This study aims to explore the relationship between the driving factors,implementation measures,and effects of financial management digital transformation in the banking industry in Jinan,Shandong Province,China.Faced...This study aims to explore the relationship between the driving factors,implementation measures,and effects of financial management digital transformation in the banking industry in Jinan,Shandong Province,China.Faced with intense competition driven by advancements in financial technology,evolving customer demands,and policy support,digital transformation has become a critical strategy for enhancing operational efficiency and market competitiveness.Leveraging the researcher's extensive professional experience and employing scientific research methods and tools,the study conducted an online survey across multiple banking institutions in Jinan,collecting 305 valid responses from senior management,financial department heads,IT personnel,middle management,and financial and audit staff.The questionnaire was designed around key dimensions of financial management digital transformation,including driving factors,implementation measures,and effect evaluation,covering variables such as technology adoption,process optimization,employee training,data security,and organizational adjustments.Quantitative analysis methods,including reliability analysis,validity analysis,descriptive analysis,regression analysis,and chi-square independence tests,were used to ensure data quality and uncover inherent patterns.The findings reveal significant relationships between driving factors(e.g.,financial technology advancements,market demand,and policy support)and transformation effects(e.g.,operational efficiency,resource allocation,and customer experience),with notable differences in implementation outcomes across different types of banks.Based on these insights,the study provides strategic recommendations for optimizing digital transformation in Jinan's banking industry,aiming to enhance operational efficiency,improve financial service quality,and support sustainable industry development.展开更多
The consensus of the automotive industry and traffic management authorities is that autonomous vehicles must follow the same traffic laws as human drivers.Using formal or digital methods,natural language traffic rules...The consensus of the automotive industry and traffic management authorities is that autonomous vehicles must follow the same traffic laws as human drivers.Using formal or digital methods,natural language traffic rules can be translated into machine language and used by autonomous vehicles.In this paper,a translation flow is designed.Beyond the translation,a deeper examination is required,because the semantics of natural languages are rich and complex,and frequently contain hidden assumptions.The issue of how to ensure that digital rules are accurate and consistent with the original intent of the traffic rules they represent is both significant and unresolved.In response,we propose a method of formal verification that combines equivalence verification with model checking.Reasonable and reassuring digital traffic rules can be obtained by utilizing the proposed traffic rule digitization flow and verification method.In addition,we offer a number of simulation applications that employ digital traffic rules to assess vehicle violations.The experimental findings indicate that our digital rules utilizing metric temporal logic(MTL)can be easily incorporated into simulation platforms and autonomous driving systems(ADS).展开更多
A direct digital design method （DDDM） of worm-gear drive is proposed. It is directly based on the simulation of manufacturing process and completely different from the conventional modeling method. The loaded tooth ...A direct digital design method （DDDM） of worm-gear drive is proposed. It is directly based on the simulation of manufacturing process and completely different from the conventional modeling method. The loaded tooth contact analysis （LTCA） method is analyzed, in which the advanced surface to surface searching technique is included. The influence of misalignment errors and contact deformations on contact zone and transmission error （TE） is discussed. Combined modification approach on worm tooth surface is presented. By means of DDDM and LTCA, it is very conven- ient to verify the effect of worm-gear drive＇s modification approach. The analysis results show that, the modification in profile direction reduces the sensitivity of worm-gear drive to misalignment errors and the modification in longitudinal direction decreases the TE. Thus the optimization design of worm-gear drive can be achieved prior to the actual manufacturing process.展开更多
