Typical task-oriented ship equipment environment adaptability assessment method

Abstract

The invention discloses a typical task-oriented ship equipment environmental adaptability evaluation method. The method comprises the following steps of 1) constructing environmental influence factor indexes influencing ship equipment; 2) carrying out grade grading and assignment on the environmental factor influence; 3) based on the typical ship task, decomposing the typical ship task into a top task, a subtask, a unit task and equipment for executing the unit task from top to bottom according to four levels of an overall level, a system level, a subsystem level and an equipment level; 4) analyzing a logic combination relationship between each level of task and equipment, wherein the logic combination relationship comprises series connection, and parallel connection or parallel connection; (5) environment factor influence assignment evaluation is carried out for a certain environment factor; and 6) carrying out total assignment on the influence degrees of the multiple environmental factors. According to the invention, a set of environment adaptability analysis and evaluation method which can be decomposed hierarchically and is associated logically is established, and the scientificity and rationality of equipment environment adaptability evaluation are improved.

Description

Technical Field

[0001] The invention relates to environmental adaptability assessment technology, and in particular to an environmental adaptability assessment method for ship equipment oriented to typical tasks. Background Art

[0002] The operating environment of ship equipment is complex. In the various stages of development, construction, testing and mooring, it may be subjected to various harsh environments. Therefore, environmental adaptability is regarded as one of the important quality characteristics of ship equipment and has always attracted much attention. At present, for individual equipment, special environmental adaptability tests are mainly carried out, and the environmental adaptability of individual equipment is evaluated based on the test results. However, for ship systems and overall, due to the lack of environmental adaptability test methods, long test cycles, and difficulty in collecting and analyzing test data, there is still a lack of unified environmental adaptability evaluation methods in the industry. In order to support the positive design of the environmental adaptability of ship equipment, it is necessary to establish a set of hierarchically decomposable and logically related environmental adaptability analysis and evaluation methods from multiple dimensions such as overall, system, and equipment, so as to improve the scientificity and rationality of equipment environmental adaptability evaluation. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method for evaluating the environmental adaptability of ship equipment for typical tasks in view of the defects in the prior art.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a typical task-oriented marine equipment environmental adaptability assessment method, comprising the following steps:

[0005] 1) Construct environmental impact factor indicators that affect ship equipment;

[0006] Overall indicators: Environmental adaptability of ship equipment;

[0007] The first level indicator is marine environment B 1 、Climate and environment B 2 、Mechanical environment B 3 and battlefield environment B 4 ;

[0008] The second level indicators are:

[0009] Marine environment: Marine life C 1 , Wind C 2 、Lang C 3 , shock C 4 、Salt spray C 5 、Mold C 6 ;

[0010] Climate environment: High temperature C 7 , low temperature C 8 , damp heat C9 ;

[0011] Mechanical environment: Vibration C 10 、Impact C 11 , Swing C 12 , tilt C 13 ;

[0012] Battlefield environment: electromagnetic radiation C 14 、Biological Agents C 15 ;

[0013] 2) Classify and assign values ​​to the impacts of environmental factors;

[0014] There are six levels of grading, including: no impact, minor impact, minor impact, medium impact, high impact, and severe impact; the corresponding value R intervals are: no impact: 0; minor impact: 0<R≤1; minor impact: 1<R≤2; medium impact: 2<R≤3; high impact: 3<R≤4; severe impact: 4<R≤5;

[0015] 3) Based on typical ship tasks, the typical ship tasks are decomposed from top to bottom into four levels: overall level, system level, subsystem level and equipment level: top-level tasks, subtasks, unit tasks, and equipment for executing unit tasks;

[0016] 4) Analyze the logical combination relationship between tasks and equipment at each level, including series connection, parallel connection, or parallel connection;

[0017] Among them, the series connection of tasks A and B means that task B must be driven by task A, and the corresponding environmental factor impact assignment R is R = max(R A ,R B ); Task A and B are connected in parallel, which means that task C can be driven only after tasks A and B are successfully executed at the same time. The corresponding environmental factor impact assignment R is R = max (R A ,R B ,R C ); Task A and B or parallel connection means that as long as one of tasks A and B is successfully executed, task C will be driven; the corresponding environmental factor impact assignment R is R = max (min (R A ,R B ),R C );

[0018] 5) Multi-level progressive environmental factor impact assessment method

[0019] For a certain environmental factor C i , let the value of the impact degree of the top-level task be R top-task-i , the value of the degree of influence of the subtask is assigned to R sub-task-i, the value of the unit task's impact is assigned to R unit-i , the value of the impact degree of the equipment is assigned as R device-i ; Define function f(x) to represent the logical combination relationship of each subtask set, f(y) to represent the logical combination relationship of each unit task set, and f(z) to represent the logical combination relationship of each device task set. Analyze the impact of environmental factors on the top-level task, subtask, unit task, and the device that executes the unit task at each level, as follows:

