Oil gas recovery control method and control system based on pressure sensing oil gun

Abstract

The invention relates to the technical field of oil gas recovery control, in particular to an oil gas recovery control method and system based on a pressure sensing oil gun, and the method comprises the steps: obtaining the corresponding oil tank pressure of a target vehicle at the current oil filling moment, and determining the vehicle type of the target vehicle based on the oil tank pressure, the vehicle type comprises a type comprising a vehicle-mounted oil and gas recovery function and a type not comprising the vehicle-mounted oil and gas recovery function; a target gas-liquid ratio monitoring standard of the target vehicle is determined based on the vehicle type, and the actual gas-liquid ratio generated in the refueling process of the target vehicle is monitored based on the target gas-liquid ratio monitoring standard; and when the actual gas-liquid ratio does not meet the target gas-liquid ratio monitoring standard, generating early warning information. According to the invention, the timeliness and accuracy of monitoring whether an abnormal condition exists in the oil gas recovery process can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of oil and gas recovery control, and in particular to an oil and gas recovery control method and control system based on a pressure sensing fueling gun. Background Art

[0002] Since gasoline is a volatile liquid, volatility is one of its main physical properties. Therefore, when refueling a vehicle at a gas station, more oil and gas may be produced due to the volatilization of gasoline. However, oil and gas are flammable and explosive substances. If the concentration of oil and gas reaches the explosion limit, fire or explosion accidents are likely to occur when encountering open flames or static electricity. Therefore, it is very necessary to recover oil and gas during the vehicle refueling process.

[0003] In the related art, sensors installed in the gas pump are generally used to monitor the gas-liquid ratio during the refueling process in real time, and timely warn when the gas-liquid ratio is abnormal. However, due to the different configurations of different vehicles, if a fixed recovery control method is used to monitor the oil and gas recovery status of different vehicles during the refueling process, it may affect the timeliness and accuracy of monitoring whether there are abnormal conditions in the oil and gas recovery process based on the gas-liquid ratio. Summary of the invention

[0004] In order to improve the timeliness and accuracy of monitoring whether there are abnormal conditions during the oil and gas recovery process, the present application provides an oil and gas recovery control method and control system based on a pressure-sensing fueling gun.

[0005] In the first aspect, the present application provides a method for controlling oil and gas recovery based on a pressure sensing fueling gun, which adopts the following technical solution: A method for controlling oil and gas recovery based on a pressure sensing fueling gun, comprising: Obtaining a fuel tank pressure corresponding to a target vehicle at a current refueling time, and determining a vehicle type of the target vehicle based on the fuel tank pressure, wherein the vehicle type includes a type including an on-board fuel gas recovery function and a type not including an on-board fuel gas recovery function; Determining a target gas-liquid ratio monitoring standard for the target vehicle based on the vehicle type, and monitoring an actual gas-liquid ratio generated by the target vehicle during refueling based on the target gas-liquid ratio monitoring standard; When the actual gas-liquid ratio does not meet the target gas-liquid ratio monitoring standard, an early warning message is generated.

[0006] By adopting the above technical scheme, the configuration of the target vehicle is determined by analyzing the fuel tank pressure corresponding to the target vehicle at the time of refueling, that is, by analyzing the fuel tank pressure of the target vehicle at the time of refueling, it is judged whether the target vehicle includes an on-board oil and gas recovery function, and then the corresponding gas-liquid ratio monitoring standard is determined based on the vehicle type, instead of adopting a fixed monitoring standard to monitor whether the gas-liquid ratio of the vehicle during refueling is abnormal. This differentiated monitoring standard facilitates accurate reflection of the oil and gas recovery needs of different vehicle types during refueling, thereby facilitating the improvement of timeliness and accuracy in monitoring whether there are abnormal conditions during the oil and gas recovery process.

[0007] In a possible implementation, when the vehicle type of the target vehicle is a type that includes an on-board oil and gas recovery function, the method further includes: Obtaining the fuel tank information and refueling environment temperature corresponding to the target vehicle within a first preset time period, wherein the fuel tank information includes a refueling rate, a refueling amount, and a gasoline type; Based on the fuel tank information, the refueling environment information and the simulated vehicle model corresponding to the target vehicle, obtaining a simulated oil and gas volume corresponding to the target vehicle within a second preset time period; Determining the on-board recovery power of the target vehicle based on the fuel tank pressure corresponding to the target vehicle at the current refueling time; Determining the recovery power to be added corresponding to the second preset time period based on the on-board recovery power and the simulated oil and gas volume corresponding to the target vehicle in the second preset time period; The predicted operating load of the vacuum pump in the oil and gas recovery separator within the second preset time period is determined based on the recovery power to be added.

[0008] By adopting the above technical scheme, the amount of oil and gas that may be generated by the target vehicle in the future is predicted based on the fuel tank information and the refueling environment information combined with the simulated vehicle model of the target vehicle, which helps to plan the operation strategy during the oil and gas recovery process in advance and avoid excessive oil and gas emissions. Since the target vehicle has an on-board oil and gas recovery function, it is convenient to judge whether the target vehicle can recover oil and gas by itself by analyzing the on-board recovery power and the amount of oil and gas that may be generated in the future. It is also convenient to allocate and assist in the recovery of resources on demand, that is, appropriately adjust the operating load of the vacuum pump in the oil and gas recovery separator to avoid the vacuum pump being in a high-load operation state all the time. While avoiding wasting recovery resources, it is also convenient to extend the service life of the vacuum pump.

