Method for drawing display of bus on straight line simulated diagram by applying tracing points
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A trajectory point and simulation map technology, applied in the field of public transport route scheduling, can solve problems such as incoherence, inability to intuitively reflect vehicle distance information, and inconsistency in vehicle location updates.
Active Publication Date: 2013-01-30
HUALU ZHIDA TECH
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Problems solved by technology
[0007] 1. The display of station and vehicle distance information is not intuitive: the stations are evenly distributed on the road, and the actual distance ratio between stations cannot be displayed intuitively; vehicles operating on the road also cannot intuitively reflect the distance information between vehicles, that is, the vehicle distance information;
[0008] 2. The display of vehicle information is not true: because the vehicle position mainly depends on the vehicle arrival and departure information, when the vehicle uploads to the current site, the vehicle will be displayed at the current site. Update a data packet, if the latitude and longitude changes, move an interval from the current station to the next station, until the next time the vehicle uploads the information to the next station, it will be displayed at the next station; when the distance between stations is small, or the vehicle is pressed If there is a situation, the update of the vehicle position will be incoherent, the vehicle will not enter the station for a long time, or it will not match the actual situation;
[0009] 3. Compared with the average station distance method, the actual station distance method solves the problem that the station and vehicle distance information display is not intuitive, but due to the defects of the station and vehicle depiction mechanism, it cannot fundamentally deal with the pressing of vehicles, too small station distance, and vehicle position. The update is inconsistent, the driver manually reports the station and other abnormal situations
Method used
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Embodiment 1
[0090] Such as figure 2 The latitude and longitude coordinates of stations A, B, C, and D of the bus line shown are as follows: (unit °)
[0091] A (32.0000, 126.0000), B (32.0000, 126.0100), C (32.0080, 126.0100), D (32.0070, 126.0185).
[0092] The latitude and longitude coordinates of the track points 1-8 of the bus lines actually collected are:
[0094] (1) According to the longitude and latitude coordinates between two points and the radius of the earth R= 6371 kilometers, first calculate the formula of the shortest distance between two points on a sphere with radius R, arc C=R*arccos[sin(w1)sin(w2) +cos(w1)cos(w2)*cos(j1-j2)] to calculate the shortest distance between two points, and then according to the distance formula D=R*Arccos(C)*π / 180 to calculate every two original ...
Embodiment 2
[0138] Such as Figure 6 The latitude and longitude coordinates of the stations A, B, C, D, E, and F of the bus line shown are as follows: (unit °)
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Abstract
The invention discloses a method for drawing display of a bus on a straight line simulated diagram by applying tracing points and relates to the field of public transport line scheduling. Actual bus line advancing route tracing point information is acquired by a GIS (Geographic Information System) operation tool and is matched with longitude and latitude coordinates for calculation, then stations are projected onto the straight line simulated diagram, the position information of an operating bus transponded in real time by a GPS (Global Position System) positioning service is received by a computer, and after the position information of the operating bus is matched with the actual longitudes and latitudes of the tracing points drawn on the straight line simulated diagram for calculation, a bus mark is displayed on the straight line simulated diagram. The method disclosed by the invention has the advantages that the proportion of station spacing and bus spacing can be visually displayed; the position information of the bus can be actually reflected; when station reporting of the bus is abnormal, or continuous station reporting is caused by the manual intervention of a driver, the actual bus information can not be disturbed; and a tracing point auxiliary insertion method is adopted to solve the problem that station matching and a bus driving track are anamorphic on the straight line simulated diagram due to the over-small acquisition amount of the tracing points.
Description
technical field [0001] The invention relates to the field of public transport line scheduling, in particular to a method for drawing vehicles using track points and displaying them on a straight line simulation map. Background technique [0002] Urban public transport plays an important role in urban traffic, and bus operation and dispatching is the core of the management business of the entire bus enterprise. Improving the operation and scheduling level of urban public transport is an important way to improve the service quality of urban public transport and increase the attractiveness of public transport. Line scheduling is the basic mode of urban bus scheduling. In order to show the operation of vehicles on the line more intuitively, a "line simulation map" is usually used to graphically display information such as lines, stations, and vehicles on the computer user interface. The route is simplified into two parallel straight lines, and the stations are depicted on the p...
Claims
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