CN109532486A - A kind of intelligence drunk-driving prevention system and drunk-driving prevention method - Google Patents

A kind of intelligence drunk-driving prevention system and drunk-driving prevention method Download PDF

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Publication number
CN109532486A
CN109532486A CN201910020288.1A CN201910020288A CN109532486A CN 109532486 A CN109532486 A CN 109532486A CN 201910020288 A CN201910020288 A CN 201910020288A CN 109532486 A CN109532486 A CN 109532486A
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module
control module
driver
drunk
alcohol
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李烜赫
吴坚
周航
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Jilin University
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Jilin University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/02Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
    • B60K28/06Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
    • B60K28/063Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver preventing starting of vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/02Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
    • B60K28/06Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
    • B60K28/066Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver actuating a signalling device
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/029Location-based management or tracking services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12Messaging; Mailboxes; Announcements
    • H04W4/14Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/38Services specially adapted for particular environments, situations or purposes for collecting sensor information

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

The invention belongs to automobile technical field, specifically a kind of intelligent drunk-driving prevention system and drunk-driving prevention method.The system includes control module, power supply module, power management module, driver's cabin detection module, alarm module, relay module, GSM and GPS module, liquid crystal display and alcohol detection module;Power supply module is connected with power management module;Power management module is connected with control module;Driver's cabin detection module is connected with control module;Alarm module is connected with control module;GSM and GPS module are connected with control module;Liquid crystal display is connected with control module;Alcohol detection module and control module pass through WiFi communication;Relay module is connected with gasoline solenoid valve, passes through WiFi communication with control module.Whether active detecting driver has drunk the present invention in the car, can control gasoline solenoid valve, prevents driver from driving when intoxicated.Meanwhile system can send short message and vehicle GPS information to household or the police, fundamentally solve driver and drive when intoxicated the generation of behavior.

Description

A kind of intelligence drunk-driving prevention system and drunk-driving prevention method
Technical field
The invention belongs to automobile technical field, specifically a kind of intelligent drunk-driving prevention system and drunk-driving prevention method.
Background technique
The automobile of importance raising increasingly with to(for) human lives, automobile become in people's Working Life can not or Scarce convenient, the quick vehicles of one kind.Although automobile brings convenience to the mankind, many uneasinesses are also brought Total factor, especially driver this problem of driving when intoxicated are increasingly severe." the road safety whole world status issued according to WHO Report " (GLOBAL STATUS REPORT ON ROAD SAFETY) display leads to the whole world every year extremely due to traffic accident Rare 1,270,000 people is dead.Wherein, traffic accident Zhan is total caused by driving when intoxicated 50%~60%.Only 34 country's (generations 2,100,000,000 population of table) have the law of driving when intoxicated for meeting best practice.It is counted according to the Ministry of Public Security, festivals or holidays, important competitive sports are living During dynamic and summer is to drive when intoxicated illegal activities with respect to the high-incidence season.The quantity driven when intoxicated is so huge, caused by traffic Security risk can not despise, and driving when intoxicated is a urgent problem to be solved.
Existing drunk-driving prevention system has some shortcomings.Chinese patent application publication No. CN108297689A, application are public Cloth day is the 2018.07.20 entitled a kind of safety detection method and system of vehicle drunk-driving prevention, the detection method of the system are as follows: Obtain the gas information that user is blown into acquisition equipment;Judge whether gas information is more than preset threshold;If so, disconnecting Fuel oil pumping source;If it is not, being then closed fuel oil pumping source.Wherein, which installs gas production mouth additional, and driver gets on the bus must be to gas production Mouth, which is blown, could start automobile, this makes device volume become larger, and operation can be made to become more complicated.
Chinese patent application publication No. CN107891747A, data of publication of application are a kind of entitled intelligence of 2018.04.10 Energy drunk-driving prevention prior-warning device and method, judge whether main driving position has driver using pressure sensor.However it only uses Pressure sensor has certain error, if it is considered that placed some weights on seat weight itself or seat, can lead Cause erroneous judgement.
