CN110430597A - High-speed rail traction power supply monitors framework and step - Google Patents
High-speed rail traction power supply monitors framework and step Download PDFInfo
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- CN110430597A CN110430597A CN201910609190.XA CN201910609190A CN110430597A CN 110430597 A CN110430597 A CN 110430597A CN 201910609190 A CN201910609190 A CN 201910609190A CN 110430597 A CN110430597 A CN 110430597A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 21
- 230000010365 information processing Effects 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
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- 238000010295 mobile communication Methods 0.000 claims description 4
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- 238000010276 construction Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
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- 230000004044 response Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000009795 derivation Methods 0.000 claims 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/25—Flow control; Congestion control with rate being modified by the source upon detecting a change of network conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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Abstract
A kind of high-speed rail traction power supply monitoring framework and step, it is connect including data microcontroller with memory module, memory module can be flash memory, memory module can include that time-consuming change assert program, assert derivation program and reduce program for transmitting the bit rate of treated the information, here time-consuming change assert that program is time-consuming for the GPRS mobile radio communication that duration range is previously set via total, assert the time-consuming variation of current GPRS mobile radio communication；Assert that derivation program is used to assert that GPRS mobile radio communication occurs hindering the situation of situation by the time-consuming variation of the current GPRS mobile radio communication；In conjunction with other structures and methods effectively prevent in the prior art in face of the small GPRS mobile radio communication of bit rate often occur GPRS mobile radio communication formed not small sluggishness obstructions situation, its be able to modify consumed duration more, unfavorable defect is constituted to the timeliness of treated the information transmitting.
Description
Technical field
The present invention relates to high-speed rail technical fields, also belong to traction power supply technical field, and in particular to a kind of high railway traction confession
Electricity monitoring framework and step.
Background technique
High-speed railway is exactly that Railway Design speed is high, can allow the railway system of train high-speed cruising.First just in the world
The high speed rail system of formula is the Japanese Tokaido the Shinkansen being open to the traffic for 1964, is linked up where Tokyo, Nagoya and Osaka
Japanese metropolitan areas, promote Japan high speed development.Its desin speed is 200km/h, therefore initial stage of high-speed railway
Velocity standard is exactly 200km/h.Later with technological progress, faster, different times country variant is just to high-speed iron for train speed
There is different definition on road, and the detailed technology standard of respective high-speed railway rank, the column being related to are defined according to national situation
Vehicle speed, railway types etc. are just not quite similar.
And traction power supply is carried out to high-speed rail, contact net is essential facility, and contact net infrared measurement of temperature is to check height
Whether each connecting position in iron and contact nets in electrified railways major flow circuit contacts good reliable technical way,
If it exists the phenomenon that poor contact, when there is load current, at this will local pyrexia the case where temperature drift is presented, it is such as too late
When handle, prolonged operation will cause the accidents such as broken string, seriously affect the operation of train.
And to realize contact net current-carrying temperature rise dynamic detection, meet the needs of contact net current-carrying Safety actuality detection, just has
A kind of portable infrared contact net current-carrying safety detection information processing unit, including processor chips and power module, processing
Device chip and power module respectively with wireless communication module, GPS module, image capture module, keyboard input module, display module
Connection.
The characteristics of portable infrared contact net current-carrying safety detection information processing unit, also resides in,
Processor chips are ARM7-LPC2368 microprocessor.Wireless communication module model TR800.GPS module model
For U-BLOX6.Image capture module is the thermal infrared imager with general-purpose interface.Keyboard input module model FPC-10.It is aobvious
Show module model TFT.Power module model LM2596S-ADJ.
The portable infrared contact net current-carrying safety detection information processing unit, by using high speed infrared thermal imaging skill
Art, high speed image lossless storage technology, the modern sophisticated technologies means such as infrared image processing technology and location technology, realize and connect
Net-fault current-carrying temperature rise dynamic detection meets the demand of contact net current-carrying Safety actuality detection, high iron catenary greatly improved
The detection efficiency of current-carrying temperature rise reduces contact net for power supplying current-carrying temperature rise testing staff's labor intensity, can grasp area under control comprehensively
The state of interior high iron catenary current-carrying temperature rise reflects rapidly the safe condition of contact net power supply.
In use, the portable infrared contact net current-carrying safety detection information processing unit is used as monitoring terminal, with infrared
Thermal imaging system acquires information and picture, position of failure point is determined with GPS technology, by adopting by the image of core of microcontroller
Collection compression module compresses the image information of acquisition, treated information can be passed through GPRS mobile radio communication wireless transmission
To monitoring center end, which is also equipped with memory module and power module, guarantees that storing in time for information is normal with device
Operation.The hardware at monitoring center end is the computer with public network IP address.
