CN115963762A - Test box and train operation detection method - Google Patents

Abstract

The present disclosure relates to a test cartridge comprising: the device comprises a control panel, a shell, a display screen and a signal interface; the control board is arranged in the shell and comprises a test signal module, a sending module and a receiving module; the test signal module is configured to obtain a test signal for simulating the actual operation of the train; the transmitting module is configured to transmit a test signal to the ACSU broadcast control unit so that the ACSU broadcast control unit controls each PIS device in the train to operate according to the test signal; the receiving module is configured to receive the running state data of each PIS device returned by the ACSU broadcast control unit and judge the working state of each PIS device according to the running state data; the number of the signal interfaces is more than two, the signal interfaces are respectively and electrically connected with the sending module and the receiving module, and the signal interfaces are arranged on the outer side wall of the shell; the display screen is electrically connected with the control panel and is arranged on the outer side wall of the shell.

Description

Test box and train operation detection method

Technical Field

The disclosure relates to the technical field of train operation detection, in particular to a test box and a train operation detection method.

Background

The subway train mainly comprises a driver cab at two ends of the train and a plurality of Passenger rooms in the middle of the train, wherein a set of Passenger Information System PIS (Passenger Information System) runs on each train of subway train, and comprises three functions: broadcasting, media and monitoring, which are used for providing information related to train running (station broadcasting, cab broadcasting and the like) and some multimedia information (station information, television video and the like) for passengers and monitoring the internal condition of the train.

The overhaul and maintenance of the subway train usually carries out software upgrading on the PIS according to the operation requirement, and the PIS is tested after upgrading to carry passengers on the main line.

At present, the main method for testing the PIS of the subway train is to coordinate a train operation scheduling plan and carry out on-line passenger-free operation test. However, the on-line off-load test flow is complicated and the cost consumption is large.

Disclosure of Invention

In view of this, the present disclosure provides a test box and a train operation detection method, which send a signal for simulating the actual operation of a train to an ACSU broadcast control unit of the train, so that the train can complete the test of the PIS system without running.

According to an aspect of the present disclosure, there is provided a test cartridge including:

the control panel, the shell, the display screen and the signal interface;

the control board is arranged inside the shell and comprises a test signal module, a sending module and a receiving module;

the test signal module is configured to obtain a test signal for simulating the actual operation of the train;

the sending module is configured to send the test signal to an ACSU broadcast control unit so that the ACSU broadcast control unit controls each PIS device in the train to operate according to the test signal;

the receiving module is configured to receive the operation state data of each of the PIS devices returned by the acu broadcast control unit, and judge the working state of each of the PIS devices according to the operation state data;

the number of the signal interfaces is more than two, the signal interfaces are respectively and electrically connected with the sending module and the receiving module, and the signal interfaces are arranged on the outer side wall of the shell;

the display screen is electrically connected with the control panel, and the display screen is arranged on the outer side wall of the shell.

In a possible implementation manner, the two or more signal interfaces are a hard-wired signal interface, a 485 signal interface, a 232 signal interface, an ethernet interface, an audio signal interface, and a program download interface.

In one possible implementation, the test signal module includes a micro control unit;

the sending module comprises a relay module, and the hard wire signal interface is electrically connected with the micro control unit through the relay module;

the receiving module comprises a 485 conversion module, a 232 conversion module and an Ethernet module, the 485 signal interface is electrically connected with the micro control unit through the 485 conversion module, the 232 signal interface is electrically connected with the micro control unit through the 232 conversion module, and the Ethernet interface is electrically connected with the micro control unit through the Ethernet module.

In a possible implementation manner, the device further comprises an indicator light;

the indicating lamp is electrically connected with the micro-control unit and is suitable for displaying the on-off state of a power supply or the working state of each signal interface.

In a possible implementation manner, the system further comprises an OCC audio signal interface and a program downloading interface;

the OCC audio signal interface comprises an input interface and an output interface, and the input interface is electrically connected with the output interface through a transformer;

the program downloading interface is electrically connected with the test signal module.

According to another aspect of the present disclosure, there is provided a train operation detection method, including:

acquiring a test signal for simulating the actual operation of a train;

sending the test signal to an ACSU broadcast control unit so that the ACSU broadcast control unit controls each PIS device in the train to operate according to the test signal;

and receiving the running state data of each PIS device returned by the ACSU broadcast control unit, and judging the working state of each PIS device according to the running state data.

In a possible implementation manner, the obtaining of the test signal for simulating the actual operation of the train is implemented based on preset train operation line information.

In a possible implementation mode, when a test signal for simulating the actual running of the train is obtained, different test modes are used;

the test modes include a fully automatic broadcast test and a semi-automatic broadcast test.

In one possible implementation, when the test signal for simulating the actual operation of the train is obtained through the fully automatic broadcast test, the method includes:

generating the test signal for representing the station information based on the station information of the actual operation of the train;

and packaging the test signal, and sending the packaged test signal to the ACSU broadcast control unit of the train according to a preset period.

