Vehicle drunk driving monitoring system and alcohol detection method

Abstract

The invention provides a vehicle drunk driving monitoring system and an alcohol detection method, and aims to solve the problem that drunk driving supervision in the prior art depends on manual card setting or has no communication capability. The system mainly comprises an alcohol detector, a data storage module, a state judgment module, an anomaly detection module and a result display module, according to the vehicle drunk driving monitoring system and the alcohol detection method provided by the invention, a mobile alcohol detection device with communication capability and vehicle ignition line (ACC) state detection are combined, data reported by equipment are analyzed, whether alcohol detection is carried out before a vehicle starts to travel is judged, and an alcohol detection result is judged; the vehicle positioning data and the alcohol detection result are deeply fused, the detection nodes and the vehicle travel data are visually displayed through a software system, a new scheme is provided for drunk driving supervision, the problems of road limitation, place limitation and time limitation are solved, and the method can play a positive role in guaranteeing road traffic safety.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic safety monitoring, and in particular to a vehicle drunk driving monitoring system and an alcohol detection method. Background Art

[0003] Traditional drunk driving detection means have many limitations:

[0004] On the one hand: relying on fixed checkpoints and manual spot checks, there are coverage blind spots and it is impossible to monitor pre-driving behavior in real time, resulting in a high missed detection rate and lagging law enforcement. Specifically, relying on traffic law enforcement officers to set up checkpoints on site for spot checks not only consumes a large amount of manpower and material resources, but also is limited by factors such as the deployment scope and attendance time of law enforcement officers, making it difficult to achieve comprehensive supervision of all vehicles on the road, and there is a high probability of missed detection of drunk driving behavior.

[0005] On the other hand: although some vehicles have installed mobile alcohol detection devices by themselves, if the device lacks communication functions, the detection results are only retained in the vehicle for the driver to know and cannot provide a basis for external supervision. And even if it has communication capabilities, the existing management mode often simply receives the detection data, and there is no effective supervision on whether the driver conducts the detection on time and truthfully, and it is impossible to fundamentally eliminate the hidden danger of drunk driving. For example, in the Chinese invention patent with the publication number CN113183980, "A vehicle-mounted system for active alcohol detection of vehicle drivers and its detection method" is disclosed, which mainly has two technical limitations: 1. There is no detection mechanism associated with the driving time axis, and the detection results have no relevance to the vehicle itinerary, making it difficult to trace the evidence of violations; 2. It starts the alcohol detection device only after the ACC is turned on. The ACC being turned on usually means that the vehicle has been ignited. If the driver has already drunk alcohol, it constitutes a factual drunk driving.

[0006] Therefore, there is an urgent need for a brand-new drunk driving monitoring solution to fill the existing regulatory gap and improve the level of road traffic safety guarantee. Summary of the Invention

[0007] The present application aims at the above-mentioned disadvantages in the prior art and provides a vehicle drunk driving monitoring system and an alcohol detection method, which combines a mobile alcohol detection device with communication capabilities and the detection of the status of the vehicle ignition wire (ACC). By analyzing the data reported by the device, it is judged whether alcohol detection is carried out before the vehicle starts its journey and the alcohol detection results, and it can identify violations such as not detecting alcohol before driving, drunk driving / drunk driving. Using the software system to detect the alcohol detection situation and results during the vehicle journey, a new means of drunk driving supervision is introduced, solving the problems of road restrictions, location restrictions, and time restrictions, improving work efficiency, and playing an active role in ensuring road traffic safety.

