CN109720376A - A method of vehicle forward direction is judged by axle-counting points - Google Patents
A method of vehicle forward direction is judged by axle-counting points Download PDFInfo
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- CN109720376A CN109720376A CN201811619889.6A CN201811619889A CN109720376A CN 109720376 A CN109720376 A CN 109720376A CN 201811619889 A CN201811619889 A CN 201811619889A CN 109720376 A CN109720376 A CN 109720376A
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Abstract
The present invention discloses a kind of method that vehicle forward direction is judged by axle-counting points, and two pedals are arranged, and judges the direction that vehicle advances by the successive and state that wheel presses through pedal.Direction of traffic and the accurate meter shaft of energy are judged by using two pedals, and direction of traffic and the wheel number of axle are judged by an axle-counting points, the problem of can solve vehicle axle counting inaccuracy in the prior art, that is, will appear and lose axis phenomenon, can not then judge the direction of vehicle.
Description
Technical field
The present invention relates to traffic communication field, more precisely a kind of side that vehicle forward direction is judged by axle-counting points
Method.
Background technique
Meter shaft track circuit applies many years in railway systems, it is mainly used to substitute conventional rails circuit, master
Advantage is wanted to be the wheel number of vehicle in the record traveling that can be apparent, for judging position of the vehicle in track more
Precisely.Other than use in normal interlocking circuit, apply in the circuit of road junction also than wide, and in these circuits often
Some need accurate meter shaft and judge direction of traffic.No matter but where use, which kind of meter shaft mode can all have vehicle
Meter shaft inaccuracy, that is, the main reason for will appear and lose axis phenomenon, causing this phenomenon is that wheel is parked in meter shaft pedal suddenly
Motor car wheel can be shaken when position back and forth, meter shaft is caused deviation occur, can not then judge the direction of vehicle.It is asked to solve these
Topic, each producer often judge direction of traffic using three meter shaft pedals, and this mode is useful but to three pedals
Installation site is that have strict demand but also increase cost of equipment.And now I propose judged by using two pedals
The method of direction of traffic and the accurate meter shaft of energy.
Summary of the invention
The object of the present invention is to provide a kind of methods that vehicle forward direction is judged by axle-counting points, can solve existing
The problem of technology vehicle axle counting inaccuracy.
The invention adopts the following technical scheme:
A method of vehicle forward direction is judged by axle-counting points, and two pedals are set, pedal is pressed through by wheel
Successively and state judges the direction that vehicle advances.
Corresponding acquisition level is not pressed into the corresponding acquisition level of pedal meter for " 0 " as meter in terms of wheel indentation pedal
“1”。
The state of vehicle includes the following three types state:
State=0: original state；
State=1: intermediate state, wheel are pressed into two pedals, pedal A and pedal B；
State=2: end-state, wheel go out clear two pedals, pedal A and pedal B.
If A=0, B=1, wheel is pressed into pedal A at this time,
If A=1, B=0, wheel is pressed into pedal B at this time,
The moving direction of wheel is from pedal A to pedal B.
If A=0, B=1, wheel is pressed into pedal A at this time,
If A=1, B=0, wheel is pressed into pedal B at this time,
If A=0, B=0, the moving direction of wheel is identical as inceptive direction.
The mobile direction of wheel is judged by the time of two pedals by wheel.
Wheel is absolutely not pressed into pedal A and pedal B, and corresponding acquisition level is all " 1 "；
Wheel is pressed into pedal A, and corresponding acquisition level pedal A is become " 0 " from " 1 ", and pedal B is " 1 "；
Wheel is pressed into pedal A and pedal B simultaneously, and corresponding acquisition level pedal A is become " 0 " from " 1 ", corresponding acquisition electricity
Flat pedal B also becomes " 0 " from " 1 "；
Wheel goes out clear pedal A, is pressed into pedal B, and corresponding acquisition level pedal A first becomes " 0 " from " 1 ", after by " 0 " change
For " 1 ", corresponding acquisition level pedal B becomes " 0 " from " 1 "；
Wheel goes out clear two pedals, and corresponding acquisition level pedal A first becomes " 0 " from " 1 ", after become " 1 " from " 0 ", it is right
The acquisition level pedal B answered first becomes " 0 " from " 1 ", after " 1 " is become from " 0 ".
