Vehicle oil on-line monitoring system

Abstract

The invention provides a vehicle oil on-line monitoring system, and relates to the technical field of vehicle oil on-line monitoring. The vehicle oil on-line monitoring system comprises a collection device, the collection device comprises a capacitor electrode plate collection system and an inverter module, the positive electrode and the negative electrode of the collection device are connected with an oil tank to collect data of oil in the oil tank, the capacitor electrode plate collection system is electrically connected with the inverter module, and the inverter module is electrically connected with the capacitor electrode plate collection system. The inverter module is electrically connected with a power supply, the acquisition device is connected with two signal lines, and the two signal lines connect the capacitor electrode plate acquisition system with an automobile control system in the vehicle-mounted Tobx based on a Can protocol. External sampling detection is converted into internal automatic detection, the detection time is shortened, real-time monitoring is achieved, meanwhile, the oil state can be monitored in the using state of a vehicle, a lubricating system is better protected, loss is reduced, and the accident risk caused by the oil quality problem is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of on - line monitoring of vehicle oils, and specifically to an on - line monitoring system for vehicle oils. Background Art

[0002] With the increasing number of automobiles and the growing prominence of energy consumption problems, the traditional management method of vehicle oils has been difficult to meet the requirements of real - time monitoring and transparent management. Real - time monitoring of the use of vehicle oils can effectively prevent fuel theft, reduce unnecessary waste, and improve vehicle operation efficiency. Usually, through an on - line monitoring system, by means of Internet of Things (IoT) technology, sensors, data transmission modules, and cloud computing are combined. Sensors on the vehicle can collect real - time data related to fuel, including fuel quantity, oil temperature, oil pressure, etc. These data are transmitted through the network to the cloud for storage and analysis.

[0003] However, the currently common detection systems need to stop the vehicle and manually check the oil samples, and cannot analyze the oil fluid state in real time. After the lubricating oil in the oil tank has been used for a period of time, due to the accumulation of pollutants in the oil or chemical changes in the oil itself, it cannot be used continuously and must be replaced. Therefore, how to detect and replace the lubricating oil in a timely manner is very important. Summary of the Invention

[0004] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides an on - line monitoring system for vehicle oils, aiming to provide a real - time monitoring function. By monitoring the oil fluid state during vehicle use, it can better protect the lubrication system, reduce losses, and reduce the risk of accidents caused by oil quality problems.

[0005] (II) Technical Solutions To achieve the above object, the present invention is realized through the following technical solutions: An on - line monitoring system for vehicle oils, including a collection device. The collection device includes a capacitive electrode sheet collection system and an inverter module. The positive and negative electrodes of the collection device are connected to the oil tank for data collection of the oil fluid inside the oil tank. The capacitive electrode sheet collection system is electrically connected to the inverter module. The inverter module is electrically connected to a power supply. The collection device is connected with two signal lines, and the two signal lines connect the capacitive electrode sheet collection system to the vehicle control system in the vehicle Tobx based on the Can protocol.

[0006] Preferably, for an on - line monitoring system for vehicle oils, the operation method of the system specifically includes the following steps: Step 1, Start: Install and configure the device. First, install the collection device and connect it to the power supply, and then connect the capacitive electrode sheet collection system to the vehicle control system. Step 2, Data Collection: Collect the oil data inside the oil tank using a capacitive electrode plate acquisition system, including the current flow state and the current oil pollution data; Step 3: Data processing and analysis: Preliminarily process the data information collected in Step 2 based on the acquisition board built in the capacitive electrode plate acquisition system, including data cleaning and digital-to-analog conversion; then transmit the preliminarily processed signal to the vehicle control system, and perform signal processing based on the software system built in the vehicle control system and determine the oil quality and state based on the processed data; Step 4: Result display and notification: Convert the data processed in Step 3 and display it on the in-vehicle display screen. At the same time, when the monitoring result is an abnormal value, send a warning notification; Step 5: Remote service and cloud synchronization: After uploading the final data to the cloud, the cloud server uses advanced data analysis and machine learning algorithms to deeply analyze the received data to predict future maintenance requirements and optimize the oil change cycle.

