Method and device for obtaining road plane alignment and longitudinal section alignment based on on-board self-diagnosis system
A vehicle-mounted self-diagnosis and longitudinal section technology, which is applied to measuring devices, section drawing, instruments, etc.
Active Publication Date: 2017-12-08
BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST
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[0003] The object of the present invention is to provide a method and device for obtaining road plane alignment and longitudinal section alignment based on the on-board self-diagnosis system, so as to solve the problem of obtaining the driving track of the vehicle on the plane and longitudinal plane during the driving process of the vehicle by driving the vehicle, thereby Technical Problems of Approximately Obtaining Plane Alignment and Longitudinal Alignment of Road in Tunnel
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[0033]The method of obtaining road plane alignment and longitudinal alignment based on the on-board self-diagnosis system, based on the OBD system and multi-sensor cooperative work, simultaneously collects the vehicle speed v of the OBD system, and the instantaneous orientation calculated by the gyroscope, gravity accelerometer and magnetometer Angle Aerial, the elevation value h calculated by the temperature and pressure sensor, and then the displacement value s is obtained according to the integral value of v and the time interval t, and the plane driving trajectory is obtained by using the relationship between the displacement value s and the azimuth angle in the time interval t, and the time interval t is used The relationship between the internal displacement value s and the elevation value h obtains the longitudinal driving trajectory.
[0034] see figure 1 As shown, the road plane alignment and longitudinal section alignment devices are obtained based on the vehicle dia...
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The invention discloses a method and a device for acquiring horizontal alignment and vertical alignment of a road on the basis of a vehicle-mounted self-diagnosis system. The device has the functions that a vehicle speed of an OBD system and an instantaneous azimuth angle and an elevation value of a sensor are acquired, a displacement value s is acquired according to an integral of the speed to a time t, a planar track is acquired according to the relation of the displacement value and the angle, a vertical section track is acquired according to the relation of the displacement value and the elevation value, and thus road alignment can be indirectly acquired. By adoption of the device, the moving track of a vehicle can be recorded in a state that a GPS signal is lost, so that a conventional mode that the moving track is recorded on the basis of a GPS is avoided, and the device is an inventive device for acquiring horizontal alignment and vertical alignment of the road in a state that the GPS signal cannot be received (such as working conditions of underground roads and tunnels).
Description
technical field [0001] The invention belongs to the technical fields of road design, road measurement, traffic research and the like. Specifically, it relates to a method for obtaining road plane alignment and vertical section alignment based on a vehicle diagnosis system. Background technique [0002] With the continuous development and expansion of the scale of urban construction, the development intensity of urban space continues to increase, and the resources to be developed in above-ground space are becoming scarcer and scarcer, which makes city builders shift the perspective of development from above-ground to underground. More and more underground roads are being built in cities, and underground roads have gradually become an effective engineering method to solve the shortage of ground resources and relieve traffic congestion. However, since the construction of underground roads in the whole country started late, and the research on the characteristics of underground...
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IPC IPC(8): G01C15/00G01C7/06
CPCG01C7/06G01C15/00
Inventor 吴楠
Owner BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST