CN111323607A - Air blowing type vehicle-mounted drunk driving prevention device and detection method thereof - Google Patents

Abstract

The application discloses on-vehicle wine of preventing of air blowing type drives device comprises detection part and sensing part through the plug electricity connection, detection part is including from top to bottom connecting gradually: the device comprises an indicator light, a main body structure, a base and a sucker for adsorption installation; the sensing part comprises a first mounting mechanism and a second mounting mechanism, wherein the first mounting mechanism is used for mounting on an automobile B column close to a driving seat, and the second mounting mechanism is sleeved with a sensing module on the first mounting mechanism in a sliding manner; the main control board comprises a main control module, a sensing module connected with the main control module through a detection signal generating circuit, and a reset module and an alarm display module which are connected with the main control module. The vehicle-mounted alcohol breath test system is applied to vehicles, can realize vehicle-mounted follow-up detection, can timely detect the concentration of the alcohol breathed out after a driver gets on the vehicle, and avoids illegal drunk driving caused by subjective judgment errors, thereby effectively preventing unnecessary traffic accidents from happening, and avoiding personal injury and property loss.

Description

Air blowing type vehicle-mounted drunk driving prevention device and detection method thereof

Technical Field

The invention relates to the field of vehicle-mounted ornaments, in particular to a vehicle-mounted functional ornament, and specifically relates to an air blowing type vehicle-mounted drunk driving prevention device.

Background

Accident investigations by the world health organization in 2008 have shown that approximately 50% -60% of traffic accidents are associated with drunk driving, which has been classified as a leading cause of death from car accidents. In china, traffic accidents caused by drunk driving are tens of thousands of times per year; more than 50% of the accidents causing death are related to drunk driving, and the harm of drunk driving is striking and has become the first big killer of traffic accidents. With the aggravation of traffic violation punishment, procedures for eliminating illegal behaviors are more and more strict, cases of drunk driving and drunk driving are gradually reduced at present, but the number of cases of drunk driving is still huge, and the following cases are found through sampling investigation of the cases:

firstly, the driver is awake after no drunkenness or drinking for a few hours, but is still informed of drunk driving by a traffic police to be checked; secondly, because a large amount of wine is drunk at one time, the people feel yesterday after a rest for one night, the driving today has no problem, but the driving still belongs to drunk driving through detection; thirdly, the drunk driving illegal behavior is known to exist, but the drunk driving illegal behavior is not felt to meet traffic police inspection, and the drunk driving illegal behavior is caught by leaving the car in a lucky psychology.

In the three cases, it can be seen that the first and second behaviors are more than half of the behaviors in which the driver is drunk or not drunk in the sampling case, but the subjective feeling and the objective detection are inconsistent. Because the driver does not carry the alcohol detector with him or her or carries the alcohol detector with him or her, and the special alcohol detector has higher market price and low use frequency, so that the ordinary vehicle owner can not be equipped with the alcohol detector with him or her, after drinking the wine, the driver can rest for a period of time to the end, whether the drunk driving behavior is in mind or not, and the driver can face illegal drunk driving on the road blindly; according to the requirement that the vehicle can be driven after having a rest for at least 24 hours after drinking according to the national regulation, the current fast-paced life is too delayed, so that in view of the practical contradiction, a vehicle-mounted low-cost alcohol detection device is required to detect the concentration of the alcohol exhaled, and the problem of drunk driving is very necessary to be effectively prevented.