[0009] In one possible implementation, the method further includes: Acquire the actual fuel tank information corresponding to the target vehicle within the second preset time period and the simulated fuel tank information corresponding to the simulated fuel and gas volume; comparing the actual fuel tank information with the simulated fuel tank information to determine difference information; An operation load adjustment value is determined based on the difference information, and the predicted operation load of the vacuum pump is adjusted based on the operation load adjustment value.

[0010] By adopting the above technical solution, by obtaining the actual fuel tank information of the target vehicle within the second preset time period and comparing it with the simulated fuel tank information corresponding to the simulated oil and gas volume, the difference between the two can be accurately located. The comparison helps to identify the deviation between the simulation model and the actual operation, thereby facilitating the disclosure of potential problems or sources of errors. Finally, the operating load adjustment value is determined based on the difference information, and the predicted operating load of the vacuum pump is adjusted based on this, so as to further improve the accuracy of adjusting the operating load of the vacuum pump.

[0011] In one possible implementation, the method further includes: When the difference information includes preset difference parameters, the difference information is determined as the difference information of interest, and the abnormal occurrence time of each preset difference parameter within the preset observation time period and the corresponding abnormal duration are recorded; The abnormal frequency is determined based on all the abnormal occurrence moments, and the total abnormal duration is determined based on the abnormal duration corresponding to each preset difference parameter. When the abnormal frequency is higher than the preset abnormal frequency, or the total abnormal duration is higher than the preset duration, abnormal warning information is generated.

[0012] By adopting the above technical solution, by calculating the abnormal frequency and total abnormal duration, it is convenient to quantitatively evaluate the abnormal conditions of the focus difference information, so as to intuitively reflect the specific abnormal conditions. In addition, this timely early warning mechanism helps relevant users to promptly discover and deal with potential risks, thereby facilitating the avoidance or reduction of losses.

[0013] In one possible implementation, the method further includes: Acquire actual refueling parameter information and actual refueling environment information of the target vehicle during the refueling process, and determine a real-time gas-liquid flow trajectory and a real-time gas-liquid ratio based on the actual refueling parameter information, the actual refueling environment information and a simulated fuel tank model corresponding to the target vehicle; Determine the real-time gas-liquid ratio and the preset display mapping relationship based on the real-time gas-liquid ratio and the real-time gas-liquid display color corresponding to the real-time gas-liquid ratio, wherein the preset display mapping relationship is the corresponding relationship between the real-time gas-liquid ratio and the real-time gas-liquid display color; A real-time gas-liquid distribution map is determined based on the real-time gas-liquid flow trajectory, the real-time gas-liquid ratio, and the real-time gas-liquid display color.

[0014] By adopting the above technical solution, by combining the actual refueling parameter information and the actual refueling environment information, the flow process of gasoline in the fuel tank is simulated, and the distribution of oil and gas in the fuel tank is simulated. By setting different display colors for different real-time gas and liquid, relevant users can intuitively understand the oil and gas status in the fuel tank by viewing the real-time gas-liquid distribution diagram.

[0015] In a possible implementation, when a refueling completion instruction is detected, the method further includes: Obtaining the refueling duration and refueling amount corresponding to the refueling completion instruction, and determining the oil and gas residual value based on the refueling duration and refueling amount; When the oil and gas residual value is higher than a preset residual value, determining a continuation operation parameter based on the oil and gas residual value, the continuation operation parameter including a continuation operation duration and a continuation operation load; Based on the continuous operation parameters, the vacuum pump in the oil and gas recovery separator is controlled to perform continuous operation.

[0016] By adopting the above technical solution, the continued operation parameters are further determined according to the oil and gas residual value, so as to ensure that the vacuum pump can operate in the optimal manner, that is, it is convenient to reduce the waste of recovery resources when the vacuum pump recovers the residual oil and gas in the refueling gun or the refueling gun pipeline with a higher recovery efficiency.

[0017] In the second aspect, the present application provides an oil and gas recovery control system based on a pressure sensing fueling gun, which adopts the following technical solution: A fuel gas recovery control system based on a pressure sensing fueling gun, comprising a fueling gun equipped with a pressure sensing sensor, a monitoring component and an alarm component, wherein the monitoring component and the alarm component are both arranged in a fueling machine, and the fueling gun equipped with the pressure sensing sensor can exchange information with the fueling machine; The refueling gun equipped with a pressure sensing sensor is used to obtain the corresponding fuel tank pressure of the target vehicle at the current refueling time; The monitoring component is used to determine the vehicle type of the target vehicle after analyzing the fuel tank pressure, and after determining the target gas-liquid ratio monitoring standard based on the determined vehicle type, monitor the actual gas-liquid ratio generated by the target vehicle during the refueling process based on the target gas-liquid ratio monitoring standard; The alarm component is used to receive the monitoring results output by the monitoring component and generate early warning information based on the monitoring results.

[0018] In a third aspect, the present application provides an oil and gas recovery control device, which adopts the following technical solution: An oil and gas recovery control device, the oil and gas recovery control device comprising: at least one processor; Memory; At least one application, wherein the at least one application is stored in a memory and configured to be executed by at least one processor, and the at least one application is configured to: execute the above-mentioned oil and gas recovery control method based on the pressure sensing fueling gun.

[0019] In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solution: A computer-readable storage medium includes: a computer program that can be loaded by a processor and execute the above-mentioned oil and gas recovery control method based on a pressure-sensing fueling gun.

