RU2487025C1 - Method to monitor technological process of brake testing - Google Patents

Abstract

FIELD: measurement equipment.

SUBSTANCE: method consists in measurement of pressure parameters in a braking line, and the following operations are carried out in series: operator's identity is confirmed, base station time and measurement start time are synchronised. Then integrity of the braking line is monitored in accordance with the technological regulations with input of the produced data into the microcontroller's memory and transfer of all information along a radio channel to the base station in real-time mode. Besides, update of software and microcontroller operation parameters is provided from a keyboard and along a radio channel from the base station. Also braking pressure parameters are measured in the line. Braking pressure parameters may be measured in the tail part of the train and simultaneously in the head part of the train, with simultaneous transfer of data to the base station, besides, measurement selection is also dependent on the technological regulations.

EFFECT: expansion of functional capabilities and increased traffic safety.

1 dwg

Description

The invention relates to measuring equipment and can be used to control equipment of rolling stock of railways, namely to measure the pressure in the brake line during the control of the technological process of testing brakes.

Currently, manometers are used to control the pressure in the brake line, the dials of which visually determine the values of high and low pressures, then these readings are recorded and transmitted to the dispatcher. All this depends on the “human factor”, i.e. from the integrity of the inspectors of the cars. However, the latter sometimes skimp on their responsibilities, performing formal checks, or not at all.

The well-known "Pocket manometer for measuring pressure in a pneumatic tire" model MS-41B company DACOMP GMBH Electronic, see the page on the Internet at: www.dacom.de. This pressure gauge is portable, works as follows. Before each pressure measurement, the user presses a button on this device to turn on and calibrate this measuring device, thereby turning it on, and then the pressure sensor of the device is automatically calibrated.

After calibrating the device, an audible signal sounds and the user proceeds to measure the pressure in the pneumatic tire by connecting the head of the measuring device to the valve of the pneumatic tire (wheel). The user must measure the pressure in the tire for a certain time (5-7 seconds) (and then the measuring device switches off automatically). This meter is not intended for professional work in conditions of frequent measurement, namely in the case of measurements more than 200 times a day (shift).

Another disadvantage of this meter is that the user has to press the power button of the device every time before performing a pressure measurement. At the same time, a lot of working time is wasted waiting for the calibration period, and additional user work is also spent at the click of a button, which, of course, reduces labor productivity.

The next disadvantage of this measuring device is the inability to obtain reliable static information on the process of inflating pneumatic tires, the distribution of the number of swap per shift, day, week, etc., as well as the impossibility of exchanging information between a pressure meter and a higher-level device. It is impossible for the owner of this measuring device to receive objective information about the degree of operation (load) of this device for a certain period of time - a shift, day, week, etc.

Also known is a "Portable threshold electronic pressure gauge for measuring the pressure in the pneumatic tire of a vehicle", see RF patent application No. 2001135001/28, which contains a portable threshold electronic pressure gauge for measuring the pressure in the pneumatic tire of a vehicle, containing a pressure indicator connected to microcontroller, analog-to-digital converter, the output of which is connected to the microcontroller, and the input to the pressure sensor, a power source with a device shutdown control system, In addition to the activation button and to the above-mentioned units of the device, it also contains a threshold element connected to the pressure sensor, a standby mode control device connected to the microcontroller and to the threshold element, which allows the pressure measuring units to be launched when the specified threshold pressure is exceeded, its value will be displayed on the indicator and then switching off the measuring and control circuits of the device, the trigger pulse generator connected to the standby control device will complement It contains a real-time timer clock, flash memory and a wireless port for exchanging information with upstream devices. However, it is also not without flaws. So, for example, in the described form it does not make logical measurements, there is a button in the design that reduces the protection of the internal circuitry of the device in difficult weather conditions, the threshold for the start of measurements is set by a rigidly resistive divider (which requires, at least, disassembling the housing for tuning the threshold of the device and solder divider) - PROTOTYPE.

