TWI735881B - Warning system after drinking - Google Patents

Abstract

The present invention provides a warming system after drinking. The system includes a sensing-module for detecting a physiological characteristic parameters arranged in multiple position of a vehicle, and for detecting whether the driver satisfies the preset drink-driving condition according to the physiological characteristic parameters and a preset threshold. If the test learns that the driver meets the preset drink-driving condition, running a warn-lighting operation via an ECU of the vehicle, wherein warn-lighting operation is invert operation of one of front-lights/ back-lights of groups of the vehicle, waring pedestrians the driving in danger of the vehicle for avoiding the safety hidden danger caused by the drink-driving.

Description

Drunk driving warning system for traffic vehicles

The invention relates to the technical field of traffic safety, in particular to a drunk driving warning system for traffic vehicles.

With the progress of society and the development of economy, automobiles, as a means of transportation, are rapidly becoming popular in people’s lives. As more and more people own automobiles, the number of traffic accidents is increasing at an alarming rate every year. Traffic accidents happen every day in various places. In particular, drunken accidents often cause serious casualties. They not only destroy every healthy family, but also a waste of social resources. However, even if the police strengthen bans and severe legal penalties , Drunk driving accidents are still frequently staged. Therefore, self-prevention of drunk driving is a topic worth exploring. More than 200 people are killed under the wheel every day, and more than 50% of car accidents are related to drunk driving. Alcohol is essentially an anesthetic. After alcohol enters the human blood, it will affect the activities of the central nervous system and extend to the motor nerves and peripheral nerves, slowing the activities of the hands and feet, greatly reducing the timeliness, accuracy, coordination and reliability of their movements, and driving the physical strength and judgment of the driver. Power and coordination will decrease accordingly.

In order to prevent drunk driving, the traffic management department will inspect the driver, and use the alcohol tester to detect the alcohol concentration in the driver’s exhaled breath, and determine the driver’s drunkenness according to the standard. However, relying only on the inspection by the traffic management department is far from enough Yes, only a set of self-checking system is installed on the vehicle, and this set of self-checking system can control the starting device of the car, so as to effectively reduce drunk driving The situation of the car. my country's New Patent Announcement No. 412033 "In-vehicle Alcohol Sensing Control Safety Device" discloses an in-vehicle alcohol sensing control safety device that enables a car to sense the driver’s alcohol level, and automatically restrict the car when it exceeds the level. Do not drive, and make all direction lights flash and illuminate to warn, and the safety effect must be ensured. The conventional alcohol sensor control safety device in the car is mainly equipped with a controller in the car. The controller has a control circuit board, a relay, and an alcohol sensor. The alcohol sensor senses that the driver’s alcohol level exceeds the set value. Through the processing of the control circuit board, a signal is sent to the relay to make the relay open, so that the car’s starting wire system is cut off and cannot be started. , And make the connected car's turn signal power system operate, and each turn signal must flash to give a warning. And its power supply can be plugged into the cigarette lighter with its car cigarette lighter power connector.

However, if it is accidentally detected that the alcohol level exceeds the set value during driving, the car will be forcibly shut down to start the power system, which will cause danger in the driving of the vehicle. In addition, the power supply can be forcibly shut down by plugging and unplugging the car cigarette lighter power connector, so that the control circuit board loses its function. Moreover, the prior case of the prior art lacks in revealing the specific connection relationship between the in-vehicle alcohol sensing control safety device and the vehicle's starting power system.

In view of this, the inventor, in view of the shortcomings in the conventional technology, after careful experimentation and research, and a spirit of perseverance, finally conceived the present invention to overcome the above-mentioned problems.

In view of this, the purpose of the present invention is to provide a drunk driving warning system for traffic vehicles, which changes the conventional technology to hardly limit the starting mode of the car body engine, mainly by means of a special pair of lights on the exterior of the car body. The opening/closing mode allows other pedestrians/drivers to understand the current driver’s driving status, so as to monitor whether the driver is drunk or not, and even assist the police to pass special external police during temporary inspections. The indicator light can tell which car the driver is drinking, and there is no need to stop one car after the other for inspection, which effectively saves the time and efficiency of the temporary inspection. Moreover, the driver can be spontaneous through a soft method. Sexually understand that this method generates spontaneous awareness of the troubles that will occur during driving, and effectively avoids the hidden safety hazards and the loss of life and property caused by drunk driving.

In order to achieve one of the objectives of the present invention, the present invention proposes a drunk driving warning system for traffic vehicles, which includes a sensing module and a row computer connected to it. A predetermined position and includes a first sensing unit and a second sensing unit; the first sensing unit includes a gas receiver and a detection circuit, the gas receiver has a gas inlet and a control valve and is controlled by the control valve A gas to be measured enters the detection circuit through the gas inlet, and the detection circuit measures the alcohol concentration in the gas to be measured; the second sensing unit includes a judging circuit for detecting the The alcohol concentration in the gas to be measured is compared and analyzed to determine whether the detection result is greater than or equal to a preset threshold. When the detection result is greater than or equal to the preset threshold, the judgment circuit sends a signal to the trip computer, and the trip The computer controls the car lights to perform a light warning operation according to the working status of multiple car lights of the car body; the light warning operation is based on the working status of the car lights on the front side of the car body, the driving computer Control one of at least one of the groups of lights on the front of the vehicle body to turn on or off in reverse, and control one of at least one of the groups of lights on the rear of the vehicle body to turn on or off in reverse Reverse closing is used to warn pedestrians or other drivers outside the vehicle to know whether the vehicle is currently in a dangerous driving state.

