CN104057907A - Safety protection detection and pre-warning circuit - Google Patents
Safety protection detection and pre-warning circuit Download PDFInfo
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- CN104057907A CN104057907A CN201410181548.0A CN201410181548A CN104057907A CN 104057907 A CN104057907 A CN 104057907A CN 201410181548 A CN201410181548 A CN 201410181548A CN 104057907 A CN104057907 A CN 104057907A
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- 238000001514 detection method Methods 0.000 title claims abstract description 43
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 37
- 230000033228 biological regulation Effects 0.000 claims description 16
- 230000001133 acceleration Effects 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 230000004886 head movement Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 206010039203 Road traffic accident Diseases 0.000 abstract description 7
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 5
- 210000003128 head Anatomy 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 206010041349 Somnolence Diseases 0.000 description 4
- 210000001061 forehead Anatomy 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000007405 data analysis Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 206010033892 Paraplegia Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention relates to a safety protection detection and pre-warning circuit, and belongs to the field of traffic safety facilities. The safety protection detection and pre-warning circuit comprises an MCU (Micro Control Unit), a liquid crystal display screen, a dial switch, Bluetooth, a gyroscope and accelerometer, a 5V stabilized voltage power supply module, an alcohol sensor, a 7.2V power supply battery, a temperature sensor, a motor rotating speed detection module, a motor drive module, a voice module and an electromagnetic magnet, wherein the 5V stabilized voltage power supply module provides a stable 5V DC power supply; the 7.2V power supply battery provides power for the 5V stabilized power supply module and the motor drive module; the liquid crystal display screen, the dial switch, the Bluetooth and the temperature sensor are connected with an I/O of the MCU; signals acquired by the gyroscope and accelerometer, the alcohol sensor, the temperature sensor and the motor rotating speed detection module are input to the MCU and processed. The safety protection detection and pre-warning circuit can prevent traffic accidents, and protects a driver when a traffic accident occurs.
Description
Technical field
The present invention relates to a kind of safety precaution detection and early warning circuit, belong to traffic safety facilities field.
Background technology
Traffic safety is the factor that first vehicle drive is considered.Although safety strap and safety air bag are all housed on automobile now, but be all passive safety feature, but in the time getting into an accident, head is subject to the force of inertia effect still can be injured, while collision at a high speed, even if safety air bag is opened, the head of chaufeur still can be heavy strike on safety air bag, then rebound, can cause cervical vertebra impaired in this process, medically be called swishing a whip property of cervical vertebra damage, the serious high paraplegia that causes.Therefore the factor that affects driver and crew's rehabilitation maximum in the future in traffic accident is the damage of swishing a whip property of cervical vertebra.
How to solve the defect that safe automobile air bag exists, in the time that traffic accident occurs, can more effective protection chaufeur; Meanwhile, the initiatively driving behavior of Real-Time Monitoring chaufeur, and point out chaufeur to have which hazardous act, the device of the generation of prevention and minimizing accident is a very important problem.The circuit of this safety device should have following characteristics: 1. can initiatively find that in time driving behavior is abnormal, and point out in time; 2. can protect chaufeur and other personnel's head safety of riding, swishing a whip property of driver and crew's cervical vertebra damage while preventing traffic accident; 3. cost is low, good reliability.
Summary of the invention
The invention provides a kind of safety precaution detection and early warning circuit, can, in the generation of prevention traffic accident, and impose protection to chaufeur in the time that traffic accident occurs.
Safety precaution detection of the present invention and early warning circuit comprise MCU microcontroller 1, LCDs 2, toggle switch 3, bluetooth 4, gyroscope & accelerometer 5,5V power module of voltage regulation 6, alcohol sensor 7,7.2V supplying cell 8, temperature sensor 9, motor speed detection module 10, motor drive module 11, voice module 13 and electromagnet 14 form; 5V power module of voltage regulation provides stable direct current 5V power supply to respectively MCU microcontroller 1, LCDs 2, toggle switch 3, bluetooth 4, gyroscope and accelerometer 5, alcohol sensor 7, temperature sensor 9 and motor drive module 11; 7.2V supplying cell 8 is powered for 5V power module of voltage regulation 6 and motor drive module 11; LCDs 2, toggle switch 3, bluetooth 4 and temperature sensor 9 are connected with the I/O mouth of MCU; Gyroscope & accelerometer 5, alcohol sensor 7, temperature sensor 9, motor speed detection module 10 are processed gathered signal input MCU microcontroller 1.
