CN203192177U - Fatigue driving alarm device based on single-chip microcomputer - Google Patents
Fatigue driving alarm device based on single-chip microcomputer Download PDFInfo
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- CN203192177U CN203192177U CN 201320182246 CN201320182246U CN203192177U CN 203192177 U CN203192177 U CN 203192177U CN 201320182246 CN201320182246 CN 201320182246 CN 201320182246 U CN201320182246 U CN 201320182246U CN 203192177 U CN203192177 U CN 203192177U
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- chip microcomputer
- measuring instrument
- operational amplifier
- brain wave
- wave measuring
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Abstract
The utility model discloses a fatigue driving alarm device based on a single-chip microcomputer. The device comprises a brain wave measuring instrument, an operational amplifier, an A/D converter, the single-chip microcomputer and a buzzer. An output terminal of the brain wave measuring instrument is connected with the operational amplifier. The operational amplifier is connected with the single-chip microcomputer through the A/D converter. The output terminal of the single-chip microcomputer is connected with the buzzer. The device of the utility model possesses good practicality. The structure is simple and manufacturing cost is low. A fatigue degree of a driver can be detected in real time. When the fatigue degree of the driver exceeds a set value of a program, the single-chip microcomputer makes the buzzer whistle so that the driver is prompted to react rapidly and safety driving of an automobile is guaranteed. Traffic accidents can be effectively prevented from happening and the driving safety of the automobile is increased.
Description
Technical field
The utility model relates to fields such as electronic technology and automotive operation, is specifically related to a kind of SCM Based fatigue driving warning device.
Background technology
Along with the increasing of automobile use amount and the quickening of rhythm of life, the incidence of traffic hazard also increases severely with day.Show that through investigation driver tired driving is a big factors that causes traffic hazard to take place.The problem of relevant fatigue driving more and more is subject to people's attention.The warning device product of existing pre-anti-fatigue-driving has a lot, such as whether rotate in setting-up time to judge whether the driver is tired by rotary angle transmitter measurement direction dish, judge whether fatigue driving by whether opening eyes in the test driver setting-up time in addition, etc.But they or structure realize complicated, or accuracy is lower, therefore, studies a kind of simple in structure, accurate test result fatigue driving warning device, guarantee that for the travel conditions that improves automobile traffic safety is very to be necessary.
Summary of the invention
The purpose of this utility model is, a kind of SCM Based fatigue driving warning device is provided, this device can detect driver's degree of fatigue in real time, to detect fatigue strength then is converted into electric signal and passes to signal processing unit, when detected fatigue strength was higher than the instrument specified value, hummer was blown a whistle, and reminded driver safety to drive, thereby can effectively prevent the generation of traffic hazard, improve the driving safety of automobile.
In order to realize above-mentioned technical assignment, the utility model adopts following technical scheme to be achieved:
A kind of SCM Based fatigue driving warning device comprises brain wave measuring instrument, operational amplifier, A/D converter, single-chip microcomputer and hummer; Wherein, described brain wave measuring instrument, the output terminal concatenation operation amplifier of brain wave measuring instrument, operational amplifier is connected with single-chip microcomputer by A/D converter, and the output terminal of single-chip microcomputer connects hummer.
The utility model also comprises following other technologies feature:
Described single-chip microcomputer is selected the AVR single-chip microcomputer, and single-chip microcomputer is installed on the automobile instrument panel.
Described brain wave measuring instrument adopts the brain wave measuring instrument of M326265 model.
Described operational amplifier adopts the LM725 operational amplifier.
Described A/D converter adopts the ADC0820 converter.
SCM Based fatigue driving warning device of the present utility model has good practicality, also have simple in structure, characteristics such as cost of manufacture is low.
Description of drawings
Fig. 1 is the structured flowchart of SCM Based fatigue driving warning device of the present utility model.
Fig. 2 is the workflow diagram of SCM Based fatigue driving warning device of the present utility model.
The utility model is described in further detail below in conjunction with the structured flowchart of SCM Based fatigue driving warning device and workflow diagram.