The invention has the advantages that judging direction of traffic and the accurate meter shaft of energy by using two pedals, and pass through a meter
Axis point judges direction of traffic and the wheel number of axle, can solve vehicle axle counting inaccuracy in the prior art, that is, will appear and lose axis
Phenomenon, the problem of can not then judging the direction of vehicle.
Detailed description of the invention
Below with reference to embodiment and attached drawing, the present invention is described in detail, in which:
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the flow chart of intermediate stage State=1 in Fig. 1.
Fig. 3 is the flow chart of terminal stage State=2 in Fig. 1.
Fig. 4 to Fig. 8 is each status diagram of the invention.
Fig. 9 to Figure 14 is the structural schematic diagram of the embodiment of the present invention.
Specific embodiment
The specific embodiment that present invention is further explained below:
As shown in Figure 1 to Figure 3, a method of judging vehicle forward direction by axle-counting points, two pedals are set, are passed through
The successive and state that wheel presses through pedal judges the direction that vehicle advances.
By the present invention in that judging direction of traffic and the accurate meter shaft of energy with two pedals, and vehicle is judged by an axle-counting points
Direction and the wheel number of axle can solve vehicle axle counting inaccuracy in the prior art, that is, will appear and lose axis phenomenon, then
The problem of can not judging the direction of vehicle.
Corresponding acquisition level is not pressed into the corresponding acquisition level of pedal meter for " 0 " as meter in terms of wheel indentation pedal
“1”。
The state of vehicle includes the following three types state:
State=0: original state；
State=1: intermediate state, wheel are pressed into two pedals, pedal A and pedal B；
State=2: end-state, wheel go out clear two pedals, pedal A and pedal B.
If A=0, B=1, wheel is pressed into pedal A at this time,
If A=1, B=0, wheel is pressed into pedal B at this time,
The moving direction of wheel is from pedal A to pedal B.
If A=0, B=1, wheel is pressed into pedal A at this time,
If A=1, B=0, wheel is pressed into pedal B at this time,
If A=0, B=0, the moving direction of wheel is identical as inceptive direction.
The mobile direction of wheel is judged by the time of two pedals by wheel.
Wheel is absolutely not pressed into pedal A and pedal B, and corresponding acquisition level is all " 1 "；
Wheel is pressed into pedal A, and corresponding acquisition level pedal A is become " 0 " from " 1 ", and pedal B is " 1 "；
Wheel is pressed into pedal A and pedal B simultaneously, and corresponding acquisition level pedal A is become " 0 " from " 1 ", corresponding acquisition electricity
Flat pedal B also becomes " 0 " from " 1 "；
Wheel goes out clear pedal A, is pressed into pedal B, and corresponding acquisition level pedal A first becomes " 0 " from " 1 ", after by " 0 " change
For " 1 ", corresponding acquisition level pedal B becomes " 0 " from " 1 "；
Wheel goes out clear two pedals, and corresponding acquisition level pedal A first becomes " 0 " from " 1 ", after become " 1 " from " 0 ", it is right
The acquisition level pedal B answered first becomes " 0 " from " 1 ", after " 1 " is become from " 0 ".