Described MCU microcontroller 1 is 16 microcontroller chip MC9S12XS128MAL of Freescale company, the signal that MCU microcontroller 1 obtains by A/D mouth collection gyroscope & accelerometer 5, alcohol sensor 7, the signal obtaining by I/O mouth collecting temperature sensor 9 and toggle switch 3, gather by motor speed detection module 10 signal that photoelectric encoder obtains, and by I/O mouth control LCDs 2, control DC machine 12 by motor drive module 11 by PWM module.
Described LCDs 2 is LCD1602, and MCU microcontroller 1 is presented on liquid crystal display the character that will show by compiling character, and prompting chaufeur is taken care.
Described bluetooth 4 is used by a main frame and a slave pairing, adopts HC-O6, sends the needed data of debugging in computer, carry out data analysis by Bluetooth transmission by the serial port module of MCU.
Described gyroscope & accelerometer 5 is arranged on driver safety cap, and gyroscope adopts ENC-03 to gather head angle signal, and accelerometer adopts MMA7361 to collect the acceleration/accel of head movement.Another accelerometer is arranged on the seat rear of chaufeur, in the time that sudden stop is crossed collision, can produce a larger acceleration/accel.MCU is by analyzing the rule of these signals, and just can determine chaufeur is in what state (bow when driving and pick up thing, drowsiness, sudden stop and collision).
Described alcohol sensor 7 adopts MQ-3 to detect alcohol content, reminds by LCDs 2 and voice module 13.Be arranged in operator's compartment, chaufeur is exhaled facing to alcohol sensor, and alcohol sensor can detect chaufeur and whether belong to drunk driving.
Described 7.2V supplying cell 8 adopts Rechargeable battery.
Described temperature sensor 9 adopts DS1820, is arranged on helmet brim, and when safety cap on chaufeur band, temperature sensor is attached on head forehead, and temperature raises chaufeur to bring safety cap.
Described motor speed detection module 10 adopts photoelectric encoder E6A2-CW3C to detect, DC machine 12 by and photoelectric encoder on gear engagement drive photoelectric encoder to rotate to produce pulse, MCU microcontroller 1 records this pulse just can calculate the current rotating speed of DC machine 12.
Described motor drive module 11 is used for driving DC machine 12, by the full bridge driving circuit of two half-bridge chip compositions, by the rotating speed of input pwm pulse control DC machine 12.Can allow driven by motor belt reel rotate, realize take-up, locking state.
Described voice module 13 comprises microphone, loudspeaker and ISD1760 speech chip, by typing particular statement, when chaufeur is not according to predetermined operation with run into emergency situation, by MCU microcontroller 1 control ISD1760 speech chip play before the statement of typing chip, prompting chaufeur.
When described electromagnet 14 is switched on, iron core ejects and realizes lockedly, and belt reel is stopped operating.
The invention has the beneficial effects as follows: circuit of the present invention is compared with induction anti-collision helmet belt circuit, and its principle that detects head state of kinematic motion is different with sensor, what detect with gyroscope and accelerometer is more accurate and reliable.And principle of work and the circuit of having set forth more specifically the each module of system, matching with corresponding program, whole system just can realize its function.
Brief description of the drawings
Fig. 1 is circuit structure block diagram of the present invention;
Fig. 2 is 5V voltage-stabilized power supply circuit schematic diagram of the present invention;
Fig. 3 is motor-drive circuit schematic diagram of the present invention;
Fig. 4 is that motor speed of the present invention detects schematic diagram;
Fig. 5 is alcohol detection schematic circuit diagram of the present invention;
Fig. 6 is that head temperature of the present invention detects schematic diagram;
Fig. 7 is head position of the present invention and acceleration detection schematic diagram;
Fig. 8 is voice module schematic diagram of the present invention.
