Hazard Analysis of Traffic Collision Avoidance System Based on STAMP Model

Niu, Haotian; Ma, Cunbao; Wang, Chen; Han, Pei

doi:10.1109/pic.2018.8706283

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…In our early research, a safety analysis of the mission process of airborne weather radar systems and TCAS was performed using STAMP/STPA. 65 We found that the heavy dependence on human knowledge and experience is a defect of STAMP/STPA. Moreover, the analysis results will inevitably be affected by human analysis capacity and knowledge boundaries.…”

Section: Knowledge Application In Aviation Safety Fieldmentioning

confidence: 78%

A hybrid methodology for knowledge organization and application of Chinese civil aviation regulations from mission safety support perspective

Niu,

Ma,

She

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part G:

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Safety is one of the most important issues in aviation. Aviation regulations provide significant information pertinent to the safety design and operation of aircraft; however, this information has not been effectively used. It is difficult to precisely identify and obtain the necessary information due to massive and unstructured provisions. In this study, a hybrid methodology is proposed to realize knowledge system construction using Chinese Civil Aviation Regulations as the object of study. To realize structured knowledge organization and intelligent knowledge application for aviation regulations, the hybrid methodology integrates a semantic cohesion model, a knowledge recognition model, a knowledge organization model, and a knowledge application model. A knowledge system of aviation regulations is built using the hybrid methodology comprising all knowledge necessary for aviation safety. The system provides intelligent knowledge support for the safety analysis of aircraft from the perspective of control system, including the accurate positioning of control elements and thorough acquisition of control conditions. Experiments were conducted to confirm the accuracy of the proposed method, and the 56,853 knowledge triples contained in the knowledge system supported its reliability. A few examples of knowledge retrieval are provided, focusing on the interaction processes of socio-technical elements during aircraft missions. It takes only a few seconds to acquire the knowledge required for safety analysis. The examples show how the hybrid methodology and knowledge system can be utilized to increase the efficiency of safety analysis for socio-technical systems while advancing intelligent knowledge applications in the aviation domain.

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Section: Knowledge Application In Aviation Safety Fieldmentioning

confidence: 78%

A hybrid methodology for knowledge organization and application of Chinese civil aviation regulations from mission safety support perspective

Niu,

Ma,

She

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part G:

Self Cite

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“…According to the synchronous risky virtual trajectory segment, the optimum arrival time when the separation distances between aircraft i and other aircraft reach the minimum value, can be calculated through equation (18).…”

Section: Ideal Maneuver Velocity Back To Initial Trajectorymentioning

confidence: 99%

“…x i ðtÞ � x j ðtÞ y i ðtÞ � y j ðtÞ 2 (18) where ðx i ðt ij Þ; y i ðt ij ÞÞ and ðx j ðt ij Þ; y j ðt ij ÞÞ indicate the geographical positions of aircraft i and j, respectively. The parameter ½t s ; t e � expresses the boundary time of the virtual trajectory segment with potential conflict risk.…”

Section: Ideal Maneuver Velocity Back To Initial Trajectorymentioning

confidence: 99%

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A decentralized method for collision detection and avoidance applied to civil aircraft

Niu

Han

2020

Proceedings of the Institution of Mechanical Engineers, Part G:

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With the increasing density level of airspace, the flawed logic of resolution in air conflict has become a potential hazard to keep flight safety for civil aviation. A powerful decision-support system is needed to identify and resolve potential conflicts on planned trajectory in advance. Existing studies on this subject mainly focus on the centralized means, but seldom consider the decentralized approaches. In this paper, a decentralized method is proposed so that each aircraft can generate the collision-free Reference Business Trajectory (RBT) autonomously, and resolve potential conflicts while conforming to the unified rules. Firstly, a Synchronous Discrete-Time-Discrete-Space trajectory modeling is developed to divide the continuous planned trajectory into multiple trajectory segments according to motion state. Thus, the collision can be accurately located at one certain risky segment, and the corresponding collision time can be acquired precisely. Through a weight analysis of collision time, the critical trajectory segment is determined to implement the task of conflict resolution. Then, the Optimal Reciprocal Collision Avoidance (ORCA) algorithm is adopted and extended to determine the collision-free maneuver with the consideration of direction selectivity. At last, the Trajectory Change Points (TCPs) are achieved by the quadratic program for each aircraft. The proposed method can help aircraft generate collision-free RBT in decentralized way successfully. Several simulations are conducted to confirm the validity and efficiency of the proposed approach.

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Study on Safety Analysis Method to Task Process of Civil Aircraft Weather Radar System

Niu

Han

et al. 2020

西北工业大学学报

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To solve the task-process-safety problem of airborne weather radar system, a set of case-inspired safety analysis method is proposed based on the STAMP(Systems-Theoretic Accident Model and Process). Taking weather radar system's task process in approaching stage as an example, a hierarchical control structure is constructed to identify unsafe control actions during the task process, and analyze the potential hazard causes associating with unsafe control actions. Then a safe flight control structure model is constructed and the accident case of Delta Airlines is analyzed to optimize the model. The safety of system task process is improved through putting forward the safe constraints which can control the propagation mechanism of accident. It is indicated through the above analysis that the method can comprehensively identify the potential hazard causes of system, and provide technical support for the safety design of airborne weather radar system.

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Hazard Analysis of Traffic Collision Avoidance System Based on STAMP Model

Cited by 4 publications

References 12 publications

A hybrid methodology for knowledge organization and application of Chinese civil aviation regulations from mission safety support perspective

A hybrid methodology for knowledge organization and application of Chinese civil aviation regulations from mission safety support perspective

A decentralized method for collision detection and avoidance applied to civil aircraft

Study on Safety Analysis Method to Task Process of Civil Aircraft Weather Radar System

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