CN102566472B - Method and device for recording digitalized asphalt road information - Google Patents
Method and device for recording digitalized asphalt road information Download PDFInfo
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- CN102566472B CN102566472B CN201210013748.6A CN201210013748A CN102566472B CN 102566472 B CN102566472 B CN 102566472B CN 201210013748 A CN201210013748 A CN 201210013748A CN 102566472 B CN102566472 B CN 102566472B
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- magnetic head
- magnetization
- road
- road surface
- write
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Abstract
The invention provides a method and a device for recording digitalized asphalt road information. The device comprises an erasing magnetic head array, a write magnetic head array, a calibration magnetic head array and a modification magnetic head array which are sequentially arranged in parallel from front to back and connected with a singlechip respectively, wherein the singlechip is connected with a memory. The method comprises the following steps of: adding a magnetization material into asphalt on a normal road surface, so that the road has a data storage function; arranging a device for reading and writing road data on a universal vehicle chassis; and reading and writing data of a magnetic road surface of the road by magnetic heads, acquiring the written data through a magnetic induction sensor of the vehicle, and acquiring relevant inducing contents. A road inducing mode can be improved, the inducing precision is improved, a convenient and quick cruise mode is realized, and the read and write efficiency is relatively high.
Description
Technical field
The present invention relates to a kind of magnetic recording method, relate in particular to a kind of digitizing asphalt roads information recording method and device thereof.
Background technology
A kind of digitizing asphalt roads method and device thereof are a kind of brand-new methods, highway also there is no digital asphalt roads concept at present, the method for digitizing of road carrys out the data message of bulletin vehicle by way mark board and led display board, or pass through GPS navigation, or follow closely recorded information by magnetic track, as 200620139223.7 (a kind of magnetic signposts) and 201010200487.X (magnetic positioning method of traffic vehicle based on displacement cyclic unique code) disclose a kind of magnetic signpost, it is as magnetic induced road sign by magnetic track nail, with equidistantly, do not give prominence to the degree of depth on road surface, for good and all be embedded on road, with one group of above-mentioned magnetic track nail, press S, the chosen position relation that N polar orientation is different or uniformly-spaced lay magnetic track nail by the rule of displacement cyclic unique code on road, by representing that different permutation and combination is embedded in road, then by vehicle harvester, obtain relevant information.This laying method need to destroy road surface, needs larger manpower and physics.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of digitizing asphalt roads information recording method and device thereof are provided, the information exchange of road are crossed to road itself and record.
The present invention solves the problems of the technologies described above taked technical scheme to be: a kind of digitizing asphalt roads information record carrier, is characterized in that: it comprises magnetic erasing head array, write head array, verification magnetic head arrays, the modification magnetic head arrays being arranged in parallel successively from front to back; Each magnetic head arrays is connected with single-chip microcomputer respectively, and single-chip microcomputer is connected with storer.
Press such scheme, each described magnetic head arrays is installed under the chassis of automobile, and each magnetic head arrays bottom is 1-10cm with the height on magnetization road surface; Described single-chip microcomputer and storer are arranged in automobile.
Press such scheme, each described magnetic head arrays structure is identical, and the columns of each magnetic head arrays is identical with the track number on magnetization road surface, and every row comprise 7-70 magnetic head, and the lateral separation of each magnetic head is 5-50cm; The magnetic line of force of magnetic head is filled with and is write direction and need to be chosen as laterally, longitudinally or vertically according to magnetization road surface.
An asphalt roads information recording method, is characterized in that: it comprises the following steps:
1) before laying the construction of superficial layer asphalt roads, the magnetization powder that adds 1%-20% in pitch, through heating, stirring, lays after mixing with building stones, form the magnetisable asphalt surface course of one deck 1-3cm, the surface of magnetisable asphalt surface course is magnetization road surface;
2) the travelling speed V of preset recording device
iand access time t corresponding to magnetic head
j;
3) when pen recorder is with V
iwhile traveling at the uniform speed, send demagnetization information to magnetic erasing head array, to eliminate magnetization road surface original information;
4) from storer, read road induction information and send to write head array, road induction information is write to magnetization road surface;
5) information of road surface verification magnetic head being read and the road induction information comparison just having write, send the road induction information just having write and again write to revising magnetic head arrays if inconsistent; Single writes end;
6) with access time t
jfor the cycle repeats step 3-5.
