Method for identifying and modeling environmental disturbance factors of human-computer interaction system reliability and safety

Abstract

This invention provides a method for identifying and modeling environmental disturbance factors affecting the reliability and safety of human-computer interaction systems, including: (1) constructing a profile environmental element sequence; (2) identifying environmental disturbance factors; (3) modeling environmental disturbance factors; and (4) calculating the consequences state. This invention comprehensively considers environmental disturbance factors affecting the reliability and safety of human-computer interaction systems and models the identified factors, providing a basis for subsequent quantitative evaluation of their impact on system reliability and safety, making the results more scientific and reasonable.

Description

Technical Field

[0001] This invention relates to a method for identifying and modeling environmental disturbance factors affecting the reliability and safety of human-computer interaction systems, belonging to the fields of safety technology and reliability technology. Background Technology

[0002] With the development of deep space exploration technology, more and more satellite / probe models are being developed and put into use. The assembly, launch, remote operation, and return of satellites / probes involve many mission and safety risks caused by human error, equipment failure, and environmental disturbances. This patent addresses environmental factors to provide technical support for ensuring mission success and system safety.

[0003] Deep space probes differ from general ground-based equipment in their unique application scenarios and operational methods. The environments during satellite / probe assembly, launch, remote operation, and return vary significantly. During assembly, the satellite / probe operates in workshops and factories, where assembly precision depends on factors such as technological sophistication and the concentration of operators. During the testing and launch phases, the satellite / probe is on the rocket, enduring specific environmental factors such as acceleration, heat, and vibration. During remote operation, the satellite / probe performs its mission in space / at its exploration site, and communication time between Earth and space increases significantly with the distance to its operational location, resulting in lengthy transmission of environmental conditions and reception of ground commands. During the return phase, in contrast to the launch and ascent phase, the satellite / probe undergoes deceleration, enduring specific environmental factors such as atmospheric drag and heat.

[0004] Existing human-computer interaction systems, such as satellites / detectors, suffer from problems such as incomplete identification of environmental disturbance factors affecting reliability and safety, and difficulty in quantifying the probability of environmental states. Therefore, there is a need for a method that comprehensively considers the factors that may affect the system's safety and reliability during human-computer interaction, and breaks through the limitations of environmental factor identification and modeling methods in human-computer interaction systems. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and propose a method for identifying and modeling environmental disturbance factors affecting the reliability and safety of human-computer interaction systems. By combining Markov processes, the method analyzes and calculates the conditions and probabilities of system environmental state transitions, making the established environmental factor model more accurate. This improves the overall accuracy of reliability and safety calculations for human-computer interaction systems and solves key problems such as quantifying the consequences of environmental factors affecting the system's reliability and safety.

[0006] The technical solution provided by this invention is as follows:

[0007] A method for identifying and modeling environmental disturbance factors affecting the reliability and safety of human-computer interaction systems includes:

[0008] Step (1): Analyze the system task profile, sort out the environmental elements involved in the human-computer interaction system interaction process from both human system and machine system perspectives, and construct a profile environmental element sequence;

[0009] Step (2): Combine the profile environmental element sequence constructed in step (1) to identify environmental disturbance factors that affect the reliability and security of the human-computer interaction system during the task process;

[0010] Step (3): For the environmental disturbance factors identified in step (2), analyze the environmental state transition conditions, and combine the Markov model to model the environmental disturbance factors and calculate the environmental state probability.

[0011] Step (4) combines the environmental disturbance factors identified in step (2) with the environmental state probabilities calculated in step (3) to determine the consequences of the environmental disturbance factors affecting the human-computer interaction system.

[0012] Furthermore, step (1), constructing the profile environment element sequence, includes the following sub-steps:

[0013] Step (1.1) Determine the composition of the human system and the machine system;

[0014] Step (1.2) determines the human-computer interaction task process;

[0015] Step (1.3): Based on the human-computer interaction task process in step (1.2), determine the operator's behavior and the machine system's actions in sequence.

[0016] Step (1.4): Based on the human-computer interaction task process in step (1.2), sort out the environmental elements involved in the human-computer interaction system interaction process;

[0017] Step (1.5): Based on the environmental elements obtained in step (1.4), construct the profile environmental element sequence.