But will treated information via GPRS mobile radio communication wireless transmission to monitoring center end because GPRS is moved
The bit rate that can be used of communication network oneself frequently occurs variation, if treated the information of transmitting is higher than can use now
Bit rate hinder GPRS mobile radio communication, can not only make that described treated that information is monitored center-side is stagnant
After receive, be unable to satisfy real-time and be monitored center-side and receive, and can also be unfavorable for using on the net in GPRS mobile communication
The performance of other task；If in addition treated the information of transmitting is less than current bit rate, cannot integrally play
The soft hardware performance of GPRS mobile radio communication.
Overcome such unreliability of GPRS mobile communication GPRS mobile radio communication, microcontroller can be to current
The execution of GPRS mobile radio communication is listened to, and is timely relied on and is confirmed current GPRS mobile radio communication the case where GPRS mobile radio communication
The case where hindering, and the bit rate for being used to transmit treated the information is configured, it is allowed described in transmitting with this
Information that treated can be changed by GPRS mobile radio communication bit rate, and luminous energy, which does not overcome, GPRS mobile radio communication occurs
It hinders, it also can the bit rate that can use of whole reasonable utilization.
But whether the intercepting method of pervious GPRS mobile radio communication there is institute via research GPRS mobile radio communication
The loss rate of information of stating that treated assert whether GPRS mobile radio communication hinders, that is, GPRS mobile communication
The loss rate for information that treated described in net appearance is used as GPRS mobile radio communication and the mark hindered occurs；Continuing to transmit in this way
During treated the information, the bit rate for transmitting treated the information can be continued to increase, just in case there is GPRS
The case where loss rate for information that treated described in mobile radio communication, is reduced by the bit for transmitting treated the information
Rate；The intercepting method of such GPRS mobile radio communication is often to execute configuration after occurring hindering to reappear resistance to look to overcoming
Hinder, i.e., are as follows: first GPRS mobile radio communication is constituted and is damaged, after monitoring such damage, side executes finishing；Current such mode
And bit rate for transmitting treated the information can not be reduced in advance, to overcome such damage；It is not small in face of bit rate
GPRS mobile radio communication because it can efficiently construct such damage, concurrent also can efficiently be modified, thus this
Class adverse conditions is controllable；However the GPRS mobile radio communication small in face of bit rate, causing GPRS mobile radio communication institute
Before the loss rate for information of stating that treated, current GPRS mobile radio communication has formed the obstruction situation of a not small sluggishness, such
Sluggishness can usually exceed 20 seconds, be able to modify that consumed duration is more, to the timely of treated the information transmitting
It is unfavorable that property constitutes.
Summary of the invention
To solve the above problems, being effectively prevented the present invention provides a kind of high-speed rail traction power supply monitoring framework and step
Often there is the resistance that GPRS mobile radio communication forms a not small sluggishness in face of the small GPRS mobile radio communication of bit rate in the prior art
Hinder that situation, it is able to modify, and consumed duration is more, it is unfavorable to constitute to the timeliness of treated the information transmitting
Defect.
A kind of high-speed rail traction power supply monitoring framework and step in order to overcome the deficiencies in the prior art, the present invention provides
Solution, specific as follows:
A kind of high-speed rail traction power supply monitoring framework, including portable infrared contact net current-carrying safety detection information processing dress
It sets, which includes portable infrared contact net current-carrying safety detection
The processor chips of information processing unit, the processor chips and wireless communication module；The wireless communication module and GPRS
Mobile radio communication connection, the GPRS mobile radio communication are connect with monitoring center end；
The processor chips are ARM7-LPC2368 microprocessor；Wireless communication module model is as GPRS module
TR800；
The data microcontroller is connect with memory module, and the memory module can be flash memory, the memory module
It can include that time-consuming change assert program, assert derivation program and reduce for transmitting the bit rate of treated the information
Program, time-consuming change assert that program is time-consuming for the GPRS mobile radio communication that duration range is previously set via total here, recognizes
The time-consuming variation of fixed current GPRS mobile radio communication；
It is described to assert that derivation program is used to assert that GPRS is moved by the time-consuming variation of the current GPRS mobile radio communication
Dynamic communication network occurs hindering the situation of situation, also relies on GPRS mobile radio communication appearance that the situation of situation is hindered to assert current
Whether GPRS mobile radio communication forms obstruction；
The bit rate for being used to transmit treated the information reduce program be used to the condition for assert meeting formula 2 it
Border reduces the bit rate for being used to transmit treated the information now.
