Concentration monitoring method and system, vehicle and storage medium

By combining sensor networks and high-pressure fans, the problems of insufficient coverage and slow response in traditional refrigerant concentration monitoring are solved, enabling comprehensive and timely detection and safety assurance of refrigerant concentration inside vehicles.

CN121656485APending Publication Date: 2026-03-13FAW JIEFANG AUTOMOTIVE CO
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Patent Information

Application Number
CN202511585920.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Traditional refrigerant concentration monitoring relies on a single sensor, which makes it difficult to effectively cover the interior space of a vehicle and lacks a rapid response mechanism, making it impossible to identify and respond to local refrigerant concentration anomalies in a timely manner, thus affecting vehicle safety.

Method used

The system uses a sensor network to monitor refrigerant concentration and compares it with a preset threshold. If the concentration exceeds the limit, a high-pressure fan is activated to accelerate airflow and ensure that the concentration is reduced in time. Combined with a self-testing mechanism and a multi-point monitoring strategy, it achieves comprehensive detection and rapid response.

Benefits of technology

It enables comprehensive and timely detection of refrigerant concentration inside the vehicle, quickly identifies potential safety threats, and reduces refrigerant concentration through the rapid response and efficient ventilation of the high-pressure fan, ensuring the safety of occupants and vehicle operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a concentration monitoring method and system, a vehicle and a storage medium, and relates to the technical field of vehicle environment monitoring. The concentration monitoring method comprises the steps that the concentration value of a refrigerant at a preset point position is obtained, and the concentration value is obtained through sensor network monitoring; comparing the concentration value with a preset threshold value to obtain a comparison result; and in response to the comparison result that the concentration value is larger than the preset threshold value, a high-pressure fan is controlled to be started, and the high-pressure fan is used for accelerating air flow at the preset point position to reduce the concentration value. The technical problem of how to improve the safety of the vehicle under the condition of refrigerant leakage is solved.
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Description

Technical Field

[0001] This invention relates to the field of vehicle environmental monitoring technology, and more specifically, to a concentration monitoring method, system, vehicle, and storage medium. Background Technology

[0002] In the modern automotive industry, the use of refrigerant as a cooling medium has become an industry standard. Refrigerant is not only used in air conditioning systems but also plays a crucial role in components such as battery thermal management systems to ensure efficient vehicle operation and passenger comfort. However, the use of refrigerant also carries potential safety risks. When refrigerant leaks inside a vehicle, it can cause environmental pollution and, under certain conditions, even lead to explosions, seriously affecting safe vehicle operation and the personal safety of occupants.

[0003] Traditional refrigerant concentration monitoring typically relies on a single sensor. A single sensor has a limited monitoring range, making it difficult to effectively cover the entire vehicle interior, especially in multi-zone climate control systems where locally high refrigerant concentrations may go undetected. Secondly, existing technologies lack a rapid response mechanism when abnormal refrigerant concentrations are detected, failing to take immediate measures to reduce the concentration and compromise vehicle safety. Therefore, improving vehicle safety in the event of a refrigerant leak is a crucial technical challenge in this field.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This invention provides a concentration monitoring method, system, vehicle, and storage medium to at least address the technical problem of how to improve vehicle safety in the event of refrigerant leakage.

[0006] According to one aspect of the present invention, a concentration monitoring method is provided, comprising: acquiring a refrigerant concentration value at a preset point, wherein the concentration value is obtained by monitoring through a sensor network; comparing the concentration value with a preset threshold to obtain a comparison result; and controlling a high-pressure fan to start in response to the comparison result indicating that the concentration value is greater than the preset threshold, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value.

[0007] Optionally, the concentration value includes multiple regional values, wherein each regional value corresponds to a preset point. In response to the comparison result indicating that the concentration value is greater than a preset threshold, controlling the high-pressure fan to start includes: in response to the comparison result indicating that there is a regional value among the multiple regional values ​​that is greater than the preset threshold, controlling the high-pressure fan to start.

[0008] Optionally, in response to the comparison result indicating that there is a region value greater than a preset threshold among the multiple region values, controlling the high-pressure fan to start includes: in response to the comparison result indicating that there is an abnormal value greater than the preset threshold among the multiple region values, determining the preset location corresponding to the abnormal value; controlling the high-pressure fan to start and move towards the preset location corresponding to the abnormal value.

[0009] Optionally, obtaining the refrigerant concentration value at a preset point includes: controlling the sensor network to perform a self-test and obtaining the self-test result; in response to the self-test result indicating that the sensor network's function meets the preset operating conditions, obtaining the refrigerant concentration value at the preset point.

[0010] Optionally, the concentration monitoring method further includes: in response to a self-test result indicating the presence of a malfunctioning sensor in the sensor network, identifying the malfunctioning sensor; and outputting a malfunction signal corresponding to the malfunctioning sensor.

[0011] Optionally, responding to the comparison result indicating that the concentration value is greater than a preset threshold, controlling the high-pressure fan to start includes: responding to the comparison result indicating that the concentration value is greater than the preset threshold, determining the risk level corresponding to the concentration value according to a preset strategy; determining the target output power of the high-pressure fan based on the risk level; and controlling the high-pressure fan to start based on the target output power.