The digitalization of arc welding power source mainly depends on the digitalization of arc welding inverter,so that main circuit and controlling system can give full play to advantages.Digital switching control makes ...The digitalization of arc welding power source mainly depends on the digitalization of arc welding inverter,so that main circuit and controlling system can give full play to advantages.Digital switching control makes main circuit digital and DSP and/or MCU makes controlling system,digital.So IGBT driving circuit,as a tie of main circuit and controlling system,should also be got digitalized.Thus,a digital driving circuit based on optocoupler device HCPL-316 J is provided.Some testing experiments were done.After driving testing,the driving circuit certificates that driving waveforms satisfy the requirements of arc welding power source and the driving circuit is reasonably and simply designed.And the driving circuit has high controlling precision and reliability.No-load-voltage testing and welding external characteristic testing prove that the driving circuit can be applied in arc welding power source.展开更多
Road obstacles that unexpectedly appear due to vehicle breakdowns and accidents are major causes of fatal road accidents.Connected Autonomous Vehicles(CAVs)can be used to avoid collisions to ensure road safety through...Road obstacles that unexpectedly appear due to vehicle breakdowns and accidents are major causes of fatal road accidents.Connected Autonomous Vehicles(CAVs)can be used to avoid collisions to ensure road safety through cooperative sensing and driving.However,the collision avoidance performance of CAVs with unexpected obstacles has not been studied in the existing works.In this paper,we first design a platoon-based collision avoidance framework for CAVs.In this framework,we deploy a Digital Twin(DT)system at the head vehicle in a platoon to reduce communication overhead and decision-making delay based on a proposed trajectory planning scheme.In addition,a DT-assistant system is deployed on the assistant vehicle to monitor vehicles out of the sensing range of the head vehicle for the maintenance of the DT system.In this case,the transmission frequency of kinetic states of platoon members can be reduced to ensure low-overhead communication.Moreover,we design a variable resource reservation interval that can ensure DT synchronization between DT and the assistant system with high reliability.To further improve road safety,an urgency level-based trajectory planning algorithm is proposed to avoid unexpected obstacles considering different levels of emergency risks.Simulation results show that our DT system-based scheme can achieve significant performance gains in unexpected obstacle avoidance.Compared to the existing schemes,it can reduce collisions by 95%and is faster by about 10%passing by the unexpected obstacle.展开更多
In many cases, the cutting method is usually adopted for the efficient machining of non-circular body of revolution and a feed drive is needed to actuate the cutting tool to and fro according to input signal wave. The...In many cases, the cutting method is usually adopted for the efficient machining of non-circular body of revolution and a feed drive is needed to actuate the cutting tool to and fro according to input signal wave. The feed drive for the purpose is required of fast response and accurate positioning. Both of these are highly dependent upon the actuating elements. Several schemes of actuation are specially interested. One is the introduction of piezoelectric actuation. However, the tiny working stroke of the piezoelectric material limits its application to a narrow range. Another is the application of electro-magnetic actuator. An innovative feed drive actuated by the stepper motor is introduced for the purpose. For a conventional step operating mode, a stepper motor can only be controlled to position at finite discrete points. Thus, when it is applied as an actuator of the feed drive, it is very difficult to maintain high accuracy and fast response. To eliminate quantitative error, the stepper motor is controlled under the continual mode. It is achieved with a micro-controller system and a built-in control algorithm program, called "tracking algorithm". Within each sampling cycle, the micro-controller will sample the input signal and the time interval will be divided into two parts according to the relative position between two adjacent stepping points. The phase coils correspondent to the two adjacent stepping points are energized respectively with calculated time duration. In the way, the motion of the tool frame smoothly tracks the input signal. This paper presents modeling and identification of frequency response of the proposed drive. The dynamic response of the feed drive is manly decided by the natural frequency of the stepper motor. For the conventional small-size stepper motors, the natural frequency is within the range 200～400 Hz. Experimental results show that the stepper motor actuated tool frame can smoothly keep in track of the input signal wave under "tracking control". The bandwidth of frequency of the feed drive exceeds 310 Hz.展开更多
Driver behavior modeling is becoming increasingly important in the study of traffic safety and devel- opment of cognitive vehicles. An algorithm for dealing with reliability for both digital driving and conventional d...Driver behavior modeling is becoming increasingly important in the study of traffic safety and devel- opment of cognitive vehicles. An algorithm for dealing with reliability for both digital driving and conventional driving has been developed in this paper. Problems of digital driving error classification, digital driving error probability quantification and digital driving reliability simulation have been addressed using a comparison re- search method. Simulation results show that driving reliability analysis discussed here is capable of identifying digital driving behavior characteristics and achieving safety assessment of intelligent transportation system.展开更多
