RU2807970C1 - Unit for testing complexes of data collection and recording equipment on traction rolling stock - Google Patents

Abstract

FIELD: measuring equipment.

SUBSTANCE: devices for detecting faults in electrical circuits on traction rolling stock. The unit for testing complexes of data collection and recording equipment on traction rolling stock is distinguished by the fact that it is made in a compact housing, containing on the outside a power button, a connector for a charger, a connector for connecting a cable, a power module board with a battery is installed in the body of the unit, to the board power module with a battery by soldering, a microcontroller, a CAN module, a Bluetooth module are mounted, the microcontroller is soldered in a similar way to the CAN module and the Bluetooth module, the CAN module is connected to a connector in the device body, which, in turn, is connected by the cable to the standard connectors of the complex of data collection and recording devices of the “КПД-3П, КПД-3ПА” series of traction rolling stock, the Bluetooth module wirelessly transmits the received data to the mobile application, the mobile application performs operations for processing, decoding, monitoring and archiving the processed data.

EFFECT: processing, decoding, monitoring and storage of received signals in automatic mode on traction rolling stock equipped with complexes of data collection and recording devices of the “КПД-3П (КПД-3ПА)” series when carrying out both planned and unscheduled types of repairs in loco service depots.

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Description

Field of technology

The invention relates to measuring devices for detecting faults in electrical circuits on traction rolling stock.

State of the art

A digital multimeter with automatic selection of the measurement function is known from the prior art, which contains an input terminal with three contacts for connecting the measurement object to them, a fast analog-to-digital converter, an analysis and processing microprocessor and a display, connected in series, as well as a software-controlled power supply. The power source is configured to supply alternating or direct current to the measurement object. The power supply is connected to the microprocessor and to the first pin of the terminal, and through one resistance to the analog-to-digital converter. The analog-to-digital converter, through a voltage divider with a group of resistances, is connected to the second contact of the terminal and directly to the third contact of the terminal, connected to the second contact of the terminal through another resistance, configured to apply the measured current to it through the second and third contacts of the terminal, the first and second contacts which are designed to connect to them an object from the group: resistor, capacitor, inductor, diode. The microprocessor is configured to repeatedly interrogate the presence, determine the value and polarity of voltage at the terminal contacts, compare with a threshold value and determine the type of measured object from the above group. The microprocessor is equipped with means to control the type of voltage supplied by the power source, control the analog-to-digital converter switch to select the method and measurement range using the appropriate resistance from the voltage divider (RU 2482501, C2, G01R 15/12, publication date 10/27/2010).

The disadvantage of this device is the inability to quickly identify faults in input signals, process them and archive them, as a result, increasing the downtime of locomotives during scheduled and unscheduled types of repairs.

A compact multimeter is known with simultaneous indexing of several physical quantities reflecting the electrical parameters of the research object, including a connecting device, an electronic circuit and at least one display, characterized in that the electronic circuit and display are configured to simultaneously indicate by the multimeter at least three electrical parameters of the research object: electrical resistance, inductance, electrical capacitance, despite the fact that the display has, respectively, at least three information zones, each of which is assigned to indicate its own specific parameter, and the distance between the centers of such zones does not exceed 20 cm (RU 162521, U1, G01R 15/ 00, publication date 06/10/2016).

The disadvantage of this device is the inability to quickly identify faults in input signals, process them and archive them, as a result, increasing the downtime of locomotives during scheduled and unscheduled types of repairs.

A built-in digital multimeter is known that reads over time, stores and transmits measurement results from the power cable of power-consuming equipment, which is characterized by the function of diagnosing the electrical network to electrically-consuming equipment for current and voltage by the presence of a built-in digital ammeter and a built-in digital voltmeter, characterized in that it is built-in in the power supply network of electrical equipment for operation on a permanent basis, in the case of built-in electrical appliances and electrical appliances inside (in the cavity) of the electrical equipment, it does not have its own housing, in the case of being attached to the housing or in the break of an open power supply cable of electrically consumed equipment, it has its own housing (RU 2020107372, A , E01N 8/00, publication date 08/20/2021).

The disadvantage of this device is the inability to embed inside (into the cavity) the circuits being tested, as well as to carry out subsequent analysis of the archived parameters.

The closest analogue is the indicator for monitoring input signals on control units on traction rolling stock. The technical result of the claimed invention is achieved due to the fact that the indicator for monitoring input signals on control units on traction rolling stock, characterized in that it is made in a vandal-proof metal case, in which a standard connector is installed for connection to the connecting panel, to display the presence of input signals coming On the connecting panel, LEDs are installed on the front panel of the device, which indicate the serviceability of the electrical circuit of the complex of data collection and recording devices of the KPD-3P, KPD-3PA series (RU 2788758, C1, G01R 31/50 publication date 01/24/2023).

The disadvantage of the closest analogue is the lack of ability to control CAN line messages, as well as to save accepted parameters in automatic mode.

The technical problem of the claimed invention is to overcome the technical shortcomings inherent in analogues, which leads to the need to create a unit for testing complexes of data collection and recording equipment on traction rolling stock with the ability to monitor various CAN line messages and automatically save received signals from the on-board circuits of the locomotive for subsequent analysis of received signals. data, which not only significantly reduces the time for carrying out planned types of repair of traction rolling stock, but also allows for analysis of identified failures on the KPD-3P, KPD-3PA control units.

