Vehicle refueling safety control system and method based on station cooperation

Abstract

The invention relates to the field of intelligent network connection automobile safety technology and gas station intelligent hardware crossing technology, which comprises a master control system, and the master control system comprises a vehicle-mounted subsystem and a gas station control system. The vehicle-mounted subsystem comprises a vehicle-mounted communication unit, a vehicle-mounted control unit, a starting blocking module, an oil product information storage unit and an intelligent oil tank, and the invention discloses a vehicle refueling safety control system and method based on station cooperation. When refueling is carried out, a vehicle ignition circuit is physically cut off from the hardware level, insurmountable electrical isolation is formed, it is ensured that even if a driver carries out misoperation, an engine is not likely to be started, the risk of fire disasters caused by electric sparks generated by mistaken starting is fundamentally eliminated, and the safety performance of the vehicle is improved. And the uncertainty of complete dependence on people in the traditional scheme is converted into reliable engineering guarantee.

Description

Technical Field

[0001] This invention relates to the intersection of intelligent connected vehicle safety technology and smart hardware for gas stations, and more specifically to a vehicle refueling safety control system and method based on station collaboration. Background Technology

[0002] Refueling a vehicle is a frequent daily activity for car owners, and its safety is of paramount importance. However, the current refueling process, which largely relies on manual operation, has several technical flaws and safety hazards, mainly in the following three aspects:

[0003] First, there is a serious risk of accidental vehicle starting during refueling. Drivers may start the engine due to habit or negligence. The electric sparks generated during operation can easily cause a fire or even an explosion in the dense oil and gas environment of a gas station. Current technical solutions rely entirely on the subjective awareness of personnel and cannot fundamentally eliminate the catastrophic consequences that may result from accidental starting. Second, the problem of engine damage caused by adding the wrong type of fuel has been a long-standing issue. Currently, fuel matching mainly relies on visual markings on the refueling nozzle and the driver's self-identification, lacking a system-level automated verification method.

[0004] Third, the reliability of the connection status detection between the fuel nozzle and the fuel tank opening is insufficient. Traditional fuel nozzles rely on mechanical buckles and simple micro switches to determine the connection. This method has low detection accuracy and is susceptible to mechanical wear and fatigue. It cannot reliably determine whether the fuel nozzle is fully inserted and reliably locked. In addition, when faced with emergencies such as abnormal pulling of the fuel nozzle (e.g., the vehicle drives away without removing the nozzle, or a person accidentally trips over the fuel line), the existing system lacks a fast-response automatic shutdown and protection mechanism.

[0005] Therefore, there is an urgent need for a vehicle refueling safety control system and method based on station collaboration to solve the aforementioned technical problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a vehicle refueling safety control system and method based on station cooperation to solve the problems existing in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a vehicle refueling safety control system based on station collaboration, comprising a main control system, wherein the main control system includes an on-board subsystem and a refueling station control system;

[0008] The vehicle subsystem includes an on-board communication unit, an on-board control unit, a start-stop module, a fuel information storage unit, and a smart fuel tank;

[0009] The gas station control system includes a gas station communication unit, a gas station control unit, a smart fuel nozzle, a fuel nozzle electromagnetic lock, and an emergency valve module;

[0010] The vehicle-mounted subsystem communicates with the gas station control system, and the vehicle-mounted subsystem and the gas station control system are configured as follows:

[0011] The standard oil information in the oil information storage unit is sent to the gas station control unit for comparison. If the oil information does not match, the oil gun electromagnetic lock is controlled to lock the smart oil gun.

[0012] When the gas station control unit determines the fuel type compatibility, it physically cuts off the vehicle's ignition circuit by activating the blocking module. After refueling is completed, the blocking module is activated again to restart and restore the vehicle's ignition circuit.

[0013] The connection status of the fuel nozzle and fuel tank is determined by the self-test of the intelligent fuel tank and intelligent fuel nozzle.

[0014] When the smart fuel tank and smart fuel nozzle are in a normal connection state, the gas station control unit will operate the smart fuel nozzle to perform normal refueling operations.

[0015] If the smart fuel tank and smart fuel nozzle are in an abnormal connection state, the emergency valve module will shut off the fuel line valve inside the smart fuel nozzle, and at the same time the vehicle control unit and the gas station control unit will control the vehicle to send a warning signal.

[0016] Preferably, the start-stop module includes a normally closed relay controlled by the vehicle control unit. The normally closed relay is connected in series in the vehicle's ignition circuit to achieve physical disconnection and restart of the vehicle.

