Alcohol lock control methods, devices, equipment, storage media, and computer program products

Abstract

This application relates to the field of vehicle alcohol lock technology, and discloses an alcohol lock control method, device, equipment, storage medium, and computer program product, including: after receiving a vehicle preparation command and a door opening signal, measuring the temperature of the electrolyte in a gas sensor based on a first temperature sensor; heating the electrolyte through a heating element according to the measurement result of the first temperature sensor; guiding gas into the gas sensor through an intake pipe to detect a first alcohol concentration in the gas; and preventing vehicle start-up when the first alcohol concentration exceeds a preset concentration threshold. By setting and determining the time when the alcohol lock will be used, the electrolyte in the alcohol sensor is heated in advance to operate at the optimal temperature, improving the accuracy of the device's detection.

Description

Technical Field

[0001] This application relates to the field of vehicle alcohol lock technology, and in particular to an alcohol lock control method, device, equipment, storage medium and computer program product. Background Technology

[0002] More than 50% of the sensors used in existing vehicle alcohol lock devices are electrochemical gas sensors, which test the alcohol concentration in the driver's breath. However, electrochemical sensors have a relatively narrow temperature range, and when working in low-temperature environments, the coolant activity is insufficient, resulting in low accuracy in alcohol measurement. Summary of the Invention

[0003] The main objective of this application is to provide an alcohol lock control method, device, equipment, storage medium, and computer program product, aiming to solve the technical problem that more than 50% of the sensors used in existing vehicle alcohol lock devices are electrochemical gas sensors, which test the alcohol concentration of the driver's exhaled breath. However, the temperature range of electrochemical sensors is relatively narrow, and the coolant activity is insufficient when working in low-temperature environments, resulting in low accuracy of alcohol measurement.

[0004] To achieve the above objectives, this application proposes an alcohol lock control method, the alcohol lock control method comprising:

[0005] After receiving the vehicle preparation command and door opening signal, the temperature of the electrolyte in the gas sensor is measured based on the first temperature sensor.

[0006] Based on the measurement results of the first temperature sensor, the electrolyte is heated by a heating element;

[0007] Gas is guided into the gas sensor through the air intake pipe to detect the first alcohol concentration of the gas;

[0008] When the first alcohol concentration exceeds a preset concentration threshold, the vehicle is prohibited from starting.

[0009] Optionally, the heating element is disposed inside the gas sensor;

[0010] The step of heating the electrolyte using a heating element based on the measurement result of the first temperature sensor includes:

[0011] When the temperature of the electrolyte is lower than the preset operating temperature, the temperature of the housing in the gas sensor is measured using a second temperature sensor;

[0012] The heating power of the heating element is determined based on the temperature of the outer casing and the temperature of the electrolyte, and the electrolyte is heated based on the heating power.

[0013] When the temperature of the electrolyte reaches the preset operating temperature, the heating element is adjusted to the heat preservation mode.

[0014] Optionally, after the step of guiding gas into the gas sensor through the intake pipe and detecting the first alcohol concentration of the gas, the method further includes:

[0015] When the alcohol concentration is less than a preset concentration threshold, the vehicle is allowed to start, and historical usage data of the vehicle is collected.

[0016] The vehicle's usage time is predicted based on the historical usage data, and random detection time points and heating time are determined based on the usage time.

[0017] The preset heating time point is calculated based on the random detection time point and the heating time, and the heating element is activated when the current time is the preset heating time point.

[0018] Optionally, after the step of calculating a preset heating time point based on the random detection time point and the heating time, and activating the heating element when the current time is the preset heating time point, the method further includes:

[0019] The alcohol concentration of the received gas is measured at a random detection time point.

[0020] The electrolyte temperature in the gas sensor of the vehicle is obtained at a random detection time point;

[0021] The electrolyte temperature is compared with the preset operating temperature, and the heating time is adjusted according to the comparison result.

[0022] Optionally, before the step of measuring the temperature of the electrolyte in the gas sensor based on the first temperature sensor after receiving the vehicle preparation command and door opening signal, the method further includes:

[0023] Receive the user's pre-set estimated departure time;

[0024] The heating element is activated in advance based on the estimated departure time, and a notification is sent to the user through the bound device.

[0025] Optionally, after the step of preventing the vehicle from starting when the first alcohol concentration exceeds a preset concentration threshold, the method further includes:

[0026] Upon receiving a retest signal triggered by the user, the second alcohol concentration of the currently received gas is measured based on the gas sensor;

[0027] When the second alcohol concentration is less than a preset concentration threshold, the vehicle start restriction is unlocked.