As shown in Fig. 4 to Fig. 8, be wheel from left to right once by two pedal A and B when corresponding state diagram, wherein a
Figure is the simulation drawing of virtual condition, and b figure is its X-Y scheme, in terms of wheel indentation pedal " 0 ", is not pressed into for meter " 1 " and carries out such as
Lower explanation:
Fig. 4: wheel is absolutely not pressed into pedal A and pedal B, and corresponding acquisition level is all " 1 "；
Fig. 5: wheel is pressed into pedal A, and corresponding acquisition level pedal A is become " 0 " from " 1 ", and pedal B is " 1 "；
Fig. 6: wheel is pressed into pedal A and pedal B simultaneously, and corresponding acquisition level pedal A is become " 0 " from " 1 ", corresponding
Acquisition level pedal B also becomes " 0 " from " 1 "；
Fig. 7: wheel goes out clear pedal A, is pressed into pedal B, and corresponding acquisition level pedal A elder generation becomes " 0 " from " 1 ", after by
" 0 " becomes " 1 ", and corresponding acquisition level pedal B becomes " 0 " from " 1 "；
Fig. 8: wheel goes out clear two pedals, and corresponding acquisition level pedal A first becomes " 0 " from " 1 ", after become from " 0 "
" 1 ", corresponding acquisition level pedal B first become " 0 " from " 1 ", after " 1 " is become from " 0 ".
Embodiment 1
Vehicle from left to right, is passed through with normal speed
4. number as shown in figure 9, wheel passes through A with normal speed from left to right, B pedal, over time, vehicle is from
State (two pedals of wheel are not all pressed onto) starts to calculate, and as wheel is walked forward, wheel is pressed into B after being first pressed into A pedal
Pedal reaches red 1. number state, and wheel continuation is walked forward, and wheel is pressed into two pedals simultaneously and enters 2. number state, wheel
Continuation is walked forward, and wheel first leaves A pedal, after leave B pedal, recording status is 3., to step on as wheel successively leaves two
Plate shows that wheel has passed through two pedals into 4. number state.
Embodiment 2
Vehicle from right to left, is passed through with normal speed
As shown in Figure 10, be wheel passes through B with normal speed from right to left, A pedal, over time, vehicle from
4. number state (two pedals of wheel are not all pressed onto) starts to calculate, as wheel is walked forward, after wheel is first pressed into B pedal
It being pressed into A pedal and reaches red 1. number state, wheel continuation is walked forward, and wheel is pressed into two pedals simultaneously and enters 2. number state,
Wheel continuation is walked forward, and wheel first leaves B pedal, after leave A pedal, recording status is 3., as wheel successively leaves two
A pedal shows that wheel has passed through two pedals into 4. number state.
Embodiment 3
Vehicle from left to right, not over, after indentation again return from right to left
As shown in figure 11, it is that wheel gets ahead from left to right, does not pass through two pedals completely but but also return from right to left
It returns.The first situation is wheel since all no indentation of two pedals, and as wheel is walked, wheel, which is first pressed into A pedal, not to be had
It is pressed into B pedal, reversely walking exits A pedal again after vehicle stops suddenly at this time, returns to initial position；Second situation is wheel
Since two pedals all that being pressed into, as wheel is walked, wheel is not first pressed into A pedal and is not pressed into B pedal, with rear wheel
It is pressed into B pedal again, reversely walking exits A pedal again after vehicle stops suddenly at this time, returns to initial position.
Embodiment 4
Vehicle from right to left, not over, after indentation again return from left to right
As shown in figure 12, it is that wheel gets ahead from right to left, does not pass through two pedals completely but but also return from left to right
It returns.The first situation is wheel since all no indentation of two pedals, and as wheel is walked, wheel, which is first pressed into B pedal, not to be had
It is pressed into A pedal, reversely walking exits B pedal again after vehicle stops suddenly at this time, returns to initial position；Second situation is wheel
Since two pedals all that being pressed into, as wheel is walked, wheel is not first pressed into B pedal and is not pressed into A pedal, with rear wheel
It is pressed into A pedal again, reversely walking exits B pedal again after vehicle stops suddenly at this time, returns to initial position.
Above 4 kinds of situations are that the X-Y scheme that wheel occurs in normal walking compares, and the feelings that often scene occurs
Condition includes some special circumstances other than these normal conditions.