[0012] According to another aspect of the present invention, a concentration monitoring system is also provided, comprising: an acquisition module for acquiring a refrigerant concentration value at a preset point, wherein the concentration value is obtained by monitoring through a sensor network; a comparison module for comparing the concentration value with a preset threshold to obtain a comparison result; and a control module for controlling a high-pressure fan to start in response to the comparison result indicating that the concentration value is greater than the preset threshold, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value.

[0013] According to another aspect of the present invention, a vehicle is also provided, comprising: a memory storing an executable program; and a processor for running the executable program, wherein the executable program executes the concentration monitoring method described in any of the above embodiments.

[0014] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein, when the executable program is executed, it controls the device where the storage medium is located to perform the concentration monitoring method described in any of the above.

[0015] According to another aspect of the present invention, a computer program product is also provided, including a computer program that, when executed by a processor, implements the concentration monitoring method described in any of the above embodiments.

[0016] In this embodiment of the invention, the refrigerant concentration value at a preset point is obtained, wherein the concentration value is monitored by a sensor network; the concentration value is compared with a preset threshold to obtain a comparison result; in response to the comparison result indicating that the concentration value is greater than the preset threshold, a high-pressure fan is controlled to start, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value. This invention first monitors the refrigerant concentration value at the preset point through a sensor network, enabling comprehensive detection of the refrigerant concentration inside the vehicle, ensuring timely detection of anomalies even in the event of a local leak, thereby improving the accuracy and timeliness of monitoring. Secondly, comparing the detected concentration value with a preset threshold allows for rapid identification of whether the refrigerant concentration has reached a level that may threaten safety. This mechanism ensures an immediate response when the refrigerant concentration abnormally increases, avoiding further accumulation of concentration due to delayed response, thereby reducing the possibility of occupants being exposed to a high-concentration refrigerant environment. Finally, in response to the refrigerant concentration exceeding a preset threshold, the high-pressure fan is automatically activated, accelerating airflow at the preset point and effectively reducing the refrigerant concentration. The high-pressure fan's rapid response and efficient ventilation capacity quickly dilute the leaked refrigerant, reducing the accumulation of harmful substances. By improving air circulation, it promotes air renewal inside the vehicle, ensuring the respiratory safety of occupants and the driving safety of the vehicle. In summary, this invention achieves the technical effect of effectively improving vehicle safety in the event of a refrigerant leak, thereby solving the technical problem of how to improve vehicle safety in the event of a refrigerant leak. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a flowchart of a concentration monitoring method according to one embodiment of the present invention; Figure 2 This is a structural block diagram of a concentration monitoring system according to one embodiment of the present invention. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] According to an embodiment of the present invention, an embodiment of a concentration monitoring method is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0021] Figure 1 This is a flowchart of a concentration monitoring method according to one embodiment of the present invention, such as... Figure 1 As shown, the method includes the following steps: Step S101: Obtain the refrigerant concentration value at a preset point, wherein the concentration value is obtained by monitoring through a sensor network; Step S102: Compare the concentration value with a preset threshold to obtain the comparison result;

[0022] Step S103: In response to the comparison result showing that the concentration value is greater than the preset threshold, the high-pressure fan is controlled to start, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value.

[0023] The aforementioned sensor network refers to a wireless network composed of multiple sensor nodes distributed within a certain area. Each sensor node can sense surrounding physical or environmental parameters and transmit this information to the central node or other sensor nodes in the network via wireless communication, forming a collaborative monitoring network covering a large area. In this embodiment, each sensor node in the sensor network is used to sense the surrounding refrigerant concentration.

[0024] The aforementioned preset monitoring points refer to multiple pre-set refrigerant concentration monitoring points in key areas inside the vehicle, such as the passenger compartment, engine compartment, and air conditioning system. By monitoring the concentration at these preset points, refrigerant abnormalities can be detected immediately.

[0025] The refrigerant concentration value mentioned above refers to the mass or proportion of refrigerant contained in a unit volume of air, and is an important indicator for assessing refrigerant leakage.

[0026] During concentration monitoring, each sensor in the sensor network is precisely calibrated to ensure the accuracy and consistency of its monitoring data. The sensors in the sensor network can be electrochemical sensors, infrared absorption sensors, or other types of gas detection sensors, all possessing high sensitivity and capable of monitoring the refrigerants used in vehicles.

[0027] In one alternative embodiment, each sensor in the sensor network is connected to a central processing unit (CPU), which is responsible for collecting and analyzing data from each sensor. To enhance monitoring reliability, the functional status of the sensor network needs to be checked regularly to ensure all sensors are functioning properly. Any malfunctioning sensor will trigger an alarm, allowing for timely replacement or repair.

[0028] In addition, the design of the sensor network should take into account various operating conditions of the vehicle, and be able to operate stably even under extreme conditions (such as high temperature and vibration).

[0029] The aforementioned preset threshold refers to a pre-defined upper limit for refrigerant concentration. When the monitored refrigerant concentration exceeds the preset threshold, a risk of refrigerant leakage is considered to exist.

[0030] Setting the preset threshold requires comprehensive consideration of various factors, including but not limited to the physicochemical properties of the refrigerant, safe limits for human exposure, and ventilation conditions inside the vehicle. Optionally, the preset threshold setting needs to undergo rigorous testing and verification to ensure that it can effectively warn of refrigerant leaks without causing frequent false alarms due to an excessively low setting, thus affecting system stability and user experience.