[0028] Furthermore, to achieve the above objectives, this application also proposes an alcohol lock control device, which includes:

[0029] The temperature measurement module is used to measure the temperature of the electrolyte in the gas sensor based on the first temperature sensor after receiving the vehicle preparation command and door opening signal.

[0030] A temperature heating module is used to heat the electrolyte by means of a heating element based on the measurement result of the first temperature sensor, wherein the heating element is disposed inside the gas sensor;

[0031] An alcohol measurement module is used to guide gas into the gas sensor through an intake pipe and detect the alcohol concentration of the gas.

[0032] The vehicle control module is used to prevent the vehicle from starting when the alcohol concentration exceeds a preset concentration threshold.

[0033] In addition, to achieve the above objectives, this application also proposes an alcohol lock control device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the alcohol lock control method as described above.

[0034] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and which, when executed by a processor, implements the steps of the alcohol lock control method described above.

[0035] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the alcohol lock control method described above.

[0036] This application discloses a method for detecting the temperature of an electrolyte in a gas sensor based on a first temperature sensor after receiving a vehicle preparation command and a door opening signal. The method involves heating the electrolyte using a heating element based on the measurement result from the first temperature sensor, guiding gas into the gas sensor through an intake pipe, and detecting a first alcohol concentration in the gas. If the first alcohol concentration exceeds a preset concentration threshold, vehicle start-up is prohibited. By setting and determining the time when the alcohol lock will be used, the electrolyte in the alcohol sensor is preheated to operate at its optimal temperature, improving the accuracy of the device's detection. Attached Figure Description

[0037] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1 This is a flowchart illustrating the first embodiment of the alcohol lock control method of this application;

[0040] Figure 2 This is a graph showing the relationship between temperature and response value fluctuation ratio in this application;

[0041] Figure 3 This is a graph showing the relationship between temperature and sensor response values ​​in this application;

[0042] Figure 4 This is a schematic diagram of the gas sensor structure of this application;

[0043] Figure 5 This is a flowchart illustrating the second embodiment of the alcohol lock control method of this application;

[0044] Figure 6 This is a flowchart illustrating the working process of the alcohol lock device in this application;

[0045] Figure 7 This is a flowchart illustrating the third embodiment of the alcohol lock control method of this application;

[0046] Figure 8 This is a schematic diagram of the alcohol-based vehicle locking device of this application;

[0047] Figure 9 This is a schematic diagram of the module structure of the alcohol lock control device according to an embodiment of this application;

[0048] Figure 10 This is a schematic diagram of the hardware operating environment involved in the alcohol lock control method in this application embodiment.

[0049] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0051] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0052] The main solution of this application embodiment is as follows: after receiving the vehicle preparation command and door opening signal, the temperature of the electrolyte in the gas sensor is measured based on the first temperature sensor; according to the measurement result of the first temperature sensor, the electrolyte is heated by a heating element; gas is guided into the gas sensor through the air intake pipe to detect the first alcohol concentration of the gas; when the first alcohol concentration exceeds a preset concentration threshold, the vehicle is prohibited from starting.

[0053] Alcohol-activated vehicle interlock devices arose from the need to address both frequent accidents and regulatory limitations. By detecting whether a driver has consumed alcohol, they determine whether authorization to start the vehicle is granted, thus technically preventing drunk driving. Alcohol-activated devices are already installed in vehicles both domestically and internationally. Over 50% of the sensors used in these devices are electrochemical gas sensors, which measure the alcohol concentration in the driver's breath. However, electrochemical sensors have a relatively narrow temperature range, typically -20°C to 55°C. On one hand, electrochemical gas sensors cannot operate for extended periods in high-temperature environments. This is primarily because they contain acidic or alkaline liquids, which evaporate or rapidly increase in moisture at high temperatures, leading to electrolyte loss or leakage. The end result is a longer response time, a longer homing time, lower sensitivity, or even no response. On the other hand, in low-temperature environments, insufficient coolant activity can also reduce the measurement accuracy of electrochemical gas sensors.

[0054] This application provides an alcohol lock control method that, by setting and determining the time when the alcohol lock will be used, heats the electrolyte in the alcohol sensor in advance to ensure it operates at the optimal temperature, thereby improving the accuracy of the device's detection.

[0055] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device capable of performing the above functions. The following description uses a vehicle control system as an example to illustrate this embodiment and the subsequent embodiments.

[0056] Based on this, the embodiments of this application provide an alcohol lock control method, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the alcohol lock control method of this application.

[0057] In this embodiment, the alcohol lock control method includes:

[0058] Step S10: After receiving the vehicle preparation command and door opening signal, measure the temperature of the electrolyte in the gas sensor based on the first temperature sensor.

