CN106771636A - Rail transition resistance detecting system and method - Google Patents
Rail transition resistance detecting system and method Download PDFInfo
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- CN106771636A CN106771636A CN201710138881.7A CN201710138881A CN106771636A CN 106771636 A CN106771636 A CN 106771636A CN 201710138881 A CN201710138881 A CN 201710138881A CN 106771636 A CN106771636 A CN 106771636A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source
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Abstract
The embodiment of the present invention provides a kind of rail transition resistance detecting system and method, is related to internet of things field.The system includes：Be arranged between rail and drainage net, for Injection Current between the rail and drainage net so that the rail produce electric signal stabilized power source；It is arranged on rail section to be measured multiple measurement points, the data acquisition equipment for gathering the multiple measurement point power on signal, wherein, the electric signal includes voltage signal and current signal；With data acquisition equipment communication connection, the communication equipment of the multiple measurement point power on signal for uploading the data acquisition equipment collection；It is connected with the communication apparatus communication, the server for being calculated rail transition resistance based on the multiple measurement point power on signal for uploading.The present invention can realize the real-time high-precision measurement of rail transition resistance, so as to the insulating mounting level of accurate evaluation rail.
Description
Technical field
The present invention relates to internet of things field, in particular to a kind of rail transition resistance detecting system and method.
Background technology
Urban track traffic DC traction system stray electrical current may cause rail, railway roadbed reinforcing bar, structure reinforcing bars and underground
There is different degrees of corrosion in metal pipe line etc..The part that rail flows back as train traction, transition electricity of the rail to the earth
Resistance it is relatively low be produce stray electrical current main cause.Existing rail transition resistance value can weigh applying for rail insulation against ground installation
Working medium amount.But, the construction quality of rail track is checked and accepted by track specialty, and power supply profession wouldn't be participated in.Unit in charge of construction and electricity are engaged in
Company because detection method is indefinite, lack special equipment, concrete scheme performance difficulty a series of problems, such as, it is truly unreal
Apply the measurement of this respect.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, rail transition resistance is realized it is an object of the invention to provide one kind
Quick high accuracy measurement rail transition resistance detecting system and method, so as to the insulating mounting level of accurate evaluation rail.
To achieve these goals, the technical scheme that present pre-ferred embodiments are used is as follows：
Present pre-ferred embodiments provide a kind of rail transition resistance detecting system.The system includes：
Be arranged between rail and drainage net, for Injection Current between the rail and drainage net so that the rail
Produce the stabilized power source of electric signal；
Multiple measurement points are arranged on rail section to be measured, and the data for gathering the multiple measurement point power on signal are adopted
Collection equipment, wherein, the electric signal includes voltage signal and current signal；
With data acquisition equipment communication connection, the multiple measurement for uploading the data acquisition equipment collection
The communication equipment of point power on signal；
It is connected with the communication apparatus communication, for being calculated steel based on the multiple measurement point power on signal for uploading
The server of rail transition resistance.
In present pre-ferred embodiments, the data acquisition equipment includes：
Voltage collecting device for gathering the voltage signal of multiple measurement points on rail section to be measured；And
Current collecting device for gathering the current signal of multiple measurement points on rail section to be measured.
In present pre-ferred embodiments, the voltage collecting device includes DC operational amplifier, Analog-digital Converter
Device, processor, memory and the first communications module；
The DC operational amplifier is used to being amplified the voltage signal gathered in test point after treatment is amplified
Voltage signal；
The analog-digital converter is connected with the DC operational amplifier, for by the voltage signal after the amplification
It is converted into complement of two's two's complement data；
The processor is electrically connected with the analog-digital converter and the memory respectively, for described two to be entered
Complement data processed is stored in the memory；
First communications module is electrically connected with the processor and memory respectively, and the processor is used for will be described
The complement of two's two's complement data of memory storage are compiled and obtain Internet of Things data, and the Internet of Things data is converted into voltage
Signal is sent to the communication equipment by first communications module.
In present pre-ferred embodiments, the processor is field programmable gate array.
In present pre-ferred embodiments, the current collecting device includes direct current Hall element and the second communications module；
The direct current Hall element is electrically connected with second communications module, and the direct current Hall element is used for will collection
Current signal the communication equipment is sent to by second communications module.
In present pre-ferred embodiments, the rail transition resistance detecting system also includes：With the server communication
Connection, the user terminal for obtaining the rail transition resistance that the server is calculated.
