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Unmanned vehicle early warning method, device and unmanned vehicle

A technology of early warning devices and unmanned vehicles, applied in signal devices, portable emergency signal devices, vehicle components, etc., can solve problems such as low safety, affecting public transportation safety, and threats to the safety of vehicles coming from behind, so as to achieve reasonable avoidance and improve safety effect

Active Publication Date: 2019-01-01
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the vehicle breaks down, the unmanned vehicle will stagnate on the road, which will pose a safety threat to the vehicles coming from behind, affecting the safety of public transportation, and the safety is low

Method used

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  • Unmanned vehicle early warning method, device and unmanned vehicle
  • Unmanned vehicle early warning method, device and unmanned vehicle
  • Unmanned vehicle early warning method, device and unmanned vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0030] figure 1 It is a flow chart of an unmanned vehicle early warning method provided in Embodiment 1 of the present invention. This method is applied to an electronic control unit (Electronic Control Unit, ECU for short) of an unmanned vehicle. The ECU of an unmanned vehicle is also called the brain of an unmanned vehicle, the Human-vehicle driving brain or unmanned vehicle-mounted brain, etc. The method includes:

[0031] S110. Determine the early warning type according to the operating parameters of the unmanned vehicle.

[0032] After the unmanned vehicle starts, obtain various operating parameters of the unmanned vehicle. The operating parameters of the unmanned vehicle may include at least one of the following parameters: engine parameters, tire pressure parameters, battery parameters and fuel tank parameters. Operating parameters can be obtained through sensors placed on different parts of the unmanned vehicle. The sensor may be at least one of a tire pressure sen...

Embodiment 2

[0043] Figure 5 The flow chart of the unmanned vehicle early warning method provided by the second embodiment of the present invention, this embodiment is based on the above embodiment, further, S130, projecting the warning sign to the target projection position corresponding to the early warning type, can be implemented as:

[0044] S131. Determine the target projection position corresponding to the early warning type.

[0045] Use the projection position mapping table to save the mapping relationship between the warning type and the target projection position. The projection position mapping table is shown in Table 1, where the projection position of the fault warning is 75 meters in the direction of the vehicle behind; the projection position of the maintenance warning is 1.5 meters above the vehicle. The above two parameters can be converted into playback parameters used when the projection device is projected to the position, such as the angle, height, and focal length of...

Embodiment 3

[0056] When implementing the above embodiments, if there is an obstacle between the projection device and the target projection location, the image of the warning sign will be blocked by the obstacle, causing the image of the warning sign to be incomplete or even completely blocked. Based on, Figure 7 The flow chart of the unmanned vehicle early warning method provided by the third embodiment of the present invention. In this embodiment, on the basis of the above embodiments, further, S131. Determine the target projection position corresponding to the early warning type, which can be implemented as:

[0057] S301. Determine a preset projection position corresponding to the warning type.

[0058] In this embodiment, the preset projection position is determined according to the projection position mapping table, and the target projection position in the projection position mapping table is determined as the preset projection position.

[0059] S302. Identify whether there is a...

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Abstract

The invention discloses an unmanned vehicle early warning method and device and an unmanned vehicle. The method includes the steps that an early warning type is determined according to operation parameters of the unmanned vehicle; an early warning mark is determined according to the early warning type; and the early warning mark is projected to the target projection position corresponding to the early warning type. By the adoption of the embodiment, whether a fault happens or not and the corresponding early warning type can be determined according to the operation parameters of the unmanned vehicle, then the warning mark is projected according to the early warning type, other vehicles can know which state the unmanned vehicle is in through the projected warning mark in time so as to conduct reasonable avoidance, rescue and maintenance, and the safety of the unmanned vehicle and other vehicles is improved.

Description

technical field [0001] Embodiments of the present invention relate to unmanned vehicle technology, in particular to an unmanned vehicle early warning method, device and unmanned vehicle. Background technique [0002] Driverless car, also known as unmanned car, is a kind of smart car that mainly relies on the intelligent driving system in the car to realize driverless driving. With the continuous development of unmanned vehicle technology, unmanned vehicles can drive in a variety of road environments including highways and urban roads. [0003] At present, unmanned vehicles can turn on the indicator lights on the vehicle according to the driving direction and ambient light. However, when the vehicle breaks down, the unmanned vehicle will stagnate on the road, which will pose a safety threat to the vehicles coming from behind, affect the safety of public transportation, and have low safety. Contents of the invention [0004] The present invention provides an unmanned vehic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60Q7/00
CPCB60Q7/00
Inventor 张乙凡
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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