A, system overview
1.1 wisdom construction background of the classroom
In the school, classroom teaching is the most important part of education students receive system, completes the teaching interactive link, is mastering the quality of teaching, the key to improve the teaching level. The existing in the teaching process, the traditional sign in link, doubt confirmation, questions the interactive link, classroom quiz link has many problems. Check-in process, the use of paper to sign, low efficiency and exist such phenomenon, the result is not convenient to teacher statistics; Interactive links and classroom quiz question tache, after selecting teachers give simple, orally or student raised his hand and answered, cannot obtain accurate statistical data, the teacher can only according to the general situation to determine whether the teaching, there is no accurate data, more can't consider the data mining and data statistical work late. Traditional way of teaching is not adapt to the needs of modern teaching, teaching based on Internet of things technology set wisdom wisdom, staff attendance, asset management, environment regulation, video monitoring and remote control of the classroom system in the integration of new modern wisdom in the gradual promotion of use. Wisdom of the classroom as a new form of education and modern teaching means, has brought new opportunities for education industry.
1.2 classroom main use wisdom
The three levels of the wisdom and can be expressed in networking (application layer, network layer, perception layer), using sensors, radio frequency identification (RFID) technology, such as information sensing equipment real-time perception any needed information, in accordance with the contract agreement, with possible network (such as WIFI based wireless LAN, mobile communications, telecommunication networks, etc.) access, anything connected to the Internet, information exchange and communication, implementation and content, content with people in the link, realize the wisdom of the object recognition and tracking, monitoring and management. At the same time, the wisdom of the classroom also can satisfy the school Internet of things technology professional introduction to open the Internet of things, the principle and application of sensor, wireless sensor network and application, RFID technology and application, Internet of things engineering and application, Internet standards and middleware technology, the Internet of things application system design course of practical training teaching need, and the Internet of things technology application for students or teachers provide a platform of project development.
To make the students through the wisdom of the classroom experiment platform, can grasp the Internet of things technology basic theory, the physical information system identification and perception theory and technology, computer network and data analysis and knowledge of information processing technology, communication technology, network technology, sensing technology information such as the broad professional knowledge, have a certain engineering application system development, practical ability and scientific research ability.
Second, the wisdom of the classroom experiment platform
Wisdom of the classroom on the basis of Internet of things engineering information platform, wireless switch as the core, constructs the WiFi wireless local area network (LAN), covering the wisdom of the classroom, and classroom cable network switches, network routers, fusion cable network, wireless local area network (LAN) so as to establish a key part of Internet of things, the network layer, all kinds of sensors to a server via a standard module connected to the Internet of things engineering information platform, a comprehensive coverage iot three levels of a unified platform for the Internet of things. Various handheld devices at the same time, other built-in WiFi module (laptop, mobile phone, etc.) can also be wireless access the experiment platform, become a part of the iot test equipment; Teachers and students practice in teaching and scientific research and development of other sensing module, through the WiFi devices with standard server connection, also can easily access the experiment platform.
Three, wisdom, the classroom system design scheme
Wisdom classroom based on the wireless switch as the core, build a comprehensive platform of sharing the Internet of things, all the equipment system through standard module WiFi wireless access Internet information server platform, through the server system software unified management front-end equipment.
The wisdom of the classroom into a comprehensive Internet of things application scenarios, used for the experiment and research students to innovate, and the teachers conducting scientific research. By reading the first staff attendance system data to determine whether there is in the classroom, if nobody in the classroom, the classroom all system closed; On the other hand, is in working condition. Wisdom classroom includes the following systems:
3.1 the teaching system
Teaching system by the built-in function of electronic whiteboard touch all-in-one PC projector, amplifier, speakers, wireless mic, pickup, interrogator-responder and form a complete set of control software.
Use of a built-in function of electronic whiteboard touch the projector instead of the traditional blackboard teaching, realize the dust-free teaching, protect the health of teachers and students, but on the projection screen can operate a computer, configuration interrogator-responder on each table, the realization of interactive classroom teaching between teachers and students.
3.2 the LED display system
LED display system composed of LED panel stitching, installed at the top of the blackboard in the classroom, is used to display the course name, professional class, the teacher in class, attendance, and the environmental data of various sensor acquisition in the classroom (indoor temperature and humidity, light, the concentration of carbon dioxide, etc.).
3.3 personnel attendance system
Personnel attendance system by RFID antenna, attendance card and form a complete set of control software.
In the classroom QianHouMen install a RFID antenna, using RFID tag (card) undertake to the student attendance statistics, to identification of people entering the classroom, for legitimate users attendance statistics, to alarm the illegal users. Through WiFi coverage at the same time, the attendance situation in remote monitoring, statistics, and archived print and so on.
3.4 lighting control system
Lighting control system by the lighting controller, light sensors, the human body sensor, curtain control system and form a complete set of control software.
First of all, through the body sensor to judge the corresponding position whether anyone in the classroom, this place, lighting control system and closed the curtain control system; On the other hand, in a state of work.
: 1, curtain control system installed in the window light sensor data, through gathering software according to the preset threshold, automatically open and close with the curtain to realize the compensation of light intensity in the classroom;
2, lighting control systems: the installation of classroom lighting sensor data, by analyzing the data, according to the preset software, to control the automatic opening and closing of the lights in the classroom, and can adjust the brightness of the lighting, indoor lighting intelligent control and energy conservation and emissions reduction.
3.5 the air conditioning control system
Air conditioning control system by the central air conditioning power controller, temperature and humidity sensor and control software.
Through the monitoring of temperature and humidity indoor temperature, through the analysis of data, according to the software default values, when indoor temperature and humidity is higher than the highest threshold automatically when open air conditioning. When indoor temperature and humidity is lower than the threshold automatically closed when the air conditioning, realize the automatic control of indoor temperature and humidity.
3.6 ventilation system
Ventilation system by suction fan, CO2 sensor, and form a complete set of monitoring software.
By CO2 sensor monitoring indoor CO2 concentration, by analyzing the data, according to the preset software, when software indoor CO2 concentration higher than the threshold value automatically open the exhaust fan to take a breath, added by outdoor air to reduce indoor CO2 concentration.
3.7 recorded video system
Host computer by recorded video recorded, tracking, host, video camera, a director of host and form a complete set of monitoring software.
Video recorded system for recording whole class content and live. Teachers and students of close-up, panoramic view, tracking the picture can be arbitrary switching, wisdom track shoot straight answer problem of students, and can be full of class and live.