China Patent Publication No. CN106926696A, publication date are a kind of entitled drunk-driving prevention system use of 2017.07.07 Infrared sensor detects driver.But human body infrared inductive pick-up is easy to be interfered by environmental factor.Such as interior hair The heat sources such as motivation, exhaust pipe, the light sources such as instrument board, driver's cabin ceiling light can all make sensor generate error.When the temperature of environment connects When person of modern times's temperature, detectability and sensitivity can be significantly reduced, and sometimes result in short duration failure.Interior to summer is closed For environment, high temperature is inevitable, and vehicle interior temperature can easily exceed body temperature, and human body is not only not heat source, for ring Border has had changed into cold source in fact, and human body infrared inductive pick-up can not almost detect.And car is also inevitably by sun The influence of light direct beam, this also will cause extremely serious interference to human body infrared inductive pick-up, causes to judge by accident.
Summary of the invention
Simple, safe, intelligent drunk-driving prevention system and drunk-driving prevention method that the present invention provides a kind of structures, solves driving The problem of member drives when intoxicated.
Technical solution of the present invention is described with reference to the drawings as follows:
A kind of intelligence drunk-driving prevention system, the system include control module, power supply module, power management module, driver's cabin inspection Survey module, alarm module, relay module, GSM and GPS module, liquid crystal display and alcohol detection module;The power supply Module is connected with power management module, and lasting voltage input is provided to control module;The power management module and control The end VCC and the end GND of module are connected directly, and the voltage of power supply module is controlled in 5V, stable input is provided for control module Voltage;The driver's cabin detection module is connected with control module, sends driver's cabin information to control module;The report Alert module is connected with control module, and control module output order makes its alarm to alarm module;The GSM and GPS module with Control module is connected, and detects automobile GPS information by control module output order and sends short message;The liquid crystal display It is connected with control module, receives the instruction of control module;The alcohol sensor detection module shares 5, itself includes WiFi module is communicated by WiFi and control module;The relay module is connected with the connecting terminal of gasoline solenoid valve, With control module by WiFi communication, control module transmits commands to relay, and controls the on-off of relay.
The control module is located at bridge instrumentation platform center, is by model STC12C5A60S2 in a shell Single-chip microcontroller and crystal oscillating circuit, reset circuit form minimum system;The crystal oscillating circuit and single-chip microcontroller the 18th, 19,20 Number pin is connected, the clock signal needed for giving single-chip microcontroller to provide;The reset circuit is connected with No. 9 pin of single-chip microcontroller.
The power supply module is made of solar panel, USB charging module and rechargeable battery;The solar-electricity Pond plate is connected directly with rechargeable battery;The USB charging module is connected directly with rechargeable battery, simultaneously with solar panel Connection.
The power management module is LM7805 chip.
The driver's cabin detection module is made of acceleration transducer, pressure sensor, microwave radar sensor;Wherein The acceleration transducer is connected with control module, integrated on a circuit board with control module;The pressure sensing Device is located inside pilot set, passes through WiFi communication with control module;The microwave radar sensor model number is RCWL- The VCC of 9196, Vin pin link control modules, OUT foot are connected with the base stage of a triode, integrate with control module one On a circuit board.
The alarm module is made of alarm lamp and voice alarm module;The alarm lamp and single-chip microcontroller P13 pin is connected, and integrates on one piece of circuit board with control module;The voice alarm module model ISD1820, It is connected with single-chip microcontroller P13 pin, is integrated on one piece of circuit board with control module.
The GSM and GPS module uses SIM808 module;The GSM and No. 1 pin of GPS module connect power supply line, and 4 Number pin ground line, No. 2 ends RxD and TxD for connecing single-chip microcontroller respectively with No. 3 pins.
The alcohol detection module is the alcohol sensor with wifi;The alcohol sensor shares 5,5 Alcohol sensor is respectively arranged in steering wheel, copilot instrument board, chief aviation pilot's backrest, passenger seat chair back, automobile Ceiling posterior central, and pass through WiFi communication with control module.
The relay module is the relay with WiFi, the connecting terminal phase of relay module and gasoline solenoid valve Even, with control module by WiFi communication, control module transmits commands to relay, and controls the on-off of relay.