[0059] It should be noted that the vehicle preparation command refers to the command to start the vehicle and prepare it for operation. It involves a series of checks and initialization processes to ensure that the vehicle is in a safe and operational state. The door opening signal is a signal that allows the door to be opened, ensuring that the door can only be opened when the vehicle is stationary and the door enable signal is valid.

[0060] Understandably, when a vehicle receives a standby command, it indicates that the vehicle is about to start and is ready to operate. Simultaneously, it receives a door opening signal, ensuring that the door opening operation can be performed only when the vehicle is stationary and the door enable signal is valid. Upon receiving the standby command, the first temperature sensor is activated, acquiring real-time electrolyte temperature data by contacting the electrolyte or measuring the temperature around the electrolyte. The measured temperature data is transmitted to the vehicle's control system or data processing unit. The control system processes and analyzes the temperature data to determine whether the electrolyte temperature is within the normal range.

[0061] Step S20: Based on the measurement result of the first temperature sensor, the electrolyte is heated by a heating element.

[0062] Understandably, the detection accuracy of alcohol concentration in gas sensors varies with temperature. Electrochemical gas sensors contain acidic or alkaline liquids, and in high-temperature environments, moisture evaporates or rapidly increases, leading to electrolyte loss or leakage. This results in longer response times, longer homing times, lower sensitivity, or even no response. Furthermore, insufficient coolant activity in low-temperature environments also reduces measurement accuracy. Therefore, proper temperature control is necessary to ensure the sensor operates at an appropriate temperature, improving the response time and accuracy of alcohol lock detection.

[0063] In one example, reference Figure 2 , Figure 2This diagram illustrates the relationship between temperature and response value fluctuation in this application. On an alcohol testing platform, the sensor output value for a 0.5 mg / L alcohol concentration was tested after placing the device for 2 hours at temperatures of -20℃±2℃, -10℃+2℃, 0℃±2℃, 10℃±2℃, 20℃±2℃, 30℃±2℃, 40℃±2℃, and 50℃±2℃. A and B represent two different types of gas sensors. The average values ​​of A and B represent the average performance of the electrochemical gas sensor's response value at different temperatures. As the temperature decreases, the sensor's response value also decreases. At 0℃ or below, the sensor's response value may drop to less than 50% of its normal temperature value, leading to significant testing errors. When the temperature rises above 20℃, the sensor's response value tends to stabilize, and the fluctuation decreases, indicating that the sensor's performance is more reliable within this temperature range. To improve the driver's experience with the alcohol interlock device, it is necessary to quickly heat the sensor to ensure it operates at a suitable temperature. Based on the above experimental data, the suitable operating temperature can be set to 25℃. At this temperature, the sensor's response value is 100%, which is ideal.

[0064] It should be understood that the currently disclosed technical solutions for heating electrochemical gas sensors mainly adopt external heating, that is, heating the sensor by placing heating elements on the outside of the electrochemical gas sensor. The drawbacks of this method include: on the one hand, placing heating elements on one side will cause a temperature gradient in the electrolyte inside the electrochemical sensor. Experiments have shown that this temperature gradient will have a certain impact on the measurement accuracy of the sensor. On the other hand, placing heating elements on multiple sides will increase costs. On the other hand, the external heating element method will also generate energy loss and the heating speed is relatively slow.

[0065] Furthermore, in order to more precisely control the power of the heating element and ensure that the electrolyte reaches the preset operating temperature quickly and uniformly, the heating element is disposed inside the gas sensor. Step S20 may include:

[0066] When the temperature of the electrolyte is lower than the preset operating temperature, the outer shell temperature of the gas sensor is measured using a second temperature sensor; the heating power of the heating element is determined based on the outer shell temperature and the temperature of the electrolyte, and the electrolyte is heated based on the heating power; when the temperature of the electrolyte reaches the preset operating temperature, the heating element is adjusted to a heat preservation mode.

[0067] It's important to understand that the preset operating temperature refers to the optimal temperature that the electrolyte should maintain under normal operating conditions. At this temperature, the sensor's measurement accuracy is relatively high. This temperature value is typically determined based on the electrolyte's physical properties, chemical reaction rate requirements, and the performance requirements of the gas sensor. The heating power determines the heating rate and energy consumption. The heat preservation mode is a working mode of the heating element designed to maintain the electrolyte temperature near the preset operating temperature, preventing it from becoming too high or too low. The heating power in heat preservation mode is usually lower than that in heating mode.

[0068] It should be understood that by comparing the electrolyte temperature with the preset operating temperature, heating is required if the electrolyte temperature is lower than the preset operating temperature. The required heating power is calculated based on the difference between the electrolyte temperature and the casing temperature, as well as the heating rate and efficiency of the heating element. For example, if the difference between the electrolyte temperature and the casing temperature is too large, the heating rate of the heating element can be kept at a lower power. During heating, the electrolyte temperature is continuously monitored, and the power of the heating element is adjusted as needed to ensure that the electrolyte temperature gradually approaches and stabilizes at the preset operating temperature. When the electrolyte temperature reaches the preset operating temperature, the heating element is switched to a heat preservation mode. In heat preservation mode, the heating element operates at a lower power to maintain a stable electrolyte temperature.

[0069] In one example, reference Figure 3 , Figure 3This is a graph showing the relationship between temperature and sensor response value in this application. The internal annular heating method ensures that the front and back surfaces of the sensor's sensing electrode, reference electrode, and counter electrode are at almost the same temperature. This prevents ions in the electrolyte from migrating from warmer to cooler locations due to temperature differences, resulting in a smaller additional current and less impact on the measurement results. At room temperature, the sensor response is relatively stable. The graph shows the change in sensor response value over time. The horizontal axis represents time, and the vertical axis represents the sensor response value. Under low-temperature conditions, internal heating allows the sensor response value to rise rapidly and reach a relatively high stable state within a short time. Compared to internal heating, external heating has a slower response speed and requires a longer time to reach a stable state. The advantages of low-temperature internal heating over low-temperature external heating are: 1. Low-temperature internal heating allows the sensor to enter the working ready state and the stable state more quickly than low-temperature external heating; 2. After entering the stable state, due to the influence of temperature gradient and heating efficiency, the sensor response value in the equilibrium state is lower than the reference value of the measurement state in the figure (lower dashed line in the figure), and the final maximum value of the response is lower than the maximum value reference value of the stable state (upper dashed line in the figure).

[0070] Heating the objects inside the sensor, when the internal structure and heating element power are optimized, with the heating element located inside the sensor, results in heat loss being only about half that of the external element, thus achieving higher heating efficiency. The heating time was measured in practice, and the heating times for the sensor's internal components at various temperature gradients are shown in Table 1.

[0071] Table 1_Heating Time Comparison Table

[0072] initial temperature Final operating temperature Internal heating time External heating time -40℃ 25℃ 51.6s 109.5s -30℃ 25℃ 42.5s 83.7s -20℃ 25℃ 35.3s 71.9s -10℃ 25℃ 27.1s 53.7s 0℃ 25℃ 19.6s 36.2s 10℃ 25℃ 11.5s 22.1s 20℃ 25℃ 3.8s 7.2s

[0073] Heating from -40℃, -30℃, -20℃, -10℃, 0℃, 10℃, and 20℃ to the optimal operating temperature of 25℃ for the electrochemical gas sensor, the sensor response value reached 100%, indicating ideal detection performance. The table data shows that the built-in structure has a shorter heating time, allowing the sensor to quickly reach its optimal operating temperature; the lower the ambient temperature, the greater the external heating loss, resulting in a relatively longer heating time.

[0074] Step S30: Guide gas into the gas sensor through the air intake pipe to detect the first alcohol concentration of the gas.

[0075] It should be understood that by embedding a heating element inside the component to heat the internal components, the temperature gradient of the internal electrolyte is small, and the energy loss of this structure is small and the heating speed is fast. Therefore, the heating element should be connected to the electrolyte.

[0076] In one example, reference Figure 4 , Figure 4 This is a schematic diagram of the gas sensor structure of this application. The diagram shows the various components of the sensor, with the outermost shell surrounding and protecting all internal components. Existing solutions typically increase temperature by heating the shell, while this solution heats the internal electrolyte. The gas inlet is located at the top of the shell, through which gas enters the sensor. The sensing electrode, reference electrode, and counter electrode are located at the center of the sensor and arranged in parallel. The sensing electrode detects the gas, the reference electrode provides a stable potential reference, and the counter electrode participates in the electrochemical reaction. The heating electrode is located below the electrodes, surrounding or close to them to provide heat to heat the electrodes and electrolyte. The sensing medium, located between the electrodes and the electrolyte, is the site of the gas-electrode reaction. The electrolyte fills the area around the electrodes and sensing medium, allowing ions to move between the electrodes, thereby generating a current. An insulation layer, located between the shell and the electrodes, surrounds the electrolyte to reduce heat loss and help maintain the internal temperature of the sensor. A glass window is located on one side of the shell, allowing gas to pass through while protecting the internal components from external environmental influences. The sensor detects gases using internal electrodes and electrolyte, and controls the sensor's temperature by heating the electrodes to ensure it operates at its optimal condition.