[0018] Furthermore, step (2), which identifies factors affecting reliability and security during the human-computer interaction system task process, includes the following sub-steps:

[0019] Step (2.1): Based on the sequence of profile environment elements constructed in step (1), determine the degree of correlation between the profile environment elements and the human system, machine system, and human-computer interaction process;

[0020] Step (2.2): Based on the correlation degree determined in step (2.1), screen environmental disturbance factors that can affect the reliability and security of the human-computer interaction system.

[0021] Furthermore, the environmental disturbance factors include human system environmental disturbance factors that affect the human system alone, machine system environmental disturbance factors that affect the machine system alone, and environmental disturbance factors that act on the human-machine interaction process.

[0022] Furthermore, step (3) analyzes the environmental state transition conditions, combined with the horse

[0023] The Erkov model is used to model environmental disturbance factors and calculate the probability of environmental states, specifically including the following sub-steps:

[0024] Step (3.1): For the environmental disturbance factors screened in step (2), determine the conditions for system environmental state transition;

[0025] Step (3.2): Based on the environmental state transition conditions in step (3.1), and combined with the Markov model, model the environmental disturbance factors, divide the state regions, and calculate the probability of each state.

[0026] Furthermore, step (4) determines the consequences of environmental disturbances affecting the human-computer interaction system, specifically including:

[0027] Impact on the reliability of human systems, machine systems, and human-computer interaction tasks: Event tree modeling of environmental disturbance factors is used to determine their impact on task reliability.

[0028] Impact on the safety of human and machine systems: Fault tree modeling is performed on human and machine systems, and the impact on the safety of human and machine systems is determined by combining the fault tree model.

[0029] Furthermore, this invention also proposes a system for identifying and modeling environmental disturbance factors affecting the reliability and safety of human-computer interaction systems, comprising:

[0030] The first module analyzes the system task profile, sorts out the environmental elements involved in the human-computer interaction system interaction process from both human-system and machine-system perspectives, and constructs a profile environmental element sequence.

[0031] The second module: Based on the constructed profile environmental element sequence, identify environmental disturbance factors that affect the reliability and safety of the human-computer interaction system during the task process;

[0032] The third module: For the identified environmental disturbance factors, analyze the environmental state transition conditions, and combine Markov models to model environmental disturbance factors and calculate environmental state probabilities;

[0033] The fourth module combines the identified environmental disturbance factors with the calculated environmental state probabilities to determine the consequences of the environmental disturbance factors affecting the human-computer interaction system.

[0034] Compared with existing technologies, it has the following advantages:

[0035] (1) Traditional system environmental disturbance influencing factors are identified based on experience, while the present invention decomposes the operator’s behavior and machine system actions according to the task process, and then identifies and analyzes the environmental elements of the task profile in a targeted manner, which is more scientific, specific and reasonable.

[0036] (2) In order to perform environmental state probability calculation, this invention combines Markov model to improve the environmental disturbance factors, and divides the state region and performs state probability calculation.

[0037] (3) This invention establishes a human-computer interaction task-oriented approach to comprehensively identify and analyze the impact of environmental factors on the safety and reliability of the system. Through the analysis of the consequences of the system, the impact of different environmental factors on the safety and reliability of the human-computer system at each stage of use can be considered more comprehensively and in a more complete manner.

[0038] (4) This invention comprehensively considers environmental disturbance factors that affect the reliability and safety of human-computer interaction systems, and models the identified factors, providing a basis for subsequent quantitative evaluation of their impact on system reliability and safety, making the results more scientific and reasonable. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the method flow of the present invention;

[0040] Figure 2 This is a schematic diagram of the visibility state transition affected by lunar dust.

[0041] Figure 3 An event tree diagram illustrating the impact of lunar dust on visibility as the initial cause event;

[0042] Figure 4 This is a schematic diagram of the fault tree for a stuck robotic arm. Detailed Implementation

[0043] The features and advantages of the present invention will become clearer and more explicit from the following detailed description.

