CN107150676A - A kind of railcar braking procedure monitoring device and method - Google Patents
A kind of railcar braking procedure monitoring device and method Download PDFInfo
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- CN107150676A CN107150676A CN201710528243.6A CN201710528243A CN107150676A CN 107150676 A CN107150676 A CN 107150676A CN 201710528243 A CN201710528243 A CN 201710528243A CN 107150676 A CN107150676 A CN 107150676A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of railcar braking procedure monitoring device and method.The device includes first pressure sensor, second pressure sensor, flow sensor, monitoring host computer, first pressure sensor is used for the internal pressure for measuring equalizing reservoir, second pressure sensor is used for the internal pressure for measuring brake pipe, flow sensor is used to measure the air mass flow between relay valve and brake pipe, monitoring host computer determines the parameter in railcar braking procedure for gathering the pressure value that pressure sensor is measured and the flow value that flow sensor is measured according to pressure value and flow value：Air-bled time, air-filled time, supervisor's blast leakage rate and fill wind total flow, and when above-mentioned parameter exceeds setting range, send alarm.The railcar braking procedure monitoring device and method that the present invention is provided can be automatically performed railcar brake pipe is filled, air-bled time, blast leakage rate, the measurement and judgement for always filling wind flow, measurement and judged result it is objective, reliable.
Description
Technical field
The present invention relates to railcar brake field, more particularly to a kind of railcar braking procedure monitoring device and method.
Background technology
Railcar braking ability is well the precondition for ensureing railcar safe operation, if in vehicle track running once
Generation brake force fails, it is possible to cause the serious accident of car crash to occur.Although《Service on buses or trains operation journey of engine drivers in locomotive depot
Sequence standard》The examination wind process of split Chinese herbaceous peony has strict job requirements, but because indivedual crew's business element is not strong, it is half-hearted to stare at
Firmly wind table, does not note row, air-filled time, is ignorant of that also railcar pipe insertion situation will not be judged according to row, air-filled time, serious to lack
(railcar insertion refers to that railcar even hangs lower railway car pipe in the marshalling of many cars to the weary consciousness that railcar pipe insertion is confirmed by trying wind
The state of connection).Therefore, it there is substantial amounts of potential safety hazard during existing examination wind.
The content of the invention
It is an object of the invention to provide a kind of railcar braking procedure monitoring device and method, it can be automatically performed to track
Car brake pipe fills, air-bled time, blast leakage rate, the measurement and judgement for always filling wind flow, measurement and judged result it is objective, can
Lean on.
To achieve the above object, the invention provides following scheme：
A kind of railcar braking procedure monitoring device, the monitoring device includes：First pressure sensor, second pressure are passed
Sensor, flow sensor, monitoring host computer, the first pressure sensor are arranged in the equalizing reservoir of the railcar, described
Second pressure sensor is arranged in the brake pipe of the railcar, and the flow sensor is arranged in the railcar
After between valve and brake pipe；The first pressure sensor is used for the internal pressure for measuring the equalizing reservoir, described second
Pressure sensor is used for the internal pressure for measuring the brake pipe, and the flow sensor is used to measure the relay valve and system
Air mass flow between dynamic supervisor, the monitoring host computer is used to gather the first pressure sensor, the survey of second pressure sensor
The flow value that the pressure value and the flow sensor obtained is measured, and according to being determined the pressure value and the flow value
Air-bled time, air-filled time in railcar braking procedure, supervisor's blast leakage rate and wind total flow is filled, and when the air draft
Between, air-filled time, supervisor blast leakage rate and fill wind total flow beyond setting range when, send alarm.
Optionally, the monitoring device also includes：First display and second display, first display and second
Display is used to show the air-bled time, air-filled time, supervisor's blast leakage rate and fills wind total flow.
Optionally, ARM chip of the monitoring host computer from STM32F4XX series.
Optionally, the first pressure sensor, second pressure sensor, flow sensor use T1443P chips.
