CN107016171A - A kind of optimization method of unilateral axle count sensor induction coil space configuration - Google Patents
A kind of optimization method of unilateral axle count sensor induction coil space configuration Download PDFInfo
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- CN107016171A CN107016171A CN201710149846.5A CN201710149846A CN107016171A CN 107016171 A CN107016171 A CN 107016171A CN 201710149846 A CN201710149846 A CN 201710149846A CN 107016171 A CN107016171 A CN 107016171A
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- count sensor
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- electromotive force
- axle count
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- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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Abstract
The present invention discloses a kind of optimization method of unilateral axle count sensor induction coil space configuration, including S1：Finite element modeling is carried out to unilateral axle count sensor, train wheel and rail；S2：Make the induction coil angle in the unilateral axle count sensor, the parameter of distance takes different numerical value to be emulated respectively between vertical range and the web of the rail, calculates the induced electromotive force under different value conditions；Wherein described induction coil angle refers to the angle between induction coil and horizontal plane in the unilateral axle count sensor, the vertical range refers to that distance between the height between rail bottom surface described in the centre distance of the unilateral axle count sensor, the web of the rail refers to the vertical range of the web of the rail of rail described in the centre distance of the unilateral axle count sensor；S3：According to simulation result, the span of the parameter when amplitude change rate of the induced electromotive force is larger is determined；S4：The installation site of unilateral axle count sensor is optimized according to the legal optimization formula of set of weights.
Description
Technical field
The present invention relates to train supervision field, specifically a kind of unilateral axle count sensor sense based on combined weighted method
The optimization method for answering coil space to configure.
Background technology
With the development of railway cause, railway transportation also has increasing function, can be broadly divided into passenger train, goods
Transport train, other functional trains etc..Train function is different, and corresponding rail there is certain difference in terms of material structure
It is different.China's rail is mainly classified according to rail quality kilogram number every meter long, can substantially be divided into crane rail, heavy rail, light
Rail, the architectural difference of different types of rail intuitively can be embodied on the section of rail.Accompanying drawing 1 using the three types of heavy rail as
Example, illustrates variety classes rail in difference present on structure.Rail typically can be divided into rail head, the web of the rail, foot in structure
Three parts.
Unilateral axle count sensor senses as train wheel number detection device when operation principle is by detecting that wheel passes through
The situation of change of electromotive force amplitude carries out meter shaft, and its simple in construction, full-featured, easy to maintenance, reliability is high, increasingly by
To the concern of domestic and foreign scholars and railway department.Unilateral axle count sensor is attached at the web of the rail, between rail head and foot, with
Certain position relationship is there is between rail.The optimal installation site of unilateral axle count sensor corresponding to the rail of different model
By difference, therefore, how according to the difference of rail model, a kind of the quick excellent of unilateral axle count sensor coil space configuration is proposed
Change method, is a urgent problem to be solved.
The content of the invention
The purpose of the present invention is to propose to a kind of the excellent of unilateral axle count sensor coil space preparation legal based on set of weights
Change method, for different types of rail, the optimal spatial position rapidly searched out between unilateral axle count sensor and rail is closed
System, expands the scope of application of unilateral axle count sensor by this method, so as to play positive to promoting unilateral axle count sensor
Effect.