[0020] In a fifth aspect, the present application provides a computer program product, which adopts the following technical solution: A computer program product includes a computer program, and when the computer program is executed by a processor, the oil and gas recovery control method based on the pressure sensing fueling gun is implemented.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: The configuration of the target vehicle is determined by analyzing the fuel tank pressure of the target vehicle at the time of refueling, that is, by analyzing the fuel tank pressure of the target vehicle at the time of refueling, it is judged whether the target vehicle includes an on-board oil and gas recovery function, and then the corresponding gas-liquid ratio monitoring standard is determined based on the vehicle type, instead of using a fixed monitoring standard to monitor whether the gas-liquid ratio of the vehicle during refueling is abnormal. This differentiated monitoring standard facilitates accurate reflection of the oil and gas recovery needs of different vehicle types during refueling, thereby facilitating the improvement of timeliness and accuracy in monitoring whether there are abnormal conditions during the oil and gas recovery process; According to the fuel tank information and refueling environment information combined with the simulated vehicle model of the target vehicle, the amount of oil and gas that may be generated by the target vehicle in the future is predicted, which helps to plan the operation strategy during the oil and gas recovery process in advance and avoid excessive oil and gas emissions. Since the target vehicle has an on-board oil and gas recovery function, by analyzing the on-board recovery power and the amount of oil and gas that may be generated in the future, it is convenient to judge whether the target vehicle can recover oil and gas by itself, and it is also convenient to allocate and assist in the recovery of resources on demand, that is, appropriately adjust the operating load of the vacuum pump in the oil and gas recovery separator to avoid the vacuum pump being in a high-load operation state all the time. While avoiding wasting recovery resources, it is also convenient to extend the service life of the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the architecture of an oil and gas recovery control system based on a pressure sensing fueling gun in an embodiment of the present application; Figure 2 It is a flow chart of a method for controlling oil and gas recovery based on a pressure sensing fueling gun in an embodiment of the present application; Figure 3 It is a flow chart of a vacuum pump adjustment method in an embodiment of the present application; Figure 4 It is a structural schematic diagram of an oil and gas recovery control device in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The following is combined with Figures 1 to 4 This application is described in further detail.

[0024] After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of this application.

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] It should be noted that in the optional embodiments of the present application, the object information and other related data involved, when the embodiments in the present application are applied to specific products or technologies, need to obtain the permission or consent of the object, and the collection, use and processing of the relevant data need to comply with the relevant laws, regulations and standards of the relevant countries and regions. In other words, if the embodiments of the present application involve data related to the object, it needs to be obtained with the authorization and consent of the object, the authorization and consent of the relevant departments, and in compliance with the relevant laws, regulations and standards of the country and region. If personal information is involved in the embodiments, the acquisition of all personal information needs to obtain the consent of the individual. If sensitive information is involved, the separate consent of the information subject needs to be obtained. The embodiments also need to be implemented with the authorization and consent of the object.

[0027] For ease of understanding, the following is an introduction to the system framework used in the technical solution of this application. Please refer to Figure 1 , Figure 1 : is a schematic diagram of the architecture of an oil and gas recovery control system based on a pressure sensing fueling gun in an embodiment of the present application, including: A refueling gun equipped with a pressure sensing sensor, a monitoring component and an alarm component, wherein the monitoring component and the alarm component are both arranged in the refueling machine, and the refueling gun equipped with the pressure sensing sensor can exchange information with the refueling machine; the refueling gun equipped with the pressure sensing sensor is used to obtain the fuel tank pressure corresponding to the target vehicle at the current refueling time; the monitoring component is used to determine the vehicle type of the target vehicle after analyzing the fuel tank pressure, and after determining the target gas-liquid ratio monitoring standard based on the determined vehicle type, the actual gas-liquid ratio generated by the target vehicle during the refueling process is monitored based on the target gas-liquid ratio monitoring standard; the alarm component is used to receive the monitoring results output by the monitoring component, and generate early warning information based on the monitoring results.

[0028] Specifically, the embodiment of the present application provides an oil and gas recovery control method based on a pressure sensing fueling gun, which is executed by an oil and gas recovery control device, which can be a server or a terminal device, wherein the server can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services. The terminal device can be a smart phone, a tablet computer, a laptop computer, a desktop computer, etc., but is not limited thereto. The terminal device and the server can be directly or indirectly connected via wired or wireless communication, which is not limited in the embodiment of the present application.

[0029] refer to Figure 2 , Figure 2 : is a flow chart of a method for controlling oil and gas recovery based on a pressure sensing fueling gun in an embodiment of the present application, the method comprising steps S210 to S230, wherein: Step S210: Obtain the fuel tank pressure corresponding to the target vehicle at the current refueling time, and determine the vehicle type of the target vehicle based on the fuel tank pressure. The vehicle type includes a type that includes an on-board oil and gas recovery function and a type that does not include an on-board oil and gas recovery function.

[0030] Specifically, a pressure sensor is provided in the fuel gun in the embodiment of the present application, and has a pressure sensing function. When the fuel gun is inserted into the fuel tank and contacts the fuel filling port of the fuel tank, the fuel tank pressure at the current refueling time can be collected. Based on the fuel tank pressure, it can be determined whether the target vehicle has an on-board oil and gas recovery function. Common on-board oil and gas recovery functions are generally equipped with an ORVR (Onboard Refueling Vapor Recovery) system. The ORVR system is designed to collect fuel vapor volatilized from the fuel tank during refueling to prevent it from being discharged into the atmosphere. The ORVR system is usually installed between the fuel tank and the fuel filling pipe, and is connected to the carbon canister through specific valves and pipelines. When the car is refueling, the fuel vapor in the fuel tank will be absorbed by the carbon canister. When it is detected that the vehicle engine is running, the oil and gas in the carbon canister will be sucked into the engine intake pipe, mixed with air and burned, and thus reused as fuel. The ORVR system can significantly reduce the emission of fuel vapor during refueling, thereby facilitating the reduction of the concentration of atmospheric pollutants.

