CN111645517A - Intelligent assistant system for safe driving - Google Patents
Intelligent assistant system for safe driving Download PDFInfo
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- CN111645517A CN111645517A CN202010449152.5A CN202010449152A CN111645517A CN 111645517 A CN111645517 A CN 111645517A CN 202010449152 A CN202010449152 A CN 202010449152A CN 111645517 A CN111645517 A CN 111645517A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT 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
- B60K28/00—Safety 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
- B60K28/02—Safety 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT 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
- B60K28/00—Safety 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
- B60K28/02—Safety 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
- B60K28/06—Safety 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
- B60K28/063—Safety 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT 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
- B60K28/00—Safety 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
- B60K28/02—Safety 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
- B60K28/06—Safety 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
- B60K28/066—Safety 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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention relates to an intelligent assistant system for safe driving, which comprises a vehicle-mounted hardware end and a mobile software end, wherein hardware equipment is installed in a vehicle cab, the software end can be installed on any intelligent mobile terminal, the scheme integrates various sensors to detect various driving behaviors, can effectively avoid drunk driving and fatigue driving behaviors, and the system software end can display state information of vehicles and drivers in real time, has more perfect abnormal condition processing and early warning functions, avoids the limitation of traditional manual inspection, and saves a large amount of manpower and material resources.
Description
Technical Field
The invention relates to the technical field of intelligent assistants, in particular to a vehicle-mounted intelligent assistant system for safe driving of alcohol detection and fatigue driving monitoring.
Background
At present, traffic safety has become a worldwide social problem that cannot be ignored. By 2018, the global car inventory has broken through 10 million cars. With the increase of automobile holding capacity, traffic accidents are also increasing continuously. According to statistics, about 120 million people die from road traffic accidents every year around the world, the number of injured people is as high as 5000 million people, meanwhile, the direct economic loss caused by the road traffic accidents all year around the world is as high as $ 5180 million, and how to reduce the occurrence of the traffic accidents is imminent.
The relevant data shows that drunk driving and fatigue driving have been the main causes of traffic safety accidents. In the current society, although everyone knows that drinking does not drive and driving does not drink, a small number of people report lucky psychology, so that drunk driving behavior happens occasionally, and irreparable harm is brought to the self, the unit and other families. According to statistics, traffic accidents caused by drunk driving account for 40% of all traffic accidents every year, and direct economic loss reaches billions. In addition, fatigue driving is also one of the main causes of special and serious traffic accidents. According to the statistics of emergency broadcast in China: in 2016, 864.3 thousands of road accidents were reported in China, and 16.2% of the deaths were caused by fatigue driving. In addition, investigations have shown that about 50% of people experience fatigue driving, and it can be seen that fatigue driving behavior is somewhat prevalent.
In conclusion, how to avoid dangerous driving behaviors such as drunk driving and fatigue driving from the source is very important to ensure driving safety. At present, although the policeman system continuously strengthens the supervision of drunk driving and fatigue driving of a driver, a fresh vehicle is provided with an active alcohol and fatigue driving monitoring system, and dangerous driving behaviors such as drunk driving and fatigue driving are difficult to stop from the source. The design goal of the system is to realize real-time monitoring of the driving state of the driver and ensure safe driving. When the system monitors and finds that the driver drinks, the driver can be prevented from driving the vehicle, and meanwhile, the family members and friends of the driver are timely informed of the current vehicle position and the alcohol detection concentration. When the driver is in a fatigue driving state, the system can quickly give an early warning, effectively reduce the fatigue driving probability and ensure the safe driving of the driver.
Disclosure of Invention
In order to solve the technical problems, the invention provides a set of intelligent assistant system for automobile safe driving, which can realize real-time monitoring of drunk driving and fatigue driving. The product has the outstanding characteristics of simple structure, low price, strong universality and the like, can realize the functions of drunk driving detection alarm, fatigue driving detection alarm, driving visual field deviation alarm, one-key designated driving, GPS real-time positioning and the like, and is suitable for additionally mounting unit buses and individual private vehicles.