For up to above-mentioned purpose, the present invention proposes a kind of optimization method of unilateral axle count sensor induction coil space configuration,
Comprise the following steps：
S1：Finite element modeling is carried out to unilateral axle count sensor, train wheel and rail；
S2：Make induction coil angle in the unilateral axle count sensor, between vertical range and the web of the rail distance parameter point
Different numerical value are not taken and are emulated, and calculate the induced electromotive force under different value conditions；Wherein described induction coil angle
The angle between the induction coil and horizontal plane in the unilateral axle count sensor is referred to, the vertical range refers to described
Distance refers to the one side between height between rail bottom surface described in the centre distance of unilateral axle count sensor, the web of the rail
The vertical range of the web of the rail of rail described in the centre distance of axle count sensor；
S3：According to simulation result, taking for the parameter when amplitude change rate of the induced electromotive force is larger is determined
It is worth scope；
S4：The installation site of unilateral axle count sensor is optimized according to the legal optimization formula of following set of weights：
Wherein, X is the parametric variable in the unilateral axle count sensor, and q is natural number, and f (x) is the change of induced electromotive force
Change function, ω is weight coefficient；
When F (X) takes maximum, corresponding parameter value is the optimal peace of the unilateral axle count sensor induction coil
Holding position.
According to optimization method proposed by the present invention, wherein, the step S2 includes：
S21：Fixed other parameters are constant, and it is 0 ° to make the induction coil angle difference value, 30 °, 60 °, 90 °, 120 °,
150 °, induced electromotive force simulation calculation when carrying out whetheing there is wheel under different value conditions determines induced electromotive force amplitude
The span of induction coil angle when rate of change is larger；
S22：Fixed other parameters are constant, and induced electromotive force when wheel is whether there is when calculating the vertical range difference becomes
Change, determine the span of vertical range when induced electromotive force amplitude change rate is larger；
S23：Fixed other parameters are constant, and calculating induction coil whether there is the induced electricity during wheel when different from distance between the web of the rail
Kinetic potential changes, and determines the span of distance between web of the rail when induced electromotive force amplitude change rate is larger.
According to optimization method proposed by the present invention, wherein, q values are 3 in the step S4, i.e., parameters are taken respectively
3 different numerical value, the induced electromotive force width to the induced electromotive force amplitude under each different value condition and when whetheing there is wheel
Value changes rate is optimized after being normalized；Wherein f1(x) amplitude change rate of induced electromotive force is represented；f2(x) represent
The amplitude of induced electromotive force when passing through without car；f3(x) amplitude of induced electromotive force when car passes through is indicated.
Compared with prior art, the optimization method of unilateral axle count sensor coil space configuration proposed by the present invention, can be with
The configuration of sensor is rapidly performed by for different rails, train etc., improve unilateral axle count sensor security performance and
The scope of application.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of three kinds of different model heavy rails；
Fig. 2 is the composition structural representation of unilateral axle count sensor；
Fig. 3 is the schematic diagram that unilateral axle count sensor is arranged on rail；
Fig. 4 is Fig. 3 profile；
Fig. 5 for the present invention set up on axle count sensor, rail, wheel FEM model.
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 paid
Embodiment, belongs to the scope of protection of the invention.
The present invention relates to a kind of optimization method of unilateral axle count sensor coil space configuration.Refer to shown in Fig. 2 Fig. 3,
Unilateral axle count sensor includes induction coil 1, induction coil 2, magnet exciting coil and iron core；The axial direction of the iron core is set to
Parallel with rail, the magnet exciting coil is wrapped on the iron core；The induction coil 1 and the induction coil 2 are symmetrical arranged
In the both sides of the iron core, and the axis of the axis of the induction coil 1 and the induction coil 2 be located at the iron core it is same
In individual plane.
Using when, the axle count sensor is installed on the web of the rail side of rail, as shown in Figure 3 and Figure 4.Sensed with unilateral meter shaft
The related parameter of the installation site of device mainly includes between induction coil angle, θ, vertical range H and the web of the rail apart from L；Wherein described sense
Answer coil angle θ to refer to the angle between induction coil and horizontal plane in the unilateral axle count sensor, it is described it is vertical away from
From the height between rail bottom surface described in the centre distance that H refers to the unilateral axle count sensor, apart from L between the web of the rail
Refer to the vertical range of the web of the rail of rail described in the centre distance of the unilateral axle count sensor.