Present invention also offers a kind of railcar braking procedure monitoring method, methods described is applied to railcar braking procedure
Monitoring device, the monitoring device includes：First pressure sensor, second pressure sensor, flow sensor, monitoring master
Machine, the first pressure sensor is arranged in the equalizing reservoir of the railcar, and the second pressure sensor is arranged at institute
State in the brake pipe of railcar, the flow sensor is arranged between the relay valve of the railcar and brake pipe；Institute
The internal pressure that first pressure sensor is used to measure the equalizing reservoir is stated, the second pressure sensor is used to measure described
The internal pressure of brake pipe, the flow sensor is used to measure the air mass flow between the relay valve and brake pipe,
The monitoring host computer is used to gather the first pressure sensor, the pressure value that second pressure sensor is measured and the flow
The flow value that sensor is measured, and the air draft in the railcar braking procedure is determined according to the pressure value and the flow value
Time, air-filled time, supervisor's blast leakage rate and fill wind total flow, and when the air-bled time, air-filled time, supervisor's blast are let out
When leakage quantity is with wind total flow is filled beyond setting range, alarm is sent；
The railcar braking procedure monitoring method includes：
During the braking air draft of the railcar, the air-bled time of the railcar is determined；
During the service lap of the railcar, the blast leakage rate of the railcar brake pipe is determined；
During wind is filled in the braking of the railcar, determine the air-filled time of the railcar and fill wind total flow；
Judge the air-bled time whether in the range of standard air-bled time setting；
If it is not, then sending the abnormal alarm of air-bled time；
Judge the leakage rate whether in the range of standard leak amount setting；
If the leakage rate in the range of standard leak amount setting, does not send the alarm of leakage amount abnormity；
Judge the air-filled time whether in the range of standard air-bled time setting；
If the air-filled time sends air-filled time exception not in the range of standard air-bled time setting
Alarm；
Wind total flow is filled whether in the range of the standard fills wind total flow set described in judging；
If described fill wind total flow not in the range of the standard fills wind total flow set, send and fill wind total flow
Abnormal alarm.
Optionally, it is described during the braking air draft of the railcar, the air-bled time of the railcar is determined, specifically
Including：
When the braking air draft process of the railcar starts, timing is carried out to air-bled time；
The pressure value inside the equalizing reservoir is gathered in real time；
The pressure value inside the brake pipe is gathered in real time；
When pressure value inside the equalizing reservoir is equal with the pressure value inside the brake pipe, stop to described
The timing of air-bled time, obtains air-bled time.
Optionally, it is described during the service lap of the railcar, determine the blast of the railcar brake pipe
Leakage rate, is specifically included：
When pressure value inside the equalizing reservoir is equal with the pressure value inside the brake pipe, into the rail
The service lap process of road car；Start to carry out timing to the dwell time；
When starting to carry out timing to the dwell time, the internal pressure value of the brake pipe is gathered, first pressure value is designated as；
When dwell time reaches setting time, the internal pressure value of the brake pipe is gathered, second pressure value is designated as；
The first pressure value is made the difference with the second pressure value, the blast leakage rate of the brake pipe is obtained.
Optionally, the braking in the railcar is filled during wind, is determined the air-filled time of the railcar and is filled
Wind total flow, is specifically included：
When the braking of the railcar, which enters, fills wind process, timing is started to air-filled time；
The pressure value inside the equalizing reservoir is gathered in real time；
The pressure value inside the brake pipe is gathered in real time；
When pressure value inside the equalizing reservoir reaches 600kpa or 500kpa, the flow sensor measurement is gathered
The flow value arrived, is designated as filling wind total flow；
When pressure value inside the equalizing reservoir is equal with the internal pressure value of the brake pipe, stop to described
The timing of air-filled time, obtains air-filled time.
Optionally, the braking in the railcar is filled during wind, is determined the air-filled time of the railcar and is filled
Wind total flow, is specifically included：
When the braking of the railcar, which enters, fills wind process, timing is started to air-filled time；
The pressure value inside the equalizing reservoir is gathered in real time；
The pressure value inside the brake pipe is gathered in real time；
When pressure value inside the equalizing reservoir reaches 600kpa or 500kpa, the flow sensor measurement is gathered
The flow value arrived, is designated as filling wind total flow；
When the pressure oscillation value in railcar supervisor is less than 10kpa, stops the timing to the air-filled time, obtain
To air-filled time.