[0031] The above comparison results refer to the conclusions drawn after comparing the refrigerant concentration value with the preset threshold. The comparison results include two scenarios: a concentration value lower than or equal to the preset threshold indicates that the refrigerant concentration is within the safe range; a concentration value higher than the preset threshold indicates that the refrigerant concentration exceeds the safe limit and requires emergency handling.

[0032] In one alternative embodiment, a processor in the vehicle is responsible for comparing the concentration value with a preset threshold. The processor can be the vehicle's central controller or a microcontroller unit specifically designed for monitoring.

[0033] Optionally, comparison operations are typically implemented using simple algorithms, such as direct numerical comparisons. However, to improve the intelligence and adaptability of monitoring, more complex algorithms, such as machine learning models, can be used to predict and assess trends and potential risks in refrigerant concentration.

[0034] The aforementioned high-pressure fan is a ventilation device capable of generating strong airflow. Its main function is to increase airflow speed when refrigerant concentration abnormally high, thereby accelerating refrigerant diffusion and reducing its local concentration. The design of high-pressure fans must consider noise control and energy efficiency to adapt to the application environment inside vehicles.

[0035] Optionally, the start-up control of the high-pressure fan should be as fast and accurate as possible to ensure that the high-pressure fan can start in the shortest possible time if the concentration exceeds the standard. In addition, in order to reduce energy consumption, the start-up time, speed and direction of the high-pressure fan can be dynamically adjusted according to actual needs, rather than always maintaining maximum power operation.

[0036] In one alternative embodiment, during the vehicle design phase, the layout of the high-pressure fan should be optimized based on airflow simulation results to ensure it effectively covers preset locations and accelerates air circulation. Simultaneously, the design layout of the high-pressure fan must also consider its impact on the vehicle's interior noise level and the economic efficiency of energy consumption.

[0037] In one optional embodiment, when the comparison result shows that the concentration value is higher than a preset threshold, emergency response measures are initiated, including turning on the high-pressure fan, and an alarm system can also be triggered to issue an alarm to the occupants and external rescue personnel through sound and light signals, vehicle communication systems, etc.

[0038] In this embodiment of the invention, the refrigerant concentration value at a preset point is obtained, wherein the concentration value is monitored by a sensor network; the concentration value is compared with a preset threshold to obtain a comparison result; in response to the comparison result indicating that the concentration value is greater than the preset threshold, a high-pressure fan is controlled to start, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value. This invention first monitors the refrigerant concentration value at the preset point through a sensor network, enabling comprehensive detection of the refrigerant concentration inside the vehicle, ensuring timely detection of anomalies even in the event of a local leak, thereby improving the accuracy and timeliness of monitoring. Secondly, comparing the detected concentration value with a preset threshold allows for rapid identification of whether the refrigerant concentration has reached a level that may threaten safety. This mechanism ensures an immediate response when the refrigerant concentration abnormally increases, avoiding further accumulation of concentration due to delayed response, thereby reducing the possibility of occupants being exposed to a high-concentration refrigerant environment. Finally, in response to the refrigerant concentration exceeding a preset threshold, the high-pressure fan is automatically activated, accelerating airflow at the preset point and effectively reducing the refrigerant concentration. The high-pressure fan's rapid response and efficient ventilation capacity quickly dilute the leaked refrigerant, reducing the accumulation of harmful substances. By improving air circulation, it promotes air renewal inside the vehicle, ensuring the respiratory safety of occupants and the driving safety of the vehicle. In summary, this invention achieves the technical effect of effectively improving vehicle safety in the event of a refrigerant leak, thereby solving the technical problem of how to improve vehicle safety in the event of a refrigerant leak.

[0039] Optionally, the concentration value includes multiple regional values, wherein each regional value corresponds to a preset point. In step S103, in response to the comparison result indicating that the concentration value is greater than the preset threshold, controlling the high-pressure fan to start includes: in response to the comparison result indicating that there is a regional value among the multiple regional values ​​that is greater than the preset threshold, controlling the high-pressure fan to start.

[0040] The aforementioned multiple regional values ​​refer to refrigerant concentration data collected from multiple monitoring points (i.e., preset locations) set up inside the vehicle. These monitoring points can be distributed in potential refrigerant leak or accumulation points such as the passenger compartment, engine compartment, and air conditioning system. The concentration value at each point reflects the refrigerant concentration status of that local area.

[0041] Each sensor at a monitoring point independently collects data, which is then aggregated and analyzed to create a complete refrigerant concentration distribution map inside the vehicle. This map helps to accurately identify the specific location of a refrigerant leak.

[0042] In one optional embodiment, the preset threshold needs to be dynamically adjusted. The preset threshold is optimized in real time based on changes in vehicle operating status (such as vehicle speed and air conditioning operating mode) and external environment (such as temperature and humidity) to ensure monitoring accuracy and timely response.

[0043] In addition, when controlling the start-up of high-pressure fans, it is necessary not only to consider the concentration exceeding the standard, but also to intelligently adjust the number of fans, speed and direction of start-up based on the size of the exceeding area and the specific location of the exceeding area, so as to achieve the most effective ventilation effect and reduce unnecessary energy consumption.