The identification derivation program can specifically be used to:
Identification formula (2):
Ri>Rj+Z (2)
Whether the condition of meeting formula 2, to assert whether current GPRS mobile radio communication forms obstruction.Here, RiIt is i-th
The variation of the GPRS mobile radio communication time-consuming of a time point, RjThe variation of the GPRS mobile radio communication time-consuming of j-th of time point, described
I time point is current time point, and j is less than i, and j is positive integer, and Z is the critical value that the appearance being previously set hinders and is positive integer；
When the condition for assert meeting formula 2, that is, the variation of GPRS mobile radio communication time-consuming of current time point is higher than
The value of the variation of the GPRS mobile radio communication time-consuming of previous time point j, when being higher than the critical value Z for occurring hindering, it is assumed that going out
Current GPRS mobile radio communication forms obstruction, goes in A-4 and executes；If not, it is assumed that being unsatisfactory for the condition of formula 2, just
GPRS mobile radio communication is not formed when occurring hinders for identification.
Time-consuming change assert that program can specifically be used to:
The time-consuming variation of current GPRS mobile radio communication is derived and obtained via formula (1):
Ri=Si–Si-1+t×Ri-1 (1)
Here, RiFor the variation of the GPRS mobile radio communication time-consuming of i-th of time point, SiIt is mobile logical for the GPRS of i-th of time point
Believe the time-consuming of net, i-th of time point is current time point, and t is the important coefficient being previously set, and t is greater than zero and less than one
Decimal, i is positive integer；
The method of the high-speed rail traction power supply monitoring framework, including being compressed by the Image Acquisition of core of microcontroller
Module carries out compression processing to the image information of acquisition, then will treated Information encapsulation at after infomational message again information report
Text is described wireless via GPRS mobile radio communication by infomational message via GPRS mobile radio communication wireless transmission to monitoring center end
The mode for being transmitted to monitoring center end includes the process of following sequence execution:
A-1: via the time-consuming for the GPRS mobile radio communication for amounting to the duration range being previously set, assert that current GPRS is mobile
The time-consuming variation of communication network；
Here to transmit for treated the information, GPRS mobile radio communication time-consuming is that an infomational message is transferred to
Monitoring center end is risen, the time-consuming between the response message for receiving monitoring center end；Here GPRS mobile radio communication
Time-consuming variation is the GPRS mobile radio communication time-consuming of a time point, and the variation of the GPRS mobile radio communication time-consuming of time point in the past
Situation, as, the time-consuming variation of GPRS mobile radio communication can be configured to a kind of screening operation；
For the GPRS mobile radio communication time-consuming of a pair of of front and back time point of total, it can derive and be obtained now via formula (1)
The time-consuming variation of GPRS mobile radio communication:
Ri=Si–Si-1+t×Ri-1 (1)
Here, RiFor the variation of the GPRS mobile radio communication time-consuming of i-th of time point, SiIt is mobile logical for the GPRS of i-th of time point
Believe the time-consuming of net, i-th of time point is current time point, and t is the important coefficient being previously set, and t is greater than zero and less than one
Decimal, i is positive integer；
A-2: the time-consuming variation by the current GPRS mobile radio communication assert that GPRS mobile radio communication hinders
The situation of situation, the current GPRS mobile radio communication of situation identification for also obstruction situation occur by the GPRS mobile radio communication are
It is not to form obstruction；
It can be the time-consuming of the time-consuming variation and previous time point GPRS mobile radio communication of current GPRS mobile radio communication
It changes and executes comparison to assert, if the time-consuming variation of current GPRS mobile radio communication obtained by deriving recently is than previously amounting to
It is higher and higher, it is assumed that GPRS mobile radio communication forms obstruction out；Or current GPRS mobile radio communication can be monitored
Whether time-consuming changes not less than the critical value being previously set, if indicating that GPRS is moved not less than the critical value being previously set
Dynamic communication network forms obstruction so that the time-consuming variation of GPRS mobile radio communication increases, it is assumed that GPRS is mobile logical out quickly
Letter net forms obstruction；
It can be via identification formula (2):
Ri>Rj+Z (2)
Whether the condition of meeting formula 2, to assert whether current GPRS mobile radio communication forms obstruction.Here, RiIt is i-th
The variation of the GPRS mobile radio communication time-consuming of a time point, RjThe variation of the GPRS mobile radio communication time-consuming of j-th of time point, described
I time point is current time point, and j is less than i, and j is positive integer, and Z is the critical value that the appearance being previously set hinders and is positive integer；
When the condition for assert meeting formula 2, that is, the variation of GPRS mobile radio communication time-consuming of current time point is higher than
The value of the variation of the GPRS mobile radio communication time-consuming of previous time point j, when being higher than the critical value Z for occurring hindering, it is assumed that going out
Current GPRS mobile radio communication forms obstruction, goes in A-4 and executes；If not, it is assumed that being unsatisfactory for the condition of formula 2, just
GPRS mobile radio communication is not formed when occurring hinders for identification.