Optionally, the setting time is one minute.
The specific embodiment provided according to the present invention, the invention discloses following technique effect：The present invention is by track
Pressure sensor is set in the brake pipe of car, equalizing reservoir, flow is set between the relay valve of railcar and brake pipe
Sensor, by the data of the measurement of the sensor, wind, air draft, packing stage are filled to filling wind in braking car braking procedure
Time, air-bled time and always fill wind flow, leakage rate and measure, and judge according to measurement result the braking procedure of railcar
With the presence or absence of potential safety hazard, whole process is objective reliable, it is to avoid in the prior art by artificially checking improper brought rail
Road car accident.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structure composition block diagram of railcar braking procedure monitoring device of the embodiment of the present invention；
Fig. 2 is railcar braking procedure monitoring method schematic flow sheet of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It is an object of the invention to provide a kind of railcar braking procedure monitoring device and method, it can be automatically performed to track
Car brake pipe fills, air-bled time, blast leakage rate, the measurement and judgement for always filling wind flow, measurement and judged result it is objective, can
Lean on.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Fig. 1 is the structure composition block diagram of railcar braking procedure monitoring device of the embodiment of the present invention, as shown in figure 1, this hair
The railcar braking procedure monitoring device of bright offer includes：First pressure sensor 102, second pressure sensor 103, flow are passed
Sensor 104, monitoring host computer 101, the first pressure sensor 102 are arranged in the equalizing reservoir of the railcar, and described
Two pressure sensors 103 are arranged in the brake pipe of the railcar, and the flow sensor 104 is arranged at the railcar
Relay valve and brake pipe between；The first pressure sensor 102 is used for the internal pressure for measuring the equalizing reservoir, institute
The internal pressure that second pressure sensor 103 is used to measure the brake pipe is stated, the flow sensor 104 is used to measure institute
The air mass flow between relay valve and brake pipe is stated, the monitoring host computer 101 is used to gather the first pressure sensor
102nd, the flow value that the pressure value and the flow sensor 104 that second pressure sensor 103 is measured are measured, and according to described
Pressure value and the flow value determine air-bled time in the railcar braking procedure, air-filled time, supervisor's blast leakage rate
With fill wind total flow, and when the air-bled time, air-filled time, supervisor's blast leakage rate and fill wind total flow beyond setting range
When, send alarm.
The monitoring device also includes：First display 109 and second display 105, first display 109 and
Two 105 devices of display are used to show the air-bled time, air-filled time, supervisor's blast leakage rate and fill wind flow.
Communicated between monitoring host computer 101 and two displays using CAN, monitoring host computer 101 and the (track of TAX casees 106
Car tool box) or GYK equipment 1017 (railcar remote maintenance monitoring system) use RS422 buses or RS485 bus communications.
ARM chip of the monitoring host computer 101 from STM32F4XX series.
The first pressure sensor 102, second pressure sensor 103, flow sensor 104 use T1443P cores
Piece.
Railcar power supply 108 is connected with monitoring host computer 101, is that monitoring host computer 101 provides electric energy.