This paper deals with performance analysis and implementation of a three phase inverter fed induction motor (IM) drive system. The closed loop control scheme of the drive utilizes the Digital Phase Locked Loop (DPLL)....This paper deals with performance analysis and implementation of a three phase inverter fed induction motor (IM) drive system. The closed loop control scheme of the drive utilizes the Digital Phase Locked Loop (DPLL). The DPLL is safely implemented all around the well known integrated circuit DPLL 4046. An ex-perimental verification is carried out on one kw scalar controlled IM system drives for a wide range of speeds and loads appliance. This presents a simple and high performance solution for industrial applications.展开更多
Platoon-based autonomous driving is indispensable for traffic automation,but it confronts substantial constraints in rugged terrains with unreliable links and scarce communication resources.This paper proposes a novel...Platoon-based autonomous driving is indispensable for traffic automation,but it confronts substantial constraints in rugged terrains with unreliable links and scarce communication resources.This paper proposes a novel hierarchical Digital Twin(DT)and consensus empowered cooperative control framework for safe driving in harsh areas.Specifically,leveraging intra-platoon information exchange,one platoon-level DT is constructed on the leader and multiple vehicle-level DTs are distributed among platoon members.The leader first makes critical platoon-driving decisions based on the platoon-level DT.Then,considering the impact of unreliable links on the platoon-level DT accuracy and the consequent risk of unsafe decision-making,a distributed consensus scheme is proposed to negotiate critical decisions efficiently.Upon successful negotiation,vehicles proceed to execute critical decisions,relying on their vehicle-level DTs.Otherwise,a Space-Air-Ground-Integrated-Network(SAGIN)enabled information exchange is utilized to update the platoon-level DT for subsequent safe decision-making in scenarios with unreliable links,no roadside units,and obstructed platoons.Furthermore,based on this framework,an adaptive platooning scheme is designed to minimize total delay and ensure driving safety.Simulation results indicate that our proposed scheme improves driving safety by 21.1%and reduces total delay by 24.2%in harsh areas compared with existing approaches.展开更多
The theories of synchronization based on secure communications using digital chaos are presented. A new synchronous method-cycles-interval Pulse drive is developed and realized. Experimental results show it is availab...The theories of synchronization based on secure communications using digital chaos are presented. A new synchronous method-cycles-interval Pulse drive is developed and realized. Experimental results show it is available, and in order to reduce synchronous noise, a method using model references solves the ratio of signal power to noise power, so the secure communication system can be realized.展开更多
文摘This study aims to explore the relationship between the driving factors,implementation measures,and effects of financial management digital transformation in the banking industry in Jinan,Shandong Province,China.Faced with intense competition driven by advancements in financial technology,evolving customer demands,and policy support,digital transformation has become a critical strategy for enhancing operational efficiency and market competitiveness.Leveraging the researcher's extensive professional experience and employing scientific research methods and tools,the study conducted an online survey across multiple banking institutions in Jinan,collecting 305 valid responses from senior management,financial department heads,IT personnel,middle management,and financial and audit staff.The questionnaire was designed around key dimensions of financial management digital transformation,including driving factors,implementation measures,and effect evaluation,covering variables such as technology adoption,process optimization,employee training,data security,and organizational adjustments.Quantitative analysis methods,including reliability analysis,validity analysis,descriptive analysis,regression analysis,and chi-square independence tests,were used to ensure data quality and uncover inherent patterns.The findings reveal significant relationships between driving factors(e.g.,financial technology advancements,market demand,and policy support)and transformation effects(e.g.,operational efficiency,resource allocation,and customer experience),with notable differences in implementation outcomes across different types of banks.Based on these insights,the study provides strategic recommendations for optimizing digital transformation in Jinan's banking industry,aiming to enhance operational efficiency,improve financial service quality,and support sustainable industry development.