Press such scheme, the travelling speed V of described pen recorder
ibe automobile driving speed; The access time t that described magnetic head is corresponding
j=t
i=A/V
i; Wherein A is the length of unit frame on magnetisable asphalt surface course, is known quantity; t
iaccess time for unit frame.
Press such scheme, the magnetization road surface of often rewriting for needs, its magnetisable asphalt surface course adopts semihard magnetization powder; For the magnetization road surface that does not need often to rewrite, its magnetisable asphalt surface course adopts rigid or rectangle magnetization powder; Difference according to magnetization road surface, adds pitch to serve as a mark by different colors.
Press such scheme, each described road induction information comprises start bit+induction data+check bit+stop bit successively, and induction packet is containing track, lane shift position, front space data and the traffic mark at track mileage, place.
Beneficial effect of the present invention is:
1, magnetization material will be added in the pitch on normal road surface, make road there is the function of storage data, then the device of read-write road data is arranged on general-purpose vehicle domain, by magnetic head, the magnetic circuit face of road surface is read and write data, the data that then the magnetic induction sensor collection by vehicle writes, obtain relevant induced inner content, can improve road induction mode, improving induction precision, is the mode of cruising easily and fast, and read-write efficiency is higher.
2, be combined with conventional automobile, easy to implement.
Accompanying drawing explanation
Fig. 1 is digitizing asphalt roads information record carrier scheme of installation.
Fig. 2 is digitizing asphalt roads information record carrier structural drawing.
Fig. 3 is that the magnetic line of force longitudinally writes schematic diagram.
Fig. 4 is that the magnetic line of force laterally writes schematic diagram.
Fig. 5 is that magnetic line of force vertical direction writes schematic diagram.
Fig. 6 is magnetization road structure figure.
Fig. 7 is digitizing asphalt roads recording method process flow diagram.
Fig. 8 is the theory diagram of digitizing asphalt roads pen recorder.
In figure: 1. magnetic erasing head array, 2. write head array, 3. verification magnetic head arrays, 4. revises magnetic head arrays, 5. magnetize road surface, 6. vehicle chassis, 7. longitudinal read-write head, 8. horizontal read-write head, 9. vertical direction read-write head, 10. magnetisable asphalt surface course, 11. middle layers, 12. stratum.
Embodiment
As depicted in figs. 1 and 2, digitizing asphalt roads pen recorder comprises magnetic erasing head array 1, write head array 2, verification magnetic head arrays 3, the modification magnetic head arrays 4 being arranged in parallel successively from front to back, each magnetic head arrays is arranged on vehicle chassis 6, and each magnetic head arrays bottom is 1-10cm with the height on magnetization road surface.The function of above four kinds of magnetic head arrays is as follows: magnetic erasing head array 1 is eliminated the magnetization information existing in magnetization road surface; Write head array 2 writes magnetization information; The information having existed in 3 pairs of information that write before of verification magnetic head arrays and road surface contrasts verification; Revise magnetic head arrays 4 and operate according to the verification judgement of verification magnetic head before, if data are variant, again write once again, otherwise be failure to actuate.
By Fig. 2,3,4,5, visible digitizing asphalt roads pen recorder is the duty with magnetization road surface at vehicle chassis.Each magnetic head arrays structure is identical, and the columns of each magnetic head arrays is identical with the track number on magnetization road surface, and every row comprise 7-70 magnetic head, and the lateral separation of each magnetic head is 5-50cm; In each magnetic head arrays, according to magnetization road surface, need to be provided with longitudinal read-write head 7, horizontal read-write head 8,9 three kinds of magnetic heads of vertical direction read-write head, the magnetic line of force of magnetic head is filled with and is write that direction is respectively laterally, longitudinal, vertical direction, to three diverse direction data writings in magnetization road surface 5, improve the read or write speed of data.Magnetic head adopts coil winding magnetic core to form.