According to an embodiment of the present invention, the detection circuit has an alcohol detector, a sense amplifier, and an analog-to-digital converter, and the judgment circuit has an arithmetic processor and a signal controller; wherein the alcohol detector is used to determine the waiting Measure the alcohol concentration in the gas, and after the measured value is amplified by the sensor amplifier, it is converted into a digital signal by the analog-to-digital converter and sent to the judgment circuit; the digital signal from the detection circuit is received by the arithmetic processor Compare and analyze and determine whether the test result is greater than or equal to the preset threshold; pass an interpretation signal through the signal controller It is sent to the trip computer so that the trip computer controls whether the lights of the vehicle body perform the light signal warning operation according to the interpretation signal.

According to an embodiment of the present invention, the predetermined position includes the top surface position of the driver seat corresponding to the roof, the position of the driver seat corresponding to the A-pillar of the window, the position above the dashboard in front of the driver, and the top surface position of the passenger seat corresponding to the roof , The front passenger seat corresponds to the B-pillar position of the window, and the position above the vehicle compartment in front of the passenger seat is one or more of the foregoing.

In order to achieve another objective of the invention, the present invention further proposes a drunk driving warning system for traffic vehicles, which includes a sensing module and a row-car computer connected to it. The sensing module is arranged in a car A predetermined position in the space and includes a first sensing unit and a second sensing unit. The first sensing unit includes a sweat receiver and a detection circuit. The sweat receiver has a plurality of fluid micropores and passes through the fluid The micro-hole allows a fluid to be tested to enter the detection circuit, and the detection circuit determines the alcohol concentration in the fluid to be tested; the second sensing unit includes a judging circuit for the detection The alcohol concentration in the measured fluid is compared and analyzed to determine whether the detection result is greater than or equal to a preset threshold. When the detection result is greater than or equal to the preset threshold, the judgment circuit sends a signal to the trip computer, the trip computer According to the working status of multiple lights of the vehicle body, the vehicle lights are controlled to perform a light signal warning operation; the light signal warning operation is based on the working status of the vehicle lights on the front side of the vehicle body, and the driving computer controls One of at least one of the groups of lights on the front side of the vehicle body is turned on or off in reverse, and one of the groups of lights on the rear of the vehicle body is controlled to be turned on or off in reverse. Turn off to warn pedestrians or other drivers outside of the vehicle whether the vehicle is currently in a dangerous driving state.

According to an embodiment of the present invention, the detection circuit has an alcohol detector, a sense amplifier, and an analog-to-digital converter, and the judgment circuit has an arithmetic processor and a signal controller; wherein the fluid microholes A fluid to be tested enters the detection circuit; the alcohol concentration in the fluid to be tested is measured by the alcohol detector, and the measured value is amplified by the sensing amplifier, It is then converted into a digital signal by the analog-to-digital converter and sent to the judgment circuit; the arithmetic processor receives the digital signal from the detection circuit for comparison and analysis and determines whether the detection result is greater than or equal to the preset threshold; The signal controller transmits an interpretation signal to the trip computer, so that the trip computer controls whether the lights of the vehicle body perform the light warning operation according to the interpretation signal.

According to an embodiment of the present invention, the predetermined position includes a detectable position where the vehicle body has physical contact with the driver or the driver's body.

According to an embodiment of the present invention, the pair of front side lights of the vehicle body performing the signal warning operation includes one of at least one of a left/right headlight, a left/right front fog light, and a left/right front turn signal At least one pair of lights on the rear side of the vehicle body performing the warning operation of the light signal includes at least one of a left/right rear light, a left/right rear fog light, a left/right brake light, and a left/right rear turn signal One of at least one of the pair of vehicle lights on the front side of the vehicle body performing the signal warning operation corresponds to one of the at least one group of the pair of rear lights.

According to an embodiment of the present invention, one of at least one of the paired front side lights and the rear side paired lights of the vehicle body performing the light signal warning operation is a vehicle light on the same side or a vehicle light on a different side Car lights.

According to an embodiment of the present invention, the detection time section includes a continuous detection time when the vehicle body is in a driving state, a continuous detection time when the vehicle body is in a stationary state, and an interval when the vehicle body is in a driving state Any of the foregoing detection time and an interval detection time during which the vehicle body is in a stationary state, the gas sensor is based on the plurality of alcohol concentration values detected in the vehicle interior space during the detection time period. Multiple pieces of detection data are generated, the detection data includes either or both of the normal concentration and the abnormal concentration, and the normal concentration and the abnormal concentration in the detection data have an abnormal ratio value, When the abnormal proportion value exceeds 5%, it is determined that the alcohol concentration is greater than or equal to the preset threshold.