In one possible implementation, when the test signal for simulating the actual operation of the train is obtained through the semi-automatic broadcast test, the method includes:

generating the test signal for representing the running speed of the train or opening and closing the door;

and packaging the test signal, and sending the packaged test signal to the ACSU broadcast control unit of the train according to a preset period.

The method is suitable for detecting the Passenger Information System PIS (passage Information System) operated by the subway train. The method comprises the steps of acquiring a test signal stored in the test module and used for simulating the actual running of a Train by setting a Control board provided with a test signal module, a sending module and a receiving module, sending the test signal stored in the test module to a broadcast Control Unit ACSU (interpretation Control System Unit) of the Train by using the sending module, and simulating a signal sent by a superior Train Control management System TCMS (Train Control management System) during the running of the Train to the broadcast Control Unit ACSU of the Train. The ACSU broadcast control unit of the train controls the PIS equipment of each carriage according to the received test signal, the PIS equipment of each carriage sends running state data to the ACSU broadcast control unit of the train according to the running state of the PIS equipment, the running state data is obtained through the receiving module, the running state data is judged, and then whether the PIS equipment of the train runs normally or not is judged. The display screen is used for controlling the test signal module to select the control signal and displaying the judgment result of the running state data, and the judgment result can be realized by adopting common technical means in the field, and the details are not repeated here. Compared with the traditional method for testing the PIS passenger information system of the subway train, the method has the advantages that coordinated train operation scheduling is not needed, namely, the PIS passenger information system operated by the subway train can be detected without train running, and the detection cost is effectively reduced.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

FIG. 1 shows a front view of a test cartridge of an embodiment of the present disclosure;

FIG. 2 shows a top view of a test cartridge of an embodiment of the present disclosure;

FIG. 3 illustrates a bottom view of a test cartridge of an embodiment of the present disclosure;

FIG. 4 shows a rear view of a test cartridge of an embodiment of the present disclosure;

FIG. 5 shows a left side view of a test cartridge of an embodiment of the present disclosure;

FIG. 6 shows a left side cross-sectional view of a test cartridge of an embodiment of the present disclosure;

FIG. 7 shows a right side view of a test cartridge of an embodiment of the present disclosure;

FIG. 8 shows a schematic diagram of a test cartridge of an embodiment of the present disclosure;

FIG. 9 illustrates a flow chart of a train operation detection method of an embodiment of the present disclosure;

fig. 10 shows a flow chart of a train operation detection method of another embodiment of the present disclosure;

FIG. 11 shows a schematic diagram of a train control process;

FIG. 12 shows an operation interface displayed by a display screen of the test cartridge of the embodiment of the present disclosure during transmission of the test signal;

FIG. 13 illustrates a failure determination interface of a display screen of a test cartridge of an embodiment of the present disclosure;

FIG. 14 illustrates a schematic connection diagram of a test cartridge to an interposer according to an embodiment of the present disclosure;

FIG. 15 shows a circuit diagram of a relay module of the test cassette of an embodiment of the present disclosure;

FIG. 16 shows a circuit diagram of a 110V to 12V module of a test cartridge of an embodiment of the present disclosure;

fig. 17 shows a circuit diagram of a 110V to 12V module of a test cartridge of an embodiment of the disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

FIG. 1 shows a front view of a test cartridge of an embodiment of the present disclosure; FIG. 2 shows a top view of a test cartridge of an embodiment of the present disclosure; FIG. 3 illustrates a bottom view of a test cartridge of an embodiment of the present disclosure; FIG. 4 illustrates a rear view of a test cartridge of an embodiment of the present disclosure; FIG. 5 shows a left side view of a test cartridge of an embodiment of the present disclosure; FIG. 6 shows a left side cross-sectional view of a test cartridge of an embodiment of the present disclosure; FIG. 7 shows a right side view of a test cartridge of an embodiment of the present disclosure; FIG. 8 shows a schematic diagram of a test cartridge of an embodiment of the present disclosure; FIG. 9 illustrates a flow chart of a train operation detection method of an embodiment of the present disclosure; FIG. 10 illustrates a flow chart of a train operation detection method of another embodiment of the present disclosure; FIG. 11 shows a schematic diagram of a train control process; FIG. 12 shows an operation interface displayed on a display screen of the test box of the embodiment of the present disclosure during the process of sending the test signal; FIG. 13 illustrates a failure determination operator interface of a display screen of a test cassette of an embodiment of the present disclosure; FIG. 14 illustrates a schematic connection diagram of a test cartridge to an interposer according to an embodiment of the present disclosure; FIG. 15 shows a circuit diagram of a relay module of the test cassette of an embodiment of the present disclosure; FIG. 16 shows a circuit diagram of a 110V to 12V module of a test cartridge of an embodiment of the present disclosure; fig. 17 shows a circuit diagram of a 110V to 12V module of a test cartridge of an embodiment of the disclosure. As shown in fig. 1, the test cartridge includes: the control panel, the shell 100, the display screen 200 and the signal interface; the control board is arranged inside the shell 100 and comprises a test signal module, a sending module and a receiving module; the test signal module is configured to obtain a test signal for simulating the actual operation of the train; the transmission module is configured to transmit a test signal to the ACSU broadcast control unit so that the ACSU broadcast control unit controls each PIS device in the train to operate according to the test signal; the receiving module is configured to receive the running state data of each PIS device returned by the ACSU broadcast control unit and judge the working state of each PIS device according to the running state data; the number of the signal interfaces is more than two, the signal interfaces are respectively and electrically connected with the sending module and the receiving module, and the signal interfaces are arranged on the outer side wall of the shell 100; the display screen 200 is electrically connected to the control board, and the display screen 200 is disposed on an outer sidewall of the housing 100.