Embodiment 5
Vehicle from left to right, is passed through with slow speed, and during which midway has repeatedly pause such as Figure 13 institute due to its scheduling
Show,
Situation 1: with the passage of time shaft, vehicle is counted since 4. number state (two pedals of wheel are not all pressed onto)
Calculate, showing when to 5. number state is that wheel indentation A pedal is not pressed into B pedal, then to a next 4. number state be wheel
Leaving A pedal, B pedal is not also pressed into simultaneously, this phenomenon illustrates that wheel enters from A pedal and retracts again from A pedal；
Situation 2: wheel is calculated since 4. number state (two pedals of wheel are not all pressed onto), with wheel to move ahead
Walk, wheel is first pressed into indentation B pedal after A pedal and reaches red 1. number state, while be pressed into B pedal A pedal there are no from
It opens, reaches red 2. number state；
Situation 3: wheel 2. number state is that wheel only leaves A pedal to a 6. number state from figure and B pedal appoints so indentation；
Situation 4: wheel from 6. state to 2. state description due to vehicle opinion stop over after since vehicle inertia leads to wheel
Shaking cause wheel retreat again one be pushed down into A pedal simultaneously B pedal appoint so indentation；
Situation 5: wheel continues to pull back from B pedal from 2. number state to 5. state description wheel, and is pressed into A pedal；
Situation 6: wheel is walked forward since 5. number state is to 2. state description wheel again, while being pressed into AB two and being stepped on
Plate；
Situation 7: wheel continues to walk forward from 2. number state to 3. state description wheel, and wheel first leaves A pedal, after from
B pedal is opened, 4. a number state wheel leaves two pedals to most Zhongdao.
In terms of above-mentioned several situations, wheel it is final the result is that passed through A from left to right, two pedals of B, but from walking
During see, since wheel shakes back and forth between A, two pedals of B, cause to have occurred 2. → 6., 6. → 2., 2. → 5.,
5. the variation of → 2. four states, causes whole figure that irregular variation has occurred compared with Fig. 1.
Embodiment six
Vehicle from right to left, is passed through with slow speed, and during which midway has repeatedly pause such as Figure 14 institute due to its scheduling
Show,
Situation 1: with the passage of time shaft, vehicle is counted since 4. number state (two pedals of wheel are not all pressed onto)
Calculate, showing when to 5. number state is that wheel indentation B pedal is not pressed into A pedal, then to a next 4. number state be wheel
Leaving B pedal, A pedal is not also pressed into simultaneously, this phenomenon illustrates that wheel enters from B pedal and retracts again from B pedal；
Situation 2: wheel is calculated since 4. number state (two pedals of wheel are not all pressed onto), with wheel to move ahead
Walk, wheel is first pressed into indentation A pedal after B pedal and reaches red 1. number state, while be pressed into A pedal B pedal there are no from
It opens, reaches red 2. number state；
Situation 3: wheel 2. number state is that wheel only leaves B pedal to a 6. number state from figure and A pedal appoints so indentation；
Situation 4: wheel from 6. state to 2. state description due to vehicle opinion stop over after since vehicle inertia leads to wheel
Shaking cause wheel retreat again one be pushed down into B pedal simultaneously A pedal appoint so indentation；
Situation 5: wheel continues to pull back from A pedal from 2. number state to 5. state description wheel, and is pressed into B pedal；
Situation 6: wheel is walked forward since 5. number state is to 2. state description wheel again, while being pressed into BA two and being stepped on
Plate；
Situation 7: wheel continues to walk forward from 2. number state to 3. state description wheel, and wheel first leaves B pedal, after from
A pedal is opened, 4. a number state wheel leaves two pedals to most Zhongdao.
