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School News Remote Recognition and Attendance System Solution

chrispeng January 7, 2022 Other

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1 Introduction

With the rapid development of radio frequency technology in recent years, the use of radio frequency technology to effectively monitor personnel has become a development trend. The radio frequency personnel management system uses active radio frequency tags as product identification, and the radio frequency tags can store personnel related information. Radio frequency technology can automatically realize the collection and transmission of personnel information without manual intervention, does not affect the normal work and study of personnel, and does not change the daily work habits.

According to investigations by relevant departments, more than 90% of parents urgently need to know the safety and daily performance of their children in school in time, as well as accurately learn relevant information about the school. Similarly, for schools, how to effectively carry out communication and exchanges with parents is also an important topic that school administrators have been working hard to explore. Discovering the abnormal performance of students in time and notifying them to parents will undoubtedly play a decisive role in the results of education and training. “Work hard with parents” is the common aspiration of many school administrators. At present, there are two main forms of communication between teachers and students’ parents:

1. Communicate to all parents in the form of parent conferences, parents’ arrival at school, transcripts, written notices, etc.;

2. Individual communication for specific problems of certain children by means of mutual visits, written or telephone contact.

Although the communication and contact between teachers and parents have been realized to a certain extent through the above two forms, there are still some loopholes. First, due to personnel’s energy, time and space constraints, the information delivered is limited and not timely. Both teachers and parents have only mastered part of the information about students, and it is difficult to educate students in a targeted manner. Secondly, information transmission is mostly one-way transmission from the school to the parents. Parents do not participate enough, and students have no opportunity to express their opinions. As a result, some distorted information has appeared, which has a negative impact on the development of students. Thirdly, there are only a small number of parents who really realize home-school communication through the above two forms. A considerable number of parents can only learn about the common information about the development of children of the same age, but the information channels to understand the characteristics of their children are not smooth. Smooth home-school communication has become a new requirement for interactive education in the information age. And effective communication is an important topic that many school administrators have been exploring.

In view of the current characteristics of the general application of the Internet, mobile phones (or PHS) and short messages in the masses, “School News” pioneered the introduction of emerging mobile communication technology, Internet technology, WAP technology and RFID wireless identification technology The campus builds an air bridge between the family and the school to provide parents with a convenient and efficient communication platform. It has the characteristics of fast and convenient communication. It is free to communicate and speaks freely. It is very popular among parents and teachers. “School News” connects school education and family education closely, guarantees the safety of students leaving school, and also provides a convenient way for school affairs to be open.

The application of “School News Communication” will surely enhance the relationship between parents and teachers, close the relationship between school and family, improve school management, accept parental supervision, and improve the quality of teaching. Through this platform, teachers can establish close contact with parents. Parents can put forward opinions or suggestions on teachers’ teaching through this platform, and promote the overall improvement of the effectiveness of school home-school cooperation.

2. The application status of “Xiaoxuetong” management system

2.1 Basic concepts

The traditional “School News Communication” includes voice “School News Communication” and SMS “School News Communication”. Voice “Xiaoxuetong” mainly uses the network resources of telecom operators to set up telephone voice systems, purchase voice equipment and dedicated voice terminals, and use the “Xiaoxuetong” platform to provide telephone voice services for teachers, parents, and students. The short message “School News Communication” mainly uses the mobile phone short message, a cost-effective mobile communication technology, as an information method for teachers and parents to communicate.

Adopted by Boao “School News”RFIDActive identification technology combines automatic identification technology with the operator’s SMS platform, which is the first in China. Boao Electronics has established technical cooperation relationships with “School News” platform operators in many provinces and cities in China, laying a leading position in the domestic “School News” industry application technology platform. I believe that with Boao Electronics’ industry-leading wireless automatic identification technology and the operator’s mobile internet technology and education platform, it will definitely be able to establish a new generation of home-school interactive systems and education platforms with various “School News” operator partners. Standards, obtain maximum resource integration and mutual benefit, and become an absolute leader in the industry.