In present pre-ferred embodiments, the rail transition resistance detecting system also includes power-supply device, the power supply
Equipment is connected with the stabilized power source, the data acquisition equipment and the communication equipment respectively, for being adopted for the data
Collection equipment, the communication equipment and the server provide power supply.
Present pre-ferred embodiments also provide a kind of rail transition resistance detection method, are applied to the detection of rail transition resistance
System.The rail transition resistance detecting system includes：It is logical that data acquisition equipment and the data acquisition equipment are communicated to connect
Letter equipment and the server being connected with the communication apparatus communication, methods described include：
Electric signal on data acquisition equipment collection rail section to be measured in multiple measurement points, and by the electric signal
The communication equipment is sent to, wherein, the electric signal includes current signal and voltage signal；
The communication equipment receives the electric signal, the electric signal is compiled and obtains corresponding Internet of Things data,
And the Internet of Things data is uploaded to the server；
The server is based on the rail transition resistance that the Internet of Things data is calculated rail section to be measured.
In present pre-ferred embodiments, the rail transition resistance detecting system also includes：With the server communication
The user terminal of connection, methods described also includes：
The server responds the request that rail transition resistance is sent to user terminal, the rail transition electricity that will be calculated
Resistance is sent to the user terminal, and is shown on the user terminal.
In present pre-ferred embodiments, it is to be measured that the server is calculated the rail based on the Internet of Things data
The calculating formula of the rail transition resistance of section is as follows：
Wherein, RRT：The rail transition resistance of unit length, unit Ω * km；
I：Stabilized power source Injection Current, unit A；
IRA, IRB：The electric current of measured section outflow, unit A；
IRA, IRBThe electric current of measured section can be calculated by following formula：
Wherein, RAAnd RBIt is end rail longitudinal electrical resistance；UAC、UBDPredetermined length rail respectively on rail section to be measured
Longitudinal voliage, unit mV；
URT：Current injection points rail is to the voltage of drainage net, unit V；
URTA, URTB：The end rail of measured section is to the voltage of drainage net, unit V；
L：The length of measured section, unit km.
In terms of existing technologies, the invention has the advantages that：
Rail transition resistance detecting system and method that the present invention is provided, the rail transition resistance detecting system pass through data
Electric signal on collecting device collection rail section to be measured in multiple measurement points, communication equipment communicates with the data acquisition equipment
Connection, electric signal is uploaded onto the server, and server is calculated rail transition resistance according to the electric signal.Set using above-mentioned
Meter, it is possible to achieve the real-time high-precision measurement to rail transition resistance, saves manpower and materials, so as to assess steel exactly
The insulating mounting level of rail.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
A kind of structured flowchart of the rail transition resistance detecting system that Fig. 1 is provided for present pre-ferred embodiments；
The structured flowchart of the data acquisition equipment that Fig. 2 is provided for present pre-ferred embodiments；
Fig. 3 is the structured flowchart of voltage collecting device in Fig. 2；
Fig. 4 is the structured flowchart of current collecting device in Fig. 2；
Another structured flowchart of the rail transition resistance detecting system that Fig. 5 is provided for present pre-ferred embodiments；
Another structured flowchart of the rail transition resistance detecting system that Fig. 6 is provided for present pre-ferred embodiments；
A kind of schematic flow sheet of the rail transition resistance detection method that Fig. 7 is provided for present pre-ferred embodiments；
The Cleaning Principle schematic diagram of the rail transition resistance that Fig. 8 is provided for present pre-ferred embodiments；
Another schematic flow sheet of the rail transition resistance detection method that Fig. 9 is provided for present pre-ferred embodiments.
Icon：10- rail transition resistance detecting systems；100- data acquisition equipments；200- communication equipments；300- is serviced
Device；400- user terminals；500- power-supply devices；110- voltage collecting devices；120- current collecting devices；111- direct current computings are put
Big device；112- analog-digital converters；113- processors；114- memories；The communications modules of 115- first；122- direct currents Hall unit
Part；The communications modules of 124- second.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, or should
Orientation or position relationship that invention product is usually put when using, are for only for ease of the description present invention and simplify description, without
Be indicate or imply meaning device or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that to be limitation of the present invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve to indicate or implying relative importance.
Additionally, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
Can be to be slightly tilted.It is not the expression structure if " level " refers to only its direction with respect to more level for " vertical "
Must be fully horizontal, and can be to be slightly tilted.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or one
The connection of body ground；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to indirect by intermediary
It is connected, can is two connections of element internal.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.It is following in the case where not conflicting
Feature in embodiment and embodiment can be mutually combined.
