Introduction

Innovation is the soul of a nation’s progress, also is the inexhaustible motive force for the prosperity of a country. Engineering innovation is one part of the national innovation system and has a very high the status in the country. At the same time, innovation is also the soul and power of the engineering development. Innovative talents should have the spirit of innovation and unity cooperation, but also have a strong ability of practical, engineering application, comprehensive, scientific research. They can analysis and solve problem independently. All of these abilities need to combine theory with engineering practice teaching.

We have realized that engineer only have narrow professional knowledge does not guarantee their innovative ability. “Thick foundation, Wide caliber”, “Quality Education”, “Subject Crossing” and so on were proposed in recent years in order to improve the quality of higher education and cultivate the talents with profound knowledge, good quality and high ability [2]. One of the prominent features of Xi’an Technological University teaching reform is to achieve the diversification of personnel training mode. So, the “photoelectric experimental class” was set which took the method of individualized to these students, trained them with the basic quality of strong creative scientific research and made them up to research-type professionals. Based on these methods, we also developed the photoelectric technology integrated experimental platform, the effective integration and optimization of optical experiment course. The research and construction of comprehensive training engineering innovation ability of photoelectric detection system research and development ability training, involved the courses of “teaching reform project”, “sensor”, “photoelectric technology basis”, “photoelectric signal detection” and “photoelectric imaging technology”, etc., provided a comprehensive experimental platform, created intelligent photoelectric laboratory environment, enhanced the learning interest of the students.

1

Understanding of innovation

It has long been recognized that engineers with limited expertise do not guarantee the engineer’s ability of innovate. To the engineers, the ability of solving problems implies an assumption that they are already used in engineering science knowledge to solve the technical problems. This assumption does not answer whether they have the ability to handle non-standard social and technological process. We can be divided the ability into two kinds, one is “hard power” and one is “soft power”. Here, “hard ability” refers to a basic professional knowledge and basic literacy, and the “soft ability” refers to all of these abilities not included in hard ability, and it is a kind of habit occupation behavior. “Hard ability” is the hard core of its relative to a professional position, it has a certain range within a certain minimum requirements. If it does not meet the minimum requirements, it will not be think as a professional engineer. It mainly includes the analysis ability of the basic mathematical, a professional basic knowledge and personal learning and application of knowledge. “Soft power” is not meant to be dispensable, but it has a personalized development of space, according to each person’s environment and the ability of different interests. The same profession can show a completely different development. For example, innovation ability, some people may be good at hardware manufacturing innovation, some people may be good at software process innovation, and others may be obsessed with the theory of innovation. Based on the above understanding and understanding of innovation ability, we have developed the innovation ability training platform based on the photoelectric detection technology. The following several main aspects of the platform are introduced.

2

Innovative experimental platform

The experiment platform of photoelectric technology innovation is set up based on the course syllabus and the requirements of the training objectives, such as “the sensor technology and application”, “the photoelectric technology foundation”, “the photoelectric signal detection” and “the photoelectric experimental class”, etc., the basic experiment teaching of recent years, a large number of the optoelectronic devices. By combining with the teaching content of modern photoelectric detection technology and MCU technology, we use the method of opening design of research and development. The experimental platform includes light, machine, electricity and other fields, also involves sensors, photoelectric detection, electronic circuit analysis and other courses. Through the application of skills training to enable students master the professional knowledge in practice, cultivate students’ innovative spirit and practical ability, to guide students the methods of study and innovative experiment. Hence, the students’ ability of scientific research and training of undergraduate teaching are combined organically.

2.2

Modular design content

Based on the practicability experiment of optoelectronic devices, a general experimental module is designed to extend the content of the experiment, and then extend the development of the depth and breadth of the experimental project. The module has a strong scalability. The circuit mode in experimental platform has been developed completely, including optical signal detection circuit, optical receiver module, photodiode receiver, photosensitive resistor composed of light control circuit; signal conditioning circuit includes a preamplifier circuit with adjustable gain, high pass filter and low pass filter; display alarm circuit comprises a digital tube display module, a 1602LCD display module, a buzzer alarm module, a music chip driver and a working module; counting, speed measurement and frequency measuring circuit; Signal chip related circuits include the acquisition of temperature and humidity signal, the smallest single-chip microcomputer system, digital signal output and display module; There are some other common modules: gas detection circuit and square wave generator circuit.

Fig. 1

the schematic of experimental module

3

Experimental platform features

4

Open experimental teaching mode

The reform of open experiment teaching based on the “photoelectric technology innovation experiment platform”, the guiding ideology of reform is strengthen the foundation, develop thinking, and cultivate ability. The open experiment teaching system is established, which is composed of three basic levels: “basic experimental skills training, comprehensive design ability training and creative design ability training”. In the course of “photoelectric technology foundation”, “photoelectric detection technology” and “single chip microcomputer principle” and so on, the experiment platform of photoelectric technology innovation and the teaching system are adopted. The teaching effect is better than before. The experimental platform is used for one of the compulsory courses contents in the experimental class, also use for an elective ordinary classes. Students can freely and independently design their working plan, and build their own experimental system. It is true that this kind of platform can meet the needs of students at different levels, especially for the top students to create a good learning and Practice the opportunity.

Conclusion

By optimizing the teaching content, combining with the new content of scientific research, improving the teaching methods and means, composing of a variety of circuit system experimental platform for research and development, students can independently design scheme for the cultivation of students’ practical ability, in order to cultivate students’ practical ability and creative ability, a multifunctional experiment platform was built. Modular design concept provides more resources for students. But how to design the system and demonstration program still requires students to learn and research; using modern means to reform and improve the experimental equipment, greatly reducing the cost of experimental equipment, which has been excavated and the maximum use of resources.