CN103021256A - Road base map information processing method applicable to rapid traffic accident disposing - Google Patents
Road base map information processing method applicable to rapid traffic accident disposing Download PDFInfo
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Abstract
The invention relates to a road base map information processing method applicable to rapid traffic accident disposing. The road base map information processing method comprises the steps of: 1) collecting coordinate information of a base road through a total station, and sending the coordinate information to a computer; and 2) generating base road base map symbol information according to a road base map generating method by the computer; and connecting by drawing, thereby generating a road base map. Compared with prior art, the road base map information processing method applicable to rapid traffic accident disposing has the advantages of being beneficial to shortening traffic accident disposing time, high in mapping accuracy, complete in data coverage and the like.
Description
Technical field
The present invention relates to a kind of road base map information processing method, especially relate to a kind of road base map information processing method that is applicable to the rapid transit accident treatment.
Background technology
According to GB " GBT11797-2005 traffic accident situ map shape symbol ", the graphical symbol of traffic accident scene diagram is as shown in table 1.As seen from the table, to be divided into be 6 large classes to traffic accident scene diagram: traffic element graphical symbol, moving state tracks graphical symbol, traffic scene graphical symbol, road and road safety facility graphical symbol, soil utilization, vegetation and atural object graphical symbol and other graphical symbols.Difference according to render phase, these symbols are divided into live element graphical symbol and road guide image symbol, wherein road guide image symbol is relatively-stationary, disobeys the generation of accident and changes, and the figure that we will comprise road guide image symbol is called the road base map.
Table 1
The road base map is the important component part of traffic accident scene diagram, and the road content is many, the drafting time is long.In the traffic hazard processing procedure, the drafting of road base map mainly contains three kinds of modes: 1, the on-the-spot synoptic diagram of directly drawing, the general apparatus measures such as tape measure or stadimeter that adopt, specify the position relationship of point-to-point transmission, such drawing to be difficult to satisfy the requirement of the measuring accuracy of scene of the accident confirmation of responsibility with the mode of dimensioning; 2, the on-the-spot scale map of drawing, this operating type speed is excessively slow, its road of the crossing of some Frequent Accidents and affiliated facility, identifier marking more complicated all particularly, so direct speed that traffic recovers that affects; 3, draw in advance scale map, the scene is called and is preset the road base map, and the advantage of this mode is that speed is fast, and mapping is accurately.
At present, during the scene of a traffic accident is processed, usually adopt on-the-spot mode of directly drawing synoptic diagram, measured and the on-the-spot road base map of drawing by instruments such as traffic police personnel field by using tape measures.The defective that the road base map that this mode is drawn exists is:
1, the relativeness of atural object is inaccurate in the road base map;
2, same highway section, the road base map disunity that different personnel draw brings certain difficulty for the judgement of accident responsibility side;
3, the road base map of papery is difficult for preservation, filing and communication and shares;
4, be subjected to the restriction of on-the-spot drafting time, road base map randomness is larger, contains uncomplete content;
For the problems referred to above, company has studied many moneys traffic accident scene diagram drawing system in succession both at home and abroad at present, such as the Easy Street Draw system of Tianjin TECOM400 traffic accident scene diagram drawing system and the exploitation of U.S. A-T Solutions Easy company.These systems pay attention to the drawing skill of solving road base map from the drawing practice, reduce the drafting time of road base map as far as possible, even the more embedded model of intersections commonly used, in the hope of reducing the drafting problem of road base map.But, because the site road situation is complicated, being difficult to find the road model of direct correspondence, the road base map still needs on-the-spot the drafting.
Summary of the invention
Purpose of the present invention be exactly provide a kind of in order to overcome the defective that above-mentioned prior art exists and be conducive to shorten the traffic hazard processing time, mapping precision is high, data contain the full road base map information processing method that is applicable to the rapid transit accident treatment.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of road base map information processing method that is applicable to the rapid transit accident treatment is characterized in that, may further comprise the steps:
1) gathers basic path coordinate information by total powerstation, and send it to computing machine;
2) computing machine is according to road base map generation method formation base road base map symbolic information, and connects drafting, generates the road base map.