A-4: when the condition for assert meeting formula 2, reduce the bit rate for being used to transmit treated the information now.
The reduction be used to transmit now the bit rate of treated the information amplitude can be reduce straight it is current
For transmit treated the information bit rate half bit rate, that is, current be used to transmit that described treated
The bit rate of information reduces into previous half；
Or the bit rate of the half of the current bit rate for being used to transmit treated the information and existing can also be compared
When receive treated the information bit rate size, and current be used to transmit treated the information using described
The half of bit rate and bit rate bigger in the bit rate of treated the information is received now and is served as nearest be used to pass
The bit rate for information that treated described in passing；
It or can also include that construction is used to constrain the transmitting for being used to transmit the bit rate of treated the information immediately
Critical value, the size of the transmitting critical value be receive now treated the information bit rate and current GPRS it is mobile logical
The time-consuming product for information that treated described in the transmitting of letter net.
The A-4 can also include: to monitor the quantity of the infomational message not responded and current in data microcontroller
Transmit critical value it is the same under conditions of, just do not transmit subsequent treated the information.
Assert the transfer mode that when the not formed obstruction of GPRS mobile radio communication, can remain current when occurring in A-2 and
Without configuration.
In the formula 2, the value that i and j subtract each other is less than 32.
The invention has the benefit that
The present invention is via the time-consuming variation for assert current GPRS mobile radio communication, by current GPRS mobile radio communication
Time-consuming variation assert that GPRS mobile radio communication occurs hindering the situation of situation, is occurring hindering feelings by GPRS mobile radio communication
When the current GPRS mobile radio communication of the situation identification of condition forms obstruction, reduces and current be used to transmit treated the letter
The bit rate of breath can assert that in advance GPRS mobile radio communication forms obstruction out before GPRS mobile radio communication forms obstruction,
Reach and configuration is executed to the bit rate for being used to transmit treated the information in advance, has overcome and face under small bit rate at present
GPRS mobile radio communication in occur hinder GPRS mobile radio communication finishing reduction period it is big, be unfavorable for after transmitting the processing
Information performance defect, and be used to constrain the transmitting for being used to transmit the bit rate of treated the information immediately via building
Critical value can manipulate the performance of the GPRS mobile radio communication during listening to this.
Detailed description of the invention
Fig. 1 is the mode of the invention by infomational message via GPRS mobile radio communication wireless transmission to monitoring center end
Flow chart.
Specific embodiment
The present invention is described further below in conjunction with drawings and examples.
As shown in Figure 1, at high-speed rail traction power supply monitoring framework, including portable infrared contact net current-carrying safety detection information
Device is managed, which includes portable infrared contact net current-carrying safety
The processor chips and power module of detection information processing unit, the processor chips and power module respectively with wireless communication
Module, GPS module, image capture module, keyboard input module, display module connection；The processor chips are ARM7-
LPC2368 microprocessor；TR800 of the wireless communication module model as GPRS module；GPS module model U-BLOX6.Figure
As acquisition module is the thermal infrared imager with general-purpose interface.Keyboard input module model FPC-10.Display module model
TFT.Power module model LM2596S-ADJ；The portable infrared contact net current-carrying safety detection information processing unit, via
With high speed infrared thermal imaging, high speed image lossless storage technology, modern infrared image processing technology and location technology etc.