The technical scheme adopted by the invention is as follows:
the safe driving intelligent assistant system comprises a vehicle-mounted hardware end and a mobile software end, wherein hardware equipment is installed in an automobile cab, and the software end can be installed on any intelligent mobile terminal;
the vehicle-mounted hardware end mainly comprises:
the STM32 embedded single-chip microcomputer module is responsible for processing sensor information;
the alcohol sensor module is used for detecting the alcohol content in the expired air of the driver;
the GPS module is used for positioning the position information of the vehicle in real time;
the SACL005KA pressure sensor module is used as a pressure switch and starts a driving time timing module;
the SIM800C GSM/GPRS data transmission module is used for carrying out data interconnection with the Ali cloud platform in real time;
the voice module is used for carrying out voice alarm;
the mobile software end constitute by the APP of mountable on arbitrary intelligent Mobile device, the APP has real-time display driver alcohol concentration, real-time display driver current driving time, real-time location vehicle position and a key generation function of driving, login interface can appear for the first time logging in the APP, register through the cell-phone number and be connected with the implementation of Ali cloud, the data that upload to the high in the clouds on the hardware equipment end is seen in real time to the application interface through APP to can be through sending instruction to the high in the clouds and then control the mobile unit end.
The further technical scheme of the invention is as follows:
preferably, the STM32 embedded single-chip microcomputer adopts an STM32 embedded 32-bit microcontroller single-chip microcomputer as a control core, and the STM32 embedded single-chip microcomputer integrates functions of a reset circuit, low-voltage detection, a voltage regulator and an accurate RC oscillator together, so that the integrated circuit has the advantages of small size, high integration level, high reading and writing speed and the like. Meanwhile, in the aspect of system use, the embedded Flash memory and SRAM memory integrated ARM Cortex-M3 kernel is provided, all ARM tools and software can be compatible, and later-stage programming debugging and function expansion are facilitated.
Preferably, the SIM800C GSM/GPRS data transmission module uses the SIM800C data transmission module to perform real-time communication with the ari cloud platform, and the hardware structure of the SIM800C GSM/GPRS data transmission module is as shown in fig. 2. The module uses GPRS to carry out serial port communication with a remote server, breaks through the bottleneck that Bluetooth and WiFi modules can only carry out communication in a short distance or a fixed network range, and realizes the real thing networking; in addition, the SIM800C also has the functions of making and receiving calls, sending and receiving short messages, etc., and realizes fast communication with the software end.
Preferably, the NEO-6M miniGPS module used by the GPS module accurately positions the position information of the vehicle in real time. The module has the characteristics of high sensitivity, low power consumption, miniaturization and high positioning precision, and is suitable for vehicle-mounted and handheld equipment and other positioning systems.
Preferably, the voice module adopts a Chinese TTS character to voice conversion module to perform voice alarm through a loudspeaker, the voice output of the module is not hard, no pause exists among a plurality of characters, 5V access voltage is adopted, TTL serial port control is realized, a common singlechip is used, and a USB (universal serial bus) conversion serial port of a computer is used for controlling the module.
Preferably, the alcohol sensor module adopts an MQ-3 gas sensor as the alcohol detection module, and the gas-sensitive material used by the sensor is tin dioxide with low conductivity in clean air. When alcohol vapor is present in the environment in which the sensor is located, the conductivity of the sensor increases as the concentration of alcohol gas in the air increases. The change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit. The MQ-3 gas sensor has high sensitivity to alcohol, can resist the interference of gasoline, smoke and water vapor and has lower cost.
Preferably, the SACL005KA piezoelectric force sensor is mainly used for forming a pressure switch, and the internal working principle thereof is as follows: when the external pressure is higher than the set pressure, the disc in the pressure sensor instantaneously moves, the switch joint is pushed to be switched on or switched off by the connecting guide rod, and when the pressure is reduced to the rated pressure value, the disc is instantaneously reset, and the switch is automatically switched off; when the driver is in the driving position, the pressure switch senses the external pressure and is closed; if the driver passes the alcohol detection, the whole timing circuit is communicated, and the timer starts timing; when the driver leaves the driving position, the pressure switch is switched off, the timing circuit is switched off, and the timing is stopped.