Described road base map generation method is specific as follows:
1) sets up road base map symbolic information database;
2) each the base map symbol in the road base map symbolic information database is set corresponding property value, and store this property value information;
3) each road base map symbol is set locator meams;
4) each road base map symbol is determined swap data, this swap data comprises the coding of symbol, all data of the locating information of symbol and unique definite symbol.
Described road base map symbol comprises 76 of symbols, drafting mode according to symbol, be divided into and be A, B, C, D, E, F, G and H eight large classifications, wherein category-A contains 39 of symbols, category-B contains 3 of symbols, and the C class contains 11 of symbols, and the D class contains 3 of symbols, the E class contains 17 of symbols, and F, G, H class comprise respectively 1 symbol; Specifically see Table 2
Table 2 road base map symbolic coding table
The following tabulation 3 of the attribute list structure of all kinds of road base map symbols is to shown in the table 10:
Table 3A class symbol attribute table
Table 4B class symbol attribute table
| Data type | Data declaration | Default value | Remarks |
| Int | The type of road sign | Symbolic coding | |
| PointF | The center point coordinate of road sign | ||
| Double | The gradient of climb and fall or speed limit | 0.0 | Up/down slope value of slope or speed limit |
Table 5C class symbol attribute table
| Data type | Data declaration | Default value | Remarks |
| Int | The type of road sign | Symbolic coding | |
| Int | The number of some set | 0 | A plurality of, be no less than two points |
| PointF | Concrete point |
Table 6D class symbol attribute table
Table 7E generic attribute table
| Data type | Data declaration | Acquiescence | Remarks |
| Int | The type of roadmarking | Symbolic coding | |
| Double | The width of graticule | 0 | |
| Double | The left hand edge line width | 0 | A counterclockwise side of the vector that is connected with stop with the starting point of graticule |
| Double | The right hand edge line width | 0 | A clockwise side of the vector that is connected with stop with the starting point of graticule |
| Int | The point set number of graticule | A plurality of, at least two points | |
| PointF | Concrete point | Point on the center line of graticule |
Table 8F generic attribute table
| Data type | Data declaration | Acquiescence | Remarks |
| Int | The type of roadmarking | Symbolic coding | |
| Double | The width of graticule | 0 | |
| Double | The left hand edge line width | 0 | A counterclockwise side of the vector that is connected with stop with the starting point of graticule |
| Double | The right hand edge line width | 0 | A clockwise side of the vector that is connected with stop with the starting point of graticule |
| Int | The point set number of graticule | A plurality of, at least two points | |
| PointF | Concrete point | Point on the center line of graticule |
Table 9G generic attribute table
| Data type | Data declaration | Acquiescence | Remarks |
| Int | The type of roadmarking | Symbolic coding | |
| Int | The point set number of graticule | A plurality of, at least two points, the right side of graticule generates the symbol dotted line | |
| PointF | Concrete point | Point on the center line of graticule |
Table 10H generic attribute table
The locator meams of each road base map symbol is as follows:
(1) locator meams of category-A symbol:
Adopt the single-point locator meams, determine the position of symbol by center point coordinate, the anglec of rotation is determined the sense of rotation of symbol;
(2) locator meams of category-B symbol:
Adopt the single-point locator meams, determine the position of symbol by center point coordinate, up/down slope value of slope or speed limit are stored as eigenwert;
(3) locator meams of C class symbol:
Adopt the frontier point locator meams, the turning point on gathering on the edge is determined position and the size of symbol by multiple spot;
(4) locator meams of D class symbol:
Take road axis as axis, symbol is divided into left and right sides symbol;
(5) locator meams of E class symbol:
Adopt the center line multipoint positioning, the point on the center line is determined the position of symbol, in other information storages such as the width of symbol and the attribute list;
(6) locator meams of F class symbol:
The isolation strip symbol is divided into isolation strip, left side and isolation strip, right side, determines respectively the position of symbol by left and right sides marginal point, and the isolation strip, left side generates dotted line on the right side of line segment working direction, and the isolation strip, right side generates dotted line in the left side of line segment working direction;
(7) locator meams of G class symbol:
Single line isolation strip symbol is not distinguished the left and right sides, generates dotted line on the right side of line segment working direction;
(8) locator meams of H class symbol:
Adopt multipoint positioning, determine the position of symbol.