[0017] Preferably, the front end of the intelligent oil gun is provided with an oil gun connection end, wherein the oil gun connection end integrates a TRS terminal;

[0018] The smart fuel tank has an on-board connection terminal near its fuel tank cap area, and the on-board connection terminal is equipped with a ring electrode array that matches the TRS terminal.

[0019] The self-test process for the smart fuel tank and smart fuel nozzle is as follows: When the smart fuel nozzle is inserted into the smart fuel tank, the connection status is determined by detecting the resistance value of the connection circuit formed between the TRS terminal and the ring electrode array and sending it to the vehicle control unit.

[0020] Preferably, the vehicle unit has a preset threshold value. When the resistance value is lower than the preset threshold value, it is determined to be a normal connection state. When the resistance value is higher than or equal to the preset threshold value, it is determined to be an abnormal connection state.

[0021] Preferably, the smart oil gun also integrates a MEMS pressure sensor to detect the lateral tension of the oil pipe and generate corresponding pressure data;

[0022] The vehicle-mounted unit has a safety threshold range set inside. When the pressure data exceeds the safety threshold range, the abnormal connection state processing logic is triggered.

[0023] Preferably, the standard oil information stored in the oil information storage unit includes gasoline grade and diesel type;

[0024] The comparison of fuel information is completed by the vehicle control unit and the gas station control unit through a communication mechanism before the refueling process begins;

[0025] The communication mechanism consists of both the gas station communication unit and the vehicle-mounted communication unit.

[0026] Preferably, the vehicle control unit is the HarmonyOS operating system, which integrates vehicle control functions.

[0027] Preferably, the warning signal feedback includes at least one of the following: an audible and visual alarm triggered inside the vehicle, an audible and visual alarm triggered at the gas station, and an alarm notification sent to the gas station's back-end management system.

[0028] A vehicle refueling safety control method based on station collaboration, applied to a system like this, includes the following steps:

[0029] Step 1: When the vehicle enters the communication range of the gas station, the on-board subsystem establishes a communication connection with the gas station control system;

[0030] If the communication connection time exceeds the preset time or the verification fails, the blocking module will be activated to physically cut off the vehicle's ignition circuit and display "Communication Failure" on the vehicle's central control screen.

[0031] Step 2: Send the standard oil information in the oil information storage unit to the gas station control unit for comparison;

[0032] If the oil information does not match, the control oil gun electromagnetic lock will lock the smart oil gun;

[0033] If the fuel information matches, the vehicle control unit physically cuts off the vehicle's ignition circuit by activating the blocking module.

[0034] Step 3: Insert the smart fuel nozzle into the smart fuel tank and determine the connection status by detecting the resistance value of the connection loop formed between the TRS terminal and the ring electrode array.

[0035] If the connection status is abnormal, the emergency valve module will immediately close the oil circuit valve inside the smart oil gun and trigger a warning signal feedback.

[0036] If the connection status is normal, the gas station control unit will operate the smart fuel nozzle to perform normal refueling operations.

[0037] Step 4: During the refueling process, monitor the lateral tension of the oil pipe in real time. If the tension data exceeds the safety threshold range, trigger the abnormal connection status processing logic.

[0038] After refueling, activate the blocking module to restart and restore the vehicle's ignition circuit.

[0039] The technical effects and advantages of this invention are as follows:

[0040] 1. This invention controls a normally closed relay through an on-board control unit to physically cut off the vehicle's ignition circuit at the hardware level during refueling, forming an insurmountable electrical isolation. This ensures that even if the driver makes a mistake, it is impossible to start the engine, fundamentally eliminating the risk of fire caused by electrical sparks generated by accidental starting. It transforms the uncertainty of traditional solutions that rely entirely on human intervention into a reliable engineering guarantee.

[0041] 2. This invention achieves 100% automatic interception of incorrect oil products through automated oil information verification and hardware interlocking of the oil gun electromagnetic lock, completely avoiding engine damage caused by human identification errors (the error rate of traditional solutions is >8%), and providing users with absolutely reliable protection.

[0042] 3. This invention abandons the easily failed mechanical switch and innovatively adopts an electrical contact detection method between the TRS terminal and the ring electrode array. By quantifying the resistance value, the connection status is accurately determined. This electronic detection method has an extremely low failure rate. Compared with the traditional mechanical switch with a failure rate as high as 15%, the reliability has achieved a qualitative leap.