According to an embodiment of the present invention, the signal controller is further used to receive a specific driving data from the trip computer, and the specific vehicle body data includes driving speed, window opening state, and air-conditioning operation In any of the foregoing states, the signal controller receives the specific driving data from the driving computer, so that the preset threshold value is based on whether the car body is in a high-speed driving state, a low-speed driving state, or a stationary state, and the car body is in a car state. The airtight state in which the windows are fully closed or the flow state in which the windows are open causes changes in the gas circulation state in the vehicle body.

According to an embodiment of the present invention, the predetermined threshold is any value in the range of the alcohol concentration of 0.05 to 0.15 mg/liter.

This "Summary of the Invention" introduces some selected concepts in a simplified form, which will be further described in the "Implementation Modes" below. This "Summary of the Invention" is not intended to identify the key features or basic features of the subject matter of the patent application, nor is it intended to be used to limit the scope of the subject matter of the patent application.

10: Sensing module

100: data transmission interface

11: The first sensing unit

111: gas receiver

111A: Gas inlet

111B: Control valve

112: detection circuit

112A: Alcohol detector

112B: Sense amplifier

112C: Analog-to-digital converter

12: The second sensing unit

121: Judgment Circuit

121A: arithmetic processor

121B: Signal Controller

20: Trip computer

30: Sensing module

31: The first sensing unit

311: Sweat Receiver

312: Detection Circuit

312A: Alcohol detector

312B: sense amplifier

312C: Analog-to-digital converter

32: second sensing unit

321: Judgment Circuit

321A: arithmetic processor

321B: Signal Controller

BP1, BP2: physiological characteristic parameters

L1, L2: predetermined position

S1-S4: Drunk driving warning method

Figure 1 is a flow chart of the alcohol warning method of the present invention.

FIG. 2 is a schematic diagram showing the appearance of an embodiment of the drunk driving warning system of the present invention.

FIG. 3 is a schematic diagram of the functional block diagram of FIG. 2 of the present invention.

FIG. 4 is a schematic diagram of the disposition position of the sensing module of FIG. 2 of the present invention.

FIG. 5 is a functional block diagram of another embodiment of the drunk driving warning system of the present invention.

FIG. 6 is a schematic diagram of the configuration position of the sensing module of FIG. 5 of the present invention.

The detailed description and technical content of the present invention are described as follows in conjunction with the drawings. However, the drawings are only provided for reference and description, and are not intended to limit the present invention. Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. Original hair The description covers any alternatives, modifications, equivalent methods and schemes made on the essence and scope of the present invention. In order for the public to have a thorough understanding of the present invention, specific details are described in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

In conjunction with the drawings and preferred embodiments of the present invention, the following further describes the technical means adopted by the present invention to achieve the intended purpose of the invention. For the detailed description and technical content of the present invention, the attached drawings are only for reference and explanation. It is not used to limit the present invention. In the following description of the present invention, the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention to simplify the description, rather than indicating that each device or element in the text must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

The following describes the drunk driving warning method and warning system according to the embodiments of the present invention with reference to the accompanying drawings. Please refer to Figures 1 to 4. The present invention proposes a drunk driving warning method and a drunk driving warning system for traffic vehicles. First, the description of the drunk driving warning method The steps include: S1: confirming that a vehicle body is in a starting operation state; S2: detecting a physiological characteristic parameter in the vehicle interior space through at least one sensing module arranged at a predetermined position in the vehicle interior space; S3: According to the physiological characteristic parameter in a detection time segment in the vehicle interior space and a preset threshold, to detect and compare whether the physiological characteristic parameter is greater than or equal to the preset threshold; S4: when the physiological characteristic The parameter is greater than or equal to the preset threshold value, and the vehicle lights are controlled to perform a light signal warning operation according to the working status of the vehicle lights and the vehicle computer through the vehicle body.

Based on the above description, the human body will undergo physiological changes after the driver drinks alcohol, for example: the pupils of the eyes will dilate, the exhaled air and sweat contain alcohol, etc., so the driver can detect whether the driver is drinking and driving according to the driver’s body characteristics. , Wherein the human body characteristic parameters correspond to the information of human body physiological changes related to drinking. Specifically, since the main component of wine is alcohol, it has volatile It is sexual and has a special fragrance. If the driver is drinking, the driver’s sweat and exhaled breath will contain alcohol. Therefore, in the drunk driving warning method of the embodiment of the present invention, the alcohol concentration in the driver's sweat and exhaled breath is monitored by the sensor to detect whether the user is drunk driving. The specific description of the drunk driving warning method in the embodiment of the present invention is as follows:

As mentioned above, the way of light warning operation is through a special light on/off form, where the front and rear sides of the vehicle body contain multiple pairs of lights respectively, and the light warning operation is based on the front side of the vehicle body. The working state of the vehicle lights, the trip computer controls at least one of the group of lights on the front side of the vehicle body to perform reverse opening or reverse turning off, and controls the group of lights on the rear side of the vehicle body One of at least one group performs reverse opening or reverse closing to warn pedestrians or other drivers outside the vehicle to know whether the vehicle is currently in a dangerous driving state. In order to accurately detect whether the driver is drinking and driving, sensors are installed in multiple locations of the vehicle in advance, and the physiological characteristic parameters of the driver in the interior space of the vehicle are obtained through multiple sensing modules installed in multiple locations of the vehicle. Even the physiological characteristics of the co-pilot.

