RU190653U1 - DEVICE OF REGISTRATION OF SIGNALS OF AUTOMATIC LOCOMOTIVE SIGNALING - Google Patents

Abstract

The utility model relates to automation means in railway transport, in particular, to automatic locomotive signaling systems and can be used mainly in control systems for encoding signals of automatic locomotive signaling. The device for registering ALS signals contains a processor installed in the case, an analog-to-digital conversion unit connected between the device input intended to connect the device to the locomotive coils of the ALS reception and the first input of the processor connected to the output to the input of the display module, the display elements of which are located on the front housing panels, a CAN transceiver connected between the input / output of the device, designed to connect the locomotive safety device to the CAN bus, and the first output / input ohm processor, the second output / input of which is connected to the input / output of the Ethernet transceiver, other inputs / outputs of which are connected to the output / input of the device intended for connection to the onboard radio modem, and the power supply whose input is connected to the output of the device intended for connection to the power bus locomotive safety devices. The processor software is designed to analyze time-synchronized CAN messages from the locomotive safety device and ALS signals from locomotive coils to detect malfunctions of ALS codes with reference to the digital model of the path and deviations in the operation of ALS devices, and to form separate blocks of CAN data in the internal nonvolatile memory messages, ALS signals, and also about detected failures of ALS codes with reference to the digital model of the path and deviations in the operation of ALS devices and transmission ceiling elements of time to external systems reports identified failures ALS codes and retreats in ALS devices bound them to a digital model of the way. EFFECT: enhanced functionality by taking into account additional data received from the onboard safety system in the algorithm for analyzing signals from the locomotive signaling system, which at the initial stage determines the preliminary cause of failures and deviations, as well as by performing more operational and more accurate determination of coordinates and time occurrence of specified events.

Description

The utility model relates to automation equipment in railway transport, in particular, to automatic locomotive signaling systems and can be used mainly in automated signal locomotive signal coding control systems.

A device for recording signals of automatic locomotive signaling is known, containing a microcontroller installed in the housing, an analog-to-digital conversion unit connected between the first input of the device intended to connect the device to the terminals of the locomotive signal receiving coils of the automatic locomotive signaling system and the first information input of the microcontroller corresponding to the outputs of the connected to the inputs of removable storage media and display unit, the display elements of which Located on the front panel of the case, and the power supply, characterized in that the other information inputs of the microcontroller are connected through the matching unit to the second input of the device designed to connect the locomotive safety device to the CAN bus, and the microcontroller software is configured to register synchronized memory time CAN messages from the locomotive safety device and automatic locomotive signaling signals from locomotive receiving coils (RU 118935 U1, B61L 25/00, 08/10/2012).

The known device provides a record on a removable storage medium time-synchronized messages time-synchronized CAN messages from the locomotive safety device and ALS signals from locomotive coils with their reference to the coordinates of the locomotive location.

A disadvantage of the known technical solution is the lack of a preliminary analysis of time-synchronized CAN messages from the locomotive safety device and ALS signals from locomotive coils to detect malfunctions of ALS codes and deviations in the operation of ALS devices.

The closest analogue is the well-known locomotive alarm recording device, containing locomotive coils for receiving signals of an automatic locomotive alarm, the findings of which are connected through serially connected analog-digital conversion unit and processing unit to the processing unit of the signal quality processing, the corresponding outputs of which are connected to the inputs of the memory block, unit indications and drivers of reports and notifications to alert repair crews, as well as with an external communication module, and one - with an external memory device, with the processing unit connected to the corresponding output of the onboard alarm device (CA 2476210 A1, B61L 3/24, 2003.08.28).

The known device automates the process of detecting failures when receiving real-time signals of automatic locomotive signaling, generating and transmitting relevant reports to automated systems that specialize in accounting for device failures, with data being linked to the coordinates of the locomotive location.

A disadvantage of the known technical solution is the lack of connection to the CAN bus of a locomotive safety device, which does not allow the device to ensure synchronization of its work with events related to changes in operating modes of onboard equipment, changes in the train situation and actions of the locomotive crew, as well as low accuracy of fixation of fixed events associated with the violation of the locomotive signaling, to the scale of the unified system time and the digital model of the path.

The technical result consists in expanding the functionality by analyzing the locomotive signaling signals of additional data received from the onboard security system, which at the initial stage allows determining the preliminary cause of failures and deviations, as well as by performing more operational and more accurate determination of the coordinates and time of occurrence of these events.