[0031] When a vehicle equipped with an on-board oil and gas recovery function is refueling, the oil and gas in the fuel tank will be sucked into the carbon canister. Therefore, the fuel tank pressure is relatively high at the time of refueling. When the fuel tank pressure is higher than the preset pressure threshold, the vehicle type of the target vehicle can be determined as a type that includes an on-board oil and gas recovery function; when the fuel tank pressure is not higher than the preset pressure threshold, the vehicle type of the target vehicle can be determined as a type that does not include an on-board oil and gas recovery function. The specific preset pressure threshold is not specifically limited in the embodiment of the present application, and can be determined by relevant staff based on historical experimental data and uploaded to the oil and gas recovery control device.

[0032] Step S220: determining a target gas-liquid ratio monitoring standard for the target vehicle based on the vehicle type, and monitoring an actual gas-liquid ratio of the target vehicle during the refueling process based on the target gas-liquid ratio monitoring standard.

[0033] Specifically, the refueling gun contains two pipes, one of which is the refueling pipe, which is used to inject gasoline into the fuel tank, and the other is the oil and gas pipe, which is used to suck the oil and gas generated in the fuel tank during the refueling process back into the oil storage tank. The gas-liquid ratio refers to the ratio of the amount of oil and gas recovered by the refueling gun to the amount of refueling during the refueling process. This ratio can reflect the efficiency of the oil and gas recovery system of the refueling machine and is an important basis for measuring whether the oil and gas recovery system is working properly. Once the gas-liquid ratio does not meet the preset environmental protection standards, it may face the consequences of shutdown and rectification. Therefore, when monitoring whether the gas-liquid ratio generated during the refueling process is qualified, there are high requirements for the accuracy of the monitoring results. However, the amount of oil and gas that can be sucked by the refueling gun during the refueling process may be different for target vehicles of different vehicle types. Therefore, if the same gas-liquid ratio monitoring standard is used for monitoring, false warnings may be generated, thereby reducing the accuracy of the monitoring results.

[0034] In order to improve the accuracy of the monitoring results, different target gas-liquid ratio monitoring standards are selected in the embodiment of the present application to monitor the gas-liquid ratio of target vehicles of different vehicle types. When the vehicle type of the target vehicle is a type that includes an on-board oil and gas recovery function, it indicates that in addition to the oil and gas that can be sucked out by the refueling gun during the refueling process, the oil and gas generated in the fuel tank can also be sucked out by the on-board oil and gas recovery function. At this time, the first gas-liquid ratio monitoring standard can be used to judge whether the gas-liquid ratio generated by the target vehicle during the refueling process is qualified. For example, the first gas-liquid ratio monitoring standard can be: when the gas-liquid ratio generated by the target vehicle during the refueling process is lower than 0.5, it indicates that the gas-liquid ratio generated by the target vehicle during the refueling process is qualified; when the vehicle type of the target vehicle is a type that does not include an on-board oil and gas recovery function, it indicates that only the oil and gas in the fuel tank are sucked out by the refueling gun during the refueling process. At this time, the second gas-liquid ratio monitoring standard can be used to judge whether the gas-liquid ratio generated by the target vehicle during the refueling process is qualified. For example, the second gas-liquid ratio monitoring standard can be: when the gas-liquid ratio generated by the target vehicle during the refueling process is in the range of 1.0-1.2, it indicates that the gas-liquid ratio generated by the target vehicle during the refueling process is qualified. The specific first gas-liquid ratio monitoring standard and the second gas-liquid ratio monitoring standard are not specifically limited in the embodiment of the present application, and can be determined by relevant staff based on historical experimental data and uploaded to the oil and gas recovery control equipment.

[0035] Step S230: When the actual gas-liquid ratio does not meet the target gas-liquid ratio monitoring standard, generate warning information.

[0036] Specifically, after selecting the corresponding target gas-liquid ratio monitoring standard according to the vehicle type of the target vehicle, the actual gas-liquid ratio generated by the target vehicle during the refueling process is judged to be qualified based on the target gas-liquid ratio monitoring standard. When it does not meet the corresponding standard, an early warning message can be directly generated to remind relevant refueling personnel to inspect or troubleshoot the refueling machine and refueling gun.

[0037] For the embodiment of the present application, the configuration of the target vehicle is determined by analyzing the fuel tank pressure of the target vehicle at the time of refueling, that is, by analyzing the fuel tank pressure of the target vehicle at the time of refueling, it is judged whether the target vehicle includes an on-board oil and gas recovery function, and then the corresponding gas-liquid ratio monitoring standard is determined based on the vehicle type, instead of using a fixed monitoring standard to monitor whether the gas-liquid ratio of the vehicle during refueling is abnormal. This differentiated monitoring standard facilitates accurate reflection of the oil and gas recovery needs of different vehicle types during refueling, thereby facilitating improved timeliness and accuracy in monitoring whether there are abnormal conditions during the oil and gas recovery process.