文摘The consensus of the automotive industry and traffic management authorities is that autonomous vehicles must follow the same traffic laws as human drivers.Using formal or digital methods,natural language traffic rules can be translated into machine language and used by autonomous vehicles.In this paper,a translation flow is designed.Beyond the translation,a deeper examination is required,because the semantics of natural languages are rich and complex,and frequently contain hidden assumptions.The issue of how to ensure that digital rules are accurate and consistent with the original intent of the traffic rules they represent is both significant and unresolved.In response,we propose a method of formal verification that combines equivalence verification with model checking.Reasonable and reassuring digital traffic rules can be obtained by utilizing the proposed traffic rule digitization flow and verification method.In addition,we offer a number of simulation applications that employ digital traffic rules to assess vehicle violations.The experimental findings indicate that our digital rules utilizing metric temporal logic(MTL)can be easily incorporated into simulation platforms and autonomous driving systems(ADS).
基金This project is supported by National Natural Science Foundation of China (No.E50575234).
文摘A direct digital design method （DDDM） of worm-gear drive is proposed. It is directly based on the simulation of manufacturing process and completely different from the conventional modeling method. The loaded tooth contact analysis （LTCA） method is analyzed, in which the advanced surface to surface searching technique is included. The influence of misalignment errors and contact deformations on contact zone and transmission error （TE） is discussed. Combined modification approach on worm tooth surface is presented. By means of DDDM and LTCA, it is very conven- ient to verify the effect of worm-gear drive＇s modification approach. The analysis results show that, the modification in profile direction reduces the sensitivity of worm-gear drive to misalignment errors and the modification in longitudinal direction decreases the TE. Thus the optimization design of worm-gear drive can be achieved prior to the actual manufacturing process.
文摘The digitalization of arc welding power source mainly depends on the digitalization of arc welding inverter,so that main circuit and controlling system can give full play to advantages.Digital switching control makes main circuit digital and DSP and/or MCU makes controlling system,digital.So IGBT driving circuit,as a tie of main circuit and controlling system,should also be got digitalized.Thus,a digital driving circuit based on optocoupler device HCPL-316 J is provided.Some testing experiments were done.After driving testing,the driving circuit certificates that driving waveforms satisfy the requirements of arc welding power source and the driving circuit is reasonably and simply designed.And the driving circuit has high controlling precision and reliability.No-load-voltage testing and welding external characteristic testing prove that the driving circuit can be applied in arc welding power source.
基金partly supported by National Key R&D Program of China(No.2018YFE0117500)National Natural Science Foundation of China(No.62171104)+2 种基金EU Horizon2020(824019),EU Horizon2020(101022280)Horizon Europe(101086228)the UK EPSRC(EP/Y027787/1)。
文摘Road obstacles that unexpectedly appear due to vehicle breakdowns and accidents are major causes of fatal road accidents.Connected Autonomous Vehicles(CAVs)can be used to avoid collisions to ensure road safety through cooperative sensing and driving.However,the collision avoidance performance of CAVs with unexpected obstacles has not been studied in the existing works.In this paper,we first design a platoon-based collision avoidance framework for CAVs.In this framework,we deploy a Digital Twin(DT)system at the head vehicle in a platoon to reduce communication overhead and decision-making delay based on a proposed trajectory planning scheme.In addition,a DT-assistant system is deployed on the assistant vehicle to monitor vehicles out of the sensing range of the head vehicle for the maintenance of the DT system.In this case,the transmission frequency of kinetic states of platoon members can be reduced to ensure low-overhead communication.Moreover,we design a variable resource reservation interval that can ensure DT synchronization between DT and the assistant system with high reliability.To further improve road safety,an urgency level-based trajectory planning algorithm is proposed to avoid unexpected obstacles considering different levels of emergency risks.Simulation results show that our DT system-based scheme can achieve significant performance gains in unexpected obstacle avoidance.Compared to the existing schemes,it can reduce collisions by 95%and is faster by about 10%passing by the unexpected obstacle.