[0044] In one optional embodiment, multiple high-pressure fans can be deployed near different preset monitoring points. Even if some fans fail, ventilation can be ensured by other fans to reduce the refrigerant concentration.

[0045] By monitoring the refrigerant concentration at multiple preset points, the high-pressure fan is immediately activated when the refrigerant concentration at any preset point exceeds a preset threshold, achieving comprehensive protection of the vehicle's interior environment. This multi-point monitoring and targeted ventilation strategy can quickly respond to refrigerant leaks, effectively reduce local concentrations, and avoid the safety risks that may be caused by excessively high refrigerant concentrations.

[0046] Optionally, in response to the comparison result indicating that there is a region value among the multiple region values ​​that is greater than a preset threshold, the high-pressure fan is controlled to start, including the following steps: Step S1031: In response to the comparison results showing that there are outliers greater than a preset threshold among multiple region values, determine the preset site corresponding to the outlier;

[0047] Step S1032: Control the high-pressure fan to start and move towards the preset position corresponding to the abnormal value.

[0048] In refrigerant concentration monitoring, when a sensor network detects a value in a certain area that exceeds a preset safety threshold, that value is considered an anomaly. The occurrence of an anomaly is a direct trigger for initiating an emergency response.

[0049] The preset locations correspond to the monitoring points in the sensor network. The selection of preset locations is based on possible refrigerant leakage paths and accumulation points, ensuring that the high-pressure fan can effectively ventilate areas with abnormally high refrigerant concentrations.

[0050] Optionally, by using techniques such as map matching, 3D modeling, or deep learning algorithms, the preset locations corresponding to outliers can be analyzed in a very short time to ensure the accuracy of positioning and the timeliness of response.

[0051] In one optional embodiment, the high-pressure fan can adjust its airflow direction according to a preset location corresponding to the abnormal value, directly targeting the area with abnormally high concentration to achieve precise ventilation. Specifically, the activation of the high-pressure fan is not only based on the judgment of abnormal concentration, but also dynamically adjusts the output power and direction of the fan according to information such as the size, location, and wind direction prediction of the abnormal area, in order to achieve the best ventilation effect while minimizing the impact on passenger comfort and energy waste.

[0052] In one optional embodiment, in addition to activating the high-pressure fan, the vehicle's alarm system, air conditioning system, etc., can also be linked to reduce the refrigerant concentration through multiple measures, ensuring the safe driving of the vehicle and the safety of the occupants, and ensuring that the in-vehicle environment is quickly restored to a safe state.

[0053] Optionally, by providing an intuitive user interface, the specific location of the abnormal area, the trend of concentration value changes, and the execution status of the emergency response can be displayed, making it easier for occupants to understand the current safety status of the vehicle and take necessary self-protection measures.

[0054] Specifically, data on refrigerant concentration collected from the sensor network, the activation status of the high-pressure fan, and other emergency measures will be integrated and transmitted to the user interface via the vehicle's onboard network. This process may involve data filtering, compression, and encryption to ensure the accuracy and security of the information. The user interface needs to have real-time data processing capabilities to quickly update and display refrigerant concentration information, concentration change trends, and the execution status of emergency responses. This is typically achieved through efficient computing algorithms and graphics rendering techniques. Furthermore, to visually display the specific location of abnormal areas, the user interface can use a 3D map or floor plan of the vehicle's interior to graphically mark areas of abnormal concentration. This visual representation not only clearly conveys information but also helps occupants quickly locate the problem.

[0055] Optionally, when designing the user interface, the main screen can display a refrigerant concentration distribution map inside the vehicle, using different colors or temperature graphs to represent the refrigerant concentration at each monitoring point. Abnormal areas should be highlighted with prominent colors or icons to attract the attention of occupants. Furthermore, the user interface can provide a timeline chart showing concentration trend changes, displaying concentration fluctuations in abnormal areas over a period of time to help occupants understand the development trend of the leak. In addition, the user interface can clearly display the activation status of the high-pressure fan, including its location, speed, and running time, and can also display the execution status of other emergency measures, such as adjustments to the vehicle's air conditioning system operating mode and the triggering of alarm signals. Further, the user interface should display concise operating instructions, guiding occupants on how to take self-protective measures in an emergency, such as adjusting seat positions and closing doors and windows, as well as safety warnings informing occupants of the current vehicle safety status and subsequent precautions.

[0056] Optionally, when the refrigerant concentration rises abnormally, a notification should be sent to the user interface, which can be displayed as a pop-up, audible alarm, or vibration to alert the occupants. Furthermore, the user interface should provide functions for manually checking the refrigerant concentration and emergency system status, as well as a reset operation after confirming the problem has been resolved, to avoid false alarms or persistent alarms.

[0057] It is easy to understand that by providing an intuitive user interface, occupants can enhance their real-time awareness of the safety status of the vehicle's interior environment, thereby improving their reaction speed and self-protection capabilities in emergencies such as refrigerant leaks.

[0058] Optionally, in step S101, obtaining the refrigerant concentration value at a preset point includes the following steps: Step S1011: Control the sensor network to perform a self-test and obtain the self-test result;

[0059] Step S1012: In response to the self-test result indicating that the sensor network's function meets the preset operating conditions, the refrigerant concentration value at the preset point is obtained.