[0044] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0045] like Figure 1 As shown, this invention proposes a method for identifying and modeling environmental disturbance factors affecting the reliability and security of human-computer interaction systems, including:

[0046] Step (1): Analyze the system task profile, sort out the environmental elements involved in the human-computer interaction system interaction process from both human system and machine system perspectives, and construct a profile environmental element sequence;

[0047] Step (2): Combine the profile environmental element sequence constructed in step (1) to identify environmental disturbance factors that affect the reliability and security of the human-computer interaction system during the task process;

[0048] Step (3): For the environmental disturbance factors identified in step (2), analyze the environmental state transition conditions, and combine the Markov model to model the environmental disturbance factors and calculate the environmental state probability.

[0049] Step (4) combines the environmental disturbance factors identified in step (2) with the environmental state probabilities calculated in step (3) to determine the consequences of the environmental disturbance factors affecting the human-computer interaction system.

[0050] Furthermore, step (1), constructing the profile environment element sequence, includes the following sub-steps:

[0051] Step (1.1) Determine the composition of the human system and the machine system;

[0052] Step (1.2) determines the human-computer interaction task process;

[0053] Step (1.3): Based on the human-computer interaction task process in step (1.2), determine the operator's behavior and the machine system's actions in sequence.

[0054] Step (1.4): Based on the human-computer interaction task process in step (1.2), sort out the environmental elements involved in the human-computer interaction system interaction process;

[0055] Step (1.5): Based on the environmental elements obtained in step (1.4), construct the profile environmental element sequence.

[0056] Furthermore, step (2), which identifies factors affecting reliability and security during the human-computer interaction system task process, includes the following sub-steps:

[0057] Step (2.1): Based on the sequence of profile environment elements constructed in step (1), determine the degree of correlation between the profile environment elements and the human system, machine system, and human-computer interaction process;

[0058] Step (2.2): Based on the correlation degree determined in step (2.1), screen environmental disturbance factors that can affect the reliability and security of the human-computer interaction system.

[0059] Furthermore, the environmental disturbance factors include human system environmental disturbance factors that affect the human system alone, machine system environmental disturbance factors that affect the machine system alone, and environmental disturbance factors that act on the human-machine interaction process.

[0060] Furthermore, step (3) analyzes the environmental state transition conditions, combined with the horse

[0061] The Erkov model is used to model environmental disturbance factors and calculate the probability of environmental states, specifically including the following sub-steps:

[0062] Step (3.1): For the environmental disturbance factors screened in step (2), determine the conditions for system environmental state transition;

[0063] Step (3.2): Based on the environmental state transition conditions in step (3.1), and combined with the Markov model, model the environmental disturbance factors, divide the state regions, and calculate the probability of each state.

[0064] Furthermore, step (4) determines the consequences of environmental disturbances affecting the human-computer interaction system, specifically including:

[0065] Impact on the reliability of human systems, machine systems, and human-computer interaction tasks: Event tree modeling of environmental disturbance factors is used to determine their impact on task reliability.

[0066] Impact on the safety of human and machine systems: Fault tree modeling is performed on human and machine systems, and the impact on the safety of human and machine systems is determined by combining the fault tree model.

[0067] Furthermore, this invention also proposes a system for identifying and modeling environmental disturbance factors affecting the reliability and safety of human-computer interaction systems, comprising:

[0068] The first module analyzes the system task profile, sorts out the environmental elements involved in the human-computer interaction system interaction process from both human-system and machine-system perspectives, and constructs a profile environmental element sequence.

[0069] The second module: Based on the constructed profile environmental element sequence, identify environmental disturbance factors that affect the reliability and safety of the human-computer interaction system during the task process;

[0070] The third module: For the identified environmental disturbance factors, analyze the environmental state transition conditions, and combine Markov models to model environmental disturbance factors and calculate environmental state probabilities;

[0071] The fourth module combines the identified environmental disturbance factors with the calculated environmental state probabilities to determine the consequences of the environmental disturbance factors affecting the human-computer interaction system.

[0072] This invention comprehensively considers environmental disturbance factors that affect the reliability and safety of human-computer interaction systems, and models the identified factors, providing a basis for subsequent quantitative evaluation of their impact on system reliability and safety, making the results more scientific and reasonable.

