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On-board warning apparatus and warning method

A warning device, driver's technology, applied in the direction of measuring device, signal device, safety device of power plant control mechanism, etc.

Active Publication Date: 2011-03-02
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The first predetermined period of time is different from the second predetermined period of time

Method used

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  • On-board warning apparatus and warning method
  • On-board warning apparatus and warning method

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Embodiment Construction

[0018] [First Exemplary Embodiment] FIG. 1 is a system block diagram showing one example of the main structure of a warning system including a vehicle-mounted warning device according to a first exemplary embodiment of the present invention. The in-vehicle warning device in this exemplary embodiment includes a warning control ECU 110A, a driver monitoring ECU 210 , a driver monitoring camera 212 , a warning ECU 230 , and a buzzer 240 .

[0019] The warning control ECU 110A includes various hardware such as a CPU constructed centering on an appropriate processor or a microcomputer and executing various processes to be described later, a ROM storing programs and data for executing those various processes, storing Readable / writable RAM for calculation results, etc., timers, counters, input interfaces, and output interfaces, etc. Other ECUs 210 and 230 may also have similar hardware structures, but of course the programs and data (software) stored in the ROM will be different acco...

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Abstract

An on-board warning apparatus of the invention includes an inattentive time measuring device that measures a duration of an inattentive state of a driver; a dozing time measuring device that measures An on-board warning apparatus of the invention includes an inattentive time measuring device that measures a duration of an inattentive state of a driver; a dozing time measuring device that measuresa duration of a dozing state of the driver; a first warning output device that warns the driver when the measured inattentive time exceeds a first predetermined period of time Ta; and a second warninga duration of a dozing state of the driver; a first warning output device that warns the driver when the measured inattentive time exceeds a first predetermined period of time Ta; and a second warning output device that warns the driver when the measured dozing time exceeds a second predetermined period of time Tb. The first predetermined time Ta is shorter than the second predetermined period ofoutput device that warns the driver when the measured dozing time exceeds a second predetermined period of time Tb. The first predetermined time Ta is shorter than the second predetermined period oftime Tb.time Tb.

Description

technical field [0001] The present invention relates to an in-vehicle warning device and a warning method that warns a driver using a result of measuring a driver's inattention time and a driver's dozing time or a driver's eyes closing time. Background technique [0002] For example, Japanese Patent Application Publication No. 2002-219968 (JP-A-2002-219968) describes a warning device that issues a warning when a driver is inattentive or dozes off while driving. The warning device comprises: a driver state detection device, which is used to detect the driver's negligence state and a dozing state; a measuring device, which is used to measure the driver's negligence state and the duration of the dozing state; a vehicle speed detection device, which is used for Detect vehicle speed; inter-vehicle distance detection device, which is used to detect the distance of the vehicle in front; inter-vehicle time calculation device, which is used to calculate the time to the vehicle in fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/06B60K28/06A61B5/18B60Q1/52G01S17/93
Inventor 鱼住重康大上健一
Owner TOYOTA JIDOSHA KK