[0060] The aforementioned self-test refers to an automatic detection mechanism used to verify whether the functions of each sensor in the sensor network are normal.

[0061] Self-testing typically includes multiple aspects such as signal strength testing, data transmission testing, and sensor accuracy verification.

[0062] Optionally, after the self-test is completed, a report on the status of the sensor network is generated. If all sensors are working properly, the self-test result is "passed"; otherwise, it is "failed".

[0063] In one alternative embodiment, the self-test can be triggered automatically when the vehicle starts, or it can be performed periodically, such as before each driving session or at regular intervals. Furthermore, manual self-test commands should be supported for ease of maintenance and troubleshooting.

[0064] Specifically, the self-test process needs to include testing the integrity of the sensor signal, the stability of the data transmission link, and the accuracy and sensitivity of the sensor itself. Signal integrity can be assessed by sending a test signal to the sensor and checking the return value; data transmission testing verifies whether the data transmission from the sensor to the central processing unit is timely and lossless; and the verification of sensor accuracy and sensitivity involves using standard gas samples to measure concentrations and compare the differences between the actual output and the expected value.

[0065] In addition, the self-test results need to be analyzed in real time to identify any malfunctioning sensors. For detected malfunctioning sensors, recalibration or restarting the sensor can be attempted to resolve the issue. If the problem cannot be resolved automatically, the information of the faulty sensor should be recorded, and a maintenance reminder should be sent to the user via the vehicle's alarm system or mobile application.

[0066] Optionally, considering the possibility of individual sensor failure, multiple sensors can be installed in critical areas. Even if some sensors fail, the remaining sensors can still maintain normal operation, ensuring the continuity and reliability of monitoring data.

[0067] The aforementioned preset operating conditions refer to multiple technical indicators and operating requirements defined for the sensor network, including but not limited to the sensor's response time, accuracy, data transmission rate, and operating temperature range, to ensure that the sensor network can work stably and accurately in various environments.

[0068] In one alternative embodiment, the preset operating conditions should be set based on the sensor's maximum performance range and the actual environment in which the vehicle operates.

[0069] In one alternative embodiment, the self-testing and concentration value acquisition of the sensor network can be managed in a centralized manner, i.e., uniformly scheduled and managed by a central processing unit; or a decentralized management strategy can be adopted, i.e., each sensor node can independently complete self-testing and upload the collected refrigerant concentration value data at preset points to the central processing unit, so that even if a part of the network fails, the rest can still work normally.

[0070] Once the sensor network passes its self-test, it activates multiple sensors deployed within the network to collect refrigerant concentration data at preset locations. The collected refrigerant concentration data is processed and analyzed in real time to determine the current refrigerant concentration inside the vehicle.

[0071] By performing a self-test on the sensor network before acquiring refrigerant concentration values, the reliability of the acquired refrigerant concentration data at preset locations is ensured.

[0072] Optionally, the concentration monitoring method further includes the following steps: Step S1013: In response to the self-test result indicating the presence of a malfunctioning sensor in the sensor network, identify the malfunctioning sensor.

[0073] Step S1014: Output the functional abnormality signal corresponding to the abnormal sensor.

[0074] The aforementioned functional abnormalities refer to situations where the sensor fails to meet the preset operating conditions during the network self-test process, including but not limited to sensor insensitivity, data transmission errors, insufficient signal strength, or output values ​​exceeding the reasonable range.

[0075] The aforementioned faulty sensors refer to those identified as malfunctioning during the self-test process. Faulty sensors may fail to provide accurate refrigerant concentration data due to aging, damage, external interference, or other technical issues.

[0076] In one alternative embodiment, abnormal sensors that are malfunctioning are screened from the sensor network, and the location, type, and degree of abnormality of the abnormal sensors are recorded and identified.

[0077] Optionally, intelligent recognition algorithms (such as pattern recognition) can be used to automatically identify whether each sensor in the sensor network meets the preset operating conditions and quickly determine which sensors are malfunctioning.

[0078] Furthermore, for identified anomalous sensors, they are isolated from the sensor network and their status is continuously tracked, including recording the time, frequency, and duration of the anomaly.

[0079] In one alternative embodiment, when an abnormal sensor is detected, a timely warning can be issued to the driver or system administrator via the vehicle dashboard, mobile application, or other user interface, while providing a detailed fault report, including the location of the abnormal sensor, possible causes, and recommended repair steps.

[0080] Furthermore, for identified abnormal sensors, their output data is automatically masked to prevent it from affecting the overall concentration monitoring results. Simultaneously, data from other normally functioning sensors and historical concentration records are used to estimate the true concentration in the area where the abnormal sensor is located, ensuring the integrity and accuracy of the monitoring data.

[0081] The aforementioned abnormal function signals include information such as the identifier, type, location of the abnormal sensor, and the specific manifestation of the abnormality, which are used for internal fault marking and external fault warning.

[0082] In one alternative embodiment, the malfunction signal employs a standardized encoding scheme to ensure accurate and error-free information transmission. The malfunction signal transmission can be achieved through the vehicle's internal communication network or wireless network, ensuring that the malfunction signal quickly reaches all pre-designated receivers.

