JPH0443218U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1a is an external perspective view of a vehicle travel guide device showing an embodiment of the present invention, FIG. 1b is a diagram showing its installed state, FIG. 2 is a block diagram of a control circuit of an embodiment of the present invention, and FIG. The figure shows the basic configuration of the geomagnetism detection unit.
Figure 4 is a diagram showing the installation state of the geomagnetism detection unit, Figure 5
The figure is a diagram showing the relationship between memory addresses and data in one embodiment, FIG. 6 is a diagram explaining the operation of one embodiment of the present invention, and FIGS. 7a to 7c are diagrams showing the first control operation of the present invention. Flowchart showing examples, Part 8
The figure is a flowchart showing the main part of the second example of control operation of the present invention. 2...Display panel, 3...Data input switch, 4...Traveling switch, 5...Scale setting switch, 8a to 8d...Numeric display, 13...Control unit,
15...Map meter, 21...Wheel rotation speed detection section, 22...Display section, 23...Geomagnetism detection section.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A pair of geomagnetic sensors with different orientation angles relative to the geomagnetism are fixed to a vehicle, and the azimuth angle of the vehicle traveling relative to the geomagnetism is detected by the vector sum of the output signals of the respective magnetic sensors. A vehicle characterized in that it comprises: an azimuth detection means for measuring the angular velocity of the azimuth; and a turning determination means for determining that the vehicle has turned when the angular velocity is equal to or greater than a predetermined value. A turning point detection device for driving roads. (2) azimuth detecting means for detecting the azimuth of the vehicle with respect to the earth's magnetism by a pair of geomagnetic sensors fixed to the vehicle with different orientation angles to the earth's magnetism, and the vector sum of the output signals of the respective magnetic sensors; wheel rotation speed detection means for outputting a pulse signal synchronized with rotation; azimuth angle change amount measuring means for measuring the amount of change in the azimuth angle per unit number of pulses by the wheel rotation speed detection means; and change in the azimuth angle. 1. A bending point detection device for a vehicle running road, comprising: bending determining means for determining that the vehicle has turned when the amount is equal to or greater than a predetermined value. (3) Distance data for the travel section and vehicle right/left turn information for the end of each travel section in correspondence with each travel section that is sequentially divided by the departure point, turn points, arrival point, etc. of the scheduled vehicle travel. A storage means for storing information; and azimuth detection in which a pair of geomagnetic sensors having mutually different orientation angles relative to the geomagnetic field are fixed to the vehicle, and the azimuth angle of the vehicle traveling relative to the geomagnetic field is detected based on the vector sum of the output signals of the respective magnetic sensors. angular velocity measuring means for measuring the angular velocity of the azimuth; turning determining means for determining that the vehicle has turned when the angular velocity is greater than or equal to a predetermined value; and wheels for outputting pulse signals synchronized with rotation of the wheels. a rotation speed detecting means; and loading distance data of the relevant travel section in the storage means based on a travel start signal at the starting point or determination of a turn by the turn determination means, and subtracting the distance data based on the pulse signal. a distance counting means for counting, and distance information based on residual distance data by the distance counting means while traveling in each traveling section;
A vehicle travel guide device comprising: display means for displaying left and right turn information stored in the storage means for each end of the travel section. (4) Distance data for the travel section and vehicle right/left turn information for the end of each travel section in correspondence with each travel section that is sequentially divided by the departure point, turn points, arrival point, etc. of the scheduled vehicle travel. A storage means for storing information; and azimuth detection in which a pair of geomagnetic sensors having mutually different orientation angles relative to the geomagnetic field are fixed to the vehicle, and the azimuth angle of the vehicle traveling relative to the geomagnetic field is detected based on the vector sum of the output signals of the respective magnetic sensors. wheel rotation speed detection means for outputting a pulse signal synchronized with the rotation of the wheels; azimuth angle change amount measurement means for measuring the amount of change in each of the azimuths per unit number of pulses by the wheel rotation speed detection means; a turn determination means for determining that the vehicle has turned when the amount of change in the azimuth is greater than or equal to a predetermined value; distance counting means for loading distance data of a traveling section and subtracting and counting the distance data based on the pulse signal; distance information based on the remaining distance data by the distance counting means while traveling in each traveling section;
A vehicle travel guide device comprising: display means for displaying left and right turn information stored in the storage means for each end of the travel section.