[0043] 4. This invention integrates a MEMS pressure sensor to monitor the oil pipe tension in real time. The system can immediately trigger the emergency valve shut-off module the instant abnormal tension is detected (<0.5 seconds) to quickly cut off the oil circuit. Its response speed far exceeds the more than 3 seconds required for manual discovery and handling of danger in traditional solutions, which greatly reduces the risk of fuel leakage and the potential losses. Attached Figure Description

[0044] Figure 1 This is a flowchart of the overall control system shown in this invention;

[0045] Figure 2 This is a flowchart of the vehicle refueling safety control method shown in this invention. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The vehicle refueling safety control system and method based on station cooperation involved in the present invention are not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Reference Figure 1As shown, the present invention provides a vehicle refueling safety control system based on station collaboration, including a central control system, wherein the central control system includes an on-board subsystem and a refueling station control system.

[0048] The vehicle subsystem includes an on-board communication unit, an on-board control unit, a start-stop module, a fuel information storage unit, and a smart fuel tank;

[0049] The gas station control system includes a gas station communication unit, a gas station control unit, a smart fuel nozzle, a fuel nozzle electromagnetic lock, and an emergency valve module;

[0050] The vehicle-mounted subsystem communicates with the gas station control system, and the vehicle-mounted subsystem and the gas station control system are configured as follows:

[0051] The standard oil information in the oil information storage unit is sent to the gas station control unit for comparison. If the oil information does not match, the oil gun electromagnetic lock is controlled to lock the smart oil gun.

[0052] When the gas station control unit determines the fuel type compatibility, it physically cuts off the vehicle's ignition circuit by activating the blocking module. After refueling is completed, the blocking module is activated again to restart and restore the vehicle's ignition circuit.

[0053] The connection status of the fuel nozzle and fuel tank is determined by the self-test of the intelligent fuel tank and intelligent fuel nozzle.

[0054] When the smart fuel tank and smart fuel nozzle are in a normal connection state, the gas station control unit will operate the smart fuel nozzle to perform normal refueling operations.

[0055] If the smart fuel tank and smart fuel nozzle are in an abnormal connection state, the emergency valve module will shut off the fuel line valve inside the smart fuel nozzle, and at the same time the vehicle control unit and the gas station control unit will control the vehicle to send a warning signal.

[0056] Reference Figure 1 As shown, the present invention provides a vehicle refueling safety control system based on station cooperation. The start-stop module includes a normally closed relay controlled by the vehicle control unit. The normally closed relay is connected in series in the vehicle's ignition circuit to realize the physical disconnection and restart of the vehicle.

[0057] In this embodiment of the application, the core of the start-blocking module of the present invention lies in a normally closed relay, which is designed as a hardware-level, forced-execution safety switch in the vehicle ignition circuit.

[0058] The selection and connection method of relays:

[0059] Preferred type: To achieve high reliability and high current load capacity, the normally closed relay is preferably a single-pole single-throw (SPST) automotive-grade power relay with its coil voltage matched to the vehicle electrical system voltage (e.g., 12V or 24VDC), and the contact material should be able to withstand the high current surge during vehicle startup (e.g., continuous current capacity ≥50A).

[0060] Circuit connection: The normally closed contact of the relay is connected in series in the circuit between the vehicle's ignition switch and the starter motor. This means that in the default state where the relay coil is not energized, its contacts are closed, the vehicle's ignition circuit remains conductive, and the vehicle can start normally.

[0061] Control logic and drive circuit:

[0062] Control signal source: The relay coil is controlled by a general purpose input / output (GPIO) port of the vehicle control unit (e.g., the HarmonyOS system with integrated control logic) through a simple drive circuit;

[0063] Drive circuit design: The drive circuit may include an NPN bipolar transistor. The GPIO port of the vehicle control unit is connected to the base of the transistor and the transistor is switched on and off by a current-limiting resistor. The collector of the transistor is connected to one end of the relay coil, the emitter is grounded, and the other end of the relay coil is connected to the positive terminal of the vehicle battery.

[0064] Working principle:

[0065] Normal driving condition: The vehicle has not entered the refueling process. The GPIO port of the vehicle control unit outputs a low level. At this time, the NPN transistor is cut off, the relay coil circuit is broken, no current flows through the coil, and the relay keeps its normally closed contacts closed due to its physical characteristics. The ignition circuit is unobstructed, and the vehicle can be started at any time.