Present invention also offers a kind of railcar braking procedure monitoring method, methods described is applied to railcar braking procedure
Monitoring device, the monitoring device includes：First pressure sensor 102, second pressure sensor 103, flow sensor
104th, monitoring host computer 101, the first pressure sensor 102 is arranged in the equalizing reservoir of the railcar, second pressure
Force snesor 103 is arranged in the brake pipe of the railcar, and the flow sensor 104 is arranged in the railcar
After between valve and brake pipe；The first pressure sensor 102 is used to measuring the internal pressure of the equalizing reservoir, and described the
Two pressure sensors 103 are used to measuring the internal pressure of the brake pipe, the flow sensor 104 be used to measuring it is described in
After the air mass flow between valve and brake pipe, the monitoring host computer 101 is used to gathering the first pressure sensor 102, the
The flow value that the pressure value and the flow sensor 104 that two pressure sensors 103 are measured are measured, and according to the pressure value
The air-bled time in the railcar braking procedure, air-filled time, supervisor's blast leakage rate are determined with the flow value and wind is filled
Total flow, and when the air-bled time, air-filled time, supervisor blast leakage rate and fill wind total flow beyond setting range when, hair
Go out alarm；
Fig. 2 is railcar braking procedure monitoring method schematic flow sheet of the embodiment of the present invention, as shown in Fig. 2 railcar is empty
The monitoring method of gas braking procedure comprises the following steps：
Step 201：During the braking air draft of the railcar, the air-bled time of the railcar is determined；
Step 202：During the service lap of the railcar, the blast leakage of the railcar brake pipe is determined
Amount；
Step 203：During wind is filled in the braking of the railcar, determine the air-filled time of the railcar and to fill wind total
Flow；
Step 204：Judge the air-bled time whether in the range of standard air-bled time setting；
Step 205：If it is not, then sending the abnormal alarm of air-bled time；
Step 206：Judge the leakage rate whether in the range of standard leak amount setting；
Step 207：If the leakage rate in the range of standard leak amount setting, does not send leakage amount abnormity
Alarm；
Step 208：Judge the air-filled time whether in the range of standard air-bled time setting；
Step 209：If the air-filled time is sent when filling wind not in the range of standard air-bled time setting
Between abnormal alarm；
Step 210：Wind total flow is filled whether in the range of the standard fills wind total flow set described in judging；
Step 211：If described fill wind total flow not in the range of the standard fills wind total flow set, send and fill
The abnormal alarm of wind total flow.
Wherein, step 201 is specifically included：
When the braking air draft process of the railcar starts, timing is carried out to air-bled time；
The pressure value inside the equalizing reservoir is gathered in real time；
The pressure value inside the brake pipe is gathered in real time；
When pressure value inside the equalizing reservoir is equal with the pressure value inside the brake pipe, stop to described
The timing of air-bled time, obtains air-bled time.
Step 202 is specifically included：
When pressure value inside the equalizing reservoir is equal with the pressure value inside the brake pipe, into the rail
The service lap process of road car；Start to carry out timing to the dwell time；
When starting to carry out timing to the dwell time, the internal pressure value of the brake pipe is gathered, first pressure value is designated as；
When dwell time reaches setting time, the internal pressure value of the brake pipe is gathered, second pressure value is designated as；
The first pressure value is made the difference with the second pressure value, the blast leakage rate of the brake pipe is obtained.
Step 203 is specifically included：
When the braking of the railcar, which enters, fills wind process, timing is started to air-filled time；
The pressure value inside the equalizing reservoir is gathered in real time；
The pressure value inside the brake pipe is gathered in real time；
When pressure value inside the equalizing reservoir reaches 600kpa or 500kpa, the flow sensor measurement is gathered
The flow value arrived, is designated as filling wind total flow；
When pressure value inside the equalizing reservoir is equal with the internal pressure value of the brake pipe or when the rail
When pressure oscillation value in road car owner's pipe is less than 10kpa, stop the timing to the air-filled time.
The present invention in the brake pipe of railcar, equalizing reservoir by setting pressure sensor, in the relaying of railcar
Flow sensor is set between valve and brake pipe, by the data of the measurement of the sensor, in braking car braking procedure
Wind, air draft, packing stage are filled to air-filled time, air-bled time and always filled wind flow, leakage rate and measured, and according to measurement
As a result judge that the braking procedure of railcar whether there is potential safety hazard, whole process is objective reliable, it is to avoid in the prior art by
In artificially checking improper brought railcar accident.
As another embodiment of the present invention, the present apparatus by detecting equalizing reservoir and railcar main pipe pressure and flow,
Railcar air-bled time and flow, air-filled time and flow, and railcar pipe leakage rate are calculated, is entered according to given with reference to table
Row judges, police instruction is provided when transfiniting.