A kind of drunk-driving prevention method of intelligence drunk-driving prevention system, method includes the following steps:
Step 1: whether the acceleration transducer detection vehicle in driver's cabin detection module is in on-position, if being in Then system opens battery saving mode to motion state, into dormant state;
Step 2: the acceleration transducer in driver's cabin detection module detects that automobile is in on-position, then triggering is driven Sail room detection module;Whether it is more than the threshold value set that the pressure sensor detection seat in driver's cabin detection module is improved quality, if Then start the microwave radar sensor in driver's cabin detection module more than threshold value, whether detection driver's cabin has driver;
Step 3: driver's cabin detection module detects driver, the alcohol sensor in system trigger alcohol detection module; 5 alcohol sensors detect interior alcohol concentration simultaneously, are communicated by WiFi module and main control chip;It detects at main driving Alcohol concentration is lower than threshold value, threshold value 20mg/100mL, and intelligent drunk-driving prevention system allows driver actuation;
Step 4: if detecting, alcohol concentration is more than threshold value at main driving, and threshold value 20mg/100mL is then judged to driving Member has drunk, at this time the alarm lamp flashing in alarm module;Voice alarm module in alarm module is reminded: " please don't wine It drives afterwards ";Liquid crystal display shows driver's alcohol concentration at this time, and display " please don't drive when intoxicated " printed words;
Step 5: relay disconnects automobile oil-way, prevent automobile from starting;
Step 6: GSM and GPS module send short message to household or the police, short message content includes the alcohol of driver at this time The GPS information of content and at this time vehicle.
The invention has the benefit that
Whether acceleration transducer detection vehicle is in on-position first, and system opens power saving if being kept in motion Mode, into dormant state, power consumption at this time is lower.If being in on-position, triggers pressure sensor and microwave radar passes Whether sensor double check driver's cabin has driver.Alcohol sensor is triggered if detecting driver, 5 alcohol sensors are same When detect interior alcohol concentration, pass through WiFi module and main control chip communicate.After driver is by alcohol screen test qualification, intelligence Energy drunk-driving prevention system side can permit driver actuation.If detecting alcohol concentration highest at main driving, it is judged to driving The person of sailing has drunk.Alarm lamp flashes at this time;Voice cue module is reminded: " please don't drive when intoxicated ";Liquid crystal display is shown Driver's alcohol concentration at this time, and display " please don't drive when intoxicated " printed words;Relay module disconnects automobile oil-way, makes vapour Vehicle cannot start;To household or police's transmission short message, short message content includes the alcohol content of driver at this time for GSM and GPS module And the GPS information of vehicle at this time.This system also solves a kind of situation, if driver's drinking too much, it is not known that at this time oneself Position, be easy to appear accident in closed environment in the car, GSM and GPS module can give related personnel to send vehicle position at this time Confidence breath, can make related personnel quickly find driver, driver is avoided unexpected situation occur.This system can really from Technically it is possible to prevente effectively from the case where driver drives when intoxicated.The driving that this system is detected according to alcohol sensor Member's whether exceeded on-off to control gasoline solenoid valve of alcohol content, disconnects the oil circuit of automobile, so that driver if exceeded Vehicle can not be started, the generation for the phenomenon that fundamentally prevented to drive when intoxicated.Intelligent drunk-driving prevention system has energy-saving effect good, The advantages that cost performance is high, high system safety, and intelligence degree is high, stable and reliable in work.Intelligent drunk-driving prevention system can be in vehicle Whether interior active detecting driver has drunk, and can control gasoline solenoid valve, prevents driver from driving when intoxicated.Meanwhile system can To send short message and vehicle GPS information to household or the police, drive when intoxicated behavior to fundamentally solve driver Occur.This system can be monitored in real time, and eliminate the idea of leaving things to chance that driver drives when intoxicated, and reduce the work that traffic police investigates and prosecutes drunk driving Make difficulty, reduces the investment of society human material resources in traffic maintenance work.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the invention;
Fig. 2 is work flow diagram of the invention.
Specific embodiment
Refering to fig. 1, a kind of intelligent drunk-driving prevention system, the system include control module, power supply module, power management module, Driver's cabin detection module, alarm module, relay module, GSM and GPS module, liquid crystal display and alcohol detection module;Institute The power supply module stated is connected with power management module, and lasting voltage input is provided to control module;The power management mould The end VCC and the end GND of block and control module are connected directly, and the voltage of power supply module is controlled in 5V or so, is mentioned for control module For stable input voltage;The driver's cabin detection module is connected with control module, sends driver's cabin information to control mould Block;The alarm module is connected with control module, and control module output order makes its alarm to alarm module;The GSM And GPS module is connected with control module, detects automobile GPS information by control module output order and sends short message;Described Liquid crystal display is connected with control module, receives the instruction of control module;The alcohol sensor detection module shares 5, Itself include WiFi module, is communicated by WiFi and control module;The terminals of the relay module and gasoline solenoid valve Son is connected, and with control module by WiFi communication, control module transmits commands to relay, and controls the logical of relay It is disconnected.STC12C5A60S2 single-chip microcontroller work normally when maximum power dissipation be 70mW, and it is standby when power consumption be only 0.5mW, power consumption is very It is low, so that this system has preferable energy-saving effect.