Fig. 8 is the theory diagram of digitizing asphalt roads pen recorder, and each magnetic head arrays is connected with single-chip microcomputer respectively, and single-chip microcomputer is connected with storer.The bus that single-chip microcomputer and magnetic head have according to magnetic head or the type of interface communicate, and also can use digital I/O signal to control.
As shown in Figure 7, it comprises the following steps a kind of digitizing asphalt roads information recording method:
1) before laying the construction of superficial layer asphalt roads, in pitch, add the magnetization powder of 1%-20%, through heating, stirring, after mixing with building stones, lay, form the magnetisable asphalt surface course of one deck 1-3cm.
Fig. 6 is magnetization road structure figure, and magnetization road is divided into magnetisable asphalt surface course 10, middle layer 11 and bottom 12 from top to bottom, and the surface of magnetisable asphalt surface course 10 is magnetization road surface 5.Magnetization road surface is on the basis on plain asphalt road surface, has added magnetic mixing in road surface, top layer, makes road surface have magnetization characteristic.Common bituminous pavement comes road surface, Tanaka top layer by Coarse Graded Bituminous Concrete, magnetic add the quality that can't affect road surface, and can magnetize processing to road.
The magnetization road surface of often rewriting for needs, its magnetisable asphalt surface course adopts semihard magnetization powder; For the magnetization road surface that does not need often to rewrite, its magnetisable asphalt surface course adopts rigid or rectangle magnetization powder; Difference according to magnetization road surface, adds pitch to serve as a mark by different colors.
2) the travelling speed V of preset recording device
iand access time t corresponding to magnetic head
j.
The travelling speed V of pen recorder
ibe automobile driving speed; The access time t that described magnetic head is corresponding
j=t
i=A/V
i; Wherein A is the length of unit frame on magnetisable asphalt surface course, is known quantity; t
iaccess time for unit frame.
3) when pen recorder is with V
iwhile traveling at the uniform speed, send demagnetization information to magnetic erasing head array, to eliminate magnetization road surface original information.
4) from storer, read road induction information and send to write head array, road induction information is write to magnetization road surface.
Each road induction information comprises start bit+induction data+check bit+stop bit successively, and induction packet is containing track, lane shift position, front space data and the traffic mark at track mileage, place, as shown in the table.
| Dead zone | Start bit | Track mileage | Number of track-lines | Lane shift number | Front space information | Traffic mark | Check bit | Stop bit |
| Dead zone | Start bit | Track mileage | Number of track-lines | Lane shift number | Front space information | Traffic mark | Check bit | Stop bit |
| Dead zone | Start bit | Track mileage | Number of track-lines | Lane shift number | Front space information | Traffic mark | Check bit | Stop bit |
| Dead zone | Start bit | Track mileage | Number of track-lines | Lane shift number | Front space information | Traffic mark | Check bit | Stop bit |
| Dead zone | Start bit | Track mileage | Number of track-lines | Lane shift number | Front space information | Traffic mark | Check bit | Stop bit |
Dead zone: as its name suggests, do not carry the region of any information, play suggesting effect.
Start bit: first character, there is special construction, when scanner reads is got this character, just started formal reading code.
Induction data: the main contents of bar code, have comprised track mileage, number of track-lines, lane shift number, front space information, traffic mark etc.
Check bit: whether the data that check reads are correct.Different coding rule may have different verification rules.
Stop bit: last character, equally there is special construction, complete for informing code scans, also play the effect of just carrying out verification calculating simultaneously.
For convenient bidirectional scanning, start-stop character has dissymmetrical structure.When therefore scanner scans, can automatically to bar code information, rearrange.
The definition of road induction information can improve the operating speed of digitizing asphalt roads pen recorder greatly like this, instant under the workload of large information capacity, improve the speed of vehicle, and improve the speed (as long as being not more than the maximum read or write speed of magnetic head) of read-write simultaneously, also can raise the efficiency; And use general-purpose vehicle also greatly to save the cost of device.