Disclosure of Invention

In order to prevent that current driver does not have on-vehicle alcohol detection instrument, whether there is wine to drive inaccurate and the wine drives through subjective judgement and appear, lead to a series of traffic accident's problem, this application provides a device is driven to on-vehicle wine of preventing of air-blowing type. Can be direct, effectual, quick detect driver's exhalation gaseous alcohol content for whether the driver can normally drive the vehicle, whether can lead to illegal wine to drive makes scientific judgement, thereby can avoid unnecessary punishment and traffic accident's emergence.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the utility model provides a device is driven to on-vehicle wine of preventing of air blowing formula, comprises testing section and sensing part through the plug electricity is connected, the testing section is including from top to bottom connecting gradually:

the device comprises an indicator light, a main body structure, a base and a sucker for adsorption installation; the main body structure comprises a first shell and a second shell which are mutually buckled and fixed with the main control board, and the main control board is respectively connected with a battery arranged in the main body structure and a display screen embedded in the first shell; the sensing part comprises a first mounting mechanism and a second mounting mechanism, wherein the first mounting mechanism is used for mounting on an automobile B column close to a driving seat, and the second mounting mechanism is sleeved on the first mounting mechanism in a sliding manner and is used for fixedly mounting a sensing module for detecting the alcohol concentration;

the main control board comprises a main control module, a sensing module connected with the main control module through a detection signal generating circuit, and a reset module and an alarm display module which are connected with the main control module.

The working principle is as follows: in the aspect of physical structure, the vehicle-mounted drunk driving prevention device provided by the invention can be suitable for mounting all current automobiles. During installation, the sucking disc is adsorbed on the smooth surface in the automobile, so that the fixing can be realized, the front windshield glass can be selected at the common installation position, and the center console and the like can be arranged at the positions avoiding the front safety airbag. All circuit main control boards are arranged on a main body structure, when the vehicle-mounted drunk driving prevention device works after being electrified, a driver can know whether drunk driving exists or not through the alarm display module only by exhaling towards the sensing module, in order to improve safety and avoid the concentration of exhaled gas diluted by air, the driver needs to exhale in a short distance or install a closed pipeline to aim at the sensing module to exhale, so that the alcohol concentration of the exhaled gas can be more accurately measured, the method belongs to the prior art in the field of alcohol detection, and in order to eliminate detection errors and improve detection safety, the alarm value can be further reduced on the basis of the threshold value in a GB19522-2004 file, so that the actual alarm value can be lower than the national drunk driving threshold value, and the vehicle-mounted drunk driving prevention device has a better prevention effect on drunk driving prevention. The working principle of the main control board is different from that of the prior art, specifically, the gas containing alcohol is detected through the sensing module, the sensing module converts the collected analog electric signals into digital signals and then sends the digital signals to the main control module, the detected gas alcohol concentration content is displayed through the alarm display module through a preset conversion modulation program, whether drunk driving exists for a driver is scientifically judged, whether the driver can safely drive on the road is warned, if drunk driving occurs, the rest time can be properly prolonged or other modes are selected for going out, therefore, the starting or unnecessary traffic accidents caused by blind drunk driving are effectively avoided, the time can be effectively utilized, the time is not delayed due to blind waiting, scientific selection can be achieved, and the going out is reasonably arranged.

As a preferred technical scheme, the structure is further optimized and improved on the basis of the structure, and a first mounting mechanism in the detection part comprises a first half clamp and a second half clamp which are mutually inserted to form a U-shaped clamp with an adjustable range for clamping the B column of the automobile; the first half pincers and the second half pincers are close to the mutual inserting position and are fixedly provided with inserting pieces formed by downward extension, and the inner side faces of the free ends of the first half pincers and the second half pincers are fixedly provided with anti-skidding lines. The second half pincers are integrally connected with a tenon, and the first half pincers are provided with a mortise for accommodating the tenon; or the first half pincers are integrally connected with a tenon, and the second half pincers are provided with a mortise for accommodating the tenon.