The control module is located at bridge instrumentation platform center, is by model STC12C5A60S2 in a shell Single-chip microcontroller and crystal oscillating circuit, reset circuit form minimum system;The crystal oscillating circuit and single-chip microcontroller the 18th, 19,20 Number pin is connected, the clock signal needed for giving single-chip microcontroller to provide;The reset circuit is connected with No. 9 pin of single-chip microcontroller.
Power on, reset key is not pressed, and power supply makes the voltage at the both ends capacitor C1 reach 5V to capacitor charging.It gives No. 9 pin input low level of single-chip microcontroller, single-chip microcontroller work normally.When pressing reset key, the electricity in parallel with capacitor C1 Road conducting, capacitor is by conducting wire short circuit, the energy stored before release.By the time of 0.1s, the voltage that capacitor release stores, Its both end voltage is about 1.5V.Capacitor is in series with a resistor, and capacitor both end voltage is equal to 5V plus resistance both end voltage.It is electric at this time The voltage for hindering both ends is about 3.5V, No. 9 pin input high level of single-chip microcontroller.Single-chip microcontroller automatically resets, from the beginning program is held Row.
The power supply module is made of solar panel, USB charging module and rechargeable battery;The solar-electricity Pond plate is connected directly with rechargeable battery;The USB charging module is connected directly with rechargeable battery, simultaneously with solar panel Connection.The end VCC, GND of the power supply module and power management module is connected directly, and gives control mould by power management module Block power supply.In view of automobile it is possible that being parked in dark place for a long time, system power shortage in order to prevent, while devising USB Charge port can use charger baby, interior cigar lighter charging, very convenient.
The power management module is LM7805 chip;The power module and power supply module and it is connected, with power supply The end VCC, GND of management module is connected directly, and by the voltage stabilization of power supply module in 5V or so, provides stabilization to control module Voltage input.LM7805 chip is a kind of three-terminal voltage-stabilizing integrated chip.Chip can provide while exporting 5V voltage Stable 1A exports electric current.Its working performance is fine, cheap, and peripheral circuit is relatively simple convenient for design, meets this system Design requirement, so this preferred chip.
The driver's cabin detection module is made of acceleration transducer, pressure sensor, microwave radar sensor;Wherein The acceleration transducer is connected with control module, integrated on a circuit board with control module;The pressure sensing Device is located inside pilot set, with control module by WiFi communication, sends driver's cabin information to control module;It is described Microwave radar sensor model number be RCWL-9196, the VCC of Vin pin link control module, OUT foot and triode Base stage is connected, integrated on a circuit board with control module.After single-chip microcontroller obtains the signal of sensor, it can calculate and drive The alcohol concentration of the person's of sailing exhaled gas can carry out real-time monitoring to driver.If the alcohol concentration monitored is greater than setting Threshold value when, the I/O mouth of single-chip microcontroller exports low level.As the intracorporal alcohol content 20mg/100mL≤vol < 80mg/ of driver When 100mL, it can be determined as drinking drive.Referring to national standard, the alcohol alarm concentration threshold of this system is set to 20mg/100mL。
Acceleration transducer is responsible for detecting whether vehicle is braked.Pressure sensor uses semibridge system weighing sensor.This Sensor is widely used in the weighing device such as human body balance, and sensitivity, accuracy are higher, composition error 0.1%, accord with completely Close the needs of this system.By calculating, the weight of driver's seat cushion can be subtracted, can be detected and whether take On driver's seat.In view of many reasons such as some articles may be placed on driver's cabin seat, so that pressure sensor generates Erroneous judgement, so this system selects RCWL-0516 microwave radar sensor, whether double check driver's cabin has driver, so that inspection It is higher to survey accuracy.This system selection this microwave radar sensor sensing distance can achieve 7 meters, have high sensitivity, The features such as accuracy is high, induction angle is big.Compared with traditional infrared sensor, will not by environment temperature, illumination condition etc. because Element interference, so that the accuracy of detection greatly improves.
