fault when the fault occurs, and is convenient for workers to quickly maintain;
(2) the data recorder of the ATO door control interface of the subway train provided by the invention does not need to change the original circuit structure of the train, the input end of the data recorder can be directly connected with the ATO door control signal, the signal is input by adopting optical coupling isolation, the circuit of the ATO door control interface data recorder of the subway train is isolated from the circuit of the subway train, and the circuit of the subway train is not influenced.
Drawings
Fig. 1 is a control circuit of a subway train ATO.
Fig. 2 is a circuit diagram of a data recorder of an ATO door control interface of a subway train provided by the invention.
Fig. 3 is a schematic connection diagram of a data recorder of an ATO door control interface of a subway train and a control circuit of an ATO of the subway train.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 3, in the ATO control circuit of the subway train, KM34, KM35, KM44 and KM45 are train door enabling contactors, KM36 are door closing contactors, KM11 and KM12 are a door left opening contactor and a door right opening contactor respectively, and KM04 is an ATO equipment starting contactor. And respectively adding 8 outgoing lines from the coil input ends of the 8 contactors, and recording as X1-X8 to provide input signals for the data recorder of the ATO door control interface of the subway train.
As shown in FIGS. 2 and 3, J1 is a wiring bank, and U7-U14 are 8 optical coupling isolating switches. 8 lead wires X1-X8 are respectively connected to No. 1-8 positions of a wiring bank J1, are respectively connected with No. 1 pins (input ends) of U7-U14 through a wiring bank J1, and transmit input signals of 8 contactors in an ATO control circuit of the subway train to a central controller. Because the input voltage is DC110V, the input ends of No. 1 pins of U7-U14 are all provided with current limiting resistors, and the input current is 5mA after the current is limited by the current limiting resistors.
In this example, the central controller U1 is an STC90C52RC single chip microcomputer.
The data recorder comprises a peripheral circuit consisting of a power supply U2, a crystal oscillator circuit and a reset circuit. The power supply U2 is connected with the pin 40 of the central controller U1, and meanwhile, the pin 20 of the central controller U1 is grounded, so that the power supply U2 can convert a DC110V power supply into a DC5V power supply to supply power for the data recorder; the crystal oscillator circuit is connected with pins 18 and 19 of the central controller U1, can provide a reference clock signal for the data recorder, and adopts an 11.0592MHZ crystal oscillator; the reset circuit is connected with a pin 9 of the central controller U1 and comprises a reset button K4, when the central controller U1 is powered on, the pin 9 is changed from a high level to a low level, and when a system is halted, the central controller U1 (single chip microcomputer) can be reset by manually pressing the button.
The U3 is a clock module, adopts a DS1302 chip to realize real-time display of a clock, and provides reference time of seconds, minutes, hours, days, months and years for the data recorder. The No. 5 pin of the clock module U3 is connected with the No. 32 pin of the central controller U1 and is used for time resetting; the pin 6 of the clock module U3 is connected with the pin 33 of the central controller U1 and is used for reading and writing data; pin 7 of the clock module U3 is connected to pin 34 of the central controller U1, and pin 34 is a serial clock line, and a clock signal is provided through pin 34.
U4 is the data record module for record door opening and closing time and state of door. The pin 3 of the data recording module U4 is connected with the pin 10 of the central controller U1, and the pin 3 of U4 is at low level, so that the data recorder can be set systematically; pin 4 of U4 is connected to pin 11 of the central controller U1, and can detect the recorder status during data communication.
U5 is a liquid crystal display module for displaying time and door open and close state. Pin 4 of the liquid crystal display module U5 is connected with pin 38 of the central controller U1 and is used for writing control, data are written inwards at high level, and commands are written inwards at low level; pin 5 of U5 is connected with pin 37 of central controller U1, and is used for reading and writing first, reading data at high level and writing data at low level; pin 6 of U5 is connected with pin 36 of central controller U1 as enable signal, which is only used when data are input in series; no. 7-14 pins of U5 are data parallel ports and are connected with No. 1-8 pins of a central controller U1; pin 15 of U5 is connected to pin 39 of the central controller U1 to control the data transmission mode, and the data transmission mode is parallel transmission at high level and serial transmission at low level.