[0007] Preferably, the acquisition device is composed of a housing, a capacitive electrode plate, and an acquisition circuit board. The capacitive electrode plate acquisition system is arranged inside the acquisition circuit board. The inverter module is embedded inside the housing and electrically connected to the acquisition circuit board. The capacitive electrode plate is electrically connected to the acquisition circuit board, and the capacitive electrode plate is in contact connection with the oil inside the oil tank through positive and negative electrodes to acquire data.

[0008] Preferably, the acquisition circuit board is connected with four connecting wires, namely two power supply wires and two signal wires. Among them, the signal wire is connected to the vehicle control system through CAN, and the power supply wires are respectively connected to the inverter module and the capacitive electrode plate, and the inverter module is connected to the vehicle power supply.

[0009] Preferably, the capacitive electrode plate acquisition system in Step 3 completes the real-time monitoring and data transmission of the oil data inside the oil tank based on the signal transmission module and the real-time monitoring module.

[0010] Preferably, the software system built in the vehicle control system in Step 3 completes data processing and analysis based on the signal processing module and the working condition determination module.

[0011] Preferably, Step 4 performs data display and warning notification based on the display information module and the warning module in the software system built in the vehicle control system.

[0012] (III) Beneficial effects The present invention provides an on-line monitoring system for vehicle oil. It has the following beneficial effects: The present invention provides an on-line monitoring system for vehicle oil. By changing the monitoring method from external sampling detection to internal automatic detection, the monitoring system shortens the detection time, improves the vehicle use efficiency, realizes real-time monitoring, makes full use of the oil fluid, and can monitor the oil fluid state under the vehicle use condition to better protect the lubrication system and reduce losses, and reduce the accident risk caused by oil quality problems, forming a more efficient detection process without waiting for the detection time, thereby reducing the accident risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the equipment process of the present invention; Figure 2 It is a schematic diagram of the process of the system usage method of the present invention; Figure 3 It is a schematic diagram of the simple principle process of the present invention; Figure 4 It is a schematic diagram of the frame structure of the system equipment end of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0015] Embodiment: As Figures 1-4 shown, the embodiment of the present invention provides an on-line monitoring system for vehicle oil, including a collection device, characterized in that: the collection device includes a capacitance electrode sheet collection system and an inverter module. The positive and negative electrodes of the collection device are connected to the oil tank to collect data of the oil fluid inside the oil tank. The capacitance electrode sheet collection system is electrically connected to the inverter module, the inverter module is electrically connected to a power supply, the collection device is connected with two signal lines, and the two signal lines are connected to the vehicle control system in the vehicle Tobx through the Can protocol.

[0016] The collection circuit board is connected through the capacitance electrode sheet. The collection circuit board accesses four lines, namely 2 signal lines and 2 power lines. The power lines are connected to a 24v inverter, the inverter is connected to the power supply, and the signal line can is connected to the control system of the vehicle without affecting the use of the control system; the data of the oil fluid is transmitted to the collection circuit board through the capacitance electrode sheet (electrical signal), the collection circuit board performs a layer of processing, and is transmitted to the software on the screen. The software performs parsing, and the parsed result is presented on the screen. Finally, the data is parsed and transmitted to the screen through the control system, and the state of the oil fluid whether it needs to be replaced will be displayed on the screen.

[0017] The acquisition device consists of a housing, capacitive electrode plates, and an acquisition circuit board. The capacitive electrode plate acquisition system is arranged inside the acquisition circuit board. The inverter module is embedded inside the housing and electrically connected to the acquisition circuit board. The capacitive electrode plates are electrically connected to the acquisition circuit board, and the capacitive electrode plates are in contact connection with the oil in the oil tank through the positive and negative electrodes to obtain and collect data; that is, the housing, capacitive electrode plates, acquisition circuit board, and inverter module are designed into an integrated structure, which is not only convenient for carrying and transportation, but also adopts a micro-inverter structure, with a relatively small overall volume and is convenient and fast to use.