The alarm module is made of alarm lamp and voice alarm module;The alarm lamp and single-chip microcontroller P13 pin is connected, and integrates on one piece of circuit board with control module;The voice alarm module model ISD1820, It is connected with single-chip microcontroller P13 pin, is integrated on one piece of circuit board with control module.When detecting driver's drunk driving, using prolonging When function, single-chip microcontroller pin exports high and low level, so that alarm lamp flashes.Voice cue module is reminded: " please don't be after drinking It drives ".
The GSM and GPS module uses SIM808 module;The GSM and No. 1 pin of GPS module connect power supply line (VCC), No. 4 pin ground lines (GND), No. 2 ends RxD and TxD for connecing single-chip microcontroller respectively with No. 3 pins.The module has transmitting-receiving Short message and positioning function.It is integrated with GSM:850MHz, EGSM:900MHz, DCS:1800MHz, tetra- frequency of PCS:1900MHz GSM/GPRS module.It uses power conservation techniques to design, therefore (GPS engine is disconnected down to 1mA for the current drain under sleep pattern Electricity).SIM808 module integrates GSM with GPS, the GPS module and GSM module used compared to other systems, it Volume it is smaller, cost performance is higher.Comprehensively consider, this module complies fully with the needs of this system.
The alcohol detection module is the alcohol sensor with wifi;The alcohol sensor shares 5,5 Alcohol sensor is respectively arranged in steering wheel, copilot instrument board, chief aviation pilot's backrest, passenger seat chair back, automobile Ceiling posterior central, and pass through WiFi communication with control module.
The liquid crystal display shows driver's alcohol concentration at this time, and display " please don't drive when intoxicated " printed words.
The relay module is connected with the connecting terminal of gasoline solenoid valve, passes through WiFi communication, control with control module Molding block transmits commands to relay, and controls the on-off of relay.
Referring to Fig.2, a kind of drunk-driving prevention method of intelligence drunk-driving prevention system, method includes the following steps:
Step 1: whether the acceleration transducer detection vehicle in driver's cabin detection module is in on-position, if being in Then system opens battery saving mode to motion state, into dormant state;
Step 2: the acceleration transducer in driver's cabin detection module detects that automobile is in on-position, then triggering is driven Sail room detection module;Whether it is more than the threshold value set that the pressure sensor detection seat in driver's cabin detection module is improved quality, if Then start the microwave radar sensor in driver's cabin detection module more than threshold value, whether detection driver's cabin has driver;
Step 3: driver's cabin detection module detects driver, the alcohol sensor in system trigger alcohol detection module; 5 alcohol sensors detect interior alcohol concentration simultaneously, are communicated by WiFi module and main control chip;It detects at main driving Alcohol concentration is lower than threshold value (20mg/100mL), and intelligent drunk-driving prevention system allows driver actuation;
Step 4: if detecting, alcohol concentration is more than threshold value (20mg/100mL) at main driving, is determined as driver It drinks, at this time the alarm lamp flashing in alarm module;Voice alarm module in alarm module is reminded: " please don't be driven after drinking It sails ";Liquid crystal display shows driver's alcohol concentration at this time, and display " please don't drive when intoxicated " printed words;
Step 5: relay disconnects automobile oil-way, prevent automobile from starting;
Step 6: GSM and GPS module send short message to household or the police, short message content includes the alcohol of driver at this time The GPS information of content and at this time vehicle.

Claims (10)

1. a kind of intelligence drunk-driving prevention system, which is characterized in that the system include control module, power supply module, power management module, Driver's cabin detection module, alarm module, relay module, GSM and GPS module, liquid crystal display and alcohol detection module;It is described Power supply module be connected with power management module, lasting voltage input is provided to control module;The power management module It is connected directly with the end VCC of control module and the end GND, the voltage of power supply module is controlled in 5V, provides stabilization for control module Input voltage;The driver's cabin detection module is connected with control module, sends driver's cabin information to control module;It is described Alarm module be connected with control module, control module output order makes its alarm to alarm module;GSM the and GPS mould Block is connected with control module, detects automobile GPS information by control module output order and sends short message;The liquid crystal display Screen is connected with control module, receives the instruction of control module;The alcohol sensor detection module shares 5, itself includes WiFi module is communicated by WiFi and control module;The relay module is connected with the connecting terminal of gasoline solenoid valve, with For control module by WiFi communication, control module transmits commands to relay, and controls the on-off of relay.