An object of the invention is to expand the functionality and improve the safety of the rolling stock of railways by performing the following operations:

- personal identification;

- time synchronization with the base station;

- purge control of the brake line;

- integrity control of the entire brake line from the locomotive to the last car;

- control of the narrowing of the brake line (the presence of an ice plug or air leak);

- data transmission over the air to the base station (dispatcher) in real time;

- updating software and work parameters.

To solve this problem, we propose a method for controlling the testing process of brakes of rolling stock of railways, based on measuring the pressure parameters in the brake line, characterized in that the following operations are carried out sequentially: the identity of the operator is identified, the time of the base station and the start of the measurement time are synchronized, then control the integrity of the brake line then the technological regulations with the recording of the received data in the memory of the microcontroller and gears all information on the radio channel to the base station in real time also provides for updating the software and the parameters of the microcontroller from the keyboard and on the radio channel from the base station; measurement of brake pressure parameters in the line can be carried out in the end carriage and simultaneously in the first carriage, with simultaneous data transmission to the base station, and the choice of measurement is also determined by the technological regulations.

Way of working

The device according to the proposed method can be performed and work in two versions:

- the pressure is recorded in the brake line only in the rear of the rolling stock;

- the pressure is recorded in the brake line in the rear and the head of the rolling stock.

The drawing shows a structural diagram of the proposed method, which shows: 1 - brake line, 2 - pneumatic valve, 3 - pressure sensor, 4 - real time clock, 5 - LCD indicator, 6 - microcontroller (MS), 7 - radio modem with a radio channel , 8 - personal identifier, 9 - control panel, 10 - network adapter, 11 - battery, 12 - the device itself.

The device according to this method has the following connections: the brake line 1 is connected to a pneumatic valve 2 and to a pressure sensor 3, the output of which is connected to the first signal input of the MC, the real-time clock 4 is connected to the second input of the MC6 bi-directional data bus, the identifier is 8 to the third input MC6, control panel 9 - with the fourth input of MC6, radio 7 bi-directional bus - with the fifth input of MC6, the first signal output of the MC6 is connected to the control input of the pneumatic valve 2, the second signal output is with the LCD indicator 5. Bus ~ 220 V 50 Hz h Res AC adapter 10 is connected to the battery 11.

The operation of the device is as follows: when performing the technological process of testing the brakes of the rolling stock of the railways, based on the measurement of pressure parameters in the brake line 1, the following operations are performed sequentially: the identity of the operator 8 is identified, the time of the base station and the start of the measurement time are synchronized, then the integrity is monitored brake line 1 then the technological regulations with the entry of the data into the memory of the microcontroller 6 and the transfer of all information uu by radio to the base station in real time, is also provided for updating software and parameters of operation of the microcontroller and the keyboard 6 via radio with a base station. In this case, the measurement of the brake pressure parameters in the line can be made in the rear of the train and at the same time in the head of the train, while transmitting data to the base station, and the choice of measurement is also determined by the technological regulations. Additionally, both devices 12 can be connected to each other and the base station by radio channels, with one of the devices (at the locomotive) can be the master, and the other - the slave.

Claims (1)

A method of controlling the technological process of testing the brakes of rolling stock of railways, based on the measurement of pressure parameters in the brake line, characterized in that the following operations are carried out sequentially: identify the operator’s identity, synchronize the time of the base station and the start of the measurement time, then check the integrity of the brake line by the technological regulations with the recording of the obtained measurement data in the memory of the microcontroller and the transfer of all information via radio to the base station in real time, it is also provided to update the software and operating parameters of the microcontroller from its keyboard or via the radio channel from the base station, also all current information of the monitoring process is displayed on the LCD indicator of the microcontroller and on the indicator of the base station; measurement of brake pressure parameters in the line can be made in the rear of the train and / or the head of the train with the simultaneous transmission of data to the base station, and the choice of measurement is also determined by the technological regulations.