The method is suitable for detecting the Passenger Information System PIS (passage Information System) operated by the subway train. The method comprises the steps of obtaining a test signal which is stored in a test module and used for simulating the actual running of a Train by setting a Control board which is provided with a test signal module, a sending module and a receiving module, sending the test signal stored in the test module to a broadcast Control Unit ACSU (Announcement Control System Unit) of the Train by using the sending module, and simulating a signal which is sent to the broadcast Control Unit ACSU of the Train by a Train Control Management System (TCMS) which is superior in the running of the Train. The ACSU broadcast control unit of the train controls the PIS equipment of each carriage according to the received test signal, the PIS terminal equipment of each carriage sends running state data to the ACSU broadcast control unit of the train through a PIS communication bus (various forms such as 485, CAN, ethernet and the like) according to the running state of the PIS terminal equipment, the ACSU broadcast control unit of the train analyzes the running state data of the PIS terminal equipment according to an internal communication protocol of the ACSU broadcast control unit of the train or judges that the PIS terminal equipment fails if the terminal equipment data of a certain PIS system cannot be received for a long time, finally the ACSU broadcast control unit of the train collects fault information and sends the fault information to a receiving module through 485 or Ethernet to acquire the running state data of the PIS system, the running state data is judged, whether the PIS equipment of the train runs normally or not is judged, a part of the content of the PIS terminal equipment is shown in FIG. 13, specific display content needs to be determined by combining equipment fault information defined in a communication protocol in an actual project, AMP1/2 defined in the disclosure is a passenger room 1/2, SAPU 1/2 is a controller, LM1/3/4/5/6 is a communication channel, and an IDDU 8/5/6/5 is defined in the disclosure and an IDU 8/2 display screen is a display screen 12/3/2 display screen for displaying a passenger room side. The display screen 200 is used for controlling the test signal module to select the control signal and displaying the operation state data judgment result, and can be implemented by adopting a common technical means in the field, and the details are not repeated here. Compared with the traditional method for testing the PIS passenger information system of the subway train, the method has the advantages that coordinated train operation scheduling is not needed, namely, the PIS passenger information system operated by the subway train can be detected without train running, and the detection cost is effectively reduced.

Here, as shown in fig. 11, most of the current subway trains operate a PIS passenger information system for providing passengers with information related to train traveling (station broadcasting, cab broadcasting, etc.) and some multimedia information (station information, tv video, etc.), and monitoring the inside conditions of the train. The drivers' cabs at two ends of the train are respectively provided with a broadcast Control Unit ACSU (Announcement Control System Unit), one is a PIS main Control device, and the other is used as a redundancy backup. The master Control ACSU is responsible for communicating with a Train Control management System TCMS (Train Control management System) at the upper level, receiving hard-line signals sent by a Train, receiving signals of a vehicle-mounted radio station, audio input and the like, processing the signals, sending the processed signals to PIS equipment of each carriage for execution, and realizing functions of automatic broadcasting, semi-automatic broadcasting station reporting, OCC (operation Control Center) broadcasting and the like; and summarizing the running state data of each PIS device and uploading the summarized running state data to the TCMS to realize the function of reporting the device fault.