In figure: 1-MCU microcontroller, 2-LCDs, 3-toggle switch, 4-bluetooth, 5-gyroscope & accelerometer, 6-5V power module of voltage regulation, 7-alcohol sensor, 8-7.2V supplying cell, 9-temperature sensor, 10-motor speed detection module, 11-motor drive module, 12-DC machine, 13-voice module, 14-electromagnet.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment one: as shown in Fig. 1 to 8, safety precaution detection of the present invention and early warning circuit comprise MCU microcontroller 1, LCDs 2, toggle switch 3, bluetooth 4, gyroscope & accelerometer 5,5V power module of voltage regulation 6, alcohol sensor 7,7.2V supplying cell 8, temperature sensor 9, motor speed detection module 10, motor drive module 11, voice module 13 and electromagnet 14 form; 5V power module of voltage regulation provides stable direct current 5V power supply to respectively MCU microcontroller 1, LCDs 2, toggle switch 3, bluetooth 4, gyroscope and accelerometer 5, alcohol sensor 7, temperature sensor 9 and motor drive module 11; 7.2V supplying cell 8 is powered for 5V power module of voltage regulation 6 and motor drive module 11; LCDs 2, toggle switch 3, bluetooth 4 and temperature sensor 9 are connected with the I/O mouth of MCU; Gyroscope & accelerometer 5, alcohol sensor 7, temperature sensor 9, motor speed detection module 10 are processed gathered signal input MCU microcontroller 1.MCU microcontroller 1 is 16 microcontroller chip MC9S12XS128MAL of Freescale company, the signal that MCU microcontroller 1 obtains by A/D mouth collection gyroscope & accelerometer 5, alcohol sensor 7, the signal obtaining by I/O mouth collecting temperature sensor 9 and toggle switch 3, gather by motor speed detection module 10 signal that photoelectric encoder obtains, and by I/O mouth control LCDs 2, control DC machine 12 by motor drive module 11 by PWM module.LCDs 2 is LCD1602, and MCU microcontroller 1 is presented on liquid crystal display the character that will show by compiling character, and prompting chaufeur is taken care.Bluetooth 4 is used by a main frame and a slave pairing, adopts HC-O6, sends the needed data of debugging in computer, carry out data analysis by Bluetooth transmission by the serial port module of MCU.Gyroscope & accelerometer 5 is arranged on driver safety cap, and gyroscope adopts ENC-03 to gather head angle signal, and accelerometer adopts MMA7361 to collect the acceleration/accel of head movement.Another accelerometer is arranged on the seat rear of chaufeur, in the time that sudden stop is crossed collision, can produce a larger acceleration/accel.MCU is by analyzing the rule of these signals, and just can determine chaufeur is in what state (bow when driving and pick up thing, drowsiness, sudden stop and collision).Alcohol sensor 7 adopts MQ-3 to detect alcohol content, reminds by LCDs 2 and voice module 13.Be arranged in operator's compartment, chaufeur is exhaled facing to alcohol sensor, and alcohol sensor can detect chaufeur and whether belong to drunk driving.7.2V supplying cell 8 adopts Rechargeable battery.Temperature sensor 9 adopts DS1820, is arranged on helmet brim, and when safety cap on chaufeur band, temperature sensor is attached on head forehead, and temperature raises chaufeur to bring safety cap.Motor speed detection module 10 adopts photoelectric encoder E6A2-CW3C to detect, DC machine 12 by and photoelectric encoder on gear engagement drive photoelectric encoder to rotate to produce pulse, MCU microcontroller 1 records this pulse just can calculate the current rotating speed of DC machine 12.Motor drive module 11 is used for driving DC machine 12, by the full bridge driving circuit of two half-bridge chip compositions, by the rotating speed of input pwm pulse control DC machine 12.Can allow driven by motor belt reel rotate, realize take-up, locking state.Voice module 13 comprises microphone, loudspeaker and ISD1760 speech chip, by typing particular statement, when chaufeur is not according to predetermined operation with run into emergency situation, by MCU microcontroller 1 control ISD1760 speech chip play before the statement of typing chip, prompting chaufeur.Electromagnet 14 iron core ejection in the time of energising realizes the locked belt reel that makes and stops operating, and head no longer turns forward, and avoids encountering safety air bag and rebounds again.