[0066] Refueling safety status: When the vehicle enters the gas station and establishes communication with the gas station control system to confirm the start of the refueling process, the vehicle control unit outputs a high-level signal to the GPIO port. This signal drives the NPN transistor to saturate and conduct, thereby forming a low-impedance ground path, energizing the relay coil. The coil generates a magnetic field, which drives the armature to move, overcoming the spring force and physically opening its normally closed contacts. This completely cuts off the current path from the ignition switch to the starter motor, achieving hardware-level isolation of the starting circuit. At this time, even if the driver accidentally turns the key or presses the start button, the starter motor cannot obtain any power, fundamentally eliminating the possibility of generating electric sparks.

[0067] Status recovery: When the refueling process is completely finished (the fuel dispenser confirms that the settlement is completed and the fuel nozzle has been returned to its position), the vehicle control unit sets the output of the GPIO port back to low level, the NPN transistor returns to the cut-off state, the relay coil is de-energized, the magnetic field disappears, the armature is reset under the action of the spring, the normally closed contact closes again, the vehicle ignition circuit is restored to smooth operation, and the vehicle can start normally.

[0068] The front end of the intelligent oil gun is equipped with an oil gun connection end, which integrates a TRS terminal.

[0069] The smart fuel tank has an on-board connection terminal near its fuel tank cap area, and the on-board connection terminal is equipped with a ring electrode array that matches the TRS terminal.

[0070] The self-test process for the smart fuel tank and smart fuel nozzle is as follows: When the smart fuel nozzle is inserted into the smart fuel tank, the connection status is determined by detecting the resistance value of the connection circuit formed between the TRS terminal and the ring electrode array and sending it to the vehicle control unit.

[0071] The vehicle unit has a preset threshold. When the resistance value is lower than the preset threshold, it is determined to be a normal connection state. When the resistance value is higher than or equal to the preset threshold, it is determined to be an abnormal connection state.

[0072] In this embodiment, the preset threshold is not a fixed value, but is determined through a set of scientific and systematic testing and analysis methods to ensure its reliability under various actual working conditions. The setting process mainly includes the following steps:

[0073] S1. Data Acquisition: Establish a normal connection sample library: In a standard laboratory environment and a simulated actual gas station environment (such as under different temperature and humidity conditions), perform at least several hundred to several thousand "intelligent fuel nozzle is correctly inserted into the intelligent fuel tank" operations. After each insertion, accurately measure and record the resistance value of the connection loop formed between the TRS terminal and the ring electrode array at this time, and collect all the measured values ​​to form a normal connection resistance dataset.

[0074] Establish an abnormal connection sample library: artificially create various typical abnormal connection states for smart fuel nozzles and smart fuel tanks, including but not limited to:

[0075] Incomplete insertion: The oil gun is only partially inserted and is in a critical jamming state;

[0076] Inclined insertion: There is a significant angular deviation between the fuel nozzle and the fuel tank opening;

[0077] Contact contamination: Applying a small amount of oil, dust, or water stains to the surface of the TRS terminal or ring electrode;

[0078] Measure and record the loop resistance values ​​under these conditions to form an abnormal connection resistance dataset.

[0079] S2. Determine the safety decision-making interval:

[0080] Determine the upper limit of the normal range: Perform statistical analysis on the normal connection resistance dataset and calculate its maximum value Rmax (to ensure fault tolerance, the 95th percentile or the average value plus three times the standard deviation can be taken as the upper limit of the normal range Rmax).

[0081] Determine the lower limit of the normal range: Analyze the abnormal connection resistance dataset and find its minimum value Rmin;

[0082] The preset threshold ranges from Rmin to Rmax.

[0083] The smart oil gun also integrates a MEMS pressure sensor to detect the lateral tension of the oil pipe and generate corresponding pressure data;

[0084] The vehicle-mounted unit has a safety threshold range set inside. When the pressure data exceeds the safety threshold range, the abnormal connection state processing logic is triggered.

[0085] In this embodiment, the safety threshold range used to determine whether the oil pipe has been abnormally stretched is determined through a systematic testing and analysis method to ensure that the system can accurately identify real dangers while avoiding false alarms. The process for setting the safety threshold range is as follows:

[0086] Data acquisition and operating condition simulation:

[0087] Establish a normal operation sample library: In real and simulated gas station environments, record the normal pressure dataset generated by MEMS pressure sensors during the entire refueling process (including actions such as picking up the fuel nozzle, inserting it, refueling, and pulling it out). This dataset covers the unavoidable normal shaking and slight touches during operation.