Sophisticated technologies means realize contact net current-carrying temperature rise dynamic detection, meet the demand of contact net current-carrying Safety actuality detection,
It is strong to reduce contact net for power supplying current-carrying temperature rise testing staff labour for the detection efficiency that high iron catenary current-carrying temperature rise greatly improved
Degree, can grasp the state of high iron catenary current-carrying temperature rise in area under control comprehensively, reflect the safe condition of contact net power supply rapidly.Make
Used time, the portable infrared contact net current-carrying safety detection information processing unit are acquired as monitoring terminal with thermal infrared imager
Information and picture determine position of failure point with GPS technology, via using microcontroller as the Image Acquisition compression module of core
The image information of acquisition is compressed, can will treated information via GPRS wireless transmission to monitoring center end, the device
It is also equipped with memory module and power module, guarantees the normal operation of the timely storage and device of information.Monitoring center end it is hard
Part is the computer with public network IP address.The data microcontroller is connect with memory module, and the memory module can
It is flash memory, the memory module can include that time-consuming change assert program, assert derivation program and for transmitting the processing
The bit rate reduction program of information afterwards, time-consuming change assert that program is used to that duration range is previously set via total here
GPRS mobile radio communication is time-consuming, assert the time-consuming variation of current GPRS mobile radio communication；The identification derivation program be used to
Time-consuming variation by means of the current GPRS mobile radio communication assert that the situation of situation occurs hindering in GPRS mobile radio communication, also with
Occur hindering whether the current GPRS mobile radio communication of situation identification of situation forms obstruction by means of the GPRS mobile radio communication；
The bit rate for being used to transmit treated the information reduces program and is used to reduce when the condition for assert meeting formula 2
The bit rate for information that treated described in being used to transmit now.
Specifically, the identification derivation program can specifically be used to:
Identification formula (2):
Ri>Rj+Z (2)
Whether the condition of meeting formula 2, to assert whether current GPRS mobile radio communication forms obstruction.Here, RiIt is i-th
The variation of the GPRS mobile radio communication time-consuming of a time point, RjThe variation of the GPRS mobile radio communication time-consuming of j-th of time point, described
I time point is current time point, and j is less than i, and j is positive integer, and Z is the critical value that the appearance being previously set hinders and is positive integer；
When the condition for assert meeting formula 2, that is, the variation of GPRS mobile radio communication time-consuming of current time point is higher than
The value of the variation of the GPRS mobile radio communication time-consuming of previous time point j, when being higher than the critical value Z for occurring hindering, it is assumed that going out
Current GPRS mobile radio communication forms obstruction, goes in A-4 and executes；If not, it is assumed that being unsatisfactory for the condition of formula 2, just
GPRS mobile radio communication is not formed when occurring hinders for identification.
Time-consuming change assert that program can specifically be used to:
The time-consuming variation of current GPRS mobile radio communication is derived and obtained via formula (1):
Ri=Si–Si-1+t×Ri-1 (1)
Here, RiFor the variation of the GPRS mobile radio communication time-consuming of i-th of time point, SiIt is mobile logical for the GPRS of i-th of time point
Believe the time-consuming of net, i-th of time point is current time point, and t is the important coefficient being previously set, and t is greater than zero and less than one
Decimal, i is positive integer；The variation y (1) of not Yan Erming, the GPRS mobile radio communication time-consuming of first time point can be zero, in
It is the variation R of the GPRS mobile radio communication time-consuming of second time point2=S2–S1+t×R1, as, R2=S2–S1Just.
The method of the high-speed rail traction power supply monitoring framework, including being compressed by the Image Acquisition of core of microcontroller
Module carries out compression processing to the image information of acquisition, then will treated Information encapsulation at after infomational message again information report
Text is described wireless via GPRS mobile radio communication by infomational message via GPRS mobile radio communication wireless transmission to monitoring center end
The mode for being transmitted to monitoring center end includes the process of following sequence execution:
A-1: via the time-consuming for the GPRS mobile radio communication for amounting to the duration range being previously set, assert that current GPRS is mobile
The time-consuming variation of communication network；
Specifically, here to transmit for treated the information, GPRS mobile radio communication time-consuming is an information
Message is transferred to monitoring center end and rises, the time-consuming between the response message for receiving monitoring center end；Here GPRS is moved
The time-consuming variation of dynamic communication network is the GPRS mobile radio communication time-consuming of a time point, and the GPRS mobile radio communication of time point in the past
Time-consuming change conditions, as, the time-consuming variation of GPRS mobile radio communication can be configured to a kind of screening operation, here micro-
The change situation of the GPRS mobile radio communication time-consuming that controller MCU can be previously set in duration range via total one is assert
The time-consuming variation of GPRS mobile radio communication when appearance；
Continue specifically, it, can be via formula (1) for the GPRS mobile radio communication time-consuming for amounting to a pair of of front and back time point
Derive and obtain the time-consuming variation of current GPRS mobile radio communication:
Ri=Si–Si-1+t×Ri-1 (1)
Here, RiFor the variation of the GPRS mobile radio communication time-consuming of i-th of time point, SiIt is mobile logical for the GPRS of i-th of time point
Believe the time-consuming of net, i-th of time point is current time point, and t is the important coefficient being previously set, and t is greater than zero and less than one
Decimal, i is positive integer；The variation y (1) of not Yan Erming, the GPRS mobile radio communication time-consuming of first time point can be zero, in
It is the variation R of the GPRS mobile radio communication time-consuming of second time point2=S2–S1+t×R1, as, R2=S2–S1Just.