In one possible implementation, the two or more signal interfaces are a hard-wired signal interface 121, a 485 signal interface 141, and 232 signal interface 151, an ethernet interface 171, an audio signal interface 161, and a program download interface 111, respectively. The hard-wired signal interface 121 is configured to output two hard-wired signals, i.e., a closed contact and a 110V level signal, to the train PIS, and is configured to send a train speed signal and a door opening and closing signal. There is another use of the closed contact signal: in the OCC broadcasting scheme of part of subway trains, the vehicle-mounted radio station and the PIS do not carry out RS232 communication, but use a closed contact signal, and when the trains adopting the OCC broadcasting scheme are tested, the closed contact signal output of the test box and an OCC audio interface can be used for realizing the OCC broadcasting function test of the PIS. The 485 signal interfaces 141 are two, and the two 485 communication interfaces are used for performing RS485 communication with the train PIS, sending a test signal to the PIS, receiving a state signal uploaded by the PIS, and simulating communication between the TCMS and the PIS on the positive line. The 485 signal interface 141 is connected to the serial port of the MCU110 through the 485 conversion module 140. The audio signal interface 161 is an OCC audio interface, and the signal interface 151 and the OCC audio interface are used to test OCC broadcasts. The 232 signal interface 151 realizes RS232 communication with train PIS, and simulates RS232 communication between a vehicle-mounted radio station and the PIS when the train is in positive line operation; and the output of the OCC audio interface realizes the audio output of the test box to the train PIS, and simulates the audio output of the vehicle-mounted radio station to the PIS in the positive line operation. The 232 interface in the control panel is connected to the serial port of the MCU110 through the 232 conversion module 150, the audio input of the OCC audio interface is externally connected with an audio source, and the audio input is isolated by a transformer 160 in the control panel and then output from the OCC audio interface. Because the partial train TCMS and PIS adopt Ethernet communication, an Ethernet interface 171 is arranged and is electrically connected with the MCU110 through an Ethernet module 170, and the Ethernet module 170 is composed of chips such as a network isolation transformer 160, an Ethernet physical layer transceiver and the like and peripheral circuits thereof. The program downloading interface 111 is used for data transmission between the MCU110 and an upper computer.

Further, as shown in fig. 8, the test signal module includes a micro control unit (MCU 110); the sending module comprises a relay module, and the hard wire signal interface 121 is electrically connected with the micro control unit through the relay module; the receiving module comprises a 485 conversion module 140, a 232 conversion module 150 and an Ethernet module 170, the 485 signal interface 141 is electrically connected with the micro control unit through the 485 conversion module 140, the 232 signal interface 151 is electrically connected with the micro control unit through the 232 conversion module 150, and the Ethernet interface 171 is electrically connected with the micro control unit through the Ethernet module 170. The method can be realized by adopting the technical means commonly used in the field and is not described in detail.

Further, the relay modules include a first relay 120 module and a second relay 130 module. The 110V level signal is generated by the first relay 120 module, the closed contact signal is generated by the second relay 130 module, each relay module consists of seven relays and a control circuit thereof, the control signal is sent by the MCU110, and the MCU110 outputs a hard wire signal by controlling the pull-in and the pull-out of the relays.

Referring to fig. 15, the seven paths of closed contact signals output by the present disclosure all use the same relay control circuit, and the GPIO port of the general micro control unit MCU110 has limited output driving capability, so the IO port of the control relay is configured to control the relay in a weak pull-up and current-filling manner, because the IO port defaults to be a high level output, a two-stage triode control circuit is used to drive the relay, in fig. 15, the MCU _ MASTER _24V network is labeled as the GPIO output port of the microcontroller, R59 and R57 are pull-up resistors, R58 and R56 are current-limiting resistors, and D4 is used as a freewheeling diode.

That is, when the automatic broadcasting mode of the train is tested using the test box, the test box functions as a TCMS on the main line, that is, the test box transmits a packet to the PIS in the same cycle, format, and content as the TCMS on the main line, and transmits an ATC signal, a start station signal, a destination station signal, and a current station signal. The display screen 200 of the test box has setting items of signals of a start station, an end station, a current station and the like, as shown in fig. 12. The system is communicated with the PIS through two RS485 signal interfaces 141 or an Ethernet interface 171, and the used signal interfaces are connected with corresponding interfaces of the PIS; in software design, a communication protocol between the TCMS and the PIS needs to be acquired in advance, a program is written according to the communication protocol and is burned into the MCU110 of the broadcast test box, and functions of input and display of the display screen 200 of the broadcast test box, generation, packaging, and transmission of data are realized. After a tester sets a start station, a terminal station and a current station on the display screen 200, the set contents are converted into digital signals, and the digital signals and other automatically-sent automatic broadcast signals are subjected to data packing by the MCU110 of the broadcast test box according to a communication protocol between the TCMS and the PIS, the packed data packets are sent to the master control ACSU through a signal interface according to a certain period to be analyzed and processed, and the equipment of the PIS is controlled to perform corresponding linkage, so that whether the train PIS automatic broadcast function can normally run or not is detected.

When the test box is used for detecting a semi-automatic mode of a train, the test box plays a role in giving a hard wire signal necessary for semi-automatic broadcast triggering. Aiming at two main hard line signals (a closed contact and a 110V high level are effective) of the current subway train, output interfaces are reserved in the test box, and the test requirements of various types of vehicles are met. Connecting the hard-wired signal interface 121 of the test box to the hard-wired signal interface 121 of the train PIS; according to the semi-automatic broadcasting realization process of the actual operation of the train, hard line signals such as a high-speed signal, a low-speed signal, a door opening and closing signal and the like are output to the PIS, and each PIS device is controlled to carry out corresponding linkage, so that whether the automatic broadcasting function of the PIS of the train can normally operate or not is detected.