[0073] Example:

[0074] This invention proposes a method for identifying and modeling environmental disturbance factors affecting the reliability and safety of human-computer interaction systems. The following detailed description, with reference to the accompanying drawings, uses the Chang'e-5 lunar surface sampling remote operation mission as an example. The process is as follows: Figure 1 As shown, the specific steps are as follows:

[0075] Step (1): Analyze the system task profile, and sort out the environmental elements involved in the human-computer interaction system interaction process along two lines: human system and machine system, and construct a profile environmental element sequence;

[0076] 1.1 Analysis of Human-Machine System Composition

[0077] The human-machine system involved in the Chang'e 5 lunar surface sampling mission consists of the ground command operator and the sampler.

[0078] The human system (operator) is responsible for receiving the information returned by the sampler and issuing operating instructions;

[0079] The system (sampler) is responsible for collecting information such as lunar surface topography and transmitting it back to the ground, as well as receiving ground operation commands.

[0080] 1.2 Analysis of Human-Computer Interaction Task Process

[0081] The process of Chang'e 5 performing lunar surface sampling remote operation is as follows: Through the probe's environmental acquisition system, parameters (such as terrain, landforms, ground hardness, etc.) are extracted from the real environment and transmitted back to the ground; the ground constructs a virtual environment, formulates an operation plan and simulates the operation process, and sends operation commands; after receiving the commands, the probe moves to the designated location to perform the relevant actions.

[0082] Humans and machines communicate bidirectionally via space-ground communication to exchange instructions and feedback information, ultimately completing the task.

[0083] 1.3 Operator Behavior and Machine System Action Analysis

[0084] During the Chang'e-5 lunar surface sampling remote operation mission, the operator's actions mainly included: receiving lunar surface environmental parameters, constructing a virtual environment, specifying the operation plan, and sending operation commands; the machine system's actions mainly included: collecting lunar surface environmental parameters, transmitting environmental parameters back, receiving ground commands, and completing the command actions.

[0085] 1.4 Overview of Environmental Elements Involved in the Human-Computer Interaction System Interaction Process

[0086] During the Chang'e 5 lunar surface sampling remote operation mission, the operators were in the ground control room, where the main environmental factors were indoor temperature, humidity, noise, etc.; the machine system was on the lunar surface, where the main environmental factors were lunar surface flatness, temperature, humidity, lunar dust, etc.; and due to the difference between Earth and space, signal propagation was affected by the real-time status of the relay satellite during the remote operation process.

[0087] 1.5 Constructing the Profile Environment Element Sequence

[0088] Operator profile environmental element sequence: temperature, humidity, air quality, and noise level in the control room;

[0089] Sampler profile environmental element sequence: lunar surface topography complexity, temperature, humidity, and environmental visibility;

[0090] Mission profile environmental impact sequence: distance between relay satellite and sampler, interference with space-to-ground communication environment.

[0091] Step (II) Identify factors that affect the reliability and security of the human-computer interaction system during the task process, including environmental disturbances that affect the human system or the machine system individually or act on the human-computer interaction process.

[0092] 2.1 Correlation Analysis of Profile Environmental Elements with Human Systems, Machine Systems, and Human-Computer Interaction Processes

[0093] The environmental elements of the operator profile mainly affect the operator's physiological and psychological state. For example, excessively high or low temperatures can cause physiological discomfort to the operator, while excessive noise can cause emotional instability to the operator, thus affecting the correctness and efficiency of decision-making.

[0094] The environmental elements of the sampler profile mainly affect the difficulty of the sampler's mission. For example, the flatness of the lunar surface will affect the speed at which the sampler travels to the target location; in the presence of lunar dust, the accuracy of the sampler's collection of information about the surrounding environment may be insufficient, thus affecting the success or failure of the mission.

[0095] The environmental factors affecting the mission profile are mainly influenced by communication methods such as relay satellites. Although the relay satellites are geostationary satellites, the sampler's movement on the lunar surface will cause it to be at different distances from available relay satellites, and the information transmission rate will also be affected.

[0096] 2.2 Screening of environmental disturbance factors affecting system reliability and security

[0097] Further identified environmental disturbances that affect system reliability and security are shown in Table 1.

[0098] Table 1 Environmental disturbance factors for lunar surface sampling remote operation mission

[0099]

[0100] Step (3): Analyze the environmental state transition conditions, and use the Markov model to model environmental disturbance factors and calculate state probabilities.