Refer to Fig. 1, the structural frames of the rail transition resistance detecting system 10 that Fig. 1 is provided for present pre-ferred embodiments
Figure.In the present embodiment, the rail transition resistance detecting system 10 can be used for the detection to rail transition resistance.The rail
Transition resistance includes, but are not limited to subway, light rail, tramcar rail transition resistance etc..It is understood, therefore, that this reality
The following description for applying example is not specifically limited to the scope of the application of the rail transition resistance detecting system 10, people in the art
The rail transition resistance detecting system 10 that member can be provided using the present embodiment according to actual needs is carried out to rail transition resistance
Detection.
As shown in figure 1, the rail transition resistance detecting system 10 include data acquisition equipment 100, communication equipment 200 with
And server 300.
In the present embodiment, the rail transition resistance detecting system 10 also includes a stabilized power source, and the stabilized power source sets
It is placed between rail and drainage net, for Injection Current between the rail and drainage net, the electric current to be via the rail
So as to produce electric signal, for measuring rail to drainage net transition resistance.It should be noted that, the stabilized power source may also set up
Between rail and the earth, for measuring transition resistance of the rail to the earth.Alternatively, the stabilized power source uses constant big work(
Rate power supply.
Specifically, the data acquisition equipment 100 can be arranged on rail section to be measured, for be measured to the rail
Multiple measurement point power on signal are acquired on section.Wherein, the electric signal can include voltage signal and current signal.It is described
Communication equipment 200 is communicated to connect with the data acquisition equipment 100, the institute for uploading the collection of the data acquisition equipment 100
The electric signal in multiple measurement points is stated to the server 300.Correspondingly, the server 300 is logical with the communication equipment 200
Letter connection, after the electric signal in the multiple measurement points for receiving the collection of the data acquisition equipment 100, based on the electric signal
The rail transition resistance can be calculated.
Further, Fig. 2 is referred to, used as a kind of implementation method, the data acquisition equipment 100 can be included for adopting
Collect on rail section to be measured the voltage signal of multiple measurement points voltage collecting device 110 and for gather the rail with
The current collecting device 120 of the electric signal that the electric current injected between drainage net or between rail and the earth is produced.
The concrete structure of the voltage collecting device 110 refers to Fig. 3.As shown in figure 3, the voltage collecting device 110
Including DC operational amplifier 111, analog-digital converter 112, processor 113, the communications module of memory 114 and first
115。
In the present embodiment, the voltage collecting device 110 can set multiple passages and carry out voltage signal acquisition, used as one
Plant preferred embodiment, the voltage collecting device 110 can set eight passages and carry out the four other electricity of tunnel millivolt level respectively
The voltage signal acquisition of pressure signal acquisition and four roads volt rank.It should be noted that, because the voltage signal for gathering is faint, connect
Get off to need to be amplified treatment by 111 pairs of voltage signals for collecting of DC operational amplifier.
Specifically, in the present embodiment, the DC operational amplifier 111 can be to the voltage signal of collection in test point
It is amplified the voltage signal after treatment is amplified.It should be noted that, the voltage signal after the amplification is by the direct current
Logical operation inside operational amplifier 111, the voltage swing of output is the voltage swing of acquired original.
Referring to Fig. 3, the analog-digital converter 112 is electrically connected with the DC operational amplifier 111, uses
Voltage signal after the DC operational amplifier 111 is amplified is converted into complement of two's two's complement data.113 points of the processor
It is not electrically connected with the analog-digital converter 112 and the memory 114, for the complement of two's two's complement data to be stored in
Into the memory 114.First communications module 115 is electrically connected with the processor 113 and memory 114 respectively,
The complement of two's two's complement data stored in the memory 114 are compiled decoding and obtain Internet of Things data by the processor 113
Afterwards, the Internet of Things data is converted into voltage signal and the communication equipment is sent to by first communications module 115
200。
In the present embodiment, above-mentioned processor 113 can be a kind of IC chip, the disposal ability with signal.On
The processor 113 stated can be general processor, including central processing unit (Central Processing Unit, CPU), net
Network processor (Network Processor, NP) etc..Can also be digital signal processor (DSP)), application specific integrated circuit
(ASIC), field programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic,
Discrete hardware components.Can realize or perform disclosed each method in the embodiment of the present invention, step and logic diagram.It is general
Processor can be microprocessor or the processor can also be any conventional processor etc..