When the OCC broadcast of the train is tested by using the test box, the 232 signal interface 151 is connected with the OCC communication interface of the master control ACSU, an audio source is accessed from the audio input of the OCC audio interface of the test box, and then the audio output of the OCC audio interface is connected to the OCC audio input interface of the master control ACSU. The communication protocol between the vehicle-mounted radio station and the PIS needs to be acquired in advance, a program is written according to the communication protocol, namely, a control signal in the broadcast signal is burnt into the MCU110 of the broadcast test box, so that a command can be sent to the master ACSU of the PIS according to the communication protocol and whether the response of the PIS is correct is checked. That is to say, the external sound source of the audio input interface of the OCC audio interface is always in a playing state. When the OCC broadcast option on the test box display screen 200 is not clicked, the test box sends a polling command to the PIS at regular time, the PIS does not play, and responds to an idle instruction; clicking an 'OCC broadcast' option, sending a connection instruction to the PIS by the test box, connecting the PIS with an OCC broadcast channel, starting to play the content of an external sound source of the test box, and responding to the connection instruction; and (3) canceling the click on the 'OCC broadcast' option, sending a hang-up instruction to the PIS by the test box, closing the OCC broadcast channel by the PIS, stopping playing the content of the external sound source of the test box, and responding to the idle instruction. If the PIS responds incorrectly or does not respond to the instruction sent by the broadcast test box, prompting can be carried out on the touch screen of the broadcast test box according to the returned state signal.

Here, it should be noted that the executable program file is a file generated by programming the MCU110 of the test box, and the programming environment is Keil uVision5. After the codes are written according to the actual conditions of the train project, an executable program file is automatically generated and can be burnt into the MCU110 by using a downloader.

As shown in fig. 13, when the PIS is diagnosed for a fault using the test cassette, the communication is performed using the dual 485 signal interface 141 or the ethernet interface 171 according to the actual situation of the train. The communication between the test box and the PIS is bidirectional, the PIS sends data packets, namely running state data, to the test box according to a certain period (for example, 256 ms), the test box analyzes the received data packets according to a communication protocol agreed by the TCMS and the PIS, and the analyzed result is the running state of each PIS device. The interface of fault diagnosis is arranged on a touch screen of the test box, each diagnosed terminal device of the PIS is provided with a display area, the device in a normal operation state is in one color, and the device in a fault state is in another color.

In one possible implementation, an indicator light 191 is further included; the indicator light 191 is electrically connected with the micro control unit MCU110, and the indicator light 191 is suitable for displaying the on-off state of a power supply or the working state of each signal interface. Further, an indicator light 191 is electrically connected to the processor through a buffer driver 190.

Further, the power supply unit is further included, and the power supply unit is adapted to respectively supply power to the first relay 120 module, the second relay 130 module, the display screen 200, the 485 conversion module 140, the 232 conversion module 150, the ethernet module 170, the buffer driver 190 and the processor by using an external power supply.

Furthermore, the power supply unit includes a power interface 181, a 110V to 12V module 182 and a 12V to 3.3V module 183, the power interface 181 is disposed on an outer side wall of the housing 100, the power interface 181 is adapted to be connected to an external power supply, the power interface 181, the 110V to 12V module 182 and the 12V to 3.3V module 183 are sequentially connected in series, the power interface 181 is further electrically connected to the first relay 120 module to supply power to the first relay 120 module, the 110V to 12V module 182 is further electrically connected to the display screen 200 to supply power to the display screen 200, and the 12V to 3.3V module 183 is further electrically connected to the second relay 130 module, the 485 conversion module 140, the 232 conversion module 150, the ethernet module 170, the buffer driver 190 and the processor to supply power.

Referring to fig. 16 and 17, there are circuit diagrams of a 110V to 12V module 182 and a 12V to 3.3V module 183, respectively. As shown in fig. 16, since the train provides a DC110V power input range from DC66V to dc137.5v, in the present disclosure, the input power voltage needs to be converted into an internal power supply, the positive electrode of the input voltage is subjected to overcurrent and short-circuit protection through the F2 fuse, is subjected to overvoltage protection through the R51 varistor, and then enters the U11 power module to be converted into DC12V output after forming the pi filter circuit through the capacitor and the inductor. As shown in fig. 17, the MCU110 supplies power by dc3.3v, the linear voltage-stabilized power chip U12 is used to convert DC12V into dc3.3v, the DC12V input is filtered by a capacitor and then input to the U12 voltage-stabilized power chip, and the voltage-stabilized output is performed by the R52, D2, R54, R55 and Q1 device circuits (since there is a rising process in the power-on instant power output, this circuit is used to start to output dc3.3v after DC12V is greater than 8V is input); d3 is that schottky diode has output steady voltage guard action, and L5 is the afterflow inductance, and C55 and C56 are DC3.3V output filter capacitance.