Preferably, the second mounting mechanism comprises two sliding sleeves which are respectively sleeved on the first half pincers and the second half pincers in a sliding manner, and a mounting plate for fixing the two sliding sleeves, wherein a detector for circulating detected gas is fixedly mounted on the mounting plate, and the sensing module is mounted in the detector; still be provided with air inlet and gas outlet on the detector respectively to and the bellows of intercommunication air inlet, be provided with on the mounting panel and be used for the joint fixed the checkpost of bellows free end. Installation and fixed principle: when the automobile B-pillar locking device is installed, the inserting piece is firstly inserted into a decorative plate gap above the automobile B-pillar from top to bottom, one side of the automobile B-pillar, which is close to a driver, is closed by the first half clamp and the second half clamp, the locking device arranged on the sliding sleeve is locked, and the first half clamp and the second half clamp are prevented from loosening. And (4) conducting wire bundles of the sensing module are hidden and wired in the automotive trim edge seams, and then the connector is communicated with the main control board. When the anti-drunk driving device is used, a driver only needs to hold the corrugated pipe and blow air inwards rapidly to realize detection, and if the content of the blown alcohol exceeds a preset threshold value, an alarm is given out to achieve the effect of preventing drunk driving. The principle of alcohol content detection is the same as that of the existing gas sensor, and it is a simple and mature technology for those skilled in the art, and is not described herein.

As a preferred implementation scheme, a first connecting boss is fixedly connected to the lower portion of the first shell, a second connecting boss is fixedly connected to the upper portion of the base, and the first connecting boss and the second connecting boss are connected through a spring. As is well known, when an automobile runs, jolts exist in different degrees, and different jolts degrees of damping conditions can be different due to the running speed of the automobile, in order to expand the installation compatibility of the anti-drunkenness device, all automobile types can be considered by adopting a sucker mode for installation, but the sucker has poor damping effect, the anti-drunkenness device on the automobile is easy to topple or fall under a large-amplitude jolt or high-frequency vibration environment, the inertial stress caused by jolt or vibration can be offset by connecting the base and the main structure through the spring, and therefore the installation stability of the anti-drunkenness device on the automobile is improved.

As preferred implementation scheme, sucking disc upper end an organic whole is provided with the convex part, the base has two landing legs that the symmetry set up, and the terminal surface sets up under the landing leg and is used for the joint to hold the blind hole of convex part. Because the sucking disc utilizes the pressure difference to realize stable absorption, in hot summer, the inside temperature of car is higher, the inside temperature of car that is in long-time insolation can be up to more than 60 ℃, it is very serious to the oxidation of sucking disc, consequently, long-time the use, the sucking disc can constantly reduce absorbent effect along with going on of oxidation degree, so set to dismantling between sucking disc and the base and be connected with the change that does benefit to the sucking disc, and need not to abandon whole on-vehicle wine proof device, effectual increase of service life, use cost is saved.

As a preferred implementation scheme, the second housing is provided with two sockets for connecting the sensor, a first power socket, a second power socket, a power key for controlling the power on/off of the main control board, and a reset key for enabling the main control board to return to an initial state. The vehicle-mounted drunk driving prevention device is particularly provided with two power sockets in parallel, namely the first power socket and the second power socket, and the battery can be charged after the voltage is reduced through a data line of the mainstream in the existing market through the vehicle-mounted cigarette lighter power supply, so that the practicability and the convenience of vehicle-mounted drunk driving prevention device are greatly improved.

Further, as a preferred implementation scheme, the sensing module is composed of an MQ-3 alcohol sensor and an analog-to-digital converter, the controller adopted by the main control module is controlled by a PDIP-40/STC89C52 chip, and the alarm display module is composed of an LED light source lamp bead and an LCD1602 type character liquid crystal display module. The most main advantages of the existing chip and the existing accessories are easy hardware purchase, good stability and low power consumption, so that the cost is far lower than that of the existing hand-held alcohol detector, and favorable conditions are created for carrying on a vehicle.

The drunk driving prevention detection method is realized by adopting the blowing type vehicle-mounted drunk driving prevention device to perform blowing detection before driving.

Has the advantages that:

1. the vehicle-mounted alcohol breath test system is applied to vehicles, can realize vehicle-mounted follow-up detection, can timely detect the concentration of the alcohol breathed out after a driver gets on the vehicle, and avoids illegal drunk driving caused by subjective judgment errors, thereby effectively preventing unnecessary traffic accidents from happening, and avoiding personal injury and property loss.