The invention has the beneficial effects that:
(1) at present, an effective comprehensive safe driving system is lacked in the market, the scheme integrates the functions of alcohol detection, fatigue driving monitoring and the like, can effectively stop dangerous behaviors such as drunk driving, fatigue driving and the like, and provides effective guarantee for safe use of buses and safe traveling of private cars;
(2) the scheme has strong universality and simple operation, is suitable for most motor vehicles on the market, and can be installed on any vehicle after simple installation and debugging. The software interface is simple to operate, friendly in man-machine interaction and low in learning cost;
(3) according to the scheme, a sensor and a single chip microcomputer which are mature on the market are selected for function development, the cost is low, the service life is long, and frequent maintenance is not needed in the service cycle.
Drawings
FIG. 1 is a schematic diagram of a hardware design;
SIM800C data transfer module of fig. 2;
FIG. 3 is a schematic diagram and a physical diagram of the MQ-3 gas sensor;
fig. 4 data transmission process.
The specific implementation structure is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The intelligent assistant system for safe driving comprises a vehicle-mounted hardware end and a mobile software end, wherein hardware equipment is installed in an automobile cab, and the software end can be installed on any intelligent mobile terminal.
Vehicle-mounted hardware terminal
The vehicle-mounted hardware end is installed in a vehicle cab and mainly comprises an STM32 embedded single-chip microcomputer module (responsible for processing sensor information), an MQ-3 alcohol sensor module (detecting the alcohol content in the exhaled air of a driver), a GPS module (positioning the position information of a vehicle in real time), an SACL005KA pressure sensor module (serving as a pressure switch and starting a driving time timing module), an SIM800C GSM/GPRS data transmission module (performing data interconnection with an Aliyun platform in real time) and a Chinese TTS text-to-speech module (performing speech alarm).
The design schematic diagram of the hardware end is shown in fig. 1.
(1) STM32 embedded single-chip microcomputer
The product adopts STM32 embedded 32-bit microcontroller singlechip as the core of control. The STM32 embedded single-chip microcomputer integrates functions of a reset circuit, low-voltage detection, a voltage regulator, an accurate RC oscillator and the like, and has the advantages of small size, high integration level, high reading and writing speed and the like. Meanwhile, in the aspect of system use, the embedded Flash memory and SRAM memory integrated ARM Cortex-M3 kernel is provided, all ARM tools and software can be compatible, and later-stage programming debugging and function expansion are facilitated.
(2) SIM800C GSM/GPRS data transmission module
The product uses the SIM800C data transmission module to communicate with the ari cloud platform in real time, and the hardware structure is shown in fig. 2. The module uses GPRS to carry out serial port communication with a remote server, breaks through the bottleneck that Bluetooth and WiFi modules can only carry out communication in a short distance or a fixed network range, and realizes the real thing networking; in addition, the SIM800C also has the functions of making and receiving calls, sending and receiving short messages, etc., and realizes fast communication with the software end.
(3) NEO-6M miniGPS positioning module
The NEO-6M miniGPS module used by the product accurately positions the position information of the vehicle in real time. The module has the characteristics of high sensitivity, low power consumption, miniaturization and high positioning precision, and is suitable for vehicle-mounted and handheld equipment and other positioning systems.
(4) Chinese TTS character-to-speech module
The product adopts chinese TTS characters to change pronunciation module and carries out audio alert through loudspeaker, and this module speech output is not very hard, and there is not pause between a plurality of characters, adopts 5V access voltage, possesses TTL serial ports control, can use singlechip commonly used, and computer USB changes the serial ports and controls this module.