The technical result is achieved in that the device for recording signals of an automatic locomotive signaling system contains a processor installed in the housing, an analog-to-digital conversion unit connected between the device input, intended to connect the device to the locomotive coils of receiving signals from the automatic locomotive signaling system, and the first input of the processor connected to the output - to the input of the display module, the display elements of which are located on the front panel of the case, the CAN transceiver is on between the input / output of the device intended for connecting the locomotive safety device to the CAN bus, and the first output / input of the processor, the second output / input of which is connected to the input / output of the Ethernet transceiver, the other inputs / outputs of which are connected to the output / input of the device designed to connect to the onboard radio modem, and the power supply, the input of which is connected to the output of the device intended to connect to the power bus of the locomotive safety devices, while the software process and it is designed to analyze time-synchronized CAN messages from the locomotive safety device and ALS signals from locomotive coils in order to detect malfunctions of ALS codes with reference to the digital model of the path and deviations in the operation of ALS devices, to form separate data blocks about CAN messages in the internal nonvolatile memory, about ALS signals, as well as about detected failures of ALS codes with reference to the digital model of the path and about deviations in the operation of ALS devices and transmission in real time to external systems messages on detected failures of ALS codes and deviations in the operation of ALS devices with their connection to the digital model of the path.

One of the embodiments of the analog-to-digital conversion unit includes series-connected low-pass filter and analog-to-digital converter, while the filter input is the input of the analog-to-digital conversion unit and the output of the analog-to-digital converter is the output of the analog-digital conversion unit.

The CAN transceiver contains a series-connected CAN driver and galvanic isolation, while the input / output of the CAN transceiver is the CAN input / output of the driver and its output / input is the output / input of the electrical isolation.

The display module includes elements for indicating the status and modes of operation of the device.

The USB port of the processor is connected to the output of a device intended for connecting removable storage media in the form of a flash drive.

The SPI or MCI port of the processor is connected to the output of a device intended for connecting removable storage media in the form of a flash card.

Such a connection of the corresponding processor ports to the indicated outputs of the device provides the possibility of parallel data recording to external removable storage media recorded in the energy-information memory of the information processor for its subsequent expert analysis.

The essence of the utility model is illustrated in the drawing, which shows a block diagram of an embodiment of the proposed device for recording signals of automatic locomotive signaling.

The device for recording signals of an automatic locomotive alarm system contains a processor 2 installed in housing 1, an analog-to-digital conversion unit 3 connected between the device input for connecting locomotive coils for receiving ALS signals and the first input of processor 2 connected by the output to the input of indication module 4, display elements of which are located on the front panel of the housing, a CAN transceiver 5, connected between the input / output of the device, designed to be connected to the CAN bus of the locomotive arrangement security features, and the first input / output of processor 2, the second input / output of which is connected to the output / input of the Ethernet transceiver 6, the other inputs / outputs of which are connected to the output / input of the device intended for connection to the onboard radio modem, power supply unit 7, input which is connected to the corresponding output of the device for connecting to the power bus of the locomotive safety device.

The processor software 2 is configured to analyze time-synchronized CAN messages from the locomotive safety device and ALS signals from locomotive coils to detect malfunctions of ALS codes with reference to the digital model of the path and deviations in the operation of ALS devices, forming individual blocks of data on the internal nonvolatile memory CAN messages, ALS signals, and also about detected failures of ALS codes with reference to the digital model of the path and deviations in the operation of ALS devices and transmission in p mode cial time to external systems reports identified failures ALS codes and retreats in ALS devices bound them to a digital model of the way.

Block 3 analog-to-digital conversion includes a series-connected low-pass filter 8 and analog-to-digital converter 9.

In this case, the display module 4 includes three LEDs located on the front panel of the device: green, yellow and red.

The LEDs of the display module 4 determine the following signs of the operation of the device 1:

- green LED when illuminated with a slight flicker - turning on the power supply unit 8, the device is ready for operation;

- the yellow LED in blinking mode indicates the recording of CAN messages in the non-volatile memory of processor 2;

- the red LED in flashing mode signals the recording of ALS signals from the receive coils to the non-volatile memory of the processor 2.

The proposed device detects failures of codes that caused the switching of signals of the locomotive traffic light, and also reveals deviations in the operation of the automatic locomotive signaling, which are determined by the deviation of the parameters of the transmitted signal from the normalized parameters.

The following parameters are used to describe code failures: the place where the failure began, the place where the failure ended, the train parameters, the nature of the failure, the cause of the failure, a fragment of the code signal.