Railcar air-bled time TP, railcar supervisor's pipe pressure leakage rate PX detection：When the locking key for pressing railcar
During K1 (or K2, K3), in the air draft stage that railcar enters in braking procedure, brake monitoring device is first to equalizing reservoir pressure
PJ0Sampled, then monitoring device sends " decompression instruction ", and air-bled time counter starts timing, in the braking air draft
Cheng Zhong, equalizing reservoir pressure declines first, and relay valve air draft valve port is opened therewith, and railcar main pipe pressure declines therewith, when equal
The reservoir pressure customized pressure (500 or 600kpa) that weighs declines after 50kpa (or 70kpa, 100kpa, 170/140kpa), monitoring device
Send out " pressurize instruction ", hereafter railcar pipe continues air draft, pressure continues to decline, as equalizing reservoir pressure PJ=railcars supervisor
Pressure PL (i.e. PJ-PL=a<When 10kpa), railcar brakes closes relay valve air draft valve port, and air-bled time counter stops
Only timing (now, air-bled time Counter Value is TP)；Meanwhile, pressurize timing starts (railcar main pipe pressure note now
For PL0), continue after one minute, current orbit car owner's pipe pressure of sampling is designated as PL1, by formula PX=PL0-PL1Calculate railcar
Pipe leakage rate PX.
Railcar air-filled time TC detects and filled wind flow MX detection：When pressing the button K4 in railcar brakes
When, railcar is thought that braking procedure enters and filled the wind stage, and monitoring device sends " filling wind alleviation " instruction (i.e. while revocation " decompression
Instruction " and " pressurize instruction "), air-filled time counter starts timing, and equalizing reservoir pressure rises first, relay valve air feed valve port
Open therewith, railcar pipe starts to fill wind, and pressure rises therewith, when equalizing reservoir pressure rises to level pressure (600 or 500kpa)
When, meanwhile, flow sensor between relay valve and brake pipe detection alleviation cycle fills wind total flow MX, due to track vehicle commander
Spend longer (also needing to fill wind to railcar auxiliary reservoir), now railcar pipe continues to fill wind, and pressure rises, as PJ=PL (i.e. PJ-PL
=a<When 10kpa) or detection railcar main pipe pressure undulating value<10kpa, brakes closes relay valve air feed valve port, fills
Wind time counter stops timing (now, air-filled time Counter Value is TC, fills wind total flow for MX).
By above-mentioned detection, the air-filled time of railcar, air-bled time, supervisor's blast leakage rate are obtained and have filled wind and always flow
Amount, fills air draft standard time foundation《Goods/passenger's railcar fills air-bled time with reference to table》It is stored in monitoring device internal memory, fills wind
Normal stream value foundation《Goods/passenger's railcar fills wind flow with reference to table》It is stored in monitoring device internal memory.By filling for detecting
Wind time, air-bled time, supervisor's blast leakage rate and scope as defined in filling wind total flow and standard are compared, if detected
Air-filled time, air-bled time, supervisor's blast leakage rate and fill wind total flow beyond prescribed limit, then send hydropac.
After Static Detection pressurize 1 minute, if railcar supervisor's blast leakage rate is more than 20kpa/m, carries out alarm and carry
Show；Run and monitor railcar supervisor's blast wandering situation in way in real time, enter when railcar supervisor's blast leak volume is more than 20KPA
Row alarm；Braking compression release amount is alarmed with the air-bled time time of being above standard during vehicle track running；Railcar is transported
The remission time time of being above standard is alarmed after braking compression release amount during row；Railcar connects the insertion under extension state in many cars
Wind is filled in experiment and remission time is above standard and alarmed.
The main flow of railcar brake monitoring device that the present invention is provided work is：Test and store locomotive, vehicle system
The volume data → measure fills wind, air draft relative pressure, flow and the data conversion equivalent of time → of dynamic pipe set up database →
The marshalling car type of online acquisition, a number information progress convert → filled with trying braking in lock and operation, alleviation, the pressure and stream of air draft
Amount is compared → improper can alarmed.
Monitoring device obtains locomotive type by RS-422 (or RS-485) interfaces from TAX casees (or railcar GYK equipment)
(lorry/car) and vehicle numerical value.
