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Automatic judgment system and method for intelligent automobile race beacon group

A technology for smart cars and beacons, applied in the field of scientific and technological competitions, can solve the problems of inability to flexibly set the number of beacons, inability to fully simulate the competition process, and low efficiency, and achieve flexible layout of beacons, easy on-site wiring, and increased signal detection range. Effect

Inactive Publication Date: 2016-08-31
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual method is to make several simple beacons according to the requirements of the competition. The beacons need to manually set the beacon address, so the number of beacons is fixed, and the number of beacons cannot be flexibly set
Although this method basically meets the requirements of the competition, it is not efficient and cannot completely simulate the competition process.
[0006] In order to realize that the beacons are lit sequentially according to the order of the competition, the address of each beacon needs to be determined. In the prior art, the method of independently setting the beacon address is usually used, which is cumbersome

Method used

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  • Automatic judgment system and method for intelligent automobile race beacon group
  • Automatic judgment system and method for intelligent automobile race beacon group
  • Automatic judgment system and method for intelligent automobile race beacon group

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0176]The detection effect of the present invention on permanent magnets with the same height and different speeds passing through the detection coil is tested through experiments. In this experiment, a linear guide rail is used to drive a permanent magnet to move. The permanent magnet is 1.5 cm away from the ground and passes over the detection coil at a speed of 1 m / s to 0.2 m / s. The waveform of the detection signal filtered by the filter module 03 is shown in the figure As can be seen from the figure, the strength of the detection signal decreases with the reduction of the permanent magnet speed, and when the moving speed of the permanent magnet is lower than a certain speed lower limit, the present invention will not be able to detect the detection signal generated when the permanent magnet crosses the detection coil , it can be seen from the figure that the lower limit of the speed is 0.1 m / s, and the lower limit of the speed is far lower than the running speed of the car ...

Embodiment 2

[0178] The detection effect of the present invention on permanent magnets with the same speed and different heights passing through the detection coil is tested through experiments. In this experiment, a linear guide rail is used to drive a permanent magnet to move. The permanent magnet moves at a speed of 1 m / s and passes over the detection coil at a distance of 1 cm, 2 cm and 3 cm from the ground respectively. The waveform of the detection signal filtered by the filter module 03 is as follows: As shown in the figure, it can be seen from the figure that the intensity of the detection signal decreases with the increase of the height of the permanent magnet, and when the height of the permanent magnet is higher than a certain height upper limit, the present invention will not be able to detect the detection of the permanent magnet passing over the detection coil. It can be seen from the figure that the upper limit of the height is 3 centimeters, and the smart car competition sti...

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Abstract

The invention discloses an automatic judgment system and method for an intelligent automobile race beacon group. The automatic judgment system adopts the electromagnetic induction principle that it is detected if a car model approaches a beacon by measuring change of magnetic flux of the inner part of a detecting coil; a special beacon enumeration process allows beacons to automatically allocate addresses, and then the trouble that the addresses of the beacons needs to be set independently can be avoided. The automatic judgment system is high in detection accuracy and sensitive in respond; the number of the beacons can be flexibly arranged, and scene wiring is easy; a detection signal is excellent in linear and high in accuracy by adoption of an integrated operational amplifier; useful signals can be effectively selected, interference signals can be filtered out, and then the range of signal detection can be greatly increased; and the automatic judgment system can achieve automatic control in an on-line working mode, and can achieve manual operation in a manual working mode.

Description

technical field [0001] The invention relates to the field of scientific and technological competitions, in particular to an automatic referee system and method applied in smart car competitions. Background technique [0002] The college student smart car competition, which is widely carried out every year in China, is an exploratory engineering practice activity for college students organized by the Ministry of Education's automation professional teaching committee. The 11th College Student Smart Car Competition (2015) introduced the competition content of the beacon group for the first time. The beacon group no longer sets a specified wide track, but sets several beacons in the competition venue to send flashing red light and modulated infrared light, and the car models do directional movement under the guidance of the beacons. The beacon adopts a hemispherical omnidirectional lamp base, and an array of red and infrared light-emitting diodes is installed inside. This comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A63B71/06
CPCA63B71/0605
Inventor 卓晴王京春江永亨滕昕鲁畅王福洋
Owner TSINGHUA UNIV
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