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This paper gives some mathematical models of RMS voltage, current and power for data acquisition and analysis in electric vehicle's drive-motor test, emphasizing the necessity to acquire the voltage and current value synchronously. Taking an alternating-current for example, this paper analyzes the errors brought by asynchronous acquisition. Based on an original laboratory motor test bed, a data acquisition system is designed by using LabView program. Appropriate hardware and software modules, with reasonable and complete data acquisition circuits are designed to fulfill the synchronous acquisition of voltage and current during the test process. This method can improve the accuracy of the data acquisition system and the reliability of test results.

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Talents Convergence (TC) provides power for the development of economy, and regional economic development providess gravitational field for TC, TC and regional economic development motive each other via interactivity. In this paper, key indexes of TC and regional economic development are studied and ejected, based on using the gray comprehensive relational grade to verify the correlation between TC and regional economic development in Qingdao, the synergetic mechanism model assesses the relationship between TC and regional economic development with the help of data in year 2003~2013. The results show that the coupling of TC and economic development are optimum, and in a good development trend, but the level of Talents Convergence remains to be further enhanced to promote the economic rapidly expansion in Qingdao. 2. Research on the Coordination Relationship between Talent Agglomeration and Economic Development The driving factors affecting the accumulation of talents mainly include the economic development level of the gathering place, the complete level of public facilities, employment opportunities, the number of relevant scientific research institutions, the level of educational development, the number of colleges and universities, the humanistic environment, and other interests, spirits and environment, and the economics of the gathering place. Development is the primary factor. The different stages of development of talent agglomeration will have different degrees of impact on economic development, and the different historical periods and different stages of economic development, the talent agglomeration model and the level of talent agglomeration are also different. This article will explore the relationship between talent pooling