[0101] 3.1 Analyze the conditions for system environmental state transitions based on the identified factors.

[0102] Taking the influence of lunar dust as an example, we analyze the system state transition conditions.

[0103] Lunar dust can remain charged for extended periods, and the movement of objects such as lunar rovers and samplers can cause dust to be stirred up. Studies have shown that lunar soil particles can become charged under the influence of the photoelectric effect and solar wind radiation, and then float and move for a long time. When certain effects accumulate to a certain level at the sampler's location, a large amount of charged lunar dust will float around the sampler and adhere to it to a certain extent, potentially causing a decrease in the sensitivity of the optical system, malfunctions in the thermal control system, and other consequences, placing the system in an unsafe and unreliable state.

[0104] 3.2 Using Markov models, environmental disturbance factors are modeled, state regions are divided, and the probabilities of each state are calculated.

[0105] Define the environmental factors' states, determine the state transition relationships, and draw a state transition diagram. Taking the impact of lunar dust on visibility as an example, the state transition diagram is shown below. Figure 2 As shown in the figure, S1 represents excellent visibility; S2 represents moderate visibility; S3 represents poor visibility; and S4 represents extremely poor visibility.

[0106] Step (iv): Analyze the consequences of environmental disturbances affecting the system.

[0107] 4.1 Analysis of the Reliability Impact on Human Systems, Machine Systems, and Human-Computer Interaction Tasks

[0108] Event tree modeling was performed on environmental disturbances, and their impact on task reliability was analyzed using the event tree. Lunar dust affecting visibility was used as the initial event in the event tree analysis. Figure 3 As shown.

[0109] 4.2 Analysis of the impact on the safety of human and machine systems

[0110] Fault tree modeling is performed on the human and machine systems, and the impact on the safety of the human and machine systems is analyzed based on the fault tree model. The fault tree model for robotic arm jamming is shown below. Figure 4 As shown.

[0111] This invention establishes a human-computer interaction task-oriented approach to comprehensively identify and analyze the impact of environmental factors on system safety and reliability. Through the analysis of system consequences, it can more comprehensively consider the impact of different environmental factors on the safety and reliability of the human-computer system at each stage of its use.

[0112] The parts of this invention not described in detail are common knowledge to those skilled in the art.

Claims

1. A method for identifying and modeling environmental disturbance factors affecting the reliability and safety of a human-computer interaction system, characterized in that, include: Step (1): Analyze the system task profile, sort out the environmental elements involved in the human-computer interaction system interaction process from both human system and machine system perspectives, and construct a profile environmental element sequence; Step (2): Combine the profile environmental element sequence constructed in step (1) to identify environmental disturbance factors that affect the reliability and security of the human-computer interaction system during the task process; Step (3): For the environmental disturbance factors identified in step (2), analyze the environmental state transition conditions, and combine the Markov model to model the environmental disturbance factors and calculate the environmental state probability. Step (4): Combining the environmental disturbance factors identified in step (2) and the environmental state probability calculated in step (3), determine the consequences of the environmental disturbance factors affecting the human-computer interaction system. Step (3) analyzes the environmental state transition conditions, and combines the Markov model to model environmental disturbance factors and calculate the probability of environmental states. Specifically, it includes the following sub-steps: Step (3.1): For the environmental disturbance factors screened in step (2), determine the conditions for system environmental state transition; Step (3.2): Based on the environmental state transition conditions in step (3.1), and combined with the Markov model, model the environmental disturbance factors, divide the state regions, and calculate the probability of each state. Step (4) determines the consequences of environmental disturbances affecting the human-computer interaction system, specifically including: Impact on the reliability of human systems, machine systems, and human-computer interaction tasks: Event tree modeling of environmental disturbance factors is used to determine their impact on task reliability. Impact on the safety of human and machine systems: Fault tree modeling is performed on human and machine systems, and the impact on the safety of human and machine systems is determined by combining the fault tree model.