[0083] Optionally, the abnormal function signal can be output to a preset receiving terminal, including the vehicle's central control unit, driver information display screen, dedicated application on mobile device, and remote monitoring center, to ensure that abnormal information can be captured and processed in a timely manner.

[0084] In one alternative embodiment, when a malfunction signal is output to the user interface, it attracts the driver's attention with a prominent warning, such as a flashing icon, a red warning message, or an audible alarm. The malfunction signal is accompanied by a detailed description of the fault and suggested operating procedures to help the driver understand the problem and take appropriate action.

[0085] In another alternative embodiment, the malfunction signal is sent remotely to the vehicle service center or the manufacturer's cloud platform. Upon receiving the malfunction signal, the vehicle service center or the manufacturer's cloud platform quickly locates the problem, contacts the driver, and provides professional fault diagnosis and repair guidance.

[0086] Alternatively, for some common sensor failures, the sensor's functionality can be restored without external intervention by attempting to restart the sensor, perform online calibration, or adjust sensor parameters.

[0087] By outputting the functional abnormality signal corresponding to the abnormal sensor, the abnormal situation in the sensor network can be reported to the driver or service center in a timely and accurate manner, thereby helping to quickly repair the abnormal sensor.

[0088] Optionally, in step S103, in response to the comparison result indicating that the concentration value is greater than a preset threshold, the high-pressure fan is controlled to start, including the following steps: Step S1033: In response to the comparison results showing that the concentration value is greater than the preset threshold, the risk level corresponding to the concentration value is determined according to the preset strategy. Step S1034: Determine the target output power of the high-pressure fan based on the risk level;

[0089] Step S1035: Control the high-voltage fan to start according to the target output power.

[0090] The aforementioned pre-defined strategy refers to a set of rules or algorithms that determine the risk level based on refrigerant concentration values. These strategies are typically developed based on refrigerant characteristics and vehicle safety standards, and are used to guide the appropriate level of emergency response at different concentration levels.

[0091] Based on the relationship between refrigerant concentration and preset thresholds, safety risks are categorized into different levels, such as low risk, medium risk, and high risk. Each risk level corresponds to different emergency response procedures and passenger warning messages.

[0092] In one optional embodiment, an emergency response procedure matching the risk level is pre-set. For example, when the refrigerant concentration is greater than a preset threshold but less than a first warning threshold, the current risk level is determined to be low risk. At this time, a warning message is displayed via a user interface (such as the dashboard, the vehicle's built-in multimedia screen, or a connected smartphone app) to remind the driver of the vehicle's air conditioning or cooling system status, but without restricting normal vehicle operation. When the refrigerant concentration is greater than both the preset threshold and the first warning threshold, but less than a second warning threshold, the current risk level is determined to be medium risk. In medium risk situations, in addition to displaying a warning message, certain vehicle functions are also restricted, such as shutting down the air conditioning system, to prevent further refrigerant diffusion. When the refrigerant concentration is greater than the second warning threshold, the current risk level is determined to be high risk. In high-risk situations, strict emergency measures are immediately taken, including but not limited to automatically shutting off the engine, opening all emergency vents and windows, activating emergency lights, and sending a distress signal to a pre-set emergency contact or service provider via the vehicle communication system. Simultaneously, continuous warning sounds are emitted through the vehicle's speakers, instructing passengers to evacuate the vehicle as soon as possible.

[0093] In one alternative embodiment, the high-pressure fan should have multi-level power regulation capabilities, rather than simply being fully on or off. Different fan speeds and operating modes are selected according to different risk levels; for example, a low-power mode corresponds to low-risk situations, while a high-power mode corresponds to high-risk scenarios.

[0094] Optionally, when determining the target output power based on the risk level, various factors need to be considered, including space size, physical properties of the refrigerant, and current ventilation requirements.

[0095] In one optional embodiment, based on a determined risk level, the target output power of the high-pressure fan is obtained by querying a preset mapping table between risk levels and target output power. This mapping table details the most efficient high-pressure fan output power range for each risk level.

[0096] Optionally, in the case of multiple high-pressure fans inside the vehicle, the target output power of each fan can be intelligently allocated to ensure uniform air circulation throughout the vehicle compartment and effectively reduce the refrigerant concentration at each preset point.

[0097] By dynamically adjusting the target output power of the high-pressure fan according to changes in the risk level, the dual objectives of maximizing ventilation efficiency and minimizing energy consumption are achieved. This control strategy not only mitigates the safety risks caused by refrigerant leakage but also effectively avoids resource waste.

[0098] This invention also provides a concentration monitoring system for implementing the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the systems described in the following embodiments are preferably implemented in software, hardware implementations, or a combination of software and hardware, are also possible and contemplated.

[0099] Figure 2 This is a structural block diagram of a concentration monitoring system according to one embodiment of the present invention, such as... Figure 2 As shown, the concentration monitoring system 200 includes: an acquisition module 201, used to acquire the refrigerant concentration value at a preset point, wherein the concentration value is obtained through sensor network monitoring; a comparison module 202, used to compare the concentration value with a preset threshold to obtain a comparison result; and a control module 203, used to control a high-pressure fan to start in response to the comparison result indicating that the concentration value is greater than the preset threshold, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value.