The swap data of each road base map symbol is as follows:
(1) Interchange Format of category-A symbol:
" symbolic coding
Center point coordinate
The symbol anglec of rotation "
Take the craspedodrome arrow as example,
“30
(745.8026 673.3821)
0.3953”
(2) Interchange Format of category-B symbol:
" symbolic coding
Center point coordinate
Climb and fall value of slope or speed limit "
Take the speed limitation board symbol as example,
“82
(741.6150 673.5457)
40.0000”
(3) Interchange Format of C class symbol:
" symbolic coding
Center point coordinate
Climb and fall value of slope or speed limit "
Take the speed limitation board symbol as example,
“82
(741.6150 673.5457)
40.0000”
(4) Interchange Format of D class symbol:
" symbolic coding
The coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
Take the bridge symbol as example,
“88
5
(673.8873 679.9776)L
(682.3096 679.9776)L
(682.3096 655.7774)L
(674.4056 655.7774)L
(673.8873 679.9776)”
(5) Interchange Format of E class symbol:
" symbolic coding
Width
The left hand edge line width
The right hand edge line width
The coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
Take single yellow dashed signs as example,
“112
0.15
0.0
0.0
4
(636.1566 691.6339)L
(755.0154 691.6339)A
(781.1306 677.0574)A
(782.4320 647.1779)”
(6) Interchange Format of F class symbol:
" symbolic coding
Width
Left side coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point)
Right side coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
The swap data of isolation strip is,
“120
2.0
6
(722.4470 665.1463)A
(723.8697 667.6950)A
(726.6954 668.4271)L
(740.3606 668.3396)A
(742.3540 666.6659)A
(742.7695 664.0964)
6
(722.4470 665.1463)A
(723.0216 662.8443)A
(725.1625 661.8217)L
(740.8424 661.5592)A
(742.4487 662.3396)A
(742.7695 664.0964)
(7) Interchange Format of G class symbol:
" symbolic coding
The coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
The swap data of single line isolation strip is,
“141
7
(713.5336 660.2549)L
(716.2802 665.5831)L
(719.7664 661.3628)L
(718.2346 657.8810)L
(716.5443 658.1975)L
(715.4879 659.3053)L
(713.5336 660.2549)”
(8) Interchange Format of H class symbol:
" symbolic coding
The type of line
The type of filling
The coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
Sample data is,
140
1
2
5
(631.5864 666.6667)L
(652.1872 653.9647)L
(661.5416 672.5453)L
(649.7697 678.8438)L
(631.5864 666.6667)。
Compared with prior art, the present invention has the following advantages:
1) primary study the symbolic library design in the road base map, the attribute design of symbol, locator meams and the drafting mode of symbol, on this basis, utilize total station instrument coordinate to measure and gather basic path coordinate information, but just Fast Drawing road base map, the road base map coordinate that the method is drawn is accurate, can efficiently set up traffic hazard road base map database, be the service of fast processing road traffic accident;
2) be conducive to shorten the traffic hazard processing time, the present invention realizes drawing the road base map in advance, and call with drawn road base map at the scene when having an accident, and this has just been avoided on-the-spot drafting road base map, greatly shortens the traffic hazard processing time;
3) mapping precision is high, and the road base map relative accuracy that the present invention makes is high, is beneficial to the identification of accident responsibility;
4) data contain entirely, and the road base map that the present invention makes covers all elements of the road base map of code requirement, and its data message is abundant, and covering scope is wide;
5) be easy to transmit, preserve, the road base map that the present invention makes is the vector electronic chart, and drawing is clear, accurate, standard, and transmission is also more convenient with preservation.
Description of drawings
Fig. 1 is the locator meams figure of category-A symbol of the present invention;
Fig. 2 is the locator meams figure of category-B symbol of the present invention;
Fig. 3 is the locator meams figure of C class symbol of the present invention;
Fig. 4 is the locator meams figure of D class symbol of the present invention;
Fig. 5 is the locator meams figure of E class symbol of the present invention;
Fig. 6 is the locator meams figure of F class symbol of the present invention;
Fig. 7 is the locator meams figure of G class symbol of the present invention;
Fig. 8 is the locator meams figure of H class symbol of the present invention;
Fig. 9 is traffic accident situ map shape graphical diagram of the present invention;
Figure 10 is the measured result figure of embodiment 2;
Figure 11 is the measured result figure of embodiment 2;
Figure 12 is the measured result figure of embodiment 2.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment 1
A kind of road base map information processing method that is applicable to the rapid transit accident treatment may further comprise the steps:
1) gathers basic path coordinate information by total powerstation, and send it to computing machine;
2) computing machine is according to road base map generation method formation base road base map symbolic information, and connects drafting, generates the road base map.