Embodiment two: as shown in Fig. 1 to 8, safety precaution detection of the present invention and early warning circuit comprise MCU microcontroller 1, LCDs 2, toggle switch 3, bluetooth 4, gyroscope & accelerometer 5,5V power module of voltage regulation 6, alcohol sensor 7,7.2V supplying cell 8, temperature sensor 9, motor speed detection module 10, motor drive module 11, voice module 13 and electromagnet 14 form; 5V power module of voltage regulation provides stable direct current 5V power supply to respectively MCU microcontroller 1, LCDs 2, toggle switch 3, bluetooth 4, gyroscope and accelerometer 5, alcohol sensor 7, temperature sensor 9 and motor drive module 11; 7.2V supplying cell 8 is powered for 5V power module of voltage regulation 6 and motor drive module 11; LCDs 2, toggle switch 3, bluetooth 4 and temperature sensor 9 are connected with the I/O mouth of MCU; Gyroscope & accelerometer 5, alcohol sensor 7, temperature sensor 9, motor speed detection module 10 are processed gathered signal input MCU microcontroller 1.MCU microcontroller 1 is 16 microcontroller chip MC9S12XS128MAL, the signal that MCU microcontroller 1 obtains by A/D mouth collection gyroscope & accelerometer 5, alcohol sensor 7, the signal obtaining by I/O mouth collecting temperature sensor 9 and toggle switch 3, gather by motor speed detection module 10 signal that photoelectric encoder obtains, and by I/O mouth control LCDs 2, control DC machine 12 by motor drive module 11 by PWM module.Gyroscope & accelerometer 5 is arranged on driver safety cap, and gyroscope adopts ENC-03 to gather head angle signal, and accelerometer adopts MMA7361 to collect the acceleration/accel of head movement.Another accelerometer is arranged on the seat rear of chaufeur, in the time that sudden stop is crossed collision, can produce a larger acceleration/accel.MCU is by analyzing the rule of these signals, and just can determine chaufeur is in what state (bow when driving and pick up thing, drowsiness, sudden stop and collision).Temperature sensor 9 adopts DS1820, is arranged on helmet brim, and when safety cap on chaufeur band, temperature sensor is attached on head forehead, and temperature raises chaufeur to bring safety cap.Motor speed detection module 10 adopts photoelectric encoder E6A2-CW3C to detect, DC machine 12 by and photoelectric encoder on gear engagement drive photoelectric encoder to rotate to produce pulse, MCU microcontroller 1 records this pulse just can calculate the current rotating speed of DC machine 12.Motor drive module 11 is used for driving DC machine 12, by the full bridge driving circuit of two half-bridge chip compositions, by the rotating speed of input pwm pulse control DC machine 12.Can allow driven by motor belt reel rotate, realize take-up, locking state.Voice module 13 comprises microphone, loudspeaker and ISD1760 speech chip, by typing particular statement, when chaufeur is not according to predetermined operation with run into emergency situation, by MCU microcontroller 1 control ISD1760 speech chip play before the statement of typing chip, prompting chaufeur.Electromagnet 14 iron core ejection in the time of energising realizes locked.
Embodiment three: as shown in Fig. 1 to 8, safety precaution detection of the present invention and early warning circuit comprise MCU microcontroller 1, LCDs 2, toggle switch 3, bluetooth 4, gyroscope & accelerometer 5,5V power module of voltage regulation 6, alcohol sensor 7,7.2V supplying cell 8, temperature sensor 9, motor speed detection module 10, motor drive module 11, voice module 13 and electromagnet 14 form; 5V power module of voltage regulation provides stable direct current 5V power supply to respectively MCU microcontroller 1, LCDs 2, toggle switch 3, bluetooth 4, gyroscope and accelerometer 5, alcohol sensor 7, temperature sensor 9 and motor drive module 11; 7.2V supplying cell 8 is powered for 5V power module of voltage regulation 6 and motor drive module 11; LCDs 2, toggle switch 3, bluetooth 4 and temperature sensor 9 are connected with the I/O mouth of MCU; Gyroscope & accelerometer 5, alcohol sensor 7, temperature sensor 9, motor speed detection module 10 are processed gathered signal input MCU microcontroller 1.MCU microcontroller 1 is 16 microcontroller chip MC9S12XS128MAL of Freescale company, the signal that MCU microcontroller 1 obtains by A/D mouth collection gyroscope & accelerometer 5, alcohol sensor 7, the signal obtaining by I/O mouth collecting temperature sensor 9 and toggle switch 3, gather by motor speed detection module 10 signal that photoelectric encoder obtains, and by I/O mouth control LCDs 2, control DC machine 12 by motor drive module 11 by PWM module.LCDs 2 is LCD1602, and MCU microcontroller 1 is presented on liquid crystal display the character that will show by compiling character, and prompting chaufeur is taken care.Bluetooth 4 is used by a main frame and a slave pairing, adopts HC-O6, sends the needed data of debugging in computer, carry out data analysis by Bluetooth transmission by the serial port module of MCU.Gyroscope & accelerometer 5 is arranged on driver safety cap, and gyroscope adopts ENC-03 to gather head angle signal, and accelerometer adopts MMA7361 to collect the acceleration/accel of head movement.Another accelerometer is arranged on the seat rear of chaufeur, in the time that sudden stop is crossed collision, can produce a larger acceleration/accel.MCU is by analyzing the rule of these signals, and just can determine chaufeur is in what state (bow when driving and pick up thing, drowsiness, sudden stop and collision).Alcohol sensor 7 adopts MQ-3 to detect alcohol content, reminds by LCDs 2 and voice module 13.Be arranged in operator's compartment, chaufeur is exhaled facing to alcohol sensor, and alcohol sensor can detect chaufeur and whether belong to drunk driving.7.2V supplying cell 8 adopts Rechargeable battery.Temperature sensor 9 adopts DS1820, is arranged on helmet brim, and when safety cap on chaufeur band, temperature sensor is attached on head forehead, and temperature raises chaufeur to bring safety cap.Electromagnet 14 iron core ejection in the time of energising realizes locked.