[0077] Step S40: When the first alcohol concentration exceeds a preset concentration threshold, the vehicle is prohibited from starting.

[0078] It should be noted that the preset concentration threshold is a pre-defined standard for alcohol concentration used to determine whether a driver is driving under the influence of alcohol. This threshold is usually determined according to legal regulations and traffic safety standards.

[0079] Understandably, in a practical implementation, a prohibition command can be sent to the vehicle's starting module to prevent the engine from starting. Even if the starting module is ready to start, it will stop the subsequent starting process upon receiving the prohibition command. Of course, the vehicle is allowed to start if the initial alcohol concentration does not exceed a preset concentration threshold.

[0080] In this embodiment, upon receiving a vehicle preparation command and a door opening signal, the method involves measuring the temperature of the electrolyte in a gas sensor using a first temperature sensor; heating the electrolyte using a heating element based on the measurement result from the first temperature sensor; guiding gas into the gas sensor through an intake pipe to detect a first alcohol concentration in the gas; and preventing vehicle startup when the first alcohol concentration exceeds a preset concentration threshold. By setting and determining the time when the alcohol lock will be used, the electrolyte in the alcohol sensor is preheated to operate at its optimal temperature, improving the accuracy of the device's detection.

[0081] Reference Figure 5 , Figure 5 This is a flowchart illustrating the second embodiment of the alcohol lock control method of this application. Based on the first embodiment described above, a second embodiment of the alcohol lock control method of this application is proposed.

[0082] In the second embodiment, after step S30, the method further includes:

[0083] Step S301: When the alcohol concentration is less than a preset concentration threshold, the vehicle is allowed to start, and historical usage data of the vehicle is collected.

[0084] It should be noted that historical usage data refers to the record of vehicle usage over a period of time, including but not limited to mileage, driving time, speed, fuel consumption, etc.

[0085] Step S302: Predict the vehicle's usage time based on the historical usage data, and determine the random detection time point and heating time according to the usage time.

[0086] It should be noted that usage time refers to the total duration of the vehicle from start to stop, or the duration of vehicle use within a certain time period. Random detection time point refers to a randomly set detection moment to check the vehicle's or driver's condition; this time point is not fixed but randomly generated according to certain rules or algorithms. Heating time refers to the preheating time to ensure the gas sensor is at its optimal temperature during detection.

[0087] Understandably, when predicting usage time, statistical methods, machine learning algorithms, or time series analysis can be used to process and analyze historical usage data, build predictive models, and predict vehicle usage time over a future period based on historical data. Within the detection cycle, random number generation algorithms can be used to determine specific detection time points, ensuring the randomness and even distribution of detection time points and avoiding excessive concentration or sparseness within a specific time period.

[0088] It should be understood that the heating time needs to be determined based on factors such as the vehicle model, the operating environment (e.g., temperature, humidity), and the frequency and intervals of starts in historical usage data. In cold weather such as winter, the heating time needs to be appropriately extended to ensure that the gas sensor is fully preheated. In warm weather such as summer, the heating time can be appropriately shortened to reduce energy consumption.

[0089] Step S303: Calculate the preset heating time point based on the random detection time point and the heating time, and start the heating element when the current time is the preset heating time point.

[0090] It is understandable that the preset heating time point is the start time when the vehicle control element controls the heating element to heat the gas sensor. The preset heating time point is obtained by subtracting the heating time from the random detection time point. If the result of subtracting the heating time from the random detection time point is before the current time, the preset heating time point can be set to the next reasonable time point after the current time, as close as possible to the next reasonable time point (e.g., the next hour or half-hour point).

[0091] In one example, reference Figure 6 , Figure 6 This is a flowchart of the alcohol lock device's operation. Upon receiving a vehicle standby command, the device triggers an open door signal. Next, according to the pre-set parameters, the detection equipment starts. At this point, the temperature sensor begins to measure the current electrolyte temperature. If the electrolyte temperature is below 25°C, the alcohol sensor will not operate directly but will need to enter a preheating phase. After preheating, the alcohol sensor will perform another temperature check. If the temperature reaches or exceeds 25°C, temperature sensor 2 will operate normally. During normal vehicle operation, the control unit acquires a random detection time point and performs another temperature check using another temperature sensor (temperature sensor 2). If the temperature is still suitable (≥25°C), the alcohol sensor will continue to function; if the temperature is unsuitable (<25°C), the sensor requires additional heating.