[0038] Furthermore, when the vehicle type of the target vehicle is a type that includes an on-board oil and gas recovery function, the method provided in the embodiment of the present application further includes steps S310 to S350, such as Figure 3 As shown, where: Step S310: Obtain the fuel tank information and refueling environment temperature corresponding to the target vehicle within the first preset time period, where the fuel tank information includes refueling rate, refueling amount, and gasoline type.

[0039] Specifically, the first preset time period is a period of time after refueling begins, and the duration corresponding to the first preset time period may be 1 minute or 2 minutes, and the specific duration is not specifically limited in the embodiments of the present application. The fuel tank information can be collected or recorded through the built-in data recording component of the fuel dispenser, wherein the refueling rate, refueling amount, and gasoline type may affect the generation of oil and gas. For example, when the refueling rate is 0-0.35m / s, the amount of oil and gas generated is approximately linearly related to the refueling rate, and decreases as the refueling rate increases; when the refueling rate is between 0.35-1.5m / s, the refueling rate increases, and the oil and gas emissions still decrease, but the reduction trend shows a nonlinear change; when the refueling rate is higher than 1.5m / s, the gasoline in the tank is violently turbulent and splashing is serious, and some liquid gasoline may directly splash out of the tank, resulting in a significant increase in oil and gas emissions. In addition, the more refueling, the larger the volume of gasoline in the fuel tank, and the more oil and gas are produced. In addition, different types of gasoline have different volatility and combustion characteristics, which also have a certain impact on the amount of oil and gas produced. Therefore, when analyzing the amount of oil and gas produced in the fuel tank during refueling, it is necessary to consider the refueling rate, refueling amount and gasoline type.

[0040] As the ambient temperature rises, the volatility of gasoline will increase significantly, which means that at higher refueling temperatures, gasoline molecules are more likely to change from liquid to gas, thereby producing more oil and gas. Therefore, when analyzing the amount of refueling generated during the refueling process, the refueling ambient temperature is also one of the more critical influencing factors. The refueling ambient temperature can be collected by a temperature sensor installed at the refueling machine and uploaded to the oil and gas recovery control equipment.

[0041] Step S320: Based on the fuel tank information, the refueling environment information and the simulated vehicle model corresponding to the target vehicle, the simulated fuel and gas volume corresponding to the target vehicle in the second preset time period is obtained.

[0042] Specifically, the second preset time period is a period of time after the first preset time period, and the refueling operation of the target vehicle can be completed within the first preset time period and the second preset time period. Since different target vehicles have different corresponding fuel tank capacities, fuel tank shapes, and fuel tank materials, and different fuel tank capacities, fuel tank shapes, and fuel tank materials may affect the generation of oil and gas, it is necessary to use a simulated vehicle type corresponding to the target vehicle for simulation, wherein the oil and gas recovery control device includes vehicle models corresponding to different vehicles, and when determining the simulated vehicle model corresponding to the target vehicle, it can be selected from multiple vehicle models based on the model, year, and engine type of the target vehicle.

[0043] According to the refueling demand and the amount of gasoline added in the first preset time period, the amount of gasoline that needs to be added to the target vehicle in the second preset time period is determined, and then the simulated vehicle model corresponding to the target vehicle is driven based on the fuel tank information and the refueling environment information to simulate the refueling process of the target vehicle in the second preset time period, and then based on the preset oil and gas volatilization model, the simulated oil and gas amount generated in the simulated refueling process is calculated.

[0044] Step S330: determining the onboard recovery power of the target vehicle based on the fuel tank pressure corresponding to the target vehicle at the current refueling time.

[0045] Specifically, different target vehicles may have different corresponding on-board recovery powers due to different vehicle models. The on-board recovery power corresponding to the tank pressure can be determined based on the tank pressure corresponding to the target vehicle at the current refueling time and the preset power mapping relationship. The preset power mapping relationship is the correspondence between the tank pressure and the on-board recovery power. The specific content of the preset power mapping relationship is not specifically limited in the embodiment of the present application, and can be determined by relevant staff based on historical experimental data and uploaded to the oil and gas recovery control device.

[0046] Step S340: Based on the vehicle-mounted regenerative power and the simulated oil and gas volume corresponding to the target vehicle in the second preset time period, determine the regenerative power to be added corresponding to the second preset time period.

[0047] Step S350: determining the predicted operating load of the vacuum pump in the oil and gas recovery separator within the second preset time period based on the recovery power to be added.

[0048] Specifically, the on-board recovery power of the target vehicle can be used to characterize the on-board suction capacity of the target vehicle, that is, the limit value of the amount of oil and gas that the target vehicle can suck through the ORVR system within the second preset time period. When the simulated oil and gas volume is not higher than the oil and gas volume limit, it indicates that the oil and gas can be completely recovered only through the ORVR system of the target vehicle, and there is no need to start the oil and gas recovery separator built into the fuel dispenser. That is, the recovery power to be added corresponding to the second preset time period is 0; when the simulated oil and gas volume is higher than the oil and gas volume limit, it indicates that the oil and gas generated in the fuel tank within the second preset time period cannot be completely recovered only through the ORVR system of the target vehicle. At this time, it is necessary to start the oil and gas recovery separator built into the fuel dispenser to assist the ORVR system of the target vehicle to recover the oil and gas generated in the fuel tank.

[0049] The recovery power to be added is the operating power of the oil and gas recovery separator built into the fuel dispenser, which is the predicted operating power of the vacuum pump in the oil and gas recovery separator, that is, the predicted operating load of the vacuum pump. By allocating recovery assistance resources on demand, that is, appropriately adjusting the operating load of the vacuum pump in the oil and gas recovery separator according to the recovery assistance needs, the vacuum pump is prevented from always being in a high-load operating state, which not only avoids wasting recovery resources, but also facilitates extending the service life of the vacuum pump.