The optimization method of unilateral axle count sensor coil space configuration involved in the present invention, has taken into full account rail species
Influence situation when different to sensor performance, specific implementation step is：
(1) finite element software comsol is based on, sensor, rail, wheel are modeled, as shown in Figure 5；
(2) without wheel and the induced electromotive force situation of change simulation calculation for having wheel during progress induction coil difference angle,
Angle, θ is divided into 0 °, 30 °, 60 °, 90 °, 120 °, 150 ° of six kinds of situations calculate the situation of change of induced electromotive force, can drawn
Angular range when induced electromotive force amplitude change rate is changed greatly；
(3) fixed other specification is constant, and the bottom surface regulation of induction coil is arrived and magnet exciting coil axis vertical range l
For -0.004m, -0.002m, 0,0.002m, 0.004m, 0.006m, 0.008m, 0.01m calculate the change feelings of induced electromotive force
Condition, can draw the scope of distance when induced electromotive force amplitude change rate is changed greatly；
(4) fixed other parameters are constant, will be 0m, 0.001m, 0.0015m apart from d points between induction coil and the web of the rail,
Eight kinds of situations such as 0.002m, 0.0025m, 0.003m, 0.0035m, 0.004m, calculate the situation of change of induced electromotive force, can obtain
Go out induced electromotive force amplitude change rate it is larger when distance range；
S5：Parameters are respectively taken to 3 different numerical value, θ：(θ 1, θ 2, θ 3), l:(l1, l2, l3), d:(d1, d2, d3),
Utilize formula α=(f (x)-fjmin)/(fjmax-fjmin) to each different situations is without wheel and has wheel induced electromotive force amplitude
Ф1,Ф2And induced electromotive force amplitude change rate CR when whetheing there is wheelψIt is normalized, wherein, f (x) is different for each
Situation induced electromotive force amplitude or rate of change；
(6)：It can be seen from the legal optimization formula of following set of weights, the various combination under different parameters varying level can obtain
27 kinds of different F (X) values：
Wherein, X is the parametric variable in the unilateral axle count sensor, and q is natural number, and f (x) is the change of induced electromotive force
Change function, ω is weight coefficient；
According to the significance level that each partial objectives for influences on sensor performance in optimization process, induced electromotive force amplitude is taken to change
Corresponding weight coefficient ω=0.5 of rate, no wheel weight coefficient ω corresponding with there is during wheel induced electromotive force amplitude be respectively
0.25,M, n, k are respectively equal to 1,2,3.
When F (X) takes maximum, corresponding parameter value is the optimal peace of the unilateral axle count sensor induction coil
Holding position.
One of ordinary skill in the art will appreciate that：Accompanying drawing be module in the schematic diagram of one embodiment, accompanying drawing or
Flow is not necessarily implemented necessary to the present invention.
One of ordinary skill in the art will appreciate that：The module in device in embodiment can be according to embodiment description point
It is distributed in the device of embodiment, respective change can also be carried out and be disposed other than in one or more devices of the present embodiment.On
The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in previous embodiment, or equivalent substitution is carried out to which part technical characteristic；And
These modifications are replaced, and the essence of appropriate technical solution is departed from the spirit and scope of technical scheme of the embodiment of the present invention.
Claims (3)
1. a kind of optimization method of unilateral axle count sensor induction coil space configuration, it is characterised in that comprise the following steps：
S1：Finite element modeling is carried out to unilateral axle count sensor, train wheel and rail；
S2：Make the induction coil angle in the unilateral axle count sensor, the parameter of distance takes respectively between vertical range and the web of the rail
Different numerical value is simultaneously emulated, and calculates the induced electromotive force under different value conditions；What wherein described induction coil angle referred to
It is the angle between the induction coil and horizontal plane in the unilateral axle count sensor, the vertical range refers to the one side
Distance refers to the unilateral meter shaft between height between rail bottom surface described in the centre distance of axle count sensor, the web of the rail
The vertical range of the web of the rail of rail described in the centre distance of sensor；
S3：According to simulation result, the value model of the parameter when amplitude change rate of the induced electromotive force is larger is determined
Enclose；
S4：The installation site of unilateral axle count sensor is optimized according to the legal optimization formula of following set of weights：
maxF(X),X∈En,
Wherein, X is the parametric variable in the unilateral axle count sensor, and q is natural number, and f (x) is the change letter of induced electromotive force
Number, ω is weight coefficient；
When F (X) takes maximum, corresponding parameter value is the optimal installation position of the unilateral axle count sensor induction coil
Put.