As one kind preferred embodiment, the processor 113 can use field programmable gate array (FPGA).
In the present embodiment, above-mentioned memory 114 may be, but not limited to, random access memory (Random Access
Memory, RAM), read-only storage (Read Only Memory, ROM), programmable read only memory (Programmable
Read-Only Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only
Memory, EPROM), electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only
Memory, EEPROM) etc..
As one kind preferred embodiment, the memory 114 can use random access memory (Random
Access Memory, RAM), more specifically, static RAM (Static Random Access can be used
Memory, SRAM).Benefit using static RAM is that static RAM is a kind of with static
The internal memory of access facility, it is not necessary to which refresh circuit can preserve the complement of two's two's complement in the data of storage inside, i.e. the present embodiment
Data.
In the present embodiment, first communications module 115 can use ethernet communication mode and the communication equipment 200
Communicated with realizing data transfer.There is the advantages such as configuration is easy, connection speed is high using ethernet communication mode, to realize
The stability and high efficiency transmission of data.
Further, the present embodiment also needs to gather the current signal of multiple measurement points on rail section to be measured,
Fig. 4 is specifically referred to, the current collecting device 120 includes the communications module 124 of direct current Hall element 122 and second.It is described straight
Stream Hall element 122 is determined by institute by the Hall effect produced between metallic conductor (rail i.e. in the present embodiment)
State the current signal of rail section to be measured.Specifically, due to there is magnetic field around the rail of energization, the electricity in its size and rail
Stream is directly proportional, and based on this, the direct current Hall element 122 in the present embodiment measures the magnetic field, so that it is determined that the electricity for passing through rail
Stream signal.The current signal is sent to described by the second communications module 124 being electrically connected with the direct current Hall element 122
Communication equipment 200.It should be noted that, in other embodiments, the direct current Hall element 122 and it is described second communication mould
Dc chopper can also be set between group 124, its effect is that the voltage signal of the DC current that will be collected is adjusted, with
Just original voltage signal is more accurately collected.
Used as a kind of implementation method, the current signal of the collection of the current collecting device 120 may range from -350A-
350A。
In the present embodiment, used as a kind of implementation method, the communication equipment 200 can be the Internet of Things for supporting 3G/4G communications
Net service interface device.
Fig. 5 is referred to, the rail transition resistance detecting system 10 can also include user terminal 400.User's end
End 400 communicates to connect with the server 300, realizes obtaining the server 300 in real time by accessing the server 300
The rail transition resistance being calculated.It should be noted that in other embodiments, the server 300 can include one
Database, the database purchase has the current signal and voltage signal not in the same time that communication equipment 200 sends, therefore user's end
End 400 can also get steel in real time except getting rail transition resistance not in the same time in real time from the server 300
The corresponding temporal information of rail transition resistance, current signal and voltage signal.
In the present embodiment, above-mentioned user terminal 400 can be the terminal device that can arbitrarily access the server 300,
For example, the user terminal 400 may be, but not limited to, smart mobile phone, PC (Personal Computer, PC), put down
Plate computer, personal digital assistant (Personal Digital Assistant, PDA), mobile internet surfing equipment (Mobile
Internet Device, MID) etc..
Further, Fig. 6 is referred to, the rail transition resistance detecting system 10 can also include power-supply device 500.Institute
Power-supply device 500 is stated electrically to connect with the data acquisition equipment 100, the communication equipment 200 and the server 300 respectively
Connect, for providing power supply for the data acquisition equipment 100, the communication equipment 200 and the server 300.
Need persistently may be used in view of the data acquisition equipment 100, the communication equipment 200 and the server 300
By ground operation, used as a kind of implementation method, above-mentioned power-supply device 500 can use high-power DC power supply equipment.
Refer to Fig. 7, a kind of schematic flow sheet of the rail transition resistance detection method that Fig. 7 is provided for the present embodiment.Should
Method can apply to rail transition resistance detecting system 10, and the rail transition resistance detecting system 10 can include：Data
Communication equipment 200 and lead to the communication equipment 200 that collecting device 100 and the data acquisition equipment 100 are communicated to connect
Believe the server 300 of connection.It should be noted that the rail transition resistance detection method that the present invention is provided is not with Fig. 7 and following
Described particular order is limitation.The idiographic flow of each step that methods described includes is as follows：
Step S110, the electric signal on the collection rail section to be measured of the data acquisition equipment 100 in multiple measurement points, and
The electric signal is sent to the communication equipment 200.
