The Design and Implementation of Professional Quality Evaluation System for Oil Workers in Oil Gathering and Transferring Enterprise

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3.3.2. Operating Assessment System Design

Operating assessment system simulate Oil road and works scene according to standard operating procedure card operation and standard operating procedures. System provides some functions, such as virtual interactions in the form of personification, key steps in action, theory and matters needing attention with text options to choose from, mistake operation to give feedback in time ^[3].

4. Oil Workers Professional Quality Appraisal System Development

4.1. Technical Solution

Theory test system adopts B/S mode as the overall architecture, using .NET and SQLSERVER2005. Role-based process control, the system sets three different permissions, including employee, operations manager, the super administrator. According to the level of professional skills, the system accordingly designs five levels (primary works, intermediate class, senior worker, technician, senior technician) examination question bank, and use the algorithm of specific to select test questions to form paper.

Operating assessment system uses virtual reality technology to simulate Oil road and works scene. Equipment operates on the basis of personification of virtual interactions, and provides real-time feedback. The key technology of implementation includes: Scene modeling technology, scene, key equipment, oil and other entities were worked for 3 d modeling through the real measurement and the methods of shot; Virtual interactive technology, the application of virtual reality platform and programming language embedded in the ROUTE events controls interactive dynamic in the scene ^[4].

4.2. The Implementation of Evaluation System
4.2.1. Theory Test System Implementation

The system sets up three kinds of different operating permissions, including: Super administrator, it has the highest authority, and can manage all terminals to the administrator, and data operation permissions; Terminal administrator: belonging to a certain terminal, and it can only have operation permissions to this site data; Staff: belonging to a particular station, and it can only take part in the organization of examination. Next, as an administrator and ordinary staff identity respectively introduce the realization of the function of the system ^[5].

1. An administrator login system

Results show below Figure 2 when administrator login system.

Figure 2. The working interface when administrator login system

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System management: including department management, user management, subjects and the logged in user's password management and so on.

Questions bank management: management oil workers professional skill appraisal question bank management from topic and level, which can realize the increase, view, modification, and delete subject. The system supports four types of questions, including single choice, multiple choice questions, true or false question and essay question.

The examination paper management: according to the group strategy of generating test paper automatically and the management of the generated test paper. Administrators can custom paper structure, including the topic, score, number, levels, and the system forms paper according to the policies set by the administrators from random question selection in the question bank group, as shown in Figure 3. At the same time, it can provide view, delete, edit the status of display (True: employees can choose this paper exam, false: staff can't see this paper) the generated test paper.

Figure 3. The working interface of the paper structure customized

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Performance management: Test scores and student performance management. The system realizes Objective questions of test paper (single choice, multiple choices, true or false) are scored by the system automatically, subjective topic are scored by the instructor. The administrator can view the test scores.

2. Staff member login system

Results show below Figure 4 when staff member login system.

Figure 4. The working interface when staff member login system

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Employees can choose different levels (primary works, intermediate class, senior worker, technician and higher technician) to test. The system provides feedback immediately test results after submitting the test.

Theory exam: the employee can choose different levels (primary works, intermediate class, senior worker, technician and higher technician) by opened. System has the function of the countdown. If the time of the exam had come to the end, the answers will automatically terminate and be submitted.

Operation assessment: provide interface for operation assessment.

View test results: view scores and result feedback. The system provides the reference answer, and red marked wrong topic.

4.2.2. Assessment of Operating System

1. Virtual simulation operation assessment for standard operating procedure

The system uses modular design according to the standard operating procedures and script, check at the piece of sequential operations, and a strict time limit. ^[6] If any one of the key steps is error in operation that the entire project result is zero, and immediately terminate the examination. Standard for centrifugal pump start-up operation assessment project below Figure 5, that is divided into six modules. When every operating is completed that system can be immediate scoring reality in the left upper corner of the screen. It need click on the "submit" button when finish the whole project operation, and show the total score of the assessment.

Figure 5. Centrifugal pump start-up operation assessment project

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2. Flow switch operating virtual simulation operation assessment project

Assessment checks at the piece of sequential operations, and a strict time limit. If any one of the key steps is error in operation that the entire project result is zero, and immediately terminate the examination. System has the function of the countdown. If the time of the exam had come to the end, the answers will automatically terminate and be submitted. Figure 6 for oil into the pot to process switching operation assessment project.

Figure 6. Oil into the pot to process switching operation assessment project

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5. System Application

Chang-Qing oilfield company and Jiang-Han oilfield company imported the system, finished the question bank construction, and organized the new staff training and the professional skill appraisal. Details see Table 1. Chang-Qing oilfield company build question bank with 5620 exam question, organization of 510 new employees training appraisal and 324 professional skill appraisal. Jiang-Han oilfield company build question bank with 4300 exam question, organization of 464 new employees training appraisal and 284 professional skill appraisal. Practice shows that the system fully functional, stable running, safe and reliable, and basically meets the requirements of enterprise staff appraisal.

Table 1. System application

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