2. The invention has the advantages of low cost of components, good stability, long service life, suitability for various cart types and good compatibility, and can be charged by utilizing a vehicle-mounted 12V power supply.

3. The invention adopts the installation of the sensing module and the main control board in a separated mode, can realize the installation of wiring in a hidden mode, and can meet the requirement of convenient installation of blowing for drivers in different vehicle types.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is an exploded view of the structure of the present invention;

FIG. 2 is an exploded view of the structure of FIG. 1 from another perspective;

FIG. 3 is a rear view of the present invention in an assembled state;

FIG. 4 is a view of the mounting mechanism of the external alcohol sensor;

FIG. 5 is a view of the structure of FIG. 4 from another perspective;

FIG. 6 is a circuit schematic of a master control module;

FIG. 7 is a circuit schematic of an alarm display module;

FIG. 8 is a schematic diagram of a power circuit and a signal modulation circuit;

fig. 9 is a block diagram of a master control board structure.

In the figure: 1-an indicator light; 2-main body structure; 21-a display screen; 22-a first connection boss; 23-a first housing; 24-a battery; 25-a main control board; 26-a second housing; 3-a base; 31-a second connecting boss; 32-a spring; 33-blind holes; 4-a sucker; 41-a convex part;

5-a first mounting mechanism; 51-first half-plier; 52-second half of the pliers; 53-non-slip pattern; 54-an insert sheet; 55-tenon; 56-tongue and groove; 6-a second mounting mechanism; 61-a sliding sleeve; 62-a locker; 63-mounting a plate; 7-a detector; 71-an air inlet; 72-the air outlet; 73-bellows; 201-power key; 202-reset key; 203-a socket; 204-a first power outlet; 205-second power outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the blowing type vehicle-mounted drunk driving prevention device shown in the attached drawings 1-5 in the specification is composed of a detection part and a sensing part which are electrically connected in a plugging and unplugging mode, wherein the detection part comprises a first detection part and a second detection part which are sequentially connected from top to bottom:

the device comprises anindicator light 1, amain body structure 2, abase 3 and asucker 4 for adsorption installation; themain body structure 2 comprises afirst shell 23 and asecond shell 26 which are mutually buckled and fixed with amain control board 25, and themain control board 25 is respectively connected with abattery 24 arranged in themain body structure 2 and adisplay screen 21 embedded on thefirst shell 23; the sensing part comprises afirst mounting mechanism 5 and asecond mounting mechanism 6, wherein thefirst mounting mechanism 5 is used for being mounted on a B column of an automobile close to a driving seat, and thesecond mounting mechanism 6 is sleeved on thefirst mounting mechanism 5 in a sliding mode and used for fixedly mounting a sensing module for detecting the alcohol concentration;

themain control board 25 includes a main control module, a sensing module connected to the main control module through a detection signal generating circuit, and a reset module and an alarm display module connected to the main control module.

The working principle is as follows: in the aspect of physical structure, the vehicle-mounted drunk driving prevention device provided by the invention can be suitable for mounting all current automobiles. During installation, the sucking disc is adsorbed on the smooth surface in the automobile, so that the fixing can be realized, the front windshield glass can be selected at the common installation position, and the center console and the like can be arranged at the positions avoiding the front safety airbag. All circuit main control boards are arranged on a main body structure, when the vehicle-mounted drunk driving prevention device works after being electrified, a driver can know whether drunk driving exists or not through the alarm display module only by exhaling towards the sensing module, in order to improve safety and avoid the concentration of exhaled gas diluted by air, the driver needs to exhale in a short distance or install a closed pipeline to aim at the sensing module to exhale, so that the alcohol concentration of the exhaled gas can be more accurately measured, the method belongs to the prior art in the field of alcohol detection, and in order to eliminate detection errors and improve detection safety, the alarm value can be further reduced on the basis of the threshold value in a GB19522-2004 file, so that the actual alarm value can be lower than the national drunk driving threshold value, and the vehicle-mounted drunk driving prevention device has a better prevention effect on drunk driving prevention. The working principle of the main control board is different from that of the prior art, specifically, the gas containing alcohol is detected through the sensing module, the sensing module converts the collected analog electric signals into digital signals and then sends the digital signals to the main control module, the detected gas alcohol concentration content is displayed through the alarm display module through a preset conversion modulation program, whether drunk driving exists for a driver is scientifically judged, whether the driver can safely drive on the road is warned, if drunk driving occurs, the rest time can be properly prolonged or other modes are selected for going out, therefore, the starting or unnecessary traffic accidents caused by blind drunk driving are effectively avoided, the time can be effectively utilized, the time is not delayed due to blind waiting, scientific selection can be achieved, and the going out is reasonably arranged.