[0018] Refer to Figures 1-4 , an on-line monitoring system for vehicle oil. The operation method of this system specifically includes the following steps: Step 1, Start: Install and configure the device. First, install the acquisition device and connect it to the power supply, and then connect the capacitive electrode plate acquisition system to the vehicle control system. Step 2, Data collection: Use the capacitive electrode plate acquisition system to collect the oil data inside the oil tank, including the current flow state and the current oil pollution data. The detection of oil pollutants can be calculated and analyzed by measuring the concentration of pollutants in the oil based on conductivity:

[0019] Among them, is the pollutant concentration, is the conductivity, is the value of current and voltage, is the proportionality constant.

[0020] Step 3, Data processing and analysis: Preliminarily process the data information collected in Step 2 based on the acquisition board built into the capacitive electrode plate acquisition system, including data cleaning and digital-to-analog conversion; then transmit the preliminarily processed signal to the vehicle control system, and perform signal processing based on the software system built into the vehicle control system and determine the oil quality and state based on the processed data. Among them, data cleaning and preprocessing use the Z-score method to detect data outliers:

[0021] Among them, is the current data point, is the data mean, is the standard deviation. When the value exceeds a certain threshold, the data can be regarded as an outlier.

[0022] Data conversion is performed using the A / D conversion formula:

[0023] Among them, is the digital output value, is the input analog signal, 、 is the measurable voltage range, and n is the quantization bit number.

[0024] The determination of the oil quality is based on the oil quality determination model. The determination model classifies the oil quality based on the machine learning model of the support vector machine. The training formula of its training model is

[0025] This formula takes minimizing the interval as the theme and also considers the penalty term for classification errors.

[0026] Step 4, Result display and notification: Convert the processed data in Step 3 and display it on the in-vehicle display screen. At the same time, when the monitoring result is an outlier, send a warning notification; Among them, the warning notification is based on the threshold judgment model to monitor the oil state in real time. The threshold judgment model is:

[0027] If the monitoring parameter exceeds the set threshold, issue a warning.

[0028] Step 5, Remote service and cloud synchronization: After uploading the final data to the cloud, the cloud server uses advanced data analysis and machine learning algorithms to deeply analyze the received data to predict future maintenance requirements and optimize the oil change cycle; The cloud data analysis model uses the regression analysis model to predict maintenance requirements: Linear regression formula:

[0029] Among them, is the maintenance requirement to be predicted, is the influencing factor, is the regression coefficient, is the error term.

[0030] Machine learning algorithm: Use the long short-term memory network for time series prediction to optimize the oil change cycle:

[0031] Among them, is the current state, Is the current input.

[0032] Specifically, the acquisition circuit board is connected with four connecting wires, namely two power lines and two signal lines. The signal lines are connected to the vehicle control system through CAN, and the power lines are respectively connected to the inverter module and the capacitor electrode plate. The inverter module is connected to the vehicle power supply, that is, a 24V inverter is connected using the power line, the inverter is connected to the power supply, and the signal line CAN is connected to the vehicle control system without affecting the use of the control system. The data is parsed and transmitted to the screen through the control system, and the status of the oil fluid, whether it needs to be replaced, will be displayed on the screen.

[0033] The capacitor electrode plate acquisition system in step 3 completes the real-time monitoring and data transmission of the oil fluid data inside the oil tank based on the signal transmission module and the real-time monitoring module. The software system built into the vehicle control system in step 3 completes data processing and analysis based on the signal processing module and the working condition determination module. Step 4 performs data display and warning notification based on the display information module and the warning module in the software system built into the vehicle control system.

[0034] The preparation stage for the above steps includes: Equipment installation: Install capacitor electrode plates in the lubrication system of the vehicle, and these electrode plates can sense the change in the properties of the lubricating oil. Hardware configuration: Connect the capacitor electrode plates to a control unit. The control unit contains necessary electronic components, including a signal amplifier and a data processor. The data collection stage includes: Real-time monitoring: During the vehicle's driving process, the capacitor electrode plates real-time monitor the status of the lubricating oil and transmit the data to the control unit through the CAN bus.

[0035] Data transmission: The control unit receives the analog signal from the electrode plates and converts it into a digital signal for subsequent processing. The data processing and analysis stage includes: Signal processing: The digital signal is analyzed within the control unit to identify the quality and status of the lubricating oil.