In terms of above-mentioned several situations, wheel it is final the result is that passed through B from right to left, two pedals of A, but from walking
During see, since wheel shakes back and forth between B, two pedals of A, cause to have occurred 2. → 6., 6. → 2., 2. → 5.,
5. the variation of → 2. four states, causes whole figure that irregular variation has occurred compared with Fig. 2.
1.1. walking direction and meter shaft
1. from left to right
Fig. 4 and Fig. 8 is that wheel is walked from left to right, as can be seen from Figure 4 a complete walking process figure, is started
Two pedals are not all pressed into, and to be then first pressed into a state of A pedal, are then pressed into B pedal again, and should be gone out at this time
The case where existing A, two pedals of B are pressed into simultaneously, to occur leaving B pedal after wheel first leaves A pedal during walking on
State, eventually off two pedals, that is to say, entire complete track route figure is to need this 5 states；Although Fig. 5
Wheel is more complicated in the process of walking, but it can be found that including all states of Fig. 1 in Fig. 5, only not after carefully analyzing
It crosses to having separated, but wheel is consistent with two pedals of pedal are left from two states for initially entering pedal, and
The case where centre two pedals several times occurs while being pressed into, this has also just supplied the shape that all wheels pass through pedal in Fig. 1
State.That is to say, wheel will pass through AB pedal from left to right, it sequentially must be that AB is not pressed into → A indentation → B indentation (AB at this time
It is pressed into simultaneously) → A leaves → and B leaves (AB leaves at this time), it can judge that wheel is from left to right by this 5 states
Walking.
2. from right to left
Figure 10 and Figure 14 is that wheel is walked from right to left, as can be seen from Figure 10 a complete walking process figure,
Start two pedals not all to be pressed into, to be then first pressed into a state of B pedal, be then pressed into A pedal again, and answers at this time
There is the case where B, two pedals of A are pressed into simultaneously in this, to occur leaving A after wheel first leaves B pedal during walking on
The state of pedal, eventually off two pedals, that is to say, entire complete track route figure is to need this 5 states；Fig. 6
Although wheel is more complicated in the process of walking, it can be found that including all states of Fig. 2 in Fig. 6 after carefully analyzing,
Only separated, but wheel is consistent with two pedals of pedal are left from two states for initially entering pedal,
And centre the case where two pedals several times occur while being pressed into, this has also just supplied in Figure 10 all wheels by stepping on
The state of plate.That is to say, wheel will pass through BA pedal from right to left, it sequentially must be that BA is not pressed into → B indentation → A indentation
(BA is pressed into simultaneously at this time) → B leaves → A leaves (BA leaves at this time), by this 5 states can judge wheel be from
Dextrad left lateral is walked.
3. directionless situation
It is all to go out in Figure 11 from A into A, but all not over AB pedal.It is that AB is not pressed into → A that A, which goes out 1. state into A,
Indentation → A leaves, and is not similar to several states of direction the inside from left to right, therefore may determine that wheel does not pass through two pedals；A
Into A go out 2. state be AB be not all pressed into → A indentation → B indentation (at this time AB while being pressed into) → B leaves → A leaves that (AB is at this time
Leave), it is pressed into next state and inconsistent (most latter two shape of state from left to right simultaneously in AB in whole process
State), although therefore may determine that wheel sequence indentation AB pedal, wheel leave the sequence of pedal and normal through being sequentially opposite
, so wheel is determined as not over AB pedal at this time.
It is all to go out in Figure 12 from B into B, but all not over BA pedal.It is that BA is not pressed into → B that B, which goes out 1. state into B,
Indentation → B leaves, and is similar to several states of direction the inside from right to left, therefore may determine that wheel does not pass through two and steps on
Plate；B into B go out 2. state be BA be not all pressed into → B indentation → A indentation (at this time BA while being pressed into) → A leaves → B leaves (this
When BA all leave), in whole process BA be pressed into simultaneously state with next state and from right to left it is inconsistent (most latter two
State), although therefore may determine that wheel sequentially indentation BA pedal, bus or train route leave the sequence of pedal and be phase normal through preface
Anti-, so wheel is determined as not over BA pedal at this time.