Described road base map generation method is specific as follows:
1) sets up road base map symbolic information database;
2) each the base map symbol in the road base map symbolic information database is set corresponding property value, and store this property value information;
3) each road base map symbol is set locator meams;
4) each road base map symbol is determined swap data, this swap data comprises the coding of symbol, all data of the locating information of symbol and unique definite symbol.
Described road base map symbol comprises 76 of symbols, drafting mode according to symbol, be divided into and be A, B, C, D, E, F, G and H eight large classifications, wherein category-A contains 39 of symbols, category-B contains 3 of symbols, and the C class contains 11 of symbols, and the D class contains 3 of symbols, the E class contains 17 of symbols, and F, G, H class comprise respectively 1 symbol; As shown in Figure 9.
The locator meams of each road base map symbol is as follows:
(1) locator meams of category-A symbol:
Adopt the single-point locator meams, determine the position of symbol by center point coordinate, the anglec of rotation is determined the sense of rotation of symbol; Take the craspedodrome arrow as example, as shown in Figure 1.
(2) locator meams of category-B symbol:
Adopt the single-point locator meams, determine the position of symbol by center point coordinate, up/down slope value of slope or speed limit are stored as eigenwert, take speed limit as example, in speed limit 40 storages and the attribute data, as shown in Figure 2.
(3) locator meams of C class symbol:
Adopt the frontier point locator meams, the turning point on gathering on the edge is determined position and the size of symbol by multiple spot; Take bridge as example, the unique position of determining bridge of four angular coordinates of bridge, as shown in Figure 3.
(4) locator meams of D class symbol:
Take road axis as axis, symbol is divided into left and right sides symbol; Be divided into left side curb and right side curb such as curb, left and right sides symbol is paired, adopts both sides multipoint positioning mode, take curb as example, determines respectively the position of curb by the reference mark on the edge line of shoulder of subgrade formation of the left and right sides, as shown in Figure 4.
(5) locator meams of E class symbol:
Adopt the center line multipoint positioning, the point on the center line is determined the position of symbol, in other information storages such as the width of symbol and the attribute list; Take single yellow dotted line as example, the multiple spot on the center line determines the position of center line, and the width value of symbol determines the display width of symbol, as shown in Figure 5.
(6) locator meams of F class symbol:
The isolation strip symbol is divided into isolation strip, left side and isolation strip, right side, determines respectively the position of symbol by left and right sides marginal point, and the isolation strip, left side generates dotted line on the right side of line segment working direction, and the isolation strip, right side generates dotted line in the left side of line segment working direction; As shown in Figure 6.
(7) locator meams of G class symbol:
Single line isolation strip symbol is not distinguished the left and right sides, generates dotted line on the right side of line segment working direction; As shown in Figure 7.
(8) locator meams of H class symbol:
Adopt multipoint positioning, determine the position of symbol, as shown in Figure 8.
Example 2
Take Shanghai City Siping Road and crossing, Zhangwu road as example, this crossing is less, and the observation element comprises street lamp, signal lamp, dustbin, graticule etc., and observation data is as follows:
The drawing result as shown in figure 10
Example 3
Take road and bridge intersection, river, the north of a road, river, Shaoguan City of Guangdong Province Zhen as example, because this traffic intersection is not installed traffic lights, and traffick is many, belongs to traffic hazard and easily sends out the location.Gather altogether 275 field operation measurement points at this crossing, mainly comprise: highway sideline, lane line, people walk lateral road, isolation strip, diversion belt etc., observation data is as follows:
The drawing result as shown in figure 11.
Example 4
Take Shaoguan City of Guangdong Province good village highway and bridge crossing, cap peak as example, this crossing belongs to the mouth of newly repairing the roads, and its road sign tag line is neat and high-visible, and observation data is as follows:
The drawing result as shown in figure 12.