The U6 is a USB data download module, which is connected with the central controller U1, and the USB data download module U6 uses PL-2303SA-SOP8 chip, and can write program into the single chip computer as the central controller U1.
The data recorder also comprises a key for setting the time of the clock module, a key K1 for setting and determining, and a pin No. 15 connected to a central controller U1; the key K2 is used for turning up and is connected to a No. 16 pin of the central controller U1; the key K3 is used to turn down, connected to pin 17 of the central controller U1. After the information is inputted to the U1, the information is written to the U3 through the serial ports of the U1 and the U3, and the time in the U3 is set. When the time setting is performed, U1 cannot perform other operations.
The data recorder also comprises a pull-up resistor P1 which is connected with the central controller U1 and used for increasing the high-level input voltage of the input stage so that the central controller reaches the working voltage.
In conclusion, the data recorder for the ATO door control interface of the subway train provided by the invention can monitor and record the ATO door control signal in real time without changing the original circuit structure of the train, can accurately judge the cause of the fault when the fault occurs, and is convenient for workers to carry out quick maintenance.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A subway train ATO door interface data recorder is characterized by comprising:
a central controller;
the optical coupling isolating switches are respectively connected with the central controller and each contactor in the ATO control circuit of the subway train, and transmit signals of the contactors to the central controller in real time;
and the data recording module is connected with the central controller and records the signal input time and the signal input state of each contactor.
2. The data recorder according to claim 1, wherein a current limiting resistor is further connected between each optocoupler isolation switch and the contactor, and the current input to the optocoupler isolation switch is controlled through the current limiting resistor.
3. The data recorder according to claim 1, further comprising a wiring bank connected to each contactor and each opto-isolator, respectively, for transmitting an input signal of a contactor to the opto-isolator in real time.
4. The data recorder according to claim 1, wherein the contactor in the ATO control circuit of the subway train comprises: the enabling contactor, the door closing contactor, the door opening contactor and the ATO equipment starting contactor respectively transmit a contactor enabling signal, a door closing signal, a door opening signal and an ATO equipment starting signal to the central controller.
5. The data recorder of claim 4, further comprising peripheral circuitry connected to the central controller, the peripheral circuitry comprising:
the power supply is connected with the central controller and supplies power to the data recorder;
the crystal oscillator circuit is connected with the central controller and provides a reference clock signal for the data recorder; and
and the reset circuit is connected with the central controller and is used for restoring the data recorder to the initial state.
6. The data recorder of claim 4, further comprising:
the clock module is connected with the central controller and is used for providing reference time for the data recorder;
and the liquid crystal display module is connected with the central controller and displays the current opening and closing state of the vehicle door and the current time according to the received vehicle door closing signal and the vehicle door opening signal.
7. The data recorder of claim 6, further comprising a plurality of keys coupled to the central controller for setting the time of the clock module.
8. The data recorder of claim 1, further comprising a USB data download module connected to the central controller for writing a program to the central controller.
9. The data recorder of claim 1, further comprising a pull-up resistor connected to the central controller for bringing the central controller to an operating voltage.
10. The data recorder of claim 1, wherein the central controller is a single chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110103445.2A CN112722002A (en) | 2021-01-26 | 2021-01-26 | Subway train ATO door control interface data recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110103445.2A CN112722002A (en) | 2021-01-26 | 2021-01-26 | Subway train ATO door control interface data recorder |
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| Publication Number | Publication Date |
|---|---|
| CN112722002A true CN112722002A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110103445.2A Pending CN112722002A (en) | 2021-01-26 | 2021-01-26 | Subway train ATO door control interface data recorder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113613202A (en) * | 2021-08-09 | 2021-11-05 | 上海地铁维护保障有限公司 | Data recording and remote transmission device applied to FIP network of rail transit vehicle |
-
2021
- 2021-01-26 CN CN202110103445.2A patent/CN112722002A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113613202A (en) * | 2021-08-09 | 2021-11-05 | 上海地铁维护保障有限公司 | Data recording and remote transmission device applied to FIP network of rail transit vehicle |
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