[0100] Optionally, the concentration value includes multiple regional values, wherein each regional value corresponds to a preset point. The control module 203 is also used to: control the high-pressure fan to start in response to the comparison result showing that there is a regional value among the multiple regional values ​​that is greater than a preset threshold.

[0101] Optionally, the control module 203 is further configured to: in response to the comparison result indicating that there is an outlier value greater than a preset threshold among multiple regional values, determine the preset location corresponding to the outlier value; and control the high-pressure fan to start and move towards the preset location corresponding to the outlier value.

[0102] Optionally, the acquisition module 201 is further configured to: control the sensor network to perform a self-test and obtain the self-test result; in response to the self-test result indicating that the sensor network's function meets the preset operating conditions, acquire the refrigerant concentration value at the preset point.

[0103] Optionally, the acquisition module 201 is further configured to: in response to the self-test result indicating the presence of a faulty sensor in the sensor network, identify the faulty sensor; and output the corresponding faulty signal of the faulty sensor.

[0104] Optionally, the control module 203 is further configured to: in response to a comparison result indicating that the concentration value is greater than a preset threshold, determine the risk level corresponding to the concentration value according to a preset strategy; determine the target output power of the high-pressure fan based on the risk level; and control the high-pressure fan to start based on the target output power.

[0105] According to another aspect of the present invention, a vehicle is also provided, comprising: a memory storing an executable program; and a processor for running the executable program, wherein the executable program executes the concentration monitoring method described in any of the above embodiments.

[0106] Optionally, in this embodiment, the processor in the vehicle can be configured to run an executable program to perform the following steps: Step S101: Obtain the refrigerant concentration value at a preset point, wherein the concentration value is obtained by monitoring through a sensor network; Step S102: Compare the concentration value with a preset threshold to obtain the comparison result;

[0107] Step S103: In response to the comparison result showing that the concentration value is greater than the preset threshold, the high-pressure fan is controlled to start, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value.

[0108] Optionally, the concentration value includes multiple regional values, wherein each regional value corresponds to a preset point. The processor in the vehicle can be configured to run an executable program to perform the following steps: in response to the comparison result indicating that there is a regional value among the multiple regional values ​​that is greater than a preset threshold, control the high-pressure fan to start.

[0109] Optionally, the processor in the vehicle can be configured to run an executable program to perform the following steps: in response to a comparison result indicating that there are outliers greater than a preset threshold among multiple region values, determining a preset location corresponding to the outlier; and controlling a high-pressure fan to start and move toward the preset location corresponding to the outlier.

[0110] Optionally, the processor in the vehicle can be configured to run an executable program to perform the following steps: control the sensor network to perform a self-test and obtain the self-test result; in response to the self-test result indicating that the sensor network's function meets preset operating conditions, obtain the refrigerant concentration value at a preset point.

[0111] Optionally, the processor in the vehicle can be configured to run an executable program to perform the following steps: in response to a self-test result indicating the presence of a faulty sensor in the sensor network, identifying the faulty sensor; and outputting a faulty signal corresponding to the faulty sensor.

[0112] Optionally, the processor in the aforementioned vehicle can be configured to run an executable program to perform the following steps: in response to a comparison result indicating that the concentration value is greater than a preset threshold, determining the risk level corresponding to the concentration value according to a preset strategy; determining the target output power of the high-pressure fan based on the risk level; and controlling the high-pressure fan to start based on the target output power.

[0113] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein, when the executable program is executed, it controls the device where the storage medium is located to perform the concentration monitoring method described in any of the above.

[0114] Optionally, in this embodiment, the executable program can be configured to store an executable program for performing the following steps: Step S101: Obtain the refrigerant concentration value at a preset point, wherein the concentration value is obtained by monitoring through a sensor network; Step S102: Compare the concentration value with a preset threshold to obtain the comparison result;

[0115] Step S103: In response to the comparison result showing that the concentration value is greater than the preset threshold, the high-pressure fan is controlled to start, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value.

[0116] Optionally, the concentration value includes multiple regional values, wherein each regional value corresponds to a preset point. The executable program can be configured to store an executable program for performing the following steps: in response to the comparison result indicating that there is a regional value among the multiple regional values ​​that is greater than a preset threshold, control the high-pressure fan to start.

[0117] Optionally, the executable program can be configured to store an executable program for performing the following steps: in response to a comparison result indicating that there is an outlier value greater than a preset threshold among multiple region values, determining a preset location corresponding to the outlier value; controlling a high-pressure fan to start and move towards the preset location corresponding to the outlier value.

[0118] Optionally, the executable program can be configured to store an executable program for performing the following steps: controlling the sensor network to perform a self-test and obtaining a self-test result; in response to the self-test result indicating that the sensor network's function meets preset operating conditions, obtaining the refrigerant concentration value at a preset point.

[0119] Optionally, the executable program can be configured to store an executable program for performing the following steps: in response to a self-test result indicating the presence of a faulty sensor in the sensor network, identifying the faulty sensor; and outputting a functional fault signal corresponding to the faulty sensor.

[0120] Optionally, the executable program can be configured to store an executable program for performing the following steps: in response to a comparison result indicating that the concentration value is greater than a preset threshold, determining the risk level corresponding to the concentration value according to a preset strategy; determining the target output power of the high-pressure fan based on the risk level; and controlling the high-pressure fan to start based on the target output power.