As a preferable technical scheme, a further optimization and improvement is made on the basis of the structure, wherein thefirst mounting mechanism 5 in the detection part comprises afirst half clamp 51 and asecond half clamp 52 which are mutually inserted to form a U-shaped clamp with an adjustable range for clamping the B column of the automobile; thefirst half pincers 51 and thesecond half pincers 52 are fixedly provided with insertingpieces 54 which extend downwards and are close to the mutual inserting positions, and the inner side faces of the free ends of thefirst half pincers 51 and thesecond half pincers 52 are fixedly provided withanti-skidding threads 53. Thesecond half tong 52 is integrally connected with atenon 55, and thefirst half tong 51 is provided with amortise 56 for accommodating thetenon 55; or the first half-clamp 51 is integrally connected with atenon 55, and the second half-clamp 52 is provided with amortise 56 for accommodating thetenon 55.

Preferably, thesecond mounting mechanism 6 includes two slidingsleeves 61 respectively slidably sleeved on the firsthalf vice 51 and the secondhalf vice 52, and a mountingplate 63 for fixing the two slidingsleeves 61, adetector 7 for flowing detected gas is fixedly mounted on the mountingplate 63, and the sensing module is mounted in thedetector 7; thedetector 7 is further provided with anair inlet 71, anair outlet 72 and acorrugated pipe 73 communicated with theair inlet 71, and the mountingplate 63 is provided with a clamp for clamping and fixing a free end of thecorrugated pipe 73. Installation and fixed principle: during installation, the insertingsheet 54 is firstly inserted into a decorative plate gap on the side, close to a driver, of the automobile B column, close to the upper side of the automobile B column from top to bottom, then thefirst half clamp 51 and thesecond half clamp 52 are folded, and thelocker 62 arranged on the slidingsleeve 61 is locked, so that thefirst half clamp 51 and thesecond half clamp 52 are prevented from being loosened. And (3) conducting wires of the sensing module are bundled in the automotive trim edge seams for hidden wiring, and then the connector is communicated with themain control board 25. When the alcohol content detection device is used, a driver only needs to hold thecorrugated pipe 73 and quickly blow air inwards to realize detection, and if the content of the blown alcohol exceeds a preset threshold value, an alarm is given out to achieve the effect of preventing drunk driving. The principle of alcohol content detection is the same as that of the existing gas sensor, and it is a simple and mature technology for those skilled in the art, and is not described herein.

Example 2:

on the basis of the structure and principle ofembodiment 1, as further shown in fig. 1 and 2, a first connectingboss 22 is fixedly connected to the lower portion of thefirst housing 23, a second connectingboss 31 is fixedly connected to the upper portion of thebase 3, and the first connectingboss 22 and the second connectingboss 31 are connected through aspring 32. As is well known, when an automobile runs, jolts exist in different degrees, and different jolts degrees of damping conditions can be different due to the running speed of the automobile, in order to expand the installation compatibility of the anti-drunkenness device, all automobile types can be considered by adopting a sucker mode, but the damping effect of thesucker 4 is not good, the anti-drunkenness device on the automobile is easy to topple or fall under a large-amplitude jolt or high-frequency vibration environment, the inertial stress caused by jolt or vibration can be offset by connecting thebase 3 and themain body structure 2 through a spring, and therefore the installation stability of the anti-drunkenness device on the automobile is improved.