As mentioned above, accidents are prone to accidents when barriers are created by communication between passers-by. Therefore, if the communication between passers-by can be smooth, it plays a key factor in preventing traffic accidents. Apart from using horns to warn of danger and reminding attention between cars and people, and between cars, the most important thing is the "vehicle light signal". Generally, the exterior of the front and rear sides of the car body contains multiple pairs of lights, such as headlights, width lights, rear lights, brake lights, turn signals, fog lights, reversing lights, and so on. The headlights are located in front of the vehicle, and the color of the headlights is white or light yellow. The headlight can change the light exposure distance. There are low beam and high beam. The projection distance of the low beam is relatively short, and the range of about 40 meters ahead can be seen clearly. The projection of the high beam allows the driver to clearly see the situation 100 meters ahead. The rear lights are located at the rear of the vehicle and are red in color. When the headlights are turned on, the taillights of the car will also be turned on at the same time, mainly to allow vehicles or pedestrians behind to clearly see that there is a car ahead. The color of the brake lights is red. It lights up when the driver of the car steps on the brake pedal, or the driver of the motorcycle grips the front and rear brake grips. The brake lights should be on continuously, not flashing. Brake light setting position and car tail light The same, but the brightness is about five times that of the taillight. The car width light is also called the "front light". The color of the light is white, light yellow or orange. It is usually used at dusk or when the sky is not completely dark. The effect of turning on is actually the same as the car width light, which is mainly for people to recognize The width of the car body. Fog lights are divided into front fog lights and rear fog lights. The front fog lights can be yellow or light yellow or white, and the rear fog lights are limited to red. They are used in heavy fog, heavy rain or poor vision, and are mainly used for auxiliary lighting or warning.

According to the characteristics and considerations of the application of the paired lights of the vehicle body, it will not cause other pedestrians or drivers to confuse the identification. In the embodiment of the present invention, the pair of front lights of the vehicle body performing the signal warning operation includes one of at least one of a left/right headlight, a left/right front fog light, and a left/right front turn signal. The pair of lights on the rear side of the vehicle body performing the signal warning operation includes at least one of a left/right tail light, a left/right rear fog light, a left/right brake light, and a left/right rear turn signal. One. Preferably, the execution of the signal warning operation may not include the left/right front turn signals on the front side and the rear side of the vehicle body, and the main consideration may cause confusion in identification of other pedestrians or drivers.

According to the above method, the present invention further proposes a drunk driving warning system for traffic vehicles to more clearly explain the operation mode between the sensor module and the vehicle body. As shown in FIG. 2, the drunk driving warning system includes a sensing module 10 and a row of car computers 20 connected thereto. The sensing module 10 is disposed at a predetermined position L1 in the vehicle interior space and includes a first sensing unit 11 and a second Two sensing units 12, the first sensing unit 11 is used to detect a physiological characteristic parameter BP1 in the interior space of the car; the second sensing unit 12 is used to detect a detection time segment in the interior space of the car The physiological characteristic parameter BP1 is compared with a preset threshold to detect and compare whether the physiological characteristic parameter BP1 is greater than or equal to the preset threshold. When the physiological characteristic parameter BP1 is greater than or equal to the preset threshold, the second sense The test unit 12 is used to transmit an abnormal signal to the trip computer 20, and the trip computer 20 controls the lights to execute a light signal warning operation according to the working status of the vehicle body; wherein the front side of the vehicle body and The rear side respectively includes multiple pairs of vehicle lights. The warning operation of the light signal is based on the working status of the multiple pairs of lights on the front side of the vehicle body. The trip computer 20 controls one of at least one of the groups of vehicle lights on the front side of the vehicle body. One performs reverse opening or reverse closing, and controls the group of lights on the rear side of the vehicle body. One of at least one group performs reverse opening or reverse closing to warn pedestrians or other drivers outside the vehicle to know whether the vehicle is currently in a dangerous driving state.

Continuing from the above, the trip computer 20 (Electronic Control Unit, ECU) is an electronic control unit, and in terms of usage, it is a special-purpose microcomputer controller for automobiles. Like ordinary computers, it is composed of a microprocessor (CPU), memory (ROM, RAM), input/output interface (I/O), and analog-to-digital converter (A/D) large-scale integrated circuit. The program operation of ECU takes the headlights as an example. After starting the engine, the driver turns on the headlight switch → ECU receives the switch signal for data processing → obtains the instructions of the driving headlights → confirms the key insertion through the CAN bus → confirms the headlights In place → confirm turning on the headlights → turn the signal into a PWM analog signal through the software → turn on the headlights. According to the operation mode of the warning system of the embodiment of the present invention, the alcohol concentration is greater than or equal to the preset threshold, and the second sensing unit 12 sends a signal to the trip computer 20 to issue a command to control the car through data calculation processing. The various components on the front/rear side of the body perform one on and off of the vehicle lights as a drunk driving warning.