Claims (6)
1. a road base map information processing method that is applicable to the rapid transit accident treatment is characterized in that, may further comprise the steps:
1) gathers basic path coordinate information by total powerstation, and send it to computing machine;
2) computing machine is according to road base map generation method formation base road base map symbolic information, and connects drafting, generates the road base map.
2. a kind of road base map information processing method that is applicable to the rapid transit accident treatment according to claim 1 is characterized in that described road base map generation method is specific as follows:
1) sets up road base map symbolic information database;
2) each the base map symbol in the road base map symbolic information database is set corresponding property value, and store this property value information;
3) each road base map symbol is set locator meams;
4) each road base map symbol is determined swap data, this swap data comprises the coding of symbol, all data of the locating information of symbol and unique definite symbol.
3. a kind of road base map information processing method that is applicable to the rapid transit accident treatment according to claim 2, it is characterized in that, described road base map symbol comprises 76 of symbols, according to the drafting mode of symbol, is divided into and is A, B, C, D, E, F, G and H eight large classifications, wherein category-A contains 39 of symbols, category-B contains 3 of symbols, and the C class contains 11 of symbols, and the D class contains 3 of symbols, the E class contains 17 of symbols, and F, G, H class comprise respectively 1 symbol; Specifically see Table 2
Table 2 road base map symbolic coding table
4. a kind of road base map information processing method that is applicable to the rapid transit accident treatment according to claim 3 is characterized in that the following tabulation 3 of the attribute list structure of all kinds of road base map symbols is to shown in the table 10:
Table 3A class symbol attribute table
Table 4B class symbol attribute table
Table 5C class symbol attribute table
Table 6D class symbol attribute table
Table 7E generic attribute table
Table 8F generic attribute table
Table 9G generic attribute table
Table 10H generic attribute table
5. a kind of road base map information processing method that is applicable to the rapid transit accident treatment according to claim 3 is characterized in that the locator meams of each road base map symbol is as follows:
(1) locator meams of category-A symbol:
Adopt the single-point locator meams, determine the position of symbol by center point coordinate, the anglec of rotation is determined the sense of rotation of symbol;
(2) locator meams of category-B symbol:
Adopt the single-point locator meams, determine the position of symbol by center point coordinate, up/down slope value of slope or speed limit are stored as eigenwert;
(3) locator meams of C class symbol:
Adopt the frontier point locator meams, the turning point on gathering on the edge is determined position and the size of symbol by multiple spot;
(4) locator meams of D class symbol:
Take road axis as axis, symbol is divided into left and right sides symbol;
(5) locator meams of E class symbol:
Adopt the center line multipoint positioning, the point on the center line is determined the position of symbol, in other information storages such as the width of symbol and the attribute list;
(6) locator meams of F class symbol:
The isolation strip symbol is divided into isolation strip, left side and isolation strip, right side, determines respectively the position of symbol by left and right sides marginal point, and the isolation strip, left side generates dotted line on the right side of line segment working direction, and the isolation strip, right side generates dotted line in the left side of line segment working direction;
(7) locator meams of G class symbol:
Single line isolation strip symbol is not distinguished the left and right sides, generates dotted line on the right side of line segment working direction;
(8) locator meams of H class symbol:
Adopt multipoint positioning, determine the position of symbol.