文摘In many cases, the cutting method is usually adopted for the efficient machining of non-circular body of revolution and a feed drive is needed to actuate the cutting tool to and fro according to input signal wave. The feed drive for the purpose is required of fast response and accurate positioning. Both of these are highly dependent upon the actuating elements. Several schemes of actuation are specially interested. One is the introduction of piezoelectric actuation. However, the tiny working stroke of the piezoelectric material limits its application to a narrow range. Another is the application of electro-magnetic actuator. An innovative feed drive actuated by the stepper motor is introduced for the purpose. For a conventional step operating mode, a stepper motor can only be controlled to position at finite discrete points. Thus, when it is applied as an actuator of the feed drive, it is very difficult to maintain high accuracy and fast response. To eliminate quantitative error, the stepper motor is controlled under the continual mode. It is achieved with a micro-controller system and a built-in control algorithm program, called "tracking algorithm". Within each sampling cycle, the micro-controller will sample the input signal and the time interval will be divided into two parts according to the relative position between two adjacent stepping points. The phase coils correspondent to the two adjacent stepping points are energized respectively with calculated time duration. In the way, the motion of the tool frame smoothly tracks the input signal. This paper presents modeling and identification of frequency response of the proposed drive. The dynamic response of the feed drive is manly decided by the natural frequency of the stepper motor. For the conventional small-size stepper motors, the natural frequency is within the range 200～400 Hz. Experimental results show that the stepper motor actuated tool frame can smoothly keep in track of the input signal wave under "tracking control". The bandwidth of frequency of the feed drive exceeds 310 Hz.
基金Sponsored by the National Natural Science Foundation of China(50878023)the Scientific Research Foundation for the Returned Overseas Chinese Scholars
文摘Driver behavior modeling is becoming increasingly important in the study of traffic safety and devel- opment of cognitive vehicles. An algorithm for dealing with reliability for both digital driving and conventional driving has been developed in this paper. Problems of digital driving error classification, digital driving error probability quantification and digital driving reliability simulation have been addressed using a comparison re- search method. Simulation results show that driving reliability analysis discussed here is capable of identifying digital driving behavior characteristics and achieving safety assessment of intelligent transportation system.
文摘This paper deals with performance analysis and implementation of a three phase inverter fed induction motor (IM) drive system. The closed loop control scheme of the drive utilizes the Digital Phase Locked Loop (DPLL). The DPLL is safely implemented all around the well known integrated circuit DPLL 4046. An ex-perimental verification is carried out on one kw scalar controlled IM system drives for a wide range of speeds and loads appliance. This presents a simple and high performance solution for industrial applications.
基金partly supported by the National Natural Science Foundation of China(Nos.62171104 and 62201122)Chengdu Bureau of Science and Technology with No.2023-YF06-00030-HZ.
文摘Platoon-based autonomous driving is indispensable for traffic automation,but it confronts substantial constraints in rugged terrains with unreliable links and scarce communication resources.This paper proposes a novel hierarchical Digital Twin(DT)and consensus empowered cooperative control framework for safe driving in harsh areas.Specifically,leveraging intra-platoon information exchange,one platoon-level DT is constructed on the leader and multiple vehicle-level DTs are distributed among platoon members.The leader first makes critical platoon-driving decisions based on the platoon-level DT.Then,considering the impact of unreliable links on the platoon-level DT accuracy and the consequent risk of unsafe decision-making,a distributed consensus scheme is proposed to negotiate critical decisions efficiently.Upon successful negotiation,vehicles proceed to execute critical decisions,relying on their vehicle-level DTs.Otherwise,a Space-Air-Ground-Integrated-Network(SAGIN)enabled information exchange is utilized to update the platoon-level DT for subsequent safe decision-making in scenarios with unreliable links,no roadside units,and obstructed platoons.Furthermore,based on this framework,an adaptive platooning scheme is designed to minimize total delay and ensure driving safety.Simulation results indicate that our proposed scheme improves driving safety by 21.1%and reduces total delay by 24.2%in harsh areas compared with existing approaches.
基金This work was financially supported by the National Nature Science Foundation of China (No. 69772014)
文摘The theories of synchronization based on secure communications using digital chaos are presented. A new synchronous method-cycles-interval Pulse drive is developed and realized. Experimental results show it is available, and in order to reduce synchronous noise, a method using model references solves the ratio of signal power to noise power, so the secure communication system can be realized.