A-2: the time-consuming variation by the current GPRS mobile radio communication assert that GPRS mobile radio communication hinders
The situation of situation, the current GPRS mobile radio communication of situation identification for also obstruction situation occur by the GPRS mobile radio communication are
It is not to form obstruction；
It specifically, being capable of time-consuming variation current GPRS mobile radio communication and previous time point GPRS mobile radio communication
Time-consuming variation execute comparison to assert, if the time-consuming variation ratio of current GPRS mobile radio communication obtained by deriving recently
What is previously amounted to is higher and higher, it is assumed that GPRS mobile radio communication forms obstruction out；Or current GPRS movement can be monitored
Whether the time-consuming of communication network changes not less than the critical value being previously set, if not less than the critical value being previously set, table
Show that GPRS mobile radio communication forms obstruction so that the time-consuming variation of GPRS mobile radio communication increases, it is assumed that going out quickly
GPRS mobile radio communication forms obstruction；
It then specifically, can be via identification formula (2):
Ri>Rj+Z (2)
Whether the condition of meeting formula 2, to assert whether current GPRS mobile radio communication forms obstruction.Here, RiIt is i-th
The variation of the GPRS mobile radio communication time-consuming of a time point, RjThe variation of the GPRS mobile radio communication time-consuming of j-th of time point, described
I time point is current time point, and j is less than i, and j is positive integer, and Z is the critical value that the appearance being previously set hinders and is positive integer；
When the condition for assert meeting formula 2, that is, the variation of GPRS mobile radio communication time-consuming of current time point is higher than
The value of the variation of the GPRS mobile radio communication time-consuming of previous time point j, when being higher than the critical value Z for occurring hindering, it is assumed that going out
Current GPRS mobile radio communication forms obstruction, goes in A-4 and executes；If not, it is assumed that being unsatisfactory for the condition of formula 2, just
GPRS mobile radio communication is not formed when occurring hinders for identification.
A-4: when the condition for assert meeting formula 2, reduce the bit rate for being used to transmit treated the information now.
Specifically, the amplitude that the reduction is used to transmit now the bit rate of treated the information can be straight
Reduce the bit rate for being used to transmit the bit rate half of treated the information now, that is, it is current be used to transmit it is described
The bit rate for information that treated reduces into previous half；
Or the bit rate of the half of the current bit rate for being used to transmit treated the information and existing can also be compared
When receive treated the information bit rate size, and current be used to transmit treated the information using described
The half of bit rate and bit rate bigger in the bit rate of treated the information is received now and is served as nearest be used to pass
The bit rate for information that treated described in passing；
It or can also include that construction is used to constrain the transmitting for being used to transmit the bit rate of treated the information immediately
Critical value, the size of the transmitting critical value be receive now treated the information bit rate and current GPRS it is mobile logical
The time-consuming product for information that treated described in the transmitting of letter net, the GPRS mobile radio communication during listening to can be manipulated with this
Performance.
In addition, the A-4 can also include: to monitor the quantity for the infomational message not responded in data microcontroller
Under conditions of as current transmitting critical value, subsequent treated the information is not just transmitted.
Assert the transfer mode that when the not formed obstruction of GPRS mobile radio communication, can remain current when occurring in A-2 and
Without configuration.
In the formula 2, the value that i and j subtract each other is less than 32.
In addition, here after reducing the current bit rate for being used to transmit treated the information, via providing here
GPRS mobile radio communication there is the identifying way hindered, by the time-consuming variation identification of the current GPRS mobile radio communication
GPRS mobile radio communication occurs hindering the situation of situation, and when assert that GPRS mobile radio communication does not form obstruction out, can
By previous transfer mode, or according to the bit rate for requiring flexibly to increase transmitting treated the information.