Display interfaces display content is：
Decompression amount=50KPa (or 70KPa, 140/170KPa)
The air-bled time difference of standard air draft in air-bled time=xxx seconds=xxx seconds=xxx seconds
Air-filled time=xxx seconds standard fills wind=xxx seconds air-filled time difference=xxx seconds
Fill wind flow=xxxm3/ min standards fill wind flow=xxxm3/min
Fill wind flow difference=xxxm3/min
Leakage rate=xxxKPa standard leaks amount≤20KPa leakage rates difference=xxx KPa
Other explanations：
1. decompression instruction output
When pressing K1 (or K2, K3), monitoring device exports 110VDC voltages by relay；
2. pressurize instruction output
After pressurize, which is instructed, to be sent out, monitoring device exports 110VDC voltages by relay；
3. pressure difference a
Pressure difference a=PJ-PL is ＜=10KPa；
4. equalizing reservoir pressure PJ
PJ comes from equalizing reservoir pressure sensor, and pressure sensor is arranged on equalizing reservoir of motor vehicle, when under air draft instruction
After reaching, brake system monitor device is sampled equalizing reservoir pressure PJ0 first, then sends " decompression instruction ", air-bled time is counted
Device starts timing, and equalizing reservoir pressure declines first, and relay valve air draft valve port is opened therewith, and railcar pipe pressure declines therewith,
Pressure sensor can detect the data of the size of equalizing reservoir pressure change in real time.Pressure limit is in 0~950kPa.Rated voltage
For：15V.A/D analog-to-digital conversions export 3~20mA.
5. railcar pipe pressure PL
PL comes from railcar pipe pressure sensor, and pressure sensor is arranged in locomotive brake pipe, and locomotive brake pipe passes through
It is flexible coupling, in the case where locomotive and brake pipe angle cock are opened, railcar Brake pipe pressure change feelings is perceived at any time
Condition, when speed governing is with Brake stop in driver's examination lock or vehicle track running, Brake pipe pressure will change, pressure sensor
The data of the size of its pressure change can be detected in real time.
Pressure limit is in 0~950kPa.Rated voltage is：15V.A/D analog-to-digital conversions export 4~20mA.
6. flow sensors of the MX between relay valve and brake pipe
Flow sensor is installed in series in the middle of locomotive brake gear relay valve and locomotive brake pipe, monitors at any time and records rail
Road car brake pipe fills wind and the flow of air draft, when speed governing is with Brake stop in driver's examination lock or vehicle track running, brake pipe pressure
Power will change, and flow sensor can detect the data on flows of its change in real time.Its pressure limit is in 0~950kPa.Volume
Determining voltage is：15V.A/D analog-to-digital conversions export 3~25mA.
Monitoring main frame is made up of power supply board+master control board card, and master control board card includes：The CPU of master control, the power supply of sensor,
The collection of sensor output signal, various communicating circuits etc..
CPU type selecting：From the ARM chips of STM32F4XX series.
1) more advanced kernel, STM32F4 uses Cortex M4 kernels, band FPU and DSP instruction set, and STM32FI is adopted
It is Cortex M3 kernels, without FPU and DSP instruction set.
2) more resources, STM32F4 possesses at up to 192KB on-chip SRAM, band utilizing camera interface (DCMI), encryption
Manage device (CRYP), USB high speeds OTG, real random number generator, otp memory etc..
3) enhanced peripheral functionality is for identical peripheral hardware part, and STM32F4 has faster analog-to-digital conversion rate, more
Low ADC/DAC operating voltages, 32 bit timing devices, the real-time clock (RTC) with calendar function, I O multiplexing function greatly enhance,
The battery back SRAM and faster USART and SPI communication speed of 4K bytes.
4) higher performance, STM32F4 maximum running frequencies can only arrive 72Mhz up to 168Mhz, STM32FI；STM32F4
Possess the adaptive accelerators in real time of ART, the performance equivalent to the FLASH zero-waiting cycles can be reached, STM32FI then needs to wait
Cycle:STM32F4 FSMC is significantly improved using 32 multiple ahb bus matrixes compared to STM32FI bus access speed.
5) lower power consumption.STM32F40x power consumption is：238uA/Mhz, the wherein STM32F40I of low-power consumption version are more
It is low arrive：L40uA/Mhz, and STM32FI is then up to 421uA/Mhz.
The chip of sensor uses isolated amplifier T1443P chips, if the standard current signal of sensor output is necessary
Plus precision resistance is converted to voltage signal.