2. The method for identifying and modeling environmental disturbance factors affecting the reliability and safety of a human-computer interaction system according to claim 1, characterized in that: Step (1), which involves constructing the profile environment element sequence, includes the following sub-steps: Step (1.1) Determine the composition of the human system and the machine system; Step (1.2) determines the human-computer interaction task process; Step (1.3): Based on the human-computer interaction task process in step (1.2), determine the operator's behavior and the machine system's actions in sequence. Step (1.4): Based on the human-computer interaction task process in step (1.2), sort out the environmental elements involved in the human-computer interaction system interaction process; Step (1.5): Based on the environmental elements obtained in step (1.4), construct the profile environmental element sequence.

3. The method for identifying and modeling environmental disturbance factors affecting the reliability and safety of a human-computer interaction system according to claim 1, characterized in that: Step (2) of identifying factors affecting reliability and security during the human-computer interaction system task includes the following sub-steps: Step (2.1): Based on the sequence of profile environment elements constructed in step (1), determine the degree of correlation between the profile environment elements and the human system, machine system, and human-computer interaction process; Step (2.2): Based on the correlation degree determined in step (2.1), screen environmental disturbance factors that can affect the reliability and security of the human-computer interaction system.

4. The method for identifying and modeling environmental disturbance factors affecting the reliability and safety of a human-computer interaction system according to claim 3, characterized in that: The environmental disturbance factors include environmental disturbance factors that affect the human system alone, environmental disturbance factors that affect the machine system alone, and environmental disturbance factors that act on the human-machine interaction process.

5. A system for identifying and modeling environmental disturbance factors affecting the reliability and safety of a human-computer interaction system, characterized in that... include: The first module analyzes the system task profile, sorts out the environmental elements involved in the human-computer interaction system interaction process from both human-system and machine-system perspectives, and constructs a profile environmental element sequence. The second module: Based on the constructed profile environmental element sequence, identify environmental disturbance factors that affect the reliability and safety of the human-computer interaction system during the task process; The third module: For the identified environmental disturbance factors, analyze the environmental state transition conditions, and combine Markov models to model environmental disturbance factors and calculate environmental state probabilities; The fourth module combines the identified environmental disturbance factors with the calculated environmental state probabilities to determine the consequences of the environmental disturbance factors affecting the human-computer interaction system. The analysis of environmental state transition conditions, combined with Markov models to model environmental disturbance factors and calculate environmental state probabilities, specifically includes the following sub-steps: Step (3.1): Determine the conditions for system environmental state transition based on the screened environmental disturbance factors; Step (3.2): Based on the environmental state transition conditions in step (3.1), and combined with the Markov model, model the environmental disturbance factors, divide the state regions, and calculate the probability of each state. The determination of the consequences of environmental disturbances affecting the human-computer interaction system specifically includes: Impact on the reliability of human systems, machine systems, and human-computer interaction tasks: Event tree modeling of environmental disturbance factors is used to determine their impact on task reliability. Impact on the safety of human and machine systems: Fault tree modeling is performed on human and machine systems, and the impact on the safety of human and machine systems is determined by combining the fault tree model.

6. The system for identifying and modeling environmental disturbance factors related to the reliability and safety of a human-computer interaction system according to claim 5, characterized in that: The construction of the profile environment element sequence includes the following sub-steps: Step (1.1) Determine the composition of the human system and the machine system; Step (1.2) determines the human-computer interaction task process; Step (1.3): Based on the human-computer interaction task process in step (1.2), determine the operator's behavior and the machine system's actions in sequence. Step (1.4): Based on the human-computer interaction task process in step (1.2), sort out the environmental elements involved in the human-computer interaction system interaction process; Step (1.5): Based on the environmental elements obtained in step (1.4), construct the profile environmental element sequence.

7. The system for identifying and modeling environmental disturbance factors related to the reliability and safety of a human-computer interaction system according to claim 5, characterized in that: Factors affecting reliability and security during the identification of human-computer interaction system tasks include the following sub-steps: Step (2.1): Based on the constructed sequence of profile environment elements, determine the degree of correlation between the profile environment elements and the human system, machine system, and human-computer interaction process; Step (2.2): Based on the correlation degree determined in step (2.1), screen out environmental disturbance factors that can affect the reliability and security of the human-computer interaction system; The environmental disturbance factors include environmental disturbance factors that affect the human system alone, environmental disturbance factors that affect the machine system alone, and environmental disturbance factors that act on the human-machine interaction process.

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