According to an embodiment of the present invention, the sensing module 10 includes a gas sensor disposed at the predetermined position L1 in the vehicle interior space and is provided with a data transmission interface 100 to connect to the trip computer 20 for signal transmission , And the physiological characteristic parameter BP1 is the alcohol concentration of the gas, and the gas sensor is used to detect the alcohol concentration of the gas in the car interior. The predetermined position L1 includes the top position of the driver’s seat corresponding to the roof of the car, and the driver’s seat corresponding to the car’s top surface. The position of the A-pillar of the window, the position above the dashboard in front of the driver's seat, the position of the top surface of the front passenger seat corresponding to the roof, the position of the B-pillar of the front passenger seat corresponding to the window, the position above the car box in front of the front passenger seat, or any of the foregoing. More than two. The data transmission interface 100 can be connected to the trip computer 20 through an OBD II connector wire.

As mentioned above, in this embodiment, the first sensing unit 11 includes a gas receiver 111 and a detection circuit 112, and the second sensing unit 12 includes a judgment circuit 121, and the gas receiver has a gas inlet. 111A and a control valve 111B. The detection circuit 112 has an alcohol detector 112A, a sense amplifier 112B, and an analog-to-digital converter 112C. The judgment circuit 121 has an operational Arithmetic processor 121A and a signal controller 121B; wherein the control valve 111B controls a gas to be measured to enter the detection circuit 112 through the gas inlet 111A; the alcohol detector 112A measures the alcohol concentration in the gas to be measured, and After the measured value is amplified by the sense amplifier 112B, it is converted into a digital signal by the analog-to-digital converter 112C and sent to the judgment circuit 121; the arithmetic processor 121A receives the digital signal from the detection circuit 112 for comparison and analysis And it is determined whether the detection result is greater than or equal to the preset threshold; an interpretation signal is sent to the trip computer 20 through the signal controller 121B, so that the trip computer 20 controls the trip computer 20 according to the interpretation signal (whether it is an abnormal signal) Whether the lights of the vehicle body perform the warning operation of the lights.

Specifically, gas sensors include thermal sensors, electrochemical sensors, magnetic sensors, and so on. Among them, the thermal sensor uses the different thermal conductivity of different gases to detect different gases. According to a large number of experiments, the corresponding relationship between the gas of different alcohol concentration and the thermal conductivity of the thermal element can be calibrated in advance, so as to according to the thermal element The change in thermal conductivity of the driver obtains the alcohol concentration in the driver’s exhaled breath.

The electrochemical sensor uses the difference in oxygen concentration of different gases to cause different concentration electromotive force. According to a large number of experiments, the corresponding relationship between the gas with different alcohol concentration and the concentration electromotive force can be calibrated in advance. The higher the concentration of alcohol in the gas The higher the oxygen content, the lower the oxygen content, so as to obtain the alcohol concentration in the driver's exhaled breath according to the change of the concentration electromotive force.

The magnetic sensor uses the different magnetization characteristics of the gas with different oxygen content. It can be calibrated in advance according to a large number of experiments. Among them, the higher the alcohol concentration in the gas, the lower the oxygen content. Correspondence relationship, so as to obtain the alcohol concentration in the driver's exhaled breath according to the change of the magnetization characteristic.

According to an embodiment of the present invention, the gas sensor can be, for example, a FIGARO sensor, which uses tin dioxide semiconductors to detect the alcohol concentration in the space; preferably, the gas sensor adopts an MQ3 alcohol sensor, which mainly includes Several advantages: 1. With signal output indication; 2. Dual signal output (Analog output and TTL level output); 3. TTL output effective signal is low level (the signal light is on when the output is low, and can be directly connected to the driving computer); 4. Analog output 0~5V voltage, the higher the concentration The higher the voltage; 5. High sensitivity and good selectivity to ethanol vapor; 6. Long service life and reliable stability; 7. Fast response and recovery characteristics.

Please refer to Figures 5 to 6, the present invention provides another embodiment of a drunk driving warning system. In this embodiment, the drunk driving warning system includes a sensing module 30 and the trip computer 20 connected to it. The sensing module The group 30 is configured at a predetermined position L2 in the car space and includes a first sensing unit 31 and a second sensing unit 32. The first sensing unit 31 is used to detect a physiological characteristic parameter BP2 in the car space ; The second sensing unit 12 is used to detect the physiological characteristic parameter BP2 and a preset threshold in a detection period of time in the interior space to detect whether the physiological characteristic parameter BP2 is greater than or equal to the The preset threshold value. When the physiological characteristic parameter BP2 is greater than or equal to the preset threshold value, the second sensing unit 32 transmits an abnormal signal to the trip computer 20, and the trip computer 20 determines the number of lights on the vehicle body The working state is to control the vehicle lights to perform a light signal warning operation; the light signal warning operation method is the same as that described in the above-mentioned embodiment, and will not be further described here.