In the present embodiment, the electricity on the rail section to be measured that the data acquisition equipment 100 is collected in multiple measurement points
Signal can include current signal and voltage signal.Wherein, multiple measurement points can be in advance on rail section to be measured
Multiple sampled points of setting.
Step S120, the communication equipment 200 receives the electric signal, the electric signal is compiled and obtains corresponding
Internet of Things data, and the Internet of Things data is uploaded to the server 300.
Step S130, the server 300 is based on the steel that the Internet of Things data is calculated rail section to be measured
Rail transition resistance.
The technical scheme of each step is briefly described to be included to the above method with reference to specific example.Should be noted
, below describe merely illustrative, the technical scheme to the embodiment of the present invention is not imposed any restrictions.
Refer to Fig. 8, the Cleaning Principle schematic diagram of the rail transition resistance that Fig. 8 is provided for present pre-ferred embodiments.
As shown in figure 8, it is L to set rail section length to be measured, DC current I is injected in rail section to be measured, it is interval
Outer outflow electric current is IRA, IRB, then IRA, IRBThe end current to rail section to be measured can be calculated by following formula：
Wherein, wherein, RAAnd RBIt is end rail longitudinal electrical resistance；UAC、UBDSection rail two ends one respectively to be measured are fixed
The longitudinal voliage of the rail of length (for example, 10m), unit mV.
Used as a kind of implementation method, the rail of above-mentioned regular length can be using rail length-measuring appliance (for example, laser
Range unit) carry out accurate measurement.
In addition, as one kind preferred embodiment, when voltage is measured, the magnitude of voltage of measuring circuit disconnection can be distinguished
UonMagnitude of voltage U during with closing of circuitoff.By formula U=Uon-UoffEliminate the interference of noise.
The server 300 is based on the rail transition resistance that the Internet of Things data is calculated rail section to be measured
Calculating formula it is as follows：
Wherein：
RRT：The rail transition resistance of unit length, unit Ω * km；
I：Current source Injection Current, unit A；
IRA, IRB:The end current of measured section, unit A；
URT：Current injection points rail is to the voltage of drainage net, unit V；
URTA, URTB：The end rail of measured section is to the voltage of drainage net, unit V；
L：The length of measured section, unit km.
Fig. 9 is referred to, the rail transition resistance detecting system 10 can also include：With the communication link of the server 300
The user terminal 400 for connecing.Methods described can also include：
Step S140, the server 300 responds the request that rail transition resistance is sent to user terminal 400, will calculate
The rail transition resistance for obtaining is sent to the user terminal 400, and is shown on the user terminal 400.
In the present embodiment, when user terminal 400 need to check rail transition resistance in rail section to be measured, to the server
300 send the transition resistance request of acquisition rail, after the server 300 receives the request of the user terminal 400 transmission, to institute
State the rail transition resistance value that user terminal 400 sends each correspondence moment rail section to be measured.The user terminal 400 is connecing
After receiving the rail transition resistance value, the rail transition resistance value is shown.It should be noted that in other implementations
In mode, the user terminal 400 can also send to other terminal devices and receive rail transition resistance value, so as to multiple
Terminal device gets rail transition resistance value.Certainly, other terminal devices directly access server 300 can also get
Rail transition resistance value.
In sum, the present invention is provided rail transition resistance detecting system 10 and rail travel traffic system, the rail
Transition resistance detecting system 10 gathers the electric signal on rail section to be measured in multiple measurement points by data acquisition equipment 100,
Communication equipment 200 is communicated to connect with the data acquisition equipment 100, and electric signal is uploaded onto the server 300, server 300
Rail transition resistance is calculated according to the electric signal.Using above-mentioned design, it is possible to achieve to the real-time height of rail transition resistance
Precision measure, saves manpower and materials, so as to assess the insulating mounting level of rail exactly.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.
Claims (10)
1. a kind of rail transition resistance detecting system, it is characterised in that the system includes：
Be arranged between rail and drainage net, for Injection Current between the rail and drainage net so that the rail produce
The stabilized power source of electric signal；
Multiple measurement points are arranged on rail section to be measured, and the data acquisition for gathering the multiple measurement point power on signal sets
It is standby, wherein, the electric signal includes voltage signal and current signal；
With data acquisition equipment communication connection, the multiple measurement point for uploading the data acquisition equipment collection
The communication equipment of electric signal；
It is connected with the communication apparatus communication, for being calculated rail mistake based on the multiple measurement point power on signal for uploading
Cross the server of resistance.