[0088] Establish an abnormal tensile force sample library: simulate and record typical abnormal tensile states in the following ways to form an abnormal tensile force dataset;

[0089] The abnormal vehicle pulling state is: simulated vehicle starting pull: with the oil gun inserted, the vehicle is moved forward at a very low speed (such as 0.5km / h), and the data is measured when the oil pipe is straightened until a dangerous tension is generated;

[0090] Simulated personnel tripping and pulling: The experimental device simulates the instantaneous, high-intensity impact pulling force on the oil pipeline when a person accidentally falls.

[0091] Analysis and determination of safety threshold range:

[0092] Determine the upper limit of the safety threshold Fmax: Perform statistical analysis on the normal stress dataset. In order to avoid normal operation being misjudged as abnormal, the upper limit of the safety threshold Fmax must be greater than the maximum value of the normal stress dataset (we calculate the standard deviation of the dataset and take "mean + 5 times standard deviation" as Fmax).

[0093] Safety threshold lower limit Fmin: From the abnormal tensile force dataset, find the minimum value among all simulated emergency data and determine this data as the safety threshold lower limit Fmin (the safety threshold lower limit Fmin is the slightest "abnormal" state that the system must identify).

[0094] The standard oil information stored in the oil information storage unit includes gasoline octane rating or diesel type;

[0095] The comparison of fuel information is completed by the vehicle control unit and the gas station control unit through a communication mechanism before the refueling process begins;

[0096] The communication mechanism consists of both the gas station communication unit and the vehicle-mounted communication unit.

[0097] The vehicle control unit uses the HarmonyOS operating system, which integrates vehicle control functions.

[0098] The warning signal feedback includes at least one of the following: an audible and visual alarm triggered inside the vehicle, an audible and visual alarm triggered at the gas station, and an alarm notification sent to the gas station's back-end management system.

[0099] Reference Figure 2 The present invention provides a vehicle refueling safety control method based on station collaboration, which is applied to a vehicle refueling safety control system based on station collaboration, and includes the following steps:

[0100] Step 1: When the vehicle enters the communication range of the gas station, the on-board subsystem establishes a communication connection with the gas station control system;

[0101] If the communication connection time exceeds the preset time or the verification fails, the blocking module will be activated to physically cut off the vehicle's ignition circuit and display "Communication Failure" on the vehicle's central control screen.

[0102] Step 2: Send the standard oil information in the oil information storage unit to the gas station control unit for comparison;

[0103] If the oil information does not match, the control oil gun electromagnetic lock will lock the smart oil gun;

[0104] If the fuel information matches, the vehicle control unit physically cuts off the vehicle's ignition circuit by activating the blocking module.

[0105] Step 3: Insert the smart fuel nozzle into the smart fuel tank and determine the connection status by detecting the resistance value of the connection loop formed between the TRS terminal and the ring electrode array.

[0106] If the connection status is abnormal, the emergency valve module will immediately close the oil circuit valve inside the smart oil gun and trigger a warning signal feedback.

[0107] If the connection status is normal, the gas station control unit will operate the smart fuel nozzle to perform normal refueling operations.

[0108] Step 4: During the refueling process, monitor the lateral tension of the oil pipe in real time. If the tension data exceeds the safety threshold range, trigger the abnormal connection status processing logic.

[0109] After refueling, activate the blocking module to restart and restore the vehicle's ignition circuit.

[0110] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0111] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here;

[0112] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle refueling safety control system based on station collaboration, characterized in that, This includes a central control system, which comprises vehicle-mounted subsystems and a gas station control system. The vehicle subsystem includes a vehicle communication unit, a vehicle control unit, a start-stop module, a fuel information storage unit, and a smart fuel tank. The gas station control system includes a gas station communication unit, a gas station control unit, an intelligent fuel nozzle, a fuel nozzle electromagnetic lock, and an emergency valve module. The vehicle-mounted subsystem is communicatively connected to the gas station control system, wherein the vehicle-mounted subsystem and the gas station control system are configured as follows: The standard oil information in the oil information storage unit is sent to the gas station control unit for comparison. If the oil information does not match, the oil gun electromagnetic lock is controlled to lock the smart oil gun. When the gas station control unit determines that the fuel is compatible, it physically cuts off the vehicle's ignition circuit through the start-stop module. After refueling is completed, the start-stop module restarts and restores the vehicle's ignition circuit. The connection status of the fuel nozzle and fuel tank is determined by the self-test of the intelligent fuel tank and intelligent fuel nozzle. When the smart fuel tank and smart fuel nozzle are in a normal connection state, the gas station control unit will operate the smart fuel nozzle to perform normal refueling operations. If the smart fuel tank and smart fuel nozzle are in an abnormal connection state, the emergency valve module will shut off the fuel line valve inside the smart fuel nozzle, and at the same time the vehicle control unit and the gas station control unit will control the vehicle to send a warning signal.