[0036] Working condition determination: Determine the current driving working condition according to the vehicle's driving state information (such as vehicle speed, engine load, etc.). The result display and notification stage is specifically: Display information: The processed data and the status of the lubricating oil are real-time displayed to the driver through the vehicle's built-in display screen or other visual interfaces.

[0037] Warning system: If the abnormal status of the lubricating oil is detected, the system will remind the driver through visual and sound warnings. The remote service and cloud synchronization stage is specifically: Data upload: Regularly or according to set conditions, upload the collected data to the cloud server.

[0038] Remote access and notification: The driver can view the fluid status through a smartphone application and receive maintenance reminders when necessary.

[0039] Data analysis and prediction: The cloud server uses advanced data analysis and machine learning algorithms to deeply analyze the received data to predict future maintenance needs and optimize the fluid replacement cycle; At the same time, during the cloud synchronization process, user feedback and system updates will also be carried out based on this data information, specifically: User feedback mechanism: The driver can provide feedback through the application to help improve system performance.

[0040] Software update: The system can be remotely updated to include the latest improvements and feature enhancements.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online monitoring system for automotive oil, comprising a collection device, characterized in that: The acquisition device includes a capacitor electrode sheet acquisition system and an inverter module. The positive and negative electrodes of the acquisition device are connected to the oil tank to collect data on the oil inside the oil tank. The capacitor electrode sheet acquisition system is electrically connected to the inverter module. The inverter module is electrically connected to a power supply. The acquisition device is connected to two signal lines, and the two signal lines connect the capacitor electrode sheet acquisition system to the vehicle control system in the vehicle-mounted Tobx through the Can protocol.

2. The vehicle oil online monitoring system according to claim 1, characterized in that: The specific steps include: Step 1. Start: Equipment installation and configuration: first install the acquisition equipment and connect it to the power supply, then connect the capacitive electrode acquisition system to the vehicle control system; Step 2: Data collection: Use the capacitive electrode acquisition system to collect oil data inside the oil tank, including current flow status and current oil contamination data; Step 3: Data processing and analysis: The data information collected in step 2 is preliminarily processed based on the built-in acquisition board of the capacitance electrode acquisition system, including data cleaning and digital-to-analog conversion; then the preliminarily processed signal is transmitted to the vehicle control system, the signal is processed based on the built-in software system of the vehicle control system, and the oil quality and state are determined based on the processed data; Step 4: Result display and notification: The data processed in step 3 is converted and displayed on the vehicle display screen, and an early warning notification is sent when the monitoring result is in an abnormal value; Step 5: Synchronize remote services with the cloud: After uploading the final data to the cloud, the cloud server uses advanced data analysis and machine learning algorithms to conduct in-depth analysis of the received data to predict future maintenance needs and optimize the oil change cycle.

3. The vehicle oil online monitoring system according to claim 1, characterized in that: The acquisition device consists of a shell, a capacitor electrode sheet and a collection circuit board. The capacitor electrode sheet acquisition system is arranged in the collection circuit board. The inverter module is embedded in the shell and electrically connected to the collection circuit board. The capacitor electrode sheet is electrically connected to the collection circuit board, and the capacitor electrode sheet is in contact with the oil inside the oil tank through the positive and negative electrodes to acquire and collect data.

4. The vehicle oil online monitoring system according to claim 3, characterized in that: The acquisition circuit board is connected to four connecting wires, namely two power lines and two signal lines, wherein the signal lines are connected to the vehicle control system via CAN, and the power lines are respectively connected to the inverter module and the capacitor electrode sheet, and the inverter module is connected to the vehicle power supply.

5. The vehicle oil online monitoring system according to claim 2, characterized in that: The capacitance electrode acquisition system in step 3 completes the real-time monitoring and data transmission of the oil data inside the oil tank based on the signal transmission module and the real-time monitoring module.

6. The vehicle oil online monitoring system according to claim 2, characterized in that: The software system built into the vehicle control system in step 3 completes data processing and analysis based on the signal processing module and the operating condition determination module.

7. The vehicle oil online monitoring system according to claim 2, characterized in that: The step 4 performs data display and warning notification based on the display information module and the warning module in the software system built into the automobile control system.

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