According to an embodiment of the present invention, the sensing module 30 includes a sweat sensor disposed at the predetermined position L2 in the vehicle interior space and is provided with a data transmission interface (not shown) to connect to the trip computer 20 For signal transmission, the physiological characteristic parameter BP2 is the alcohol concentration in sweat, and the sweat sensor is used to detect the alcohol concentration in the driver’s sweat in the car interior. The predetermined position L2 includes the car body and the driver It has a detectable position for physical contact, or it can be worn on the driver's body. Specifically, according to the driver’s driving habits, sweat sensors are installed at detectable positions such as the steering wheel, start switch, shift lever, etc. that are in direct contact with the driver’s limbs, so as to pass the preset detectable positions in the vehicle body space. The sweat sensor at the measuring position detects the alcohol concentration in the driver's sweat. For example, a sweat sensor can use a plastic sensor as an interface with the skin, such as a patch, set in a position where the driver’s limbs directly touch or a detectable position on the human body. The soft circuit in the sweat sensor The silicon chip on the board performs complex signal processing to analyze the sweat immediately when it is wicked away. Wherein, the data transmission interface can be connected to the trip computer 20 through OBD Ⅱ connector wire.

As mentioned above, in this embodiment, the first sensing unit 31 includes a sweat receiver 311 and a detection circuit 312, the second sensing unit 32 includes a judgment circuit 321, and the surface of the sweat receiver 311 With a plurality of fluid micro-holes (not shown), the detection circuit 312 has an alcohol detector 312A, a sense amplifier 312B, and an analog-to-digital converter 312C. The judgment circuit 321 has an arithmetic processor 321A and a signal control 321B; wherein a fluid to be measured (for example: driver’s sweat) enters the detection circuit 312 through the fluid micropores; the alcohol concentration in the fluid to be tested is measured by the alcohol detector 312A, and the measured value After being amplified by the sense amplifier 312B, it is converted into a digital signal by the analog-to-digital converter 312C and sent to the judgment circuit 321; the arithmetic processor 321A receives the digital signal from the detection circuit 312 for comparison and analysis and determines the detection Whether the result is greater than or equal to the preset threshold; through the signal controller 321B, an interpretation signal is sent to the trip computer 20, so that the trip computer 20 controls whether the lights of the vehicle body are executed according to the interpretation signal This light warns of operation.

In order to more clearly illustrate the process of detecting the alcohol concentration in the driver’s sweat by the sweat sensor in the embodiments of the present invention, the following describes the specific working principle of the sweat sensor: specifically, the sweat sensor can Use capacitive, ultrasonic, tuning fork, resonance and other types of sensors. Among them, the capacitive sweat sensor is used in different liquids to be measured. Due to the different buoyancy of the standard object, the distance between the two plates of the capacitor connected to the standard object changes, which in turn causes the change in capacitance. Therefore, in this embodiment, according to a large number of experiments, the correspondence relationship between the sweat containing different alcohol concentrations and the capacitance change is calibrated in advance, so as to obtain the alcohol concentration in the driver's sweat according to the capacitance change.

The ultrasonic sweat sensor uses mechanical waves and ultrasonic waves higher than 20KHz, which can only propagate in the liquid medium in the form of longitudinal waves. The phase, frequency, speed and attenuation of its propagation will all be affected. Affected by the nature of the medium. Therefore, in this embodiment, pre-calibrated according to a large number of experiments, the corresponding relationship between the sweat containing different alcohol concentrations and the phase, frequency and speed of the longitudinal wave and the attenuation degree, so that the attenuation degree is also affected according to the phase, frequency and speed of the longitudinal wave. Change, get the alcohol concentration in the driver’s sweat.

The tuning fork sweat sensor uses the change in the natural frequency of the smaller quality tuning fork vibration in different liquids to measure the density of the liquid. Therefore, in this embodiment, according to a large number of experiments, the corresponding relationship between the sweat containing different alcohol concentrations and the natural frequency of the tuning fork vibration is calibrated in advance, so as to obtain the alcohol concentration in the driver's sweat according to the change of the natural frequency of the tuning fork vibration.

The resonant sweat sensor is used for different liquids, and the contact with the elastic sensitive element causes the equivalent quality of the system to change, which causes the natural frequency of the system to change. Therefore, in this embodiment, according to a large number of experiments in advance, the correspondence between sweat containing different alcohol concentrations and the change in natural frequency is calibrated, so as to obtain the alcohol concentration in the driver's sweat according to the change in natural frequency.

According to each embodiment of the warning method and warning system of the present invention, one of at least one of the pair of front side lights and the rear side pair of lights of the vehicle body performing the light signal warning operation is the same Side lights or different side lights

According to each embodiment of the warning method and the warning system of the present invention, one of at least one of the pair of front lights of the vehicle body that performs the light signal warning operation corresponds to one of the pair of rear lights One of at least one of the groups; for example, if one of at least one of the pair of front lights of the vehicle body performing the warning operation of the light signal is a left/right headlight, the light signal is warning One of at least one of the paired lights on the rear side of the vehicle body in operation is a left/right rear light; if at least one of the paired lights on the front side of the vehicle body executes the signal warning operation One of the left/right front fog lamps is a left/right front fog lamp, and one of at least one of the pair of vehicle lights on the rear side of the vehicle body that the signal warning operates is a left/right rear fog lamp.