[0008] The technical solution adopted by the present invention is as follows:

[0009] First, a vehicle drunk driving monitoring system is provided, which includes:

[0010] An alcohol detector with communication ability, installed in the vehicle, connected to the vehicle's ACC ignition line through a circuit, and used to regularly upload the vehicle's ACC status and alcohol detection results to the supporting platform at predetermined time intervals. The alcohol detector can detect the alcohol concentration in the vehicle interior air and determine the driver's drinking status according to a preset threshold;

[0011] A supporting monitoring platform, which has:

[0012] A data storage module, used to save all the data reported by the alcohol detector, including an ACC status data that records the changes in the vehicle's ACC status in a time series, and an alcohol detection result data that details the time, detection value, and determination result of each alcohol detection;

[0013] A status judgment module, which determines that the vehicle starts when the vehicle's ACC status changes from off to on, and determines that the vehicle shuts down when the status changes from on to off. Based on the ignition state change of the vehicle, it judges whether the vehicle is currently in a journey and accurately determines the start and end times of the journey;

[0014] An abnormality detection module, which focuses on the three-minute period before and after the vehicle starts. This time can be adjusted as needed. It strictly reviews whether there is an alcohol detection result during this period. If no detection is found, it is determined as an abnormality, that is, "no alcohol detection before driving", and this abnormal information is recorded in the alcohol detection result data;

[0015] A result display module, which combines the vehicle journey information with the corresponding alcohol detection results and comprehensively displays the overall picture of alcohol detection during the vehicle journey in a visual form. On the display interface, with the time axis as the main line, it clearly marks the vehicle's start and shutdown time points, as well as the alcohol detection situations and results at each key time node.

[0016] Furthermore, when the alcohol detector uploads data to the platform, it uses an encrypted transmission method.

[0017] Furthermore, when the status judgment module of the monitoring platform judges the change in the vehicle's ignition state, it has a filtering or fault tolerance mechanism for instantaneous unstable electrical signals to avoid misjudging the vehicle's start or shutdown state due to a short-term abnormality in the vehicle's electrical system.

[0018] Furthermore, when the abnormality detection module of the monitoring platform determines the abnormality of "no alcohol detection before driving", in addition to recording the abnormal information, it can also automatically generate a detailed report containing key elements such as vehicle identification information and the time of abnormality occurrence, which is convenient for subsequent traceability and processing.

[0019] Further, the result display module of the monitoring platform provides a variety of visualization display methods, including line charts, bar charts or tables for users to select according to their needs.

[0020] Secondly, a method for alcohol detection based on a vehicle drunk driving monitoring system is also provided, which includes the following steps:

[0021] Step S1: The platform obtains the latest ACC status data of the vehicle;

[0022] Step S2: If the ACC status data is empty, it indicates that the vehicle has not been powered on and no data has been generated, and it is determined as "no trip";

[0023] Step S3: If the ACC status of the latest data is "off", it means that the vehicle has been turned off, and it is currently determined as "no trip";

[0024] Step S4: If the ACC status of the latest data is "on", it means that the vehicle is in a trip, and the next step is to judge the alcohol detection result during the trip;

[0025] Step S5: Find the time when the latest ACC status in the database is "off", and record the time of the first data after this time as the "start time of the trip";

[0026] Step S6: Take out the alcohol detection results within the time period from 3 minutes before the start time of the trip to 3 minutes after the start time of the trip (start time of the trip ± 3 minutes);

[0027] Step S7: If there is no alcohol detection result within this time period, it is judged as "no alcohol test before driving", and this abnormality is recorded in the alcohol detection results;

[0028] Step S8: The time from 3 minutes before the start time of the trip to the current time is the current trip of the vehicle, and whether an alcohol test is carried out and the test result are embedded at the corresponding time points of the trip.

[0029] The beneficial effects of the present invention compared with the prior art are as follows:

[0030] 1) Precise monitoring: Based on the close combination of the vehicle ACC status and the on-vehicle alcohol detection device, the present invention can accurately display the alcohol detection situation during the vehicle trip. Whether the driver fails to take the test or the test result is abnormal, it can be detected immediately.