[0121] According to another aspect of the present invention, a computer program product is also provided, including a computer program that, when executed by a processor, implements the concentration monitoring method described in any of the above embodiments.

[0122] Optionally, in this embodiment, the computer program, when executed by the processor, performs the following steps: Step S101: Obtain the refrigerant concentration value at a preset point, wherein the concentration value is obtained by monitoring through a sensor network; Step S102: Compare the concentration value with a preset threshold to obtain the comparison result;

[0123] Step S103: In response to the comparison result showing that the concentration value is greater than the preset threshold, the high-pressure fan is controlled to start, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value.

[0124] Optionally, the concentration value includes multiple regional values, wherein each regional value corresponds to a preset point. When the computer program is executed by the processor, it performs the following steps: in response to the comparison result indicating that there is a regional value among the multiple regional values ​​that is greater than a preset threshold, the high-pressure fan is controlled to start.

[0125] Optionally, when the above computer program is executed by the processor, it performs the following steps: in response to the comparison result indicating that there is an outlier value greater than a preset threshold among multiple region values, it determines the preset location corresponding to the outlier value; and controls the high-pressure fan to start and move towards the preset location corresponding to the outlier value.

[0126] Optionally, when the above computer program is executed by the processor, it performs the following steps: controlling the sensor network to perform a self-test and obtaining the self-test result; in response to the self-test result indicating that the sensor network's function meets the preset operating conditions, obtaining the refrigerant concentration value at the preset point.

[0127] Optionally, when the above computer program is executed by the processor, it performs the following steps: in response to the self-test result indicating the presence of a faulty sensor in the sensor network, it identifies the faulty sensor; and outputs the corresponding faulty signal of the faulty sensor.

[0128] Optionally, when the above computer program is executed by the processor, it performs the following steps: in response to the comparison result indicating that the concentration value is greater than a preset threshold, it determines the risk level corresponding to the concentration value according to a preset strategy; based on the risk level, it determines the target output power of the high-pressure fan; and based on the target output power, it controls the high-pressure fan to start.

[0129] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated here.

[0130] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0131] In the embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The system embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection of units or modules may be electrical or other forms.

[0132] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0133] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0134] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0135] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A concentration monitoring method, characterized in that, include: The concentration value of refrigerant at a preset point is obtained, wherein the concentration value is obtained by monitoring through a sensor network; The concentration value is compared with a preset threshold to obtain the comparison result; In response to the comparison result indicating that the concentration value is greater than the preset threshold, the high-pressure fan is controlled to start, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value.

2. The concentration monitoring method according to claim 1, characterized in that, The concentration value includes multiple regional values, wherein each of the multiple regional values ​​corresponds one-to-one with the preset point. The step of controlling the high-pressure fan to start in response to the comparison result indicating that the concentration value is greater than the preset threshold includes: In response to the comparison result indicating that there is a region value among the plurality of region values ​​that is greater than the preset threshold, the high-pressure fan is controlled to start.

3. The concentration monitoring method according to claim 2, characterized in that, The response to the comparison result indicating that there is a region value among the plurality of region values ​​greater than the preset threshold, controlling the high-pressure fan to start, includes: In response to the comparison results indicating the presence of outliers greater than the preset threshold among the plurality of region values, a preset location corresponding to the outlier is determined; Control the high-pressure fan to start and move it toward the preset location corresponding to the abnormal value.

4. The concentration monitoring method according to claim 1, characterized in that, The process of obtaining the refrigerant concentration value at the preset point includes: The sensor network is controlled to perform a self-test, and the self-test result is obtained. In response to the self-test result indicating that the sensor network meets the preset operating conditions, the refrigerant concentration value at the preset point is obtained.

5. The concentration monitoring method according to claim 4, characterized in that, The method further includes: In response to the self-test result indicating the presence of a malfunctioning sensor in the sensor network, the malfunctioning sensor is identified. Output the functional abnormality signal corresponding to the abnormal sensor.

6. The concentration monitoring method according to claim 1, characterized in that, The step of controlling the high-pressure fan to start in response to the comparison result indicating that the concentration value is greater than the preset threshold includes: In response to the comparison result indicating that the concentration value is greater than the preset threshold, the risk level corresponding to the concentration value is determined according to a preset strategy; The target output power of the high-pressure fan is determined based on the risk level. The high-voltage fan is controlled to start based on the target output power.

7. A concentration monitoring system, characterized in that, include: The acquisition module is used to acquire the refrigerant concentration value at a preset point, wherein the concentration value is obtained through sensor network monitoring; The comparison module is used to compare the concentration value with a preset threshold to obtain a comparison result; A control module is configured to control a high-pressure fan to start in response to the comparison result indicating that the concentration value is greater than the preset threshold, wherein the high-pressure fan is used to accelerate the airflow at the preset point to reduce the concentration value.

8. A vehicle, characterized in that, include: Memory, which stores executable programs; A processor for running the executable program, wherein the executable program, when running, performs the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored executable program, wherein, when the executable program is executed, it controls the device on which the storage medium is located to perform the method according to any one of claims 1 to 6.

10. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method according to any one of claims 1 to 6.