[0020] 5.1) Equipment environmental factors affect the assignment;

[0021] According to the environmental adaptability test results and historical evaluation data of the equipment itself, the environmental factor C i The equipment environment factors affect the assignment of R device-i ;

[0022] 5.2) Assignment of the degree of impact of the task environment;

[0023] According to the logical combination relationship between tasks and equipment at each level and the corresponding environmental factor impact assignment, the environmental factor impact assignment at each level is analyzed, and the relevant function expression is as follows:

[0024] Unit task environmental factors affect the assignment:

[0025] R unit-i =R(device 1 , device 2 ,…device m ,f(z))

[0026] Subtask environmental factors affect the assignment:

[0027] R sub-task-i =R(unit 1 ,unit 2 ,…unit n ,f(y))

[0028] Assignment of the environmental impact level of the top-level task:

[0029] R top-task-i =R(sub-unit 1 , sub-unit 2 ,…sub-unit s ,f(x))

[0030] 6) Total value of the impact of multiple environmental factors;

[0031] Assume that the environmental factor C i The influence weight is ω i , and obtain the total value of the impact degree of multiple environmental factors at different levels.

[0032] The beneficial effects produced by the present invention are:

[0033] The present invention establishes a set of environmental adaptability analysis and evaluation methods that are hierarchically decomposable and logically related, thereby improving the scientificity and rationality of equipment environmental adaptability evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0035] Figure 1 is an evaluation system indicator diagram of an embodiment of the present invention;

[0036] Figure 2 is a typical task decomposition diagram of an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the logical relationship of the unit task / equipment combination of an embodiment of the present invention;

[0038] Figure 4 It is a schematic diagram of the decomposition of the navigation control task according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] like Figure 1 As shown, a typical mission-oriented ship equipment environmental adaptability assessment method includes the following steps:

[0041] 1) Construct environmental impact factor indicators that affect ship equipment;

[0042] Overall indicators: Environmental adaptability of ship equipment;

[0043] The first level indicator is marine environment B 1 、Climate and environment B 2 、Mechanical environment B 3 and battlefield environment B 4 ;

[0044] The second level indicators are:

[0045] Marine Environment: Marine Life C 1 , Wind C 2 、Lang C 3 , shock C 4 、Salt spray C 5 、Mold C 6 ;

[0046] Climate environment: High temperature C 7 , low temperature C 8 , damp heat C 9 ;

[0047] Mechanical environment: Vibration C 10 、Impact C 11 , Swing C 12 , tilt C 13 ;

[0048] Battlefield environment: electromagnetic radiation C 14 、Biological Agents C 15 ;

[0049] 2) Classify and assign values ​​to the impacts of environmental factors;

[0050] There are six levels of grading, including: no impact, minor impact, minor impact, medium impact, high impact, and severe impact; the corresponding value R intervals are: no impact: 0; minor impact: 0<R≤1; minor impact: 1<R≤2; medium impact: 2<R≤3; high impact: 3<R≤4; severe impact: 4<R≤5; see Table 1 for details;

[0051] Table 1 Environmental factor system (equipment) impact level

[0052]

[0053] 3) Based on typical ship tasks, the typical ship tasks are decomposed from top to bottom into four levels: overall level, system level, subsystem level and equipment level: top-level tasks, subtasks, unit tasks, and equipment for executing unit tasks; Figure 2 ;

[0054] 4) Analyze the logical combination relationship between tasks and equipment at each level. The logical combination relationship includes series connection, parallel connection, or parallel connection; Figure 3 ;

[0055] Among them, the series connection of tasks A and B means that task B must be driven by task A, and the corresponding environmental factor impact assignment R is R = max(R A ,R B ); Task A and B are connected in parallel, which means that task C can be driven only after tasks A and B are successfully executed at the same time. The corresponding environmental factor impact assignment R is R = max (R A ,R B ,R C ); Task A and B or parallel connection means that as long as one of tasks A and B is successfully executed, task C will be driven; the corresponding environmental factor impact assignment R is R = max (min (R A ,R B ),RC );

[0056] 5) Multi-level progressive environmental factor impact assessment method

[0057] For a certain environmental factor C i , let the value of the impact degree of the top-level task be R top-task-i , the value of the degree of influence of the subtask is assigned to R sub-task-i , the value of the unit task's impact is assigned to R unit-i , the value of the impact degree of the equipment is assigned as R device-i ; Define function f(x) to represent the logical combination relationship of each subtask set, f(y) to represent the logical combination relationship of each unit task set, and f(z) to represent the logical combination relationship of each device task set. Analyze the impact of environmental factors on the top-level task, subtask, unit task, and the device that executes the unit task at each level, as follows:

[0058] 5.1) Equipment environmental factors affect the assignment;

[0059] According to the environmental adaptability test results and historical evaluation data of the equipment itself, the environmental factor C i The equipment environment factors affect the assignment of R device-i ;

[0060] 5.2) Assignment of the degree of impact of the task environment;

[0061] According to the logical combination relationship between tasks and equipment at each level and the corresponding environmental factor impact assignment, the environmental factor impact assignment at each level is analyzed, and the relevant function expression is as follows:

[0062] Unit task environment factors affect the assignment:

[0063] R unit-i =R(device 1 , device 2 ,…device m ,f(z))

[0064] Subtask environmental factors affect the assignment:

[0065] R sub-task-i =R(unit 1 , unit 2 ,…unit n ,f(y))

[0066] Assignment of the environmental impact level of the top-level task:

[0067] R top-task-i =R(sub-unit 1 , sub-unit2 ,…sub-unit s ,f(x))

[0068] 6) Total value of the impact of multiple environmental factors;

[0069] Assume that the environmental factor C i The influence weight is ω i , obtain the total value of the impact degree of multiple environmental factors at different levels;

[0070] It can be expressed as:

[0071] R device-总 =∑ω i R device-i ;

[0072] R unit-总 =∑ω i R unit-i ;

[0073] R sub-task-总 =∑ω o R sub-task-i ;

[0074] R top-task-总 =∑ω o R top-task-i .

[0075] Taking the navigation control top-level task as an example, the specific implementation method is described as follows:

[0076] (1) Top-level task decomposition. Combined with typical navigation and control task scenarios, the tasks are decomposed from top to bottom from “top-level task – subtask – equipment”, such as Figure 4 shown.

[0077] (2) Determine environmental impact factors. The highest sea conditions that navigation control needs to meet are sorted out. Based on the main failures that caused the equipment navigation control mission to fail in the past, six environmental impact factors, including tilt, sway, high temperature, humidity, vibration, and impact, are selected from the above main environmental impact factors in typical navigation control mission scenarios. The specific analysis is as follows:

[0078] (3) Impact assignment under a single environmental impact factor

[0079] First, consider the impact degree of the environmental factor "high temperature". According to the hierarchy of "equipment-subtask-top task", calculate the impact value of environmental factors at each level from bottom to top.

[0080] First, according to the test results of each device in accordance with GJB150.3 "High Temperature Test of Environmental Test Methods for Military Equipment", the impact of the three devices "automatic steering", "steering gear" and "rudder" on the "high temperature" environmental factor is evaluated and assigned values ​​of 1.0, 1.2 and 0.5 respectively; based on the serial logical relationship of the three devices "automatic steering", "steering gear" and "rudder", according to the principle of "environmental factor impact assignment under different logical relationships", the impact of the "steering gear control" subtask on the "high temperature" environmental factor is quantitatively evaluated and assigned a value of 1.2. Using a similar calculation method, the impact of the subtasks such as "providing power" and "positioning navigation" on the "high temperature" environmental factor can be assigned values ​​of 1.8 and 0.5 respectively.

[0081] Based on the serial logical relationship of the three sub-task layers of "providing power", "steering gear control" and "positioning and navigation", and according to the principle of "assigning values ​​to the impact of environmental factors under different logical relationships", the impact of the "high temperature" environmental factor on the navigation control task is quantitatively evaluated and assigned a value of 1.8.

[0082] (4) Assignment of comprehensive impact of multiple environmental factors. The impact weights of different environmental factors obtained based on industry experience are adopted. i , as shown in Table 1. At the same time, according to the impact assignment of each single environmental impact factor, the comprehensive impact assignment of multiple environmental factors is calculated to be 1.94.

[0083] Table 2 Weights and impact values ​​of various environmental impact factors

[0084] Environmental factors tilt swing high temperature Damp heat vibration Shock Weight 0.15 0.2 0.22 0.12 0.15 0.16 Impact Assignment 1.8 2.6 1.8 1.0 1.8 2.3

[0085] According to the results of the impact degree assignment of "Environmental Factors—System (Equipment)" in Table 2 and the definition of the impact degree, it can be seen that the comprehensive environment of the ship, such as "tilting, swaying, high temperature, humidity, vibration, and impact", has little impact on the navigation and control tasks. This also shows that the ship has a high environmental adaptability in maintaining navigation and control capabilities.