(5) MQ-3 gas sensor
The product adopts an MQ-3 gas sensor as an alcohol detection module, and the schematic diagram is shown in fig. 3. The gas sensitive material used in the sensor is tin dioxide, which has a relatively low conductivity in clean air. When alcohol vapor is present in the environment in which the sensor is located, the conductivity of the sensor increases as the concentration of alcohol gas in the air increases. The change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit. The MQ-3 gas sensor has high sensitivity to alcohol, can resist the interference of gasoline, smoke and water vapor and has lower cost.
(6) SACL005KA pressure sensor module
The SACL005KA piezoelectric force sensor is mainly used for forming a pressure switch, and the internal working principle is as follows: when the external pressure is higher than the set pressure, the disc in the pressure sensor instantaneously moves, the switch joint is pushed to be switched on or switched off by the connecting guide rod, and when the pressure is reduced to the rated pressure value, the disc is instantaneously reset, and the switch is automatically switched off. When the driver is in the driving position, the pressure switch senses the external pressure and is closed; if the driver passes through the alcohol detection, the whole timing circuit is communicated, and the timer starts to time. When the driver leaves the driving position, the pressure switch is switched off, the timing circuit is switched off, and the timing is stopped.
Mobile software terminal
The mobile software end of the assistant is composed of APP which can be installed on any intelligent mobile device. The software is developed and completed based on visualization under the Aliskive cloud server, is simple to operate and good in man-machine interaction performance, and is very convenient to achieve interconnection and intercommunication with the Aliskive cloud platform.
The APP has the functions of displaying the alcohol concentration of the driver in real time, displaying the current driving time of the driver in real time, positioning the position of the vehicle in real time, driving with one key and the like. A registration interface appears when the APP is logged in for the first time, and connection with the Ali cloud is achieved through mobile phone number registration. Data uploaded to the cloud end by the hardware equipment end can be observed in real time through the application interface of the APP, and the vehicle-mounted equipment end can be controlled by sending an instruction to the cloud end.
2.2.2 function implementation
When the safe driving intelligent assistant works, data of the vehicle-mounted hardware end and the software end are transmitted through the Ali cloud service platform. The system constructs an Internet of things platform based on the Ali cloud console, creates a new product in the platform, and copies a connection key generated after creation into a single chip microcomputer program, so that interconnection and intercommunication between a vehicle-mounted device end and a cloud end are realized. The hardware equipment end sends data to the cloud end every 5 seconds, and the cloud end can also issue instructions to the equipment end, so that the remote control of the equipment end by the cloud end is realized.
The data transfer process is shown in fig. 4.
Based on the software and hardware design, the product can realize the following functions:
(1) drunk driving detection and alarm function
Based on MQ-3 alcohol detection device, the concentration of alcohol gas in the air can be detected in real time. When the alcohol content in the air exhaled by the driver exceeds a set threshold value and the vehicle is in a starting state, the safe driving intelligent assistant can send out a voice alarm and upload data to the Ali cloud Internet of things platform in real time through the SIM800C GPRS data transmission module. The Aliyun Internet of things platform transmits the alarm and the position information to the mobile APP terminal of the family members or the related personnel of the unit of the driver in real time, informs the driver of the suspected drunk driving state, and please stop in time.
When the vehicle is in an un-started state, the safe driving intelligent assistant can control the vehicle to start the power supply through the relay, so that the driver cannot start the vehicle and sends out voice alarm. And meanwhile, the alarm and the position information are transmitted to the mobile APP terminal. And when the mobile phone APP returns information and the alarm is relieved, the automobile can be started again.
(2) Fatigue driving monitoring and alarming function
The functional module mainly comprises a pressure sensor and a timer. When a driver enters a driving position to start a vehicle, the pressure sensor of the seat is triggered firstly, then the timer module is triggered, the driving time length is monitored, when the driving time length exceeds the national legal continuous driving time length by 4 hours and does not have a rest for more than 20 minutes or exceeds the preset driving time length, the safe driving intelligent assistant sends out a voice alarm, and the driving and position information of the vehicle is transmitted to the APP terminal through the data transmission module to give an alarm.