2. rail transition resistance detecting system according to claim 1, it is characterised in that the data acquisition equipment bag
Include：
Voltage collecting device for gathering the voltage signal of multiple measurement points on rail section to be measured；And
Current collecting device for gathering the current signal of multiple measurement points on rail section to be measured.
3. rail transition resistance detecting system according to claim 2, it is characterised in that the voltage collecting device includes straight
Stream operational amplifier, analog-digital converter, processor, memory and the first communications module；
The DC operational amplifier is used to be amplified the voltage signal gathered in test point the electricity after treatment is amplified
Pressure signal；
The analog-digital converter is connected with the DC operational amplifier, for the voltage signal after the amplification to be changed
Into complement of two's two's complement data；
The processor is electrically connected with the analog-digital converter and the memory respectively, for the binary system to be mended
Code data are stored in the memory；
First communications module is electrically connected with the processor and memory respectively, and the processor is used for the storage
The complement of two's two's complement data of device storage are compiled and obtain Internet of Things data, and the Internet of Things data is converted into voltage signal
The communication equipment is sent to by first communications module.
4. rail transition resistance detecting system according to claim 3, it is characterised in that the processor can be compiled for scene
Journey gate array.
5. rail transition resistance detecting system according to claim 2, it is characterised in that the current collecting device includes
Direct current Hall element and the second communications module；
The direct current Hall element is electrically connected with second communications module, and the direct current Hall element is used for the electricity that will be gathered
Stream signal is sent to the communication equipment by second communications module.
6. rail transition resistance detecting system according to claim 1, it is characterised in that the rail transition resistance detection
System also includes：It is connected with the server communication, the use for obtaining the rail transition resistance that the server is calculated
Family terminal.
7. rail transition resistance detecting system according to claim 1, it is characterised in that the rail transition resistance detection
System also includes power-supply device, the power-supply device respectively with the stabilized power source, the data acquisition equipment and described logical
Letter equipment is connected, for providing power supply for the data acquisition equipment, the communication equipment and the server.
8. a kind of rail transition resistance detection method, is applied to rail transition resistance detecting system, it is characterised in that the rail
Transition resistance detecting system includes：Data acquisition equipment and the data acquisition equipment communication connection communication equipment and with
The server of the communication apparatus communication connection, methods described includes：
Electric signal on the data acquisition equipment collection rail section to be measured in multiple measurement points, and the electric signal is sent
To the communication equipment, wherein, the electric signal includes current signal and voltage signal；
The communication equipment receives the electric signal, the electric signal is compiled and obtains corresponding Internet of Things data, and will
The Internet of Things data is uploaded to the server；
The server is based on the rail transition resistance that the Internet of Things data is calculated rail section to be measured.
9. rail transition resistance detection method according to claim 8, it is characterised in that the rail transition resistance detection
System also includes：The user terminal being connected with the server communication, methods described also includes：
The server responds the request that rail transition resistance is sent to user terminal, the rail transition resistance hair that will be calculated
The user terminal is given, and is shown on the user terminal.
10. rail transition resistance detection method according to claim 8, it is characterised in that the server is based on described
The calculating formula that Internet of Things data is calculated the rail transition resistance of rail section to be measured is as follows：
Wherein, RRT：The rail transition resistance of unit length, unit Ω * km；
I：Stabilized power source Injection Current, unit A；
IRA, IRB：The electric current of measured section outflow, unit A；
IRA, IRBThe electric current of measured section can be calculated by following formula：
Wherein, RAAnd RBIt is end rail longitudinal electrical resistance；UAC、UBDRespectively rail predetermined length rail in section two ends to be measured is vertical
To voltage, unit mV；
URT：Current injection points rail is to the voltage of drainage net, unit V；
URTA, URTB：The end rail of measured section is to the voltage of drainage net, unit V；
L：The length of measured section, unit km.
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| CN201710138881.7A CN106771636A (en) | 2017-03-09 | 2017-03-09 | Rail transition resistance detecting system and method |
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| CN107765098A (en) * | 2017-11-23 | 2018-03-06 | 上海远彭电气技术咨询服务有限公司 | A kind of urban track traffic track longitudinal electrical resistance test device and method |
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