[0092] Of course, in order to adjust the heating time in real time based on the comparison between the actual detected electrolyte temperature and the preset operating temperature, and to ensure that the gas sensor always operates in optimal condition and improves detection accuracy, the procedure following step S303 also includes:

[0093] At a random detection time point, the alcohol concentration of the received gas is measured; the electrolyte temperature in the gas sensor of the vehicle at the random detection time point is obtained; the electrolyte temperature is compared with a preset operating temperature, and the heating time is adjusted according to the comparison result.

[0094] Understandably, at random detection points, the system collects gas samples from inside or around the vehicle using gas sensors, simultaneously acquiring the actual temperature of the electrolyte in the gas sensor. This measured electrolyte temperature is compared to the preset operating temperature to assess the current heating power. If the electrolyte temperature is below the lower limit of the preset operating temperature, the system determines that the heating time needs to be increased to raise the electrolyte temperature to a suitable range. If the electrolyte temperature is above the upper limit of the preset operating temperature, the system may choose to reduce the heating time or stop heating to prevent overheating of the electrolyte. Based on temperature differences and heating efficiency, the heating time is calculated and adjusted to ensure that the electrolyte temperature can quickly and stably reach the preset operating temperature. Before the next detection, the heating element is activated to heat the gas sensor according to the adjusted heating time.

[0095] In this embodiment, when the alcohol concentration is less than a preset threshold, the vehicle is allowed to start, and historical usage data of the vehicle is collected. Based on the historical usage data, the vehicle's usage time is predicted, and a random detection time point and a heating time are determined according to the usage time. A preset heating time point is calculated based on the random detection time point and the heating time, and the heating element is activated when the current time is the preset heating time point. By setting a random detection time point, the frequency of driver alcohol concentration detection is increased, thereby improving road safety.

[0096] Reference Figure 7 , Figure 7 This is a flowchart illustrating the third embodiment of the alcohol lock control method of this application. Based on the second embodiment described above, a third embodiment of the alcohol lock control method of this application is proposed.

[0097] In the third embodiment, before step S10, the method further includes:

[0098] Step S101: Receive the user's pre-set estimated departure time.

[0099] It should be noted that the estimated departure time is a desired departure time set in advance by the user based on their travel schedule when using a system or device. This time is typically used by the system or device to plan related operations, such as warm-up, startup preparation, and route planning, to ensure that the system or device is in optimal working condition when the user actually departs.

[0100] Step S102: Start the heating element in advance based on the expected departure time, and send a notification to the user through the bound device.

[0101] Understandably, upon receiving the estimated departure time, the system calculates a suitable preheating start time based on factors such as the estimated departure time, the heating efficiency of the heating element, and the required preheating time. The preheating start time is typically a fixed period before the estimated departure time to ensure the heating element has sufficient time to reach its optimal operating state. When the calculated heating start time arrives, the system automatically activates the heating element. Simultaneously, a notification is sent to the user via their linked device (such as a mobile application, smartwatch notification, etc.) to remind them that heating is complete and they are safe to depart or use the relevant equipment.

[0102] In one example, reference Figure 8 , Figure 8 This is a schematic diagram of the alcohol-based vehicle locking device of this application. The device includes a breathalyzer, a vacuum pump, an alcohol sensor, a pressure sensor, a temperature sensor, and a control unit. It includes two temperature sensors: temperature sensor 1 measures the temperature of the sensor housing, and temperature sensor 2, located inside the alcohol sensor, measures the temperature of the electrolyte. The driver blows air through the breathalyzer so the system can detect the exhaled gas. The vacuum pump draws a gas sample from the breathalyzer, ensuring the gas is delivered to the sensor for analysis. The pressure sensor, installed after the vacuum pump, detects the pressure of the gas sample, ensuring stable gas flow. The system's central processing unit receives data from the various sensors and processes and makes decisions based on preset logic (e.g., receiving the user's estimated departure time and calculating the heating element's start time and heating power). The alcohol sensor detects the alcohol concentration in the gas sample. If the detected alcohol concentration exceeds a preset safety threshold, the control unit will take appropriate measures, such as preventing the vehicle from starting.

[0103] In the third embodiment, after step S40, the method further includes:

[0104] Step S401: Upon receiving a retest signal triggered by the user, measure the second alcohol concentration of the currently received gas based on the gas sensor.

[0105] It should be noted that the retest signal is a signal triggered by the user in some way (such as pressing a button, voice command, etc.), instructing the system to re-measure the gas concentration. This is typically used after the initial measurement, when the user wants to obtain the current gas concentration value again for some reason (such as suspecting the measurement result is inaccurate, or due to changes in the environment). The second alcohol concentration measurement occurs after receiving the user-triggered retest signal, at which point the gas sensor re-measures the alcohol concentration in the current environment.