[0086] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A typical mission-oriented ship equipment environmental adaptability assessment method, characterized in that: The following steps are involved: 1) Construct environmental impact factor indicators that affect ship equipment; Overall indicators: Environmental adaptability of ship equipment; The first-tier indicators are marine environment B1, climate environment B2, mechanical environment B3, and battlefield environment B4; The second level indicators are: Marine environment: marine life C1, wind C2, waves C3, vibration C4, salt spray C5, mold C6; Climate environment: high temperature C7, low temperature C8, hot and humid C9; Mechanical environment: Vibration C 10 、Impact C 11 , Swing C 12 , tilt C 13 ; Battlefield environment: electromagnetic radiation C 14 、Biological Agents C 15 ; 2) Classify and assign values ​​to the impacts of environmental factors; 3) Based on typical ship tasks, the typical ship tasks are decomposed from top to bottom into four levels: overall level, system level, subsystem level and equipment level: top-level tasks, subtasks, unit tasks, and equipment for executing unit tasks; 4) Analyze the logical combination relationship between tasks and equipment at each level, including series connection, parallel connection, or parallel connection; Among them, the series connection of tasks A and B means that task B must be driven by task A, and the corresponding environmental factor impact assignment R is R = max(R A ,R B ); Task A and B are connected in parallel, which means that task C can be driven only after tasks A and B are successfully executed at the same time. The corresponding environmental factor impact assignment R is R = max (R A ,R B ,R C ); Task A and B or parallel connection means that as long as one of tasks A and B is successfully executed, task C will be driven; the corresponding environmental factor impact assignment R is R = max (min (R A ,R B ),R C ); 5) Carry out environmental factor impact assessment for a certain environmental factor; 6) Assign a total value to the impact degree of multiple environmental factors.

2. The method for evaluating the environmental adaptability of ship equipment for typical tasks according to claim 1 is characterized in that: In the step 2), the level classification is divided into six levels, including: no impact, minor impact, minor impact, medium impact, high impact, and severe impact; the corresponding value assignment R interval is: no impact: 0; minor impact: 0<R≤1; small impact: 1<R≤2; medium impact: 2<R≤3; high impact: 3<R≤4; severe impact: 4<R≤5.

3. The method for evaluating the environmental adaptability of ship equipment for typical tasks according to claim 1 is characterized in that: For a certain environmental factor C i , let the value of the impact degree of the top-level task be R top-task-i , the value of the degree of influence of the subtask is assigned to R sub-task-i , the value of the unit task's impact is assigned to R unit-i , the value of the impact degree of the equipment is assigned as R device-i ; Define the function f(x) to represent the logical combination relationship of each subtask set, f(y) to represent the logical combination relationship of each unit task set, and f(z) to represent the logical combination relationship of each device task set. Analyze the impact of environmental factors at each level of top-level tasks, subtasks, unit tasks, and devices that execute unit tasks.

4. The method for evaluating the environmental adaptability of ship equipment for typical tasks according to claim 3 is characterized in that: Analyze the impact of environmental factors on top-level tasks, subtasks, unit tasks, and equipment that executes unit tasks at each level, as follows: 5.1) Equipment environmental factors affect the assignment; According to the environmental adaptability test results and historical evaluation data of the equipment itself, the environmental factor C i The equipment environment factors affect the assignment of R device-i ; 5.2) Assignment of the degree of impact of the task environment; According to the logical combination relationship between tasks and equipment at each level and the corresponding environmental factor impact assignment, the environmental factor impact assignment at each level is analyzed, and the relevant function expression is as follows: Unit task environment factors affect the assignment: R unit-i =R(device1,device2,…device m ,f(z)) Subtask environmental factors affect the assignment: R sub-task-i =R(unit1,unit2,…unit n ,f(y)) Assignment of the environmental impact level of the top-level task: R top-task-i =R(sub-unit1,sub-unit2,…sub-unit s ,f(x))。 5. The method for evaluating the environmental adaptability of ship equipment for typical tasks according to claim 1 is characterized in that: In step 6), let the environmental factor C i The influence weight is ω i , and obtain the total value of the impact degree of multiple environmental factors at different levels.

6. The method for evaluating the environmental adaptability of ship equipment for typical tasks according to claim 5 is characterized in that: In step 6), the total value of the impact degree of multiple environmental factors is expressed as follows: The total value R of multiple environmental factors affecting the equipment device-总 : R device-总 =∑ω i R device-i ; The total value R of multiple environmental factors affecting unit tasks unit-总 : R unit-总 =∑ω i R unit-i ; Subtask multiple environmental factors affect the total assignment R sub-task-总 : R sub-task-总 =∑ω i R sub-task-i ; The total value of the multi-environmental impact of the top-level task R top-task-总 : R top-task-总 =∑ω i R top-task-i 。 7. An electronic device, characterized in that: include: one or more processors; as well as a storage device for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors are caused to execute the method according to any one of claims 1 to 6.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

Images