In a possible implementation manner, the SD card socket 400 and the handle 300 are further included, the SD card socket 400 is disposed on an outer side wall of the casing 100, the SD card socket 400 is electrically connected with the processor, and the handle 300 is disposed on an outer side wall of the casing 100.

In a possible implementation manner, as shown in fig. 14, the train PIS system further includes an adapter plate, one end of the adapter plate is electrically connected to the signal interface of the test box, and the other end of the adapter plate is electrically connected to the signal interface of the train PIS system.

According to another aspect of the present disclosure, there is provided a train operation detection method including: step S100: acquiring a test signal for simulating the actual operation of a train; step S200: sending a test signal to the ACSU broadcast control unit so that the ACSU broadcast control unit controls each PIS device in the train to operate according to the test signal; step S300: and receiving the running state data of each PIS device returned by the ACSU broadcast control unit, and judging the working state of each PIS device according to the running state data.

The obtained test signal for simulating the actual running of the Train is sent to the ACSU broadcast Control unit of the Train, so that the sent test signal can simulate the signal sent by a higher-level Train Control Management System (TCMS) to the ACSU broadcast Control unit of the Train during the actual running of the Train, and the ACSU broadcast Control unit controls each PIS device in the Train to run according to the test signal. And when the PIS equipment runs, the running state data used for representing the running state of the PIS equipment is generated, the running state data of the PIS equipment returned by the ACSU broadcast control unit is received, and the working state of the PIS equipment is judged according to the running state data, so that whether the train terminal equipment runs normally is judged. Compared with the traditional method for testing the PIS of the subway train, the method and the device have the advantages that the coordinated train operation scheduling is not needed, namely, the detection of the PIS of the passenger information system running on the subway train can be realized without the train running, and the detection cost is effectively reduced.

When a test signal for simulating the actual running of the train is obtained, the test signal is realized based on preset train running line information. That is, the test signal sent to the ACSU broadcast control unit is used to characterize the signal sent by the TCMS to the ACSU broadcast control unit when the train is actually in motion.

And, the test signal is constructed based on the ACSU broadcast control unit. Namely, a test signal is constructed according to a communication protocol between the TCMS and the PIS, so that the test signal can simulate a signal sent by the TCMS to the PIS, and further simulate train running.

Further, when a test signal for simulating the actual running of the train is obtained, the test is carried out through different test modes; the test modes include a fully automatic broadcast test and a semi-automatic broadcast test. And then the full-automatic broadcast mode and the semi-automatic broadcast mode of the train are tested.

Furthermore, the test signal is at least one of a train automatic control signal, a station signal, a broadcast signal, a train speed signal or a door opening and closing signal, different types of test signals are selected according to different test modes and sent to the ACSU broadcast control unit, and then a full-automatic broadcast mode and a semi-automatic broadcast mode of the train are tested.

The full-automatic broadcasting mode of the train is called automatic broadcasting because the functions of broadcasting the station of the train PIS, updating the station information, and the like are completely controlled by the TCMS and do not require any operation by the driver. The specific process is as follows: the TCMS sends a data packet to the PIS according to a certain period (for example, 256 ms), and the host ACSU of the PIS analyzes the received data packet according to the agreed communication protocol to obtain signals necessary for functions such as broadcasting station and updating station information, including: ATC (Automatic Train Control) valid/invalid, start station, terminal station, current station, next station side, off-station broadcast trigger, arrival broadcast trigger, distance to next station, train speed, opening and closing signals. The signals are processed by the main control ACSU, converted into data and instructions which can be identified by PIS internal equipment, and issued to each PIS equipment for execution. After receiving the signal, the main control ACSU of the PIS firstly judges whether the ATC is valid, and if the ATC is valid, the other signals are analyzed by signal acquisition; and if the ATC is invalid, not collecting other analyzed signals, and prompting a driver to switch the broadcast mode or automatically switch to other broadcast modes. Signals of a starting station, a terminal station, a current station, a next station opening side and the like are station information display bases of PIS terminal display equipment such as a dynamic map, an LED screen and the like, and when station information contained in data sent by the TCMS changes, the main control ACSU of the PIS can instruct related display equipment to update the station information after analyzing and processing the station information. The main control ACSU calls a pre-recorded broadcasting station voice corresponding entry stored in the ACSU according to the combination of the off-station broadcasting trigger signal and the on-station broadcasting trigger signal with the current station signal and the next station signal, triggers the broadcasting station and instructs the terminal display equipment to switch display information. In some technical schemes, no item of off-station broadcast trigger and on-station broadcast trigger signals exists, the master control ACSU can also calculate the time of off-station/on-station broadcast trigger according to the distance (or train speed) from the next station and a door opening and closing signal, and performs corresponding station reporting broadcast trigger and display information switching by combining the information of the current station and the information of the next station.