[0031] 2) Convenient and efficient: Compared with the conventional drunk driving supervision means, this method is extremely convenient to operate. There is no need for a large number of law enforcement officers to set up checkpoints on the road. Only relying on the equipment installed on the vehicle itself and the data analysis of the background platform can effectively supervise drunk driving behaviors. It greatly saves labor costs, improves the supervision efficiency, and enables the drunk driving monitoring to be normalized and comprehensively covered.

[0032] 3) Breaking through limitations: It completely gets rid of the limitations of venue and personnel, and is no longer restricted to specific roads, times, and locations for drunk driving spot checks. Whether it is a small road in a remote area or a late-night period, as long as the vehicle starts, the system can monitor in real time, greatly expanding the scope of drunk driving supervision and fundamentally enhancing the ability to ensure road traffic safety. Description of the Drawings

[0033] Figure 1 It is a flowchart of the alcohol detection method in the present invention;

[0034] Figure 2 It is an example diagram of pre-trip undetected for the vehicle drunk driving monitoring system based on the present invention;

[0035] Figure 3 It is an example diagram of normal alcohol detection for the detection result during the journey of the vehicle drunk driving monitoring system based on the present invention;

[0036] Figure 4 It is an example diagram of drunk driving for the detection result during the journey of the vehicle drunk driving monitoring system based on the present invention;

[0037] Figure 5 It is an example diagram of drunk driving for the detection result during the journey of the vehicle drunk driving monitoring system based on the present invention. Detailed Embodiment

[0038] The following combines with the drawings to illustrate the detailed embodiment of the present invention.

[0039] As Figures 1 to 5 shown, a vehicle drunk driving monitoring system and an alcohol detection method provided by the present invention include an alcohol detector with communication ability, which is installed in the vehicle and connected to the vehicle ACC ignition line through a circuit, and is used to regularly upload the vehicle ACC status and alcohol detection results to the supporting platform at a predetermined time interval. The alcohol detector can detect the alcohol concentration in the vehicle interior air and determine the driver's drinking status according to a preset threshold;

[0040] A supporting monitoring platform, which has:

[0041] A data storage module, which is used to save all the data reported by the alcohol detector, including an ACC status data that records the change of the vehicle ACC status in a time series, and an alcohol detection result data that details the time, detection value, and determination result of each alcohol detection;

[0042] A status judgment module, which determines that the vehicle starts based on the change of the vehicle ACC status from off to on, determines that the vehicle shuts down based on the change from on to off, and judges whether the vehicle is currently in a journey and accurately determines the start and end times of the journey based on the change of the vehicle ignition status;

[0043] The anomaly detection module focuses on the 3-minute period before and after vehicle startup. This time can be adjusted as needed. It strictly reviews whether there is an alcohol detection result within this period. If no detection is found, it is determined as an anomaly, namely "no alcohol test before driving", and this anomaly information is recorded in the alcohol detection result data.

[0044] The result display module combines the vehicle travel information with the corresponding alcohol detection results and comprehensively displays the overall picture of alcohol detection during the vehicle's journey in a visual form. On the display interface, with the time axis as the main line, it clearly marks the vehicle's startup and shutdown time points, as well as the alcohol detection situations and results at each key time node.

[0045] In an embodiment of the present invention, when the alcohol detector uploads data to the platform, it uses an encrypted transmission method.

[0046] In an embodiment of the present invention, when the status judgment module of the monitoring platform judges the change in the vehicle ignition state, it has a filtering or fault tolerance mechanism for instantaneous unstable electrical signals to avoid misjudging the vehicle startup or shutdown state due to a short-term abnormality in the vehicle electrical system.

[0047] In an embodiment of the present invention, when the anomaly detection module of the monitoring platform determines the "no alcohol test before driving" anomaly, in addition to recording the anomaly information, it can also automatically generate a detailed report containing key elements such as vehicle identification information and the anomaly occurrence time, which is convenient for subsequent traceability and processing.