2. a kind of intelligent drunk-driving prevention system according to claim 1, which is characterized in that the control module, which is located at, to be driven Room instrument desk center, in a shell, is made of single-chip microcontroller and crystal oscillating circuit, the reset circuit of model STC12C5A60S2 Minimum system;The crystal oscillating circuit is connected with the 18th, 19, No. 20 pin of single-chip microcontroller, when to needed for single-chip microcontroller offer Clock signal;The reset circuit is connected with No. 9 pin of single-chip microcontroller.
3. a kind of intelligent drunk-driving prevention system according to claim 1, which is characterized in that the power supply module is by solar energy Solar panel, USB charging module and rechargeable battery composition;The solar panel is connected directly with rechargeable battery;Described USB charging module is connected directly with rechargeable battery, in parallel with solar panel.
4. a kind of intelligent drunk-driving prevention system according to claim 1, which is characterized in that the power management module is LM7805 chip.
5. a kind of intelligent drunk-driving prevention system according to claim 1, which is characterized in that the driver's cabin detection module by Acceleration transducer, pressure sensor, microwave radar sensor composition;The wherein acceleration transducer and control module phase Even, integrated on a circuit board with control module;The pressure sensor is located inside pilot set, with control module Pass through WiFi communication;The microwave radar sensor model number is RCWL-9196, the VCC, OUT of Vin pin link control module Foot is connected with the base stage of a triode, integrated on a circuit board with control module.
6. a kind of intelligent drunk-driving prevention system according to claim 2, which is characterized in that the alarm module is referred to by alarming Show lamp and voice alarm module composition;The alarm lamp is connected with single-chip microcontroller P13 pin, integrates with control module On one piece of circuit board;The voice alarm module model ISD1820, is connected, with control module with single-chip microcontroller P13 pin It is integrated on one piece of circuit board.
7. a kind of intelligent drunk-driving prevention system according to claim 2, which is characterized in that the GSM and GPS module use SIM808 module;The GSM and No. 1 pin of GPS module connect power supply line, and No. 4 pin ground lines, No. 2 connect respectively with No. 3 pins The end RxD and TxD of single-chip microcontroller.
8. a kind of intelligent drunk-driving prevention system according to claim 1, which is characterized in that the alcohol detection module is band There is the alcohol sensor of WiFi;The alcohol sensor shares 5, and 5 alcohol sensors are respectively arranged in steering wheel, the passenger side Instrument board, chief aviation pilot's backrest, passenger seat chair back, roof of the vehicle posterior central are sailed, and logical with control module Cross WiFi communication.
9. a kind of intelligent drunk-driving prevention system according to claim 1, which is characterized in that the relay module be with The relay of WiFi, relay module are connected with the connecting terminal of gasoline solenoid valve, pass through WiFi communication, control with control module Module transmits commands to relay, and controls the on-off of relay.
10. a kind of drunk-driving prevention method of intelligent drunk-driving prevention system according to claim 1, which is characterized in that this method packet Include following steps:
Step 1: whether the acceleration transducer detection vehicle in driver's cabin detection module is in on-position, if in movement Then system opens battery saving mode to state, into dormant state;
Step 2: the acceleration transducer in driver's cabin detection module detects that automobile is in on-position, then driver's cabin is triggered Detection module;Whether it is more than the threshold value set that the pressure sensor detection seat in driver's cabin detection module is improved quality, if being more than Threshold value then starts the microwave radar sensor in driver's cabin detection module, and whether detection driver's cabin has driver;
Step 3: driver's cabin detection module detects driver, the alcohol sensor in system trigger alcohol detection module;5 Alcohol sensor detects interior alcohol concentration simultaneously, is communicated by WiFi module and main control chip;Detect alcohol at main driving Concentration is lower than threshold value, threshold value 20mg/100mL, and intelligent drunk-driving prevention system allows driver actuation;
Step 4: if detecting, alcohol concentration is more than threshold value at main driving, and threshold value 20mg/100mL has then been determined as driver It drinks, at this time the alarm lamp flashing in alarm module;Voice alarm module in alarm module is reminded: " please don't be driven after drinking It sails ";Liquid crystal display shows driver's alcohol concentration at this time, and display " please don't drive when intoxicated " printed words;
Step 5: relay disconnects automobile oil-way, prevent automobile from starting;
Step 6: GSM and GPS module send short message to household or the police, short message content includes the alcohol content of driver at this time And the GPS information of vehicle at this time.
CN201910020288.1A 2019-01-09 2019-01-09 A kind of intelligence drunk-driving prevention system and drunk-driving prevention method Pending CN109532486A (en)

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