(3) Driving visual field deviation warning function
As can be seen from the related documents, the viewing angle of the driver is about 74 ° when the vehicle speed is 64km/h, and is only 40 ° when the vehicle speed is 97 km/h. When the driver leaves the view angle, dangerous conditions are easy to occur. Therefore, this product has set up driving visual field deviation warning function module, reforms this balanced sensor for hangers formula bluetooth headset, through detecting driver head balance angle position, confirms whether the driver is in normal driving posture, in case detect that the driver is in unusual driving position or when deviating from the normal driving visual field, this module will report an emergency and ask for help or increased vigilance to the driver through vibrations. After the driver recovers the normal driving position visual field, the alarm stops, behaviors of illegal driving such as dozing off, lowering head and playing mobile phones and the like of the driver can be effectively detected, and meanwhile, the module also has the existing function of the Bluetooth headset.
(4) One-key designated driving function
This product has set up a key and has designated the function of driving on the APP module, and when the driver appears drunk driving action, the operating personnel of software end or driver's family members accessible APP software know the vehicle position, around designate personnel's quantity to call the person of driving through a key and designate the button and replace driving, send the driver to arrive the destination safely.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. Safe driving intelligent assistant system, its characterized in that: the system comprises a vehicle-mounted hardware end and a mobile software end, wherein hardware equipment is installed in an automobile cab, and the software end can be installed on any intelligent mobile terminal;
the vehicle-mounted hardware end mainly comprises:
the STM32 embedded single-chip microcomputer module is responsible for processing sensor information;
the alcohol sensor module is used for detecting the alcohol content in the expired air of the driver;
the GPS module is used for positioning the position information of the vehicle in real time;
the SACL005KA pressure sensor module is used as a pressure switch and starts a driving time timing module;
the SIM800C GSM/GPRS data transmission module is used for carrying out data interconnection with the Ali cloud platform in real time;
the voice module is used for carrying out voice alarm;
the mobile software end constitute by the APP of mountable on arbitrary intelligent Mobile device, the APP has real-time display driver alcohol concentration, real-time display driver current driving time, real-time location vehicle position and a key generation function of driving, login interface can appear for the first time logging in the APP, register through the cell-phone number and be connected with the implementation of Ali cloud, the data that upload to the high in the clouds on the hardware equipment end is seen in real time to the application interface through APP to can be through sending instruction to the high in the clouds and then control the mobile unit end.
2. The intelligent assistant system for safe driving according to claim 1, characterized in that: the STM32 embedded single-chip microcomputer adopts an STM32 embedded 32-bit microcontroller single-chip microcomputer as a control core, the STM32 embedded single-chip microcomputer integrates functions of a reset circuit, low-voltage detection, a voltage regulator and an accurate RC oscillator, and meanwhile, in the aspect of system use, the STM32 embedded single-chip microcomputer is provided with an ARM Cortex-M3 inner core integrating an embedded Flash memory and an SRAM memory.
3. The intelligent assistant system for safe driving according to claim 1, characterized in that: the SIM800C GSM/GPRS data transmission module uses the SIM800C data transmission module to communicate with the Ali cloud platform in real time, and the SIM uses GPRS to communicate with a remote server in a serial port.
4. The intelligent assistant system for safe driving according to claim 1, characterized in that: and the NEO-6M miniGPS module used by the GPS module accurately positions the position information of the vehicle in real time.
5. The intelligent assistant system for safe driving according to claim 1, characterized in that: the voice module adopts a Chinese TTS character to voice conversion module to perform voice alarm through a loudspeaker, adopts 5V access voltage, has TTL serial port control, and uses a common singlechip and a computer USB to serial port to control the module.
6. The intelligent assistant system for safe driving according to claim 1, characterized in that: the alcohol sensor module adopts an MQ-3 gas sensor as an alcohol detection module, and the gas sensitive material used by the sensor is tin dioxide with lower conductivity in clean air.
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Application publication date: 20200911 |
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