2. The vehicle refueling safety control system based on station collaboration according to claim 1, characterized in that: The start-stop module includes a normally closed relay controlled by the vehicle control unit. The normally closed relay is connected in series in the vehicle's ignition circuit and is used to physically disconnect and restart the vehicle.

3. The vehicle refueling safety control system based on station collaboration according to claim 1, characterized in that: The front end of the intelligent oil gun is provided with an oil gun connection end, wherein the oil gun connection end integrates a TRS terminal. The intelligent fuel tank has a vehicle connection terminal near its fuel tank cap area, and the vehicle connection terminal is provided with a ring electrode array that matches the TRS terminal. The self-test process of the intelligent fuel tank and intelligent fuel nozzle is as follows: when the intelligent fuel nozzle is inserted into the intelligent fuel tank, the connection status is determined by detecting the resistance value of the connection circuit formed between the TRS terminal and the ring electrode array and transmitting it to the vehicle control unit.

4. The vehicle refueling safety control system based on station collaboration according to claim 3, characterized in that: The vehicle unit has a preset threshold value. When the resistance value is lower than the preset threshold value, it is determined to be a normal connection state. When the resistance value is higher than or equal to the preset threshold value, it is determined to be an abnormal connection state.

5. The vehicle refueling safety control system based on station collaboration according to claim 1, characterized in that: The intelligent oil gun is also equipped with a MEMS pressure sensor to detect the lateral tension of the oil pipe and generate corresponding pressure data. The vehicle-mounted unit has a safety threshold range set inside. When the pressure data exceeds the safety threshold range, the processing logic for the abnormal connection state is triggered.

6. The vehicle refueling safety control system based on station collaboration according to claim 1, characterized in that: The standard oil information stored in the oil information storage unit includes gasoline grade and diesel type; The comparison of the fuel information is completed by the vehicle control unit and the gas station control unit through a communication mechanism before the refueling process begins; The communication mechanism consists of both the gas station communication unit and the vehicle-mounted communication unit.

7. The vehicle refueling safety control system based on station collaboration according to claim 1, characterized in that: The vehicle control unit is based on the HarmonyOS operating system, which integrates vehicle control functions.

8. The vehicle refueling safety control system based on station collaboration according to claim 1, characterized in that: The warning signal feedback includes at least one of the following: an audible and visual alarm triggered inside the vehicle, an audible and visual alarm triggered at the gas station, and an alarm notification sent to the gas station's back-end management system.

9. A vehicle refueling safety control method based on station collaboration, characterized in that, Applied to the system as described in any one of claims 1-8, the method includes the following steps: Step 1: When the vehicle enters the communication range of the gas station, the on-board subsystem establishes a communication connection with the gas station control system; If the communication connection time exceeds the preset time or the verification fails, the blocking module will be activated to physically cut off the vehicle's ignition circuit and display "Communication Failure" on the vehicle's central control screen. Step 2: Send the standard oil information in the oil information storage unit to the gas station control unit for comparison; If the oil information does not match, the oil gun electromagnetic lock will be controlled to lock the smart oil gun. If the fuel information matches, the vehicle control unit physically cuts off the vehicle's ignition circuit through the start-stop module. Step 3: Insert the smart fuel nozzle into the smart fuel tank and determine the connection status by detecting the resistance value of the connection loop formed between the TRS terminal and the ring electrode array. If the connection status is abnormal, the emergency valve module will immediately close the oil circuit valve inside the smart oil gun and trigger a warning signal feedback. If the connection status is normal, the gas station control unit will operate the smart fuel nozzle to perform normal refueling operations. Step 4: During the refueling process, monitor the lateral tension of the oil pipe in real time. If the tension data exceeds the safety threshold range, trigger the processing logic for the abnormal connection state. After refueling is completed, the start-stop module restarts and restores the vehicle's ignition circuit.

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