Definition on monitoring HPI, table 1 is monitoring main frame GX7 port pinout definition, as shown in table 1：
Table 1：Monitoring device main frame GX7 port pinouts are defined
On monitoring device display, the appearance and size of display is：The long wide * height of *=140*180*65 (mm)；Display
Interface definition is as shown in table 2.
Table 2：Display GX7 port pinouts are defined
The present invention in the brake pipe of railcar, equalizing reservoir by setting pressure sensor, in the relaying of railcar
Flow sensor is set between valve and brake pipe, by the data of the measurement of the sensor, in braking car braking procedure
Wind, air draft, packing stage are filled to air-filled time, air-bled time and always filled wind flow, leakage rate and measured, and according to measurement
As a result judge that the braking procedure of railcar whether there is potential safety hazard, whole process is objective reliable, it is to avoid in the prior art by
In artificially checking improper brought railcar accident.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
The bright method and its core concept for being only intended to help to understand the present invention；Simultaneously for those of ordinary skill in the art, foundation
The thought of the present invention, will change in specific embodiments and applications.In summary, this specification content is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of railcar braking procedure monitoring device, it is characterised in that the monitoring device includes：First pressure sensor,
Second pressure sensor, flow sensor, monitoring host computer, the first pressure sensor are arranged at the balanced wind of the railcar
In cylinder, the second pressure sensor is arranged in the brake pipe of the railcar, and the flow sensor is arranged at described
Between the relay valve of railcar and brake pipe；The first pressure sensor is used for the inside pressure for measuring the equalizing reservoir
Power, the second pressure sensor is used for the internal pressure for measuring the brake pipe, and the flow sensor is used to measure institute
The air mass flow between relay valve and brake pipe is stated, the monitoring host computer is used to gather the first pressure sensor, second
The flow value that the pressure value and the flow sensor that pressure sensor is measured are measured, and according to the pressure value and the stream
Value determines air-bled time in the railcar braking procedure, air-filled time, supervisor's blast leakage rate and fills wind total flow, and
When the air-bled time, air-filled time, supervisor blast leakage rate and fill wind total flow beyond setting range when, send alarm.
2. monitoring device according to claim 1, it is characterised in that the monitoring device also includes：First display and
Second display, first display and second display are used to show the air-bled time, air-filled time, supervisor's blast
Leakage rate and fill wind total flow.
3. monitoring device according to claim 1, it is characterised in that the monitoring host computer is from STM32F4XX series
ARM chips.
4. monitoring device according to claim 1, it is characterised in that the first pressure sensor, second pressure sensing
Device, flow sensor use T1443P chips.
5. a kind of railcar braking procedure monitoring method, it is characterised in that methods described is applied to the prison of railcar braking procedure
Device is surveyed, the monitoring device includes：First pressure sensor, second pressure sensor, flow sensor, monitoring host computer, institute
State first pressure sensor to be arranged in the equalizing reservoir of the railcar, the second pressure sensor is arranged at the track
In the brake pipe of car, the flow sensor is arranged between the relay valve of the railcar and brake pipe；Described first
Pressure sensor is used for the internal pressure for measuring the equalizing reservoir, and the second pressure sensor is used to measure the braking master
The internal pressure of pipe, the flow sensor is used to measure the air mass flow between the relay valve and brake pipe, the prison
Control main frame is used to gather the first pressure sensor, the pressure value that second pressure sensor is measured and the flow sensor
The flow value measured, and determined according to the pressure value and the flow value air-bled time in the railcar braking procedure,
Air-filled time, supervisor's blast leakage rate and fill wind total flow, and when the air-bled time, air-filled time, supervisor's blast leakage rate
During with filling wind total flow beyond setting range, alarm is sent；
The railcar braking procedure monitoring method includes：
During the braking air draft of the railcar, the air-bled time of the railcar is determined；
During the service lap of the railcar, the blast leakage rate of the railcar brake pipe is determined；
During wind is filled in the braking of the railcar, determine the air-filled time of the railcar and fill wind total flow；
Judge the air-bled time whether in the range of standard air-bled time setting；
If it is not, then sending the abnormal alarm of air-bled time；
Judge the leakage rate whether in the range of standard leak amount setting；
If the leakage rate in the range of standard leak amount setting, does not send the alarm of leakage amount abnormity；
Judge the air-filled time whether in the range of standard air-bled time setting；
If the air-filled time sends the abnormal police of air-filled time not in the range of standard air-bled time setting
Report；
Wind total flow is filled whether in the range of the standard fills wind total flow set described in judging；
If described fill wind total flow not in the range of the standard fills wind total flow set, send and fill wind total flow exception
Alarm.