4. meter shaft
Simple wheel meter shaft is that meter shaft adds 1 when single wheel is by the direction AB, subtracts 1 by meter shaft when the direction BA.And
Our actual conditions can encounter above-mentioned various situations, have error for meter shaft, but sentenced by the above-mentioned analysis to direction
Break its be substantially exactly to wheel by pedal whether judge, can accurately be realized very much pair according to direction accurate judgement
The counting (meter shaft) of axle.
Pass through the sequence of pedal it will be seen that judging the direction of wheel according to upper face wheel, is also easy to record by stepping on
The wheel number of axle of plate.But actual conditions are not the variation that simple states above 1 arrives state 5.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of method for judging vehicle forward direction by axle-counting points, which is characterized in that two pedals of setting pass through pressure wheel
The successive and state for crossing pedal judges the direction that vehicle advances.
2. the method according to claim 1 for judging vehicle forward direction by axle-counting points, which is characterized in that with pressure wheel
Entering the corresponding acquisition level of pedal meter is " 0 ", is not pressed into the corresponding acquisition level of pedal meter as meter " 1 ".
3. the method according to claim 2 for judging vehicle forward direction by axle-counting points, which is characterized in that the shape of vehicle
State includes the following three types state:
State=0: original state；
State=1: intermediate state, wheel are pressed into two pedals, pedal A and pedal B；
State=2: end-state, wheel go out clear two pedals, pedal A and pedal B.
4. the method according to claim 2 for judging vehicle forward direction by axle-counting points, which is characterized in that
If A=0, B=1, wheel is pressed into pedal A at this time,
If A=1, B=0, wheel is pressed into pedal B at this time,
The moving direction of wheel is from pedal A to pedal B.
5. the method according to claim 4 for judging vehicle forward direction by axle-counting points, which is characterized in that
If A=0, B=1, wheel is pressed into pedal A at this time,
If A=1, B=0, wheel is pressed into pedal B at this time,
If A=0, B=0, the moving direction of wheel is identical as inceptive direction.
6. the method as claimed in any of claims 1 to 5 for judging vehicle forward direction by axle-counting points, feature
It is, the mobile direction of wheel is judged by the time of two pedals by wheel.
7. the method for vehicle forward direction is judged by axle-counting points according to claim 6, which is characterized in that
Wheel is absolutely not pressed into pedal A and pedal B, and corresponding acquisition level is all " 1 "；
Wheel is pressed into pedal A, and corresponding acquisition level pedal A is become " 0 " from " 1 ", and pedal B is " 1 "；
Wheel is pressed into pedal A and pedal B simultaneously, and corresponding acquisition level pedal A is become " 0 " from " 1 ", and corresponding acquisition level is stepped on
Plate B also becomes " 0 " from " 1 "；
Wheel goes out clear pedal A, is pressed into pedal B, and corresponding acquisition level pedal A elder generation becomes " 0 " from " 1 ", after " 1 " is become from " 0 ",
Corresponding acquisition level pedal B becomes " 0 " from " 1 "；
Wheel goes out clear two pedals, and corresponding acquisition level pedal A first becomes " 0 " from " 1 ", after become " 1 " from " 0 ", it is corresponding
Acquisition level pedal B first from " 1 " becomes " 0 ", after " 1 " is become from " 0 ".
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| US8655540B2 (en) * | 2007-08-20 | 2014-02-18 | International Electronic Machines Corp. | Rail vehicle identification and processing |
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|---|---|---|---|---|
| US6064315A (en) * | 1998-12-29 | 2000-05-16 | Harmon Industries, Inc. | Zero speed transducer |
| US8655540B2 (en) * | 2007-08-20 | 2014-02-18 | International Electronic Machines Corp. | Rail vehicle identification and processing |
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Application publication date: 20190507 |