[0048] In an embodiment of the present invention, the result display module of the monitoring platform provides multiple visual display methods, including line charts, bar charts, or tables for users to choose according to their needs. First, install an alcohol detector with communication capabilities (hereinafter referred to as the device) on the vehicle, power it through the vehicle-mounted power supply, and connect it to the vehicle ACC ignition line. After the vehicle is powered on (usually not yet ignited, ACC status is off), the device starts. The device regularly reports the vehicle ACC status and alcohol detection results to the platform at a set time interval (usually once every 30s). In this way, the platform can obtain the vehicle's key operation information and the driver's alcohol detection dynamics in real time.

[0049] For the hardware configuration of the above monitoring system, the platform specifically allocates storage space to save all the data reported by the device, including a detailed ACC status data record and the corresponding alcohol detection result data record. Through the continuous accumulation and collation of these data, it lays a foundation for subsequent accurate analysis.

[0050] Clarify the judgment rule for the vehicle ignition state (ACC status): Changing from off to on indicates that the vehicle starts and is about to enter the driving stage; changing from on to off indicates that the vehicle shuts down and the driving process ends.

[0051] Based on the change of the vehicle's ignition state, the platform can intelligently judge whether the vehicle is currently in a journey and accurately determine the start / end time of the journey. This judgment process relies on the real-time monitoring and analysis algorithm of the ACC status data.

[0052] The platform focuses on whether alcohol detection is carried out within the key time period of 3 minutes before and after the vehicle starts (this time threshold can be flexibly adjusted according to actual supervision requirements). If no alcohol detection result is found within this time period, the system will automatically regard it as an abnormal situation and determine it as "no alcohol detection before driving", providing a basis for subsequent supervision measures.

[0053] When the platform receives the alcohol monitoring result, it judges whether it is normal monitoring (detection value < 20mg / 100ml), drunk driving (20mg / 100ml ≤ detection value < 80mg / 100ml), or drunk driving (detection value ≥ 80mg / 100ml) according to the detection value.

[0054] Finally, the platform deeply integrates the vehicle journey information with the detection result data, comprehensively displays the alcohol detection results of the vehicle during the entire journey, and provides comprehensive and intuitive information support for drunk driving supervision.

[0055] Specific working principle:

[0056] The platform first obtains the latest ACC status data of the vehicle from the database. This is the starting point of the entire monitoring process. By understanding the latest status, the running trend of the vehicle is initially judged.

[0057] If the obtained ACC status data is empty, it indicates that the vehicle has not been powered on and no driving and detection-related data has been generated. At this time, the system directly determines it as "no journey" and waits for subsequent data updates.

[0058] When the ACC status of the latest data is "off", it indicates that the vehicle has stopped and is in a stationary state. Currently, it is also determined as "no journey", and the platform pauses the analysis process of the alcohol detection results of this vehicle until the next ACC status update.

[0059] Once the ACC status of the latest data shows "on", it means that the vehicle is in a journey. The system then starts the next operation, focusing on judging the alcohol detection results during the journey to ensure effective monitoring of drunk driving behavior during driving.

[0060] The platform deeply searches the database for the time record when the latest ACC status is "off", and accurately records the time of the first data after that time as the "journey start time". The accurate definition of this time node is crucial for subsequent analysis of alcohol detection before and after the vehicle starts.

[0061] Based on the determined trip start time, obtain the alcohol detection results within the time period from 3 minutes before the trip start time to 3 minutes after the trip start time (i.e., trip start time ± 3 minutes). This time period covers the critical period when the driver is most likely to conduct an alcohol test before and after starting the vehicle.

[0062] If the system retrieves and finds that there is no alcohol detection result within this specific time period, according to the preset rules, it is immediately determined as "no alcohol test before driving", and this abnormal situation is detailedly recorded in the alcohol detection results for subsequent traceability and handling.

[0063] Define the time period from 3 minutes before the trip start time to the current time as the current trip of the vehicle. The system cleverly embeds information on whether an alcohol test is conducted and the specific test results at each time point corresponding to the trip, realizing the visual display and precise management of the alcohol detection situation throughout the vehicle trip.