Via the time-consuming variation for assert current GPRS mobile radio communication, by the time-consuming of current GPRS mobile radio communication
It changes and assert that GPRS mobile radio communication occurs hindering the situation of situation, occurring hindering the state of situation by GPRS mobile radio communication
When the current GPRS mobile radio communication of gesture identification forms obstruction, the current ratio for being used to transmit treated the information is reduced
Special rate can assert that in advance GPRS mobile radio communication forms obstruction out, reaches before GPRS mobile radio communication forms obstruction
Configuration is executed to the bit rate for being used to transmit treated the information in advance, overcomes the GPRS faced under small bit rate at present
Occur hindering the period of GPRS mobile radio communication finishing reduction big in mobile radio communication, is unfavorable for transmitting treated the information
The defect of performance, and be used to constrain via building be used to transmit immediately the bit rate of treated the information transmitting it is critical
Value can manipulate the performance of the GPRS mobile radio communication during listening to this.
The present invention is described in a manner of being illustrated with embodiment above, it will be understood by those of skill in the art that this
It is open to be not limited to embodiments described above, in the case of without departing from the scope of the present invention, it can make a variety of changes, change
And replacement.
Claims (8)
1. a kind of high-speed rail traction power supply monitors framework, including portable infrared contact net current-carrying safety detection information processing unit,
The portable infrared contact net current-carrying safety detection information processing unit includes portable infrared contact net current-carrying safety detection letter
The processor chips of processing unit are ceased, the processor chips are connect with wireless communication module；The wireless communication module with
The connection of GPRS mobile radio communication, the GPRS mobile radio communication are connect with monitoring center end；
The processor chips are ARM7-LPC2368 microprocessor；Wireless communication module model is as GPRS module
TR800；
It is characterized in that, the data microcontroller is connect with memory module, the memory module can be flash memory, described
Memory module can include that time-consuming change assert program, assert derivation program and for transmitting the ratio of treated the information
Special rate reduction program, it is time-consuming here to change the GPRS mobile radio communication for assert that program is used to be previously set duration range via total
Time-consuming assert the time-consuming variation of current GPRS mobile radio communication；
It is described to assert that derivation program is used to assert that GPRS is mobile logical by the time-consuming variation of the current GPRS mobile radio communication
Letter net occurs hindering the situation of situation, also occurs hindering the situation of situation to assert current GPRS by the GPRS mobile radio communication
Whether mobile radio communication forms obstruction；
The bit rate for being used to transmit treated the information reduces program and is used to when the condition for assert meeting formula 2,
Reduce the bit rate for being used to transmit treated the information now.
2. high-speed rail traction power supply according to claim 1 monitors framework, which is characterized in that the identification derivation program is specific
It can be used to:
Identification formula (2):
Ri>Rj+Z (2)
Whether the condition of meeting formula 2, to assert whether current GPRS mobile radio communication forms obstruction.Here, RiIt is i-th
The variation of the GPRS mobile radio communication time-consuming of a time point, RjThe variation of the GPRS mobile radio communication time-consuming of j-th of time point, described
I time point is current time point, and j is less than i, and j is positive integer, and Z is the critical value that the appearance being previously set hinders and is positive integer；
Assert meeting formula 2 condition when, that is, current time point GPRS mobile radio communication time-consuming variation be higher than previously
The value of the variation of the GPRS mobile radio communication time-consuming of time point j, when being higher than the critical value Z for occurring hindering, it is assumed that when occurring
GPRS mobile radio communication forms obstruction, goes in A-4 and executes；If not, it is assumed that being unsatisfactory for the condition of formula 2, it is assumed that
GPRS mobile radio communication is not formed when appearance hinders.
3. high-speed rail traction power supply according to claim 1 monitors framework, which is characterized in that time-consuming change assert program
Can specifically it be used to:
The time-consuming variation of current GPRS mobile radio communication is derived and obtained via formula (1):
Ri=Si–Si-1+t×Ri-1 (1)
Here, RiFor the variation of the GPRS mobile radio communication time-consuming of i-th of time point, SiFor the GPRS mobile radio communication of i-th of time point
Time-consuming, i-th of time point is current time point, and t is the important coefficient being previously set, and t is small greater than zero and less than one
Number, i is positive integer.