6. monitoring method according to claim 5, it is characterised in that the braking air draft process in the railcar
In, the air-bled time of the railcar is determined, is specifically included：
When the braking air draft process of the railcar starts, timing is carried out to air-bled time；
The pressure value inside the equalizing reservoir is gathered in real time；
The pressure value inside the brake pipe is gathered in real time；
When pressure value inside the equalizing reservoir is equal with the pressure value inside the brake pipe, stop to the air draft
The timing of time, obtains air-bled time.
7. monitoring method according to claim 6, it is characterised in that the service lap process in the railcar
In, the blast leakage rate of the railcar brake pipe is determined, is specifically included：
When pressure value inside the equalizing reservoir is equal with the pressure value inside the brake pipe, into the railcar
Service lap process；Start to carry out timing to the dwell time；
When starting to carry out timing to the dwell time, the internal pressure value of the brake pipe is gathered, first pressure value is designated as；
When dwell time reaches setting time, the internal pressure value of the brake pipe is gathered, second pressure value is designated as；
The first pressure value is made the difference with the second pressure value, the blast leakage rate of the brake pipe is obtained.
8. monitoring method according to claim 5, it is characterised in that wind process is filled in the braking in the railcar
In, determine the air-filled time of the railcar and fill wind total flow, specifically include：
When the braking of the railcar, which enters, fills wind process, timing is started to air-filled time；
The pressure value inside the equalizing reservoir is gathered in real time；
The pressure value inside the brake pipe is gathered in real time；
When pressure value inside the equalizing reservoir reaches 600kpa or 500kpa, gather what the flow sensor was measured
Flow value, is designated as filling wind total flow；
When pressure value inside the equalizing reservoir is equal with the internal pressure value of the brake pipe, stopping fills wind to described
The timing of time, obtains air-filled time.
9. monitoring method according to claim 5, it is characterised in that wind process is filled in the braking in the railcar
In, determine the air-filled time of the railcar and fill wind total flow, specifically include：
When the braking of the railcar, which enters, fills wind process, timing is started to air-filled time；
The pressure value inside the equalizing reservoir is gathered in real time；
The pressure value inside the brake pipe is gathered in real time；
When pressure value inside the equalizing reservoir reaches 600kpa or 500kpa, gather what the flow sensor was measured
Flow value, is designated as filling wind total flow；
When the pressure oscillation value in railcar supervisor is less than 10kpa, stops the timing to the air-filled time, filled
The wind time.
10. monitoring method according to claim 7, it is characterised in that the setting time is one minute.
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| CN201710528243.6A CN107150676B (en) | 2017-07-01 | 2017-07-01 | Device and method for monitoring braking process of rail car |
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| CN113696866A (en) * | 2021-09-29 | 2021-11-26 | 中车大连机车研究所有限公司 | Automatic driving air brake application method of heavy-duty locomotive in long and steep downhill scene |
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| CN112124277A (en) * | 2020-09-27 | 2020-12-25 | 中车唐山机车车辆有限公司 | Rail vehicle brake cylinder pressure control method and device and rail vehicle |
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| CN112622864B (en) * | 2021-01-05 | 2022-02-11 | 株洲中车时代电气股份有限公司 | Train and state detection method and system of train pipe thereof |
| CN113525331A (en) * | 2021-08-09 | 2021-10-22 | 卡斯柯信号有限公司 | Automatic brake pipe detection method and system based on vehicle-mounted equipment |
| CN113525331B (en) * | 2021-08-09 | 2022-07-05 | 卡斯柯信号有限公司 | Automatic brake pipe detection method and system based on vehicle-mounted equipment |
| CN113696866A (en) * | 2021-09-29 | 2021-11-26 | 中车大连机车研究所有限公司 | Automatic driving air brake application method of heavy-duty locomotive in long and steep downhill scene |
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