[0106] Step S402: When the second alcohol concentration is less than a preset concentration threshold, unlock the vehicle start restriction.

[0107] Understandably, when a user triggers a retest signal, the system instructs the system to remeasure the alcohol concentration in the current environment. If the second alcohol concentration is less than a preset threshold, the system determines that the user has not consumed alcohol or that the amount consumed is within a safe range. Therefore, it unlocks the vehicle's start-up restrictions, allowing the user to start the vehicle normally, and records the result of the previous strategy. If the second alcohol concentration is greater than or equal to the preset threshold, the system determines that the user has consumed excessive alcohol. Therefore, it keeps the vehicle's start-up restrictions locked to prevent the user from driving under the influence. Simultaneously, the system provides feedback to the user on the measurement results and the status of the vehicle's start-up restrictions through the user interface (such as a display screen, indicator lights, and sound prompts). If the vehicle's start-up restrictions are locked, the system may provide guidance or suggestions for unlocking, such as waiting a period of time before taking another measurement. The controller also records the measurement results and the status of the vehicle's start-up restrictions in a log file for subsequent analysis and processing.

[0108] In this embodiment, users can preset their departure time and activate the heating element in advance, optimizing time management and improving user convenience and satisfaction. Furthermore, users can choose to retest if their blood alcohol concentration exceeds the limit, providing greater flexibility and reducing inconvenience caused by false tests.

[0109] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the alcohol lock control method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0110] This application also provides an alcohol lock control device, please refer to... Figure 9 The alcohol lock control device includes:

[0111] Temperature measurement module 10 is used to measure the temperature of the electrolyte in the gas sensor based on the first temperature sensor after receiving the vehicle preparation command and door opening signal.

[0112] The temperature heating module 20 is used to heat the electrolyte by means of a heating element according to the measurement result of the first temperature sensor, wherein the heating element is disposed inside the gas sensor;

[0113] The alcohol measurement module 30 is used to guide gas into the gas sensor through the air inlet pipe and detect the alcohol concentration of the gas;

[0114] The vehicle control module 40 is used to prevent the vehicle from starting when the alcohol concentration exceeds a preset concentration threshold.

[0115] The alcohol lock control device provided in this application, employing the alcohol lock control method described in the above embodiments, solves the technical problem that over 50% of the sensors used in existing vehicle alcohol lock devices are electrochemical gas sensors. These sensors measure the alcohol concentration in the driver's breath, but their temperature range is relatively narrow, and in low-temperature environments, the coolant activity is insufficient, leading to low accuracy in alcohol measurement. Compared to the prior art, the beneficial effects of the alcohol lock control device provided in this application are the same as those of the alcohol lock control method provided in the above embodiments, and other technical features of the alcohol lock control device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0116] This application provides an alcohol lock control device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the alcohol lock control method in Embodiment 1 above.

[0117] The following is for reference. Figure 10 The diagram illustrates a structural schematic of an alcohol lock control device suitable for implementing embodiments of this application. The alcohol lock control device in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 10 The alcohol lock control device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of this application.

[0118] like Figure 10As shown, the alcohol lock control device may include a processing unit 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the alcohol lock control device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the alcohol lock control device to communicate wirelessly or wiredly with other devices to exchange data. Although the figures show alcohol lock control devices with various systems, it should be understood that implementation or possession of all the systems shown is not required. More or fewer systems may be implemented alternatively.

[0119] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0120] The alcohol lock control device provided in this application, employing the alcohol lock control method described in the above embodiments, solves the technical problem that over 50% of the sensors used in existing vehicle alcohol lock devices are electrochemical gas sensors. These sensors measure the alcohol concentration in the driver's exhaled breath, but their temperature range is relatively narrow, and in low-temperature environments, the coolant activity is insufficient, leading to low accuracy in alcohol measurement. Compared to the prior art, the beneficial effects of the alcohol lock control device provided in this application are the same as those of the alcohol lock control method provided in the above embodiments, and other technical features of this alcohol lock control device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0121] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0122] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0123] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the alcohol lock control method in the above embodiments.

[0124] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0125] The aforementioned computer-readable storage medium may be included in the alcohol lock control device; or it may exist independently and not assembled into the alcohol lock control device.

[0126] The aforementioned computer-readable storage medium carries one or more programs, which, when executed by the alcohol lock control device, cause the alcohol lock control device to perform the alcohol lock control method described above.

[0127] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0128] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0129] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0130] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described alcohol lock control method. This addresses the technical problem that over 50% of the sensors used in existing vehicle alcohol lock devices are electrochemical gas sensors. These sensors measure the alcohol concentration in the driver's exhaled breath, but their temperature range is relatively narrow, and the coolant's activity is insufficient in low-temperature environments, leading to low accuracy in alcohol measurement. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the alcohol lock control method provided in the above embodiments, and will not be repeated here.