The semi-automatic broadcasting mode of the train means that the station reporting triggering condition of the train PIS is given by a hard wire signal of the train, and generally comprises a 5km/h speed signal, a 30km/h speed signal and a door closing signal, and a starting station and a terminal station of the train still need to be manually set by a train driver, so the semi-automatic broadcasting mode is called. Hard-wired signals are a concept with respect to communication signals, which are transmitted only at high/low levels. According to the technical scheme of trains, the current domestic subway train basically adopts 2 hard-line signal modes: a close contact signal (close active/open inactive) or a 110V high active signal (low corresponds to an inactive signal). The specific implementation process comprises the following steps: (1) A train driver manually sets a starting station, a terminal station, a current station and a next station, and the train starts to run; (2) When the speed of the train reaches 5km/h, the vehicle sends a speed effective signal of 5km/h to the PIS, and the PIS triggers the off-station broadcast of the corresponding station in combination with the ID of the next station; (3) When the speed of the train reaches 30km/h, the vehicle sends a 30km/h speed effective signal to the PIS; (4) The train starts to decelerate to be below 30km/h when arriving at the next station, and the vehicle sends a speed invalid signal of 30km/h to the PIS; (5) The train decelerates to below 5km/h, the vehicle sends an invalid signal with the speed of 5km/h to the PIS, the PIS triggers the arrival broadcasting of the corresponding station by combining the ID of the next station, and then the ID of the current station is added with one (namely equal to the ID of the next station); (6) The train stops at the platform, the train door is opened, and the train sends a door closing invalid signal to the PIS; (7) When the train is closed, the train sends a door closing valid signal to the PIS, and the PIS adds one to the ID of the next station. And (3) in a semi-automatic mode, after the step (1) is set by a driver, repeating the steps (2) to (7), and automatically adding one to the current station and the next station of the train PIS every time one round is executed. The validity and invalidity of the speed signal of 5km/h are respectively used as the stop reporting trigger condition of the train, and the trigger condition can be adjusted according to the requirement in the actual operation.

That is to say, when the full-automatic broadcast mode detection or the semi-automatic broadcast mode detection of the train is performed, at least one test signal is acquired, at least one test signal is packaged, and the packaged test signal is sent to the broadcast control unit of the train according to a preset period.

Therefore, when a test signal for simulating the actual running of the train is obtained through the full-automatic broadcast test, the test signal for representing the station information is generated based on the station information of the actual running of the train; and packaging the test signal, and sending the packaged test signal to an ACSU broadcast control unit of the train according to a preset period.

That is to say, when a full-automatic broadcast mode test is performed on a train, a corresponding test signal is selected, and a data packet is sent to the PIS by simulating the TCMS on the main line, that is, according to the same cycle, format and content as the TCMS on the main line, wherein the sent data packet is a train automatic control signal and a station signal which are subjected to packing processing, that is, an ATC signal, a start station signal, a terminal station signal and a current station signal, and is sent to the master control ACSU for analysis and processing according to a preset cycle, and each PIS device is controlled to perform corresponding linkage, so as to detect whether the train PIS automatic broadcast function can normally operate.

Further, when a test signal for simulating the actual operation of the train is acquired through the semi-automatic broadcast test, the method includes: generating a test signal for representing the running speed of the train or opening and closing a door; and packaging the test signal, and sending the packaged test signal to an ACSU broadcast control unit of the train according to a preset period.

That is, when a semi-automatic broadcast mode test is performed on a train, a corresponding test signal is selected, and the actual running condition of the train is simulated by providing a hard line signal necessary for triggering the semi-automatic broadcast. And (4) packaging the train speed signal and the door opening and closing signal, and then sending the packaged train speed signal and the door opening and closing signal to the master control ACSU for analysis and processing, wherein the master control ACSU is used for analyzing and processing the train speed signal and the door opening and closing signal. The train speed signals comprise high-speed signals and low-speed signals, the high-speed signals and the low-speed signals are respectively used for representing a high-speed running state of the train to be tested between two stations and a low-speed running state near the stations, and the door opening and closing signals are used for representing the opening or closing of the doors. And sending the packed high-speed signal, the packed low-speed signal and the door opening and closing signal to a master control ACSU for analysis and processing, and controlling each device of the PIS to perform corresponding linkage so as to detect whether the automatic broadcasting function of the train PIS can normally operate.

Wherein, the preset period is preferably 256ms.

In one possible implementation, the test mode further includes an OCC broadcast test. For the PIS, OCC broadcasting is a service with a vehicle radio station and mainly comprises two parts: (1) The vehicle-mounted radio station controls the PIS to open the OCC broadcast channel and the like through a hard line or a communication signal; (2) And the audio signal transmits the OCC broadcast audio to the PIS for playing. Therefore, when the OCC broadcast test is performed, the broadcast signals are packaged and then sent to the master control ACSU for analysis and processing, wherein the broadcast signals include control signals and audio signals, and the broadcast signals are respectively used for controlling the PIS to perform actions such as opening an OCC broadcast channel and transmitting OCC broadcast audio to the PIS for playing. Therefore, whether the OCC broadcasting function of the train PIS can normally operate or not is detected.