[0050] In order to further improve the accuracy of adjusting the operating load of the vacuum pump, the method provided in the embodiment of the present application further includes: Obtain actual fuel tank information corresponding to the target vehicle within a second preset time period and simulated fuel tank information corresponding to the simulated oil and gas volume; compare the actual fuel tank information with the simulated fuel tank information to determine difference information; determine an operating load adjustment value based on the difference information, and adjust the predicted operating load of the vacuum pump based on the operating load adjustment value.

[0051] Specifically, the actual fuel tank information corresponding to the target vehicle within the second preset time period is the fuel tank information generated in real time at each moment within the second preset time period by the target vehicle, and the simulated fuel tank information is the simulated information generated in the process of determining the simulated oil and gas volume based on the fuel tank information generated within the first preset time period. The simulated fuel tank information may be more idealized, that is, there may be uncertain factors affecting the fuel tank information during the actual refueling process, which may cause an error between the actual oil and gas volume generated in the fuel tank during the actual refueling process and the simulated oil and gas volume, which may cause the predicted operating load of the vacuum pump to be too high or too low. At this time, the operating compliance adjustment value can be determined based on the difference information between the actual fuel tank information and the simulated fuel tank information to adjust the predicted operating load of the vacuum pump, so as to improve the adaptability between the predicted operating compliance of the vacuum pump and the actual suction demand.

[0052] The difference information may be a difference in refueling rate, a difference in gasoline type, and a difference in refueling ambient temperature, etc. Different difference information corresponds to different operating load adjustment values. The operating load adjustment value corresponding to any difference information can be determined based on the preset adjustment value mapping relationship. The preset adjustment value mapping relationship is the operating load adjustment value corresponding to different combinations of difference information. The specific content of the preset adjustment value mapping relationship is not specifically limited in the embodiment of the present application. Comparison helps to identify the deviation between the simulation model and the actual operation, thereby facilitating the disclosure of potential problems or sources of error. Finally, the predicted operating load of the vacuum pump is adjusted based on the difference information, so as to improve the accuracy of adjusting the operating load of the vacuum pump.

[0053] Furthermore, in order to facilitate timely discovery and handling of potential risks, the method provided in the embodiment of the present application also includes: When the difference information contains preset difference parameters, the difference information is determined as the difference information of concern, and the time when the abnormality occurs for each preset difference parameter within the preset observation time period and the corresponding duration of the abnormality are recorded; the abnormality frequency is determined based on all the abnormality occurrence times, and the total abnormality duration is determined based on the abnormality duration corresponding to each preset difference parameter; when the abnormality frequency is higher than the preset abnormality frequency, or the total abnormality duration is higher than the preset duration, abnormal warning information is generated.

[0054] Specifically, the preset difference parameter can be the refueling rate or the refueling environment temperature. The specific preset difference parameter is not specifically limited in the embodiment of the present application. The preset observation time period is a period of time in the second preset time period, which can be a period of time after the difference information is determined. The duration corresponding to the preset observation time period can be 1 minute or 2 minutes. The specific duration is not specifically limited in the embodiment of the present application.

[0055] The abnormal occurrence time corresponding to all preset difference parameters in the difference information within the preset observation time period and the corresponding abnormal duration after each abnormality occurs are counted. When the preset conditions are met, abnormal warning information is immediately generated, wherein the preset conditions are that the abnormal frequency corresponding to each preset difference parameter within the preset observation time period is higher than the preset abnormal frequency, or the sum of the abnormal durations after the abnormality of each preset difference parameter within the preset observation time period is higher than the preset duration, wherein the specific preset abnormal frequency and preset duration are not specifically limited in the embodiments of the present application, and can be set by relevant technical personnel according to actual needs. The abnormal warning information generated at this time is different from the warning information generated in the above embodiments. The generation of abnormal warning information indicates that there may be abnormal refueling rate or refueling environment temperature during the refueling process, but it cannot be determined whether there is an unqualified gas-liquid ratio.

[0056] By calculating the abnormal frequency and total abnormal duration, it is convenient to conduct a quantitative assessment of the abnormal conditions of the attention difference information, so as to intuitively reflect the specific abnormal conditions. In addition, this timely early warning mechanism helps relevant users to promptly discover and deal with potential risks, thereby facilitating the avoidance or reduction of losses.

[0057] Furthermore, in order to intuitively understand the oil and gas status in the oil tank, the method provided in the embodiment of the present application further includes: The actual refueling parameter information and the actual refueling environment information of the target vehicle during the refueling process are obtained, and the real-time gas-liquid flow trajectory and the real-time gas-liquid ratio are determined based on the actual refueling parameter information, the actual refueling environment information and the simulated fuel tank model corresponding to the target vehicle; the real-time gas-liquid display color corresponding to the real-time gas-liquid ratio is determined based on the real-time gas-liquid ratio and a preset display mapping relationship, and the preset display mapping relationship is the correspondence between the real-time gas-liquid ratio and the real-time gas-liquid display color; based on the real-time gas-liquid flow trajectory, the real-time gas-liquid ratio and the real-time gas-liquid display color, the real-time gas-liquid distribution map is determined.