[0131] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the alcohol lock control method described above.

[0132] The computer program product provided in this application solves the technical problem that over 50% of the sensors used in existing vehicle alcohol lock devices are electrochemical gas sensors. These sensors measure the alcohol concentration in the driver's exhaled breath, but their temperature range is relatively narrow, and in low-temperature environments, the coolant activity is insufficient, leading to low accuracy in alcohol measurement. Compared to the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the alcohol lock control method provided in the above embodiments, and will not be repeated here.

[0133] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. An alcohol lock control method, characterized in that, The alcohol lock control method includes: After receiving the vehicle preparation command and door opening signal, the temperature of the electrolyte in the gas sensor is measured based on the first temperature sensor. Based on the measurement results of the first temperature sensor, the electrolyte is heated by a heating element; Gas is guided into the gas sensor through the air intake pipe to detect the first alcohol concentration of the gas; The vehicle is prohibited from starting when the first alcohol concentration exceeds a preset concentration threshold; The heating element is located inside the gas sensor; The step of heating the electrolyte using a heating element based on the measurement result of the first temperature sensor includes: When the temperature of the electrolyte is lower than the preset operating temperature, the temperature of the housing in the gas sensor is measured using a second temperature sensor; The heating power of the heating element is determined based on the temperature of the outer casing and the temperature of the electrolyte, and the electrolyte is heated based on the heating power. When the temperature of the electrolyte reaches the preset operating temperature, the heating element is adjusted to the heat preservation mode.

2. The alcohol lock control method as described in claim 1, characterized in that, After the step of guiding gas into the gas sensor through the intake pipe and detecting the first alcohol concentration of the gas, the method further includes: When the alcohol concentration is less than a preset concentration threshold, the vehicle is allowed to start, and historical usage data of the vehicle is collected. The vehicle's usage time is predicted based on the historical usage data, and random detection time points and heating time are determined based on the usage time. The preset heating time point is calculated based on the random detection time point and the heating time, and the heating element is activated when the current time is the preset heating time point.

3. The alcohol lock control method as described in claim 2, characterized in that, After the step of calculating a preset heating time point based on the random detection time point and the heating time, and activating the heating element when the current time is the preset heating time point, the method further includes: The alcohol concentration of the received gas is measured at a random detection time point. The electrolyte temperature in the gas sensor of the vehicle is obtained at a random detection time point; The electrolyte temperature is compared with the preset operating temperature, and the heating time is adjusted according to the comparison result.

4. The alcohol lock control method as described in claim 1, characterized in that, Before the step of measuring the temperature of the electrolyte in the gas sensor based on the first temperature sensor after receiving the vehicle preparation command and door opening signal, the procedure includes: Receive the user's pre-set estimated departure time; The heating element is activated in advance based on the estimated departure time, and a notification is sent to the user through the bound device.

5. The alcohol lock control method as described in claim 1, characterized in that, Following the step of prohibiting vehicle startup when the first alcohol concentration exceeds a preset concentration threshold, the method further includes: Upon receiving a retest signal triggered by the user, the second alcohol concentration of the currently received gas is measured based on the gas sensor; When the second alcohol concentration is less than a preset concentration threshold, the vehicle start restriction is unlocked.

6. An alcohol lock control device, characterized in that, The device includes: The temperature measurement module is used to measure the temperature of the electrolyte in the gas sensor based on the first temperature sensor after receiving the vehicle preparation command and door opening signal. A temperature heating module is used to heat the electrolyte by means of a heating element based on the measurement result of the first temperature sensor, wherein the heating element is disposed inside the gas sensor; An alcohol measurement module is used to guide gas into the gas sensor through an intake pipe and detect the alcohol concentration of the gas. The vehicle control module is used to prevent the vehicle from starting when the alcohol concentration exceeds a preset concentration threshold; The temperature heating module is further configured to: measure the outer casing temperature of the gas sensor using a second temperature sensor when the temperature of the electrolyte is lower than the preset operating temperature; determine the heating power of the heating element based on the outer casing temperature and the temperature of the electrolyte; and heat the electrolyte based on the heating power; and adjust the heating element to a heat preservation mode when the temperature of the electrolyte reaches the preset operating temperature.

7. An alcohol lock control device, characterized in that, The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the alcohol lock control method as described in any one of claims 1 to 5.

8. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the alcohol lock control method as described in any one of claims 1 to 5.

9. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the steps of the alcohol lock control method as described in any one of claims 1 to 5.

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