2. optimization method according to claim 1, it is characterised in that the step S2 includes：
S21：Fixed other parameters are constant, and it is 0 ° to make the induction coil angle difference value, 30 °, 60 °, 90 °, 120 °,
150 °, induced electromotive force simulation calculation when carrying out whetheing there is wheel under different value conditions determines induced electromotive force amplitude
The span of induction coil angle when rate of change is larger；
S22：Fixed other parameters are constant, induced electromotive force change during wheel whether there is when calculating the vertical range difference, really
Determine induced electromotive force amplitude change rate it is larger when vertical range span；
S23：Fixed other parameters are constant, and calculating induction coil whether there is the induced electromotive force during wheel when different from distance between the web of the rail
Change, determines the span of distance between web of the rail when induced electromotive force amplitude change rate is larger.
3. optimization method according to claim 1 or 2, it is characterised in that q values are 3 in the step S4, i.e., to each
Parameter takes 3 different numerical value respectively, the sense to the induced electromotive force amplitude under each different value condition and when whetheing there is wheel
Electromotive force amplitude change rate is answered to be optimized after being normalized；Wherein f1(x) the amplitude change of induced electromotive force is represented
Rate；f2(x) amplitude of induced electromotive force when no car passes through is indicated；f3(x) amplitude of induced electromotive force when car passes through is indicated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149846.5A CN107016171B (en) | 2017-03-14 | 2017-03-14 | Optimization method for spatial configuration of induction coil of unilateral axle counting sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710149846.5A CN107016171B (en) | 2017-03-14 | 2017-03-14 | Optimization method for spatial configuration of induction coil of unilateral axle counting sensor |
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| CN107016171A true CN107016171A (en) | 2017-08-04 |
| CN107016171B CN107016171B (en) | 2020-08-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108304605A (en) * | 2017-11-09 | 2018-07-20 | 清华大学 | Car steering auxiliary system sensor preferred disposition method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102202953A (en) * | 2008-11-05 | 2011-09-28 | 西门子公司 | Wheel sensor |
| KR101593559B1 (en) * | 2015-07-03 | 2016-02-17 | 신우이.엔.지 주식회사 | Wheel detection system and the control method |
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2017
- 2017-03-14 CN CN201710149846.5A patent/CN107016171B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102202953A (en) * | 2008-11-05 | 2011-09-28 | 西门子公司 | Wheel sensor |
| KR101593559B1 (en) * | 2015-07-03 | 2016-02-17 | 신우이.엔.지 주식회사 | Wheel detection system and the control method |
Non-Patent Citations (3)
| Title |
|---|
| SHOGO YASUKAWA 等: "Design Optimization of Magnetic Sensor for Train Detection", 《IEEE TRANSACTIONS ON MAGNETICS》 * |
| 邵陆涛: "《优化设计方法》", 31 July 2007, 中国农业出版社 * |
| 韩广尧: "基于电磁感应原理的单侧计轴传感器研究", 《万方数据知识服务平台》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108304605A (en) * | 2017-11-09 | 2018-07-20 | 清华大学 | Car steering auxiliary system sensor preferred disposition method |
| CN108304605B (en) * | 2017-11-09 | 2019-08-06 | 清华大学 | Car steering auxiliary system sensor preferred disposition method |
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| CN107016171B (en) | 2020-08-18 |
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