[0058] Specifically, different target vehicles correspond to different simulated fuel tank models. The corresponding simulated fuel tank model can be determined from the oil and gas recovery control device based on the model of the target vehicle. The oil and gas recovery control device contains simulated fuel tank models corresponding to different vehicle models, which can be determined by relevant staff based on historical experimental data and uploaded to the oil and gas recovery control device. Based on the actual refueling parameter information and the actual refueling environment information, the real-time gas-liquid ratio and real-time gas-liquid flow trajectory corresponding to each moment in the refueling process can be determined. The real-time gas-liquid flow trajectory is the movement trajectory of the oil and gas generated during the refueling process in the fuel tank, wherein the real-time gas-liquid flow trajectory can be determined based on preset fluid dynamics or preset computational fluid dynamics. The specific method is not specifically limited in the embodiments of this application, as long as the flow of oil and gas in the fuel tank can be simulated.

[0059] Different real-time gas-liquid display colors are used to represent different real-time gas-liquid ratios, so that relevant staff can quickly identify the state of oil and gas in the fuel tank. Different real-time gas-liquid ratios correspond to different real-time gas-liquid display colors. Based on the preset display mapping relationship, the real-time gas-liquid display color corresponding to any real-time gas-liquid ratio can be determined. For example, a lower real-time gas-liquid ratio may correspond to blue, and a higher real-time gas-liquid ratio may correspond to red. The specific content of the preset display mapping relationship is not specifically limited in the embodiments of this application. By combining sensor technology, data processing algorithms and graphics generation technology, real-time monitoring and visual display of the oil and gas status of the target vehicle during refueling are achieved.

[0060] Furthermore, when a refueling completion instruction is detected, the method provided in the embodiment of the present application further includes: Obtain the refueling duration and refueling amount corresponding to the refueling completion instruction, and determine the oil and gas residual value based on the refueling duration and the refueling amount; when the oil and gas residual value is higher than the preset residual value, determine the continuation operation parameters based on the oil and gas residual value, and the continuation operation parameters include the continuation operation duration and the continuation operation load; based on the continuation operation parameters, control the vacuum pump in the oil and gas recovery separator to perform continuation operation.

[0061] Specifically, the refueling completion instruction can be issued after detecting that the refueling gun has returned to the corresponding position of the refueling machine, the refueling amount can be recorded by the flow meter installed in the refueling machine and uploaded to the oil and gas recovery control device, and the refueling time can be recorded by the time recording sensor installed in the refueling machine and uploaded to the oil and gas recovery control device. First, based on historical data and experimental research, an oil and gas residual value calculation model between the oil and gas residual value and the refueling time and refueling amount can be established, and then the corresponding refueling time and refueling amount in the actual refueling process can be input into the oil and gas residual value calculation model, and the oil and gas residual value calculation model can output the corresponding oil and gas residual value.

[0062] When the oil and gas residual value is not higher than the preset residual value, the oil and gas remaining in the hose can be ignored, and at this time, there is no need to continue oil and gas recovery; when the oil and gas residual value is higher than the preset residual value, the oil and gas remaining in the hose may affect the surrounding environment. At this time, it is necessary to continue to recover the oil and gas remaining in the hose. Different oil and gas residual values ​​correspond to different continuous operation parameters. The continuous operation time and continuous operation load corresponding to different oil and gas residual values ​​can be determined based on the preset parameter mapping relationship. The determined continuous operation parameters are the continuous operation parameters of the vacuum pump in the oil and gas recovery separator in the tanker. The continuous operation time should be sufficient to reduce the oil and gas residual value to below the preset residual value. The continuous operation load setting should not only ensure the oil and gas recovery efficiency, but also avoid excessive wear and energy consumption on the vacuum pump. After determining the continuous operation parameters, the oil and gas recovery control device can automatically adjust the working state of the vacuum pump based on the continuous operation parameters until the predetermined oil and gas recovery effect is achieved.

[0063] The present application provides an oil and gas recovery control device, such as Figure 4 As shown, Figure 4 The oil and gas recovery control device 400 shown includes: a processor 401 and a memory 403. The processor 401 and the memory 403 are connected, such as through a bus 302. Optionally, the oil and gas recovery control device 400 may also include a transceiver 404. It should be noted that in actual applications, the transceiver 404 is not limited to one, and the structure of the oil and gas recovery control device 400 does not constitute a limitation on the embodiments of the present application.

[0064] Processor 401 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. Processor 401 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0065] The bus 402 may include a path to transmit information between the above components. The bus 402 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 402 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 The fact that only one line is used in the diagram does not mean that there is only one bus or only one type of bus.

[0066] The memory 403 may be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compressed optical disk, laser disk, optical disk, digital versatile disk, Blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0067] The memory 403 is used to store the application code for executing the solution of the present application, and the execution is controlled by the processor 401. The processor 401 is used to execute the application code stored in the memory 403 to implement the contents shown in the above method embodiment.

[0068] The oil and gas recovery control equipment includes, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), vehicle terminals (such as vehicle navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. It can also be a server, etc. Figure 4 The oil and gas recovery control device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0069] An embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer-readable storage medium is run on a computer, the computer can execute the corresponding content in the aforementioned method embodiment.

[0070] An embodiment of the present application provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the method in any of the above embodiments is implemented.

[0071] It should be understood that, although the steps in the flowchart of the accompanying drawings are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a part of the sub-steps or stages of other steps.