Below by reference to the accompanying drawings the specific embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from aim of the present invention, make various variations.
Claims (8)
1. a safety precaution detection and early warning circuit, it is characterized in that: comprise MCU microcontroller (1), LCDs (2), toggle switch (3), bluetooth (4), gyroscope & accelerometer (5), 5V power module of voltage regulation (6), alcohol sensor (7), 7.2V supplying cell (8), temperature sensor (9), motor speed detection module (10), motor drive module (11), voice module (13) and electromagnet (14) composition; 5V power module of voltage regulation (6) provides stable direct current 5V power supply to respectively MCU microcontroller (1), LCDs (2), toggle switch (3), bluetooth (4), gyroscope and accelerometer (5), alcohol sensor (7), temperature sensor (9) and motor drive module (11); 7.2V supplying cell (8) is 5V power module of voltage regulation (6) and motor drive module (11) power supply; LCDs (2), toggle switch (3), bluetooth (4) and temperature sensor (9) are connected with the I/O mouth of MCU; Gyroscope & accelerometer (5), alcohol sensor (7), temperature sensor (9), motor speed detection module (10) are processed gathered signal input MCU microcontroller (1).
2. safety precaution detection according to claim 1 and early warning circuit, it is characterized in that: described MCU microcontroller (1) is 16 microcontroller chip MC9S12XS128MAL, MCU microcontroller (1) gathers gyroscope & accelerometer (5) by A/D mouth, the signal that alcohol sensor (7) obtains, the signal obtaining by I/O mouth collecting temperature sensor (9) and toggle switch (3), gather by motor speed detection module (10) signal that photoelectric encoder obtains, and by I/O mouth control LCDs (2), control DC machine (12) by motor drive module (11) by PWM module.
3. safety precaution detection according to claim 1 and early warning circuit, it is characterized in that: described gyroscope & accelerometer (5) is arranged on driver safety cap, gyroscope adopts ENC-03 to gather head angle signal, and accelerometer adopts MMA7361 to collect the acceleration/accel of head movement.
4. safety precaution detection according to claim 1 and early warning circuit, is characterized in that: described alcohol sensor (7) adopts MQ-3 to detect alcohol content, reminds by LCDs (2) and voice module (13).
5. safety precaution detection according to claim 1 and early warning circuit, it is characterized in that: described motor speed detection module (10) adopts photoelectric encoder E6A2-CW3C to detect, DC machine (12) by and photoelectric encoder on gear engagement drive photoelectric encoder to rotate to produce pulse, MCU microcontroller (1) records this pulse just can calculate the current rotating speed of DC machine (12).
6. safety precaution detection according to claim 1 and early warning circuit, it is characterized in that: described motor drive module (11) is used for driving DC machine (12), become full bridge driving circuit by two half-bridge chipsets, by the rotating speed of input pwm pulse control DC machine (12).
7. safety precaution detection according to claim 1 and early warning circuit, it is characterized in that: described voice module (13) comprises microphone, loudspeaker and ISD1760 speech chip, control ISD1760 speech chip by MCU microcontroller (1) and play the statement of typing chip before.
8. safety precaution detection according to claim 1 and early warning circuit, is characterized in that: described electromagnet (14) when energising iron core ejects that to realize safety strap locked.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410181548.0A CN104057907A (en) | 2014-05-04 | 2014-05-04 | Safety protection detection and pre-warning circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410181548.0A CN104057907A (en) | 2014-05-04 | 2014-05-04 | Safety protection detection and pre-warning circuit |
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| CN104057907A true CN104057907A (en) | 2014-09-24 |
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| CN201410181548.0A Pending CN104057907A (en) | 2014-05-04 | 2014-05-04 | Safety protection detection and pre-warning circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274481A (en) * | 2016-08-09 | 2017-01-04 | 西安科技大学 | Intelligent automobile drive assist system |
| CN112019179A (en) * | 2020-09-07 | 2020-12-01 | 南京宁普防雷技术有限公司 | Network signal electromagnetic pulse protection mechanism |
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| CN112019179A (en) * | 2020-09-07 | 2020-12-01 | 南京宁普防雷技术有限公司 | Network signal electromagnetic pulse protection mechanism |
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