[0064] The above description is an explanation of the present invention, not a limitation of the invention. The scope defined by the present invention is referred to the claims. Within the protection scope of the present invention, any form of modification can be made.

Claims

1. A vehicle drunk driving monitoring system, characterized in that: Including: An alcohol detector with communication capabilities, installed inside a vehicle, connected to the vehicle's ACC ignition line through a circuit, and used to regularly upload the vehicle's ACC status and alcohol detection results to a supporting platform at predetermined time intervals. The alcohol detector can detect the alcohol concentration in the vehicle's air and determine the driver's drinking status according to a preset threshold; A supporting monitoring platform, which has: A data storage module for storing all the data reported by the alcohol detector, including an ACC status data that records the changes in the vehicle's ACC status in a time series, and an alcohol detection result data that details the time, detection value, and determination result of each alcohol detection; A status judgment module that determines the vehicle starts when the ACC status changes from off to on, and determines the vehicle shuts down when the ACC status changes from on to off. Based on the ignition state change of the vehicle, it judges whether the vehicle is currently in a journey and accurately determines the start and end times of the journey; An abnormal detection module that focuses on the three-minute period before and after the vehicle starts, strictly reviews whether there is an alcohol detection result during this period. If no detection is found, it is determined as abnormal, that is, "no alcohol detection before driving", and this abnormal information is recorded in the alcohol detection result data; A result display module that combines the vehicle journey information with the corresponding alcohol detection results and comprehensively displays the overall picture of alcohol detection during the vehicle's journey in a visual form. On the display interface, with the time axis as the main line, the start and stop times of the vehicle are clearly marked, as well as the alcohol detection situations and results at each key time node; 2. The vehicle drunk driving monitoring system according to claim 1, wherein: When the alcohol detector uploads data to the platform, it uses an encrypted transmission method.

3. The vehicle drunk driving monitoring system according to claim 1, characterized in that: When the status judgment module of the monitoring platform judges the change in the vehicle's ignition state, it has a filtering or fault tolerance mechanism for instant unstable electrical signals to avoid misjudging the vehicle's start or shutdown state due to a short-term abnormality in the vehicle's electrical system; 4. The vehicle drunk driving monitoring system according to claim 1, wherein: When the abnormal detection module of the monitoring platform determines the "no alcohol detection before driving" abnormality, in addition to recording the abnormal information, it can also automatically generate a detailed report containing key elements such as vehicle identification information and the time of the abnormality for subsequent traceability and processing; 5. The vehicle drunk driving monitoring system according to claim 1, characterized in that: The result display module of the monitoring platform provides a variety of visual display methods, including line charts, bar charts, or tables for users to choose according to their needs; 6. An alcohol detection method for a vehicle drunk driving monitoring system according to any one of claims 1-5, characterized in that Including the following steps: Step S1: The platform obtains the vehicle's latest ACC status data; Step S2: If the ACC status data is empty, it indicates that the vehicle has not been powered on and no data has been generated, and it is determined as "no journey"; Step S3: If the ACC status of the latest data is "off", it means the vehicle has shut down, and it is currently determined as "no journey"; Step S4: If the ACC status of the latest data is "on", it means the vehicle is in a journey, and the next step is to judge the alcohol detection result during the journey; Step S5: Find the time when the latest ACC status in the database is "off" in the database, and record the time of the first data after this time as the "journey start time"; Step S6: Retrieve the alcohol detection results within the time period from three minutes before the journey start time to three minutes after the journey start time (journey start time ± 3 minutes); Step S7: If there is no alcohol detection result during this time period, it is judged as "alcohol not detected before driving", and this anomaly is recorded in the alcohol detection result. Step S8: The time period from 3 minutes before the start time of the trip to the current time is the current trip of the vehicle, and the alcohol detection result is embedded at the corresponding time point of the trip.

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