[0072] The above description is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for controlling oil and gas recovery based on a pressure sensing fueling gun, characterized in that: include: Obtaining a fuel tank pressure corresponding to a target vehicle at a current refueling time, and determining a vehicle type of the target vehicle based on the fuel tank pressure, wherein the vehicle type includes a type including an on-board fuel gas recovery function and a type not including an on-board fuel gas recovery function; Determining a target gas-liquid ratio monitoring standard for the target vehicle based on the vehicle type, and monitoring an actual gas-liquid ratio generated by the target vehicle during refueling based on the target gas-liquid ratio monitoring standard; When the actual gas-liquid ratio does not meet the target gas-liquid ratio monitoring standard, an early warning message is generated.

2. The oil and gas recovery control method based on a pressure sensing fueling gun according to claim 1 is characterized in that: When the vehicle type of the target vehicle is a type that includes an on-board oil and gas recovery function, it also includes: Obtaining the fuel tank information and refueling environment temperature corresponding to the target vehicle within a first preset time period, wherein the fuel tank information includes a refueling rate, a refueling amount, and a gasoline type; Based on the fuel tank information, the refueling environment information and the simulated vehicle model corresponding to the target vehicle, obtaining a simulated oil and gas volume corresponding to the target vehicle within a second preset time period; Determining the on-board recovery power of the target vehicle based on the fuel tank pressure corresponding to the target vehicle at the current refueling time; Determining the recovery power to be added corresponding to the second preset time period based on the on-board recovery power and the simulated oil and gas volume corresponding to the target vehicle in the second preset time period; The predicted operating load of the vacuum pump in the oil and gas recovery separator within the second preset time period is determined based on the recovery power to be added.

3. The oil and gas recovery control method based on a pressure sensing fueling gun according to claim 2 is characterized in that: Also includes: Acquire the actual fuel tank information corresponding to the target vehicle within the second preset time period and the simulated fuel tank information corresponding to the simulated fuel and gas volume; comparing the actual fuel tank information with the simulated fuel tank information to determine difference information; An operation load adjustment value is determined based on the difference information, and the predicted operation load of the vacuum pump is adjusted based on the operation load adjustment value.

4. The oil and gas recovery control method based on a pressure sensing fueling gun according to claim 3 is characterized in that: Also includes: When the difference information includes preset difference parameters, the difference information is determined as the difference information of interest, and the abnormal occurrence time of each preset difference parameter within the preset observation time period and the corresponding abnormal duration are recorded; The abnormal frequency is determined based on all the abnormal occurrence moments, and the total abnormal duration is determined based on the abnormal duration corresponding to each preset difference parameter. When the abnormal frequency is higher than the preset abnormal frequency, or the total abnormal duration is higher than the preset duration, abnormal warning information is generated.

5. The oil and gas recovery control method based on a pressure sensing fueling gun according to claim 2 is characterized in that: Also includes: Acquire actual refueling parameter information and actual refueling environment information of the target vehicle during the refueling process, and determine a real-time gas-liquid flow trajectory and a real-time gas-liquid ratio based on the actual refueling parameter information, the actual refueling environment information and a simulated fuel tank model corresponding to the target vehicle; Determine the real-time gas-liquid ratio and the preset display mapping relationship based on the real-time gas-liquid ratio and the real-time gas-liquid display color corresponding to the real-time gas-liquid ratio, wherein the preset display mapping relationship is the corresponding relationship between the real-time gas-liquid ratio and the real-time gas-liquid display color; A real-time gas-liquid distribution map is determined based on the real-time gas-liquid flow trajectory, the real-time gas-liquid ratio, and the real-time gas-liquid display color.

6. The oil and gas recovery control method based on a pressure sensing fueling gun according to claim 1 is characterized in that: When the refueling completion instruction is detected, it also includes: Obtaining the refueling duration and refueling amount corresponding to the refueling completion instruction, and determining the oil and gas residual value based on the refueling duration and refueling amount; When the oil and gas residual value is higher than a preset residual value, determining a continuation operation parameter based on the oil and gas residual value, the continuation operation parameter including a continuation operation duration and a continuation operation load; Based on the continuous operation parameters, the vacuum pump in the oil and gas recovery separator is controlled to perform continuous operation.

7. An oil and gas recovery control system based on a pressure sensing fueling gun, characterized in that: It includes a refueling gun equipped with a pressure sensing sensor, a monitoring component and an alarm component, wherein the monitoring component and the alarm component are both arranged in a refueling machine, and the refueling gun equipped with the pressure sensing sensor can exchange information with the refueling machine; The refueling gun equipped with a pressure sensing sensor is used to obtain the corresponding fuel tank pressure of the target vehicle at the current refueling time; The monitoring component is used to determine the vehicle type of the target vehicle after analyzing the fuel tank pressure, and after determining the target gas-liquid ratio monitoring standard based on the determined vehicle type, monitor the actual gas-liquid ratio generated by the target vehicle during the refueling process based on the target gas-liquid ratio monitoring standard; The alarm component is used to receive the monitoring results output by the monitoring component and generate early warning information based on the monitoring results.

8. An oil and gas recovery control device, characterized in that: The oil and gas recovery control equipment includes: at least one processor; Memory; At least one application, wherein the at least one application is stored in a memory and configured to be executed by at least one processor, and the at least one application is configured to: execute a method for controlling oil and gas recovery based on a pressure-sensing fueling gun according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that: include: A computer program is stored which can be loaded by a processor and executes a method for controlling oil and gas recovery based on a pressure sensing fueling gun as described in any one of claims 1 to 6.

10. A computer program product, characterized in that It comprises a computer program, which, when executed by a processor, implements the steps of a method for controlling oil and gas recovery based on a pressure sensing fueling gun according to any one of claims 1 to 6.

Images