The location of the start of a code failure characterizes the time point, the corresponding coordinate and path number, the site identifier (station / span), the nearest traffic light letter associated with the first code failure after the previous stable and operational condition of the ALS devices. Coordinate should be understood as a set of parameters consisting of geographical coordinates, railway coordinates (km / pc / m) and track circuit identifier.

The end point of the failure characterizes the time point, the corresponding coordinate and path number, the identifier of the section (station / span) recorded after the expiration of 25 seconds from the start point of the codes failure or after the train follows the track circuit where the start point of the codes failure occurred.

The parameters of the train include locomotive, train characteristics, as well as parameters of the train movement on the section, including train number, locomotive number (section), driver's number, train speed, train running mode (traction / coasting), auxiliary equipment status.

The nature of the malfunction is one of the codes listed in the description of the malfunctions; a change in the indications of the indication block of the locomotive safety device.

The cause of failure is probable, the cause of code failures, experimentally established in accordance with the developed algorithm for analyzing the input signal of an ALS.

Software processor 2 provides the ability to identify the following causes of code failures:

- the amplitude of the code current ALS in the rails does not correspond to the normalized index;

- ALS signal on the encoded part of the path is missing;

- time parameters of the first interval of the ALS code do not correspond to the norm;

- there is no possibility to interpret the signal ALS;

- failure of the receiver module;

- failure of the central processor module of the locomotive safety device;

- lack of data in the CAN bus.

In some cases, the cause of the failure may indirectly or directly indicate the source of its occurrence or directly to the faulty device.

Additionally, the processor software 2 records the deviations in the content of the ALS devices as the cause of a potential failure, which in fact did not lead to the appearance of a failure due to the indication indication of the locomotive safety device by the indication unit, which allows detecting and registering the pre-failure condition of the ALS devices.

A code signal fragment characterizes a digital recording of a fragment of an ALS signal received on board with a total duration in the range of 15 seconds to 25 seconds after the place (time) of the start of codes failure and 5 seconds to 5 seconds after the place (time) of the beginning of the retreat.

The device registration signals ALS works as follows.

Before the train starts moving, the corresponding inputs of the automatic locomotive signaling device register are connected to the power bus and the CAN bus of the locomotive safety device, as well as to the onboard radio modem.

At the beginning of the movement of a train equipped with locomotive safety devices involved in the information exchange via the CAN protocol via a controlled route, all transceivers of the local CAN network are initialized. In the automatic mode, the voltage is applied to the input of the unit 7. The power supply unit 7 converts the incoming voltage to its input into the supply voltage of all elements of the device and their electrical isolation from the safety device circuits. At the same time, the display module 4 signals the activation of the ALS signal recorder.

Messages from the CAN bus channels of the local safety device are received via the CAN transceiver 5 to the corresponding input / output of processor 2. CAN messages include data on the current time, movement parameters and train coordinates, recorded driver actions, on-board equipment operating modes and the state of the safety device.

At the same time the signals of the automatic locomotive signaling from the terminals of the locomotive coils arrive at the input of the analog-digital conversion unit 3. The low-pass filter 8 of the block 3 performs pre-filtering, and the ADC 9 converts the analog signal from the receiving coils into a digital code and transmits it to the information input of the processor 2, which records the incoming signals to the internal non-volatile memory.

When recording signals from the output of analog-to-digital conversion unit 3, processor 2 generates RAW audio files, each of which includes ALS signals for a specified period of time. Record audio files in the internal non-volatile memory processor 2 performs in a separate RAW file.

When writing CAN messages to the internal non-volatile memory, processor 2 each CAN message correlates with the audio file and the specific buffer number of the audio file.

Moreover, the processor 2 for each failure or retreat received CAN messages in a separate file CAN messages and writes in the same folder as the audio file. This allows processor 2, when analyzing the received data, to open audio files and view CAN safety device messages in a mutual binding.

Based on the results of the analysis of the received data, the processor generates a file with a card containing information about a specific failure or retreat.

All three files RAW, CAN and the card of failure or retreat processor 2 writes to a separate archive.

The analysis of the signals of the automatic locomotive signaling and the identification of situations with malfunctioning of the ALS codes, processor 2 performs in real time.

In this case, the processor 2 performs the check related to the assignment of a failure to a technologically (functionally) reasonable, that is, due to train movement at a particular section or under certain conditions that adversely affect the reception of the signal and lead to failure of the automatic locomotive signaling.