2.2 Reading and recognition methods

At present, in the “Xiaoxuetong” management system, there are three main methods for readers to read and identify radio frequency cards: short-distance manual swiping, long-distance passive identification, and long-distance active identification. In system integration, this is a very important issue, because the choice of recognition method will directly affect the read rate and convenience of the system.

The short-distance manual card swiping method is mainly for the application of earlier high-frequency and low-frequency reading devices (such as bus cards, access control cards, etc.). Since the reading range is roughly within 20cm from the reader, the person wearing the RF card must go forward It can be read close to the reader. Although this method can guarantee a 100% reading rate and is low in cost, because it needs to be scanned one by one, crowding at the school gate will be formed during the peak period of school and school, and it is easy to cause safety accidents. At present, this working method is almost completely eliminated.

The long-distance passive identification method is mainly the application of UHF (433M, 868M, 915M, etc.) reading equipment and passive radio frequency cards. The reading range can reach about 10 meters, which can solve the problem of scanning one by one in the short-distance manual swiping method. Some well-designed devices can support up to 50 RF cards to be read at the same time, which can greatly increase the speed of personnel without queuing in and out of the school gate. But this method still has many application problems. First, the passive radio frequency card cannot be blocked by the human body or metal objects. This requires students not to face the reader antenna position when entering and leaving the school, and the radio frequency card cannot be placed close to the human body or placed in the schoolbag; second, passive radio frequency Cards cannot be placed with metal objects; thirdly, personnel cannot enter and exit in large amounts. These shortcomings caused this technology to basically not be used in the field of “School Communication” in the past.

The long-distance active identification method (mainly in the 2.4-2.48G frequency band) is currently the most successful application and is the most popular identification method in the mining industry. This recognition method is not only extremely far away, it can be easily read within a range of 50 meters (a stable 80-meter reading in the air), and it can also support up to 200 RF cards to read at the same time. The most important thing is to overcome The human body, metal, etc. are blocked, even if hundreds of students enter and exit together, 100% reading is guaranteed. The comparison list of other detailed technical indicators is as follows:

3 scheme design

Shanghai Boao Electronic Technology Co., Ltd., together with telecom operators and SP service providers, developed the “School News Communication” system with their respective comprehensive resource advantages and scientific research advantages. This system integrates SMS, call, Internet and other all-round modernization The means of communication are integrated to build an information exchange platform for schools, teachers, parents and children.

The “School News Communication” application will greatly expand the traditional communication mode between family, school, and students, and with its brand-new concept and high-tech content, it will create a new era of informatization and intelligent home-school interaction. .

The basic application principle of Boao RFID automatic identification technology in the “School News” system is roughly as follows: each student carries an RFID or wireless sensor identification card (which can be used as an electronic student ID card), after arriving at the school gate, near the school gate The two sensors will read the identification and send the information to the data center server. After the server performs the processing and judgment, the SP service provider sends a text message to the student’s parents’ mobile phone, such as “Dad, I have arrived at school safely.” Dad, I will go home soon after school.” At the same time, the server will also save all students’ access information and organize it into a report for the school and parents to query. Using the home-school interactive network platform, the head teacher can send each student’s school learning and living conditions to the parents’ mobile phones and e-mails, either regularly or irregularly, eliminating the need for teachers to notify one by one or parents’ absence from parent meetings. The various communication barriers produced are convenient and quick. Similar systems have been widely used in developed countries such as the United States and Europe, and have become a bridge between teachers and parents, and are very popular.

The network connection diagram of “Xiaoxuetong” equipment is shown in Figure 2.

3.1 System principle

In response to the operator’s requirements for the construction of the “School News Communication” system, Shanghai Boao designed the “School News Communication” system with access readers, student cards (active RFID cards), and SP installed in the operator’s data center and school gates. Management system composition.

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