According to various embodiments of the warning method and the warning system of the present invention, the detection The time section includes a continuous detection time when the vehicle body is in a driving state, a continuous detection time when the vehicle body is in a stationary state, an interval detection time when the vehicle body is in a driving state, and a time when the vehicle body is in a stationary state. For any of the foregoing at an interval detection time, the gas sensor generates a plurality of detection data according to the plurality of alcohol concentration values detected in the detection time zone in the interior space of the vehicle, the detections The data includes either or both of the normal concentration and the abnormal concentration, and the detected data has an abnormal ratio between the normal concentration and the abnormal concentration. When the abnormal ratio exceeds 5%, the alcohol is judged The concentration is greater than or equal to the preset threshold.

According to each embodiment of the warning method and warning system of the present invention, the preset threshold value is based on whether the vehicle body is in a high-speed driving state, a low-speed driving state, or a stationary state, the vehicle body is in a closed state with the windows fully closed, and the vehicle is in a closed state. Any one or a combination of the foregoing one or more of the flow state of the window open and the air conditioner open or closed state of the vehicle body causes the air circulation state of the vehicle interior space to change and fluctuate.

Continuing from the above, the signal controller (121B, 321B) in the warning system of the present invention is further used to receive a specific driving data from the trip computer. The specific vehicle body data includes driving speed, window opening status, and air-conditioning. In any of the foregoing operating states, the signal controller receives the specific driving data from the driving computer, so that the preset threshold value is based on whether the car is in a high-speed, low-speed, or stationary state, and the car is in a state of The airtight state where the windows are fully closed or the flow state where the windows are open causes changes in the gas circulation state in the vehicle body.

According to each embodiment of the warning method and the warning system of the present invention, the preset threshold value is any value in the range of the alcohol concentration of 0.05 to 0.15 mg/liter. Basically, the MQ3 alcohol sensor used in the present invention can detect the alcohol concentration in the gas with an accuracy of approximately 0.05 mg/liter.

Continuing from the above, the abnormal ratio value can be adjusted according to the actual application, and there is no restriction here. Because the driver may drive for a long time or for a short time during driving (after driving a short distance) Parking and then continue driving), and the window of the driver’s seat or other seats or the sunroof will be opened during driving or stopping. These variables may affect the number of alcohol concentrations detected in the detection time period. Therefore, when the abnormal ratio value is defined as more than 5%, it is judged that the alcohol concentration is greater than or equal to the preset threshold, instead of defining the abnormal ratio value as exceeding 0%; basically, the abnormal ratio value can be between 1 and 5% between.

In summary, the drunk driving warning method and warning system for traffic vehicles of the present invention are different from the conventional technology which rigidly restricts the starting of the engine of the vehicle body. It is mainly activated by the special pair of lights outside the vehicle body The /closed form allows other pedestrians/drivers to understand the current driver's driving status, so as to monitor whether the driver is drunk or not, and even assist the police to know which car is the driver through a special external warning light during a temporary inspection In the state of drinking, there is no need to stop one car after another for inspection, which effectively saves the time and efficiency of the temporary inspection. Moreover, the soft method enables the driver to spontaneously understand the impact of this method on his own driving process. The troubles caused spontaneous awareness, which effectively avoided the hidden safety hazards and the loss of life and property caused by drunk driving.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to the definition of the appended invention application patent scope.

100: data transmission interface

111: gas receiver

111A: Gas inlet

111B: Control valve

112: detection circuit

121: Judgment Circuit

20: Trip computer

Claims (10)