Disclosure of the invention

The technical result of the claimed invention is the processing, decoding, monitoring and storage of received signals in automatic mode on traction rolling stock equipped with complexes of data collection and recording devices of the KPD-3P (KPD-3PA) series when carrying out both planned and unscheduled types of repairs in service stations locomotive depots.

The technical result of the claimed invention is achieved due to the fact that the unit for testing complexes of data collection and recording equipment on traction rolling stock is distinguished by the fact that it is made in a compact housing, containing on the outside a power button, a connector for a charger, a connector for connecting a cable, in the body of the unit a power module board with a battery is installed, a microcontroller, a CAN module, a Bluetooth module are soldered to the power module board with a battery, the microcontroller is soldered in a similar way to the CAN module and the Bluetooth module, the CAN module is connected to the connector in the housing device, which, in turn, is connected using cable connectors to the standard connectors of the complex of data collection and recording devices of the KPD-3P, KPD-3PA series of traction rolling stock, the Bluetooth module wirelessly transmits the received data to the mobile application, the mobile application produces operations for processing, decoding, monitoring and archiving of processed data.

Brief description of the device operation scheme

The claimed invention is illustrated by drawings, which show a schematic diagram of the operation, a block diagram, a general and front view of the unit for checking complexes of data collection and recording equipment on traction rolling stock, which shows the following:

Fig. 1 - general view;

Fig. 2 - front view.

Fig. 3 - schematic diagram of operation;

Fig. 4 - block diagram.

The following elements are designated by positions in the drawings:

1 - connecting connector,

2 - cable with connectors,

3 - power button,

4 - battery,

5 - microcontroller,

6 - CAN module,

7 - Bluetooth module,

8 - compact block body,

9 - external power connector,

10 - power module board,

NX1, NXD - UART interface transmission line,

RX1, RXD - receiving line of UART interface,

D2, INT - interrupt contact CAN module,

D10, CS - SS pin of the SPI interface,

D11, SI - MOSI pin of the SPI interface,

D12, SO - MISO pin of the SPI interface,

D13, SCK - SCK contact of the SPI interface,

5V, VCC, VIN - 5V power contact,

GND - common wire (ground),

VAT - battery power contact,

OUT - output contact of stabilized power supply 5 V,

D3, D4, D5, D6, D7, D8, D9, REF, A0, A1, A2, A3, A4, A5, A6, A7, RST, VIN - unused contacts.

Carrying out the invention

The unit for testing complexes of data collection and recording equipment on traction rolling stock is used when carrying out scheduled and unscheduled types of repairs of traction rolling stock equipped with complexes of data collection and recording equipment of the KPD-3P (KPD-3PA) series.

The device works as follows:

Through connecting connector 1 and using a cable with connectors 2, the unit is connected to the standard connector of the complex of data collection and recording equipment on traction rolling stock. By turning on button 3, a stabilized voltage of 5 V is supplied with battery 4 to microcontroller 5, CAN module 6 and Bluetooth module 7. After establishing the operating mode, the CAN module is connected via a Bluetooth wireless communication channel to the device with the installed mobile application. After turning on the general power of the complex of data collection and recording tools on the traction mobile CAN module, it begins receiving messages from the CAN line and transmitting them to the microcontroller via the SPI interface, which, in turn, conducts preliminary analysis and processing of the received messages. After messages are received by the microcontroller, transmission is carried out via the UART interface to the Bluetooth module, which, in turn, provides cyclic transmission of data via the Bluetooth wireless communication channel to the mobile application.

In the event of a discharge of the battery, a connector is installed in the housing of block 8 for connecting an external power supply 9 with a voltage of 5 V. At the time of charging, the power module board 10 provides voltage control and protection of the battery.

The block provides reception, processing, automatic storage and display of the following signals read from the CAN line of the complex: type and number of the locomotive, display of information about identified blocks (BU, BUS, KKM), ALSN lights (Z, ZH, KZH, K, B ), the state of the EPK1 terminal, the state of the EPK2 terminal, the position of the EPK key, indication of the actual speed, display of information about the direction of movement, the state of the “DZ” toggle switch; indication of the on state of the SAUT-CM/485 system; indication of the on state of the TSCBM system; indication of pressure in the brake line (via the first channel); indication of pressure in the main tank (via the second channel); presence of the “IF” signal; track code and period; presence of a “Traction” signal on the locomotive; position of the driver's crane controller.

Claims (1)

The unit for testing complexes of data collection and recording equipment on traction rolling stock is distinguished by the fact that it is made in a compact housing, containing on the outside a power button, a connector for a charger, a connecting connector for connecting a cable, a power module board with a battery is installed in the body of the unit, to the board power module with a battery by soldering, a microcontroller, a CAN module, a Bluetooth module are mounted, the microcontroller is soldered in a similar way to the CAN module and the Bluetooth module, the CAN module is connected to a connector in the device body, which, in turn, is connected the cable of the connectors is connected to the standard connectors of the complex of data collection and recording devices of the KPD-3P, KPD-3PA series of traction rolling stock, the Bluetooth module wirelessly transmits the received data to the mobile application, the mobile application performs operations for processing, decoding, monitoring and archiving the processed data.