Therefore, by using any of the above methods, after the test signal is sent to the master control acuu, the master control acuu analyzes and processes the test signal, and controls each PIS device located in each car to operate, and each PIS device sends operation state data to the master control acuu according to the operation state of the PIS device, so as to represent the operation state of the corresponding terminal device.

Furthermore, the running state data is judged by receiving the running state data returned by the master control ACSU of the broadcast control unit PIS, so that the running state test of each terminal device of the train is realized.

The running state data is at least one of a broadcasting equipment running state signal, a display equipment running state signal or a vehicle door running state signal, and the broadcasting equipment running state, the display equipment running state and the vehicle door running state are respectively and correspondingly represented.

Further, the operation state data includes a device type code, a device numbering number, a compartment numbering number and a state code of the corresponding terminal device. The device type code is used for representing the type of the corresponding PIS device, the device numbering number is used for representing the number of the corresponding PIS device in all the PIS devices of the same type, the compartment numbering number is used for representing the compartment where the corresponding PIS device is located, and the state code is used for representing the running state of the corresponding PIS device.

For example, the PIS receives the operation state data of each PIS device according to a certain period (for example, 256 ms), analyzes the received state signal according to a communication protocol agreed by the TCMS and the PIS, and the analyzed result is the operation state of each PIS device: each diagnosed PIS device of the PIS occupies an operation state data bit, namely a state code, in the operation state data, wherein the data bit is 0 to indicate that the terminal device operates normally, and the data bit is 1 to indicate that the terminal device fails.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. A test cartridge, comprising:

the control panel, the shell, the display screen and the signal interface;

the control board is arranged inside the shell and comprises a test signal module, a sending module and a receiving module;

the test signal module is configured to obtain a test signal for simulating the actual operation of the train;

the sending module is configured to send the test signal to an ACSU broadcast control unit so that the ACSU broadcast control unit controls each PIS device in the train to operate according to the test signal;

the receiving module is configured to receive the operation state data of each of the PIS devices returned by the acu broadcast control unit, and judge the working state of each of the PIS devices according to the operation state data;

the number of the signal interfaces is more than two, the signal interfaces are respectively and electrically connected with the sending module and the receiving module, and the signal interfaces are arranged on the outer side wall of the shell;

the display screen is electrically connected with the control panel and is arranged on the outer side wall of the shell.

2. The testing cassette of claim 1, wherein the two or more signal interfaces are a hard-wired signal interface, a 485 signal interface, a 232 signal interface, an ethernet interface, an audio signal interface, and a program downloading interface.

3. The test cartridge of claim 2, wherein the test signal module comprises a micro control unit;

the sending module comprises a relay module, and the hard wire signal interface is electrically connected with the micro control unit through the relay module;

the receiving module comprises a 485 conversion module, a 232 conversion module and an Ethernet module, the 485 signal interface is electrically connected with the micro control unit through the 485 conversion module, the 232 signal interface is electrically connected with the micro control unit through the 232 conversion module, and the Ethernet interface is electrically connected with the micro control unit through the Ethernet module.

4. The test cartridge of claim 1, further comprising an indicator light;

the indicating lamp is electrically connected with the micro control unit and is suitable for displaying the on-off state of a power supply or the working state of each signal interface.

5. The test cartridge of claim 1, further comprising an OCC audio signal interface and a program download interface;

the OCC audio signal interface comprises an input interface and an output interface, and the input interface is electrically connected with the output interface through a transformer;

the program downloading interface is electrically connected with the test signal module.

6. A train operation detection method is characterized by comprising the following steps:

acquiring a test signal for simulating the actual operation of a train;

sending the test signal to an ACSU broadcast control unit so that the ACSU broadcast control unit controls each PIS device in the train to operate according to the test signal;

and receiving the running state data of each PIS device returned by the ACSU broadcast control unit, and judging the working state of each PIS device according to the running state data.

7. The method according to claim 6, wherein the obtaining of the test signal for simulating the actual operation of the train is performed based on preset train operation route information.

8. The method according to claim 6, characterized in that the test signals for simulating the actual operation of the train are acquired in different test modes;

the test modes include a fully automatic broadcast test and a semi-automatic broadcast test.

9. The method of claim 8, wherein when obtaining the test signal for simulating actual operation of the train through the fully automatic broadcast test, comprises:

generating the test signal for representing the station information based on the station information of the actual operation of the train;

and packaging the test signal, and sending the packaged test signal to the ACSU broadcast control unit of the train according to a preset period.

10. The method of claim 8, wherein when obtaining the test signal for simulating actual operation of the train through the semi-automatic broadcast test, comprises:

generating the test signal for representing the running speed of the train or opening and closing a door;

and packaging the test signal, and sending the packaged test signal to the ACSU broadcast control unit of the train according to a preset period.

Images