In this embodiment, the upper end of thesuction cup 4 is integrally provided with aconvex portion 41, thebase 3 is provided with two symmetrically arranged support legs, and the lower end surfaces of the support legs are provided withblind holes 33 for clamping and accommodating theconvex portions 41. Because suckingdisc 4 utilizes the pressure difference to realize stable absorption, in hot summer, the inside temperature of car is higher, the inside temperature of car that is in long-time insolate can be up to more than 60 ℃, it is very serious to suckingdisc 4's oxidation, consequently, long-time the use, suckingdisc 4 can constantly reduce absorbent effect along with going on of oxidation degree, so set to dismantling between suckingdisc 4 and thebase 3 and be connected the change that is favorable to suckingdisc 4, and need not to abandon whole on-vehicle wine proof and drive the device, effectual increase of service life, use cost is saved.

Example 3:

as shown in fig. 6 to 9 in the description, on the basis ofembodiment 2, thesecond housing 26 is provided with twosockets 203 for connecting sensors, afirst power socket 204 and asecond power socket 205, apower key 201 for controlling the power on/off of themain control board 25, and areset key 202 for returning themain control board 25 to the initial state. In particular, the vehicle-mounted drunk driving prevention device is provided with two power sockets in parallel, namely thefirst power socket 204 and thesecond power socket 205, and thebattery 24 can be charged after being subjected to voltage reduction through a data line of the mainstream in the existing market through a vehicle-mounted cigarette lighter power supply, so that the practicability and the convenience of vehicle-mounted drunk driving prevention device are greatly improved. The sensing module is composed of an MQ-3 alcohol sensor and an analog-to-digital converter, the controller adopted by the main control module is controlled by a PDIP-40/STC89C52 chip, and the alarm display module is composed of an LED light source lamp bead and an LCD1602 type character liquid crystal display module.

The working principle is as follows: when thepower key 201 is pressed to electrify thebattery 24 and themain control board 24, the MQ-3 alcohol sensor collects the alcohol concentration of air in the vehicle, converts the alcohol concentration into a digital signal through an analog-digital converter and sends the digital signal to the controller, the controller modulates the digital signal and displays the result through thedisplay screen 21, and meanwhile, theindicator lamp 1 is logically lightened according to the comparison between the detected concentration and the preset concentration so as to achieve the effect of prompting and alarming. The circuit principle of alcohol inspection is very simple, though the design of the product of selling exists differently, but the detection principle has long been belonged to prior art, realizes that the alcohol concentration detects and includes but not limited to the component realization that this embodiment provided, but adopts the design of this embodiment to accomplish product integration, and is miniaturized, and is automatic, and the on-vehicle environment of adaptation that can be better is examined along with the car for the driver is the prejudgement voluntarily and is provided good condition, drives to preventing that subjective erroneous judgement from leading to illegal wine and has positive effect.Socket 203 is the use of external sensor for other local hidden installation alcohol sensor of being convenient for detect in the realization car, can avoid leading to preventing that the position of drunk driving device installation is not convenient for closely exhale the inconvenience that causes because of the motorcycle type is different like this. The most main advantages of the existing chip and the existing accessories are easy hardware purchase, good stability and low power consumption, so that the cost is far lower than that of the existing hand-held alcohol detector, and favorable conditions are created for carrying on a vehicle.