A drunk driving warning system, comprising: a sensing module and a row-car computer connected to it, the sensing module being disposed at a predetermined position in a vehicle interior space and including: a first sensing unit including a gas receiver And a detection circuit, the gas receiver has a gas inlet and a control valve, and the control valve controls a gas to be measured to enter the detection circuit through the gas inlet, and the detection circuit determines the alcohol concentration in the gas to be measured; The second sensing unit includes a judging circuit for comparing and analyzing the alcohol concentration in the gas to be measured in a detection time period to determine whether the detection result is greater than or equal to a preset threshold. If the result is greater than or equal to the preset threshold, the second sensing unit sends a signal to the trip computer, and the trip computer controls the lights to perform a light signal warning operation according to the operating states of the lights of the vehicle body; The light signal warning operation is based on the working status of the multiple pairs of lights on the front of the vehicle body. The trip computer controls at least one of the groups of lights on the front side of the vehicle body to perform reverse turn on or reverse turn off. , And controlling one of at least one of the groups of lights on the rear side of the vehicle body to turn on or turn off in reverse to warn pedestrians or other drivers outside the vehicle body whether the vehicle body is currently in Dangerous driving state. For example, the drunk driving warning system described in claim 1, wherein the detection circuit has an alcohol detector, a sense amplifier and an analog-to-digital converter, and the judgment circuit has an arithmetic processor and a signal controller; wherein Measure the alcohol concentration in the gas to be measured by the alcohol detector, and after the measured value is amplified by the sensor amplifier, it is converted into a digital signal by the analog-to-digital converter and sent to the judgment circuit; The arithmetic processor receives the digital signal from the detection circuit for comparison and analysis and determines whether the detection result is greater than or equal to the preset threshold; the signal controller sends an interpretation signal to the trip computer to make the trip The computer controls whether the lights of the vehicle body perform the light signal warning operation according to the interpretation signal. The drunk driving warning system described in item 1 of the scope of patent application, wherein the predetermined position includes the top surface position of the driver's seat corresponding to the roof, the position of the driver's seat corresponding to the A-pillar of the window, the position above the instrument panel in front of the driver, and the passenger seat Corresponding to any one or more of the above-mentioned position of the top surface of the vehicle roof, the position of the B-pillar corresponding to the window of the front passenger seat, and the position above the vehicle box in front of the front passenger seat. A drunk driving warning system, comprising: a sensing module and a row computer connected to it. The sensing module is arranged at a predetermined position in a car space and includes: a first sensing unit including a sweat receiver And a detection circuit, the sweat receiver has a plurality of fluid micropores and a fluid to be measured enters the detection circuit through the fluid micropores, and the detection circuit measures the alcohol concentration in the fluid to be measured; The measurement unit includes a judgment circuit for comparing and analyzing the alcohol concentration in the fluid to be measured in a detection time period to determine whether the detection result is greater than or equal to a preset threshold. When the detection result is greater than Or equal to the preset threshold, the judging circuit sends a signal to the trip computer, and the trip computer controls the lights to perform a light warning operation according to the working status of the multiple lights of the vehicle body; wherein the light is warning The operation is based on the working status of multiple pairs of lights on the front side of the vehicle body. The trip computer controls at least one of the groups of lights on the front side of the vehicle body to perform reverse opening or reverse closing, and control the vehicle One of at least one of the groups of lights on the rear side of the vehicle is turned on or turned off in reverse to warn pedestrians or other drivers outside of the vehicle whether the vehicle is currently in danger Driving state. For example, the drunk driving warning system described in claim 4, wherein the detection circuit has an alcohol detector, a sense amplifier and an analog-to-digital converter, and the judgment circuit has an arithmetic processor and a signal controller; wherein The alcohol detector is used to measure the alcohol concentration in the fluid to be measured, and the measured value is amplified by the sensing amplifier, and then converted into a digital signal by the analog-to-digital converter and sent to the judgment circuit; Receive the digital signal from the detection circuit for comparison and analysis and determine whether the detection result is greater than or equal to the preset threshold; through the signal controller, an interpretation signal is sent to the trip computer, so that the trip computer can read the signal according to the interpretation signal To control whether the lights of the vehicle body execute the light signal warning operation. The drunk driving warning system described in item 4 of the scope of patent application, wherein the predetermined position includes a detectable position where the vehicle body has physical contact with the driver or the driver's body. For example, the drunk driving warning system described in item 1 or 4 of the scope of patent application, wherein the pair of front side lights of the vehicle body that executes the light signal warning operation includes a left/right headlight, a left/right front fog light, and a left/right front steering One of at least one group of lights. The pair of lights on the rear side of the vehicle body that performs the warning operation of the light includes a left/right tail light, a left/right rear fog light, a left/right brake light, and a left/right brake light. One of at least one group of the right rear turn signal lamp, and one of the at least one group of the pair of front lights of the vehicle body performing the signal warning operation corresponds to the one of the pair of rear lights At least one of one group. Such as the drunk driving warning system described in item 1 or 4 of the scope of patent application, wherein the detection time section includes a continuous detection time when the vehicle body is in a driving state, a continuous detection time when the vehicle body is in a stationary state, An interval detection time when the vehicle body is in a driving state and the vehicle body is in a stationary state Any one of the foregoing at an interval detection time of the state, the gas sensor generates a plurality of detection data according to the plurality of alcohol concentration values detected in the detection time zone in the interior space of the vehicle, the The detection data includes either or both of the normal concentration and the abnormal concentration, and the normal concentration and the abnormal concentration in the detection data have an abnormal ratio value. When the abnormal ratio value exceeds 5%, It is determined that the alcohol concentration is greater than or equal to the preset threshold. For example, the drunk driving warning system described in item 2 or 5 of the scope of patent application, wherein the signal controller is further used to receive a specific driving data of the trip computer, and the specific vehicle body data includes driving speed, window opening state, and air-conditioning operation In any of the foregoing states, the signal controller receives the specific driving data from the driving computer, so that the preset threshold value is based on whether the car body is in a high-speed driving state, a low-speed driving state, or a stationary state, and the car body is in a car state. The airtight state in which the windows are fully closed or the flow state in which the windows are open causes changes in the gas circulation state in the vehicle body. For example, the drunk driving warning system described in item 1 or 4 of the scope of patent application, wherein the preset threshold is any value in the range of alcohol concentration of 0.05 to 0.15 mg/liter.

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