4. a kind of method of high-speed rail traction power supply monitoring framework, which is characterized in that including using microcontroller as the image of core
Acquire compression module and compression processing carried out to the image information of acquisition, then will treated Information encapsulation at after infomational message again
It is described that infomational message is mobile logical via GPRS infomational message via GPRS mobile radio communication wireless transmission to monitoring center end
The mode at letter net wireless transmission to monitoring center end includes the process that following sequence executes:
A-1: via the time-consuming for the GPRS mobile radio communication for amounting to the duration range being previously set, assert current GPRS mobile communication
The time-consuming variation of net；
Here to transmit for treated the information, GPRS mobile radio communication time-consuming is that an infomational message is transferred to monitoring
Center-side rises, the time-consuming between the response message for receiving monitoring center end；Here the time-consuming of GPRS mobile radio communication
Variation, be that the GPRS mobile radio communication of a time point is time-consuming, and the change conditions of the GPRS mobile radio communication time-consuming of time point in the past,
As, the time-consuming variation of GPRS mobile radio communication can be configured to a kind of screening operation；
For the GPRS mobile radio communication time-consuming of a pair of of front and back time point of total, it can be derived via formula (1) and obtain current GPRS
The time-consuming variation of mobile radio communication:
Ri=Si–Si-1+t×Ri-1 (1)
Here, RiFor the variation of the GPRS mobile radio communication time-consuming of i-th of time point, SiFor the GPRS mobile radio communication of i-th of time point
Time-consuming, i-th of time point is current time point, and t is the important coefficient being previously set, and t is small greater than zero and less than one
Number, i is positive integer；
A-2: the time-consuming variation by the current GPRS mobile radio communication assert that GPRS mobile radio communication occurs hindering situation
Situation, also occur hindering the situation of situation to assert that current GPRS mobile radio communication is by the GPRS mobile radio communication
Form obstruction；
It can be the time-consuming variation of the time-consuming variation and previous time point GPRS mobile radio communication of current GPRS mobile radio communication
Comparison is executed to assert, if the time-consuming variation of current GPRS mobile radio communication obtained by derivation is cured than what is previously amounted to recently
Come it is higher, it is assumed that GPRS mobile radio communication forms obstruction out；Or the time-consuming of current GPRS mobile radio communication can be monitored
Whether change not less than the critical value that is previously set, if indicating that GPRS is mobile logical not less than the critical value being previously set
Letter net forms obstruction so that the time-consuming variation of GPRS mobile radio communication increases, it is assumed that GPRS mobile radio communication out quickly
Form obstruction；
It can be via identification formula (2):
Ri>Rj+Z (2)
Whether the condition of meeting formula 2, to assert whether current GPRS mobile radio communication forms obstruction.Here, RiIt is i-th
The variation of the GPRS mobile radio communication time-consuming of a time point, RjThe variation of the GPRS mobile radio communication time-consuming of j-th of time point, described
I time point is current time point, and j is less than i, and j is positive integer, and Z is the critical value that the appearance being previously set hinders and is positive integer；
Assert meeting formula 2 condition when, that is, current time point GPRS mobile radio communication time-consuming variation be higher than previously
The value of the variation of the GPRS mobile radio communication time-consuming of time point j, when being higher than the critical value Z for occurring hindering, it is assumed that when occurring
GPRS mobile radio communication forms obstruction, goes in A-4 and executes；If not, it is assumed that being unsatisfactory for the condition of formula 2, it is assumed that
GPRS mobile radio communication is not formed when appearance hinders；
A-4: when the condition for assert meeting formula 2, reduce the bit rate for being used to transmit treated the information now.
5. the method for high-speed rail traction power supply monitoring framework according to claim 4, which is characterized in that the reduction is current to be used
Can reduce to be used to transmit treated the letter now straight to transmit the amplitude of the bit rate of treated the information
The bit rate of the bit rate half of breath, that is, the current bit rate for being used to transmit treated the information is reduced at previous
Half；
Or the bit rate of the half of the current bit rate for being used to transmit treated the information can also be compared and current received
By the size of the bit rate of treated the information, and using the current bit for being used to transmit treated the information
The half of rate and bit rate bigger in the bit rate of treated the information is received now and is served as nearest be used to transmit institute
The bit rate for information of stating that treated；
Or can also include construction be used to constrain be used to transmit immediately the bit rate of treated the information transmitting it is critical
Value, the size of the transmitting critical value are to receive the bit rate and current GPRS mobile radio communication of treated the information now
Transmitting described in treated information time-consuming product.
6. the method for high-speed rail traction power supply monitoring framework according to claim 4, which is characterized in that the A-4 can also
It include: to monitor condition of the quantity for the infomational message not responded as current transmitting critical value in data microcontroller
Under, subsequent treated the information is not just transmitted.
7. the method for high-speed rail traction power supply monitoring framework according to claim 4, which is characterized in that assert out in A-2
When the current not formed obstruction of GPRS mobile radio communication, can maintain current transfer mode and without configuring.
8. the method for high-speed rail traction power supply monitoring framework according to claim 4, which is characterized in that in the formula 2, i and j
The value subtracted each other is less than 32.
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| CN111327522A (en) * | 2020-04-17 | 2020-06-23 | 安徽交通职业技术学院 | Test system and method for traction motor |
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