Example 4:

the drunk driving prevention detection method is realized by adopting the blowing type vehicle-mounted drunk driving prevention device in any embodiment to perform blowing detection before driving.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (9)

1. The utility model provides a device is driven to on-vehicle wine of preventing of air blowing formula, comprises detection part and sensing part through plug electric connection, its characterized in that: the detection part comprises a detection part and a detection part, wherein the detection part is connected in sequence from top to bottom:

the device comprises an indicator light (1), a main body structure (2), a base (3) and a sucker (4) for adsorption installation; the main structure (2) comprises a first shell (23) and a second shell (26) which are mutually buckled and fixed with a main control board (25), and the main control board (25) is respectively connected with a battery (24) arranged in the main structure (2) and a display screen (21) embedded in the first shell (23);

the sensing part comprises a first mounting mechanism (5) and a second mounting mechanism (6), wherein the first mounting mechanism (5) is used for being mounted on a B column of an automobile close to a driving seat, and the second mounting mechanism (6) is sleeved on the first mounting mechanism (5) in a sliding mode and is used for fixedly mounting a sensing module for detecting the alcohol concentration;

the main control board (25) comprises a main control module, a sensing module connected with the main control module through a detection signal generating circuit, and a reset module and an alarm display module which are connected with the main control module.

2. The vehicle-mounted blowing type drunk driving preventing device of claim 1, wherein: the first mounting mechanism (5) comprises a first half clamp (51) and a second half clamp (52) which are mutually inserted to form a U-shaped clamp with an adjustable range for clamping the B column of the automobile; the first half pincers (51) and the second half pincers (52) are further fixedly provided with inserting pieces (54) which extend downwards and form close to the mutual inserting positions, and the inner side faces of the free ends of the first half pincers (51) and the second half pincers (52) are fixedly provided with anti-skidding threads (53).

3. The vehicle-mounted blowing type drunk driving preventing device as claimed in claim 2, wherein: the second half tong (52) is integrally connected with a tenon (55), and the first half tong (51) is provided with a mortise (56) for accommodating the tenon (55); or the first half pincers (51) are integrally connected with a tenon (55), and the second half pincers (52) are provided with a mortise (56) for accommodating the tenon (55).

4. The vehicle-mounted blowing type drunk driving preventing device as claimed in claim 2, wherein: the second mounting mechanism (6) comprises two sliding sleeves (61) which are respectively sleeved on the first half clamp (51) and the second half clamp (52) in a sliding manner, and a mounting plate (63) for fixing the two sliding sleeves (61), a detector (7) for circulating detected gas is fixedly mounted on the mounting plate (63), and the sensing module is mounted in the detector (7);

the detector (7) is further provided with an air inlet (71), an air outlet (72) and a corrugated pipe (73) communicated with the air inlet (71), and the mounting plate (63) is provided with a clamp used for clamping and fixing the free end of the corrugated pipe (73).

5. The inflatable vehicle-mounted drunk driving prevention device according to claim 4, wherein: first casing (23) lower part fixedly connected with first connection boss (22), the top fixedly connected with second connection boss (31) of base (3), connect through spring (32) between first connection boss (22) and the second connection boss (31).

6. The inflatable vehicle-mounted drunk driving prevention device according to claim 5, wherein: sucking disc (4) upper end an organic whole is provided with convex part (41), base (3) have two landing legs that the symmetry set up, and the terminal surface sets up under the landing leg and is used for the joint to hold blind hole (33) of convex part (41).

7. The inflatable vehicle-mounted drunk driving prevention device as claimed in claim 6, wherein: two sockets (203) used for connecting the sensors, a first power socket (204), a second power socket (205), a power key (201) used for controlling the power on-off of the main control board (25) and a reset key (202) used for enabling the main control board (25) to return to an initial state are arranged on the second shell (26).

8. The inflatable vehicle-mounted drunk driving prevention device according to claim 7, characterized in that: the sensing module is composed of an MQ-3 alcohol sensor and an analog-to-digital converter, the controller adopted by the main control module is controlled by a PDIP-40/STC89C52 chip, and the alarm display module is composed of an LED light source lamp bead and an LCD1602 type character liquid crystal display module.

9. A drunk driving prevention detection method is characterized by comprising the following steps: the blowing type vehicle-mounted drunk driving prevention device of claim 8 is adopted for blowing detection before driving.

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