6. a kind of road base map information processing method that is applicable to the rapid transit accident treatment according to claim 3 is characterized in that the swap data of each road base map symbol is as follows:
(1) Interchange Format of category-A symbol:
" symbolic coding
Center point coordinate
The symbol anglec of rotation "
Take the craspedodrome arrow as example,
“30
(745.8026 673.3821)
0.3953”
(2) Interchange Format of category-B symbol:
" symbolic coding
Center point coordinate
Climb and fall value of slope or speed limit "
Take the speed limitation board symbol as example,
“82
(741.6150 673.5457)
40.0000”
(3) Interchange Format of C class symbol:
" symbolic coding
Center point coordinate
Climb and fall value of slope or speed limit "
Take the speed limitation board symbol as example,
“82
(741.6150 673.5457)
40.0000”
(4) Interchange Format of D class symbol:
" symbolic coding
The coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
Take the bridge symbol as example,
“88
5
(673.8873 679.9776)L
(682.3096 679.9776)L
(682.3096 655.7774)L
(674.4056 655.7774)L
(673.8873 679.9776)”
(5) Interchange Format of E class symbol:
" symbolic coding
Width
The left hand edge line width
The right hand edge line width
The coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
Take single yellow dashed signs as example,
“112
0.15
0.0
0.0
4
(636.1566 691.6339)L
(755.0154 691.6339)A
(781.1306 677.0574)A
(782.4320 647.1779)”
(6) Interchange Format of F class symbol:
" symbolic coding
Width
Left side coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point)
Right side coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
The swap data of isolation strip is,
“120
2.0
6
(722.4470 665.1463)A
(723.8697 667.6950)A
(726.6954 668.4271)L
(740.3606 668.3396)A
(742.3540 666.6659)A
(742.7695 664.0964)
6
(722.4470 665.1463)A
(723.0216 662.8443)A
(725.1625 661.8217)L
(740.8424 661.5592)A
(742.4487 662.3396)A
(742.7695 664.0964)
(7) Interchange Format of G class symbol:
" symbolic coding
The coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
The swap data of single line isolation strip is,
“141
7
(713.5336 660.2549)L
(716.2802 665.5831)L
(719.7664 661.3628)L
(718.2346 657.8810)L
(716.5443 658.1975)L
(715.4879 659.3053)L
(713.5336 660.2549)”
(8) Interchange Format of H class symbol:
" symbolic coding
The type of line
The type of filling
The coordinate points number
Coordinate figure and rear any connected mode
…
Coordinate figure (last point) "
Sample data is,
140
1
2
5
(631.5864 666.6667)L
(652.1872 653.9647)L
(661.5416 672.5453)L
(649.7697 678.8438)L
(631.5864 666.6667)
。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400498A (en) * | 2013-08-14 | 2013-11-20 | 中国人民解放军第三军医大学第三附属医院 | Accident spot map generation method based on electronic map and data acquisition system |
| CN104537837A (en) * | 2014-12-31 | 2015-04-22 | 小米科技有限责任公司 | Method, device and system for obtaining traffic signs and determining traffic routes |
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| CN2166019Y (en) * | 1993-08-09 | 1994-05-25 | 公安部交通管理科学研究所 | Universal traffic graphic mother panel |
| CN1442835A (en) * | 2002-03-05 | 2003-09-17 | 麦士威(香港)电子技术有限公司 | Programme setting method of electronic map |
| CN1477567A (en) * | 2003-07-11 | 2004-02-25 | 中国地质大学（武汉） | Computer-aided geologic investigation system based on portable machine |
| CN101726308A (en) * | 2008-10-15 | 2010-06-09 | 北京龙图通信息技术有限公司 | Method for generating crossing actual scene induced map of navigation electronic map |
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2011
- 2011-09-28 CN CN201110301289.7A patent/CN103021256B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2166019Y (en) * | 1993-08-09 | 1994-05-25 | 公安部交通管理科学研究所 | Universal traffic graphic mother panel |
| CN1442835A (en) * | 2002-03-05 | 2003-09-17 | 麦士威(香港)电子技术有限公司 | Programme setting method of electronic map |
| CN1477567A (en) * | 2003-07-11 | 2004-02-25 | 中国地质大学（武汉） | Computer-aided geologic investigation system based on portable machine |
| CN101726308A (en) * | 2008-10-15 | 2010-06-09 | 北京龙图通信息技术有限公司 | Method for generating crossing actual scene induced map of navigation electronic map |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400498A (en) * | 2013-08-14 | 2013-11-20 | 中国人民解放军第三军医大学第三附属医院 | Accident spot map generation method based on electronic map and data acquisition system |
| CN103400498B (en) * | 2013-08-14 | 2015-12-09 | 中国人民解放军第三军医大学第三附属医院 | Based on scene of the accident drawing generating method and the generation system of electronic chart and data acquisition system (DAS) |
| CN104537837A (en) * | 2014-12-31 | 2015-04-22 | 小米科技有限责任公司 | Method, device and system for obtaining traffic signs and determining traffic routes |
| CN104537837B (en) * | 2014-12-31 | 2017-04-12 | 小米科技有限责任公司 | Method, device and system for determining traffic routes |
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