Embodiment
As shown in Figure 1, SCM Based fatigue driving warning device of the present utility model comprises brain wave measuring instrument, operational amplifier, A/D converter, single-chip microcomputer and hummer.Wherein, described brain wave measuring instrument, the output terminal concatenation operation amplifier of brain wave measuring instrument, operational amplifier is connected with single-chip microcomputer by A/D converter, and the output terminal of single-chip microcomputer connects hummer.
In the present embodiment, described single-chip microcomputer is selected the AVR single-chip microcomputer, and single-chip microcomputer is installed on the panel board.Described brain wave measuring instrument adopts the brain wave measuring instrument of M326265 model.Operational amplifier adopts the LM725 operational amplifier, and A/D converter adopts the ADC0820 converter.
As shown in Figure 2, workflow of the present utility model is as follows:
Give the power supply of AVR single-chip microcomputer behind the automobile starting, program initialization begins to carry out, and after M326265 brain wave measuring instrument starts, detects driver's fatigue strength in real time, and the signal of detected driver fatigue degree is exported with electric signal.Since the electric signal exported of M326265 brain wave measuring instrument a little less than, the AVR single-chip microcomputer detect less than, so the electric signal of M326265 brain wave measuring instrument output is sent into the LM725 operational amplifier, to send into the ADC0820 converter after the driver fatigue degree signal amplification shaping, carry out sending to the AVR single-chip microcomputer after the analog digital conversion, the AVR single-chip microcomputer compares fatigue strength value and the setting value that receives, whether the fatigue strength of judging the driver is too high, if driver's fatigue strength surpasses the safety value of setting, the AVR single-chip microcomputer will be controlled warning circuit blows a whistle hummer, reminds the driver to want safety traffic; If do not meet or exceed the safety value of setting, the program in the AVR single-chip microcomputer is with circular flow so, and warning circuit is inoperative.
Claims (5)
1. a SCM Based fatigue driving warning device is characterized in that, comprises brain wave measuring instrument, operational amplifier, A/D converter, single-chip microcomputer and hummer; Wherein, described brain wave measuring instrument, the output terminal concatenation operation amplifier of brain wave measuring instrument, operational amplifier is connected with single-chip microcomputer by A/D converter, and the output terminal of single-chip microcomputer connects hummer.
2. SCM Based fatigue driving warning device as claimed in claim 1 is characterized in that, described single-chip microcomputer is selected the AVR single-chip microcomputer, and single-chip microcomputer is installed on the automobile instrument panel.
3. SCM Based fatigue driving warning device as claimed in claim 1 is characterized in that, described brain wave measuring instrument adopts the brain wave measuring instrument of M326265 model.
4. SCM Based fatigue driving warning device as claimed in claim 1 is characterized in that, described operational amplifier adopts the LM725 operational amplifier.
5. SCM Based fatigue driving warning device as claimed in claim 1 is characterized in that, described A/D converter adopts the ADC0820 converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182246 CN203192177U (en) | 2013-04-11 | 2013-04-11 | Fatigue driving alarm device based on single-chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182246 CN203192177U (en) | 2013-04-11 | 2013-04-11 | Fatigue driving alarm device based on single-chip microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192177U true CN203192177U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320182246 Expired - Fee Related CN203192177U (en) | 2013-04-11 | 2013-04-11 | Fatigue driving alarm device based on single-chip microcomputer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203192177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586388A (en) * | 2015-01-26 | 2015-05-06 | 山东大学齐鲁医院 | Fatigue driving detection system based on electroencephalogram recognition |
| US20220369978A1 (en) * | 2021-05-18 | 2022-11-24 | Hyundai Mobis Co., Ltd. | System and method for determining driver's fatigue |
-
2013
- 2013-04-11 CN CN 201320182246 patent/CN203192177U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586388A (en) * | 2015-01-26 | 2015-05-06 | 山东大学齐鲁医院 | Fatigue driving detection system based on electroencephalogram recognition |
| US20220369978A1 (en) * | 2021-05-18 | 2022-11-24 | Hyundai Mobis Co., Ltd. | System and method for determining driver's fatigue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20140411 |