Research on Capability Evaluation System for Elevator Inspector

This paper analyzes the current situation of elevator inspectors' training based on the QFD method. Then, an elevator inspector's capability evaluation system for elevator inspector is established. The evaluation index and the weight determination are presented in detail. The research can favor to assess the comprehensive capabilities of elevator inspectors, and provide a theoretical reference of appropriate training activities for elevator inspectors.


Introduction
With the rapid development of society and economy, the number of special equipment has grown at a rate of nearly 10% each year.Especially, the elevators closely related to daily work and life of people, have received much attention from society and the government [1] .Therefore, the establishment of a comprehensive evaluation system to identify and improve the elevator inspector's business level, so as to ensure the safe operation of elevator equipment, is of great significance and has become the development trend in this field [2] .

QFD-based demand analysis of capability evaluation system for elevator inspector
A QFD -based demand analysis is conducted to explore the relevance and sequencing of the evaluation needs.Through the progressive analysis at each level, the corresponding training objectives and training methods for elevator inspectors are established from the strategic and organizational levels, as well as the corresponding policy mechanisms [3] .The QFD-based requirements analysis flow chart is shown in Figure 1.
According to the demand analysis, it can be found that a complete and standard capability evaluation system needs to be established as an evaluation benchmark for elevator inspector performance [4] .At the same time, elevator inspectors need to be regularly assessed, evaluated, educated and trained to promote their comprehensive capabilities.(1) The establishment of elevator inspector skills evaluation criteria based on TSG Z8002-2013, GB/T 7024-2008 According to the results of the needs analysis, a set of evaluation criteria for the qualification of elevator inspectors from the aspects of qualification, inspection ability, learning and training, technical achievements, practical operation, and annual assessment shall be established [5] .

Establishment of elevator inspector capability evaluation system
This standard is based on <elevators, escalators, moving sidewalk terminology> (TSG Z8002-2013), <special equipment inspection personnel assessment rules> GB/T 7024-2008.The terminology definitions, evaluation indicators, calculation methods, and skill grading of skills are applicable to the skill evaluation of elevator in-service inspection personnel [6] .Details are as in Figure 2.  (

2) Evaluation of elevator inspector ability based on fuzzy comprehensive evaluation
For the elevator inspector evaluation problem, most of the indicators are qualitative.By introducing the concept of membership degree, the boundary of membership function classification index is constructed to solve the problem.Finally, a fuzzy comprehensive evaluation can be performed [7] .The specific flow chart is shown in Figure 3.
Through the above process, a complete elevator inspector capability evaluation system has been established, which can comprehensively evaluate the elevator inspector's theoretical knowledge, methods, skills and other overall qualities [8] .The evaluation system established is shown in Table 1.

Single factor assement
Build membership degree matrix

Summary
This study focuses on the construction of an elevator inspector capability assessment system.From system and actual needs analysis to standardized evaluation process management, an elevator inspector capacity evaluation system is established.The platform has the ability to assess the comprehensive capabilities of elevator inspectors and can favor the appropriate training activities for elevator inspectors.

Figure 1 .
Figure 1.Flow chart of requirements analysis based on QFD.

Table 1 .
Elevator Inspector Skills Evaluation System