5) information of road surface verification magnetic head being read and the road induction information comparison just having write, send the road induction information just having write and again write to revising magnetic head arrays if inconsistent; Single writes end.
6) with access time t
jfor the cycle repeats step 3-5.
Claims (1)
1. a digitizing asphalt roads information recording method, it is characterized in that: it adopts digitizing asphalt roads information record carrier, comprise the magnetic erasing head array, write head array, verification magnetic head arrays, the modification magnetic head arrays that are arranged in parallel successively from front to back; Each magnetic head arrays is connected with single-chip microcomputer respectively, and single-chip microcomputer is connected with storer; Each described magnetic head arrays is installed under the chassis of automobile, and each magnetic head arrays bottom is 1-10cm with the height on magnetization road surface; Described single-chip microcomputer and storer are arranged in automobile; Each described magnetic head arrays structure is identical, and the columns of each magnetic head arrays is identical with the track number on magnetization road surface, and every row comprise 7-70 magnetic head, and the lateral separation of each magnetic head is 5-50cm; The magnetic line of force of magnetic head is filled with and is write direction and need to be chosen as laterally, longitudinally or vertically according to magnetization road surface;
It comprises the following steps:
1) before laying the construction of superficial layer asphalt roads, the magnetization powder that adds 1%-20% in pitch, through heating, stirring, lays after mixing with building stones, form the magnetisable asphalt surface course of one deck 1-3cm, the surface of magnetisable asphalt surface course is magnetization road surface;
2) the travelling speed V of preset recording device
iand access time t corresponding to magnetic head
j;
3) when pen recorder is with V
iwhile traveling at the uniform speed, send demagnetization information to magnetic erasing head array, to eliminate magnetization road surface original information;
4) from storer, read road induction information and send to write head array, road induction information is write to magnetization road surface;
5) information of road surface verification magnetic head being read and the road induction information comparison just having write, send the road induction information just having write and again write to revising magnetic head arrays if inconsistent; Single writes end;
6) with access time t
jfor the cycle repeats step 3-5;
The travelling speed V of described pen recorder
ibe automobile driving speed; The access time t that described magnetic head is corresponding
j=t
i=A/V
i; Wherein A is the length of unit frame on magnetisable asphalt surface course, is known quantity; t
iaccess time for unit frame;
The magnetization road surface of often rewriting for needs, its magnetisable asphalt surface course adopts semihard magnetization powder; For the magnetization road surface that does not need often to rewrite, its magnetisable asphalt surface course adopts rigid or rectangle magnetization powder; Difference according to magnetization road surface, adds pitch to serve as a mark by different colors;
Described road induction information comprises start bit+induction data+check bit+stop bit successively, and induction packet is containing track, lane shift position, front space data and the traffic mark at track mileage, place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210013748.6A CN102566472B (en) | 2012-01-17 | 2012-01-17 | Method and device for recording digitalized asphalt road information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210013748.6A CN102566472B (en) | 2012-01-17 | 2012-01-17 | Method and device for recording digitalized asphalt road information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102566472A CN102566472A (en) | 2012-07-11 |
| CN102566472B true CN102566472B (en) | 2014-02-19 |
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| CN201210013748.6A Expired - Fee Related CN102566472B (en) | 2012-01-17 | 2012-01-17 | Method and device for recording digitalized asphalt road information |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110731C (en) * | 1999-05-25 | 2003-06-04 | 李善伯 | Installation method of computerized ground magnetic route beacon and sensor |
| CN101188062A (en) * | 2007-12-17 | 2008-05-28 | 马敬浩 | Motor vehicle monitoring system |
| CN102280034A (en) * | 2011-05-27 | 2011-12-14 | 迈锐数据（北京）有限公司 | Vehicle detection method |
| CN102289939A (en) * | 2011-07-05 | 2011-12-21 | 北京航空航天大学 | Vehicle/traffic flow detection method based on three-axle magnetoresistive sensor |
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| CN102566472A (en) | 2012-07-11 |
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