After registering the place of the end of the failure, the processor 2 writes information about the specified failure codes, including the start point of the failure, the end point of the failure, train parameters, the nature of the failure, the cause of the failure, a fragment of the code signal, into the internal non-volatile memory, and sends it through the Ethernet interface 6 to the input the onboard radio communication module for subsequent transmission to automated systems that specialize in accounting for malfunctions of ALS equipment.

In addition, according to the results of the analysis of CAN messages, processor 2 detects situations with deviations in the content of ALS devices.

For each event associated with the detection of a deviation in the content of ALS devices, processor 2 registers its parameters.

At the same time, for each event related to the detection of deviations in the content of ALS devices, processor 2 generates from the CAN message input data stream an ALS signal recording interval of 5 seconds to 5 seconds after the place (time) of the start of the recorded event, regardless of the possible occurrence of other events. The information about the specified event (place (time) of the beginning and end of the retreat, the reason for the retreat) processor 2 writes to the internal non-volatile memory.

Thus, the internal non-volatile memory of processor 2 in the ROOT directory includes the following subdirectories:

- for continuous recording of the ALS signal and information exchange of the security system;

- for registration of failures, in the form of recording segments of the ALS signal and information exchange on the CAN bus;

- for registration of deviations, in the form of recording segments of the ALS signal and information exchange on the CAN bus.

Information on the identified situations with deviations in the content of the ALS devices is also transmitted via the Ethernet interface 6 to the input of the onboard radio communication module for subsequent transmission to automated systems that specialize in accounting for ALS hardware failures.

When external removable media is connected to the corresponding output of a device connected to a USB or SPI or MCI port of processor 2, information is copied from its internal nonvolatile memory to the removable media.

Thus, the proposed device for registering ALS signals allows receiving, processing, analyzing, recording and further operative transmission of incoming information about the on-board signals of an automatic locomotive signaling system, to ensure synchronization of this data with events related to changes in the on-board equipment operating modes situations and actions of the locomotive crew, to establish the preliminary reasons for the identified failures and deviations in the work of the automatic locomotive crew oh signaling, to provide a fairly accurate binding of the recorded events related to the malfunctioning of the locomotive signaling to the scale of the unified system time and the digital model of the track.

Claims (7)

1. A device for recording signals of an automatic locomotive signaling system, containing a processor installed in the package, an analog-to-digital conversion unit connected between the device input intended for connecting the device to the locomotive coils of receiving signals from an automatic locomotive signaling system and the first input of a processor connected by the output to the input the display module, the display elements of which are located on the front panel of the housing, a CAN transceiver connected between the device input / output, Designed for connecting to the CAN bus of a locomotive safety device, and the first output / input of the processor, the second output / input of which is connected to the input / output of the Ethernet transceiver, other inputs / outputs of which are connected to the output / input of the device intended for connection to the onboard radio modem , and the power supply, the input of which is connected to the output of the device intended to be connected to the power bus of the locomotive safety devices, while the processor software is configured to analyze the syn time-canceled CAN messages from the locomotive safety device and ALS signals from locomotive coils to detect malfunction of the ALS codes with reference to the digital model of the path and deviations in the operation of the ALS devices, the formation in the internal non-volatile memory of individual data blocks on CAN messages, ALS signals, and also about detected failures of ALS codes with reference to the digital model of the path and about deviations in the operation of ALS devices and transmission in real time to external systems of messages about detected ALS codes failures and deviations in the operation of ALS devices with reference to the digital model of the path. 2. The device according to p. 1, characterized in that the analog-to-digital conversion unit includes a serially connected low-pass filter and analog-to-digital converter, while the filter input is the input of the analog-to-digital conversion unit, and the output of the analog-to-digital converter is the output of the block analog-to-digital conversion. 3. The device according to claim 2, characterized in that the CAN transceiver includes serially connected CAN driver and galvanic isolation, while the input / output of the CAN transceiver is the CAN driver's input / output, and its output / input is the output / input of the electrical isolation . 4. The device according to p. 3, characterized in that the display module includes elements indicating the status and modes of operation of the device. 5. The device according to p. 4, characterized in that the USB port of the processor is connected to the third input / output device, designed to connect removable storage media in the form of a flash drive. 6. The device according to p. 4, characterized in that the SPI or MCI port of the processor is connected to the input / output of the device designed to connect removable storage media in the form of a flash card. 7. The device according to claim 5, characterized in that the SPI or MCI port of the processor is connected to the input / output of the device intended for connecting removable storage media in the form of a flash card.

Images